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extend/barcode/class/BCGColor.php

@@ -0,0 +1,154 @@
+<?php
+/**
+ *--------------------------------------------------------------------
+ *
+ * Holds Color in RGB Format.
+ *
+ *--------------------------------------------------------------------
+ * Copyright (C) Jean-Sebastien Goupil
+ * http://www.barcodephp.com
+ */
+class BCGColor {
+    protected $r, $g, $b;    // int Hexadecimal Value
+    protected $transparent;
+
+    /**
+     * Save RGB value into the classes.
+     *
+     * There are 4 way to associate color with this classes :
+     *  1. Gives 3 parameters int (R, G, B)
+     *  2. Gives 1 parameter string hex value (#ff0000) (preceding with #)
+     *  3. Gives 1 parameter int hex value (0xff0000)
+     *  4. Gives 1 parameter string color code (white, black, orange...)
+     *
+     * @param mixed ...
+     */
+    public function __construct() {
+        $args = func_get_args();
+        $c = count($args);
+        if ($c === 3) {
+            $this->r = intval($args[0]);
+            $this->g = intval($args[1]);
+            $this->b = intval($args[2]);
+        } elseif ($c === 1) {
+            if (is_string($args[0]) && strlen($args[0]) === 7 && $args[0][0] === '#') {        // Hex Value in String
+                $this->r = intval(substr($args[0], 1, 2), 16);
+                $this->g = intval(substr($args[0], 3, 2), 16);
+                $this->b = intval(substr($args[0], 5, 2), 16);
+            } else {
+                if (is_string($args[0])) {
+                    $args[0] = self::getColor($args[0]);
+                }
+
+                $args[0] = intval($args[0]);
+                $this->r = ($args[0] & 0xff0000) >> 16;
+                $this->g = ($args[0] & 0x00ff00) >> 8;
+                $this->b = ($args[0] & 0x0000ff);
+            }
+        } else {
+            $this->r = $this->g = $this->b = 0;
+        }
+    }
+
+    /**
+     * Sets the color transparent.
+     *
+     * @param bool $transparent
+     */
+    public function setTransparent($transparent) {
+        $this->transparent = $transparent;
+    }
+
+    /**
+     * Returns Red Color.
+     *
+     * @return int
+     */
+    public function r() {
+        return $this->r;
+    }
+
+    /**
+     * Returns Green Color.
+     *
+     * @return int
+     */
+    public function g() {
+        return $this->g;
+    }
+
+    /**
+     * Returns Blue Color.
+     *
+     * @return int
+     */
+    public function b() {
+        return $this->b;
+    }
+
+    /**
+     * Returns the int value for PHP color.
+     *
+     * @param resource $im
+     * @return int
+     */
+    public function allocate(&$im) {
+        $allocated = imagecolorallocate($im, $this->r, $this->g, $this->b);
+        if ($this->transparent) {
+            return imagecolortransparent($im, $allocated);
+        } else {
+            return $allocated;
+        }
+    }
+
+    /**
+     * Returns class of BCGColor depending of the string color.
+     *
+     * If the color doens't exist, it takes the default one.
+     *
+     * @param string $code
+     * @param string $default
+     */
+    public static function getColor($code, $default = 'white') {
+        switch(strtolower($code)) {
+            case '':
+            case 'white':
+                return 0xffffff;
+            case 'black':
+                return 0x000000;
+            case 'maroon':
+                return 0x800000;
+            case 'red':
+                return 0xff0000;
+            case 'orange':
+                return 0xffa500;
+            case 'yellow':
+                return 0xffff00;
+            case 'olive':
+                return 0x808000;
+            case 'purple':
+                return 0x800080;
+            case 'fuchsia':
+                return 0xff00ff;
+            case 'lime':
+                return 0x00ff00;
+            case 'green':
+                return 0x008000;
+            case 'navy':
+                return 0x000080;
+            case 'blue':
+                return 0x0000ff;
+            case 'aqua':
+                return 0x00ffff;
+            case 'teal':
+                return 0x008080;
+            case 'silver':
+                return 0xc0c0c0;
+            case 'gray':
+                return 0x808080;
+            default:
+                return self::getColor($default, 'white');
+        }
+    }
+}
+?>