git-svn-id: https://msi/svn/firstRepo/Service/branches/Slim3@40 0f545695-f87b-41b6-9a03-7f16563b5454

SimpleImage.php

@@ -0,0 +1,104 @@
+<?php
+
+class SimpleImage {
+
+    var $image;
+    var $image_type;
+
+    function load($filename) {
+        $image_info = getimagesize($filename);
+        $this->image_type = $image_info[2];
+        if ($this->image_type == IMAGETYPE_JPEG) {
+            $this->image = imagecreatefromjpeg($filename);
+        } elseif ($this->image_type == IMAGETYPE_GIF) {
+            $this->image = imagecreatefromgif($filename);
+        } elseif ($this->image_type == IMAGETYPE_PNG) {
+            $this->image = imagecreatefrompng($filename);
+        }
+    }
+
+    function saveas($filename, $image_type = IMAGETYPE_JPEG, $compression = 75, $permissions = null) {
+        if ($image_type == IMAGETYPE_JPEG) {
+            imagejpeg($this->image, $filename, $compression);
+        } elseif ($image_type == IMAGETYPE_GIF) {
+            imagegif($this->image, $filename);
+        } elseif ($image_type == IMAGETYPE_PNG) {
+            imagepng($this->image, $filename);
+        } if ($permissions != null) {
+            chmod($filename, $permissions);
+        }
+    }
+    
+    function save($filename) {
+        if ($this->image_type == IMAGETYPE_JPEG) {
+            imagejpeg($this->image, $filename);
+        } elseif ($this->image_type == IMAGETYPE_GIF) {
+            imagegif($this->image, $filename);
+        } elseif ($this->image_type == IMAGETYPE_PNG) {
+            imagepng($this->image, $filename);
+        }
+    }
+
+    function output($image_type = IMAGETYPE_JPEG) {
+        if ($image_type == IMAGETYPE_JPEG) {
+            imagejpeg($this->image);
+        } elseif ($image_type == IMAGETYPE_GIF) {
+            imagegif($this->image);
+        } elseif ($image_type == IMAGETYPE_PNG) {
+            imagepng($this->image);
+        }
+    }
+
+    function getWidth() {
+        return imagesx($this->image);
+    }
+
+    function getHeight() {
+        return imagesy($this->image);
+    }
+
+    function resizeToHeight($height) {
+        $ratio = $height / $this->getHeight();
+        $width = $this->getWidth() * $ratio;
+        $this->resize($width, $height);
+    }
+
+    function resizeToWidth($width) {
+        $ratio = $width / $this->getWidth();
+        $height = $this->getheight() * $ratio;
+        $this->resize($width, $height);
+    }
+
+    function scale($scale) {
+        $width = $this->getWidth() * $scale / 100;
+        $height = $this->getheight() * $scale / 100;
+        $this->resize($width, $height);
+    }
+
+    function resize($width, $height) {
+        $new_image = imagecreatetruecolor($width, $height);
+        if ($this->image_type == IMAGETYPE_GIF || $this->image_type == IMAGETYPE_PNG) {
+            $current_transparent = imagecolortransparent($this->image);
+            if ($current_transparent != -1) {
+                $transparent_color = imagecolorsforindex($this->image, $current_transparent);
+                $current_transparent = imagecolorallocate($new_image, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
+                imagefill($new_image, 0, 0, $current_transparent);
+                imagecolortransparent($new_image, $current_transparent);
+            } elseif ($this->image_type == IMAGETYPE_PNG) {
+                imagealphablending($new_image, false);
+                $color = imagecolorallocatealpha($new_image, 0, 0, 0, 127);
+                imagefill($new_image, 0, 0, $color);
+                imagesavealpha($new_image, true);
+            }
+        }
+        imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
+        $this->image = $new_image;
+    }
+    
+    function close()
+    {
+        imagedestroy($this->image);
+    }
+}
+
+?>