class-image
Code (php)
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<?php
/**
* Image editing
*
* @version 1.5.01-08-2007
* @copyright http://creativecommons.org/licenses/by-sa/2.5/
* @author Boaz den Besten
* @contact www.n3rd.nl
* @PHPversion 5.2.3
*/
class clsImage{
/**
* Current image resource
*
* @var resource
*/
private $m_rImage;
/**
* Original filename
*
* @var string
*/
private $m_sFileName;
/**
* Original file location
*
* @var string
*/
private $m_sFileLocation;
/**
* Current image type
*
* @var integer
*/
private $m_iImageType;
/**
* Watermark positioning constant
*
* Y-POSITION: TOP
*/
const TOP = 1;
/**
* Watermark positioning constant
*
* Y-POSITION: BOTTOM
*/
const BOTTOM = 2;
/**
* Watermark positioning constant
*
* X-POSITION: LEFT
*/
const LEFT = 4;
/**
* Watermark positioning constant
*
* X-POSITION: RIGHT
*/
const RIGHT = 8;
/**
* Watermark positioning constant
*
* XY-POSITION: CENTER
*/
const CENTER = 16;
/**
* Constructor, loads an image file
*
* @param String path to image file
* @throws Exception if IMAGETYPE not supported
* @throws Exception if imagecreate fails
*/
public function __construct($p_sImage){
$aImageInfo = @getimagesize($p_sImage);
$this->m_iImageType = $aImageInfo[2];
if(!(imagetypes() & $this->m_iImageType)){
throw new Exception('Image type is not supported.', 102);
}
$this->m_rImage = @imagecreatefromstring(file_get_contents($p_sImage));
if(!$this->m_rImage){
throw new Exception('imagecreatefromstring faild.', 101);
}
$aPathinfo = pathinfo($p_sImage);
$this->m_sFileLocation = $aPathinfo['dirname'];
$this->m_sFileName = $aPathinfo['basename'];
}
/**
* Clean up the mess
*
*/
public function __destruct(){
imagedestroy($this->m_rImage);
}
/**
* Get the original filename
*
* @return String FileName
*/
public function getFileName(){
return $this->m_sFileName;
}
/**
* Get the original location
*
* @return String File Location
*/
public function getFileLocation(){
return $this->m_sFileLocation;
}
/**
* Get the resource
*
* @return resource Image
*/
public function getResource(){
return $this->m_rImage;
}
/**
* Get the current IMAGETYPE
*
* @return integer
*/
public function getImageType(){
return $this->m_iImageType;
}
/**
* Change the IMAGETYPE
* This will result in a new content-type (and extension) when saving the file.
*
* @param integer IMAGETYPE_XXX constant
* @throws Exception if IMAGETYPE not supported
*/
public function setImageType($p_iImageType){
if(!(imagetypes() & $p_iImageType)){
throw new Exception('Image type is not supported.', 102);
}
$this->m_iImageType = $p_iImageType;
}
/**
* Resize the image
*
* @param int max image size in px
* @param boolean Constant image width & height
* @param boolean Make not bigger (the image wil not be made bigger than the original)
*/
public function resize($p_iDimension, $p_bConstant=false, $p_bNotBigger=true){
$iWidth = imagesx($this->m_rImage);
$iHeight = imagesy($this->m_rImage);
if($p_bNotBigger && ($iWidth < $p_iDimension && $iHeight < $p_iDimension)){
$p_iDimension = ($iWidth > $iHeight) ? $iWidth : $iHeight;
}
if($p_bConstant){
$iSizeX = $p_iDimension;
$iSizeY = $p_iDimension;
}else{
if($iWidth > $iHeight){
$iSizeX = $p_iDimension;
$iSizeY = ($p_iDimension/$iWidth)*$iHeight;
}else{
$iSizeX = ($p_iDimension/$iHeight)*$iWidth;
$iSizeY = $p_iDimension;
}
}
$rResisedImage = imagecreatetruecolor($iSizeX, $iSizeY);
imagecopyresampled($rResisedImage, $this->m_rImage, 0, 0, 0, 0, $iSizeX, $iSizeY, $iWidth, $iHeight);
$this->m_rImage = $rResisedImage;
}
/**
* Rotate the image (to the right)
*
