Source of file php_image_magician.php
Size: 98,399 Bytes - Last Modified: 2021-12-23T10:00:38+00:00
/var/www/docs.ssmods.com/process/src/javascript/tinymce/filemanager/include/php_image_magician.php
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| <?php # ========================================================================# # # This work is licensed under the Creative Commons Attribution 3.0 Unported # License. To view a copy of this license, # visit http://creativecommons.org/licenses/by/3.0/ or send a letter to # Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, # 94041, USA. # # All rights reserved. # # Author: Jarrod Oberto # Version: 1.5.1 # Date: 10-05-11 # Purpose: Provide tools for image manipulation using GD # Param In: See functions. # Param Out: Produces a resized image # Requires : Requires PHP GD library. # Usage Example: # include("lib/php_image_magician.php"); # $magicianObj = new resize('images/car.jpg'); # $magicianObj -> resizeImage(150, 100, 0); # $magicianObj -> saveImage('images/car_small.jpg', 100); # # - See end of doc for more examples - # # Supported file types include: jpg, png, gif, bmp, psd (read) # # # # The following functions are taken from phpThumb() [available from # http://phpthumb.sourceforge.net], and are used with written permission # from James Heinrich. # - GD2BMPstring # - GetPixelColor # - LittleEndian2String # # The following functions are from Marc Hibbins and are used with written # permission (are also under the Attribution-ShareAlike # [http://creativecommons.org/licenses/by-sa/3.0/] license. # - # # PhpPsdReader is used with written permission from Tim de Koning. # [http://www.kingsquare.nl/phppsdreader] # # # # Modificatoin history # Date Initials Ver Description # 10-05-11 J.C.O 0.0 Initial build # 01-06-11 J.C.O 0.1.1 * Added reflections # * Added Rounded corners # * You can now use PNG interlacing # * Added shadow # * Added caption box # * Added vintage filter # * Added dynamic image resizing (resize on the fly) # * minor bug fixes # 05-06-11 J.C.O 0.1.1.1 * Fixed undefined variables # 17-06-11 J.C.O 0.1.2 * Added image_batch_class.php class # * Minor bug fixes # 26-07-11 J.C.O 0.1.4 * Added support for external images # * Can now set the crop poisition # 03-08-11 J.C.O 0.1.5 * Added reset() method to reset resource to # original input file. # * Added method addTextToCaptionBox() to # simplify adding text to a caption box. # * Added experimental writeIPTC. (not finished) # * Added experimental readIPTC. (not finished) # 11-08-11 J.C.O * Added initial border presets. # 30-08-11 J.C.O * Added 'auto' crop option to crop portrait # images near the top. # 08-09-11 J.C.O * Added cropImage() method to allow standalone # cropping. # 17-09-11 J.C.O * Added setCropFromTop() set method - set the # percentage to crop from the top when using # crop 'auto' option. # * Added setTransparency() set method - allows you # to turn transparency off (like when saving # as a jpg). # * Added setFillColor() set method - set the # background color to use instead of transparency. # 05-11-11 J.C.O 0.1.5.1 * Fixed interlacing option # 0-07-12 J.C.O 1.0 # # Known issues & Limitations: # ------------------------------- # Not so much an issue, the image is destroyed on the deconstruct rather than # when we have finished with it. The reason for this is that we don't know # when we're finished with it as you can both save the image and display # it directly to the screen (imagedestroy($this->imageResized)) # # Opening BMP files is slow. A test with 884 bmp files processed in a loop # takes forever - over 5 min. This test inlcuded opening the file, then # getting and displaying its width and height. # # $forceStretch: # ------------------------------- # On by default. # $forceStretch can be disabled by calling method setForceStretch with false # parameter. If disabled, if an images original size is smaller than the size # specified by the user, the original size will be used. This is useful when # dealing with small images. # # If enabled, images smaller than the size specified will be stretched to # that size. # # Tips: # ------------------------------- # * If you're resizing a transparent png and saving it as a jpg, set # $keepTransparency to false with: $magicianObj->setTransparency(false); # # FEATURES: # * EASY TO USE # * BMP SUPPORT (read & write) # * PSD (photoshop) support (read) # * RESIZE IMAGES # - Preserve transparency (png, gif) # - Apply sharpening (jpg) (requires PHP >= 5.1.0) # - Set image quality (jpg, png) # - Resize modes: # - exact size # - resize by width (auto height) # - resize by height (auto width) # - auto (automatically determine the best of the above modes to use) # - crop - resize as best as it can then crop the rest # - Force stretching of smaller images (upscale) # * APPLY FILTERS # - Convert to grey scale # - Convert to black and white # - Convert to sepia # - Convert to negative # * ROTATE IMAGES # - Rotate using predefined "left", "right", or "180"; or any custom degree amount # * EXTRACT EXIF DATA (requires exif module) # - make # - model # - date # - exposure # - aperture # - f-stop # - iso # - focal length # - exposure program # - metering mode # - flash status # - creator # - copyright # * ADD WATERMARK # - Specify exact x, y placement # - Or, specify using one of the 9 pre-defined placements such as "tl" # (for top left), "m" (for middle), "br" (for bottom right) # - also specify padding from edge amount (optional). # - Set opacity of watermark (png). # * ADD BORDER # * USE HEX WHEN SPECIFYING COLORS (eg: #ffffff) # * SAVE IMAGE OR OUTPUT TO SCREEN # # # ========================================================================# class imageLib { private $fileName; private $image; protected $imageResized; private $widthOriginal; # Always be the original width private $heightOriginal; private $width; # Current width (width after resize) private $height; private $imageSize; private $fileExtension; private $debug = true; private $errorArray = array(); private $forceStretch = true; private $aggresiveSharpening = false; private $transparentArray = array( '.png', '.gif' ); private $keepTransparency = true; private $fillColorArray = array( 'r' => 255, 'g' => 255, 'b' => 255 ); private $sharpenArray = array( 'jpg' ); private $psdReaderPath; private $filterOverlayPath; private $isInterlace; private $captionBoxPositionArray = array(); private $fontDir = 'fonts'; private $cropFromTopPercent = 10; ## -------------------------------------------------------- function __construct($fileName) # Author: Jarrod Oberto # Date: 27-02-08 # Purpose: Constructor # Param in: $fileName: File name and path. # Param out: n/a # Reference: # Notes: # { if ( ! $this->testGDInstalled()) { if ($this->debug) { throw new Exception('The GD Library is not installed.'); } else { throw new Exception(); } }; $this->initialise(); // *** Save the image file name. Only store this incase you want to display it $this->fileName = $fileName; $this->fileExtension = fix_strtolower(strrchr($fileName, '.')); // *** Open up the file $this->image = $this->openImage($fileName); // *** Assign here so we don't modify the original $this->imageResized = $this->image; // *** If file is an image if ($this->testIsImage($this->image)) { // *** Get width and height $this->width = imagesx($this->image); $this->widthOriginal = imagesx($this->image); $this->height = imagesy($this->image); $this->heightOriginal = imagesy($this->image); /* Added 15-09-08 * Get the filesize using this build in method. * Stores an array of size * * $this->imageSize[1] = width * $this->imageSize[2] = height * $this->imageSize[3] = width x height * */ $this->imageSize = getimagesize($this->fileName); } else { $this->errorArray[] = 'File is not an image'; } } ## -------------------------------------------------------- private function initialise() { $this->psdReaderPath = dirname(__FILE__) . '/classPhpPsdReader.php'; $this->filterOverlayPath = dirname(__FILE__) . '/filters'; // *** Set if image should be interlaced or not. $this->isInterlace = false; } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Resize *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function resizeImage($newWidth, $newHeight, $option = 0, $sharpen = false, $autoRotate = false) # Author: Jarrod Oberto # Date: 27-02-08 # Purpose: Resizes the image # Param in: $newWidth: # $newHeight: # $option: 0 / exact = defined size; # 1 / portrait = keep aspect set height; # 2 / landscape = keep aspect set width; # 3 / auto = auto; # 4 / crop= resize and crop; # # $option can also be an array containing options for # cropping. E.G., array('crop', 'r') # # This array only applies to 'crop' and the 'r' refers to # "crop right". Other value include; tl, t, tr, l, m (default), # r, bl, b, br, or you can specify your own co-ords (which # isn't recommended. # # $sharpen: true: sharpen (jpg only); # false: don't sharpen # Param out: n/a # Reference: # Notes: To clarify the $option input: # 0 = The exact height and width dimensions you set. # 1 = Whatever height is passed in will be the height that # is set. The width will be calculated and set automatically # to a the value that keeps the original aspect ratio. # 2 = The same but based on the width. We try make the image the # biggest size we can while stil fitting inside the box size # 3 = Depending whether the image is landscape or portrait, this # will automatically determine whether to resize via # dimension 1,2 or 0 # 4 = Will resize and then crop the image for best fit # # forceStretch can be applied to options 1,2,3 and 4 # { // *** We can pass in an array of options to change the crop position $cropPos = 'm'; if (is_array($option) && fix_strtolower($option[0]) == 'crop') { $cropPos = $option[1]; # get the crop option } else { if (strpos($option, '-') !