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SVG Schema Class

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This commit is contained in:
Adnan
2010-07-08 12:05:52 +05:00
parent 39db171819
commit cd41a8dc28
1 changed files with 662 additions and 106 deletions
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768
libraries/schema/Svg_Relation_Schema.class.php
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@@ -1,127 +1,683 @@
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
*
* @version $Id$
* @package phpMyAdmin
*/
include_once("Export_Relation_Schema.class.php");
/**
* This Class inherits the XMLwriter class and
* helps in developing structure of SVG Schema
*
*
* @name PMA_SVG
* @author Muhammad Adnan <hiddenpearls@gmail.com>
* @copyright
* @license
* @see http://php.net/manual/en/book.xmlwriter.php
*/
class PMA_SVG extends XMLWriter
{
public $title;
public $author;
public $font;
public $fontSize;
function __construct()
{
//$writer = new XMLWriter();
$this->openMemory();
/* Set indenting using three spaces, so output is formatted */
$this->setIndent(TRUE);
$this->setIndentString(' ');
/* Create the XML document */
$this->startDocument('1.0','UTF-8');
$this->startDtd('svg','-//W3C//DTD SVG 1.1//EN','http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd');
$this->endDtd();
}
function setTitle($title)
{
$this->title=$title;
}
function setAuthor($author)
{
$this->author=$author;
}
function setFont($font)
{
$this->font=$font;
}
function setFontSize($fontSize)
{
$this->fontSize=$fontSize;
}
function startSvgDoc($width,$height)
{
public $title;
public $author;
public $font;
public $fontSize;
$this->startElement('svg');
$this->writeAttribute('width', $width);
$this->writeAttribute('height', $height);
$this->writeAttribute('xmlns', 'http://www.w3.org/2000/svg');
$this->writeAttribute('version', '1.1');
}
function endSvgDoc()
{
function __construct()
{
$this->openMemory();
/*
* Set indenting using three spaces,
* so output is formatted
*/
$this->endElement();
$this->endDocument();
}
function showOutput()
{
$this->setIndent(TRUE);
$this->setIndentString(' ');
/*
* Create the XML document
*/
header('Content-type: image/svg+xml');
$output = $this->flush();
print $output;
}
function printElement($name,$x,$y,$width='',$height='',$text='',$styles='')
{
$this->startDocument('1.0','UTF-8');
$this->startDtd('svg','-//W3C//DTD SVG 1.1//EN','http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd');
$this->endDtd();
}
$this->startElement($name);
$this->writeAttribute('width',$width);
$this->writeAttribute('height',$height);
$this->writeAttribute('x', $x);
$this->writeAttribute('y', $y);
$this->writeAttribute('style', $styles);
if(isset($text)){
$this->writeAttribute('font-family', $this->font);
$this->writeAttribute('font-size', $this->fontSize);
$this->text($text);
}
$this->endElement();
}
function setTitle($title)
{
$this->title=$title;
}
function setAuthor($author)
{
$this->author=$author;
}
function setFont($font)
{
$this->font=$font;
}
function getFont()
{
return $this->font;
}
function setFontSize($fontSize)
{
$this->fontSize=$fontSize;
}
function getFontSize()
{
return $this->fontSize;
}
function startSvgDoc($width,$height)
{
$this->startElement('svg');
$this->writeAttribute('width', $width);
$this->writeAttribute('height', $height);
$this->writeAttribute('xmlns', 'http://www.w3.org/2000/svg');
$this->writeAttribute('version', '1.1');
}
function endSvgDoc()
{
$this->endElement();
$this->endDocument();
}
function showOutput()
{
if(ob_end_clean()){
ob_end_clean();
//ob_start();
}