* @param float degrees to rotate
*/
public function rotate($p_fDegrees){
$this->m_rImage = imagerotate($this->m_rImage, $p_fDegrees, 0);
}
/**
* Crop Image
*
* @param Integer Start pixels from left
* @param Integer Start pixels from top
* @param Integer Stop pixels from right
* @param Integer Stop pixels from bottom
*/
public function crop($p_iLeft, $p_iTop, $p_iRight, $p_iBottom){
$iWidth = imagesx($this->m_rImage)-$p_iRight-$p_iLeft;
$iHeight = imagesy($this->m_rImage)-$p_iBottom-$p_iTop;
$rNewImage = imagecreatetruecolor($iWidth, $iHeight);
imagecopy($rNewImage, $this->m_rImage, 0, 0, $p_iLeft, $p_iTop, imagesx($this->m_rImage), imagesy($this->m_rImage));
imagedestroy($this->m_rImage);
$this->m_rImage = $rNewImage;
$rNewImage = null;
}
/**
* Apply a filter to the image
*
* @param integer IMG_FILTER (predefined constants)
* @param mixed optional (can be a float, intger between -255 and 255, intger between -100 and 100 or a hex color.)
* @throws Exception if IMG_FILTER not exists
* @throws Exception if param 2 has invalid value
*/
public function filter($p_iFiler, $p_mArg=null){
switch($p_iFiler){
case IMG_FILTER_NEGATE:
case IMG_FILTER_GRAYSCALE:
case IMG_FILTER_EDGEDETECT:
case IMG_FILTER_EMBOSS:
case IMG_FILTER_GAUSSIAN_BLUR:
case IMG_FILTER_SELECTIVE_BLUR:
case IMG_FILTER_MEAN_REMOVAL:
imagefilter($this->m_rImage, $p_iFiler);
break;
case IMG_FILTER_BRIGHTNESS:
if($p_mArg < -255 || $p_mArg > 255){
throw new Exception('Integer between -255 and +255 expected as second argument.', 305);
}
imagefilter($this->m_rImage, $p_iFiler, $p_mArg);
break;
case IMG_FILTER_CONTRAST:
if($p_mArg < -100 || $p_mArg > 100){
throw new Exception('Integer between -100 and +100 expected as second argument.', 304);
}
imagefilter($this->m_rImage, $p_iFiler, $p_mArg);
break;
case IMG_FILTER_SMOOTH:
if(!is_float($p_mArg)){
throw new Exception('Float expected as second argument.', 303);
}
imagefilter($this->m_rImage, $p_iFiler, $p_mArg);
break;
case IMG_FILTER_COLORIZE:
if(empty($p_mArg) || !preg_match('_(#?)[0-9A-Fa-f]{6}_', $p_mArg)){
throw new Exception('Hex color expected as second argument.', 302);
}
$sColor = str_replace('#', '', $p_mArg);
imagefilter($this->m_rImage, $p_iFiler, hexdec(substr($sColor,0,2)), hexdec(substr($sColor,2,2)), hexdec(substr($sColor,4,2)));
break;
default:
throw new Exception('Invalid IMG_FILTER constant', 301);
}
}
/**
* Place a watermark on top of the image
*
* @param clsImage WaterMark
* @param Integer PositionX (LEFT, CENTER, RIGHT)
* @param Integer PositionY (TOP, CENTER, BOTTOM)
*/
public function addWaterMark(clsImage $p_oWaterMark, $p_iX=self::LEFT, $p_iY=self::TOP){
$rWaterMark = $p_oWaterMark->getResource();
switch($p_iX){
case self::RIGHT:
$iX = imagesx($this->m_rImage)-imagesx($rWaterMark);
break;
case self::CENTER:
$iX = (imagesx($this->m_rImage)/2)-(imagesx($rWaterMark)/2);
break;
case self::LEFT:
default:
$iX = 0;
}
switch($p_iY){
case self::BOTTOM:
$iY = imagesy($this->m_rImage)-imagesy($rWaterMark);
break;
case self::CENTER:
$iY = (imagesy($this->m_rImage)/2)-(imagesy($rWaterMark)/2);
break;
case self::TOP:
default:
$iY = 0;
}
imagecopymerge($this->m_rImage, $rWaterMark, $iX, $iY, 0, 0, imagesx($rWaterMark), imagesy($rWaterMark), 100);
}
/**
* Add some text to the image
*
* @param String Font file location. (eg. ./fonts/font.ttf)
* @param String Text to add
* @param String HEX color code (eg. #FF0000)
* @param float Font size in pixels
* @param Integer PositionX (LEFT, CENTER, RIGHT)
* @param Integer PositionY (TOP, CENTER, BOTTOM)
* @throws Exception if imagettfbbox faild.