== false) { // *** Or pass in a hyphen seperated option $optionPiecesArray = explode('-', $option); $cropPos = end($optionPiecesArray); } } // *** Check the option is valid $option = $this->prepOption($option); // *** Make sure the file passed in is valid if ( ! $this->image) { if ($this->debug) { throw new Exception('file ' . $this->getFileName() . ' is missing or invalid'); } else { throw new Exception(); } }; // *** Get optimal width and height - based on $option $dimensionsArray = $this->getDimensions($newWidth, $newHeight, $option); $optimalWidth = $dimensionsArray['optimalWidth']; $optimalHeight = $dimensionsArray['optimalHeight']; // *** Resample - create image canvas of x, y size $this->imageResized = imagecreatetruecolor($optimalWidth, $optimalHeight); $this->keepTransparancy($optimalWidth, $optimalHeight, $this->imageResized); imagecopyresampled($this->imageResized, $this->image, 0, 0, 0, 0, $optimalWidth, $optimalHeight, $this->width, $this->height); // *** If '4', then crop too if ($option == 4 || $option == 'crop') { if (($optimalWidth >= $newWidth && $optimalHeight >= $newHeight)) { $this->crop($optimalWidth, $optimalHeight, $newWidth, $newHeight, $cropPos); } } // *** If Rotate. if ($autoRotate) { $exifData = $this->getExif(false); if (count($exifData) > 0) { switch ($exifData['orientation']) { case 8: $this->imageResized = imagerotate($this->imageResized, 90, 0); break; case 3: $this->imageResized = imagerotate($this->imageResized, 180, 0); break; case 6: $this->imageResized = imagerotate($this->imageResized, -90, 0); break; } } } // *** Sharpen image (if jpg and the user wishes to do so) if ($sharpen && in_array($this->fileExtension, $this->sharpenArray)) { // *** Sharpen $this->sharpen(); } } ## -------------------------------------------------------- public function cropImage($newWidth, $newHeight, $cropPos = 'm') # Author: Jarrod Oberto # Date: 08-09-11 # Purpose: Crops the image # Param in: $newWidth: crop with # $newHeight: crop height # $cropPos: Can be any of the following: # tl, t, tr, l, m, r, bl, b, br, auto # Or: # a custom position such as '30x50' # Param out: n/a # Reference: # Notes: # { // *** Make sure the file passed in is valid if ( ! $this->image) { if ($this->debug) { throw new Exception('file ' . $this->getFileName() . ' is missing or invalid'); } else { throw new Exception(); } }; $this->imageResized = $this->image; $this->crop($this->width, $this->height, $newWidth, $newHeight, $cropPos); } ## -------------------------------------------------------- private function keepTransparancy($width, $height, $im) # Author: Jarrod Oberto # Date: 08-04-11 # Purpose: Keep transparency for png and gif image # Param in: # Param out: n/a # Reference: # Notes: # { // *** If PNG, perform some transparency retention actions (gif untested) if (in_array($this->fileExtension, $this->transparentArray) && $this->keepTransparency) { imagealphablending($im, false); imagesavealpha($im, true); $transparent = imagecolorallocatealpha($im, 255, 255, 255, 127); imagefilledrectangle($im, 0, 0, $width, $height, $transparent); } else { $color = imagecolorallocate($im, $this->fillColorArray['r'], $this->fillColorArray['g'], $this->fillColorArray['b']); imagefilledrectangle($im, 0, 0, $width, $height, $color); } } ## -------------------------------------------------------- private function crop($optimalWidth, $optimalHeight, $newWidth, $newHeight, $cropPos) # Author: Jarrod Oberto # Date: 15-09-08 # Purpose: Crops the image # Param in: $newWidth: # $newHeight: # Param out: n/a # Reference: # Notes: # { // *** Get cropping co-ordinates $cropArray = $this->getCropPlacing($optimalWidth, $optimalHeight, $newWidth, $newHeight, $cropPos); $cropStartX = $cropArray['x']; $cropStartY = $cropArray['y']; // *** Crop this bad boy $crop = imagecreatetruecolor($newWidth, $newHeight); $this->keepTransparancy($optimalWidth, $optimalHeight, $crop); imagecopyresampled($crop, $this->imageResized, 0, 0, $cropStartX, $cropStartY, $newWidth, $newHeight, $newWidth, $newHeight); $this->imageResized = $crop; // *** Set new width and height to our variables $this->width = $newWidth; $this->height = $newHeight; } ## -------------------------------------------------------- private function getCropPlacing($optimalWidth, $optimalHeight, $newWidth, $newHeight, $pos = 'm') # # Author: Jarrod Oberto # Date: July 11 # Purpose: Set the cropping area. # Params in: # Params out: (array) the crop x and y co-ordinates. # Notes: When specifying the exact pixel crop position (eg 10x15), be # very careful as it's easy to crop out of the image leaving # black borders. # { $pos = fix_strtolower($pos); // *** If co-ords have been entered if (strstr($pos, 'x')) { $pos = str_replace(' ', '', $pos); $xyArray = explode('x', $pos); list($cropStartX, $cropStartY) = $xyArray; } else { switch ($pos) { case 'tl': $cropStartX = 0; $cropStartY = 0; break; case 't': $cropStartX = ($optimalWidth / 2) - ($newWidth / 2); $cropStartY = 0; break; case 'tr': $cropStartX = $optimalWidth - $newWidth; $cropStartY = 0; break; case 'l': $cropStartX = 0; $cropStartY = ($optimalHeight / 2) - ($newHeight / 2); break; case 'm': $cropStartX = ($optimalWidth / 2) - ($newWidth / 2); $cropStartY = ($optimalHeight / 2) - ($newHeight / 2); break; case 'r': $cropStartX = $optimalWidth - $newWidth; $cropStartY = ($optimalHeight / 2) - ($newHeight / 2); break; case 'bl': $cropStartX = 0; $cropStartY = $optimalHeight - $newHeight; break; case 'b': $cropStartX = ($optimalWidth / 2) - ($newWidth / 2); $cropStartY = $optimalHeight - $newHeight; break; case 'br': $cropStartX = $optimalWidth - $newWidth; $cropStartY = $optimalHeight - $newHeight; break; case 'auto': // *** If image is a portrait crop from top, not center. v1.5 if ($optimalHeight > $optimalWidth) { $cropStartX = ($optimalWidth / 2) - ($newWidth / 2); $cropStartY = ($this->cropFromTopPercent / 100) * $optimalHeight; } else { // *** Else crop from the center $cropStartX = ($optimalWidth / 2) - ($newWidth / 2); $cropStartY = ($optimalHeight / 2) - ($newHeight / 2); } break; default: // *** Default to center $cropStartX = ($optimalWidth / 2) - ($newWidth / 2); $cropStartY = ($optimalHeight / 2) - ($newHeight / 2); break; } } return array( 'x' => $cropStartX, 'y' => $cropStartY ); } ## -------------------------------------------------------- private function getDimensions($newWidth, $newHeight, $option) # Author: Jarrod Oberto # Date: 17-11-09 # Purpose: Get new image dimensions based on user specificaions # Param in: $newWidth: # $newHeight: # Param out: Array of new width and height values # Reference: # Notes: If $option = 3 then this function is call recursivly # # To clarify the $option input: # 0 = The exact height and width dimensions you set. # 1 = Whatever height is passed in will be the height that # is set. The width will be calculated and set automatically # to a the value that keeps the original aspect ratio. # 2 = The same but based on the width. # 3 = Depending whether the image is landscape or portrait, this # will automatically determine whether to resize via # dimension 1,2 or 0. # 4 = Resize the image as much as possible, then crop the # remainder. { switch (strval($option)) { case '0': case 'exact': $optimalWidth = $newWidth; $optimalHeight = $newHeight; break; case '1': case 'portrait': $dimensionsArray = $this->getSizeByFixedHeight($newWidth, $newHeight); $optimalWidth = $dimensionsArray['optimalWidth']; $optimalHeight = $dimensionsArray['optimalHeight']; break; case '2': case 'landscape': $dimensionsArray = $this->getSizeByFixedWidth($newWidth, $newHeight); $optimalWidth = $dimensionsArray['optimalWidth']; $optimalHeight = $dimensionsArray['optimalHeight']; break; case '3': case 'auto': $dimensionsArray = $this->getSizeByAuto($newWidth, $newHeight); $optimalWidth = $dimensionsArray['optimalWidth']; $optimalHeight = $dimensionsArray['optimalHeight']; break; case '4': case 'crop': $dimensionsArray = $this->getOptimalCrop($newWidth, $newHeight); $optimalWidth = $dimensionsArray['optimalWidth']; $optimalHeight = $dimensionsArray['optimalHeight']; break; } return array( 'optimalWidth' => $optimalWidth, 'optimalHeight' => $optimalHeight ); } ## -------------------------------------------------------- private function getSizeByFixedHeight($newWidth, $newHeight) { // *** If forcing is off... if ( ! $this->forceStretch) { // *** ...check if actual height is less than target height if ($this->height < $newHeight) { return array( 'optimalWidth' => $this->width, 'optimalHeight' => $this->height ); } } $ratio = $this->width / $this->height; $newWidth = $newHeight * $ratio; //return $newWidth; return array( 'optimalWidth' => $newWidth, 'optimalHeight' => $newHeight ); } ## -------------------------------------------------------- private function getSizeByFixedWidth($newWidth, $newHeight) { // *** If forcing is off... if ( ! $this->forceStretch) { // *** ...check if actual width is less than target width if ($this->width < $newWidth) { return array( 'optimalWidth' => $this->width, 'optimalHeight' => $this->height ); } } $ratio = $this->height / $this->width; $newHeight = $newWidth * $ratio; //return $newHeight; return array( 'optimalWidth' => $newWidth, 'optimalHeight' => $newHeight ); } ## -------------------------------------------------------- private function getSizeByAuto($newWidth, $newHeight) # Author: Jarrod Oberto # Date: 19-08-08 # Purpose: Depending on the height, choose to resize by 0, 1, or 2 # Param in: The new height and new width # Notes: # { // *** If forcing is off... if ( ! $this->forceStretch) { // *** ...check if actual size is less than target size if ($this->width < $newWidth && $this->height < $newHeight) { return array( 'optimalWidth' => $this->width, 'optimalHeight' => $this->height ); } } if ($this->height < $this->width) // *** Image to be resized is wider (landscape) { //$optimalWidth = $newWidth; //$optimalHeight= $this->getSizeByFixedWidth($newWidth); $dimensionsArray = $this->getSizeByFixedWidth($newWidth, $newHeight); $optimalWidth = $dimensionsArray['optimalWidth']; $optimalHeight = $dimensionsArray['optimalHeight']; } elseif ($this->height > $this->width) // *** Image to be resized is taller (portrait) { //$optimalWidth = $this->getSizeByFixedHeight($newHeight); //$optimalHeight= $newHeight; $dimensionsArray = $this->getSizeByFixedHeight($newWidth, $newHeight); $optimalWidth = $dimensionsArray['optimalWidth']; $optimalHeight = $dimensionsArray['optimalHeight']; } else // *** Image to be resizerd is a square { if ($newHeight < $newWidth) { //$optimalWidth = $newWidth; //$optimalHeight= $this->getSizeByFixedWidth($newWidth); $dimensionsArray = $this->getSizeByFixedWidth($newWidth, $newHeight); $optimalWidth = $dimensionsArray['optimalWidth']; $optimalHeight = $dimensionsArray['optimalHeight']; } else { if ($newHeight > $newWidth) { //$optimalWidth = $this->getSizeByFixedHeight($newHeight); //$optimalHeight= $newHeight; $dimensionsArray = $this->getSizeByFixedHeight($newWidth, $newHeight); $optimalWidth = $dimensionsArray['optimalWidth']; $optimalHeight = $dimensionsArray['optimalHeight']; } else { // *** Sqaure being resized to a square $optimalWidth = $newWidth; $optimalHeight = $newHeight; } } } return array( 'optimalWidth' => $optimalWidth, 'optimalHeight' => $optimalHeight ); } ## -------------------------------------------------------- private function getOptimalCrop($newWidth, $newHeight) # Author: Jarrod Oberto # Date: 17-11-09 # Purpose: Get optimal crop dimensions # Param in: width and height as requested by user (fig 3) # Param out: Array of optimal width and height (fig 2) # Reference: # Notes: