Changes a lot... forgot to commit.

src/_h5ai/php/inc/Image.php

@@ -0,0 +1,203 @@
+<?php
+
+class Image {
+
+    private $sourceFile;
+    private $source;
+    private $width;
+    private $height;
+    private $type;
+
+    private $dest;
+
+
+    public static function isUsable() {
+
+        return GD_VERSION != "GD_VERSION";
+    }
+
+
+    public static function showImage($filename) {
+
+        $image = file_get_contents($filename);
+        header("content-type: image");
+        echo $image;
+    }
+
+
+    public function __construct($filename = null) {
+
+        $this->sourceFile = null;
+        $this->source = null;
+        $this->width = null;
+        $this->height = null;
+        $this->type = null;
+
+        $this->dest = null;
+
+        $this->setSource($filename);
+    }
+
+
+    public function __destruct() {
+
+        $this->releaseSource();
+        $this->releaseDest();
+    }
+
+
+    public function setSource($filename) {
+
+        $this->releaseSource();
+        $this->releaseDest();
+
+        if (is_null($filename)) {
+            return;
+        }
+
+        $this->sourceFile = $filename;
+
+        list($this->width, $this->height, $this->type) = getimagesize($this->sourceFile);
+
+        $this->source = imagecreatefromstring(file_get_contents($this->sourceFile));
+    }
+
+
+    public function showDest() {
+
+        if (!is_null($this->dest)) {
+            header("Content-type: image/jpeg");
+            imagejpeg($this->dest, null, 100);
+        }
+    }
+
+
+    public function saveDest($filename) {
+
+        if (!is_null($this->dest)) {
+            @imagejpeg($this->dest, $filename, 90);
+            @chmod($filename, 0775);
+        }
+    }
+
+
+    public function releaseDest() {
+
+        if (!is_null($this->dest)) {
+            imagedestroy($this->dest);
+            $this->dest = null;
+        }
+    }
+
+
+    public function releaseSource() {
+
+        if (!is_null($this->source)) {
+            imagedestroy($this->source);
+            $this->sourceFile = null;
+            $this->source = null;
+            $this->width = null;
+            $this->height = null;
+            $this->type = null;
+        }
+    }
+
+
+    private function magic($destX, $destY, $srcX, $srcY, $destWidth, $destHeight, $srcWidth, $srcHeight, $canWidth = null, $canHeight = null, $color = null) {
+
+        if (!is_null($canWidth) && !is_null($canHeight)) {
+            $this->dest = imagecreatetruecolor($canWidth, $canHeight);
+        } else {
+            $this->dest = imagecreatetruecolor($destWidth, $destHeight);
+        }
+
+        if (is_null($color)) {
+            $color = array(255, 255, 255);
+        }
+        $icol = imagecolorallocate($this->dest, $color[0], $color[1], $color[2]);
+        imagefill($this->dest, 0, 0, $icol);
+
+        imagecopyresampled($this->dest, $this->source, $destX, $destY, $srcX, $srcY, $destWidth, $destHeight, $srcWidth, $srcHeight);
+    }
+
+
+    public function thumb($mode, $width, $height = null, $color = null) {
+
+        if ($height === null) {
+            $height = $width;
+        }
+        if ($mode === "square") {
+            $this->squareThumb($width);
+        } elseif ($mode === "rational") {
+            $this->rationalThumb($width, $height);
+        } elseif ($mode === "center") {
+            $this->centerThumb($width, $height, $color);
+        } else {
+            $this->freeThumb($width, $height);
+        }
+    }
+
+
+    public function squareThumb($width) {
+
+        $a = min($this->width, $this->height);
+        $x = intval(($this->width - $a) / 2);
+        $y = intval(($this->height - $a) / 2);
+
+        $this->magic(0, 0, $x, $y, $width, $width, $a, $a);
+    }
+
+
+    public function rationalThumb($width, $height) {
+
+        $r = 1.0 * $this->width / $this->height;
+
+        $h = $height;
+        $w = $r * $h;
+
+        if ($w > $width) {
+
+            $w = $width;
+            $h = 1.0 / $r * $w;
+        }
+
+        $w = intval($w);
+        $h = intval($h);
+
+        $this->magic(0, 0, 0, 0, $w, $h, $this->width, $this->height);
+    }
+
+
+    public function centerThumb($width, $height, $color = null) {
+
+        $r = 1.0 * $this->width / $this->height;
+
+        $h = $height;
+        $w = $r * $h;
+
+        if ($w > $width) {
+
+            $w = $width;
+            $h = 1.0 / $r * $w;
+        }
+
+        $w = intval($w);
+        $h = intval($h);
+
+        $x = intval(($width - $w) / 2);
+        $y = intval(($height - $h) / 2);
+
+        $this->magic($x, $y, 0, 0, $w, $h, $this->width, $this->height, $width, $height, $color);
+    }
+
+
+    public function freeThumb($width, $height) {
+
+        $w = intval($width);
+        $h = intval($height);
+
+        $this->magic(0, 0, 0, 0, $w, $h, $this->width, $this->height);
+    }
+}
+
+?>