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<?php
if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
/*********************************************************************************
* SugarCRM Community Edition is a customer relationship management program developed by
* SugarCRM, Inc. Copyright (C) 2004-2012 SugarCRM Inc.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU Affero General Public License version 3 as published by the
* Free Software Foundation with the addition of the following permission added
* to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
* IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
* OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* 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 Affero General Public License for more
* details.
*
* You should have received a copy of the GNU Affero General Public License along with
* this program; if not, see http://www.gnu.org/licenses or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*
* You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
* SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License version 3.
*
* In accordance with Section 7(b) of the GNU Affero General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* SugarCRM" logo. If the display of the logo is not reasonably feasible for
* technical reasons, the Appropriate Legal Notices must display the words
* "Powered by SugarCRM".
********************************************************************************/
require_once("include/SugarTheme/cssmin.php");
class SugarSpriteBuilder
{
var $isAvailable = false;
var $silentRun = false;
var $fromSilentUpgrade = false;
var $writeToUpgradeLog = false;
var $debug = false;
var $fileName = 'sprites';
var $cssMinify = true;
// class supported image types
var $supportedTypeMap = array(
IMG_GIF => IMAGETYPE_GIF,
IMG_JPG => IMAGETYPE_JPEG,
IMG_PNG => IMAGETYPE_PNG,
);
// sprite settings
var $pngCompression = 9;
var $pngFilter = PNG_NO_FILTER;
var $maxWidth = 75;
var $maxHeight = 75;
var $rowCnt = 30;
// processed image types
var $imageTypes = array();
// source files
var $spriteSrc = array();
var $spriteRepeat = array();
// sprite resource images
var $spriteImg;
// sprite_config collection
var $sprites_config = array();
public function __construct()
{
// check if we have gd installed
if(function_exists('imagecreatetruecolor'))
{
$this->isAvailable = true;
foreach($this->supportedTypeMap as $gd_bit => $imagetype)
{
if(imagetypes() & $gd_bit) {
// swap gd_bit & imagetype
$this->imageTypes[$imagetype] = $gd_bit;
}
}
}
if(function_exists('logThis') && isset($GLOBALS['path']))
{
$this->writeToUpgradeLog = true;
}
}
/**
* addDirectory
*
* This function is used to create the spriteSrc array
* @param $name String value of the sprite name
* @param $dir String value of the directory associated with the sprite entry
*/
public function addDirectory($name, $dir) {
// sprite namespace
if(!array_key_exists($name, $this->spriteSrc))
{
$this->spriteSrc[$name] = array();
}
// add files from directory
$this->spriteSrc[$name][$dir] = $this->getFileList($dir);
}
/**
* getFileList
*
* This method processes files in a directory and adds them to the sprites array
* @param $dir String value of the directory to scan for image files in
*/
private function getFileList($dir) {
$list = array();
if(is_dir($dir)) {
if($dh = opendir($dir)) {
// optional sprites_config.php file
$this->loadSpritesConfig($dir);
while (($file = readdir($dh)) !== false)
{
if ($file != "." && $file != ".." && $file != "sprites_config.php")
{
// file info & check supported image format
if($info = $this->getFileInfo($dir, $file)) {
// skip excluded files
if(isset($this->sprites_config[$dir]['exclude']) && array_search($file, $this->sprites_config[$dir]['exclude']) !== false)
{
global $mod_strings;
$msg = string_format($mod_strings['LBL_SPRITES_EXCLUDING_FILE'], array("{$dir}/{$file}"));
$GLOBALS['log']->debug($msg);
$this->logMessage($msg);
} else {
// repeatable sprite ?
