Merge remote-tracking branch 'old-squeek2lvgl/master'

.gitignore

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+*.o
+Pipfile.lock

COPYING

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+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

Pipfile

@@ -0,0 +1,13 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+pyyaml = "*"
+gitpython = "*"
+
+[dev-packages]
+
+[requires]
+python_version = "3"

README.md

@@ -0,0 +1,97 @@
+# squeek2lvgl
+
+squeek2lvgl is a Python script and an accompanying C library that make it possible to use [squeekboard] keyboard layouts with [LVGL]'s keyboard widget. To achieve this, [squeekboard]'s YAML syntax for layout definitions is converted into C files that, together with the library C files, can then be added to an [LVGL] project.
+
+To access [squeekboard]'s layout files, squeek2lvgl shallowly clones the [squeekboard] git repository into a temporary directory and purges it before exiting.
+
+## Usage
+
+First, set up the virtual Python environment and install the dependencies with
+
+```
+$ pipenv install
+```
+
+Afterwards you can execute the script with `pipenv run`. Use the `-h` / `--help` flag to print detailed usage instructions.
+
+```
+$ pipenv run python squeek2lvgl.py --help
+usage: squeek2lvgl.py [-h] --input INPUT --name NAME
+                      [--extra-top-row-base EXTRA_TOP_ROW_BASE]
+                      [--extra-top-row-upper EXTRA_TOP_ROW_UPPER]
+                      [--shift-keycap SHIFT_KEYCAP]
+                      [--surround-space-with-arrows] [--generate-scancodes]
+                      --output OUTPUT
+
+Convert squeekboard layouts to LVGL-compatible C code.
+
+options:
+  -h, --help            show this help message and exit
+  --input INPUT         squeekboard layout to use as input for generation. Has
+                        to be a YAML file path relative to data/keyboards. Can
+                        be specified multiple times.
+  --name NAME           name for the layout. Needs to be specified once for
+                        every --input flag.
+  --extra-top-row-base EXTRA_TOP_ROW_BASE
+                        additional key row to add at the top of the base
+                        layer.
+  --extra-top-row-upper EXTRA_TOP_ROW_UPPER
+                        additional key row to add at the top of the upper
+                        layer.
+  --shift-keycap SHIFT_KEYCAP
+                        key caption for the Shift key. Defaults to "Shift".
+  --surround-space-with-arrows
+                        insert left / right arrow before / after space key
+  --generate-scancodes  also generate scancode tables (only works for US
+                        layout currently)
+  --output OUTPUT       output directory for generated files
+
+```
+
+As an example, the following command converts [squeekboard's US layout] to C
+
+```
+$ pipenv run python squeek2lvgl.py --input us.yaml --output .
+```
+
+When the process has finished, `sq2lv_layouts.h` and `sq2lv_layouts.c` will have been written into the current directory. Check the [examples] folder for further details about the generated files.
+
+To facilitate usage, a minimalist C API is available in [sq2lv.h] and [sq2lv.c].
+
+### Integrating into a project
+
+Similar to [LVGL] squeek2lvgl should be added into a project as a git submodule. The generated C files assume that you have integrated [LVGL] as a submodule in the `./lvgl` folder. The C library files in turn assume that you have imported squeek2lvgl as a submodule one folder above the location of the generated files.
+
+The following is an example directory hierarchy:
+
+```
+$ tree .
+.
+├── lvgl             # LVGL submodule
+│   ├── ...
+├── main.c           # Project's own source files
+├── ...
+├── sq2lv_layouts.c  # Layouts generated with squeek2lvgl
+├── sq2lv_layouts.h
+├── ...
+├── squeek2lvgl      # squeek2lvgl submodule
+│   ├── sq2lv.c      # squeek2lvgl library code
+│   ├── sq2lv.h
+│   ├── ...
+├── ...
+```
+
+Using the directory structure above, you can then add `sq2lv_layouts.c` and `squeek2lvgl/sq2lv.c` into your build process just like the rest of your project's sources.
+
+## License
+
+squeek2lvgl is licensed under the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+[squeekboard] and its keyboard layouts are licensed under the GNU General Public License version 3.0.
+
+[LVGL]: https://github.com/lvgl/lvgl
+[squeekboard]: https://gitlab.gnome.org/World/Phosh/squeekboard
+[squeekboard's US layout]: https://gitlab.gnome.org/World/Phosh/squeekboard/-/blob/master/data/keyboards/us.yaml
+[examples]: ./examples
+[sq2lv.h]: ./sq2lv.h
+[sq2lv.c]: ./sq2lv.c

examples/de-with-custom-shift-keycap/sq2lv_layouts.c

@@ -0,0 +1,253 @@
+/**
+ * Auto-generated with squeek2lvgl
+ **/
+
+#include "sq2lv_layouts.h"
+
+#define SQ2LV_SYMBOL_SHIFT "ABC"
+
+/**
+ * Layout: German - generated from de
+ **/
+
+static const char * const name_de = "German";
+static const char * const short_name_de = "de";
+
+/* Layer: Lowercase letters - generated from base */
+
+static const int num_keys_lower_de = 36;
+
+static const char * const keycaps_lower_de[] = { \
+    "q", "w", "e", "r", "t", "z", "u", "i", "o", "p", "\n", \
+    "a", "s", "d", "f", "g", "h", "j", "k", "l", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "y", "x", "c", "v", "b", "n", "m", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", "äÄ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ",", ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_lower_de[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_lower_de = 0;
+
+static const int * const modifier_idxs_lower_de = NULL;
+
+static const int num_switchers_lower_de = 3;
+
+static const int switcher_idxs_lower_de[] = { \
+    19, 28, 29 \
+};
+
+static const int switcher_dests_lower_de[] = { \
+    1, 2, 4 \
+};
+
+/* Layer: Uppercase letters - generated from upper */
+
+static const int num_keys_upper_de = 36;
+
+static const char * const keycaps_upper_de[] = { \
+    "Q", "W", "E", "R", "T", "Z", "U", "I", "O", "P", "\n", \
+    "A", "S", "D", "F", "G", "H", "J", "K", "L", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "Y", "X", "C", "V", "B", "N", "M", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", "äÄ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "!", "?", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_upper_de[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_ACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_upper_de = 0;
+
+static const int * const modifier_idxs_upper_de = NULL;
+
+static const int num_switchers_upper_de = 3;
+
+static const int switcher_idxs_upper_de[] = { \
+    19, 28, 29 \
+};
+
+static const int switcher_dests_upper_de[] = { \
+    0, 2, 4 \
+};
+
+/* Layer: Numbers / symbols - generated from numbers */
+
+static const int num_keys_numbers_de = 37;
+
+static const char * const keycaps_numbers_de[] = { \
+    "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "\n", \
+    "@", "#", "€", "%", "&", "-", "_", "+", "(", ")", "\n", \
+    "*/=", ";", "\"", "'", ":", "=", "<", ">", LV_SYMBOL_BACKSPACE, "\n", \
+    "abc", "äÄ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ",", ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_numbers_de[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_numbers_de = 0;
+
+static const int * const modifier_idxs_numbers_de = NULL;
+
+static const int num_switchers_numbers_de = 3;
+
+static const int switcher_idxs_numbers_de[] = { \
+    20, 29, 30 \
+};
+
+static const int switcher_dests_numbers_de[] = { \
+    3, 0, 4 \
+};
+
+/* Layer: Symbols - generated from symbols */
+
+static const int num_keys_symbols_de = 37;
+
+static const char * const keycaps_symbols_de[] = { \
+    "~", "`", "´", "|", "·", "√", "µ", "÷", "×", "¶", "\n", \
+    "©", "®", "£", "$", "¥", "^", "°", "*", "{", "}", "\n", \
+    "123", "\\", "/", "§", "π", "τ", "[", "]", LV_SYMBOL_BACKSPACE, "\n", \
+    "abc", "äÄ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ",", ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_symbols_de[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_symbols_de = 0;
+
+static const int * const modifier_idxs_symbols_de = NULL;
+
+static const int num_switchers_symbols_de = 3;
+
+static const int switcher_idxs_symbols_de[] = { \
+    20, 29, 30 \
+};
+
+static const int switcher_dests_symbols_de[] = { \
+    2, 0, 4 \
+};
+
+/* Layer: Special characters - generated from eschars */
+
+static const int num_keys_special_de = 37;
+
+static const char * const keycaps_special_de[] = { \
+    "ä", "è", "é", "ö", "ü", "Ä", "È", "É", "Ö", "Ü", "\n", \
+    "à", "â", "ê", "î", "ô", "À", "Â", "È", "Î", "Ô", "\n", \
+    "123", "«", "»", "ç", "Ç", "æ", "œ", "ß", LV_SYMBOL_BACKSPACE, "\n", \
+    "abc", "äÄ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "„", "“", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_special_de[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_ACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_special_de = 0;
+
+static const int * const modifier_idxs_special_de = NULL;
+
+static const int num_switchers_special_de = 3;
+
+static const int switcher_idxs_special_de[] = { \
+    20, 29, 30 \
+};
+
+static const int switcher_dests_special_de[] = { \
+    2, 0, 0 \
+};
+
+/* Layer array */
+
+static const int num_layers_de = 5;
+
+static const sq2lv_layer_t layers_de[] = {
+    {
+        .num_keys = num_keys_lower_de,
+        .keycaps = keycaps_lower_de,
+        .attributes = attributes_lower_de,
+        .num_modifiers = num_modifiers_lower_de,
+        .modifier_idxs = modifier_idxs_lower_de,
+        .num_switchers = num_switchers_lower_de,
+        .switcher_idxs = switcher_idxs_lower_de,
+        .switcher_dests = switcher_dests_lower_de
+    },
+    {
+        .num_keys = num_keys_upper_de,
+        .keycaps = keycaps_upper_de,
+        .attributes = attributes_upper_de,
+        .num_modifiers = num_modifiers_upper_de,
+        .modifier_idxs = modifier_idxs_upper_de,
+        .num_switchers = num_switchers_upper_de,
+        .switcher_idxs = switcher_idxs_upper_de,
+        .switcher_dests = switcher_dests_upper_de
+    },
+    {
+        .num_keys = num_keys_numbers_de,
+        .keycaps = keycaps_numbers_de,
+        .attributes = attributes_numbers_de,
+        .num_modifiers = num_modifiers_numbers_de,
+        .modifier_idxs = modifier_idxs_numbers_de,
+        .num_switchers = num_switchers_numbers_de,
+        .switcher_idxs = switcher_idxs_numbers_de,
+        .switcher_dests = switcher_dests_numbers_de
+    },
+    {
+        .num_keys = num_keys_symbols_de,
+        .keycaps = keycaps_symbols_de,
+        .attributes = attributes_symbols_de,
+        .num_modifiers = num_modifiers_symbols_de,
+        .modifier_idxs = modifier_idxs_symbols_de,
+        .num_switchers = num_switchers_symbols_de,
+        .switcher_idxs = switcher_idxs_symbols_de,
+        .switcher_dests = switcher_dests_symbols_de
+    },
+    {
+        .num_keys = num_keys_special_de,
+        .keycaps = keycaps_special_de,
+        .attributes = attributes_special_de,
+        .num_modifiers = num_modifiers_special_de,
+        .modifier_idxs = modifier_idxs_special_de,
+        .num_switchers = num_switchers_special_de,
+        .switcher_idxs = switcher_idxs_special_de,
+        .switcher_dests = switcher_dests_special_de
+    }
+};
+
+/**
+ * Public interface
+ **/
+
+const int sq2lv_num_layouts = 1;
+
+const sq2lv_layout_t sq2lv_layouts[] = {
+    /* German */
+    {
+        .name = name_de,
+        .short_name = short_name_de,
+        .num_layers = num_layers_de,
+        .layers = layers_de
+    }
+};
+
+const char * const sq2lv_layout_names =
+    "German";
+
+const char * const sq2lv_layout_short_names =
+    "de";

examples/de-with-custom-shift-keycap/sq2lv_layouts.h

@@ -0,0 +1,63 @@
+/**
+ * Auto-generated with squeek2lvgl
+ **/
+
+#ifndef SQ2LV_LAYOUTS_H
+#define SQ2LV_LAYOUTS_H
+
+#include "lvgl/lvgl.h"
+
+#define SQ2LV_SCANCODES_ENABLED 0
+
+/* Key attributes */
+#define SQ2LV_CTRL_NON_CHAR     (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKED)
+#define SQ2LV_CTRL_MOD_ACTIVE   (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE)
+#define SQ2LV_CTRL_MOD_INACTIVE (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE | LV_BTNMATRIX_CTRL_CHECKED)
+
+/* Layout IDs, values can be used as indexes into the sq2lv_layouts array */
+typedef enum {
+    SQ2LV_LAYOUT_NONE = -1,
+    SQ2LV_LAYOUT_DE = 0
+} sq2lv_layout_id_t;
+
+/* Layer type */
+typedef struct {
+    /* Number of keys */
+    const int num_keys;
+    /* Key caps */
+    const char * const * const keycaps;
+    /* Key attributes */
+    const lv_btnmatrix_ctrl_t * const attributes;
+    /* Number of modifier keys */
+    const int num_modifiers;
+    /* Button indexes of modifier keys */
+    const int * const modifier_idxs;
+    /* Number of buttons that trigger a layer switch */
+    const int num_switchers;
+    /* Button indexes that trigger a layer switch */
+    const int * const switcher_idxs;
+    /* Indexes of layers to jump to when triggering layer switch buttons */
+    const int * const switcher_dests;
+} sq2lv_layer_t;
+
+/* Layout type */
+typedef struct {
+    /* Layout name */
+    const char * const name;
+    /* Layout short name */
+    const char * const short_name;
+    /* Total number of layers */
+    const int num_layers;
+    /* Layers array */
+    const sq2lv_layer_t * const layers;
+} sq2lv_layout_t;
+
+/* Layouts */
+extern const int sq2lv_num_layouts;
+extern const sq2lv_layout_t sq2lv_layouts[];
+
+/* Layout names (suitable for use in lv_dropdown_t) */
+extern const char * const sq2lv_layout_names;
+extern const char * const sq2lv_layout_short_names;
+
+#endif /* SQ2LV_LAYOUTS_H */