* @throws Exception if a invalid HEX color code is passed
*/
public function addText($p_sFontFile, $p_sText, $p_sColor, $p_fSize=12, $p_iX=self::LEFT, $p_iY=self::TOP){
if(!($aTextBox = @imagettfbbox($p_fSize, 0, $p_sFontFile, $p_sText))){
throw new Exception('Imagettfbbox failed.', 501);
}
switch($p_iX){
case self::RIGHT:
$iX = imagesx($this->m_rImage)-$aTextBox[4];
break;
case self::CENTER:
$iX = (imagesx($this->m_rImage)/2)-($aTextBox[4]/2);
break;
case self::LEFT:
default:
$iX = 0;
}
switch($p_iY){
case self::BOTTOM:
$iY = imagesy($this->m_rImage) - $aTextBox[3];
break;
case self::CENTER:
$iY = (imagesy($this->m_rImage)/2)+(abs($aTextBox[5]+$aTextBox[3])/2);
break;
case self::TOP:
default:
$iY = 0 + abs($aTextBox[5]);
}
if(empty($p_sColor) || !preg_match('_(#?)[0-9A-Fa-f]{6}_', $p_sColor)){
throw new Exception('Invalid HEX color code.', 502);
}
$sColor = str_replace('#', '', $p_sColor);
imagettftext($this->m_rImage, $p_fSize, 0, $iX, $iY, imagecolorallocate($this->m_rImage, hexdec(substr($sColor, 0, 2)), hexdec(substr($sColor, 2, 2)), hexdec(substr($sColor, 4, 2))), $p_sFontFile, $p_sText);
}
/**
* Create the image depending on the IMAGETYPE
*
*/
private function createImage(){
switch($this->m_iImageType){
case IMAGETYPE_GIF:
imagegif($this->m_rImage);
break;
case IMAGETYPE_PNG:
imagepng($this->m_rImage);
break;
case IMAGETYPE_WBMP:
imagewbmp($this->m_rImage);
break;
case IMAGETYPE_JPEG:
case IMAGETYPE_XBM:
default:
imagejpeg($this->m_rImage);
}
}
/**
* save the image (overwrite)
*
*/
public function save(){
$this->saveAs(null, null, true);
}
/**
* save the image as
*
* @param String Loaction path (optional)
* @param resource Image resource (optional)
* @param boolean overwrite (default: false)
* @throws Exception if target location is not writable.