header('Content-type: image/svg+xml');
$output = $this->flush();
print $output;
}
function printElement($name,$x,$y,$width='',$height='',$text='',$styles='')
{
$this->startElement($name);
$this->writeAttribute('width',$width);
$this->writeAttribute('height',$height);
$this->writeAttribute('x', $x);
$this->writeAttribute('y', $y);
$this->writeAttribute('style', $styles);
if(isset($text)){
$this->writeAttribute('font-family', $this->font);
$this->writeAttribute('font-size', $this->fontSize);
$this->text($text);
}
$this->endElement();
}
function printElementLine($name,$x1,$y1,$x2,$y2,$styles)
{
$this->startElement($name);
$this->writeAttribute('x1',$x1);
$this->writeAttribute('y1',$y1);
$this->writeAttribute('x2', $x2);
$this->writeAttribute('y2', $y2);
$this->writeAttribute('style', $styles);
$this->endElement();
}
function getStringWidth($text,$font,$fontSize)
{
/*
* Start by counting the width, giving each character a modifying value
*/
$count = 0;
$count = $count + ((strlen($text) - strlen(str_replace(array("i","j","l"),"",$text)))*0.23);//ijl
$count = $count + ((strlen($text) - strlen(str_replace(array("f"),"",$text)))*0.27);//f
$count = $count + ((strlen($text) - strlen(str_replace(array("t","I"),"",$text)))*0.28);//tI
$count = $count + ((strlen($text) - strlen(str_replace(array("r"),"",$text)))*0.34);//r
$count = $count + ((strlen($text) - strlen(str_replace(array("1"),"",$text)))*0.49);//1
$count = $count + ((strlen($text) - strlen(str_replace(array("c","k","s","v","x","y","z","J"),"",$text)))*0.5);//cksvxyzJ
$count = $count + ((strlen($text) - strlen(str_replace(array("a","b","d","e","g","h","n","o","p","q","u","L","0","2","3","4","5","6","7","8","9"),"",$text)))*0.56);//abdeghnopquL023456789
$count = $count + ((strlen($text) - strlen(str_replace(array("F","T","Z"),"",$text)))*0.61);//FTZ
$count = $count + ((strlen($text) - strlen(str_replace(array("A","B","E","K","P","S","V","X","Y"),"",$text)))*0.67);//ABEKPSVXY
$count = $count + ((strlen($text) - strlen(str_replace(array("w","C","D","H","N","R","U"),"",$text)))*0.73);//wCDHNRU
$count = $count + ((strlen($text) - strlen(str_replace(array("G","O","Q"),"",$text)))*0.78);//GOQ
$count = $count + ((strlen($text) - strlen(str_replace(array("m","M"),"",$text)))*0.84);//mM
$count = $count + ((strlen($text) - strlen(str_replace("W","",$text)))*.95);//W
$count = $count + ((strlen($text) - strlen(str_replace(" ","",$text)))*.28);//" "
$text = str_replace(" ","",$text);//remove the " "'s
$count = $count + (strlen(preg_replace("/[a-z0-9]/i","",$text))*0.3); //all other chrs
$modifier = 1;
$font = strtolower($font);
switch($font){
/*
* no modifier for arial and sans-serif
*/
case 'arial':
case 'sans-serif':
break;
/*
* .92 modifer for time, serif, brushscriptstd, and californian fb
*/
case 'times':
case 'serif':
case 'brushscriptstd':
case 'californian fb':
$modifier = .92;
break;
/*
* 1.23 modifier for broadway
*/
case 'broadway':
$modifier = 1.23;
break;
}
$textWidth = $count*$fontSize;
return ceil($textWidth*$modifier);
}
}
/**
* Draws tables schema
*/
class Table_Stats {
/**
* Defines properties
*/
private $_tableName;
private $_showInfo = false;
public $width = 0;
public $height;
public $fields = array();
public $heightCell = 0;
public $x, $y;
public $primary = array();
/**
* The "Table_Stats" constructor
*
* @param string table_name The table name
* @param integer ff The font size
* @param integer samewidth The max. with among tables
* @param boolean show_keys Whether to display keys or not
* @param boolean show_info Whether to display table position or not