examples/es+fr+us/sq2lv_layouts.c

@@ -0,0 +1,677 @@
+/**
+ * Auto-generated with squeek2lvgl
+ **/
+
+#include "sq2lv_layouts.h"
+
+#define SQ2LV_SYMBOL_SHIFT "Shift"
+
+/**
+ * Layout: Spanish - generated from es
+ **/
+
+static const char * const name_es = "Spanish";
+static const char * const short_name_es = "es";
+
+/* Layer: Lowercase letters - generated from base */
+
+static const int num_keys_lower_es = 37;
+
+static const char * const keycaps_lower_es[] = { \
+    "q", "w", "e", "r", "t", "y", "u", "i", "o", "p", "\n", \
+    "a", "s", "d", "f", "g", "h", "j", "k", "l", "ñ", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "z", "x", "c", "v", "b", "n", "m", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", "áÁ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "?", ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_lower_es[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_lower_es = 0;
+
+static const int * const modifier_idxs_lower_es = NULL;
+
+static const int num_switchers_lower_es = 3;
+
+static const int switcher_idxs_lower_es[] = { \
+    20, 29, 30 \
+};
+
+static const int switcher_dests_lower_es[] = { \
+    1, 2, 4 \
+};
+
+/* Layer: Uppercase letters - generated from upper */
+
+static const int num_keys_upper_es = 37;
+
+static const char * const keycaps_upper_es[] = { \
+    "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "\n", \
+    "A", "S", "D", "F", "G", "H", "J", "K", "L", "Ñ", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "Z", "X", "C", "V", "B", "N", "M", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", "áÁ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "¿", ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_upper_es[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_ACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_upper_es = 0;
+
+static const int * const modifier_idxs_upper_es = NULL;
+
+static const int num_switchers_upper_es = 3;
+
+static const int switcher_idxs_upper_es[] = { \
+    20, 29, 30 \
+};
+
+static const int switcher_dests_upper_es[] = { \
+    0, 2, 4 \
+};
+
+/* Layer: Numbers / symbols - generated from numbers */
+
+static const int num_keys_numbers_es = 37;
+
+static const char * const keycaps_numbers_es[] = { \
+    "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "\n", \
+    "@", "#", "€", "%", "&", "-", "_", "+", "(", ")", "\n", \
+    "*/=", ",", "\"", "'", ":", ";", "!", "=", LV_SYMBOL_BACKSPACE, "\n", \
+    "abc", "áÁ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "?", ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_numbers_es[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_numbers_es = 0;
+
+static const int * const modifier_idxs_numbers_es = NULL;
+
+static const int num_switchers_numbers_es = 3;
+
+static const int switcher_idxs_numbers_es[] = { \
+    20, 29, 30 \
+};
+
+static const int switcher_dests_numbers_es[] = { \
+    3, 0, 4 \
+};
+
+/* Layer: Symbols - generated from symbols */
+
+static const int num_keys_symbols_es = 37;
+
+static const char * const keycaps_symbols_es[] = { \
+    "~", "`", "|", "·", "√", "π", "τ", "÷", "×", "¶", "\n", \
+    "©", "®", "£", "$", "¥", "^", "°", "*", "{", "}", "\n", \
+    "123", "\\", "/", "<", ">", "=", "[", "]", LV_SYMBOL_BACKSPACE, "\n", \
+    "abc", "áÁ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "?", ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_symbols_es[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_symbols_es = 0;
+
+static const int * const modifier_idxs_symbols_es = NULL;
+
+static const int num_switchers_symbols_es = 3;
+
+static const int switcher_idxs_symbols_es[] = { \
+    20, 29, 30 \
+};
+
+static const int switcher_dests_symbols_es[] = { \
+    2, 0, 4 \
+};
+
+/* Layer: Special characters - generated from eschars */
+
+static const int num_keys_special_es = 37;
+
+static const char * const keycaps_special_es[] = { \
+    "á", "é", "í", "ó", "ú", "Á", "É", "Í", "Ó", "Ú", "\n", \
+    "à", "è", "ì", "ò", "ù", "À", "È", "Ì", "Ò", "Ù", "\n", \
+    "123", "ü", "ç", "ï", "Ü", "Ç", "Ï", "¡", LV_SYMBOL_BACKSPACE, "\n", \
+    "abc", "áÁ", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "«", "»", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_special_es[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_ACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_special_es = 0;
+
+static const int * const modifier_idxs_special_es = NULL;
+
+static const int num_switchers_special_es = 3;
+
+static const int switcher_idxs_special_es[] = { \
+    20, 29, 30 \
+};
+
+static const int switcher_dests_special_es[] = { \
+    2, 0, 0 \
+};
+
+/* Layer array */
+
+static const int num_layers_es = 5;
+
+static const sq2lv_layer_t layers_es[] = {
+    {
+        .num_keys = num_keys_lower_es,
+        .keycaps = keycaps_lower_es,
+        .attributes = attributes_lower_es,
+        .num_modifiers = num_modifiers_lower_es,
+        .modifier_idxs = modifier_idxs_lower_es,
+        .num_switchers = num_switchers_lower_es,
+        .switcher_idxs = switcher_idxs_lower_es,
+        .switcher_dests = switcher_dests_lower_es
+    },
+    {
+        .num_keys = num_keys_upper_es,
+        .keycaps = keycaps_upper_es,
+        .attributes = attributes_upper_es,
+        .num_modifiers = num_modifiers_upper_es,
+        .modifier_idxs = modifier_idxs_upper_es,
+        .num_switchers = num_switchers_upper_es,
+        .switcher_idxs = switcher_idxs_upper_es,
+        .switcher_dests = switcher_dests_upper_es
+    },
+    {
+        .num_keys = num_keys_numbers_es,
+        .keycaps = keycaps_numbers_es,
+        .attributes = attributes_numbers_es,
+        .num_modifiers = num_modifiers_numbers_es,
+        .modifier_idxs = modifier_idxs_numbers_es,
+        .num_switchers = num_switchers_numbers_es,
+        .switcher_idxs = switcher_idxs_numbers_es,
+        .switcher_dests = switcher_dests_numbers_es
+    },
+    {
+        .num_keys = num_keys_symbols_es,
+        .keycaps = keycaps_symbols_es,
+        .attributes = attributes_symbols_es,
+        .num_modifiers = num_modifiers_symbols_es,
+        .modifier_idxs = modifier_idxs_symbols_es,
+        .num_switchers = num_switchers_symbols_es,
+        .switcher_idxs = switcher_idxs_symbols_es,
+        .switcher_dests = switcher_dests_symbols_es
+    },
+    {
+        .num_keys = num_keys_special_es,
+        .keycaps = keycaps_special_es,
+        .attributes = attributes_special_es,
+        .num_modifiers = num_modifiers_special_es,
+        .modifier_idxs = modifier_idxs_special_es,
+        .num_switchers = num_switchers_special_es,
+        .switcher_idxs = switcher_idxs_special_es,
+        .switcher_dests = switcher_dests_special_es
+    }
+};
+
+/**
+ * Layout: French - generated from fr
+ **/
+
+static const char * const name_fr = "French";
+static const char * const short_name_fr = "fr";
+
+/* Layer: Lowercase letters - generated from base */
+
+static const int num_keys_lower_fr = 35;
+
+static const char * const keycaps_lower_fr[] = { \
+    "a", "z", "e", "r", "t", "y", "u", "i", "o", "p", "\n", \
+    "q", "s", "d", "f", "g", "h", "j", "k", "l", "m", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "w", "x", "c", "v", "b", "n", ".", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "âÂ", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_lower_fr[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_lower_fr = 0;
+
+static const int * const modifier_idxs_lower_fr = NULL;
+
+static const int num_switchers_lower_fr = 3;
+
+static const int switcher_idxs_lower_fr[] = { \
+    20, 29, 33 \
+};
+
+static const int switcher_dests_lower_fr[] = { \
+    1, 2, 4 \
+};
+
+/* Layer: Uppercase letters - generated from upper */
+
+static const int num_keys_upper_fr = 35;
+
+static const char * const keycaps_upper_fr[] = { \
+    "A", "Z", "E", "R", "T", "Y", "U", "I", "O", "P", "\n", \
+    "Q", "S", "D", "F", "G", "H", "J", "K", "L", "M", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "W", "X", "C", "V", "B", "N", ",", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "âÂ", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_upper_fr[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_ACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_upper_fr = 0;
+
+static const int * const modifier_idxs_upper_fr = NULL;
+
+static const int num_switchers_upper_fr = 3;
+
+static const int switcher_idxs_upper_fr[] = { \
+    20, 29, 33 \
+};
+
+static const int switcher_dests_upper_fr[] = { \
+    0, 2, 4 \
+};
+
+/* Layer: Numbers / symbols - generated from numbers */
+
+static const int num_keys_numbers_fr = 35;
+
+static const char * const keycaps_numbers_fr[] = { \
+    "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "\n", \
+    "@", "#", "€", "%", "&", "-", "_", "+", "(", ")", "\n", \
+    "*/=", ",", "\"", "'", ":", ";", "!", "?", LV_SYMBOL_BACKSPACE, "\n", \
+    "abc", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "âÂ", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_numbers_fr[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_numbers_fr = 0;
+
+static const int * const modifier_idxs_numbers_fr = NULL;
+
+static const int num_switchers_numbers_fr = 3;
+
+static const int switcher_idxs_numbers_fr[] = { \
+    20, 29, 33 \
+};
+
+static const int switcher_dests_numbers_fr[] = { \
+    3, 0, 4 \
+};
+
+/* Layer: Symbols - generated from symbols */
+
+static const int num_keys_symbols_fr = 35;
+
+static const char * const keycaps_symbols_fr[] = { \
+    "~", "`", "|", "·", "√", "π", "τ", "÷", "×", "¶", "\n", \
+    "©", "®", "£", "$", "¥", "^", "°", "*", "{", "}", "\n", \
+    "123", "\\", "/", "<", ">", "=", "[", "]", LV_SYMBOL_BACKSPACE, "\n", \
+    "abc", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "âÂ", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_symbols_fr[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_symbols_fr = 0;
+
+static const int * const modifier_idxs_symbols_fr = NULL;
+
+static const int num_switchers_symbols_fr = 3;
+
+static const int switcher_idxs_symbols_fr[] = { \
+    20, 29, 33 \
+};
+
+static const int switcher_dests_symbols_fr[] = { \
+    2, 0, 4 \
+};
+
+/* Layer: Special characters - generated from eschars */
+
+static const int num_keys_special_fr = 35;
+
+static const char * const keycaps_special_fr[] = { \
+    "à", "â", "ç", "é", "è", "ê", "î", "ô", "ù", "û", "\n", \
+    "À", "Â", "Ç", "É", "È", "Ê", "Î", "Ô", "Ù", "Û", "\n", \
+    "123", "æ", "œ", "ä", "ë", "ï", "ö", "ü", LV_SYMBOL_BACKSPACE, "\n", \
+    "abc", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, "âÂ", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_special_fr[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, SQ2LV_CTRL_MOD_ACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_special_fr = 0;
+
+static const int * const modifier_idxs_special_fr = NULL;
+
+static const int num_switchers_special_fr = 3;
+
+static const int switcher_idxs_special_fr[] = { \
+    20, 29, 33 \
+};
+
+static const int switcher_dests_special_fr[] = { \
+    2, 0, 0 \
+};
+
+/* Layer array */
+
+static const int num_layers_fr = 5;
+
+static const sq2lv_layer_t layers_fr[] = {
+    {
+        .num_keys = num_keys_lower_fr,
+        .keycaps = keycaps_lower_fr,
+        .attributes = attributes_lower_fr,
+        .num_modifiers = num_modifiers_lower_fr,
+        .modifier_idxs = modifier_idxs_lower_fr,
+        .num_switchers = num_switchers_lower_fr,
+        .switcher_idxs = switcher_idxs_lower_fr,
+        .switcher_dests = switcher_dests_lower_fr
+    },
+    {
+        .num_keys = num_keys_upper_fr,
+        .keycaps = keycaps_upper_fr,
+        .attributes = attributes_upper_fr,
+        .num_modifiers = num_modifiers_upper_fr,
+        .modifier_idxs = modifier_idxs_upper_fr,
+        .num_switchers = num_switchers_upper_fr,
+        .switcher_idxs = switcher_idxs_upper_fr,
+        .switcher_dests = switcher_dests_upper_fr
+    },
+    {
+        .num_keys = num_keys_numbers_fr,
+        .keycaps = keycaps_numbers_fr,
+        .attributes = attributes_numbers_fr,
+        .num_modifiers = num_modifiers_numbers_fr,
+        .modifier_idxs = modifier_idxs_numbers_fr,
+        .num_switchers = num_switchers_numbers_fr,
+        .switcher_idxs = switcher_idxs_numbers_fr,
+        .switcher_dests = switcher_dests_numbers_fr
+    },
+    {
+        .num_keys = num_keys_symbols_fr,
+        .keycaps = keycaps_symbols_fr,
+        .attributes = attributes_symbols_fr,
+        .num_modifiers = num_modifiers_symbols_fr,
+        .modifier_idxs = modifier_idxs_symbols_fr,
+        .num_switchers = num_switchers_symbols_fr,
+        .switcher_idxs = switcher_idxs_symbols_fr,
+        .switcher_dests = switcher_dests_symbols_fr
+    },
+    {
+        .num_keys = num_keys_special_fr,
+        .keycaps = keycaps_special_fr,
+        .attributes = attributes_special_fr,
+        .num_modifiers = num_modifiers_special_fr,
+        .modifier_idxs = modifier_idxs_special_fr,
+        .num_switchers = num_switchers_special_fr,
+        .switcher_idxs = switcher_idxs_special_fr,
+        .switcher_dests = switcher_dests_special_fr
+    }
+};
+
+/**
+ * Layout: US English - generated from us
+ **/
+
+static const char * const name_us = "US English";
+static const char * const short_name_us = "us";
+
+/* Layer: Lowercase letters - generated from base */
+
+static const int num_keys_lower_us = 34;
+
+static const char * const keycaps_lower_us[] = { \
+    "q", "w", "e", "r", "t", "y", "u", "i", "o", "p", "\n", \
+    "a", "s", "d", "f", "g", "h", "j", "k", "l", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "z", "x", "c", "v", "b", "n", "m", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_lower_us[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_lower_us = 0;
+
+static const int * const modifier_idxs_lower_us = NULL;
+
+static const int num_switchers_lower_us = 2;
+
+static const int switcher_idxs_lower_us[] = { \
+    19, 28 \
+};
+
+static const int switcher_dests_lower_us[] = { \
+    1, 2 \
+};
+
+/* Layer: Uppercase letters - generated from upper */
+
+static const int num_keys_upper_us = 34;
+
+static const char * const keycaps_upper_us[] = { \
+    "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "\n", \
+    "A", "S", "D", "F", "G", "H", "J", "K", "L", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "Z", "X", "C", "V", "B", "N", "M", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_upper_us[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_ACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_upper_us = 0;
+
+static const int * const modifier_idxs_upper_us = NULL;
+
+static const int num_switchers_upper_us = 2;
+
+static const int switcher_idxs_upper_us[] = { \
+    19, 28 \
+};
+
+static const int switcher_dests_upper_us[] = { \
+    0, 2 \
+};
+
+/* Layer: Numbers / symbols - generated from numbers */
+
+static const int num_keys_numbers_us = 35;
+
+static const char * const keycaps_numbers_us[] = { \
+    "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "\n", \
+    "@", "#", "$", "%", "&", "-", "_", "+", "(", ")", "\n", \
+    "*/=", ",", "\"", "'", ":", ";", "!", "?", LV_SYMBOL_BACKSPACE, "\n", \
+    "ABC", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_numbers_us[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_numbers_us = 0;
+
+static const int * const modifier_idxs_numbers_us = NULL;
+
+static const int num_switchers_numbers_us = 2;
+
+static const int switcher_idxs_numbers_us[] = { \
+    20, 29 \
+};
+
+static const int switcher_dests_numbers_us[] = { \
+    3, 0 \
+};
+
+/* Layer: Symbols - generated from symbols */
+
+static const int num_keys_symbols_us = 35;
+
+static const char * const keycaps_symbols_us[] = { \
+    "~", "`", "|", "·", "√", "π", "τ", "÷", "×", "¶", "\n", \
+    "©", "®", "£", "€", "¥", "^", "°", "*", "{", "}", "\n", \
+    "123", "\\", "/", "<", ">", "=", "[", "]", LV_SYMBOL_BACKSPACE, "\n", \
+    "ABC", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_symbols_us[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_symbols_us = 0;
+
+static const int * const modifier_idxs_symbols_us = NULL;
+
+static const int num_switchers_symbols_us = 2;
+
+static const int switcher_idxs_symbols_us[] = { \
+    20, 29 \
+};
+
+static const int switcher_dests_symbols_us[] = { \
+    2, 0 \
+};
+
+/* Layer array */
+
+static const int num_layers_us = 4;
+
+static const sq2lv_layer_t layers_us[] = {
+    {
+        .num_keys = num_keys_lower_us,
+        .keycaps = keycaps_lower_us,
+        .attributes = attributes_lower_us,
+        .num_modifiers = num_modifiers_lower_us,
+        .modifier_idxs = modifier_idxs_lower_us,
+        .num_switchers = num_switchers_lower_us,
+        .switcher_idxs = switcher_idxs_lower_us,
+        .switcher_dests = switcher_dests_lower_us
+    },
+    {
+        .num_keys = num_keys_upper_us,
+        .keycaps = keycaps_upper_us,
+        .attributes = attributes_upper_us,
+        .num_modifiers = num_modifiers_upper_us,
+        .modifier_idxs = modifier_idxs_upper_us,
+        .num_switchers = num_switchers_upper_us,
+        .switcher_idxs = switcher_idxs_upper_us,
+        .switcher_dests = switcher_dests_upper_us
+    },
+    {
+        .num_keys = num_keys_numbers_us,
+        .keycaps = keycaps_numbers_us,
+        .attributes = attributes_numbers_us,
+        .num_modifiers = num_modifiers_numbers_us,
+        .modifier_idxs = modifier_idxs_numbers_us,
+        .num_switchers = num_switchers_numbers_us,
+        .switcher_idxs = switcher_idxs_numbers_us,
+        .switcher_dests = switcher_dests_numbers_us
+    },
+    {
+        .num_keys = num_keys_symbols_us,
+        .keycaps = keycaps_symbols_us,
+        .attributes = attributes_symbols_us,
+        .num_modifiers = num_modifiers_symbols_us,
+        .modifier_idxs = modifier_idxs_symbols_us,
+        .num_switchers = num_switchers_symbols_us,
+        .switcher_idxs = switcher_idxs_symbols_us,
+        .switcher_dests = switcher_dests_symbols_us
+    }
+};
+
+/**
+ * Public interface
+ **/
+
+const int sq2lv_num_layouts = 3;
+
+const sq2lv_layout_t sq2lv_layouts[] = {
+    /* Spanish */
+    {
+        .name = name_es,
+        .short_name = short_name_es,
+        .num_layers = num_layers_es,
+        .layers = layers_es
+    },
+    /* French */
+    {
+        .name = name_fr,
+        .short_name = short_name_fr,
+        .num_layers = num_layers_fr,
+        .layers = layers_fr
+    },
+    /* US English */
+    {
+        .name = name_us,
+        .short_name = short_name_us,
+        .num_layers = num_layers_us,
+        .layers = layers_us
+    }
+};
+
+const char * const sq2lv_layout_names =
+    "Spanish" "\n"
+    "French" "\n"
+    "US English";
+
+const char * const sq2lv_layout_short_names =
+    "es" "\n"
+    "fr" "\n"
+    "us";