*/
public function saveAs($p_sFileLocation = null, $p_sFileName = null, $p_bOverWrite=false){
$sFileLocation = is_null($p_sFileLocation) ? $this->m_sFileLocation : $p_sFileLocation;
$sFileName = is_null($p_sFileName) ? $this->m_sFileName : $p_sFileName.image_type_to_extension($this->m_iImageType);
if(!$p_bOverWrite && file_exists($sFileLocation.'/'.$sFileName)){
throw new Exception('File already exists', 202);
}
ob_start();
$this->createImage();
if(!(file_put_contents($sFileLocation.'/'.$sFileName, ob_get_clean()) > 0)){
throw new Exception('File cannot be saved [location: '.$sFileLocation.'] - [file: '.$sFileName.']', 201);
}
}
/**
* Display the image directly to the screen
*
* note: exceptions and other output wil not be handled correctly
*/
public function display(){
header('Content-type: '.image_type_to_mime_type($this->m_iImageType));
$this->createImage();
}
/**
* BluePrint of the Image
*
*/
public function __toString(){
return print_r($this, true);
}
}
?>
/**
* Image editing
*
* @version 1.5.01-08-2007
* @copyright http://creativecommons.org/licenses/by-sa/2.5/
* @author Boaz den Besten
* @contact www.n3rd.nl
* @PHPversion 5.2.3
*/
class clsImage{
/**
* Current image resource
*
* @var resource
*/
private $m_rImage;
/**
* Original filename
*
* @var string
*/
private $m_sFileName;
/**
* Original file location
*
* @var string
*/
private $m_sFileLocation;
/**
* Current image type
*
* @var integer
*/
private $m_iImageType;
/**
* Watermark positioning constant
*
* Y-POSITION: TOP
*/
const TOP = 1;
/**
* Watermark positioning constant
*
* Y-POSITION: BOTTOM
*/
const BOTTOM = 2;
/**
* Watermark positioning constant
*
* X-POSITION: LEFT
*/
const LEFT = 4;
/**
* Watermark positioning constant
*
* X-POSITION: RIGHT
*/
const RIGHT = 8;
/**
* Watermark positioning constant
*
* XY-POSITION: CENTER
*/
const CENTER = 16;
/**
* Constructor, loads an image file
*
* @param String path to image file
* @throws Exception if IMAGETYPE not supported
* @throws Exception if imagecreate fails
*/
public function __construct($p_sImage){
$aImageInfo = @getimagesize($p_sImage);
$this->m_iImageType = $aImageInfo[2];
if(!(imagetypes() & $this->m_iImageType)){
throw new Exception('Image type is not supported.', 102);
}
$this->m_rImage = @imagecreatefromstring(file_get_contents($p_sImage));
if(!$this->m_rImage){
throw new Exception('imagecreatefromstring faild.', 101);
}
$aPathinfo = pathinfo($p_sImage);
$this->m_sFileLocation = $aPathinfo['dirname'];
$this->m_sFileName = $aPathinfo['basename'];
}
/**
* Clean up the mess
*
*/
public function __destruct(){
imagedestroy($this->m_rImage);
}
/**
* Get the original filename
*
* @return String FileName
*/
public function getFileName(){
return $this->m_sFileName;
}
/**
* Get the original location
*
* @return String File Location
*/
public function getFileLocation(){
return $this->m_sFileLocation;
}
/**
* Get the resource
*
* @return resource Image
*/
public function getResource(){
return $this->m_rImage;
}
/**
* Get the current IMAGETYPE
*
* @return integer
*/
public function getImageType(){
return $this->m_iImageType;
}
/**
* Change the IMAGETYPE
* This will result in a new content-type (and extension) when saving the file.
*
* @param integer IMAGETYPE_XXX constant
* @throws Exception if IMAGETYPE not supported
*/
public function setImageType($p_iImageType){
if(!(imagetypes() & $p_iImageType)){
throw new Exception('Image type is not supported.', 102);
}
$this->m_iImageType = $p_iImageType;
}
/**
* Resize the image
*
* @param int max image size in px
* @param boolean Constant image width & height
* @param boolean Make not bigger (the image wil not be made bigger than the original)
*/
public function resize($p_iDimension, $p_bConstant=false, $p_bNotBigger=true){
$iWidth = imagesx($this->m_rImage);
$iHeight = imagesy($this->m_rImage);
if($p_bNotBigger && ($iWidth < $p_iDimension && $iHeight < $p_iDimension)){
$p_iDimension = ($iWidth > $iHeight) ? $iWidth : $iHeight;
}
if($p_bConstant){
$iSizeX = $p_iDimension;