* @global object The current SVG image document
* @global integer The current page number (from the
* $cfg['Servers'][$i]['table_coords'] table)
* @global array The relations settings
* @global string The current db name
* @access private
* @see PMA_PDF, Table_Stats::Table_Stats_setWidth,
Table_Stats::Table_Stats_setHeight
*/
function __construct($tableName, $font, $fontSize, &$same_wide_width, $showKeys = false, $showInfo = false)
{
global $svg, $pdf_page_number, $cfgRelation, $db;
$this->_tableName = $tableName;
$sql = 'DESCRIBE ' . PMA_backquote($tableName);
$result = PMA_DBI_try_query($sql, null, PMA_DBI_QUERY_STORE);
if (!$result || !PMA_DBI_num_rows($result)) {
$svg->dieSchema(sprintf(__('The %s table doesn\'t exist!'), $tableName));
}
/*
* load fields
* check to see if it will load all fields or only the foreign keys
*/
if ($showKeys) {
$indexes = PMA_Index::getFromTable($this->_tableName, $db);
$all_columns = array();
foreach ($indexes as $index) {
$all_columns = array_merge($all_columns, array_flip(array_keys($index->getColumns())));
}
$this->fields = array_keys($all_columns);
} else {
while ($row = PMA_DBI_fetch_row($result)) {
$this->fields[] = $row[0];
}
}
$this->_showInfo = $showInfo;
// height and width
$this->_setHeightTable($fontSize);
// setWidth must me after setHeight, because title
// can include table height which changes table width
$this->_setWidthTable($font,$fontSize);
if ($same_wide_width < $this->width) {
$same_wide_width = $this->width;
}
// x and y
$sql = 'SELECT x, y FROM '
. PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['table_coords'])
. ' WHERE db_name = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND table_name = \'' . PMA_sqlAddslashes($tableName) . '\''
. ' AND pdf_page_number = ' . $pdf_page_number;
$result = PMA_query_as_controluser($sql, false, PMA_DBI_QUERY_STORE);
if (!$result || !PMA_DBI_num_rows($result)) {
//$svg->dieSchema(sprintf(__('Please configure the coordinates for table %s'), $tableName));
}
list($this->x, $this->y) = PMA_DBI_fetch_row($result);
$this->x = (double) $this->x;
$this->y = (double) $this->y;
// displayfield
$this->displayfield = PMA_getDisplayField($db, $tableName);
// index
$result = PMA_DBI_query('SHOW INDEX FROM ' . PMA_backquote($tableName) . ';', null, PMA_DBI_QUERY_STORE);
if (PMA_DBI_num_rows($result) > 0) {
while ($row = PMA_DBI_fetch_assoc($result)) {
if ($row['Key_name'] == 'PRIMARY') {
$this->primary[] = $row['Column_name'];
}
}
}
}
/**
* Returns title of the current table,
* title can have the dimensions/co-ordinates of the table
*
* @access private
*/
function _getTitle()
{
return ($this->_showInfo ? sprintf('%.0f', $this->width) . 'x' . sprintf('%.0f', $this->heightCell) : '') . ' ' . $this->_tableName;
}
/**
* Sets the width of the table
*
* @param string font The font size
* @param integer fontSize The font size
* @global object The current SVG image document
* @access private
* @see PMA_SVG
*/
function _setWidthTable($font,$fontSize)
{
global $svg;
foreach ($this->fields as $field) {
$this->width = max($this->width, $svg->getStringWidth($field,$font,$fontSize));
}
$this->width += $svg->getStringWidth(' ',$font,$fontSize);
/*
* it is unknown what value must be added, because
* table title is affected by the tabe width value
*/
while ($this->width < $svg->GetStringWidth($this->_getTitle(),$font,$fontSize)) {
$this->width += 7;
}
}
/**
* Sets the height of the table
*
* @access private
*/
function _setHeightTable($fontSize)
{
$this->heightCell = $fontSize + 4;
$this->height = (count($this->fields) + 1) * $this->heightCell;
}
/**