examples/es+fr+us/sq2lv_layouts.h

@@ -0,0 +1,65 @@
+/**
+ * Auto-generated with squeek2lvgl
+ **/
+
+#ifndef SQ2LV_LAYOUTS_H
+#define SQ2LV_LAYOUTS_H
+
+#include "lvgl/lvgl.h"
+
+#define SQ2LV_SCANCODES_ENABLED 0
+
+/* Key attributes */
+#define SQ2LV_CTRL_NON_CHAR     (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKED)
+#define SQ2LV_CTRL_MOD_ACTIVE   (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE)
+#define SQ2LV_CTRL_MOD_INACTIVE (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE | LV_BTNMATRIX_CTRL_CHECKED)
+
+/* Layout IDs, values can be used as indexes into the sq2lv_layouts array */
+typedef enum {
+    SQ2LV_LAYOUT_NONE = -1,
+    SQ2LV_LAYOUT_ES = 0,
+    SQ2LV_LAYOUT_FR = 1,
+    SQ2LV_LAYOUT_US = 2
+} sq2lv_layout_id_t;
+
+/* Layer type */
+typedef struct {
+    /* Number of keys */
+    const int num_keys;
+    /* Key caps */
+    const char * const * const keycaps;
+    /* Key attributes */
+    const lv_btnmatrix_ctrl_t * const attributes;
+    /* Number of modifier keys */
+    const int num_modifiers;
+    /* Button indexes of modifier keys */
+    const int * const modifier_idxs;
+    /* Number of buttons that trigger a layer switch */
+    const int num_switchers;
+    /* Button indexes that trigger a layer switch */
+    const int * const switcher_idxs;
+    /* Indexes of layers to jump to when triggering layer switch buttons */
+    const int * const switcher_dests;
+} sq2lv_layer_t;
+
+/* Layout type */
+typedef struct {
+    /* Layout name */
+    const char * const name;
+    /* Layout short name */
+    const char * const short_name;
+    /* Total number of layers */
+    const int num_layers;
+    /* Layers array */
+    const sq2lv_layer_t * const layers;
+} sq2lv_layout_t;
+
+/* Layouts */
+extern const int sq2lv_num_layouts;
+extern const sq2lv_layout_t sq2lv_layouts[];
+
+/* Layout names (suitable for use in lv_dropdown_t) */
+extern const char * const sq2lv_layout_names;
+extern const char * const sq2lv_layout_short_names;
+
+#endif /* SQ2LV_LAYOUTS_H */