$iSizeY = $p_iDimension;
}else{
if($iWidth > $iHeight){
$iSizeX = $p_iDimension;
$iSizeY = ($p_iDimension/$iWidth)*$iHeight;
}else{
$iSizeX = ($p_iDimension/$iHeight)*$iWidth;
$iSizeY = $p_iDimension;
}
}
$rResisedImage = imagecreatetruecolor($iSizeX, $iSizeY);
imagecopyresampled($rResisedImage, $this->m_rImage, 0, 0, 0, 0, $iSizeX, $iSizeY, $iWidth, $iHeight);
$this->m_rImage = $rResisedImage;
}
/**
* Rotate the image (to the right)
*
* @param float degrees to rotate
*/
public function rotate($p_fDegrees){
$this->m_rImage = imagerotate($this->m_rImage, $p_fDegrees, 0);
}
/**
* Crop Image
*
* @param Integer Start pixels from left
* @param Integer Start pixels from top
* @param Integer Stop pixels from right
* @param Integer Stop pixels from bottom
*/
public function crop($p_iLeft, $p_iTop, $p_iRight, $p_iBottom){
$iWidth = imagesx($this->m_rImage)-$p_iRight-$p_iLeft;
$iHeight = imagesy($this->m_rImage)-$p_iBottom-$p_iTop;
$rNewImage = imagecreatetruecolor($iWidth, $iHeight);
imagecopy($rNewImage, $this->m_rImage, 0, 0, $p_iLeft, $p_iTop, imagesx($this->m_rImage), imagesy($this->m_rImage));
imagedestroy($this->m_rImage);
$this->m_rImage = $rNewImage;
$rNewImage = null;
}
/**
* Apply a filter to the image
*
* @param integer IMG_FILTER (predefined constants)
* @param mixed optional (can be a float, intger between -255 and 255, intger between -100 and 100 or a hex color.)
* @throws Exception if IMG_FILTER not exists
* @throws Exception if param 2 has invalid value
*/
public function filter($p_iFiler, $p_mArg=null){
switch($p_iFiler){
case IMG_FILTER_NEGATE:
case IMG_FILTER_GRAYSCALE:
case IMG_FILTER_EDGEDETECT:
case IMG_FILTER_EMBOSS:
case IMG_FILTER_GAUSSIAN_BLUR:
case IMG_FILTER_SELECTIVE_BLUR:
case IMG_FILTER_MEAN_REMOVAL:
imagefilter($this->m_rImage, $p_iFiler);
break;
case IMG_FILTER_BRIGHTNESS:
if($p_mArg < -255 || $p_mArg > 255){
throw new Exception('Integer between -255 and +255 expected as second argument.', 305);
}
imagefilter($this->m_rImage, $p_iFiler, $p_mArg);
break;
case IMG_FILTER_CONTRAST:
if($p_mArg < -100 || $p_mArg > 100){
throw new Exception('Integer between -100 and +100 expected as second argument.', 304);
}
imagefilter($this->m_rImage, $p_iFiler, $p_mArg);
break;
case IMG_FILTER_SMOOTH:
if(!is_float($p_mArg)){
throw new Exception('Float expected as second argument.', 303);
}
imagefilter($this->m_rImage, $p_iFiler, $p_mArg);
break;
case IMG_FILTER_COLORIZE:
if(empty($p_mArg) || !preg_match('_(#?)[0-9A-Fa-f]{6}_', $p_mArg)){
throw new Exception('Hex color expected as second argument.', 302);
}
$sColor = str_replace('#', '', $p_mArg);
imagefilter($this->m_rImage, $p_iFiler, hexdec(substr($sColor,0,2)), hexdec(substr($sColor,2,2)), hexdec(substr($sColor,4,2)));
break;
default:
throw new Exception('Invalid IMG_FILTER constant', 301);
}
}
/**
* Place a watermark on top of the image
*
* @param clsImage WaterMark
* @param Integer PositionX (LEFT, CENTER, RIGHT)
* @param Integer PositionY (TOP, CENTER, BOTTOM)
*/
public function addWaterMark(clsImage $p_oWaterMark, $p_iX=self::LEFT, $p_iY=self::TOP){
$rWaterMark = $p_oWaterMark->getResource();
switch($p_iX){
case self::RIGHT:
$iX = imagesx($this->m_rImage)-imagesx($rWaterMark);
break;
case self::CENTER:
$iX = (imagesx($this->m_rImage)/2)-(imagesx($rWaterMark)/2);
break;
case self::LEFT:
default:
$iX = 0;
}
switch($p_iY){
case self::BOTTOM:
$iY = imagesy($this->m_rImage)-imagesy($rWaterMark);
break;
case self::CENTER:
$iY = (imagesy($this->m_rImage)/2)-(imagesy($rWaterMark)/2);
break;
case self::TOP:
default:
$iY = 0;
}
imagecopymerge($this->m_rImage, $rWaterMark, $iX, $iY, 0, 0, imagesx($rWaterMark), imagesy($rWaterMark), 100);
}
/**
* Add some text to the image
*
* @param String Font file location. (eg. ./fonts/font.ttf)
* @param String Text to add
* @param String HEX color code (eg. #FF0000)
* @param float Font size in pixels
* @param Integer PositionX (LEFT, CENTER, RIGHT)
* @param Integer PositionY (TOP, CENTER, BOTTOM)
* @throws Exception if imagettfbbox faild.
