File Source for LFontgen.php

<?php
/**
* Class file.
*
* @license http://opensource.org/licenses/mozilla1.1.php Mozilla Public License
* @copyright 2005, diemeisterei GmbH. All rights reserved.
* @author $Author: schmunk $
* @version $Revision: 236 $ $Date: 2006-05-30 23:39:46 +0200 (Di, 30 Mai 2006) $ $HeadURL: https://svn.sourceforge.net/svnroot/lithron/trunk/packages/LContainer/LBrick.php $
* @package Phundament.Components
* @subpackage WebControls
*/
/**
* LFontgen
*
* Adds the ability to render custom font text images
*
* @package System.Web.UI.WebControls
* @subpackage Graphics
*/
class LFontgen extends TControl
{
private $OutputDir= "";
private $RealOutputDir= "";
private $BinPath= "";
private $HTCUrl= "";
private $FontID;
private $AscenderHeight;
private $DescenderHeight;
private $SpaceWidth;
private $FR= 0;
private $FG= 0;
private $FB= 0;
private $FA= 0;
private $BR= 0;
private $BG= 0;
private $BB= 0;
private $BA= 127;
private $LoadedFonts= array ();
public function getText()
{
return $this->getViewState('Text', '');
}
public function setText($value)
{
$this->setViewState('Text', $value, '');
}
public function getFont()
{
return $this->getViewState('Font', '');
}
public function setFont($value)
{
$this->setViewState('Font', $value, '');
}
public function getFontSize()
{
return $this->getViewState('FontSize', 60);
}
public function setFontSize($value)
{
$this->setViewState('FontSize', $value, 60);
}
public function getLineHeight()
{
return $this->getViewState('LineHeight', $this->getFontSize());
}
public function setLineHeight($value)
{
$this->setViewState('LineHeight', $value, $this->getFontSize());
}
public function getColor()
{
return $this->getViewState('Color', "");
}
public function setColor($value)
{
$this->setViewState('Color', $value, "");
}
public function getBackgroundColor()
{
return $this->getViewState('BackgroundColor', "");
}
public function setBackgroundColor($value)
{
$this->setViewState('BackgroundColor', $value, "");
}
public function getSpace()
{
return $this->getViewState('Space', 0);
}
public function setSpace($value)
{
$this->setViewState('Space', $value, 0);
}
public function getType()
{
return $this->getViewState('Type', 'png');
}
public function setType($value)
{
$this->setViewState('Type', strtolower($value));
}
public function getTightness()
{
return $this->getViewState('Tightness', 0);
}
public function setTightness($value)
{
$this->setViewState('Tightness', $value, 0);
}
public function getAngle()
{
return $this->getViewState('Angle', 0);
}
public function setAngle($value)
{
$this->setViewState('Angle', $value, 0);
}
public function getAASteps()
{
return $this->getViewState('AASteps', 16);
}
public function setAASteps($value)
{
$this->setViewState('AASteps', $value, 16);
}
public function getIEFix()
{
return $this->getViewState('IEFix', 1);
}
public function setIEFix($value)
{
$this->setViewState('IEFix', $value, 1);
}
public function getAdjustBaseline()
{
return $this->getViewState('AdjustBaseline', true);
}
public function setAdjustBaseline($value)
{
$this->setViewState('AdjustBaseline', TPropertyValue :: ensureBoolean($value), true);
}
public function extractColor($colString, & $R, & $G, & $B, & $A)
{
$matches= array ();
$single= true;
preg_match("/^#([0-9A-Fa-f])([0-9A-Fa-f])([0-9A-Fa-f])$/", $colString, $matches);
if (count($matches) == 0)
{
preg_match("/^#([0-9A-Fa-f]{2})([0-9A-Fa-f]{2})([0-9A-Fa-f]{2})$/", $colString, $matches);
$single= false;
}
if (count($matches) == 0)
return false;
$R= hexdec($matches[1]);
$G= hexdec($matches[2]);
$B= hexdec($matches[3]);
$A= 0;
if ($single)
{
$R *= 17;
$G *= 17;
$B *= 17;
}
return true;
}
public function onPreRender($param)
{
parent :: onPreRender($param);
try
{
$this->prepareFont();
}
catch (Exception $e)
{
Prado :: log($e->getMessage(), 8, "Lithron.LFontgen");
}
# only add transparent background behaviour if IEFix is not set
if ($this->getIEFix() == 1)
{
$script= "img {behavior: url(" . $this->publishAsset("LFontgen/iefix.htc") . ")}";
$scriptMgr= $this->getPage()->getClientScript();
$scriptMgr->registerStyleSheet("LFontgenIEFix", $script);
}
}
public function prepareFont()
{
static $loadedFonts;
if (is_file($this->Font))
{
#Prado :: trace("Preparing font (" .
