MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / vendor / stil / gd-text / src / Color.php

diff --git a/vendor/stil/gd-text/src/Color.php b/vendor/stil/gd-text/src/Color.php
new file mode 100644 (file)
index 0000000..10238b9
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+++ b/vendor/stil/gd-text/src/Color.php
@@ -0,0 +1,72 @@
+<?php
+namespace GDText;
+
+class Color
+{
+    /**
+     * @var int
+     */
+    protected $red;
+
+    /**
+     * @var int
+     */
+    protected $green;
+
+    /**
+     * @var int
+     */
+    protected $blue;
+
+    /**
+     * @var int|null
+     */
+    protected $alpha;
+
+    /**
+     * @param int $red Value of red component 0-255
+     * @param int $green Value of green component 0-255
+     * @param int $blue Value of blue component 0-255
+     * @param int $alpha A value between 0 and 127. 0 indicates completely opaque while 127 indicates completely transparent.
+     */
+    public function __construct($red = 0, $green = 0, $blue = 0, $alpha = null)
+    {
+        $this->red = $red;
+        $this->green = $green;
+        $this->blue = $blue;
+        $this->alpha = $alpha;
+    }
+
+    /**
+     * @param resource $image GD image resource
+     * @return int Returns the index of the specified color+alpha in the palette of the image,
+     *             or -1 if the color does not exist in the image's palette.
+     */
+    public function getIndex($image)
+    {
+        if ($this->hasAlphaChannel()) {
+            return imagecolorexactalpha(
+                $image,
+                $this->red,
+                $this->green,
+                $this->blue,
+                $this->alpha
+            );
+        } else {
+            return imagecolorexact(
+                $image,
+                $this->red,
+                $this->green,
+                $this->blue
+            );
+        }
+    }
+
+    /**
+     * @return bool TRUE when alpha channel is specified, FALSE otherwise
+     */
+    public function hasAlphaChannel()
+    {
+        return $this->alpha !== null;
+    }
+}
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