examples/us-terminal-with-scancodes/sq2lv_layouts.c

@@ -0,0 +1,437 @@
+/**
+ * Auto-generated with squeek2lvgl
+ **/
+
+#include "sq2lv_layouts.h"
+#include <linux/input.h>
+
+#define SQ2LV_SYMBOL_SHIFT "Shift"
+
+/**
+ * Layout: US English (Terminal) - generated from terminal/us
+ **/
+
+static const char * const name_terminal_us = "US English (Terminal)";
+static const char * const short_name_terminal_us = "terminal/us";
+
+/* Layer: Lowercase letters - generated from base */
+
+static const int num_keys_lower_terminal_us = 38;
+
+static const char * const keycaps_lower_terminal_us[] = { \
+    "Ctrl", "Alt", LV_SYMBOL_UP, LV_SYMBOL_DOWN, LV_SYMBOL_LEFT, LV_SYMBOL_RIGHT, "\n", \
+    "q", "w", "e", "r", "t", "y", "u", "i", "o", "p", "\n", \
+    "a", "s", "d", "f", "g", "h", "j", "k", "l", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "z", "x", "c", "v", "b", "n", "m", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", " ", ">_", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_lower_terminal_us[] = { \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, 7, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_lower_terminal_us = 2;
+
+static const int modifier_idxs_lower_terminal_us[] = { \
+    0, 1 \
+};
+
+static const int num_switchers_lower_terminal_us = 3;
+
+static const int switcher_idxs_lower_terminal_us[] = { \
+    25, 34, 36 \
+};
+
+static const int switcher_dests_lower_terminal_us[] = { \
+    1, 2, 4 \
+};
+
+static const int num_scancodes_lower_terminal_us = 5;
+
+static const int scancodes_lower_terminal_us[] = { \
+    KEY_LEFTCTRL, KEY_LEFTALT, KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, \
+    KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_U, KEY_I, KEY_O, KEY_P, \
+    KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_J, KEY_K, KEY_L, \
+    KEY_Z, KEY_X, KEY_C, KEY_V, KEY_B, KEY_N, KEY_M, KEY_BACKSPACE, \
+    KEY_SPACE, KEY_ENTER \
+};
+
+static const int scancode_idxs_lower_terminal_us[] = { \
+    0, 1, 2, 3, 4, 5, \
+    6, 7, 8, 9, 10, 11, 12, 13, 14, 15, \
+    16, 17, 18, 19, 20, 21, 22, 23, 24, \
+    -1, 25, 26, 27, 28, 29, 30, 31, 32, \
+    -1, 33, -1, 34 \
+};
+
+static const int scancode_nums_lower_terminal_us[] = { \
+    1, 1, 1, 1, 1, 1, \
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \
+    1, 1, 1, 1, 1, 1, 1, 1, 1, \
+    0, 1, 1, 1, 1, 1, 1, 1, 1, \
+    0, 1, 0, 1 \
+};
+
+/* Layer: Uppercase letters - generated from upper */
+
+static const int num_keys_upper_terminal_us = 38;
+
+static const char * const keycaps_upper_terminal_us[] = { \
+    "Ctrl", "Alt", "PgUp", "PgDn", "Home", "End", "\n", \
+    "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "\n", \
+    "A", "S", "D", "F", "G", "H", "J", "K", "L", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "Z", "X", "C", "V", "B", "N", "M", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", " ", ">_", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_upper_terminal_us[] = { \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_ACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, 7, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_upper_terminal_us = 2;
+
+static const int modifier_idxs_upper_terminal_us[] = { \
+    0, 1 \
+};
+
+static const int num_switchers_upper_terminal_us = 3;
+
+static const int switcher_idxs_upper_terminal_us[] = { \
+    25, 34, 36 \
+};
+
+static const int switcher_dests_upper_terminal_us[] = { \
+    0, 2, 4 \
+};
+
+static const int num_scancodes_upper_terminal_us = 5;
+
+static const int scancodes_upper_terminal_us[] = { \
+    KEY_LEFTCTRL, KEY_LEFTALT, KEY_PAGEUP, KEY_PAGEDOWN, KEY_HOME, KEY_END, \
+    KEY_LEFTSHIFT, KEY_Q, KEY_LEFTSHIFT, KEY_W, KEY_LEFTSHIFT, KEY_E, KEY_LEFTSHIFT, KEY_R, KEY_LEFTSHIFT, KEY_T, KEY_LEFTSHIFT, KEY_Y, KEY_LEFTSHIFT, KEY_U, KEY_LEFTSHIFT, KEY_I, KEY_LEFTSHIFT, KEY_O, KEY_LEFTSHIFT, KEY_P, \
+    KEY_LEFTSHIFT, KEY_A, KEY_LEFTSHIFT, KEY_S, KEY_LEFTSHIFT, KEY_D, KEY_LEFTSHIFT, KEY_F, KEY_LEFTSHIFT, KEY_G, KEY_LEFTSHIFT, KEY_H, KEY_LEFTSHIFT, KEY_J, KEY_LEFTSHIFT, KEY_K, KEY_LEFTSHIFT, KEY_L, \
+    KEY_LEFTSHIFT, KEY_Z, KEY_LEFTSHIFT, KEY_X, KEY_LEFTSHIFT, KEY_C, KEY_LEFTSHIFT, KEY_V, KEY_LEFTSHIFT, KEY_B, KEY_LEFTSHIFT, KEY_N, KEY_LEFTSHIFT, KEY_M, KEY_BACKSPACE, \
+    KEY_SPACE, KEY_ENTER \
+};
+
+static const int scancode_idxs_upper_terminal_us[] = { \
+    0, 1, 2, 3, 4, 5, \
+    6, 8, 10, 12, 14, 16, 18, 20, 22, 24, \
+    26, 28, 30, 32, 34, 36, 38, 40, 42, \
+    -1, 44, 46, 48, 50, 52, 54, 56, 58, \
+    -1, 59, -1, 60 \
+};
+
+static const int scancode_nums_upper_terminal_us[] = { \
+    1, 1, 1, 1, 1, 1, \
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, \
+    2, 2, 2, 2, 2, 2, 2, 2, 2, \
+    0, 2, 2, 2, 2, 2, 2, 2, 1, \
+    0, 1, 0, 1 \
+};
+
+/* Layer: Numbers / symbols - generated from numbers */
+
+static const int num_keys_numbers_terminal_us = 39;
+
+static const char * const keycaps_numbers_terminal_us[] = { \
+    "Ctrl", "Alt", LV_SYMBOL_UP, LV_SYMBOL_DOWN, LV_SYMBOL_LEFT, LV_SYMBOL_RIGHT, "\n", \
+    "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "\n", \
+    "*", "#", "$", "/", "&", "-", "_", "+", "(", ")", "\n", \
+    "τ=\\", ",", "\"", "'", ":", ";", "!", "?", LV_SYMBOL_BACKSPACE, "\n", \
+    "ABC", " ", ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_numbers_terminal_us[] = { \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, 7, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_numbers_terminal_us = 2;
+
+static const int modifier_idxs_numbers_terminal_us[] = { \
+    0, 1 \
+};
+
+static const int num_switchers_numbers_terminal_us = 2;
+
+static const int switcher_idxs_numbers_terminal_us[] = { \
+    26, 35 \
+};
+
+static const int switcher_dests_numbers_terminal_us[] = { \
+    3, 0 \
+};
+
+static const int num_scancodes_numbers_terminal_us = 5;
+
+static const int scancodes_numbers_terminal_us[] = { \
+    KEY_LEFTCTRL, KEY_LEFTALT, KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, \
+    KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0, \
+    KEY_LEFTSHIFT, KEY_8, KEY_LEFTSHIFT, KEY_3, KEY_LEFTSHIFT, KEY_4, KEY_SLASH, KEY_LEFTSHIFT, KEY_7, KEY_MINUS, KEY_LEFTSHIFT, KEY_MINUS, KEY_LEFTSHIFT, KEY_EQUAL, KEY_LEFTSHIFT, KEY_9, KEY_LEFTSHIFT, KEY_0, \
+    KEY_COMMA, KEY_LEFTSHIFT, KEY_APOSTROPHE, KEY_APOSTROPHE, KEY_LEFTSHIFT, KEY_SEMICOLON, KEY_SEMICOLON, KEY_LEFTSHIFT, KEY_1, KEY_LEFTSHIFT, KEY_SLASH, KEY_BACKSPACE, \
+    KEY_SPACE, KEY_DOT, KEY_ENTER \
+};
+
+static const int scancode_idxs_numbers_terminal_us[] = { \
+    0, 1, 2, 3, 4, 5, \
+    6, 7, 8, 9, 10, 11, 12, 13, 14, 15, \
+    16, 18, 20, 22, 23, 25, 26, 28, 30, 32, \
+    -1, 34, 35, 37, 38, 40, 41, 43, 45, \
+    -1, 46, 47, 48 \
+};
+
+static const int scancode_nums_numbers_terminal_us[] = { \
+    1, 1, 1, 1, 1, 1, \
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \
+    2, 2, 2, 1, 2, 1, 2, 2, 2, 2, \
+    0, 1, 2, 1, 2, 1, 2, 2, 1, \
+    0, 1, 1, 1 \
+};
+
+/* Layer: Symbols - generated from symbols */
+
+static const int num_keys_symbols_terminal_us = 39;
+
+static const char * const keycaps_symbols_terminal_us[] = { \
+    "Ctrl", "Alt", LV_SYMBOL_UP, LV_SYMBOL_DOWN, LV_SYMBOL_LEFT, LV_SYMBOL_RIGHT, "\n", \
+    "~", "`", "|", "·", "√", "π", "τ", "÷", "×", "¶", "\n", \
+    "©", "®", "£", "€", "¥", "^", "°", "@", "{", "}", "\n", \
+    "123", "\\", "%", "<", ">", "=", "[", "]", LV_SYMBOL_BACKSPACE, "\n", \
+    "ABC", " ", ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_symbols_terminal_us[] = { \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, 7, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_symbols_terminal_us = 2;
+
+static const int modifier_idxs_symbols_terminal_us[] = { \
+    0, 1 \
+};
+
+static const int num_switchers_symbols_terminal_us = 2;
+
+static const int switcher_idxs_symbols_terminal_us[] = { \
+    26, 35 \
+};
+
+static const int switcher_dests_symbols_terminal_us[] = { \
+    2, 0 \
+};
+
+static const int num_scancodes_symbols_terminal_us = 5;
+
+static const int scancodes_symbols_terminal_us[] = { \
+    KEY_LEFTCTRL, KEY_LEFTALT, KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, \
+    KEY_LEFTSHIFT, KEY_GRAVE, KEY_GRAVE, KEY_LEFTSHIFT, KEY_BACKSLASH, \
+    KEY_LEFTSHIFT, KEY_6, KEY_LEFTSHIFT, KEY_2, KEY_LEFTSHIFT, KEY_LEFTBRACE, KEY_LEFTSHIFT, KEY_RIGHTBRACE, \
+    KEY_BACKSLASH, KEY_LEFTSHIFT, KEY_5, KEY_LEFTSHIFT, KEY_COMMA, KEY_LEFTSHIFT, KEY_DOT, KEY_EQUAL, KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSPACE, \
+    KEY_SPACE, KEY_DOT, KEY_ENTER \
+};
+
+static const int scancode_idxs_symbols_terminal_us[] = { \
+    0, 1, 2, 3, 4, 5, \
+    6, 8, 9, -1, -1, -1, -1, -1, -1, -1, \
+    -1, -1, -1, -1, -1, 11, -1, 13, 15, 17, \
+    -1, 19, 20, 22, 24, 26, 27, 28, 29, \
+    -1, 30, 31, 32 \
+};
+
+static const int scancode_nums_symbols_terminal_us[] = { \
+    1, 1, 1, 1, 1, 1, \
+    2, 1, 2, 0, 0, 0, 0, 0, 0, 0, \
+    0, 0, 0, 0, 0, 2, 0, 2, 2, 2, \
+    0, 1, 2, 2, 2, 1, 1, 1, 1, \
+    0, 1, 1, 1 \
+};
+
+/* Layer: Actions - generated from actions */
+
+static const int num_keys_actions_terminal_us = 30;
+
+static const char * const keycaps_actions_terminal_us[] = { \
+    "Ctrl", "Alt", "PgUp", "PgDn", "Home", "End", "\n", \
+    "F1", "F2", "F3", "F4", "F5", "F6", "\n", \
+    "F7", "F8", "F9", "F10", "F11", "F12", "\n", \
+    "Esc", "Tab", "Pause", "Insert", LV_SYMBOL_UP, "Del", "\n", \
+    "ABC", "Menu", "Break", LV_SYMBOL_LEFT, LV_SYMBOL_DOWN, LV_SYMBOL_RIGHT, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_actions_terminal_us[] = { \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_actions_terminal_us = 2;
+
+static const int modifier_idxs_actions_terminal_us[] = { \
+    0, 1 \
+};
+
+static const int num_switchers_actions_terminal_us = 1;
+
+static const int switcher_idxs_actions_terminal_us[] = { \
+    24 \
+};
+
+static const int switcher_dests_actions_terminal_us[] = { \
+    0 \
+};
+
+static const int num_scancodes_actions_terminal_us = 5;
+
+static const int scancodes_actions_terminal_us[] = { \
+    KEY_LEFTCTRL, KEY_LEFTALT, KEY_PAGEUP, KEY_PAGEDOWN, KEY_HOME, KEY_END, \
+    KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, \
+    KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, \
+    KEY_ESC, KEY_TAB, KEY_PAUSE, KEY_INSERT, KEY_UP, KEY_DELETE, \
+    KEY_COMPOSE, KEY_BREAK, KEY_LEFT, KEY_DOWN, KEY_RIGHT \
+};
+
+static const int scancode_idxs_actions_terminal_us[] = { \
+    0, 1, 2, 3, 4, 5, \
+    6, 7, 8, 9, 10, 11, \
+    12, 13, 14, 15, 16, 17, \
+    18, 19, 20, 21, 22, 23, \
+    -1, 24, 25, 26, 27, 28 \
+};
+
+static const int scancode_nums_actions_terminal_us[] = { \
+    1, 1, 1, 1, 1, 1, \
+    1, 1, 1, 1, 1, 1, \
+    1, 1, 1, 1, 1, 1, \
+    1, 1, 1, 1, 1, 1, \
+    0, 1, 1, 1, 1, 1 \
+};
+
+/* Layer array */
+
+static const int num_layers_terminal_us = 5;
+
+static const sq2lv_layer_t layers_terminal_us[] = {
+    {
+        .num_keys = num_keys_lower_terminal_us,
+        .keycaps = keycaps_lower_terminal_us,
+        .attributes = attributes_lower_terminal_us,
+        .num_modifiers = num_modifiers_lower_terminal_us,
+        .modifier_idxs = modifier_idxs_lower_terminal_us,
+        .num_switchers = num_switchers_lower_terminal_us,
+        .switcher_idxs = switcher_idxs_lower_terminal_us,
+        .switcher_dests = switcher_dests_lower_terminal_us,
+        .num_scancodes = num_scancodes_lower_terminal_us,
+        .scancodes = scancodes_lower_terminal_us,
+        .scancode_idxs = scancode_idxs_lower_terminal_us,
+        .scancode_nums = scancode_nums_lower_terminal_us
+    },
+    {
+        .num_keys = num_keys_upper_terminal_us,
+        .keycaps = keycaps_upper_terminal_us,
+        .attributes = attributes_upper_terminal_us,
+        .num_modifiers = num_modifiers_upper_terminal_us,
+        .modifier_idxs = modifier_idxs_upper_terminal_us,
+        .num_switchers = num_switchers_upper_terminal_us,
+        .switcher_idxs = switcher_idxs_upper_terminal_us,
+        .switcher_dests = switcher_dests_upper_terminal_us,
+        .num_scancodes = num_scancodes_upper_terminal_us,
+        .scancodes = scancodes_upper_terminal_us,
+        .scancode_idxs = scancode_idxs_upper_terminal_us,
+        .scancode_nums = scancode_nums_upper_terminal_us
+    },
+    {
+        .num_keys = num_keys_numbers_terminal_us,
+        .keycaps = keycaps_numbers_terminal_us,
+        .attributes = attributes_numbers_terminal_us,
+        .num_modifiers = num_modifiers_numbers_terminal_us,
+        .modifier_idxs = modifier_idxs_numbers_terminal_us,
+        .num_switchers = num_switchers_numbers_terminal_us,
+        .switcher_idxs = switcher_idxs_numbers_terminal_us,
+        .switcher_dests = switcher_dests_numbers_terminal_us,
+        .num_scancodes = num_scancodes_numbers_terminal_us,
+        .scancodes = scancodes_numbers_terminal_us,
+        .scancode_idxs = scancode_idxs_numbers_terminal_us,
+        .scancode_nums = scancode_nums_numbers_terminal_us
+    },
+    {
+        .num_keys = num_keys_symbols_terminal_us,
+        .keycaps = keycaps_symbols_terminal_us,
+        .attributes = attributes_symbols_terminal_us,
+        .num_modifiers = num_modifiers_symbols_terminal_us,
+        .modifier_idxs = modifier_idxs_symbols_terminal_us,
+        .num_switchers = num_switchers_symbols_terminal_us,
+        .switcher_idxs = switcher_idxs_symbols_terminal_us,
+        .switcher_dests = switcher_dests_symbols_terminal_us,
+        .num_scancodes = num_scancodes_symbols_terminal_us,
+        .scancodes = scancodes_symbols_terminal_us,
+        .scancode_idxs = scancode_idxs_symbols_terminal_us,
+        .scancode_nums = scancode_nums_symbols_terminal_us
+    },
+    {
+        .num_keys = num_keys_actions_terminal_us,
+        .keycaps = keycaps_actions_terminal_us,
+        .attributes = attributes_actions_terminal_us,
+        .num_modifiers = num_modifiers_actions_terminal_us,
+        .modifier_idxs = modifier_idxs_actions_terminal_us,
+        .num_switchers = num_switchers_actions_terminal_us,
+        .switcher_idxs = switcher_idxs_actions_terminal_us,
+        .switcher_dests = switcher_dests_actions_terminal_us,
+        .num_scancodes = num_scancodes_actions_terminal_us,
+        .scancodes = scancodes_actions_terminal_us,
+        .scancode_idxs = scancode_idxs_actions_terminal_us,
+        .scancode_nums = scancode_nums_actions_terminal_us
+    }
+};
+
+/**
+ * Public interface
+ **/
+
+const int sq2lv_num_layouts = 1;
+
+const sq2lv_layout_t sq2lv_layouts[] = {
+    /* US English (Terminal) */
+    {
+        .name = name_terminal_us,
+        .short_name = short_name_terminal_us,
+        .num_layers = num_layers_terminal_us,
+        .layers = layers_terminal_us
+    }
+};
+
+const char * const sq2lv_layout_names =
+    "US English (Terminal)";
+
+const char * const sq2lv_layout_short_names =
+    "terminal/us";
+
+const int sq2lv_num_unique_scancodes = 80;
+
+const int sq2lv_unique_scancodes[] = {
+    KEY_LEFTCTRL, KEY_LEFTALT, KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_Q, KEY_W, KEY_E, KEY_R,
+    KEY_T, KEY_Y, KEY_U, KEY_I, KEY_O, KEY_P, KEY_A, KEY_S, KEY_D, KEY_F,
+    KEY_G, KEY_H, KEY_J, KEY_K, KEY_L, KEY_Z, KEY_X, KEY_C, KEY_V, KEY_B,
+    KEY_N, KEY_M, KEY_BACKSPACE, KEY_SPACE, KEY_ENTER, KEY_PAGEUP, KEY_PAGEDOWN, KEY_HOME, KEY_END, KEY_LEFTSHIFT,
+    KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0,
+    KEY_SLASH, KEY_MINUS, KEY_EQUAL, KEY_COMMA, KEY_APOSTROPHE, KEY_SEMICOLON, KEY_DOT, KEY_GRAVE, KEY_BACKSLASH, KEY_LEFTBRACE,
+    KEY_RIGHTBRACE, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8, KEY_F9,
+    KEY_F10, KEY_F11, KEY_F12, KEY_ESC, KEY_TAB, KEY_PAUSE, KEY_INSERT, KEY_DELETE, KEY_COMPOSE, KEY_BREAK
+};

examples/us-terminal-with-scancodes/sq2lv_layouts.h

@@ -0,0 +1,75 @@
+/**
+ * Auto-generated with squeek2lvgl
+ **/
+
+#ifndef SQ2LV_LAYOUTS_H
+#define SQ2LV_LAYOUTS_H
+
+#include "lvgl/lvgl.h"
+
+#define SQ2LV_SCANCODES_ENABLED 1
+
+/* Key attributes */
+#define SQ2LV_CTRL_NON_CHAR     (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKED)
+#define SQ2LV_CTRL_MOD_ACTIVE   (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE)
+#define SQ2LV_CTRL_MOD_INACTIVE (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE | LV_BTNMATRIX_CTRL_CHECKED)
+
+/* Layout IDs, values can be used as indexes into the sq2lv_layouts array */
+typedef enum {
+    SQ2LV_LAYOUT_NONE = -1,
+    SQ2LV_LAYOUT_TERMINAL_US = 0
+} sq2lv_layout_id_t;
+
+/* Layer type */
+typedef struct {
+    /* Number of keys */
+    const int num_keys;
+    /* Key caps */
+    const char * const * const keycaps;
+    /* Key attributes */
+    const lv_btnmatrix_ctrl_t * const attributes;
+    /* Number of modifier keys */
+    const int num_modifiers;
+    /* Button indexes of modifier keys */
+    const int * const modifier_idxs;
+    /* Number of buttons that trigger a layer switch */
+    const int num_switchers;
+    /* Button indexes that trigger a layer switch */
+    const int * const switcher_idxs;
+    /* Indexes of layers to jump to when triggering layer switch buttons */
+    const int * const switcher_dests;
+    /* Total number of scancodes */
+    const int num_scancodes;
+    /* Flat array of scancodes */
+    const int * const scancodes;
+    /* Start index in scancodes array for key cap */
+    const int * const scancode_idxs;
+    /* Number of scancodes for key cap */
+    const int * const scancode_nums;
+} sq2lv_layer_t;
+
+/* Layout type */
+typedef struct {
+    /* Layout name */
+    const char * const name;
+    /* Layout short name */
+    const char * const short_name;
+    /* Total number of layers */
+    const int num_layers;
+    /* Layers array */
+    const sq2lv_layer_t * const layers;
+} sq2lv_layout_t;
+
+/* Layouts */
+extern const int sq2lv_num_layouts;
+extern const sq2lv_layout_t sq2lv_layouts[];
+
+/* Layout names (suitable for use in lv_dropdown_t) */
+extern const char * const sq2lv_layout_names;
+extern const char * const sq2lv_layout_short_names;
+
+/* Unique scancodes from all layout (suitable for setting up uinput devices) */
+extern const int sq2lv_num_unique_scancodes;
+extern const int sq2lv_unique_scancodes[];
+
+#endif /* SQ2LV_LAYOUTS_H */