The optimal width and height return are not the same as the # same as the width and height passed in. For example: # # # |-----------------| |------------| |-------| # | | => |**| |**| => | | # | | |**| |**| | | # | | |------------| |-------| # |-----------------| # original optimal crop # size size size # Fig 1 2 3 # # 300 x 250 150 x 125 150 x 100 # # The optimal size is the smallest size (that is closest to the crop size) # while retaining proportion/ratio. # # The crop size is the optimal size that has been cropped on one axis to # make the image the exact size specified by the user. # # * represent cropped area # { // *** If forcing is off... if ( ! $this->forceStretch) { // *** ...check if actual size is less than target size if ($this->width < $newWidth && $this->height < $newHeight) { return array( 'optimalWidth' => $this->width, 'optimalHeight' => $this->height ); } } $heightRatio = $this->height / $newHeight; $widthRatio = $this->width / $newWidth; if ($heightRatio < $widthRatio) { $optimalRatio = $heightRatio; } else { $optimalRatio = $widthRatio; } $optimalHeight = round($this->height / $optimalRatio); $optimalWidth = round($this->width / $optimalRatio); return array( 'optimalWidth' => $optimalWidth, 'optimalHeight' => $optimalHeight ); } ## -------------------------------------------------------- private function sharpen() # Author: Jarrod Oberto # Date: 08 04 2011 # Purpose: Sharpen image # Param in: n/a # Param out: n/a # Reference: # Notes: # Credit: Incorporates Joe Lencioni (August 6, 2008) code { if (version_compare(PHP_VERSION, '5.1.0') >= 0) { // *** if ($this->aggresiveSharpening) { # A more aggressive sharpening solution $sharpenMatrix = array( array( -1, -1, -1 ), array( -1, 16, -1 ), array( -1, -1, -1 ) ); $divisor = 8; $offset = 0; imageconvolution($this->imageResized, $sharpenMatrix, $divisor, $offset); } else # More subtle and personally more desirable { $sharpness = $this->findSharp($this->widthOriginal, $this->width); $sharpenMatrix = array( array( -1, -2, -1 ), array( -2, $sharpness + 12, -2 ), //Lessen the effect of a filter by increasing the value in the center cell array( -1, -2, -1 ) ); $divisor = $sharpness; // adjusts brightness $offset = 0; imageconvolution($this->imageResized, $sharpenMatrix, $divisor, $offset); } } else { if ($this->debug) { throw new Exception('Sharpening required PHP 5.1.0 or greater.'); } } } ## -------------------------------------------------------- private function sharpen2($level) { $sharpenMatrix = array( array( $level, $level, $level ), array( $level, (8 * $level) + 1, $level ), //Lessen the effect of a filter by increasing the value in the center cell array( $level, $level, $level ) ); } ## -------------------------------------------------------- private function findSharp($orig, $final) # Author: Ryan Rud (http://adryrun.com) # Purpose: Find optimal sharpness # Param in: n/a # Param out: n/a # Reference: # Notes: # { $final = $final * (750.0 / $orig); $a = 52; $b = -0.27810650887573124; $c = .00047337278106508946; $result = $a + $b * $final + $c * $final * $final; return max(round($result), 0); } ## -------------------------------------------------------- private function prepOption($option) # Author: Jarrod Oberto # Purpose: Prep option like change the passed in option to lowercase # Param in: (str/int) $option: eg. 'exact', 'crop'. 0, 4 # Param out: lowercase string # Reference: # Notes: # { if (is_array($option)) { if (fix_strtolower($option[0]) == 'crop' && count($option) == 2) { return 'crop'; } else { throw new Exception('Crop resize option array is badly formatted.'); } } else { if (strpos($option, 'crop') !== false) { return 'crop'; } } if (is_string($option)) { return fix_strtolower($option); } return $option; } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Presets *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ # # Preset are pre-defined templates you can apply to your image. # # These are inteded to be applied to thumbnail images. # public function borderPreset($preset) { switch ($preset) { case 'simple': $this->addBorder(7, '#fff'); $this->addBorder(6, '#f2f1f0'); $this->addBorder(2, '#fff'); $this->addBorder(1, '#ccc'); break; default: break; } } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Draw border *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function addBorder($thickness = 1, $rgbArray = array( 255, 255, 255 )) # Author: Jarrod Oberto # Date: 05-05-11 # Purpose: Add a border to the image # Param in: # Param out: # Reference: # Notes: This border is added to the INSIDE of the image # { if ($this->imageResized) { $rgbArray = $this->formatColor($rgbArray); $r = $rgbArray['r']; $g = $rgbArray['g']; $b = $rgbArray['b']; $x1 = 0; $y1 = 0; $x2 = ImageSX($this->imageResized) - 1; $y2 = ImageSY($this->imageResized) - 1; $rgbArray = ImageColorAllocate($this->imageResized, $r, $g, $b); for ($i = 0; $i < $thickness; $i++) { ImageRectangle($this->imageResized, $x1++, $y1++, $x2--, $y2--, $rgbArray); } } } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Gray Scale *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function greyScale() # Author: Jarrod Oberto # Date: 07-05-2011 # Purpose: Make image greyscale # Param in: n/a # Param out: # Reference: # Notes: # { if ($this->imageResized) { imagefilter($this->imageResized, IMG_FILTER_GRAYSCALE); } } ## -------------------------------------------------------- public function greyScaleEnhanced() # Author: Jarrod Oberto # Date: 07-05-2011 # Purpose: Make image greyscale # Param in: n/a # Param out: # Reference: # Notes: # { if ($this->imageResized) { imagefilter($this->imageResized, IMG_FILTER_GRAYSCALE); imagefilter($this->imageResized, IMG_FILTER_CONTRAST, -15); imagefilter($this->imageResized, IMG_FILTER_BRIGHTNESS, 2); $this->sharpen($this->width); } } ## -------------------------------------------------------- public function greyScaleDramatic() # Alias of gd_filter_monopin { $this->gd_filter_monopin(); } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Black 'n White *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function blackAndWhite() # Author: Jarrod Oberto # Date: 07-05-2011 # Purpose: Make image black and white # Param in: n/a # Param out: # Reference: # Notes: # { if ($this->imageResized) { imagefilter($this->imageResized, IMG_FILTER_GRAYSCALE); imagefilter($this->imageResized, IMG_FILTER_CONTRAST, -1000); } } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Negative *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function negative() # Author: Jarrod Oberto # Date: 07-05-2011 # Purpose: Make image negative # Param in: n/a # Param out: # Reference: # Notes: # { if ($this->imageResized) { imagefilter($this->imageResized, IMG_FILTER_NEGATE); } } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Sepia *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function sepia() # Author: Jarrod Oberto # Date: 07-05-2011 # Purpose: Make image sepia # Param in: n/a # Param out: # Reference: # Notes: # { if ($this->imageResized) { imagefilter($this->imageResized, IMG_FILTER_GRAYSCALE); imagefilter($this->imageResized, IMG_FILTER_BRIGHTNESS, -10); imagefilter($this->imageResized, IMG_FILTER_CONTRAST, -20); imagefilter($this->imageResized, IMG_FILTER_COLORIZE, 60, 30, -15); } } ## -------------------------------------------------------- public function sepia2() { if ($this->imageResized) { $total = imagecolorstotal($this->imageResized); for ($i = 0; $i < $total; $i++) { $index = imagecolorsforindex($this->imageResized, $i); $red = ($index["red"] * 0.393 + $index["green"] * 0.769 + $index["blue"] * 0.189) / 1.351; $green = ($index["red"] * 0.349 + $index["green"] * 0.686 + $index["blue"] * 0.168) / 1.203; $blue = ($index["red"] * 0.272 + $index["green"] * 0.534 + $index["blue"] * 0.131) / 2.140; imagecolorset($this->imageResized, $i, $red, $green, $blue); } } } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Vintage *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function vintage() # Alias of gd_filter_monopin { $this->gd_filter_vintage(); } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Presets By Marc Hibbins *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ /** Apply 'Monopin' preset */ public function gd_filter_monopin() { if ($this->imageResized) { imagefilter($this->imageResized, IMG_FILTER_GRAYSCALE); imagefilter($this->imageResized, IMG_FILTER_BRIGHTNESS, -15); imagefilter($this->imageResized, IMG_FILTER_CONTRAST, -15); $this->imageResized = $this->gd_apply_overlay($this->imageResized, 'vignette', 100); } } ## -------------------------------------------------------- public function gd_filter_vintage() { if ($this->imageResized) { $this->imageResized = $this->gd_apply_overlay($this->imageResized, 'vignette', 45); imagefilter($this->imageResized, IMG_FILTER_BRIGHTNESS, 20); imagefilter($this->imageResized, IMG_FILTER_CONTRAST, -35); imagefilter($this->imageResized, IMG_FILTER_COLORIZE, 60, -10, 35); imagefilter($this->imageResized, IMG_FILTER_SMOOTH, 7); $this->imageResized = $this->gd_apply_overlay($this->imageResized, 'scratch', 10); } } ## -------------------------------------------------------- /** Apply a PNG overlay */ private function gd_apply_overlay($im, $type, $amount) # # Original Author: Marc Hibbins # License: Attribution-ShareAlike 3.0 # Purpose: # Params in: # Params out: # Notes: # { $width = imagesx($im); $height = imagesy($im); $filter = imagecreatetruecolor($width, $height); imagealphablending($filter, false); imagesavealpha($filter, true); $transparent = imagecolorallocatealpha($filter, 255, 255, 255, 127); imagefilledrectangle($filter, 0, 0, $width, $height, $transparent); // *** Resize overlay $overlay = $this->filterOverlayPath . '/' . $type . '.png'; $png = imagecreatefrompng($overlay); imagecopyresampled($filter, $png, 0, 0, 0, 0, $width, $height, imagesx($png), imagesy($png)); $comp = imagecreatetruecolor($width, $height); imagecopy($comp, $im, 0, 0, 0, 0, $width, $height); imagecopy($comp, $filter, 0, 0, 0, 0, $width, $height); imagecopymerge($im, $comp, 0, 0, 0, 0, $width, $height, $amount); imagedestroy($comp); return $im; } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Colorise *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function image_colorize($rgb) { imageTrueColorToPalette($this->imageResized, true, 256); $numColors = imageColorsTotal($this->imageResized); for ($x = 0; $x < $numColors; $x++) { list($r, $g, $b) = array_values(imageColorsForIndex($this->imageResized, $x)); // calculate grayscale in percent $grayscale = ($r + $g + $b) / 3 / 0xff; imageColorSet($this->imageResized, $x, $grayscale * $rgb[0], $grayscale * $rgb[1], $grayscale * $rgb[2] ); } return true; } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Reflection *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function addReflection($reflectionHeight = 50, $startingTransparency = 30, $inside = false, $bgColor = '#fff', $stretch = false, $divider = 0) { // *** Convert color $rgbArray = $this->formatColor($bgColor); $r = $rgbArray['r']; $g = $rgbArray['g']; $b = $rgbArray['b']; $im = $this->imageResized; $li = imagecreatetruecolor($this->width, 1); $bgc = imagecolorallocate($li, $r, $g, $b); imagefilledrectangle($li, 0, 0, $this->width, 1, $bgc); $bg = imagecreatetruecolor($this->width, $reflectionHeight); $wh = imagecolorallocate($im, 255, 255, 255); $im = imagerotate($im, -180, $wh); imagecopyresampled($bg, $im, 0, 0, 0, 0, $this->width, $this->height, $this->width, $this->height); $im = $bg; $bg = imagecreatetruecolor($this->width, $reflectionHeight); for ($x = 0; $x < $this->width; $x++) { imagecopy($bg, $im, $x, 0, $this->width - $x - 1, 0, 1, $reflectionHeight); } $im = $bg; $transaprencyAmount = $this->invertTransparency($startingTransparency, 100); // *** Fade if ($stretch) { $step = 100 / ($reflectionHeight + $startingTransparency); } else { $step = 100 / $reflectionHeight; } for ($i = 0; $i <= $reflectionHeight; $i++) { if ($startingTransparency > 100) { $startingTransparency = 100; } if ($startingTransparency < 1) { $startingTransparency = 1; } imagecopymerge($bg, $li, 0, $i, 0, 0, $this->width, 1, $startingTransparency); $startingTransparency += $step; } // *** Apply fade imagecopymerge($im, $li, 0, 0, 0, 0, $this->width, $divider, 100); // Divider // *** width, height of reflection. $x = imagesx($im); $y = imagesy($im); // *** Determines if the reflection should be displayed inside or outside the image if ($inside) { // Create new blank image with sizes. $final = imagecreatetruecolor($this->width, $this->height); imagecopymerge($final, $this->imageResized, 0, 0, 0, $reflectionHeight, $this->width, $this->height - $reflectionHeight, 100); imagecopymerge($final, $im, 0, $this->height - $reflectionHeight, 0, 0, $x, $y, 100); } else { // Create new blank image with sizes. $final = imagecreatetruecolor($this->width, $this->height + $y); imagecopymerge($final, $this->imageResized, 0, 0, 0, 0, $this->width, $this->height, 100); imagecopymerge($final, $im, 0, $this->height, 0, 0, $x, $y, 100); } $this->imageResized = $final; imagedestroy($li); imagedestroy($im); } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Rotate *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function rotate($value = 90, $bgColor = 'transparent') # Author: Jarrod Oberto # Date: 07-05-2011 # Purpose: Rotate image # Param in: (mixed) $degrees: (int) number of degress to rotate image # (str) param "left": rotate left # (str) param "right": rotate right # (str) param "upside": upside-down image # Param out: # Reference: # Notes: The default direction of imageRotate() is counter clockwise. # { if ($this->imageResized) { if (is_integer($value)) { $degrees = $value; } // *** Convert color $rgbArray = $this->formatColor($bgColor); $r = $rgbArray['r']; $g = $rgbArray['g']; $b = $rgbArray['b']; if (isset($rgbArray['a'])) { $a = $rgbArray['a']; } if (is_string($value)) { $value = fix_strtolower($value); switch ($value) { case 'left': $degrees = 90; break; case 'right': $degrees = 270; break; case 'upside': $degrees = 180; break; default: break; } } // *** The default direction of imageRotate() is counter clockwise // * This makes it clockwise $degrees = 360 - $degrees; // *** Create background color $bg = ImageColorAllocateAlpha($this->imageResized, $r, $g, $b, $a); // *** Fill with background ImageFill($this->imageResized, 0, 0, $bg); // *** Rotate $this->imageResized = imagerotate($this->imageResized, $degrees, $bg); // Rotate 45 degrees and allocated the transparent colour as the one to make transparent (obviously) // Ensure alpha transparency ImageSaveAlpha($this->imageResized, true); } } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Round corners *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function roundCorners($radius = 5, $bgColor = 'transparent') # Author: Jarrod Oberto # Date: 19-05-2011 # Purpose: Create rounded corners on your image # Param in: (int) radius = the amount of curvature # (mixed) $bgColor = the corner background color # Param out: n/a # Reference: # Notes: # { // *** Check if the user wants transparency $isTransparent = false; if ( ! is_array($bgColor)) { if (fix_strtolower($bgColor) == 'transparent') { $isTransparent = true; } } // *** If we use transparency, we need to color our curved mask with a unique color if ($isTransparent) { $bgColor = $this->findUnusedGreen(); } // *** Convert color $rgbArray = $this->formatColor($bgColor); $r = $rgbArray['r']; $g = $rgbArray['g']; $b = $rgbArray['b']; if (isset($rgbArray['a'])) { $a = $rgbArray['a']; } // *** Create top-left corner mask (square) $cornerImg = imagecreatetruecolor($radius, $radius); //$cornerImg = imagecreate($radius, $radius); //imagealphablending($cornerImg, true); //imagesavealpha($cornerImg, true); //imagealphablending($this->imageResized, false); //imagesavealpha($this->imageResized, true); // *** Give it a color $maskColor = imagecolorallocate($cornerImg, 0, 0, 0); // *** Replace the mask color (black) to transparent imagecolortransparent($cornerImg, $maskColor); // *** Create the image background color $imagebgColor = imagecolorallocate($cornerImg, $r, $g, $b); // *** Fill the corner area to the user defined color imagefill($cornerImg, 0, 0, $imagebgColor); imagefilledellipse($cornerImg, $radius, $radius, $radius * 2, $radius * 2, $maskColor); // *** Map to top left corner imagecopymerge($this->imageResized, $cornerImg, 0, 0, 0, 0, $radius, $radius, 100); #tl // *** Map rounded corner to other corners by rotating and applying the mask $cornerImg = imagerotate($cornerImg, 90, 0); imagecopymerge($this->imageResized, $cornerImg, 0, $this->height - $radius, 0, 0, $radius, $radius, 100); #bl $cornerImg = imagerotate($cornerImg, 90, 0); imagecopymerge($this->imageResized, $cornerImg, $this->width - $radius, $this->height - $radius, 0, 0, $radius, $radius, 100); #br $cornerImg = imagerotate($cornerImg, 90, 0); imagecopymerge($this->imageResized, $cornerImg, $this->width - $radius, 0, 0, 0, $radius, $radius, 100); #tr // *** If corners are to be transparent, we fill our chromakey color as transparent. if ($isTransparent) { //imagecolortransparent($this->imageResized, $imagebgColor); $this->imageResized = $this->transparentImage($this->imageResized); imagesavealpha($this->imageResized, true); } } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Shadow *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function addShadow($shadowAngle = 45, $blur = 15, $bgColor = 'transparent') # # Author: Jarrod Oberto (Adapted from Pascal Naidon) # Ref: http://www.les-stooges.org/pascal/webdesign/vignettes/index.php?la=en # Purpose: Add a drop shadow to your image # Params in: (int) $angle: the angle of the shadow # (int) $blur: the blur distance # (mixed) $bgColor: the color of the background # Params out: # Notes: # { // *** A higher number results in a smoother shadow define('STEPS', $blur * 2); // *** Set the shadow distance $shadowDistance = $blur * 0.25; // *** Set blur width and height $blurWidth = $blurHeight = $blur; if ($shadowAngle == 0) { $distWidth = 0; $distHeight = 0; } else { $distWidth = $shadowDistance * cos(deg2rad($shadowAngle)); $distHeight = $shadowDistance * sin(deg2rad($shadowAngle)); } // *** Convert color if (fix_strtolower($bgColor) != 'transparent') { $rgbArray = $this->formatColor($bgColor); $r0 = $rgbArray['r']; $g0 = $rgbArray['g']; $b0 = $rgbArray['b']; } $image = $this->imageResized; $width = $this->width; $height = $this->height; $newImage = imagecreatetruecolor($width, $height); imagecopyresampled($newImage, $image, 0, 0, 0, 0, $width, $height, $width, $height); // *** RGB $rgb = imagecreatetruecolor($width + $blurWidth, $height + $blurHeight); $colour = imagecolorallocate($rgb, 0, 0, 0); imagefilledrectangle($rgb, 0, 0, $width + $blurWidth, $height + $blurHeight, $colour); $colour = imagecolorallocate($rgb, 255, 255, 255); //imagefilledrectangle($rgb, $blurWidth*0.5-$distWidth, $blurHeight*0.5-$distHeight, $width+$blurWidth*0.5-$distWidth, $height+$blurWidth*0.5-$distHeight, $colour); imagefilledrectangle($rgb, $blurWidth * 0.5 - $distWidth, $blurHeight * 0.5 - $distHeight, $width + $blurWidth * 0.5 - $distWidth, $height + $blurWidth * 0.5 - $distHeight, $colour); //imagecopymerge($rgb, $newImage, 1+$blurWidth*0.5-$distWidth, 1+$blurHeight*0.5-$distHeight, 0,0, $width, $height, 100); imagecopymerge($rgb, $newImage, $blurWidth * 0.5 - $distWidth, $blurHeight * 0.5 - $distHeight, 0, 0, $width + $blurWidth, $height + $blurHeight, 100); // *** Shadow (alpha) $shadow = imagecreatetruecolor($width + $blurWidth, $height + $blurHeight); imagealphablending($shadow, false); $colour = imagecolorallocate($shadow, 0, 0, 0); imagefilledrectangle($shadow, 0, 0, $width + $blurWidth, $height + $blurHeight, $colour); for ($i = 0; $i <= STEPS; $i++) { $t = ((1.0 * $i) / STEPS); $intensity = 255 * $t * $t; $colour = imagecolorallocate($shadow, $intensity, $intensity, $intensity); $points = array( $blurWidth * $t, $blurHeight, // Point 1 (x, y) $blurWidth, $blurHeight * $t, // Point 2 (x, y) $width, $blurHeight * $t, // Point 3 (x, y) $width + $blurWidth * (1 - $t), $blurHeight, // Point 4 (x, y) $width + $blurWidth * (1 - $t), $height, // Point 5 (x, y) $width, $height + $blurHeight * (1 - $t), // Point 6 (x, y) $blurWidth, $height + $blurHeight * (1 - $t), // Point 7 (x, y) $blurWidth * $t, $height // Point 8 (x, y) ); imagepolygon($shadow, $points, 8, $colour); } for ($i = 0; $i <= STEPS; $i++) { $t = ((1.0 * $i) / STEPS); $intensity = 255 * $t * $t; $colour = imagecolorallocate($shadow, $intensity, $intensity, $intensity); imagefilledarc($shadow, $blurWidth - 1, $blurHeight - 1, 2 * (1 - $t) * $blurWidth, 2 * (1 - $t) * $blurHeight, 180, 268, $colour, IMG_ARC_PIE); imagefilledarc($shadow, $width, $blurHeight - 1, 2 * (1 - $t) * $blurWidth, 2 * (1 - $t) * $blurHeight, 270, 358, $colour, IMG_ARC_PIE); imagefilledarc($shadow, $width, $height, 2 * (1 - $t) * $blurWidth, 2 * (1 - $t) * $blurHeight, 0, 90, $colour, IMG_ARC_PIE); imagefilledarc($shadow, $blurWidth - 1, $height, 2 * (1 - $t) * $blurWidth, 2 * (1 - $t) * $blurHeight, 90, 180, $colour, IMG_ARC_PIE); } $colour = imagecolorallocate($shadow, 255, 255, 255); imagefilledrectangle($shadow, $blurWidth, $blurHeight, $width, $height, $colour); imagefilledrectangle($shadow, $blurWidth * 0.5 - $distWidth, $blurHeight * 0.5 - $distHeight, $width + $blurWidth * 0.5 - 1 - $distWidth, $height + $blurHeight * 0.5 - 1 - $distHeight, $colour); // *** The magic imagealphablending($rgb, false); for ($theX = 0; $theX < imagesx($rgb); $theX++) { for ($theY = 0; $theY < imagesy($rgb); $theY++) { // *** Get the RGB values for every pixel of the RGB image $colArray = imagecolorat($rgb, $theX, $theY); $r = ($colArray >> 16) & 0xFF; $g = ($colArray >> 8) & 0xFF; $b = $colArray & 0xFF; // *** Get the alpha value for every pixel of the shadow image $colArray = imagecolorat($shadow, $theX, $theY); $a = $colArray & 0xFF; $a = 127 - floor($a / 2); $t = $a / 128.0; // *** Create color if (fix_strtolower($bgColor) == 'transparent') { $myColour = imagecolorallocatealpha($rgb, $r, $g, $b, $a); } else { $myColour = imagecolorallocate($rgb, $r * (1.0 - $t) + $r0 * $t, $g * (1.0 - $t) + $g0 * $t, $b * (1.0 - $t) + $b0 * $t); } // *** Add color to new rgb image imagesetpixel($rgb, $theX, $theY, $myColour); } } imagealphablending($rgb, true); imagesavealpha($rgb, true); $this->imageResized = $rgb; imagedestroy($image); imagedestroy($newImage); imagedestroy($shadow); } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Add Caption Box *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function addCaptionBox($side = 'b', $thickness = 50, $padding = 0, $bgColor = '#000', $transaprencyAmount = 30) # # Author: Jarrod Oberto # Date: 26 May 2011 # Purpose: Add a caption box # Params in: (str) $side: the side to add the caption box (t, r, b, or l). # (int) $thickness: how thick you want the caption box to be. # (mixed) $bgColor: The color of the caption box. # (int) $transaprencyAmount: The amount of transparency to be # applied. # Params out: n/a # Notes: # { $side = fix_strtolower($side); // *** Convert color $rgbArray = $this->formatColor($bgColor); $r = $rgbArray['r']; $g = $rgbArray['g']; $b = $rgbArray['b']; $positionArray = $this->calculateCaptionBoxPosition($side, $thickness, $padding); // *** Store incase we want to use method addTextToCaptionBox() $this->captionBoxPositionArray = $positionArray; $transaprencyAmount = $this->invertTransparency($transaprencyAmount, 127, false); $transparent = imagecolorallocatealpha($this->imageResized, $r, $g, $b, $transaprencyAmount); imagefilledrectangle($this->imageResized, $positionArray['x1'], $positionArray['y1'], $positionArray['x2'], $positionArray['y2'], $transparent); } ## -------------------------------------------------------- public function addTextToCaptionBox($text, $fontColor = '#fff', $fontSize = 12, $angle = 0, $font = null) # # Author: Jarrod Oberto # Date: 03 Aug 11 # Purpose: Simplify adding text to a caption box by automatically # locating the center of the caption box # Params in: The usually text paams (less a couple) # Params out: n/a # Notes: # { // *** Get the caption box measurements if (count($this->captionBoxPositionArray) == 4) { $x1 = $this->captionBoxPositionArray['x1']; $x2 = $this->captionBoxPositionArray['x2']; $y1 = $this->captionBoxPositionArray['y1']; $y2 = $this->captionBoxPositionArray['y2']; } else { if ($this->debug) { throw new Exception('No caption box found.'); } else { return false; } } // *** Get text font $font = $this->getTextFont($font); // *** Get text size $textSizeArray = $this->getTextSize($fontSize, $angle, $font, $text); $textWidth = $textSizeArray['width']; $textHeight = $textSizeArray['height']; // *** Find the width/height middle points $boxXMiddle = (($x2 - $x1) / 2); $boxYMiddle = (($y2 - $y1) / 2); // *** Box middle - half the text width/height $xPos = ($x1 + $boxXMiddle) - ($textWidth / 2); $yPos = ($y1 + $boxYMiddle) - ($textHeight / 2); $pos = $xPos . 'x' . $yPos; $this->addText($text, $pos, $padding = 0, $fontColor, $fontSize, $angle, $font); } ## -------------------------------------------------------- private function calculateCaptionBoxPosition($side, $thickness, $padding) { $positionArray = array(); switch ($side) { case 't': $positionArray['x1'] = 0; $positionArray['y1'] = $padding; $positionArray['x2'] = $this->width; $positionArray['y2'] = $thickness + $padding; break; case 'r': $positionArray['x1'] = $this->width - $thickness - $padding; $positionArray['y1'] = 0; $positionArray['x2'] = $this->width - $padding; $positionArray['y2'] = $this->height; break; case 'b': $positionArray['x1'] = 0; $positionArray['y1'] = $this->height - $thickness - $padding; $positionArray['x2'] = $this->width; $positionArray['y2'] = $this->height - $padding; break; case 'l': $positionArray['x1'] = $padding; $positionArray['y1'] = 0; $positionArray['x2'] = $thickness + $padding; $positionArray['y2'] = $this->height; break; default: break; } return $positionArray; } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Get EXIF Data *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function getExif($debug = false) # Author: Jarrod Oberto # Date: 07-05-2011 # Purpose: Get image EXIF data # Param in: n/a # Param out: An associate array of EXIF data # Reference: # Notes: # 23 May 13 : added orientation flag -jco # { if ( ! $this->debug || ! $debug) { $debug = false; } // *** Check all is good - check the EXIF library exists and the file exists, too. if ( ! $this->testEXIFInstalled()) { if ($debug) { throw new Exception('The EXIF Library is not installed.'); } else { return array(); } }; if ( ! file_exists($this->fileName)) { if ($debug) { throw new Exception('Image not found.'); } else { return array(); } }; if ($this->fileExtension != '.jpg') { if ($debug) { throw new Exception('Metadata not supported for this image type.'); } else { return array(); } }; $exifData = exif_read_data($this->fileName, 'IFD0'); // *** Format the apperture value $ev = $exifData['ApertureValue']; $apPeicesArray = explode('/', $ev); if (count($apPeicesArray) == 2) { $apertureValue = round($apPeicesArray[0] / $apPeicesArray[1], 2, PHP_ROUND_HALF_DOWN) . ' EV'; } else { $apertureValue = ''; } // *** Format the focal length $focalLength = $exifData['FocalLength']; $flPeicesArray = explode('/', $focalLength); if (count($flPeicesArray) == 2) { $focalLength = $flPeicesArray[0] / $flPeicesArray[1] . '.0 mm'; } else { $focalLength = ''; } // *** Format fNumber $fNumber = $exifData['FNumber']; $fnPeicesArray = explode('/', $fNumber); if (count($fnPeicesArray) == 2) { $fNumber = $fnPeicesArray[0] / $fnPeicesArray[1]; } else { $fNumber = ''; } // *** Resolve ExposureProgram if (isset($exifData['ExposureProgram'])) { $ep = $exifData['ExposureProgram']; } if (isset($ep)) { $ep = $this->resolveExposureProgram($ep); } // *** Resolve MeteringMode $mm = $exifData['MeteringMode']; $mm = $this->resolveMeteringMode($mm); // *** Resolve Flash $flash = $exifData['Flash']; $flash = $this->resolveFlash($flash); if (isset($exifData['Make'])) { $exifDataArray['make'] = $exifData['Make']; } else { $exifDataArray['make'] = ''; } if (isset($exifData['Model'])) { $exifDataArray['model'] = $exifData['Model']; } else { $exifDataArray['model'] = ''; } if (isset($exifData['DateTime'])) { $exifDataArray['date'] = $exifData['DateTime']; } else { $exifDataArray['date'] = ''; } if (isset($exifData['ExposureTime'])) { $exifDataArray['exposure time'] = $exifData['ExposureTime'] . ' sec.'; } else { $exifDataArray['exposure time'] = ''; } if ($apertureValue != '') { $exifDataArray['aperture value'] = $apertureValue; } else { $exifDataArray['aperture value'] = ''; } if (isset($exifData['COMPUTED']['ApertureFNumber'])) { $exifDataArray['f-stop'] = $exifData['COMPUTED']['ApertureFNumber']; } else { $exifDataArray['f-stop'] = ''; } if (isset($exifData['FNumber'])) { $exifDataArray['fnumber'] = $exifData['FNumber']; } else { $exifDataArray['fnumber'] = ''; } if ($fNumber != '') { $exifDataArray['fnumber value'] = $fNumber; } else { $exifDataArray['fnumber value'] = ''; } if (isset($exifData['ISOSpeedRatings'])) { $exifDataArray['iso'] = $exifData['ISOSpeedRatings']; } else { $exifDataArray['iso'] = ''; } if ($focalLength != '') { $exifDataArray['focal length'] = $focalLength; } else { $exifDataArray['focal length'] = ''; } if (isset($ep)) { $exifDataArray['exposure program'] = $ep; } else { $exifDataArray['exposure program'] = ''; } if ($mm != '') { $exifDataArray['metering mode'] = $mm; } else { $exifDataArray['metering mode'] = ''; } if ($flash != '') { $exifDataArray['flash status'] = $flash; } else { $exifDataArray['flash status'] = ''; } if (isset($exifData['Artist'])) { $exifDataArray['creator'] = $exifData['Artist']; } else { $exifDataArray['creator'] = ''; } if (isset($exifData['Copyright'])) { $exifDataArray['copyright'] = $exifData['Copyright']; } else { $exifDataArray['copyright'] = ''; } // *** Orientation if (isset($exifData['Orientation'])) { $exifDataArray['orientation'] = $exifData['Orientation']; } else { $exifDataArray['orientation'] = ''; } return $exifDataArray; } ## -------------------------------------------------------- private function resolveExposureProgram($ep) { switch ($ep) { case 0: $ep = ''; break; case 1: $ep = 'manual'; break; case 2: $ep = 'normal program'; break; case 3: $ep = 'aperture priority'; break; case 4: $ep = 'shutter priority'; break; case 5: $ep = 'creative program'; break; case 6: $ep = 'action program'; break; case 7: $ep = 'portrait mode'; break; case 8: $ep = 'landscape mode'; break; default: break; } return $ep; } ## -------------------------------------------------------- private function resolveMeteringMode($mm) { switch ($mm) { case 0: $mm = 'unknown'; break; case 1: $mm = 'average'; break; case 2: $mm = 'center weighted average'; break; case 3: $mm = 'spot'; break; case 4: $mm = 'multi spot'; break; case 5: $mm = 'pattern'; break; case 6: $mm = 'partial'; break; case 255: $mm = 'other'; break; default: break; } return $mm; } ## -------------------------------------------------------- private function resolveFlash($flash) { switch ($flash) { case 0: $flash = 'flash did not fire'; break; case 1: $flash = 'flash fired'; break; case 5: $flash = 'strobe return light not detected'; break; case 7: $flash = 'strobe return light detected'; break; case 9: $flash = 'flash fired, compulsory flash mode'; break; case 13: $flash = 'flash fired, compulsory flash mode, return light not detected'; break; case 15: $flash = 'flash fired, compulsory flash mode, return light detected'; break; case 16: $flash = 'flash did not fire, compulsory flash mode'; break; case 24: $flash = 'flash did not fire, auto mode'; break; case 25: $flash = 'flash fired, auto mode'; break; case 29: $flash = 'flash fired, auto mode, return light not detected'; break; case 31: $flash = 'flash fired, auto mode, return light detected'; break; case 32: $flash = 'no flash function'; break; case 65: $flash = 'flash fired, red-eye reduction mode'; break; case 69: $flash = 'flash fired, red-eye reduction mode, return light not detected'; break; case 71: $flash = 'flash