* draw the table
*
* @param boolean showColor Whether to display color
* @global object The current SVG image document
* @access public
* @see PMA_SVG,PMA_SVG::printElement
*/
public function tableDraw($showColor)
{
global $svg;
//echo $this->_tableName.'<br />';
$svg->printElement('rect',$this->x,$this->y,
$this->width,$this->heightCell,
NULL,'fill:red;stroke:black;'
);
$svg->printElement('text',$this->x + 5,$this->y+ 14,
$this->width,$this->heightCell,
$this->_getTitle(),
'fill:none;stroke:black;'
);
foreach ($this->fields as $field) {
$currentCell+=$this->heightCell;
$showColor='none';
if ($showColor) {
if (in_array($field, $this->primary)) {
$showColor='#0c0';
}
if ($field == $this->displayfield) {
$showColor='none';
}
}
$svg->printElement('rect', $this->x,$this->y + $currentCell,
$this->width, $this->heightCell,
NULL,
'fill:'.$showColor.';stroke:black;'
);
$svg->printElement('text', $this->x + 5, $this->y + 14 + $currentCell,
$this->width, $this->heightCell,
$field,
'fill:none;stroke:black;'
);
//echo $field.'<br />';
}
}
}
/**
* Draws relation links
*
* @access public
* @see PMA_SVG,PMA_SVG::printElementLine
*/
class Relation_Stats {
/**
* Defines properties
*/
public $xSrc, $ySrc;
public $srcDir ;
public $destDir;
public $xDest, $yDest;
public $wTick = 10;
/**
* The "Relation_Stats" constructor
*
* @param string master_table The master table name
* @param string master_field The relation field in the master table
* @param string foreign_table The foreign table name
* @param string foreigh_field The relation field in the foreign table
* @access private
* @see Relation_Stats::_getXy
*/
function __construct($master_table, $master_field, $foreign_table, $foreign_field)
{
$src_pos = $this->_getXy($master_table, $master_field);
$dest_pos = $this->_getXy($foreign_table, $foreign_field);
/*
* [0] is x-left
* [1] is x-right
* [2] is y
*/
$src_left = $src_pos[0] - $this->wTick;
$src_right = $src_pos[1] + $this->wTick;
$dest_left = $dest_pos[0] - $this->wTick;
$dest_right = $dest_pos[1] + $this->wTick;
$d1 = abs($src_left - $dest_left);
$d2 = abs($src_right - $dest_left);
$d3 = abs($src_left - $dest_right);
$d4 = abs($src_right - $dest_right);
$d = min($d1, $d2, $d3, $d4);
if ($d == $d1) {
$this->xSrc = $src_pos[0];
$this->srcDir = -1;
$this->xDest = $dest_pos[0];
$this->destDir = -1;
} elseif ($d == $d2) {
$this->xSrc = $src_pos[1];
$this->srcDir = 1;
$this->xDest = $dest_pos[0];
$this->destDir = -1;
} elseif ($d == $d3) {
$this->xSrc = $src_pos[0];
$this->srcDir = -1;
$this->xDest = $dest_pos[1];
$this->destDir = 1;
} else {
$this->xSrc = $src_pos[1];
$this->srcDir = 1;
$this->xDest = $dest_pos[1];
$this->destDir = 1;
}
$this->ySrc = $src_pos[2];
$this->y_dest = $dest_pos[2];
}
/**
* Gets arrows coordinates
*
* @param string table The current table name
* @param string column The relation column name
* @return array Arrows coordinates
* @access private
*/
function _getXy($table, $column)
{
$pos = array_search($column, $table->fields);
// x_left, x_right, y
return array($table->x, $table->x + $table->width, $table->y + ($pos + 1.5) * $table->heightCell);
}
/**
* draws relation links and arrows
* shows foreign key relations
*
* @param boolean changeColor Whether to use one color per relation or not
* @global object The current SVG image document
* @access public
* @see PMA_SVG
*/
public function relationDraw($changeColor)
{
global $svg;
if ($changeColor) {
$listOfColors=array(
'red',
'grey',
'black',
'yellow',
'green',
'cyan',
' orange'
);
shuffle($listOfColors);
$color = $listOfColors[0];
} else {
$color = 'black';
