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- <?php
- /* For licensing terms, see /license.txt */
- class image {
- var $bg;
- var $logo;
- var $logox;
- var $logoy;
- var $bgx;
- var $bgy;
- var $fontfile = './verdana';
- var $color;
- function image($bgfile = '') {
- image::addbackground($bgfile);
- }
- function createimagefromtype($file, $handler) {
- $size = api_getimagesize($file);
- $type = $size[2];
- switch ($type) {
- case 2 : $imhandler = @imagecreatefromjpeg($file); break;
- case 3 : $imhandler = @imagecreatefrompng($file); break;
- case 1 : $imhandler = @imagecreatefromgif($file); break;
- }
- $xtmpstr = $handler.'x';
- $ytmpstr = $handler.'y';
- $this->$xtmpstr = $size[0];
- $this->$ytmpstr = $size[1];
- return $imhandler;
- }
- function resize($thumbw, $thumbh, $border) {
- $size [0] = $this->bgx;
- $size [1] = $this->bgy;
- if ($border == 1) {
- $scale = min($thumbw / $size[0], $thumbh / $size[1]);
- $width = (int)($size[0] * $scale);
- $height = (int)($size[1] * $scale);
- $deltaw = (int)(($thumbw - $width) / 2);
- $deltah = (int)(($thumbh - $height) / 2);
- $dst_img = @ImageCreateTrueColor($thumbw, $thumbh);
- if (!empty($this->color)) {
- @imagefill($dst_img, 0, 0, $this->color);
- }
- $this->bgx = $thumbw;
- $this->bgy = $thumbh;
- }
- elseif ($border == 0) {
- $scale = ($size[0] > 0 && $size[1] > 0) ? min($thumbw / $size[0], $thumbh / $size[1]) : 0;
- $width = (int)($size[0] * $scale);
- $height = (int)($size[1] * $scale);
- $deltaw = 0;
- $deltah = 0;
- $dst_img = @ImageCreateTrueColor($width, $height);
- $this->bgx = $width;
- $this->bgy = $height;
- }
- $src_img = $this->bg;
- @ImageCopyResampled($dst_img, $src_img, $deltaw, $deltah, 0, 0, $width, $height, ImageSX($src_img), ImageSY($src_img));
- $this->bg=$dst_img;
- @imagedestroy($src_img);
- }
- function addbackground($bgfile) {
- if (!empty($bgfile) && file_exists($bgfile)) {
- $this->bg = image::createimagefromtype($bgfile, 'bg');
- @imagealphablending($this->bg, true);
- }
- }
- function addlogo($file) {
- $this->logo = image::createimagefromtype($file, 'logo');
- @imagealphablending($this->logo , true);
- $size = api_getimagesize($file);
- $this->logox = $size[0];
- $this->logoy = $size[1];
- }
- function mergelogo($x, $y, $alpha = 100) {
- if ($x < 0) $x = $this->bgx - $this->logox + $x;
- if ($y < 0) $y = $this->bgy - $this->logoy + $y;
- return @imagecopymerge($this->bg, $this->logo, $x, $y, 0, 0, $this->logox, $this->logoy, $alpha);
- }
- function makecolor($red, $green, $blue) {
- $this->color = @imagecolorallocate($this->bg, $red, $green, $blue);
- }
- function setfont($fontfile) {
- $this->fontfile = $fontfile;
- }
- function addtext ($text, $x = 0, $y = 0, $size = 12, $angle = 0) {
- putenv('GDFONTPATH=' . realpath('.'));
- $this->fontfile='verdana';
- $text= preg_replace('`(?<!\r)\n`', "\r\n", $text);
- $box = @imagettfbbox($size, $angle, $this->fontfile, $text);
- if ($x < 0) {
- $x = $this->bgx - max($box[2], $box[4]) + $x;
- } else {
- $x = max(-$box[0], -$box[6]) + $x;
- }
- if ($y < 0) {
- $y = $this->bgy - max($box[1], $box[3]) + $y;
- } else {
- $y = max(-$box[7], -$box[5]) + $y;
- }
- @imagettftext($this->bg, $size, $angle, $x, $y, $this->color, $this->fontfile , $text);
- }
- function send_image($type, $file = '', $compress = -1) {
- switch ($type) {
- case 'JPG':
- if (!$file) header("Content-type: image/jpeg");
- if ($compress == -1) $compress = 100;
- return imagejpeg($this->bg, $file, $compress);
- case 'PNG':
- if (!$file) header("Content-type: image/png");
- if ($compress != -1) {
- @imagetruecolortopalette($this->bg, true, $compress);
- }
- return imagepng($this->bg, $file, $compress);
- case 'GIF':
- if (!$file) header("Content-type: image/gif");
- if ($compress != -1) {
- @imagetruecolortopalette($this->bg, true, $compress);
- }
- return imagegif($this->bg, $file, $compress);
- default: return 0;
- }
- // TODO: Occupied memory is not released, because the following fragment of code is actually dead.
- @imagedestroy($this->bg);
- @imagedestroy($this->logo);
- }
- }
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