mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-26 09:53:20 +01:00
326 lines
7.4 KiB
PHP
326 lines
7.4 KiB
PHP
<?php
|
|
/*******************************************************************\
|
|
* eGroupWare - GD Image *
|
|
* http://www.egroupware.org *
|
|
* *
|
|
* Written by by Bettina Gille [ceb@phpgroupware.org] *
|
|
* *
|
|
* Creates images using GD graphics library *
|
|
* Copyright (C) 2003 Free Software Foundation, Inc *
|
|
* ----------------------------------------------------------------- *
|
|
* This class based on htmlGD.php3 *
|
|
* Double Choco Latte - Source Configuration Management System *
|
|
* Copyright (C) 1999 Michael L. Dean & Tim R. Norman *
|
|
* ----------------------------------------------------------------- *
|
|
* This library is part of the eGroupWare API *
|
|
* ----------------------------------------------------------------- *
|
|
* This library 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 2 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, write to the Free Software *
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
|
|
\*******************************************************************/
|
|
/* $Id$ */
|
|
|
|
class gdimage
|
|
{
|
|
var $filename;
|
|
var $type;
|
|
var $cur_x;
|
|
var $cur_y;
|
|
var $width;
|
|
var $height;
|
|
var $hImage;
|
|
var $colormap;
|
|
var $hColor;
|
|
var $font;
|
|
|
|
function gdimage()
|
|
{
|
|
$this->gd = $this->check_gd();
|
|
|
|
if ($this->gd == 0)
|
|
{
|
|
echo 'Your PHP installation does not seem to have the required GD library.
|
|
Please see the PHP documentation on how to install and enable the GD library.';
|
|
exit;
|
|
}
|
|
|
|
$this->cur_x = 0;
|
|
$this->cur_y = 0;
|
|
$this->width = 0;
|
|
$this->height = 0;
|
|
$this->hImage = 0;
|
|
$this->colormap = array();
|
|
$this->hColor = 0;
|
|
$this->font = 0;
|
|
$this->type = 'png';
|
|
$this->temp_file = PHPGW_SERVER_ROOT . SEP . 'phpgwapi' . SEP . 'images' . SEP . 'draw_tmp.png';
|
|
}
|
|
|
|
function check_gd()
|
|
{
|
|
ob_start();
|
|
phpinfo(8); // Just get the modules loaded
|
|
$a = ob_get_contents();
|
|
ob_end_clean();
|
|
|
|
if(preg_match('/.*GD Version.*(1[0-9|\.]+).*/',$a,$m))
|
|
{
|
|
$r=1; //$v=$m[1];
|
|
}
|
|
elseif(preg_match('/.*GD Version.*(2[0-9|\.]+).*/',$a,$m))
|
|
{
|
|
$r=2; //$v=$m[1];
|
|
}
|
|
else
|
|
{
|
|
$r=0; //$v=$m[1];
|
|
}
|
|
return $r;
|
|
}
|
|
|
|
function Init()
|
|
{
|
|
$this->hImage = ImageCreate($this->width, $this->height) or die;
|
|
return True;
|
|
}
|
|
|
|
function Done()
|
|
{
|
|
ImageDestroy($this->hImage);
|
|
}
|
|
|
|
function MoveTo($x, $y)
|
|
{
|
|
if ($x >= 0 && $x <= $this->width && $y >= 0 && $y <= $this->height)
|
|
{
|
|
$this->cur_x = $x;
|
|
$this->cur_y = $y;
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function LineTo($x, $y, $linestyle = 'solid')
|
|
{
|
|
if ($x >= 0 && $x <= $this->width && $y >= 0 && $y <= $this->height)
|
|
{
|
|
if ($linestyle == 'dashed')
|
|
{
|
|
ImageDashedLine($this->hImage, $this->cur_x, $this->cur_y, $x, $y, $this->hColor);
|
|
}
|
|
else
|
|
{
|
|
ImageLine($this->hImage, $this->cur_x, $this->cur_y, $x, $y, $this->hColor);
|
|
}
|
|
|
|
$this->cur_x = $x;
|
|
$this->cur_y = $y;
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function Line($x1, $y1, $x2, $y2, $linestyle = 'solid')
|
|
{
|
|
if ($x1 >= 0 && $x1 <= $this->width && $y1 >= 0 && $y1 <= $this->height && $x2 >= 0 && $x2 <= $this->width && $y2 >= 0 && $y2 <= $this->height)
|
|
{
|
|
if ($linestyle == 'solid')
|
|
{
|
|