examples/us/sq2lv_layouts.c

@@ -0,0 +1,211 @@
+/**
+ * Auto-generated with squeek2lvgl
+ **/
+
+#include "sq2lv_layouts.h"
+
+#define SQ2LV_SYMBOL_SHIFT "Shift"
+
+/**
+ * Layout: US English - generated from us
+ **/
+
+static const char * const name_us = "US English";
+static const char * const short_name_us = "us";
+
+/* Layer: Lowercase letters - generated from base */
+
+static const int num_keys_lower_us = 34;
+
+static const char * const keycaps_lower_us[] = { \
+    "q", "w", "e", "r", "t", "y", "u", "i", "o", "p", "\n", \
+    "a", "s", "d", "f", "g", "h", "j", "k", "l", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "z", "x", "c", "v", "b", "n", "m", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_lower_us[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_INACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_lower_us = 0;
+
+static const int * const modifier_idxs_lower_us = NULL;
+
+static const int num_switchers_lower_us = 2;
+
+static const int switcher_idxs_lower_us[] = { \
+    19, 28 \
+};
+
+static const int switcher_dests_lower_us[] = { \
+    1, 2 \
+};
+
+/* Layer: Uppercase letters - generated from upper */
+
+static const int num_keys_upper_us = 34;
+
+static const char * const keycaps_upper_us[] = { \
+    "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "\n", \
+    "A", "S", "D", "F", "G", "H", "J", "K", "L", "\n", \
+    SQ2LV_SYMBOL_SHIFT, "Z", "X", "C", "V", "B", "N", "M", LV_SYMBOL_BACKSPACE, "\n", \
+    "123", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_upper_us[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_MOD_ACTIVE | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_upper_us = 0;
+
+static const int * const modifier_idxs_upper_us = NULL;
+
+static const int num_switchers_upper_us = 2;
+
+static const int switcher_idxs_upper_us[] = { \
+    19, 28 \
+};
+
+static const int switcher_dests_upper_us[] = { \
+    0, 2 \
+};
+
+/* Layer: Numbers / symbols - generated from numbers */
+
+static const int num_keys_numbers_us = 35;
+
+static const char * const keycaps_numbers_us[] = { \
+    "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "\n", \
+    "@", "#", "$", "%", "&", "-", "_", "+", "(", ")", "\n", \
+    "*/=", ",", "\"", "'", ":", ";", "!", "?", LV_SYMBOL_BACKSPACE, "\n", \
+    "ABC", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_numbers_us[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_numbers_us = 0;
+
+static const int * const modifier_idxs_numbers_us = NULL;
+
+static const int num_switchers_numbers_us = 2;
+
+static const int switcher_idxs_numbers_us[] = { \
+    20, 29 \
+};
+
+static const int switcher_dests_numbers_us[] = { \
+    3, 0 \
+};
+
+/* Layer: Symbols - generated from symbols */
+
+static const int num_keys_symbols_us = 35;
+
+static const char * const keycaps_symbols_us[] = { \
+    "~", "`", "|", "·", "√", "π", "τ", "÷", "×", "¶", "\n", \
+    "©", "®", "£", "€", "¥", "^", "°", "*", "{", "}", "\n", \
+    "123", "\\", "/", "<", ">", "=", "[", "]", LV_SYMBOL_BACKSPACE, "\n", \
+    "ABC", LV_SYMBOL_LEFT, " ", LV_SYMBOL_RIGHT, ".", LV_SYMBOL_OK, "" \
+};
+
+static const lv_btnmatrix_ctrl_t attributes_symbols_us[] = { \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3, \
+    SQ2LV_CTRL_NON_CHAR | LV_BTNMATRIX_CTRL_NO_REPEAT | 3, SQ2LV_CTRL_NON_CHAR | 2, 7, SQ2LV_CTRL_NON_CHAR | 2, LV_BTNMATRIX_CTRL_POPOVER | LV_BTNMATRIX_CTRL_NO_REPEAT | 2, SQ2LV_CTRL_NON_CHAR | 3 \
+};
+
+static const int num_modifiers_symbols_us = 0;
+
+static const int * const modifier_idxs_symbols_us = NULL;
+
+static const int num_switchers_symbols_us = 2;
+
+static const int switcher_idxs_symbols_us[] = { \
+    20, 29 \
+};
+
+static const int switcher_dests_symbols_us[] = { \
+    2, 0 \
+};
+
+/* Layer array */
+
+static const int num_layers_us = 4;
+
+static const sq2lv_layer_t layers_us[] = {
+    {
+        .num_keys = num_keys_lower_us,
+        .keycaps = keycaps_lower_us,
+        .attributes = attributes_lower_us,
+        .num_modifiers = num_modifiers_lower_us,
+        .modifier_idxs = modifier_idxs_lower_us,
+        .num_switchers = num_switchers_lower_us,
+        .switcher_idxs = switcher_idxs_lower_us,
+        .switcher_dests = switcher_dests_lower_us
+    },
+    {
+        .num_keys = num_keys_upper_us,
+        .keycaps = keycaps_upper_us,
+        .attributes = attributes_upper_us,
+        .num_modifiers = num_modifiers_upper_us,
+        .modifier_idxs = modifier_idxs_upper_us,
+        .num_switchers = num_switchers_upper_us,
+        .switcher_idxs = switcher_idxs_upper_us,
+        .switcher_dests = switcher_dests_upper_us
+    },
+    {
+        .num_keys = num_keys_numbers_us,
+        .keycaps = keycaps_numbers_us,
+        .attributes = attributes_numbers_us,
+        .num_modifiers = num_modifiers_numbers_us,
+        .modifier_idxs = modifier_idxs_numbers_us,
+        .num_switchers = num_switchers_numbers_us,
+        .switcher_idxs = switcher_idxs_numbers_us,
+        .switcher_dests = switcher_dests_numbers_us
+    },
+    {
+        .num_keys = num_keys_symbols_us,
+        .keycaps = keycaps_symbols_us,
+        .attributes = attributes_symbols_us,
+        .num_modifiers = num_modifiers_symbols_us,
+        .modifier_idxs = modifier_idxs_symbols_us,
+        .num_switchers = num_switchers_symbols_us,
+        .switcher_idxs = switcher_idxs_symbols_us,
+        .switcher_dests = switcher_dests_symbols_us
+    }
+};
+
+/**
+ * Public interface
+ **/
+
+const int sq2lv_num_layouts = 1;
+
+const sq2lv_layout_t sq2lv_layouts[] = {
+    /* US English */
+    {
+        .name = name_us,
+        .short_name = short_name_us,
+        .num_layers = num_layers_us,
+        .layers = layers_us
+    }
+};
+
+const char * const sq2lv_layout_names =
+    "US English";
+
+const char * const sq2lv_layout_short_names =
+    "us";

examples/us/sq2lv_layouts.h

@@ -0,0 +1,63 @@
+/**
+ * Auto-generated with squeek2lvgl
+ **/
+
+#ifndef SQ2LV_LAYOUTS_H
+#define SQ2LV_LAYOUTS_H
+
+#include "lvgl/lvgl.h"
+
+#define SQ2LV_SCANCODES_ENABLED 0
+
+/* Key attributes */
+#define SQ2LV_CTRL_NON_CHAR     (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKED)
+#define SQ2LV_CTRL_MOD_ACTIVE   (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE)
+#define SQ2LV_CTRL_MOD_INACTIVE (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE | LV_BTNMATRIX_CTRL_CHECKED)
+
+/* Layout IDs, values can be used as indexes into the sq2lv_layouts array */
+typedef enum {
+    SQ2LV_LAYOUT_NONE = -1,
+    SQ2LV_LAYOUT_US = 0
+} sq2lv_layout_id_t;
+
+/* Layer type */
+typedef struct {
+    /* Number of keys */
+    const int num_keys;
+    /* Key caps */
+    const char * const * const keycaps;
+    /* Key attributes */
+    const lv_btnmatrix_ctrl_t * const attributes;
+    /* Number of modifier keys */
+    const int num_modifiers;
+    /* Button indexes of modifier keys */
+    const int * const modifier_idxs;
+    /* Number of buttons that trigger a layer switch */
+    const int num_switchers;
+    /* Button indexes that trigger a layer switch */
+    const int * const switcher_idxs;
+    /* Indexes of layers to jump to when triggering layer switch buttons */
+    const int * const switcher_dests;
+} sq2lv_layer_t;
+
+/* Layout type */
+typedef struct {
+    /* Layout name */
+    const char * const name;
+    /* Layout short name */
+    const char * const short_name;
+    /* Total number of layers */
+    const int num_layers;
+    /* Layers array */
+    const sq2lv_layer_t * const layers;
+} sq2lv_layout_t;
+
+/* Layouts */
+extern const int sq2lv_num_layouts;
+extern const sq2lv_layout_t sq2lv_layouts[];
+
+/* Layout names (suitable for use in lv_dropdown_t) */
+extern const char * const sq2lv_layout_names;
+extern const char * const sq2lv_layout_short_names;
+
+#endif /* SQ2LV_LAYOUTS_H */

regenerate-examples.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+# Copyright 2021 Johannes Marbach
+#
+# This file is part of squeek2lvgl, hereafter referred to as the program.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+pipenv install
+
+pipenv run python squeek2lvgl.py \
+    --input us.yaml \
+    --output examples/us \
+    --surround-space-with-arrows
+
+pipenv run python squeek2lvgl.py \
+    --input de.yaml \
+    --output examples/de-with-custom-shift-keycap \
+    --surround-space-with-arrows \
+    --shift-keycap ABC
+
+pipenv run python squeek2lvgl.py \
+    --input es.yaml \
+    --input fr.yaml \
+    --input us.yaml \
+    --output examples/es+fr+us \
+    --surround-space-with-arrows
+
+pipenv run python squeek2lvgl.py \
+    --input terminal/us.yaml \
+    --output examples/us-terminal-with-scancodes \
+    --generate-scancodes

sq2lv.c

@@ -0,0 +1,256 @@
+/**
+ * Copyright 2021 Johannes Marbach
+ *
+ * This file is part of squeek2lvgl, hereafter referred to as the program.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+
+#include "sq2lv.h"
+
+
+/**
+ * Static variables
+ */
+
+static sq2lv_layout_id_t current_layout_id = SQ2LV_LAYOUT_NONE;
+
+
+/**
+ * Static prototypes
+ */
+
+/**
+ * Convert a layer index to an LVGL keyboard mode.
+ *
+ * @param layer_index layer index to convert
+ * @return corresponding LVGL keyboard mode
+ */
+static lv_keyboard_mode_t layer_index_to_keyboard_mode(int layer_index);
+
+/**
+ * Convert an LVGL keyboard mode to a layer index.
+ *
+ * @param keyboard_mode LVGL keyboard mode to convert
+ * @return corresponding layer index
+ */
+static int keyboard_mode_to_layer_index(lv_keyboard_mode_t keyboard_mode);
+
+/**
+ * Get the layer index corresponding to a keyboard's current mode.
+ *
+ * @param keyboard keyboard widget
+ * @return layer index
+ */
+static int get_layer_index(lv_obj_t *keyboard);
+
+/**
+ * Get the index of the destination layer for a layer switcher key in the current layout.
+ *
+ * @param keyboard keyboard widget
+ * @param btn_id button index corresponding to the key
+ * @return the destination layer's index or -1 if the key is not a layer switcher
+ */
+static int get_destination_layer_index_for_layer_switcher(lv_obj_t *keyboard, uint16_t btn_id);
+
+
+/**
+ * Static functions
+ */
+
+static lv_keyboard_mode_t layer_index_to_keyboard_mode(int layer_index) {
+    switch (layer_index) {
+        case 0:
+            return LV_KEYBOARD_MODE_TEXT_LOWER;
+        case 1:
+            return LV_KEYBOARD_MODE_TEXT_UPPER;
+        case 2:
+            return LV_KEYBOARD_MODE_SPECIAL;
+        case 3:
+            return LV_KEYBOARD_MODE_NUMBER;
+        case 4:
+            return LV_KEYBOARD_MODE_USER_1;
+        case 5:
+            return LV_KEYBOARD_MODE_USER_2;
+        case 6:
+            return LV_KEYBOARD_MODE_USER_3;
+        case 7:
+            return LV_KEYBOARD_MODE_USER_4;
+        default:
+            return -1;
+    }
+}
+
+static int keyboard_mode_to_layer_index(lv_keyboard_mode_t keyboard_mode) {
+    switch (keyboard_mode) {
+        case LV_KEYBOARD_MODE_TEXT_LOWER:
+            return 0;
+        case LV_KEYBOARD_MODE_TEXT_UPPER:
+            return 1;
+        case LV_KEYBOARD_MODE_SPECIAL:
+            return 2;
+        case LV_KEYBOARD_MODE_NUMBER:
+            return 3;
+        case LV_KEYBOARD_MODE_USER_1:
+            return 4;
+        case LV_KEYBOARD_MODE_USER_2:
+            return 5;
+        case LV_KEYBOARD_MODE_USER_3:
+            return 6;
+        case LV_KEYBOARD_MODE_USER_4:
+            return 7;
+        default:
+            return -1;
+    }
+}
+
+static int get_layer_index(lv_obj_t *keyboard) {
+    return keyboard_mode_to_layer_index(lv_keyboard_get_mode(keyboard));
+}
+
+static int get_destination_layer_index_for_layer_switcher(lv_obj_t *keyboard, uint16_t btn_id) {
+    if (current_layout_id < 0 || current_layout_id >= sq2lv_num_layouts) {
+        return -1;
+    }
+
+    int layer_index = get_layer_index(keyboard);
+    if (layer_index < 0 || layer_index >= sq2lv_layouts[current_layout_id].num_layers) {
+        return -1;
+    }
+
+    for (int i = 0; i < sq2lv_layouts[current_layout_id].layers[layer_index].num_switchers; ++i) {
+        if (sq2lv_layouts[current_layout_id].layers[layer_index].switcher_idxs[i] == btn_id) {
+            return sq2lv_layouts[current_layout_id].layers[layer_index].switcher_dests[i];
+        }
+    }
+
+    return -1;
+}
+
+
+/**
+ * Public functions
+ */
+
+sq2lv_layout_id_t sq2lv_find_layout_with_short_name(const char *name) {
+    for (int i = 0; i < sq2lv_num_layouts; ++i) {
+        if (strcmp(sq2lv_layouts[i].short_name, name) == 0) {
+            return i;
+        }
+    }
+    return SQ2LV_LAYOUT_NONE;
+}
+
+void sq2lv_switch_layout(lv_obj_t *keyboard, sq2lv_layout_id_t layout_id) {
+    if (layout_id < 0 || layout_id >= sq2lv_num_layouts) {
+        return;
+    }
+
+    /* Assign layers */
+    for (int i = 0; i < sq2lv_layouts[layout_id].num_layers; ++i) {
+        lv_keyboard_set_map(keyboard, layer_index_to_keyboard_mode(i),
+            (const char **)sq2lv_layouts[layout_id].layers[i].keycaps,
+            sq2lv_layouts[layout_id].layers[i].attributes);
+    }
+
+    /* Switch to default layer if current layer doesn't exist in new layout */
+    int layer_index = get_layer_index(keyboard);
+    if (layer_index < 0 || layer_index >= sq2lv_layouts[layout_id].num_layers) {
+        lv_keyboard_set_mode(keyboard, layer_index_to_keyboard_mode(0));
+    }
+
+    current_layout_id = layout_id;
+}
+
+bool sq2lv_is_layer_switcher(lv_obj_t *keyboard, uint16_t btn_id) {
+    return get_destination_layer_index_for_layer_switcher(keyboard, btn_id) >= 0;
+}
+
+bool sq2lv_switch_layer(lv_obj_t *keyboard, uint16_t btn_id) {
+    int destination_layer_index = get_destination_layer_index_for_layer_switcher(keyboard, btn_id);
+    if (destination_layer_index < 0 || destination_layer_index >= sq2lv_layouts[current_layout_id].num_layers) {
+        return false;
+    }
+
+    lv_keyboard_set_mode(keyboard, layer_index_to_keyboard_mode(destination_layer_index));
+    return true;
+}
+
+bool sq2lv_is_modifier(lv_obj_t *keyboard, uint16_t btn_id) {
+    if (current_layout_id < 0 || current_layout_id >= sq2lv_num_layouts) {
+        return false;
+    }
+
+    int layer_index = get_layer_index(keyboard);
+    if (layer_index < 0 || layer_index >= sq2lv_layouts[current_layout_id].num_layers) {
+        return false;
+    }
+
+    for (int i = 0; i < sq2lv_layouts[current_layout_id].layers[layer_index].num_modifiers; ++i) {
+        if (sq2lv_layouts[current_layout_id].layers[layer_index].modifier_idxs[i] == btn_id) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+int *sq2lv_get_modifier_indexes(lv_obj_t *keyboard, int *num_modifiers) {
+    if (current_layout_id < 0 || current_layout_id >= sq2lv_num_layouts) {
+        *num_modifiers = 0;
+        return NULL;
+    }
+
+    int layer_index = get_layer_index(keyboard);
+    if (layer_index < 0 || layer_index >= sq2lv_layouts[current_layout_id].num_layers) {
+        *num_modifiers = 0;
+        return NULL;
+    }
+
+    *num_modifiers = sq2lv_layouts[current_layout_id].layers[layer_index].num_modifiers;
+    if (*num_modifiers == 0) {
+        return NULL;
+    }
+
+    return (int *)(&(sq2lv_layouts[current_layout_id].layers[layer_index].modifier_idxs[0]));
+}
+
+#if SQ2LV_SCANCODES_ENABLED
+int *sq2lv_get_scancodes(lv_obj_t *keyboard, uint16_t btn_id, int *num_scancodes) {
+    if (current_layout_id < 0 || current_layout_id >= sq2lv_num_layouts) {
+        *num_scancodes = 0;
+        return NULL;
+    }
+
+    int layer_index = get_layer_index(keyboard);
+    if (layer_index < 0 || layer_index >= sq2lv_layouts[current_layout_id].num_layers) {
+        *num_scancodes = 0;
+        return NULL;
+    }
+
+    if (btn_id >= sq2lv_layouts[current_layout_id].layers[layer_index].num_keys) {
+        *num_scancodes = 0;
+        return NULL;
+    }
+
+    *num_scancodes = sq2lv_layouts[current_layout_id].layers[layer_index].scancode_nums[btn_id];
+    if (*num_scancodes == 0) {
+        return NULL;
+    }
+
+    const int index = sq2lv_layouts[current_layout_id].layers[layer_index].scancode_idxs[btn_id];
+    return &(sq2lv_layouts[current_layout_id].layers[layer_index].scancodes[index]);
+}
+#endif /* SQ2LV_SCANCODES_ENABLED */

