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added class to create gd/ttf buttons

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ceb 2002-08-29 23:20:22 +00:00
parent 9780932675
commit f1119c3860
4 changed files with 214 additions and 97 deletions
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4
phpgwapi/doc/README.fonts Normal file
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The directory phpgwapi/fonts contains fonts which are licensed under the GNU General Public License
and products of the project Free UCS Outline Fonts [http://savannah.gnu.org/projects/freefont].
FreeSans.ttf

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phpgwapi/fonts/FreeSans.ttf Normal file
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210
phpgwapi/inc/class.gdbutton.inc.php Normal file
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<?php
/*******************************************************************\
* phpGroupWare - GD Button *
* http://www.phpgroupware.org *
* *
* Written by by Bettina Gille [ceb@phpgroupware.org] *
* *
* Creates graphical buttons by using GD and TTF fonts *
* Copyright (C) 2002 Bettina Gille *
* ----------------------------------------------------------------- *
* Some methods based on former class.graphics *
* Copyright (C) 2001 Lars Kneschke *
* ----------------------------------------------------------------- *
* This library is part of the phpGroupWare 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 gdbutton
{
var $ttf_font;
var $image;
var $bg_color;
var $font_color;
var $font_size;
var $font_text;
var $filename;
var $url_base;
function gdbutton()
{
$this->image = 0;
$this->font_size = 0;
$this->font_text = '';
$this->ttf_font = PHPGW_SERVER_ROOT . SEP . 'phpgwapi' . SEP . 'fonts' . SEP . 'FreeSans.ttf';
$this->filename = '';
$this->xspace = 4;
$this->yspace = 2;
$this->docroot = $GLOBALS['HTTP_SERVER_VARS']['DOCUMENT_ROOT'];
$this->img_dir = PHPGW_IMAGES_DIR . SEP;
}
function button_init()
{
$this->image = ImageCreate($this->width,$this->height) or die;
ImageColorAllocate($this->image,0x2c,0x6D,0xAF);
return True;
}
function file_name()
{
$this->filename = 'phpgw_button_' . md5($this->font_text) . '.png';
$this->filename = strtolower($this->filename);
return True;
}
function gd_button()
{
if (file_exists(PHPGW_IMAGES_DIR . SEP . $this->filename))
{
return $this->filename;
}
$this->font_size = 5;
$text_width = ImageFontWidth($this->font_size) * strlen($this->font_text);
$text_height = ImageFontHeight($this->font_size);
$this->width = intval($this->xspace + $text_width);
$this->height = intval($this->yspace + $text_height);
$this->xpos = ($this->width/2) - ($text_width/2);
if ($this->xpos < 0)
{
$this->xpos = $this->xspace;
}
$this->ypos = ($this->height/2) - ($text_height/2);
if ($this->ypos < 0)
{
$this->ypos = $this->yspace;
}
$this->button_init();
$black = ImageColorAllocate($this->image, 0,0,0);
ImageRectangle($this->image,0,0,$this->width-1,$this->height-1,$black);
$white = ImageColorAllocate($this->image, 255,255,255);
ImageRectangle($this->image,0,0,$this->width,$this->height,$white);
ImageString($this->image, $this->font_size, intval($this->xpos+1), intval($this->ypos), $this->font_text, $black);
ImageString($this->image, $this->font_size, intval($this->xpos), intval($this->ypos-1), $this->font_text, $white);
return $this->save_button();
}
function ttf_button()
{
if (file_exists(PHPGW_IMAGES_DIR . SEP . $this->filename))
{
return $this->filename;
}
$this->font_size = 11;
$size = imagettfbbox($this->font_size,0,$this->ttf_font,$this->font_text);
$dx = abs($size[2]-$size[0]);
$dy = abs($size[5]-$size[3]);
$xpad = 10;
$ypad = 10;
$this->width = $dx + $xpad;
$this->height = $dy + $xpad;
$this->button_init();
$black = ImageColorAllocate($this->image, 0,0,0);
ImageRectangle($this->image,0,0,$this->width-1,$this->height-1,$black);
$white = ImageColorAllocate($this->image, 255,255,255);
ImageRectangle($this->image,0,0,$this->width,$this->height,$white);
ImageTTFText($this->image, $this->font_size, 0, intval($xpad/2)+1, $dy+intval($ypad/2), -$black, $this->ttf_font, $this->font_text);
ImageTTFText($this->image, $this->font_size, 0, intval($xpad/2), $dy+intval($ypad/2)-1, -$white, $this->ttf_font, $this->font_text);
return $this->save_button();
}
function save_button()
{
ImagePNG($this->image,$this->docroot . $this->img_dir . SEP . $this->filename);
ImageDestroy($this->image);
return $this->filename;
}
function input_button($data)
{
if (is_array($data))
{
$this->font_text = $data['font_text'];
$button_name = $data['button_name'];
}
$this->file_name();
if (extension_loaded('gd') && extension_loaded('ttf'))
{
if (dl('gd.so'))
{
return '<input type="image" src="' . $this->img_dir . $this->ttf_button() . '" border="0" name="' . $button_name . '">';
}
}
elseif(extension_loaded('gd') && !extension_loaded('ttf'))
{
return '<input type="image" src="' . $this->img_dir . $this->gd_button() . '" border="0" name="' . $button_name . '">';
}
else
{
return '<input type="submit" value="' . $this->font_text . '" name="' . $button_name.'">';
}
}
// this function checks, if there is a variable $aaa_x and $aaa_y
// if so, it will create a new variable $aaa
function parseHTTPPostVars()
{
// execute only if libgd support is enabled
if (!extension_loaded('gd'))
{
return;
}
if (is_array($GLOBALS['HTTP_POST_VARS']))
{
while( list($key, $val) = each($GLOBALS['HTTP_POST_VARS']))
{
if (ereg("(.*)_x",$key,$varName) && $HTTP_POST_VARS[$varName[1]."_y"])
{
$name = $varName[1];
global $$name;
$$name = "content generated by parseHTTPPostVars()";
}
}
}
}
}

