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extend/barcode/class/BCGDrawing.php

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+<?php
+/**
+ *--------------------------------------------------------------------
+ *
+ * Holds the drawing $im
+ * You can use get_im() to add other kind of form not held into these classes.
+ *
+ *--------------------------------------------------------------------
+ * Copyright (C) Jean-Sebastien Goupil
+ * http://www.barcodephp.com
+ */
+include_once('BCGBarcode.php');
+include_once('BCGColor.php');
+include_once('BCGDrawException.php');
+include_once('drawer/BCGDrawJPG.php');
+include_once('drawer/BCGDrawPNG.php');
+
+class BCGDrawing {
+    const IMG_FORMAT_PNG = 1;
+    const IMG_FORMAT_JPEG = 2;
+    const IMG_FORMAT_GIF = 3;
+    const IMG_FORMAT_WBMP = 4;
+
+    private $w, $h;         // int
+    private $color;         // BCGColor
+    private $filename;      // char *
+    private $im;            // {object}
+    private $barcode;       // BCGBarcode
+    private $dpi;           // float
+    private $rotateDegree;  // float
+
+    /**
+     * Constructor.
+     *
+     * @param int $w
+     * @param int $h
+     * @param string filename
+     * @param BCGColor $color
+     */
+    public function __construct($filename = null, BCGColor $color) {
+        $this->im = null;
+        $this->setFilename($filename);
+        $this->color = $color;
+        $this->dpi = null;
+        $this->rotateDegree = 0.0;
+    }
+
+    /**
+     * Destructor.
+     */
+    public function __destruct() {
+        $this->destroy();
+    }
+
+    /**
+     * Gets the filename.
+     *
+     * @return string
+     */
+    public function getFilename() {
+        return $this->filename;
+    }
+
+    /**
+     * Sets the filename.
+     *
+     * @param string $filaneme
+     */
+    public function setFilename($filename) {
+        $this->filename = $filename;
+    }
+
+    /**
+     * @return resource.
+     */
+    public function get_im() {
+        return $this->im;
+    }
+
+    /**
+     * Sets the image.
+     *
+     * @param resource $im
+     */
+    public function set_im($im) {
+        $this->im = $im;
+    }
+
+    /**
+     * Gets Barcode for drawing.
+     *
+     * @return BCGBarcode
+     */
+    public function getBarcode() {
+        return $this->barcode;
+    }
+
+    /**
+     * Sets Barcode for drawing.
+     *
+     * @param BCGBarcode $Barcode
+     */
+    public function setBarcode(BCGBarcode $barcode) {
+        $this->barcode = $barcode;
+    }
+
+    /**
+     * Gets the DPI for supported filetype.
+     *
+     * @return float
+     */
+    public function getDPI() {
+        return $this->dpi;
+    }
+
+    /**
+     * Sets the DPI for supported filetype.
+     *
+     * @param float $dpi
+     */
+    public function setDPI($dpi) {
+        $this->dpi = $dpi;
+    }
+
+    /**
+     * Gets the rotation angle in degree clockwise.
+     *
+     * @return float
+     */
+    public function getRotationAngle() {
+        return $this->rotateDegree;
+    }
+
+    /**
+     * Sets the rotation angle in degree clockwise.
+     *
+     * @param float $degree
+     */
+    public function setRotationAngle($degree) {
+        $this->rotateDegree = (float)$degree;
+    }
+
+    /**
+     * Draws the Barcode on the image $im.
+     */
+    public function draw() {
+        $size = $this->barcode->getDimension(0, 0);
+        $this->w = max(1, $size[0]);
+        $this->h = max(1, $size[1]);
+        $this->init();
+        $this->barcode->draw($this->im);
+    }
+
+    /**
+     * Saves $im into the file (many format available).
+     *
+     * @param int $image_style
+     * @param int $quality
+     */
+    public function finish($image_style = self::IMG_FORMAT_PNG, $quality = 100) {
+        $drawer = null;
+
+        $im = $this->im;
+        if ($this->rotateDegree > 0.0) {
+            if (function_exists('imagerotate')) {
+                $im = imagerotate($this->im, 360 - $this->rotateDegree, $this->color->allocate($this->im));
+            } else {
+                throw new BCGDrawException('The method imagerotate doesn\'t exist on your server. Do not use any rotation.');
+            }
+        }
+
+        if ($image_style === self::IMG_FORMAT_PNG) {
+            $drawer = new BCGDrawPNG($im);
+            $drawer->setFilename($this->filename);
+            $drawer->setDPI($this->dpi);
+        } elseif ($image_style === self::IMG_FORMAT_JPEG) {
+            $drawer = new BCGDrawJPG($im);
+            $drawer->setFilename($this->filename);
+            $drawer->setDPI($this->dpi);
+            $drawer->setQuality($quality);
+        } elseif ($image_style === self::IMG_FORMAT_GIF) {
+            // Some PHP versions have a bug if passing 2nd argument as null.
+            if ($this->filename === null || $this->filename === '') {
+                imagegif($im);
+            } else {
+                imagegif($im, $this->filename);
+            }
+        } elseif ($image_style === self::IMG_FORMAT_WBMP) {
+            imagewbmp($im, $this->filename);
+        }
+
+        if ($drawer !== null) {
+            $drawer->draw();
+        }
+    }
+
+    /**
+     * Writes the Error on the picture.
+     *
+     * @param Exception $exception
+     */
+    public function drawException($exception) {
+        $this->w = 1;
+        $this->h = 1;
+        $this->init();
+
+        // Is the image big enough?
+        $w = imagesx($this->im);
+        $h = imagesy($this->im);
+
+        $text = 'Error: ' . $exception->getMessage();
+
+        $width = imagefontwidth(2) * strlen($text);
+        $height = imagefontheight(2);
+        if ($width > $w || $height > $h) {
+            $width = max($w, $width);
+            $height = max($h, $height);
+
+            // We change the size of the image
+            $newimg = imagecreatetruecolor($width, $height);
+            imagefill($newimg, 0, 0, imagecolorat($this->im, 0, 0));
+            imagecopy($newimg, $this->im, 0, 0, 0, 0, $w, $h);
+            $this->im = $newimg;
+        }
+
+        $black = new BCGColor('black');
+        imagestring($this->im, 2, 0, 0, $text, $black->allocate($this->im));
+    }
+
+    /**
+     * Free the memory of PHP (called also by destructor).
+     */
+    public function destroy() {
+        @imagedestroy($this->im);
+    }
+
+    /**
+     * Init Image and color background.
+     */
+    private function init() {
+        if ($this->im === null) {
+            $this->im = imagecreatetruecolor($this->w, $this->h)
+            or die('Can\'t Initialize the GD Libraty');
+            imagefilledrectangle($this->im, 0, 0, $this->w - 1, $this->h - 1, $this->color->allocate($this->im));
+        }
+    }
+}
+?>