ImageLine($this->hImage, $x1, $y1, $x2, $y2, $this->hColor);
|
|
}
|
|
else
|
|
{
|
|
ImageDashedLine($this->hImage, $x1, $y1, $x2, $y2, $this->hColor);
|
|
}
|
|
|
|
$this->cur_x = $x2;
|
|
$this->cur_y = $y2;
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function SetColor($r, $g, $b, $set_transparent=False)
|
|
{
|
|
$key = "$r,$g,$b";
|
|
if (!IsSet($this->colormap[$key]))
|
|
{
|
|
$this->hColor = ImageColorAllocate($this->hImage, $r, $g, $b);
|
|
$this->colormap[$key] = $this->hColor;
|
|
}
|
|
else
|
|
{
|
|
$this->hColor = $this->colormap[$key];
|
|
}
|
|
if ($set_transparent)
|
|
{
|
|
ImageColorTransparent($this->hImage,$this->hColor);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function SetColorByName($name)
|
|
{
|
|
$r = 0;
|
|
$g = 0;
|
|
$b = 0;
|
|
switch ($name)
|
|
{
|
|
case 'red':
|
|
$r = 180;
|
|
break;
|
|
case 'green':
|
|
$g = 180;
|
|
break;
|
|
case 'blue':
|
|
$b = 180;
|
|
break;
|
|
case 'bright red':
|
|
$r = 255;
|
|
break;
|
|
case 'bright green':
|
|
$g = 255;
|
|
break;
|
|
case 'bright blue':
|
|
$b = 255;
|
|
break;
|
|
case 'dark red':
|
|
$r = 80;
|
|
break;
|
|
case 'dark green':
|
|
$g = 80;
|
|
break;
|
|
case 'dark blue':
|
|
$b = 80;
|
|
break;
|
|
case 'yellow':
|
|
$r = 255;
|
|
$g = 215;
|
|
break;
|
|
}
|
|
|
|
return $this->SetColor($r, $g, $b);
|
|
}
|
|
|
|
function SetFont($font)
|
|
{
|
|
if ($font < 1 || $font > 5)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
$this->font = $font;
|
|
|
|
return true;
|
|
}
|
|
|
|
function GetFontHeight()
|
|
{
|
|
return ImageFontHeight($this->font);
|
|
}
|
|
|
|
function GetFontWidth()
|
|
{
|
|
return ImageFontWidth($this->font);
|
|
}
|
|
|
|
function DrawText($params)
|
|
{
|
|
$text = $params['text'];
|
|
$direction = (isset($params['direction'])?$params['direction']:'');
|
|
$justification = (isset($params['justification'])?$params['justification']:'center');
|
|
$margin_left = (isset($params['margin_left'])?$params['margin_left']:'');
|
|
|
|
$textwidth = ImageFontWidth($this->font) * strlen($text);
|
|
|
|
/*if (isset($margin_left) && $textwidth >= $margin_left)
|
|
{
|
|
$text = strlen($text) - 1 . '.';
|
|
}*/
|
|
|
|
if ($justification == 'center')
|
|
{
|
|
if ($direction == 'up')
|
|
{
|
|
$this->cur_y += $textwidth / 2;
|
|
if ($this->cur_y > $this->height)
|
|
{
|
|
$this->cur_y = $this->height;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$this->cur_x -= $textwidth / 2;
|
|
if ($this->cur_x < 0)
|
|
{
|
|
$this->cur_x = 0;
|
|
}
|
|
}
|
|
}
|
|
elseif ($justification == 'right')
|
|
{
|
|
if ($direction == 'up')
|
|
{
|
|
$this->cur_y += $textwidth;
|
|
if ($this->cur_y > $this->height)
|
|
{
|
|
$this->cur_y = $this->height;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$this->cur_x -= $textwidth;
|
|
if ($this->cur_x < 0)
|
|
{
|
|
$this->cur_x = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($direction == 'up')
|
|
{
|
|
ImageStringUp($this->hImage, $this->font, $this->cur_x, $this->cur_y, $text, $this->hColor);
|
|
}
|
|
else
|
|
{
|
|
ImageString($this->hImage, $this->font, $this->cur_x, $this->cur_y, $text, $this->hColor);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function ToBrowser()
|
|
{
|
|
//header('Content-type: image/' . $this->type);
|
|
switch ($this->type)
|
|
{
|
|
case 'png':
|
|
ImagePNG($this->hImage,$this->temp_file);
|
|
break;
|
|
case 'gif':
|
|
ImageGIF($this->hImage);
|
|
break;
|
|
case 'jpeg':
|
|
ImageJPEG($this->hImage);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
?>
|