sq2lv.h

@@ -0,0 +1,90 @@
+/**
+ * Copyright 2021 Johannes Marbach
+ *
+ * This file is part of squeek2lvgl, hereafter referred to as the program.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef SQ2LV_H
+#define SQ2LV_H
+
+#include "../sq2lv_layouts.h"
+
+/**
+ * Find the first layout with a given short name.
+ *
+ * @param name layout short name
+ * @return ID of the first matching layout or SQ2LV_LAYOUT_NONE if no layout matched
+ */
+sq2lv_layout_id_t sq2lv_find_layout_with_short_name(const char *name);
+
+/**
+ * Apply a layout to a keyboard.
+ *
+ * @param keyboard keyboard widget
+ * @param layout_id layout ID
+ */
+void sq2lv_switch_layout(lv_obj_t *keyboard, sq2lv_layout_id_t layout_id);
+
+/**
+ * Check if a key acts as a layer switcher in the current layer.
+ *
+ * @param keyboard keyboard widget
+ * @param btn_id button index corresponding to the key
+ * @return true if a layer switch would happen if the key is pressed, false otherwise
+ */
+bool sq2lv_is_layer_switcher(lv_obj_t *keyboard, uint16_t btn_id);
+
+/**
+ * Attempt to perform a layer switch after pressing a key in the current layer.
+ *
+ * @param keyboard keyboard widget
+ * @param btn_id button index corresponding to the pressed key
+ * @return true if a layer switch was performed, false otherwise
+ */
+bool sq2lv_switch_layer(lv_obj_t *keyboard, uint16_t btn_id);
+
+/**
+ * Check if a key is a modifier in the current layer.
+ *
+ * @param keyboard keyboard widget
+ * @param btn_id button index corresponding to the key
+ * @return true if the key is a modifier, false otherwise
+ */
+bool sq2lv_is_modifier(lv_obj_t *keyboard, uint16_t btn_id);
+
+/**
+ * Get the button indexes for all modifier keys in the current layer.
+ *
+ * @param keyboard keyboard widget
+ * @param num_modifiers pointer to an integer into which the number of modifiers will be written
+ * @return pointer to the array of button indexes corresponding to modifier keys
+ */
+int *sq2lv_get_modifier_indexes(lv_obj_t *keyboard, int *num_modifiers);
+
+#if SQ2LV_SCANCODES_ENABLED
+/**
+ * Get scancodes associated with a key in the current layer.
+ *
+ * @param keyboard keyboard widget
+ * @param btn_id button index corresponding to the key
+ * @param num_scancodes pointer to an integer into which the number of scancodes will be written
+ * @return pointer into an array of scancodes at the appropriate index
+ */
+int *sq2lv_get_scancodes(lv_obj_t *keyboard, uint16_t btn_id, int *num_scancodes);
+#endif /* SQ2LV_SCANCODES_ENABLED */
+
+#endif /* SQ2LV_H */