$isRepeat = false;
if(isset($this->sprites_config[$dir]['repeat']))
{
foreach($this->sprites_config[$dir]['repeat'] as $repeat)
{
if($info['x'] == $repeat['width'] && $info['y'] == $repeat['height'])
{
$id = md5($repeat['width'].$repeat['height'].$repeat['direction']);
$isRepeat = true;
$this->spriteRepeat['repeat_'.$repeat['direction'].'_'.$id][$dir][$file] = $info;
}
}
}
if(!$isRepeat)
{
$list[$file] = $info;
}
}
} else if(preg_match('/\.(jpg|jpeg|gif|png|bmp|ico)$/i', $file)) {
$GLOBALS['log']->error('Unable to process image file ' . $file);
//$this->logMessage('Unable to process image file ' . $file);
}
}
}
}
closedir($dh);
}
return $list;
}
/**
* loadSpritesConfig
*
* This function is used to load the sprites_config.php file. The sprites_config.php file may be used to add entries
* to the sprites_config member variable which may contain a list of array entries of files/directories to exclude from
* being included into the sprites image.
*
* @param $dir String value of the directory containing the custom sprites_config.php file
*/
private function loadSpritesConfig($dir) {
$sprites_config = array();
if(file_exists("$dir/sprites_config.php"))
{
include("$dir/sprites_config.php");
if(count($sprites_config)) {
$this->sprites_config = array_merge($this->sprites_config, $sprites_config);
}
}
}
/**
* getFileInfo
*
* This is a private helper function to return attributes about an image. If the width, height or type of the
* image file cannot be determined, then we do not process the file.
*
* @return array of file info entries containing file information (x, y, type) if image type is supported
*/
private function getFileInfo($dir, $file) {
$result = false;
$info = @getimagesize($dir.'/'.$file);
if($info) {
// supported image type ?
if(isset($this->imageTypes[$info[2]]))
{
$w = $info[0];
$h = $info[1];
$surface = $w * $h;
// be sure we have an image size
$addSprite = false;
if($surface)
{
// sprite dimensions
if($w <= $this->maxWidth && $h <= $this->maxHeight)
{
$addSprite = true;
}
}
if($addSprite)
{
$result = array();
$result['x'] = $w;
$result['y'] = $h;
$result['type'] = $info[2];
}
} else {
$msg = "Skipping unsupported image file type ({$info[2]}) for file {$file}";
$GLOBALS['log']->error($msg);
$this->logMessage($msg."\n");
}
}
return $result;
}
/**
* createSprites
*
* This is the public function to allow the sprites to be built.
*
* @return $result boolean value indicating whether or not sprites were created
*/
public function createSprites() {
global $mod_strings;
if(!$this->isAvailable)
{
if(!$this->silentRun)
{
$msg = $mod_strings['LBL_SPRITES_NOT_SUPPORTED'];
$GLOBALS['log']->warn($msg);
$this->logMessage($msg);
}
return false;
}
// add repeatable sprites
if(count($this->spriteRepeat))
{
$this->spriteSrc = array_merge($this->spriteSrc, $this->spriteRepeat);
}
foreach($this->spriteSrc as $name => $dirs)
{
if(!$this->silentRun)
{
$msg = string_format($mod_strings['LBL_SPRITES_CREATING_NAMESPACE'], array($name));
$GLOBALS['log']->debug($msg);
$this->logMessage($msg);
}
// setup config for sprite placement algorithm
if(substr($name, 0, 6) == 'repeat')
{
$isRepeat = true;
$type = substr($name, 7, 10) == 'horizontal' ? 'horizontal' : 'vertical';
$config = array(
'type' => $type,
);
} else {
$isRepeat = false;
$config = array(
'type' => 'boxed',
'width' => $this->maxWidth,
'height' => $this->maxHeight,
'rowcnt' => $this->rowCnt,
);
}
// use separate class to arrange the images
$sp = new SpritePlacement($dirs, $config);
$sp->processSprites();
//if(! $this->silentRun)
// echo " (size {$sp->width()}x{$sp->height()})<br />";