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phpgwapi/inc/class.graphics.inc.php
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<?php
/**************************************************************************\
* phpGroupWare API - Graphical *
* This file written by Lars Kneschke <knecke@phpgroupware.org> *
* Allows the creation of graphical buttons *
* Copyright (C) 2001 Lars Kneschke *
* -------------------------------------------------------------------------*
* This library is part of the phpGroupWare API *
* http://www.phpgroupware.org/api *
* ------------------------------------------------------------------------ *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, *
* or any later version. *
* This library 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 Lesser General Public License for more details. *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
\**************************************************************************/
/* $Id$ */
class graphics
{
/* put a valid font here */
var $font="/opt/future-project/src/management-server/ttf/arial.ttf";
function createImage($_text, $_fontsize=11)
{
/* create filename */
$filename = 'button_' . md5($_text) . '.png';
$filename = strtolower($filename);
/* see if file exists already, we cache it */
if (file_exists(PHPGW_IMAGES_FILEDIR.'/'.$filename))
{
return $filename;
}
$size = imagettfbbox($_fontsize,0,$this->font,$_text);
$dx = abs($size[2]-$size[0]);
$dy = abs($size[5]-$size[3]);
$xpad=9;
$ypad=9;
$im = imagecreate($dx+$xpad,$dy+$ypad);
$blue = ImageColorAllocate($im, 0x2c,0x6D,0xAF);
$black = ImageColorAllocate($im, 0,0,0);
$white = ImageColorAllocate($im, 255,255,255);
ImageRectangle($im,0,0,$dx+$xpad-1,$dy+$ypad-1,$black);
ImageRectangle($im,0,0,$dx+$xpad,$dy+$ypad,$white);
ImageTTFText($im, $_fontsize, 0, (int)($xpad/2)+1, $dy+(int)($ypad/2), -$black, $this->font, $_text);
ImageTTFText($im, $_fontsize, 0, (int)($xpad/2), $dy+(int)($ypad/2)-1, -$white, $this->font, $_text);
ImagePNG($im,PHPGW_IMAGES_FILEDIR.'/'.$filename);
ImageDestroy($im);
return $filename;
}
function createInputButton($_text, $_name, $_mode='graphic')
{
if ($_mode == 'graphic' && extension_loaded('gd'))
{
return '<input type="image" src="/phpgroupware/phpgwapi/templates/default/images/'.$this->createImage($_text).'" border="0" name="'.$_name.'">';
}
else
{
return '<input type="submit" value="'.$_text.'" name="'.$_name.'">';
}
}
// this function checks, if there is a variable $aaa_x and $aaa_y
// if so, it will create a new variable $aaa
function parseHTTPPostVars()
{
// execute only if libgd support is enabled
if (!extension_loaded('gd'))
{
return;
}
if (is_array($GLOBALS['HTTP_POST_VARS']))
{
while( list($key, $val) = each($GLOBALS['HTTP_POST_VARS']))
{
if (ereg("(.*)_x",$key,$varName) && $HTTP_POST_VARS[$varName[1]."_y"])
{
$name = $varName[1];
global $$name;
$$name = "content generated by parseHTTPPostVars()";
}
}
}
}
}