#$this->SkinId . ") ...", "Lithron.LFontGen");
}
else
{
Prado :: log("Font not found (" . $this->Font . ") ...", 16, "Lithron.LFontGen");
return;
}
if (isset($loadedFonts[$this->Font]))
{
$this->FontID= $loadedFonts[$this->Font];
#Prado :: trace("Using static font var ...", "Lithron.LFontGen");
}
else
{
Prado :: trace("Loading font (" . $this->Font . ") ...", "Lithron.LFontGen");
$loadedFonts[$this->Font]= $this->FontID= imagepsloadfont($this->Font);
}
$this->HTCUrl= $this->publishAsset("LFontgen/iefix.htc");
$param= $this->Application->getParameters();
$this->OutputDir= $param->itemAt("OutputDir");
$this->RealOutputDir= realpath($this->OutputDir);
imagepsencodefont($this->FontID, dirname(__FILE__) . '/LFontgen/isolatin1.enc');
list ($lx, $ly, $rx, $ry)= imagepsbbox("A", $this->FontID, $this->getFontSize());
$this->AscenderHeight= $ry - $ly;
list ($lx, $ly, $rx, $ry)= imagepsbbox("g", $this->FontID, $this->getFontSize());
$this->DescenderHeight= - $ly;
$_sw= imagepsbbox("x", $this->FontID, $this->getFontSize());
list ($lx, $ly, $rx, $ry)= $_sw;
$this->SpaceWidth= $rx;
// get color
$fgAvail= $this->extractColor($this->getColor(), $this->FR, $this->FG, $this->FB, $this->FA);
$bgAvail= $this->extractColor($this->getBackgroundColor(), $this->BR, $this->BG, $this->BB, $this->BA);
if (!$bgAvail && $fgAvail)
{
$this->BR= $this->FR;
$this->BG= $this->FG;
$this->BB= $this->FB;
}
#Prado::trace("Font prepared.", "Lithron.LFontGen");
}
public function renderWordGD($word)
{
$id= array ();
$id[]= $word;
$id[]= $this->getFont();
$id[]= $this->getFontSize();
$id[]= $this->getLineHeight();
$id[]= $this->getSpace();
$id[]= $this->getTightness();
$id[]= $this->getAngle();
$id[]= $this->getAASteps();
$id[]= $this->FR;
$id[]= $this->FG;
$id[]= $this->FB;
$id[]= $this->FA;
$id[]= $this->BR;
$id[]= $this->BG;
$id[]= $this->BB;
$id[]= $this->BA;
$hash= md5(implode("|", $id));
$name= $this->OutputDir . "/" . $hash . "." . $this->getType();
$realname= $this->RealOutputDir . "/" . $hash . "." . $this->getType();
if (file_exists($realname))
return $name;
//get the left lower corner and the right upper
list ($lx, $ly, $rx, $ry)= imagepsbbox($word, $this->FontID, $this->getFontSize(), $this->getSpace(), $this->getTightness(), $this->getAngle());
$im= imagecreatetruecolor($rx +1, $this->getLineHeight() + 1);
imagealphablending($im, false);
imagesavealpha($im, true);
$fgcol= imagecolorallocatealpha($im, $this->FR, $this->FG, $this->FB, $this->FA);
$bgcol= imagecolorallocatealpha($im, $this->BR, $this->BG, $this->BB, $this->BA);
imagefill($im, 0, 0, $bgcol);
imagepstext($im, $word, $this->FontID, $this->getFontSize(), $fgcol, $bgcol, 0, $this->getLineHeight() - $this->DescenderHeight, $this->getSpace(), $this->getTightness(), $this->getAngle(), $this->getAASteps());
if ($this->getType() == "jpg")
imagejpeg($im, $realname, 90);
else
imagepng($im, $realname);
imagedestroy($im);
return $name;
}
/**
* Renders body content.
* @param THtmlWriter writer
*/
public function render($writer)
{
//$this->prepareFont();
if (!$this->FontID)
{
Prado :: log("Font rendering aborted.", 8, "Lithron.LFontGen");
return;
}
$text= utf8_decode($this->getText());
$words= split(" ", $text);
foreach ($words as $i => $word)
{
$words[$i]= trim($word);
if ($words[$i] == "")
unset ($words[$i]);
}
foreach ($words as $wnum => $word)
{
try
{
$file= $this->renderWordGD($word);
}
catch (Exception $e)
{
Prado :: log($e->getMessage(), 8, "Lithron.LFontgen");
return;
}
$imgsize= getimagesize($file);
$writer->addAttribute('src', $file);
$writer->addAttribute('width', $imgsize[0]);
$writer->addAttribute('height', $imgsize[1]);
$writer->addAttribute('alt', utf8_encode($word));
$writer->addStyleAttribute('border-width','0px');
$writer->addStyleAttribute('width', $imgsize[0] . "px");
$writer->addStyleAttribute('height', $imgsize[1] . "px");
$writer->addStyleAttribute('background-image', $this->publishAsset("LFontgen/space.gif"));
$writer->addStyleAttribute('background', 'transparent');
#$writer->addStyleAttribute('margin', '0');
if ($wnum < count($words) - 1)
$writer->addStyleAttribute('margin-right', ($this->SpaceWidth + $this->getSpace() - 1) .
'px');
if ($this->getAdjustBaseline())
{
$writer->addStyleAttribute('position', 'relative');
$writer->addStyleAttribute('top', ($this->DescenderHeight + 1) . 'px');
}
$writer->renderBeginTag('img');
$writer->renderEndTag();
}
// not needed ? TODO ?
#Prado::trace("Freeing font (".$this->SkinId.")", "Lithron.LFontgen");
#imagepsfreefont($this->FontID);
}
}
?>

Source for file LFontgen.php