// we need a target image size
if($sp->width() && $sp->height())
{
// init sprite image
$this->initSpriteImg($sp->width(), $sp->height());
// add sprites based upon determined coordinates
foreach($dirs as $dir => $files)
{
if(!$this->silentRun)
{
$msg = string_format($mod_strings['LBL_SPRITES_PROCESSING_DIR'], array($dir));
$GLOBALS['log']->debug($msg);
$this->logMessage($msg);
}
foreach($files as $file => $info)
{
if($im = $this->loadImage($dir, $file, $info['type']))
{
// coordinates
$dst_x = $sp->spriteMatrix[$dir.'/'.$file]['x'];
$dst_y = $sp->spriteMatrix[$dir.'/'.$file]['y'];
imagecopy($this->spriteImg, $im, $dst_x, $dst_y, 0, 0, $info['x'], $info['y']);
imagedestroy($im);
if(!$this->silentRun)
{
$msg = string_format($mod_strings['LBL_SPRITES_ADDED'], array("{$dir}/{$file}"));
$GLOBALS['log']->debug($msg);
$this->logMessage($msg);
}
}
}
}
// dir & filenames
if($isRepeat)
{
$outputDir = sugar_cached("sprites/Repeatable");
$spriteFileName = "{$name}.png";
$cssFileName = "{$this->fileName}.css";
$metaFileName = "{$this->fileName}.meta.php";
$nameSpace = "Repeatable";
} else {
$outputDir = sugar_cached("sprites/$name");
$spriteFileName = "{$this->fileName}.png";
$cssFileName = "{$this->fileName}.css";
$metaFileName = "{$this->fileName}.meta.php";
$nameSpace = "{$name}";
}
// directory structure
if(!is_dir(sugar_cached("sprites/$nameSpace")))
{
sugar_mkdir(sugar_cached("sprites/$nameSpace"), 0775, true);
}
// save sprite image
imagepng($this->spriteImg, "$outputDir/$spriteFileName", $this->pngCompression, $this->pngFilter);
imagedestroy($this->spriteImg);
/* generate css & metadata */
$head = '';
$body = '';
$metadata = '';
foreach($sp->spriteSrc as $id => $info)
{
// sprite id
$hash_id = md5($id);
// header
$head .= "span.spr_{$hash_id},\n";
// image size
$w = $info['x'];
$h = $info['y'];
// image offset
$offset_x = $sp->spriteMatrix[$id]['x'];
$offset_y = $sp->spriteMatrix[$id]['y'];
// sprite css
$body .= "/* {$id} */
span.spr_{$hash_id} {
width: {$w}px;
height: {$h}px;
background-position: -{$offset_x}px -{$offset_y}px;
}\n";
$metadata .= '$sprites["'.$id.'"] = array ("class"=>"'.$hash_id.'","width"=>"'.$w.'","height"=>"'.$h.'");'."\n";
}
// common css header
require_once('include/utils.php');
$bg_path = getVersionedPath('index.php').'&entryPoint=getImage&imageName='.$spriteFileName.'&spriteNamespace='.$nameSpace;
$head = rtrim($head, "\n,")." {background: url('../../../{$bg_path}'); no-repeat;display:inline-block;}\n";
// append mode for repeatable sprites
$fileMode = $isRepeat ? 'a' : 'w';
// save css
$css_content = "\n/* autogenerated sprites - $name */\n".$head.$body;
if($this->cssMinify)
{
$css_content = cssmin::minify($css_content);
}
$fh = fopen("$outputDir/$cssFileName", $fileMode);
fwrite($fh, $css_content);
fclose($fh);
/* save metadata */
$add_php_tag = (file_exists("$outputDir/$metaFileName") && $isRepeat) ? false : true;
$fh = fopen("$outputDir/$metaFileName", $fileMode);
if($add_php_tag)
{
fwrite($fh, '<?php');
}
fwrite($fh, "\n/* sprites metadata - $name */\n");
fwrite($fh, $metadata."\n");
fclose($fh);
// if width & height
} else {
if(!$this->silentRun)
{
$msg = string_format($mod_strings['LBL_SPRITES_ADDED'], array($name));
$GLOBALS['log']->debug($msg);
$this->logMessage($msg);
}
}
}
return true;
}
/**
* initSpriteImg
*
* @param w int value representing width of sprite
* @param h int value representing height of sprite
* Private function to initialize creating the sprite canvas image
*/
private function initSpriteImg($w, $h) {
$this->spriteImg = imagecreatetruecolor($w,$h);