}
$svg->printElementLine('line',$this->xSrc,$this->ySrc,
$this->xSrc + $this->srcDir * $this->wTick,$this->ySrc,
'fill:'.$color.';stroke:black;stroke-width:2;'
);
$svg->printElementLine('line',$this->xDest + $this->destDir * $this->wTick, $this->y_dest,
$this->xDest, $this->y_dest,
'fill:'.$color.';stroke:black;stroke-width:2;'
);
$svg->printElementLine('line',$this->xSrc + $this->srcDir * $this->wTick,$this->ySrc,
$this->xDest + $this->destDir * $this->wTick, $this->y_dest,
'fill:'.$color.';stroke:'.$color.';stroke-width:1;'
);
$root2 = 2 * sqrt(2);
$svg->printElementLine('line',$this->xSrc + $this->srcDir * $this->wTick * 0.75, $this->ySrc,
$this->xSrc + $this->srcDir * (0.75 - 1 / $root2) * $this->wTick ,
$this->ySrc + $this->wTick / $root2 ,
'fill:'.$color.';stroke:black;stroke-width:2;'
);
$svg->printElementLine('line',$this->xSrc + $this->srcDir * $this->wTick * 0.75, $this->ySrc,
$this->xSrc + $this->srcDir * (0.75 - 1 / $root2) * $this->wTick ,
$this->ySrc - $this->wTick / $root2 ,
'fill:'.$color.';stroke:black;stroke-width:2;'
);
$svg->printElementLine('line',$this->xDest + $this->destDir * $this->wTick / 2 , $this->y_dest ,
$this->xDest + $this->destDir * (0.5 + 1 / $root2) * $this->wTick,
$this->y_dest + $this->wTick / $root2 ,
'fill:'.$color.';stroke:black;stroke-width:2;');
$svg->printElementLine('line',$this->xDest + $this->destDir * $this->wTick / 2 ,
$this->y_dest , $this->xDest + $this->destDir * (0.5 + 1 / $root2) * $this->wTick ,
$this->y_dest - $this->wTick / $root2 ,
'fill:'.$color.';stroke:black;stroke-width:2;'
);
}
}
/*
* end of the "Relation_Stats" class
*/
class PMA_Svg_Relation_Schema extends PMA_Export_Relation_Schema
{
function __construct($page_number, $show_info = 0, $change_color = 0, $all_table_same_wide = 0, $show_keys = 0)
{
//global $pdf, $db, $cfgRelation, $with_doc;
global $db,$writer;
$svg = new PMA_SVG();
private $tables = array();
private $_relations = array();
private $_xMax = 0;
private $_yMax = 0;
private $scale;
private $_xMin = 100000;
private $_yMin = 100000;
private $t_marg = 10;
private $b_marg = 10;
private $l_marg = 10;
private $r_marg = 10;
private $_tablewidth;
function __construct()
{
global $svg,$db,$pdf_page_number,$show_info,$show_table_dimension,$show_color,$change_color,$all_table_same_wide;
$pdf_page_number = isset($pdf_page_number) ? $pdf_page_number : 1;
$show_info = (isset($show_table_dimension) && $show_table_dimension == 'on') ? 1 : 0;
$all_table_same_wide = (isset($all_table_same_wide) && $all_table_same_wide == 'on') ? 1 : 0;
$change_color = (isset($show_color) && $show_color == 'on') ? 1 : 0;
$show_keys = (isset($show_keys) && $show_keys == 'on') ? 1 : 0;
$svg = new PMA_SVG();
$this->setSameWidthTables($all_table_same_wide);
$svg->setTitle(sprintf(__('Schema of the %s database - Page %s'), $db, $page_number));
$svg->SetAuthor('phpMyAdmin ' . PMA_VERSION);
$svg->setFont('Arial');
$svg->setFontSize('16px');
$svg->startSvgDoc('500px','500px');
$svg->printElement('rect',0,0,'100','100',NULL,'fill:none;stroke:black;');
$svg->printElement('text',100,100,'100','100','this is just a test');
$svg->endSvgDoc();
$svg->showOutput();
//echo $svg->getTitle();
/* $alltables=$this->getAllTables($db,$page_number);
foreach ($alltables AS $table) {
$svg->setTitle(sprintf(__('Schema of the %s database - Page %s'), $db, $pdf_page_number));
$svg->SetAuthor('phpMyAdmin ' . PMA_VERSION);
$svg->setFont('Arial');
$svg->setFontSize('16px');
$svg->startSvgDoc('1000px','600px');
$alltables=$this->getAllTables($db,$pdf_page_number);
foreach ($alltables AS $table) {