fired, red-eye reduction mode, return light detected'; break; case 73: $flash = 'flash fired, compulsory flash mode, red-eye reduction mode'; break; case 77: $flash = 'flash fired, compulsory flash mode, red-eye reduction mode, return light not detected'; break; case 79: $flash = 'flash fired, compulsory flash mode, red-eye reduction mode, return light detected'; break; case 89: $flash = 'flash fired, auto mode, red-eye reduction mode'; break; case 93: $flash = 'flash fired, auto mode, return light not detected, red-eye reduction mode'; break; case 95: $flash = 'flash fired, auto mode, return light detected, red-eye reduction mode'; break; default: break; } return $flash; } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Get IPTC Data *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Write IPTC Data *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function writeIPTCcaption($value) # Caption { $this->writeIPTC(120, $value); } ## -------------------------------------------------------- public function writeIPTCwriter($value) { //$this->writeIPTC(65, $value); } ## -------------------------------------------------------- private function writeIPTC($dat, $value) { # LIMIT TO JPG $caption_block = $this->iptc_maketag(2, $dat, $value); $image_string = iptcembed($caption_block, $this->fileName); file_put_contents('iptc.jpg', $image_string); } ## -------------------------------------------------------- private function iptc_maketag($rec, $dat, $val) # Author: Thies C. Arntzen # Purpose: Function to format the new IPTC text # Param in: $rec: Application record. (We’re working with #2) # $dat: Index. (120 for caption, 118 for contact. See the IPTC IIM # specification: # http://www.iptc.org/std/IIM/4.1/specification/IIMV4.1.pdf # $val: Value/data/text. Make sure this is within the length # constraints of the IPTC IIM specification # Ref: http://blog.peterhaza.no/working-with-image-meta-data-in-exif-and-iptc-headers-from-php/ # http://php.net/manual/en/function.iptcembed.php # { $len = strlen($val); if ($len < 0x8000) { return chr(0x1c) . chr($rec) . chr($dat) . chr($len >> 8) . chr($len & 0xff) . $val; } else { return chr(0x1c) . chr($rec) . chr($dat) . chr(0x80) . chr(0x04) . chr(($len >> 24) & 0xff) . chr(($len >> 16) & 0xff) . chr(($len >> 8) & 0xff) . chr(($len) & 0xff) . $val; } } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Write XMP Data *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ //http://xmpphptoolkit.sourceforge.net/ /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Add Text *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function addText($text, $pos = '20x20', $padding = 0, $fontColor = '#fff', $fontSize = 12, $angle = 0, $font = null) # Author: Jarrod Oberto # Date: 18-11-09 # Purpose: Add text to an image # Param in: # Param out: # Reference: http://php.net/manual/en/function.imagettftext.php # Notes: Make sure you supply the font. # { // *** Convert color $rgbArray = $this->formatColor($fontColor); $r = $rgbArray['r']; $g = $rgbArray['g']; $b = $rgbArray['b']; // *** Get text font $font = $this->getTextFont($font); // *** Get text size $textSizeArray = $this->getTextSize($fontSize, $angle, $font, $text); $textWidth = $textSizeArray['width']; $textHeight = $textSizeArray['height']; // *** Find co-ords to place text $posArray = $this->calculatePosition($pos, $padding, $textWidth, $textHeight, false); $x = $posArray['width']; $y = $posArray['height']; $fontColor = imagecolorallocate($this->imageResized, $r, $g, $b); // *** Add text imagettftext($this->imageResized, $fontSize, $angle, $x, $y, $fontColor, $font, $text); } ## -------------------------------------------------------- private function getTextFont($font) { // *** Font path (shou $fontPath = dirname(__FILE__) . '/' . $this->fontDir; // *** The below is/may be needed depending on your version (see ref) putenv('GDFONTPATH=' . realpath('.')); // *** Check if the passed in font exsits... if ($font == null || ! file_exists($font)) { // *** ...If not, default to this font. $font = $fontPath . '/arimo.ttf'; // *** Check our default font exists... if ( ! file_exists($font)) { // *** If not, return false if ($this->debug) { throw new Exception('Font not found'); } else { return false; } } } return $font; } ## -------------------------------------------------------- private function getTextSize($fontSize, $angle, $font, $text) { // *** Define box (so we can get the width) $box = @imageTTFBbox($fontSize, $angle, $font, $text); // *** Get width of text from dimensions $textWidth = abs($box[4] - $box[0]); // *** Get height of text from dimensions (should also be same as $fontSize) $textHeight = abs($box[5] - $box[1]); return array( 'height' => $textHeight, 'width' => $textWidth ); } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- Add Watermark *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ public function addWatermark($watermarkImage, $pos, $padding = 0, $opacity = 0) # Author: Jarrod Oberto # Date: 18-11-09 # Purpose: Add watermark image # Param in: (str) $watermark: The watermark image # (str) $pos: Could be a pre-determined position such as: # tl = top left, # t = top (middle), # tr = top right, # l = left, # m = middle, # r = right, # bl = bottom left, # b = bottom (middle), # br = bottom right # Or, it could be a co-ordinate position such as: 50x100 # # (int) $padding: If using a pre-determined position you can # adjust the padding from the edges by passing an amount # in pixels. If using co-ordinates, this value is ignored. # Param out: # Reference: http://www.php.net/manual/en/image.examples-watermark.php # Notes: Based on example in reference. # # { // Load the stamp and the photo to apply the watermark to $stamp = $this->openImage($watermarkImage); # stamp $im = $this->imageResized; # photo // *** Get stamps width and height $sx = imagesx($stamp); $sy = imagesy($stamp); // *** Find co-ords to place image $posArray = $this->calculatePosition($pos, $padding, $sx, $sy); $x = $posArray['width']; $y = $posArray['height']; // *** Set watermark opacity if (fix_strtolower(strrchr($watermarkImage, '.')) == '.png') { $opacity = $this->invertTransparency($opacity, 100); $this->filterOpacity($stamp, $opacity); } // Copy the watermark image onto our photo imagecopy($im, $stamp, $x, $y, 0, 0, imagesx($stamp), imagesy($stamp)); } ## -------------------------------------------------------- private function calculatePosition($pos, $padding, $assetWidth, $assetHeight, $upperLeft = true) # # Author: Jarrod Oberto # Date: 08-05-11 # Purpose: Calculate the x, y pixel cordinates of the asset to place # Params in: (str) $pos: Either something like: "tl", "l", "br" or an # exact position like: "100x50" # (int) $padding: The amount of padding from the edge. Only # used for the predefined $pos. # (int) $assetWidth: The width of the asset to add to the image # (int) $assetHeight: The height of the asset to add to the image # (bol) $upperLeft: if true, the asset will be positioned based # on the upper left x, y coords. If false, it means you're # using the lower left as the basepoint and this will # convert it to the upper left position # Params out: # NOTE: this is done from the UPPER left corner!! But will convert lower # left basepoints to upper left if $upperleft is set to false # # { $pos = fix_strtolower($pos); // *** If co-ords have been entered if (strstr($pos, 'x')) { $pos = str_replace(' ', '', $pos); $xyArray = explode('x', $pos); list($width, $height) = $xyArray; } else { switch ($pos) { case 'tl': $width = 0 + $padding; $height = 0 + $padding; break; case 't': $width = ($this->width / 2) - ($assetWidth / 2); $height = 0 + $padding; break; case 'tr': $width = $this->width - $assetWidth - $padding; $height = 0 + $padding;; break; case 'l': $width = 0 + $padding; $height = ($this->height / 2) - ($assetHeight / 2); break; case 'm': $width = ($this->width / 2) - ($assetWidth / 2); $height = ($this->height / 2) - ($assetHeight / 2); break; case 'r': $width = $this->width - $assetWidth - $padding; $height = ($this->height / 2) - ($assetHeight / 2); break; case 'bl': $width = 0 + $padding; $height = $this->height - $assetHeight - $padding; break; case 'b': $width = ($this->width / 2) - ($assetWidth / 2); $height = $this->height - $assetHeight - $padding; break; case 'br': $width = $this->width - $assetWidth - $padding; $height = $this->height - $assetHeight - $padding; break; default: $width = 0; $height = 0; break; } } if ( ! $upperLeft) { $height = $height + $assetHeight; } return array( 'width' => $width, 'height' => $height ); } ## -------------------------------------------------------- private function filterOpacity(&$img, $opacity = 75) # # Author: aiden dot mail at freemail dot hu # Author date: 29-03-08 08:16 # Date added: 08-05-11 # Purpose: Change opacity of image # Params in: $img: Image resource id # (int) $opacity: the opacity amount: 0-100, 100 being not opaque. # Params out: (bool) true on success, else false # Ref: http://www.php.net/manual/en/function.imagefilter.php#82162 # Notes: png only # { if ( ! isset($opacity)) { return false; } if ($opacity == 100) { return true; } $opacity /= 100; //get image width and height $w = imagesx($img); $h = imagesy($img); //turn alpha blending off imagealphablending($img, false); //find the most opaque pixel in the image (the one with the smallest alpha value) $minalpha = 127; for ($x = 0; $x < $w; $x++) { for ($y = 0; $y < $h; $y++) { $alpha = (imagecolorat($img, $x, $y) >> 24) & 0xFF; if ($alpha < $minalpha) { $minalpha = $alpha; } } } //loop through image pixels and modify alpha for each for ($x = 0; $x < $w; $x++) { for ($y = 0; $y < $h; $y++) { //get current alpha value (represents the TANSPARENCY!) $colorxy = imagecolorat($img, $x, $y); $alpha = ($colorxy >> 24) & 0xFF; //calculate new alpha if ($minalpha !