1 files changed, 78 insertions, 0 deletions

diff --git a/noncore/styles/theme/ogfxeffect.h b/noncore/styles/theme/ogfxeffect.h
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+++ b/noncore/styles/theme/ogfxeffect.h
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+/* This file is part of the KDE libraries
+    Copyright (C) 1998, 1999 Christian Tibirna <ctibirna@total.net>
+              (C) 1998, 1999 Daniel M. Duley <mosfet@kde.org>
+              (C) 1998, 1999 Dirk A. Mueller <mueller@kde.org>
+
+*/
+
+// $Id$
+
+#ifndef __OGFX_EFFECT_H
+#define __OGFX_EFFECT_H
+
+#include <qpixmap.h>
+#include <qimage.h>
+
+/**
+ * This class includes various pixmap-based graphical effects.
+ *
+ * Everything is
+ * static, so there is no need to create an instance of this class. You can
+ * just call the static methods. They are encapsulated here merely to provide
+ * a common namespace.
+ */
+class OGfxEffect
+{
+public:
+    enum GradientType { VerticalGradient, HorizontalGradient,
+                        DiagonalGradient, CrossDiagonalGradient,
+                        PyramidGradient, RectangleGradient,
+                        PipeCrossGradient, EllipticGradient };
+    enum RGBComponent { Red, Green, Blue };
+
+    enum Lighting {NorthLite, NWLite, WestLite, SWLite,
+                   SouthLite, SELite, EastLite, NELite};
+
+    /**
+     * Create a gradient from color a to color b of the specified type.
+     *
+     * @param pixmap The pixmap to process.
+     * @param ca Color a.
+     * @param cb Color b.
+     * @param type The type of gradient.
+     * @param ncols The number of colors to use when not running on a
+     * truecolor display. The gradient will be dithered to this number of
+     * colors. Pass 0 to prevent dithering.
+     * @return Returns the generated pixmap, for convenience.
+     */
+    static QPixmap& gradient(QPixmap& pixmap, const QColor &ca, const QColor &cb,
+                            GradientType type, int ncols=3);
+
+
+    /**
+     * Blend the provided pixmap into a background of the indicated color
+     *
+     * @param pixmap The pixmap to process.
+     * @param initial_intensity this parameter takes values from -1 to 1:
+     *              @li If positive, it tells how much to fade the image in its
+     *                              less affected spot.
+     *              @li If negative, it tells roughly indicates how much of the image
+     *                              remains unaffected
+     * @param bgnd Indicates the color of the background to blend in.
+     * @param eff Lets you choose what kind of blending you like.
+     * @param anti_dir Blend in the opposite direction (makes no much sense
+     *                  with concentric blending effects).
+     * @return Returns the @ref pixmap(), provided for convenience.
+     */
+    static QPixmap& blend(QPixmap& pixmap, float initial_intensity,
+                         const QColor &bgnd, GradientType eff,
+                         bool anti_dir=false, int ncols=3);
+
+
+        static QImage& blend(QImage &image, float initial_intensity,
+                            const QColor &bgnd, GradientType eff,
+                            bool anti_dir);
+};
+
+
+#endif