$transparent = imagecolorallocatealpha($this->spriteImg, 0, 0, 0, 127);
imagefill($this->spriteImg, 0, 0, $transparent);
imagealphablending($this->spriteImg, false);
imagesavealpha($this->spriteImg, true);
}
/**
* loadImage
*
* private function to load image resources
*
* @param $dir String value of directory where image is located
* @param $file String value of file
* @param $type String value of the file type (IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG)
*
*/
private function loadImage($dir, $file, $type) {
$path_file = $dir.'/'.$file;
switch($type) {
case IMAGETYPE_GIF:
return imagecreatefromgif($path_file);
case IMAGETYPE_JPEG:
return imagecreatefromjpeg($path_file);
case IMAGETYPE_PNG:
return imagecreatefrompng($path_file);
default:
return false;
}
}
/**
* private logMessage
*
* This is a private function used to log messages generated from this class. Depending on whether or not
* silentRun or fromSilentUpgrade is set to true/false then it will either output to screen or write to log file
*
* @param $msg String value of message to log into file or echo into output buffer depending on the context
*/
private function logMessage($msg)
{
if(!$this->silentRun && !$this->fromSilentUpgrade)
{
echo $msg . '<br />';
} else if ($this->fromSilentUpgrade && $this->writeToUpgradeLog) {
logThis($msg, $GLOBALS['path']);
} else if(!$this->silentRun) {
echo $msg . "\n";
}
}
}
/**
* SpritePlacement
*
*/
class SpritePlacement
{
// occupied space
var $spriteMatrix = array();
// minimum surface
var $minSurface = 0;
// sprite src (flattened array)
var $spriteSrc = array();
// placement config array
/*
type = boxed
horizontal
vertical
required params for
type 1 -> width
-> height
-> rowcnt
*/
var $config = array();
function __construct($spriteSrc, $config) {
// convert spriteSrc to flat array
foreach($spriteSrc as $dir => $files) {
foreach($files as $file => $info) {
// use full path as identifier
$full_path = $dir.'/'.$file;
$this->spriteSrc[$full_path] = $info;
}
}
$this->config = $config;
}
function processSprites() {
foreach($this->spriteSrc as $id => $info) {
// dimensions
$x = $info['x'];
$y = $info['y'];
// update min surface
$this->minSurface += $x * $y;
// get coordinates where to add this sprite
if($coor = $this->addSprite($x, $y)) {
$this->spriteMatrix[$id] = $coor;
}
}
}
// returns x/y coordinates to fit the sprite
function addSprite($w, $h) {
$result = false;
switch($this->config['type']) {
// boxed
case 'boxed':
$spriteX = $this->config['width'];
$spriteY = $this->config['height'];
$spriteCnt = count($this->spriteMatrix) + 1;
$y = ceil($spriteCnt / $this->config['rowcnt']);
$x = $spriteCnt - (($y - 1) * $this->config['rowcnt']);
$result = array(
'x' => ($x * $spriteX) + 1 - $spriteX,
'y' => ($y * $spriteY) + 1 - $spriteY);
break;
// horizontal -> align vertically
case 'horizontal':
$result = array('x' => 1, 'y' => $this->height() + 1);
break;
// vertical -> align horizontally
case 'vertical':
$result = array('x' => $this->width() + 1, 'y' => 1);
break;
default:
$GLOBALS['log']->warn(__CLASS__.": Unknown sprite placement algorithm -> {$this->config['type']}");
break;
}
return $result;
}
// calculate total width
function width() {
return $this->getMaxAxis('x');
}
// calculate total height
function height() {
return $this->getMaxAxis('y');
}
// helper function to get highest axis value
function getMaxAxis($axis) {
$val = 0;
foreach($this->spriteMatrix as $id => $coor) {
$new_val = $coor[$axis] + $this->spriteSrc[$id][$axis] - 1;
if($new_val > $val) {
$val = $new_val;
}
}
return $val;
}
}
?>
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