squeek2lvgl.py

@@ -0,0 +1,968 @@
+#!/usr/bin/env python3
+
+# Copyright 2021 Johannes Marbach
+#
+# This file is part of squeek2lvgl, hereafter referred to as the program.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+import argparse
+from typing import Set
+import git
+import os
+import sys
+import tempfile
+import yaml
+
+
+###
+# Global constants
+
+outfile_c = 'sq2lv_layouts.c'
+outfile_h = 'sq2lv_layouts.h'
+
+repository_url = 'https://gitlab.gnome.org/World/Phosh/squeekboard.git'
+rel_layouts_dir = 'data/keyboards'
+
+
+###
+# General helpers
+##
+
+def die(msg):
+    """Print an error message to STDERR and exit with a non-zero code.
+    
+    msg -- message to output on STDERR
+    """
+    sys.stderr.write(msg if msg.endswith('\n') else msg + '\n')
+    sys.exit(1)
+
+
+def warn(msg):
+    """Print a warning message to STDERR.
+    
+    msg -- message to output on STDERR
+    """
+    sys.stderr.write(msg if msg.endswith('\n') else msg + '\n')
+
+
+def parse_arguments():
+    """ Parse commandline arguments.
+    """
+    parser = argparse.ArgumentParser(description='Convert squeekboard layouts to LVGL-compatible C code.')
+    parser.add_argument('--input', dest='input', action='append', required=True, help='squeekboard layout to '
+                        + 'use as input for generation. Has to be a YAML file path relative to data/keyboards. '
+                        + 'Can be specified multiple times.')
+    parser.add_argument('--name', dest='name', action='append', required=True, help='name for the layout. '
+                        + 'Needs to be specified once for every --input flag.')
+    parser.add_argument('--extra-top-row-base', dest='extra_top_row_base', type=str, required=False, help='additional '
+                        + 'key row to add at the top of the base layer.')
+    parser.add_argument('--extra-top-row-upper', dest='extra_top_row_upper', type=str, required=False, help='additional '
+                        + 'key row to add at the top of the upper layer.')
+    parser.add_argument('--shift-keycap', dest='shift_keycap', type=str, required=False, help='key caption for '
+                        + 'the Shift key. Defaults to "Shift".')
+    parser.add_argument('--surround-space-with-arrows', action='store_true', dest='arrows_around_space',
+                        help='insert left / right arrow before / after space key')
+    parser.add_argument('--generate-scancodes', action='store_true', dest='generate_scancodes', help='also '
+                        + 'generate scancode tables (only works for US layout currently)')
+    parser.add_argument('--output', dest='output', type=str, required=True, help='output directory for generated '
+                        + 'files')
+    args = parser.parse_args()
+
+    if not args.output or not os.path.isdir(args.output):
+        die('Error: no valid output directory specified')
+
+    return args
+
+
+def clone_squeekboard_repo(destination):
+    """ Clone the squeekboard git repository.
+
+    destination -- directory path to clone to
+    """
+    git.Repo.clone_from(repository_url, destination, depth=1)
+
+
+def load_yaml(layouts_dir, rel_path):
+    """ Load a YAML file and return its dictionary representation.
+    
+    rel_path -- path of the YAML file relative to the layouts root directory
+    """
+    path = os.path.join(layouts_dir, rel_path)
+    if not os.path.isfile(path):
+        die(f'could not find input file {path}')
+
+    data = None
+    with open(path, 'r') as stream:
+        try:
+            data = yaml.safe_load(stream)
+        except yaml.YAMLError as exc:
+            die(f'Could not load YAML file {path}: {exc}')
+    if not data:
+        die(f'could not load input file {path}')
+    if not 'views' in data:
+        die(f'no "views" element in YAML data loaded from input file {path}')
+    
+    return data
+
+
+def write_files(lines_c, lines_h):
+    """Write accumulated output to C and header file, respectively.
+
+    lines_c -- sequence of lines to write to C file
+    lines_h -- sequence of lines to write to header
+    """
+    with open(os.path.join(args.output, outfile_c), 'w') as fp:
+        fp.write('\n'.join(lines_c))
+    with open(os.path.join(args.output, outfile_h), 'w') as fp:
+        fp.write('\n'.join(lines_h))
+
+
+def comma_if_needed(sequence, idx):
+    """Return a comma unless idx points to the last element in sequence.
+    
+    sequence -- a sequence of elements
+    idx -- an index into the sequence
+    """
+    return ',' if idx < len(sequence) - 1 else ''
+
+
+###
+# SourceFileBuilder
+##
+
+class SourceFileBuilder(object):
+    """Builder for .c and .h files.
+    """
+
+    def __init__(self):
+        """Constructor.
+        """
+        self.lines = [] 
+        self._add_header_comment()
+
+    def add_line(self, line=None):
+        """Add a single line and return the builder.
+        
+        line - string representing the line to add (if None, an empty line will be added)
+        """
+        self.lines.append(line if line else '')
+        return self
+
+    def add_lines(self, lines):
+        """Add multiple lines and return the builder.
+        
+        lines - a list of strings representing the lines to add
+        """
+        self.lines += lines
+        return self
+
+    def wrap_in_ifndef(self, macro):
+        """Wrap all of the current content in a macro check to prevent double inclusion and
+        return the builder.
+        
+        macro -- name of the macro to use
+        """
+        idx = 0
+        while self.lines[idx][:2] in ['/*', ' *']:
+            idx += 1
+        self.lines.insert(idx, '')
+        self.lines.insert(idx + 1, f'#ifndef {macro}')
+        self.lines.insert(idx + 2, f'#define {macro}')
+        self.add_lines([f'#endif /* {macro} */', ''])
+
+    def _add_header_comment(self):
+        """Add the generator header comment and return the builder.
+        """
+        self.add_lines(['/**', ' * Auto-generated with squeek2lvgl', ' **/', ''])
+        return self
+
+    def add_include(self, header):
+        """Add an include statement and return the builder.
+        
+        header -- path to file to be included
+        """
+        self.add_line(f'#include "{header}"')
+        return self
+
+    def add_system_include(self, header):
+        """Add a system include statement and return the builder.
+        
+        header -- path to file to be included
+        """
+        self.add_line(f'#include <{header}>')
+        return self
+
+    def add_section_comment(self, title):
+        """Add a comment marking the beginning of a section and return the builder.
+        
+        title -- title of the section
+        """
+        self.add_lines(['/**', f' * {title}', ' **/'])
+        return self
+
+    def add_subsection_comment(self, title):
+        """Add a comment marking the beginning of a subsection and return the builder.
+        
+        title -- title of the subsection
+        """
+        self.add_line(f'/* {title} */')
+        return self
+
+    def add_array(self, static, type, identifier, values, row_terminator, array_terminator):
+        """Add a row-based C array and return the builder.
+        
+        static -- True if the variable is static
+        type -- variable type
+        identifier -- variable identifier
+        values -- values per row as a list of lists,
+        row_terminator -- element to append to each row except the last
+        array_terminator -- element to append to the last row
+        """
+        prefix = 'static ' if static else ''
+
+        if not values or not values[0]:
+            self.add_line(f'{prefix}{type} * const {identifier} = NULL;')
+            return self
+
+        self.add_line(f'{prefix}{type} {identifier}[] = ' + '{ \\')
+        for i, values_in_row in enumerate(values):
+            elements = values_in_row
+            if i < len(values) - 1 and row_terminator:
+                elements.append(row_terminator)
+            if i == len(values) - 1 and array_terminator:
+                elements.append(array_terminator)
+            joined = ', '.join([f'{e}' for e in elements])
+            self.add_line(f'    {joined}{comma_if_needed(values, i)} \\')
+        self.add_line('};')
+
+        return self
+
+    def add_flat_array(self, static, type, identifier, values, array_terminator):
+        """Add a flat C array and return the builder.
+        
+        static -- True if the variable is static
+        type -- variable type
+        identifier -- variable identifier
+        values -- list of values,
+        array_terminator -- element to append after the last element
+        """
+        return self.add_array(static, type, identifier, [values], '', array_terminator)
+
+
+###
+# Layout processing
+##
+
+def layout_id_to_c_identifier(layout_id):
+    """Return a string for a layout that is suitable to be used in a C identifier.
+    
+    layout_id -- ID of the layout
+    """
+    return layout_id.lower().replace('/', '_')
+
+
+layer_name_for_view_id = {
+    'base': 'Lowercase letters',
+    'upper': 'Uppercase letters',
+    'numbers': 'Numbers / symbols',
+    'eschars': 'Special characters',
+    'symbols': 'Symbols',
+    'actions': 'Actions'
+}
+
+def view_id_to_layer_name(view_id):
+    """Return a descriptive name for a layer based on its view ID.
+    
+    view_id -- the ID of the view representing the layer
+    """
+    if view_id not in layer_name_for_view_id:
+        return None
+    return layer_name_for_view_id[view_id]
+
+
+layer_identifier_for_view_id = {
+    'base': 'lower',
+    'eschars': 'special'
+}
+
+def view_id_to_c_identifier(view_id):
+    """Return a string for a view that is suitable to be used in a C identifier.
+    
+    view_id -- ID of the view
+    """
+    return layer_identifier_for_view_id[view_id] if view_id in layer_identifier_for_view_id else view_id
+
+
+ignored_keys = {
+    'preferences'
+}
+
+def is_key_ignored(key):
+    """Return True if a key should be ignored or False otherwise.
+    
+    key -- the key in question
+    """
+    return key in ignored_keys
+
+
+keycap_for_key = {
+    '\\': '\\\\',
+    '"': '\\"',
+    '↑': 'LV_SYMBOL_UP',
+    '↓': 'LV_SYMBOL_DOWN',
+    '←': 'LV_SYMBOL_LEFT',
+    '→': 'LV_SYMBOL_RIGHT',
+    'BackSpace': 'LV_SYMBOL_BACKSPACE',
+    'colon': ':',
+    'period': '.',
+    'Shift_L': 'SQ2LV_SYMBOL_SHIFT',
+    'space': ' ',
+    'Return': 'LV_SYMBOL_OK',
+    'Up': 'LV_SYMBOL_UP',
+    'Left': 'LV_SYMBOL_LEFT',
+    'Down': 'LV_SYMBOL_DOWN',
+    'Right': 'LV_SYMBOL_RIGHT'
+}
+
+def key_to_keycap(args, key):
+    """Return the keycap for a key.
+    
+    args -- commandline arguments
+    key -- the key
+    """
+    return keycap_for_key[key] if key in keycap_for_key else key
+
+
+def key_is_modifier(key, data_buttons):
+    """Return true if a key acts as a modifier.
+
+    key -- the key in question
+    data_buttons -- the "buttons" object from the layout's YAML file
+    """
+    return key in data_buttons and 'modifier' in data_buttons[key]
+
+
+repeatable_keys = {
+    'BackSpace',
+    'Del',
+    'PgUp',
+    'PgDn',
+    'Return',
+    'space',
+    '↑',
+    '←',
+    '↓',
+    '→',
+    'Up',
+    'Left',
+    'Down',
+    'Right'
+}
+
+def key_can_repeat(key):
+    """Return True if a key can repeatedly emit while being held down.
+
+    key -- the key
+    """
+    return key in repeatable_keys
+
+
+def key_to_attributes(key, is_locked, is_lockable, is_extra_top_row, data_buttons):
+    """Return the LVGL button attributes for a key.
+    
+    key -- the key in question
+    is_locked - whether the key is locked  in the current view
+    is_lockable - whether the key can be locked in the current view
+    is_extra_top_row - whether the key is in the extra top row
+    data_buttons -- the "buttons" object from the layout's YAML file
+    """
+    attributes = []
+
+    if key_is_modifier(key, data_buttons):
+        attributes.append('SQ2LV_CTRL_MOD_INACTIVE')
+    elif is_locked:
+        attributes.append('SQ2LV_CTRL_MOD_ACTIVE')
+    elif is_lockable:
+        attributes.append('SQ2LV_CTRL_MOD_INACTIVE')
+    elif key in data_buttons and key not in ['"', 'colon', 'period', 'space'] or key in ['↑', '←', '↓', '→']:
+        attributes.append('SQ2LV_CTRL_NON_CHAR')
+    elif key not in ['space']:
+        attributes.append('LV_BTNMATRIX_CTRL_POPOVER')
+
+    if not key_can_repeat(key):
+        attributes.append('LV_BTNMATRIX_CTRL_NO_REPEAT')
+
+    if is_extra_top_row:
+        attributes.append('SQ2LV_CTRL_NON_CHAR')
+    if key == '<hidden>':
+        attributes.append('LV_BTNMATRIX_CTRL_HIDDEN')
+
+    if key not in data_buttons or key in ['"', 'colon', 'period']:
+        attributes.append('2')
+    elif key == 'space':
+        attributes.append('7')
+    else:
+        attributes.append('3')
+
+    return ' | '.join(attributes)
+
+
+def keycap_to_c_value(keycap):
+    """Return the right-hand side C value for a keycap
+    """
+    return keycap if keycap.startswith('LV_') or keycap.startswith('SQ2LV_') else f'"{keycap}"'
+
+
+scancodes_for_keycap = {
+    '0': ['KEY_0'],
+    '1': ['KEY_1'],
+    '2': ['KEY_2'],
+    '3': ['KEY_3'],
+    '4': ['KEY_4'],
+    '5': ['KEY_5'],
+    '6': ['KEY_6'],
+    '7': ['KEY_7'],
+    '8': ['KEY_8'],
+    '9': ['KEY_9'],
+    'a': ['KEY_A'],
+    'b': ['KEY_B'],
+    'c': ['KEY_C'],
+    'd': ['KEY_D'],
+    'e': ['KEY_E'],
+    'f': ['KEY_F'],
+    'g': ['KEY_G'],
+    'h': ['KEY_H'],
+    'i': ['KEY_I'],
+    'j': ['KEY_J'],
+    'k': ['KEY_K'],
+    'l': ['KEY_L'],
+    'm': ['KEY_M'],
+    'n': ['KEY_N'],
+    'o': ['KEY_O'],
+    'p': ['KEY_P'],
+    'q': ['KEY_Q'],
+    'r': ['KEY_R'],
+    's': ['KEY_S'],
+    't': ['KEY_T'],
+    'u': ['KEY_U'],
+    'v': ['KEY_V'],
+    'w': ['KEY_W'],
+    'x': ['KEY_X'],
+    'y': ['KEY_Y'],
+    'z': ['KEY_Z'],
+    'A': ['KEY_LEFTSHIFT', 'KEY_A'],
+    'B': ['KEY_LEFTSHIFT', 'KEY_B'],
+    'C': ['KEY_LEFTSHIFT', 'KEY_C'],
+    'D': ['KEY_LEFTSHIFT', 'KEY_D'],
+    'E': ['KEY_LEFTSHIFT', 'KEY_E'],
+    'F': ['KEY_LEFTSHIFT', 'KEY_F'],
+    'G': ['KEY_LEFTSHIFT', 'KEY_G'],
+    'H': ['KEY_LEFTSHIFT', 'KEY_H'],
+    'I': ['KEY_LEFTSHIFT', 'KEY_I'],
+    'J': ['KEY_LEFTSHIFT', 'KEY_J'],
+    'K': ['KEY_LEFTSHIFT', 'KEY_K'],
+    'L': ['KEY_LEFTSHIFT', 'KEY_L'],
+    'M': ['KEY_LEFTSHIFT', 'KEY_M'],
+    'N': ['KEY_LEFTSHIFT', 'KEY_N'],
+    'O': ['KEY_LEFTSHIFT', 'KEY_O'],
+    'P': ['KEY_LEFTSHIFT', 'KEY_P'],
+    'Q': ['KEY_LEFTSHIFT', 'KEY_Q'],
+    'R': ['KEY_LEFTSHIFT', 'KEY_R'],
+    'S': ['KEY_LEFTSHIFT', 'KEY_S'],
+    'T': ['KEY_LEFTSHIFT', 'KEY_T'],
+    'U': ['KEY_LEFTSHIFT', 'KEY_U'],
+    'V': ['KEY_LEFTSHIFT', 'KEY_V'],
+    'W': ['KEY_LEFTSHIFT', 'KEY_W'],
+    'X': ['KEY_LEFTSHIFT', 'KEY_X'],
+    'Y': ['KEY_LEFTSHIFT', 'KEY_Y'],
+    'Z': ['KEY_LEFTSHIFT', 'KEY_Z'],
+    'Alt': ['KEY_LEFTALT'],
+    'Ctrl': ['KEY_LEFTCTRL'],
+    'LV_SYMBOL_UP': ['KEY_UP'],
+    'LV_SYMBOL_DOWN': ['KEY_DOWN'],
+    'LV_SYMBOL_LEFT': ['KEY_LEFT'],
+    'LV_SYMBOL_RIGHT': ['KEY_RIGHT'],
+    'LV_SYMBOL_BACKSPACE': ['KEY_BACKSPACE'],
+    'LV_SYMBOL_OK': ['KEY_ENTER'],
+    ' ': ['KEY_SPACE'],
+    'ABC': [],
+    'abc': [],
+    '123': [],
+    'PgUp': ['KEY_PAGEUP'],
+    'PgDn': ['KEY_PAGEDOWN'],
+    'Home': ['KEY_HOME'],
+    'End': ['KEY_END'],
+    '*': ['KEY_LEFTSHIFT', 'KEY_8'],
+    '#': ['KEY_LEFTSHIFT', 'KEY_3'],
+    '$': ['KEY_LEFTSHIFT', 'KEY_4'],
+    '/': ['KEY_SLASH'],
+    '&': ['KEY_LEFTSHIFT', 'KEY_7'],
+    '-': ['KEY_MINUS'],
+    '_': ['KEY_LEFTSHIFT', 'KEY_MINUS'],
+    '+': ['KEY_LEFTSHIFT', 'KEY_EQUAL'],
+    '(': ['KEY_LEFTSHIFT', 'KEY_9'],
+    ')': ['KEY_LEFTSHIFT', 'KEY_0'],
+    ',': ['KEY_COMMA'],
+    '\\"': ['KEY_LEFTSHIFT', 'KEY_APOSTROPHE'],
+    '\'': ['KEY_APOSTROPHE'],
+    ':': ['KEY_LEFTSHIFT', 'KEY_SEMICOLON'],
+    ';': ['KEY_SEMICOLON'],
+    '!': ['KEY_LEFTSHIFT', 'KEY_1'],
+    '?': ['KEY_LEFTSHIFT', 'KEY_SLASH'],
+    '.': ['KEY_DOT'],
+    '~': ['KEY_LEFTSHIFT', 'KEY_GRAVE'],
+    '`': ['KEY_GRAVE'],
+    '|': ['KEY_LEFTSHIFT', 'KEY_BACKSLASH'],
+    # '·': [],
+    # '√': [],
+    # 'π': [],
+    # 'τ': [],
+    # '÷': [],
+    # '×': [],
+    # '¶': [],
+    # '©': [],
+    # '®': [],
+    # '£': [],
+    # '€': [],
+    # '¥': [],
+    '\\\\': ['KEY_BACKSLASH'],
+    '^': ['KEY_LEFTSHIFT', 'KEY_6'],
+    # '°': [],
+    '@': ['KEY_LEFTSHIFT', 'KEY_2'],
+    '{': ['KEY_LEFTSHIFT', 'KEY_LEFTBRACE'],
+    '}': ['KEY_LEFTSHIFT', 'KEY_RIGHTBRACE'],
+    '%': ['KEY_LEFTSHIFT', 'KEY_5'],
+    '<': ['KEY_LEFTSHIFT', 'KEY_COMMA'],
+    '>': ['KEY_LEFTSHIFT', 'KEY_DOT'],
+    '=': ['KEY_EQUAL'],
+    '[': ['KEY_LEFTBRACE'],
+    ']': ['KEY_RIGHTBRACE'],
+    'F1': ['KEY_F1'],
+    'F2': ['KEY_F2'],
+    'F3': ['KEY_F3'],
+    'F4': ['KEY_F4'],
+    'F5': ['KEY_F5'],
+    'F6': ['KEY_F6'],
+    'F7': ['KEY_F7'],
+    'F8': ['KEY_F8'],
+    'F9': ['KEY_F9'],
+    'F10': ['KEY_F10'],
+    'F11': ['KEY_F11'],
+    'F12': ['KEY_F12'],
+    'Esc': ['KEY_ESC'],
+    'Tab': ['KEY_TAB'],
+    'Pause': ['KEY_PAUSE'],
+    'Insert': ['KEY_INSERT'],
+    'Del': ['KEY_DELETE'],
+    'Menu': ['KEY_COMPOSE'],
+    'Break': ['KEY_BREAK'],
+    '↑': ['KEY_UP'],
+    '←': ['KEY_LEFT'],
+    '↓': ['KEY_DOWN'],
+    '→': ['KEY_RIGHT']
+}
+
+def keycap_to_scancodes(args, keycap, is_switcher):