if (!isset($this->tables[$table])) {
$this->tables[$table] = new PMA_RT_Table($table, $this->ff, $this->_tablewidth, $show_keys, $show_info);
// $this->tables[$table]=$table;
$this->tables[$table] = new Table_Stats($table,$svg->getFont(),$svg->getFontSize(), $this->_tablewidth, $show_keys, $show_info);
}
if ($this->same_wide) {
if ($this->sameWide) {
$this->tables[$table]->width = $this->_tablewidth;
}
$this->PMA_RT_setMinMax($this->tables[$table]);
}*/
/* print '<pre>';
print_r(get_object_vars($svg));
print_r($this);
print '</pre>';
exit();*/
}
$this->_setMinMax($this->tables[$table]);
}
$seen_a_relation = false;
foreach ($alltables as $one_table) {
$exist_rel = PMA_getForeigners($db, $one_table, '', 'both');
if ($exist_rel) {
$seen_a_relation = true;
foreach ($exist_rel as $master_field => $rel) {
/* put the foreign table on the schema only if selected
* by the user
* (do not use array_search() because we would have to
* to do a === FALSE and this is not PHP3 compatible)
*/
if (in_array($rel['foreign_table'], $alltables)) {
$this->_addRelation($one_table,$svg->getFont(),$svg->getFontSize(), $master_field, $rel['foreign_table'], $rel['foreign_field'], $show_info);
}
}
}
}
if ($seen_a_relation) {
$this->_drawRelations($change_color);
}
$this->_drawTables($change_color);
$svg->endSvgDoc();
$svg->showOutput();
// print '<pre>';
//print_r(get_object_vars($svg));
//print_r($alltables);
//print_r($this);
//print '</pre>';
//exit();
}
/**
* Sets X and Y minimum and maximum for a table cell
*
* @param string table The table name
* @access private
*/
function _setMinMax($table)
{
$this->_xMax = max($this->_xMax, $table->x + $table->width);
$this->_yMax = max($this->_yMax, $table->y + $table->height);
$this->_xMin = min($this->_xMin, $table->x);
$this->_yMin = min($this->_yMin, $table->y);
}
/**
* Defines relation objects
*
* @param string masterTable The master table name
* @param string masterField The relation field in the master table
* @param string foreignTable The foreign table name
* @param string foreignField The relation field in the foreign table
* @param boolean showInfo Whether to display table position or not
* @access private
* @see _setMinMax,Table_Stats::__construct(),Relation_Stats::__construct()
*/
function _addRelation($masterTable,$font,$fontSize, $masterField, $foreignTable, $foreignField, $showInfo)
{
if (!isset($this->tables[$masterTable])) {
$this->tables[$masterTable] = new Table_Stats($masterTable,$font,$fontSize, $this->_tablewidth, false, $showInfo);
$this->_setMinMax($this->tables[$masterTable]);
}
if (!isset($this->tables[$foreignTable])) {
$this->tables[$foreignTable] = new Table_Stats($foreignTable,$font,$fontSize, $this->_tablewidth, false, $showInfo);
$this->_setMinMax($this->tables[$foreignTable]);
}
$this->_relations[] = new Relation_Stats($this->tables[$masterTable], $masterField, $this->tables[$foreignTable], $foreignField);
}
/**
* Draws relation arrows and lines
* connects master table's master field to
* foreign table's forein field
*
* @param boolean changeColor Whether to use one color per relation or not
* @access private
* @see Relation_Stats::relationDraw()
*/
private function _drawRelations($changeColor)
{
foreach ($this->_relations as $relation) {
$relation->relationDraw($changeColor);
}
}
/**
* Draws tables
*
* @param boolean showColor Whether to show color for primary fields or not
* @access private
* @see Table_Stats::Table_Stats_tableDraw()
*/
private function _drawTables($changeColor)
{
global $svg;
foreach ($this->tables as $table) {
$table->tableDraw($changeColor);
}
}
}
?>