* @throws Exception if a invalid HEX color code is passed
*/
public function addText($p_sFontFile, $p_sText, $p_sColor, $p_fSize=12, $p_iX=self::LEFT, $p_iY=self::TOP){
if(!($aTextBox = @imagettfbbox($p_fSize, 0, $p_sFontFile, $p_sText))){
throw new Exception('Imagettfbbox failed.', 501);
}
switch($p_iX){
case self::RIGHT:
$iX = imagesx($this->m_rImage)-$aTextBox[4];
break;
case self::CENTER:
$iX = (imagesx($this->m_rImage)/2)-($aTextBox[4]/2);
break;
case self::LEFT:
default:
$iX = 0;
}
switch($p_iY){
case self::BOTTOM:
$iY = imagesy($this->m_rImage) - $aTextBox[3];
break;
case self::CENTER:
$iY = (imagesy($this->m_rImage)/2)+(abs($aTextBox[5]+$aTextBox[3])/2);
break;
case self::TOP:
default:
$iY = 0 + abs($aTextBox[5]);
}
if(empty($p_sColor) || !preg_match('_(#?)[0-9A-Fa-f]{6}_', $p_sColor)){
throw new Exception('Invalid HEX color code.', 502);
}
$sColor = str_replace('#', '', $p_sColor);
imagettftext($this->m_rImage, $p_fSize, 0, $iX, $iY, imagecolorallocate($this->m_rImage, hexdec(substr($sColor, 0, 2)), hexdec(substr($sColor, 2, 2)), hexdec(substr($sColor, 4, 2))), $p_sFontFile, $p_sText);
}
/**
* Create the image depending on the IMAGETYPE
*
*/
private function createImage(){
switch($this->m_iImageType){
case IMAGETYPE_GIF:
imagegif($this->m_rImage);
break;
case IMAGETYPE_PNG:
imagepng($this->m_rImage);
break;
case IMAGETYPE_WBMP:
imagewbmp($this->m_rImage);
break;
case IMAGETYPE_JPEG:
case IMAGETYPE_XBM:
default:
imagejpeg($this->m_rImage);
}
}
/**
* save the image (overwrite)
*
*/
public function save(){
$this->saveAs(null, null, true);
}
/**
* save the image as
*
* @param String Loaction path (optional)
* @param resource Image resource (optional)
* @param boolean overwrite (default: false)
* @throws Exception if target location is not writable.
*/
public function saveAs($p_sFileLocation = null, $p_sFileName = null, $p_bOverWrite=false){
$sFileLocation = is_null($p_sFileLocation) ? $this->m_sFileLocation : $p_sFileLocation;
$sFileName = is_null($p_sFileName) ? $this->m_sFileName : $p_sFileName.image_type_to_extension($this->m_iImageType);
if(!$p_bOverWrite && file_exists($sFileLocation.'/'.$sFileName)){
throw new Exception('File already exists', 202);
}
ob_start();
$this->createImage();
if(!(file_put_contents($sFileLocation.'/'.$sFileName, ob_get_clean()) > 0)){
throw new Exception('File cannot be saved [location: '.$sFileLocation.'] - [file: '.$sFileName.']', 201);
}
}
/**
* Display the image directly to the screen
*
* note: exceptions and other output wil not be handled correctly
*/
public function display(){
header('Content-type: '.image_type_to_mime_type($this->m_iImageType));
$this->createImage();
}
/**
* BluePrint of the Image
*
*/
public function __toString(){
return print_r($this, true);
}
}
?>