+    """Return the scancodes needed to produce a keycap
+    
+    args -- commandline arguments
+    keycap -- keycap to produce
+    is_switcher -- whether the key is a layer switcher
+    """
+    if is_switcher:
+        return []
+    if keycap not in scancodes_for_keycap:
+        warn(f'Cannot determine scancodes for unknown keycap "{keycap}"')
+        return []
+    return scancodes_for_keycap[keycap]
+
+
+def get_keycaps_attrs_modifiers_switchers_scancodes(args, view_id, data_views, data_buttons, extra_top_row):
+    """Return keycaps, LVGL button attributes, modifier key indexes, layer switching key indexes,
+    layer switching key destinations and scancodes for a view
+    
+    args -- commandline arguments
+    view_id -- ID of the view
+    data_views -- the "views" object from the layout's YAML file
+    data_buttons -- the "buttons" object from the layout's YAML file
+    extra_top_row -- additional row of keys to insert at the top or "<hidden>" to insert an empty row
+    """
+    keycaps = []
+    attrs = []
+    modifier_idxs = []
+    switcher_idxs = []
+    switcher_dests = []
+    scancodes = []
+
+    idx = 0
+
+    rows = data_views[view_id]
+    if extra_top_row:
+        rows = [extra_top_row] + rows
+
+    for index, row in enumerate(rows):
+        keycaps_in_row = []
+        attrs_in_row = []
+        scancodes_in_row = []
+
+        keys = row.split()
+
+        if args.arrows_around_space:
+            space_idx = None
+            try:
+                space_idx = keys.index('space')
+            except ValueError:
+                pass
+            if space_idx != None:
+                keys.insert(space_idx, '←')
+                keys.insert(space_idx + 2, '→')
+
+        for key in keys:
+            if is_key_ignored(key):
+                continue
+
+            keycap = None
+
+            if key in data_buttons and 'label' in data_buttons[key] and key not in ['Up', 'Left', 'Down', 'Right']:
+                keycap = data_buttons[key]['label'].replace('\\', '\\\\')
+            else:
+                keycap = key_to_keycap(args, key)
+
+            if not keycap:
+                continue
+
+            keycaps_in_row.append(keycap_to_c_value(keycap))
+
+            if key_is_modifier(key, data_buttons):
+                modifier_idxs.append(idx)
+
+            is_locked = False
+            is_lockable = False
+            is_switcher = False
+
+            if key in data_buttons and 'action' in data_buttons[key]:
+                action = data_buttons[key]['action']
+                dest = None
+
+                if 'set_view' in action:
+                    dest = action['set_view']
+                elif 'locking' in action and 'lock_view' in action['locking'] and 'unlock_view' in action['locking']:
+                    if action['locking']['lock_view'] == view_id:
+                        dest = action['locking']['unlock_view']
+                        is_locked = True
+                    else:
+                        dest = action['locking']['lock_view']
+                        is_lockable = True
+                if dest:
+                    switcher_idxs.append(idx)
+                    switcher_dests.append(dest)
+                    is_switcher = True
+
+            attrs_in_row.append(key_to_attributes(key, is_locked, is_lockable, extra_top_row and index == 0, data_buttons))
+
+            if args.generate_scancodes:
+                scancodes_in_row.append(keycap_to_scancodes(args, keycap, is_switcher))
+
+            idx += 1
+
+        keycaps.append(keycaps_in_row)
+        attrs.append(attrs_in_row)
+        scancodes.append(scancodes_in_row)
+
+    return keycaps, attrs, modifier_idxs, switcher_idxs, switcher_dests, scancodes
+
+
+def flatten_scancodes(scancodes):
+    """Process a nested list of scancodes per row and key and return a flattened list of scancodes per row,
+    a list of starting indexes and a list of scancode counts.
+    
+    scancodes -- list (rows) of list (keys) of list (scancodes) of scancodes
+    """
+    flat = []
+    idxs = []
+    nums = []
+
+    if args.generate_scancodes:
+        idx = 0
+        num = 0
+
+        for scancodes_in_row in scancodes:
+            flat_in_row = []
+            idxs_in_row = []
+            nums_in_row = []
+
+            for codes in scancodes_in_row:
+                flat_in_row += codes
+                idxs_in_row.append(idx if len(codes) > 0 else -1)
+                nums_in_row.append(len(codes))
+                idx += len(codes)
+
+            flat.append(flat_in_row)
+            idxs.append(idxs_in_row)
+            nums.append(nums_in_row)
+
+    return flat, idxs, nums
+
+
+###
+# Main
+##
+
+if __name__ == '__main__':
+    args = parse_arguments()
+
+    c_builder = SourceFileBuilder()
+    c_builder.add_include(outfile_h)
+    if args.generate_scancodes:
+        c_builder.add_system_include('linux/input.h')
+    c_builder.add_line()
+
+    shift_keycap = args.shift_keycap if args.shift_keycap else 'Shift'
+    c_builder.add_line(f'#define SQ2LV_SYMBOL_SHIFT "{shift_keycap}"')
+    c_builder.add_line()
+
+    h_builder = SourceFileBuilder()
+    h_builder.add_include('lvgl/lvgl.h')
+    h_builder.add_line()
+    h_builder.add_line(f'#define SQ2LV_SCANCODES_ENABLED {1 if args.generate_scancodes else 0}')
+    h_builder.add_line()
+    h_builder.add_subsection_comment('Key attributes')
+    h_builder.add_line('#define SQ2LV_CTRL_NON_CHAR     (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKED)')
+    h_builder.add_line('#define SQ2LV_CTRL_MOD_ACTIVE   (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE)')
+    h_builder.add_line('#define SQ2LV_CTRL_MOD_INACTIVE (LV_BTNMATRIX_CTRL_CLICK_TRIG | LV_BTNMATRIX_CTRL_CHECKABLE | LV_BTNMATRIX_CTRL_CHECKED)')
+    h_builder.add_line()
+
+    layouts = []
+    unique_scancodes = {}
+
+    with tempfile.TemporaryDirectory() as tmp:
+        clone_squeekboard_repo(tmp)
+
+        layouts_dir = os.path.join(tmp, rel_layouts_dir)
+
+        for file, layout_name in zip(args.input, args.name):
+            layout_id, _ = os.path.splitext(file)
+            layout_identifier = layout_id_to_c_identifier(layout_id)
+
+            data = load_yaml(layouts_dir, file)
+            data_views = data['views']
+            data_buttons = data['buttons'] if 'buttons' in data else {}
+
+            c_builder.add_section_comment(f'Layout: {layout_name} - generated from {layout_id}')
+            c_builder.add_line()
+            c_builder.add_line(f'static const char * const name_{layout_identifier} = "{layout_name}";')
+            c_builder.add_line(f'static const char * const short_name_{layout_identifier} = "{layout_id}";')
+            c_builder.add_line()
+
+            layer_identifiers = []
+
+            view_ids = [view_id for view_id in data_views if view_id_to_layer_name(view_id) != None]
+
+            for view_id in data_views:
+                layer_name = view_id_to_layer_name(view_id)
+                if not layer_name:
+                    warn(f'Ignoring unknown view_id {view_id}')
+                    continue
+
+                layer_identifier = f'{view_id_to_c_identifier(view_id)}_{layout_identifier}'
+                layer_identifiers.append(layer_identifier)
+
+                c_builder.add_subsection_comment(f'Layer: {layer_name} - generated from {view_id}')
+                c_builder.add_line()
+ 
+                extra_top_row = None
+                if view_id == "base":
+                    extra_top_row = args.extra_top_row_base
+                if view_id == "upper":
+                    extra_top_row = args.extra_top_row_upper
+                if not extra_top_row and (args.extra_top_row_base or args.extra_top_row_upper):
+                    extra_top_row = "<hidden>"
+
+                keycaps, attrs, modifier_idxs, switcher_idxs, switcher_dests, scancodes = get_keycaps_attrs_modifiers_switchers_scancodes(
+                    args, view_id, data_views, data_buttons, extra_top_row)
+
+                for dest in switcher_dests:
+                    if dest not in view_ids:
+                        die(f'Unhandled layer switch destination {dest}')
+                switcher_dests = [view_ids.index(d) for d in switcher_dests if d in view_ids]
+
+                c_builder.add_line(f'static const int num_keys_{layer_identifier} = {sum([len(row) for row in keycaps])};')
+                c_builder.add_line()
+                c_builder.add_array(True, 'const char * const', f'keycaps_{layer_identifier}', keycaps, '"\\n"', '""')
+                c_builder.add_line()
+                c_builder.add_array(True, 'const lv_btnmatrix_ctrl_t', f'attributes_{layer_identifier}', attrs, '', '')
+                c_builder.add_line()
+
+                c_builder.add_line(f'static const int num_modifiers_{layer_identifier} = {len(modifier_idxs)};')
+                c_builder.add_line()
+                c_builder.add_flat_array(True, 'const int', f'modifier_idxs_{layer_identifier}', modifier_idxs, '')
+                c_builder.add_line()
+
+                c_builder.add_line(f'static const int num_switchers_{layer_identifier} = {len(switcher_idxs)};')
+                c_builder.add_line()
+                c_builder.add_flat_array(True, 'const int', f'switcher_idxs_{layer_identifier}', switcher_idxs, '')
+                c_builder.add_line()
+                c_builder.add_flat_array(True, 'const int', f'switcher_dests_{layer_identifier}', switcher_dests, '')
+                c_builder.add_line()
+
+                if args.generate_scancodes:
+                    scancodes_flat, scancode_idxs, scancode_nums = flatten_scancodes(scancodes)
+
+                    for scancodes_in_row in scancodes_flat:
+                        for scancode in scancodes_in_row:
+                            unique_scancodes[scancode] = True
+
+                    c_builder.add_line(f'static const int num_scancodes_{layer_identifier} = {len(scancodes)};')
+                    c_builder.add_line()
+                    c_builder.add_array(True, 'const int', f'scancodes_{layer_identifier}', scancodes_flat, '', '')
+                    c_builder.add_line()
+                    c_builder.add_array(True, 'const int', f'scancode_idxs_{layer_identifier}', scancode_idxs, '', '')
+                    c_builder.add_line()
+                    c_builder.add_array(True, 'const int', f'scancode_nums_{layer_identifier}', scancode_nums, '', '')
+                    c_builder.add_line()
+
+            c_builder.add_subsection_comment(f'Layer array')
+            c_builder.add_line()
+            c_builder.add_line(f'static const int num_layers_{layout_identifier} = {len(layer_identifiers)};')
+            c_builder.add_line()
+            c_builder.add_line(f'static const sq2lv_layer_t layers_{layout_identifier}[] = ' + '{')
+            for i, identifier in enumerate(layer_identifiers):
+                c_builder.add_line('    {')
+                fields = ['num_keys', 'keycaps', 'attributes', 'num_modifiers', 'modifier_idxs', 'num_switchers', 'switcher_idxs', 'switcher_dests']
+                if args.generate_scancodes:
+                    fields += ['num_scancodes', 'scancodes', 'scancode_idxs', 'scancode_nums']
+                for k, field in enumerate(fields):
+                    c_builder.add_line(f'        .{field} = {field}_{identifier}{comma_if_needed(fields, k)}')
+                c_builder.add_line('    }' + comma_if_needed(layer_identifiers, i))
+            c_builder.add_line('};')
+            c_builder.add_line()
+
+            layouts.append({
+                'name': layout_name,
+                'short_name': layout_id,
+                'identifier': layout_identifier
+            })
+
+    h_builder.add_line('/* Layout IDs, values can be used as indexes into the sq2lv_layouts array */')
+    h_builder.add_line('typedef enum {')
+    h_builder.add_line('    SQ2LV_LAYOUT_NONE = -1,')
+    for i, layout in enumerate(layouts):
+        identifier = layout['identifier'].upper()
+        h_builder.add_line(f'    SQ2LV_LAYOUT_{identifier} = {i}{comma_if_needed(layouts, i)}')
+    h_builder.add_line('} sq2lv_layout_id_t;')
+    h_builder.add_line()
+
+    h_builder.add_line('/* Layer type */')
+    h_builder.add_line('typedef struct {')
+    h_builder.add_line('    /* Number of keys */')
+    h_builder.add_line('    const int num_keys;')
+    h_builder.add_line('    /* Key caps */')
+    h_builder.add_line('    const char * const * const keycaps;')
+    h_builder.add_line('    /* Key attributes */')
+    h_builder.add_line('    const lv_btnmatrix_ctrl_t * const attributes;')
+    h_builder.add_line('    /* Number of modifier keys */')
+    h_builder.add_line('    const int num_modifiers;')
+    h_builder.add_line('    /* Button indexes of modifier keys */')
+    h_builder.add_line('    const int * const modifier_idxs;')
+    h_builder.add_line('    /* Number of buttons that trigger a layer switch */')
+    h_builder.add_line('    const int num_switchers;')
+    h_builder.add_line('    /* Button indexes that trigger a layer switch */')
+    h_builder.add_line('    const int * const switcher_idxs;')
+    h_builder.add_line('    /* Indexes of layers to jump to when triggering layer switch buttons */')
+    h_builder.add_line('    const int * const switcher_dests;')
+    if args.generate_scancodes:
+        h_builder.add_line('    /* Total number of scancodes */')
+        h_builder.add_line('    const int num_scancodes;')
+        h_builder.add_line('    /* Flat array of scancodes */')
+        h_builder.add_line('    const int * const scancodes;')
+        h_builder.add_line('    /* Start index in scancodes array for key cap */')
+        h_builder.add_line('    const int * const scancode_idxs;')
+        h_builder.add_line('    /* Number of scancodes for key cap */')
+        h_builder.add_line('    const int * const scancode_nums;')
+    h_builder.add_line('} sq2lv_layer_t;')
+    h_builder.add_line()
+
+    h_builder.add_line('/* Layout type */')
+    h_builder.add_line('typedef struct {')
+    h_builder.add_line('    /* Layout name */')
+    h_builder.add_line('    const char * const name;')
+    h_builder.add_line('    /* Layout short name */')
+    h_builder.add_line('    const char * const short_name;')
+    h_builder.add_line('    /* Total number of layers */')
+    h_builder.add_line('    const int num_layers;')
+    h_builder.add_line('    /* Layers array */')
+    h_builder.add_line('    const sq2lv_layer_t * const layers;')
+    h_builder.add_line('} sq2lv_layout_t;')
+    h_builder.add_line()
+
+    h_builder.add_line('/* Layouts */')
+    h_builder.add_line('extern const int sq2lv_num_layouts;')
+    h_builder.add_line('extern const sq2lv_layout_t sq2lv_layouts[];')
+    h_builder.add_line()
+
+    h_builder.add_line('/* Layout names (suitable for use in lv_dropdown_t) */')
+    h_builder.add_line('extern const char * const sq2lv_layout_names;') 
+    h_builder.add_line('extern const char * const sq2lv_layout_short_names;') 
+    h_builder.add_line()
+
+    if args.generate_scancodes:
+        h_builder.add_line('/* Unique scancodes from all layout (suitable for setting up uinput devices) */')
+        h_builder.add_line('extern const int sq2lv_num_unique_scancodes;')
+        h_builder.add_line('extern const int sq2lv_unique_scancodes[];')
+        h_builder.add_line()
+
+    c_builder.add_section_comment('Public interface')
+    c_builder.add_line()
+
+    c_builder.add_line('const int sq2lv_num_layouts = ' + str(len(layouts)) + ';')
+    c_builder.add_line()
+
+    c_builder.add_line('const sq2lv_layout_t sq2lv_layouts[] = {')
+    for i, layout in enumerate(layouts):
+        c_builder.add_line('    /* ' + layout['name'] + ' */')
+        c_builder.add_line('    {')
+        fields = ['name', 'short_name', 'num_layers', 'layers']
+        identifier = layout['identifier']
+        for j, field in enumerate(fields):
+            c_builder.add_line(f'        .{field} = {field}_{identifier}{comma_if_needed(fields, j)}')
+        c_builder.add_line('    }' + comma_if_needed(layouts, i))
+    c_builder.add_line('};')
+    c_builder.add_line()
+
+    names = [layout['name'] for layout in layouts]
+    names = '\n    ' + ' "\\n"\n    '.join([f'"{name}"' for name in names])
+    c_builder.add_line(f'const char * const sq2lv_layout_names ={names};')
+    c_builder.add_line()
+
+    short_names = [layout['short_name'] for layout in layouts]
+    short_names = '\n    ' + ' "\\n"\n    '.join([f'"{short_name}"' for short_name in short_names])
+    c_builder.add_line(f'const char * const sq2lv_layout_short_names ={short_names};')
+    c_builder.add_line()
+
+    if args.generate_scancodes:
+        c_builder.add_line(f'const int sq2lv_num_unique_scancodes = {len(unique_scancodes)};')
+        c_builder.add_line()
+        c_builder.add_line('const int sq2lv_unique_scancodes[] = {')
+        scancodes = list(unique_scancodes.keys())
+        chunks = [scancodes[i:i + 10] for i in range(0, len(scancodes), 10)]
+        for i, chunk in enumerate(chunks):
+            joined = ', '.join(chunk)
+            c_builder.add_line(f'    {joined}{comma_if_needed(chunks, i)}')
+        c_builder.add_line('};')
+        c_builder.add_line()
+
+    h_builder.wrap_in_ifndef('SQ2LV_LAYOUTS_H')
+
+    write_files(c_builder.lines, h_builder.lines)