== 127) { $alpha = 127 + 127 * $opacity * ($alpha - 127) / (127 - $minalpha); } else { $alpha += 127 * $opacity; } //get the color index with new alpha $alphacolorxy = imagecolorallocatealpha($img, ($colorxy >> 16) & 0xFF, ($colorxy >> 8) & 0xFF, $colorxy & 0xFF, $alpha); //set pixel with the new color + opacity if ( ! imagesetpixel($img, $x, $y, $alphacolorxy)) { return false; } } } return true; } ## -------------------------------------------------------- private function openImage($file) # Author: Jarrod Oberto # Date: 27-02-08 # Purpose: # Param in: # Param out: n/a # Reference: # Notes: # { if ( ! file_exists($file) && ! $this->checkStringStartsWith('http://', $file) && ! $this->checkStringStartsWith('https://', $file) ) { if ($this->debug) { throw new Exception('Image not found.'); } else { throw new Exception(); } }; // *** Get extension $extension = strrchr($file, '.'); $extension = fix_strtolower($extension); switch ($extension) { case '.jpg': case '.jpeg': $img = @imagecreatefromjpeg($file); break; case '.gif': $img = @imagecreatefromgif($file); break; case '.png': $img = @imagecreatefrompng($file); break; case '.bmp': $img = @$this->imagecreatefrombmp($file); break; case '.psd': $img = @$this->imagecreatefrompsd($file); break; // ... etc default: $img = false; break; } return $img; } ## -------------------------------------------------------- public function reset() # # Author: Jarrod Oberto # Date: 30-08-11 # Purpose: Reset the resource (allow further editing) # Params in: # Params out: # Notes: # { $this->__construct($this->fileName); } ## -------------------------------------------------------- public function saveImage($savePath, $imageQuality = "100") # Author: Jarrod Oberto # Date: 27-02-08 # Purpose: Saves the image # Param in: $savePath: Where to save the image including filename: # $imageQuality: image quality you want the image saved at 0-100 # Param out: n/a # Reference: # Notes: * gif doesn't have a quality parameter # * jpg has a quality setting 0-100 (100 being the best) # * png has a quality setting 0-9 (0 being the best) # # * bmp files have no native support for bmp files. We use a # third party class to save as bmp. { // *** Perform a check or two. if ( ! is_resource($this->imageResized)) { if ($this->debug) { throw new Exception('saveImage: This is not a resource.'); } else { throw new Exception(); } } $fileInfoArray = pathInfo($savePath); clearstatcache(); if ( ! is_writable($fileInfoArray['dirname'])) { if ($this->debug) { throw new Exception('The path is not writable. Please check your permissions.'); } else { throw new Exception(); } } // *** Get extension $extension = strrchr($savePath, '.'); $extension = fix_strtolower($extension); $error = ''; switch ($extension) { case '.jpg': case '.jpeg': $this->checkInterlaceImage($this->isInterlace); if (imagetypes() & IMG_JPG) { imagejpeg($this->imageResized, $savePath, $imageQuality); } else { $error = 'jpg'; } break; case '.gif': $this->checkInterlaceImage($this->isInterlace); if (imagetypes() & IMG_GIF) { imagegif($this->imageResized, $savePath); } else { $error = 'gif'; } break; case '.png': // *** Scale quality from 0-100 to 0-9 $scaleQuality = round(($imageQuality / 100) * 9); // *** Invert qualit setting as 0 is best, not 9 $invertScaleQuality = 9 - $scaleQuality; $this->checkInterlaceImage($this->isInterlace); if (imagetypes() & IMG_PNG) { imagepng($this->imageResized, $savePath, $invertScaleQuality); } else { $error = 'png'; } break; case '.bmp': file_put_contents($savePath, $this->GD2BMPstring($this->imageResized)); break; // ... etc default: // *** No extension - No save. $this->errorArray[] = 'This file type (' . $extension . ') is not supported. File not saved.'; break; } //imagedestroy($this->imageResized); // *** Display error if a file type is not supported. if ($error != '') { $this->errorArray[] = $error . ' support is NOT enabled. File not saved.'; } } ## -------------------------------------------------------- public function displayImage($fileType = 'jpg', $imageQuality = "100") # Author: Jarrod Oberto # Date: 18-11-09 # Purpose: Display images directly to the browser # Param in: The image type you want to display # Param out: # Reference: # Notes: # { if ( ! is_resource($this->imageResized)) { if ($this->debug) { throw new Exception('saveImage: This is not a resource.'); } else { throw new Exception(); } } switch ($fileType) { case 'jpg': case 'jpeg': header('Content-type: image/jpeg'); imagejpeg($this->imageResized, '', $imageQuality); break; case 'gif': header('Content-type: image/gif'); imagegif($this->imageResized); break; case 'png': header('Content-type: image/png'); // *** Scale quality from 0-100 to 0-9 $scaleQuality = round(($imageQuality / 100) * 9); // *** Invert qualit setting as 0 is best, not 9 $invertScaleQuality = 9 - $scaleQuality; imagepng($this->imageResized, '', $invertScaleQuality); break; case 'bmp': echo 'bmp file format is not supported.'; break; // ... etc default: // *** No extension - No save. break; } //imagedestroy($this->imageResized); } ## -------------------------------------------------------- public function setTransparency($bool) # Sep 2011 { $this->keepTransparency = $bool; } ## -------------------------------------------------------- public function setFillColor($value) # Sep 2011 # Param in: (mixed) $value: (array) Could be an array of RGB # (str) Could be hex #ffffff or #fff, fff, ffffff # # If the keepTransparency is set to false, then no transparency is to be used. # This is ideal when you want to save as jpg. # # this method allows you to set the background color to use instead of # transparency. # { $colorArray = $this->formatColor($value); $this->fillColorArray = $colorArray; } ## -------------------------------------------------------- public function setCropFromTop($value) # Sep 2011 { $this->cropFromTopPercent = $value; } ## -------------------------------------------------------- public function testGDInstalled() # Author: Jarrod Oberto # Date: 27-02-08 # Purpose: Test to see if GD is installed # Param in: n/a # Param out: (bool) True is gd extension loaded otherwise false # Reference: # Notes: # { if (extension_loaded('gd') && function_exists('gd_info')) { $gdInstalled = true; } else { $gdInstalled = false; } return $gdInstalled; } ## -------------------------------------------------------- public function testEXIFInstalled() # Author: Jarrod Oberto # Date: 08-05-11 # Purpose: Test to see if EXIF is installed # Param in: n/a # Param out: (bool) True is exif extension loaded otherwise false # Reference: # Notes: # { if (extension_loaded('exif')) { $exifInstalled = true; } else { $exifInstalled = false; } return $exifInstalled; } ## -------------------------------------------------------- public function testIsImage($image) # Author: Jarrod Oberto # Date: 27-02-08 # Purpose: Test if file is an image # Param in: n/a # Param out: n/a # Reference: # Notes: # { if ($image) { $fileIsImage = true; } else { $fileIsImage = false; } return $fileIsImage; } ## -------------------------------------------------------- public function testFunct() # Author: Jarrod Oberto # Date: 27-02-08 # Purpose: Test Function # Param in: n/a # Param out: n/a # Reference: # Notes: # { echo $this->height; } ## -------------------------------------------------------- public function setForceStretch($value) # Author: Jarrod Oberto # Date: 23-12-10 # Purpose: # Param in: (bool) $value # Param out: n/a # Reference: # Notes: # { $this->forceStretch = $value; } ## -------------------------------------------------------- public function setFile($fileName) # Author: Jarrod Oberto # Date: 28-02-08 # Purpose: # Param in: n/a # Param out: n/a # Reference: # Notes: # { self::__construct($fileName); } ## -------------------------------------------------------- public function getFileName() # Author: Jarrod Oberto # Date: 10-09-08 # Purpose: # Param in: n/a # Param out: n/a # Reference: # Notes: # { return $this->fileName; } ## -------------------------------------------------------- public function getHeight() { return $this->height; } ## -------------------------------------------------------- public function getWidth() { return $this->width; } ## -------------------------------------------------------- public function getOriginalHeight() { return $this->heightOriginal; } ## -------------------------------------------------------- public function getOriginalWidth() { return $this->widthOriginal; } ## -------------------------------------------------------- public function getErrors() # Author: Jarrod Oberto # Date: 19-11-09 # Purpose: Returns the error array # Param in: n/a # Param out: Array of errors # Reference: # Notes: # { return $this->errorArray; } ## -------------------------------------------------------- private function checkInterlaceImage($isEnabled) # jpg will use progressive (they don't use interace) { if ($isEnabled) { imageinterlace($this->imageResized, $isEnabled); } } ## -------------------------------------------------------- protected function formatColor($value) # Author: Jarrod Oberto # Date: 09-05-11 # Purpose: Determine color method passed in and return color as RGB # Param in: (mixed) $value: (array) Could be an array of RGB # (str) Could be hex #ffffff or #fff, fff, ffffff # Param out: # Reference: # Notes: # { $rgbArray = array(); // *** If it's an array it should be R, G, B if (is_array($value)) { if (key($value) == 0 && count($value) == 3) { $rgbArray['r'] = $value[0]; $rgbArray['g'] = $value[1]; $rgbArray['b'] = $value[2]; } else { $rgbArray = $value; } } else { if (fix_strtolower($value) == 'transparent') { $rgbArray = array( 'r' => 255, 'g' => 255, 'b' => 255, 'a' => 127 ); } else { // *** ...Else it should be hex. Let's make it RGB $rgbArray = $this->hex2dec($value); } } return $rgbArray; } ## -------------------------------------------------------- function hex2dec($hex) # Purpose: Convert #hex color to RGB { $color = str_replace('#', '', $hex); if (strlen($color) == 3) { $color = $color . $color; } $rgb = array( 'r' => hexdec(substr($color, 0, 2)), 'g' => hexdec(substr($color, 2, 2)), 'b' => hexdec(substr($color, 4, 2)), 'a' => 0 ); return $rgb; } ## -------------------------------------------------------- private function createImageColor($colorArray) { $r = $colorArray['r']; $g = $colorArray['g']; $b = $colorArray['b']; return imagecolorallocate($this->imageResized, $r, $g, $b); } ## -------------------------------------------------------- private function testColorExists($colorArray) { $r = $colorArray['r']; $g = $colorArray['g']; $b = $colorArray['b']; if (imagecolorexact($this->imageResized, $r, $g, $b) == -1) { return false; } else { return true; } } ## -------------------------------------------------------- private function findUnusedGreen() # Purpose: We find a green color suitable to use like green-screen effect. # Therefore, the color must not exist in the image. { $green = 255; do { $greenChroma = array( 0, $green, 0 ); $colorArray = $this->formatColor($greenChroma); $match = $this->testColorExists($colorArray); $green--; } while ($match == false && $green > 0); // *** If no match, just bite the bullet and use green value of 255 if ( ! $match) { $greenChroma = array( 0, $green, 0 ); } return $greenChroma; } ## -------------------------------------------------------- private function findUnusedBlue() # Purpose: We find a green color suitable to use like green-screen effect. # Therefore, the color must not exist in the image. { $blue = 255; do { $blueChroma = array( 0, 0, $blue ); $colorArray = $this->formatColor($blueChroma); $match = $this->testColorExists($colorArray); $blue--; } while ($match == false && $blue > 0); // *** If no match, just bite the bullet and use blue value of 255 if ( ! $match) { $blueChroma = array( 0, 0, $blue ); } return $blueChroma; } ## -------------------------------------------------------- private function invertTransparency($value, $originalMax, $invert = true) # Purpose: This does two things: # 1) Convert the range from 0-127 to 0-100 # 2) Inverts value to 100 is not transparent while 0 is fully # transparent (like Photoshop) { // *** Test max range if ($value > $originalMax) { $value = $originalMax; } // *** Test min range if ($value < 0) { $value = 0; } if ($invert) { return $originalMax - (($value / 100) * $originalMax); } else { return ($value / 100) * $originalMax; } } ## -------------------------------------------------------- private function transparentImage($src) { // *** making images with white bg transparent $r1 = 0; $g1 = 255; $b1 = 0; for ($x = 0; $x < imagesx($src); ++$x) { for ($y = 0; $y < imagesy($src); ++$y) { $color = imagecolorat($src, $x, $y); $r = ($color >> 16) & 0xFF; $g = ($color >> 8) & 0xFF; $b = $color & 0xFF; for ($i = 0; $i < 270; $i++) { //if ($r . $g . $b == ($r1 + $i) . ($g1 + $i) . ($b1 + $i)) { if ($r == 0 && $g == 255 && $b == 0) { //if ($g == 255) { $trans_colour = imagecolorallocatealpha($src, 0, 0, 0, 127); imagefill($src, $x, $y, $trans_colour); } } } } return $src; } ## -------------------------------------------------------- function checkStringStartsWith($needle, $haystack) # Check if a string starts with a specific pattern { return (substr($haystack, 0, strlen($needle)) == $needle); } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- BMP SUPPORT (SAVING) - James Heinrich *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ private function GD2BMPstring(&$gd_image) # Author: James Heinrich # Purpose: Save file as type bmp # Param in: The image canvas (passed as ref) # Param out: # Reference: # Notes: This code was stripped out of two external files # (phpthumb.bmp.php,phpthumb.functions.php) and added below to # avoid dependancies. # { $imageX = ImageSX($gd_image); $imageY = ImageSY($gd_image); $BMP = ''; for ($y = ($imageY - 1); $y >= 0; $y--) { $thisline = ''; for ($x = 0; $x < $imageX; $x++) { $argb = $this->GetPixelColor($gd_image, $x, $y); $thisline .= chr($argb['blue']) . chr($argb['green']) . chr($argb['red']); } while (strlen($thisline) % 4) { $thisline .= "\x00"; } $BMP .= $thisline; } $bmpSize = strlen($BMP) + 14 + 40; // BITMAPFILEHEADER [14 bytes] - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_62uq.asp $BITMAPFILEHEADER = 'BM'; // WORD bfType; $BITMAPFILEHEADER .= $this->LittleEndian2String($bmpSize, 4); // DWORD bfSize; $BITMAPFILEHEADER .= $this->LittleEndian2String(0, 2); // WORD bfReserved1; $BITMAPFILEHEADER .= $this->LittleEndian2String(0, 2); // WORD bfReserved2; $BITMAPFILEHEADER .= $this->LittleEndian2String(54, 4); // DWORD bfOffBits; // BITMAPINFOHEADER - [40 bytes] http://msdn.microsoft.com/library/en-us/gdi/bitmaps_1rw2.asp $BITMAPINFOHEADER = $this->LittleEndian2String(40, 4); // DWORD biSize; $BITMAPINFOHEADER .= $this->LittleEndian2String($imageX, 4); // LONG biWidth; $BITMAPINFOHEADER .= $this->LittleEndian2String($imageY, 4); // LONG biHeight; $BITMAPINFOHEADER .= $this->LittleEndian2String(1, 2); // WORD biPlanes; $BITMAPINFOHEADER .= $this->LittleEndian2String(24, 2); // WORD biBitCount; $BITMAPINFOHEADER .= $this->LittleEndian2String(0, 4); // DWORD biCompression; $BITMAPINFOHEADER .= $this->LittleEndian2String(0, 4); // DWORD biSizeImage; $BITMAPINFOHEADER .= $this->LittleEndian2String(2835, 4); // LONG biXPelsPerMeter; $BITMAPINFOHEADER .= $this->LittleEndian2String(2835, 4); // LONG biYPelsPerMeter; $BITMAPINFOHEADER .= $this->LittleEndian2String(0, 4); // DWORD biClrUsed; $BITMAPINFOHEADER .= $this->LittleEndian2String(0, 4); // DWORD biClrImportant; return $BITMAPFILEHEADER . $BITMAPINFOHEADER . $BMP; } ## -------------------------------------------------------- private function GetPixelColor(&$img, $x, $y) # Author: James Heinrich # Purpose: # Param in: # Param out: # Reference: # Notes: # { if ( ! is_resource($img)) { return false; } return @ImageColorsForIndex($img, @ImageColorAt($img, $x, $y)); } ## -------------------------------------------------------- private function LittleEndian2String($number, $minbytes = 1) # Author: James Heinrich # Purpose: BMP SUPPORT (SAVING) # Param in: # Param out: # Reference: # Notes: # { $intstring = ''; while ($number > 0) { $intstring = $intstring . chr($number & 255); $number >>= 8; } return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT); } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- BMP SUPPORT (READING) *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ private function ImageCreateFromBMP($filename) # Author: DHKold # Date: The 15th of June 2005 # Version: 2.0B # Purpose: To create an image from a BMP file. # Param in: BMP file to open. # Param out: Return a resource like the other ImageCreateFrom functions # Reference: http://us3.php.net/manual/en/function.imagecreate.php#53879 # Bug fix: Author: domelca at terra dot es # Date: 06 March 2008 # Fix: Correct 16bit BMP support # Notes: # { //Ouverture du fichier en mode binaire if ( ! $f1 = fopen($filename, "rb")) { return false; } //1 : Chargement des ent�tes FICHIER $FILE = unpack("vfile_type/Vfile_size/Vreserved/Vbitmap_offset", fread($f1, 14)); if ($FILE['file_type'] != 19778) { return false; } //2 : Chargement des ent�tes BMP $BMP = unpack('Vheader_size/Vwidth/Vheight/vplanes/vbits_per_pixel' . '/Vcompression/Vsize_bitmap/Vhoriz_resolution' . '/Vvert_resolution/Vcolors_used/Vcolors_important', fread($f1, 40)); $BMP['colors'] = pow(2, $BMP['bits_per_pixel']); if ($BMP['size_bitmap'] == 0) { $BMP['size_bitmap'] = $FILE['file_size'] - $FILE['bitmap_offset']; } $BMP['bytes_per_pixel'] = $BMP['bits_per_pixel'] / 8; $BMP['bytes_per_pixel2'] = ceil($BMP['bytes_per_pixel']); $BMP['decal'] = ($BMP['width'] * $BMP['bytes_per_pixel'] / 4); $BMP['decal'] -= floor($BMP['width'] * $BMP['bytes_per_pixel'] / 4); $BMP['decal'] = 4 - (4 * $BMP['decal']); if ($BMP['decal'] == 4) { $BMP['decal'] = 0; } //3 : Chargement des couleurs de la palette $PALETTE = array(); if ($BMP['colors'] < 16777216) { $PALETTE = unpack('V' . $BMP['colors'], fread($f1, $BMP['colors'] * 4)); } //4 : Cr�ation de l'image $IMG = fread($f1, $BMP['size_bitmap']); $VIDE = chr(0); $res = imagecreatetruecolor($BMP['width'], $BMP['height']); $P = 0; $Y = $BMP['height'] - 1; while ($Y >= 0) { $X = 0; while ($X < $BMP['width']) { if ($BMP['bits_per_pixel'] == 24) { $COLOR = unpack("V", substr($IMG, $P, 3) . $VIDE); } elseif ($BMP['bits_per_pixel'] == 16) { /* * BMP 16bit fix * ================= * * Ref: http://us3.php.net/manual/en/function.imagecreate.php#81604 * * Notes: * "don't work with bmp 16 bits_per_pixel. change pixel * generator for this." * */ // *** Original code (don't work) //$COLOR = unpack("n",substr($IMG,$P,2)); //$COLOR[1] = $PALETTE[$COLOR[1]+1]; $COLOR = unpack("v", substr($IMG, $P, 2)); $blue = ($COLOR[1] & 0x001f) << 3; $green = ($COLOR[1] & 0x07e0) >> 3; $red = ($COLOR[1] & 0xf800) >> 8; $COLOR[1] = $red * 65536 + $green * 256 + $blue; } elseif ($BMP['bits_per_pixel'] == 8) { $COLOR = unpack("n", $VIDE . substr($IMG, $P, 1)); $COLOR[1] = $PALETTE[ $COLOR[1] + 1 ]; } elseif ($BMP['bits_per_pixel'] == 4) { $COLOR = unpack("n", $VIDE . substr($IMG, floor($P), 1)); if (($P * 2) % 2 == 0) { $COLOR[1] = ($COLOR[1] >> 4); } else { $COLOR[1] = ($COLOR[1] & 0x0F); } $COLOR[1] = $PALETTE[ $COLOR[1] + 1 ]; } elseif ($BMP['bits_per_pixel'] == 1) { $COLOR = unpack("n", $VIDE . substr($IMG, floor($P), 1)); if (($P * 8) % 8 == 0) { $COLOR[1] = $COLOR[1] >> 7; } elseif (($P * 8) % 8 == 1) { $COLOR[1] = ($COLOR[1] & 0x40) >> 6; } elseif (($P * 8) % 8 == 2) { $COLOR[1] = ($COLOR[1] & 0x20) >> 5; } elseif (($P * 8) % 8 == 3) { $COLOR[1] = ($COLOR[1] & 0x10) >> 4; } elseif (($P * 8) % 8 == 4) { $COLOR[1] = ($COLOR[1] & 0x8) >> 3; } elseif (($P * 8) % 8 == 5) { $COLOR[1] = ($COLOR[1] & 0x4) >> 2; } elseif (($P * 8) % 8 == 6) { $COLOR[1] = ($COLOR[1] & 0x2) >> 1; } elseif (($P * 8) % 8 == 7) { $COLOR[1] = ($COLOR[1] & 0x1); } $COLOR[1] = $PALETTE[ $COLOR[1] + 1 ]; } else { return false; } imagesetpixel($res, $X, $Y, $COLOR[1]); $X++; $P += $BMP['bytes_per_pixel']; } $Y--; $P += $BMP['decal']; } //Fermeture du fichier fclose($f1); return $res; } /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*- PSD SUPPORT (READING) *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-**-*-*-*-*-*-*-*-*-*-*-*-*-*/ private function imagecreatefrompsd($fileName) # Author: Tim de Koning # Version: 1.3 # Purpose: To create an image from a PSD file. # Param in: PSD file to open. # Param out: Return a resource like the other ImageCreateFrom functions # Reference: http://www.kingsquare.nl/phppsdreader # Notes: # { if (file_exists($this->psdReaderPath)) { include_once($this->psdReaderPath); $psdReader = new PhpPsdReader($fileName); if (isset($psdReader->infoArray['error'])) { return ''; } else { return $psdReader->getImage(); } } else { return false; } } ## -------------------------------------------------------- public function __destruct() { if (is_resource($this->imageResized)) { imagedestroy($this->imageResized); } } ## -------------------------------------------------------- } /* * Example with some API calls (outdated): * * * =============================== * Compulsary * =============================== * * include("classes/resize_class.php"); * * // *** Initialise object * $magicianObj = new resize('images/cars/large/a.jpg'); * * // *** Turn off stretching (optional) * $magicianObj -> setForceStretch(false); * * // *** Resize object * $magicianObj -> resizeImage(150, 100, 0); * * =============================== * Image options - can run none, one, or all. * =============================== * * // *** Add watermark * $magicianObj -> addWatermark('stamp.png'); * * // *** Add text * $magicianObj -> addText('testing...'); * * =============================== * Output options - can run one, or the other, or both. * =============================== * * // *** Save image to disk * $magicianObj -> saveImage('images/cars/large/b.jpg', 100); * * // *** Or output to screen (params in can be jpg, gif, png) * $magicianObj -> displayImage('png'); * * =============================== * Return options - return errors. nice for debuggin. * =============================== * * // *** Return error array * $errorArray = $magicianObj -> getErrors(); * * * =============================== * Cleanup options - not really neccessary, but good practice * =============================== * * // *** Free used memory * $magicianObj -> __destruct(); */ |