1 files changed, 65 insertions, 0 deletions
diff --git a/src/ui/gradient.h b/src/ui/gradient.h
new file mode 100644
index 00000000..196fd6a0
--- /dev/null
+++ b/src/ui/gradient.h
@@ -0,0 +1,65 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Marco gradient rendering */
+
+/* 
+ * Copyright (C) 2001 Havoc Pennington, 99% copied from wrlib in
+ * WindowMaker, Copyright (C) 1997-2000 Dan Pascu and Alfredo Kojima
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.  */
+
+#ifndef META_GRADIENT_H
+#define META_GRADIENT_H
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gdk/gdk.h>
+
+typedef enum
+{
+  META_GRADIENT_VERTICAL,
+  META_GRADIENT_HORIZONTAL,
+  META_GRADIENT_DIAGONAL,
+  META_GRADIENT_LAST
+} MetaGradientType;
+
+GdkPixbuf* meta_gradient_create_simple     (int               width,
+                                            int               height,
+                                            const GdkColor   *from,
+                                            const GdkColor   *to,
+                                            MetaGradientType  style);
+GdkPixbuf* meta_gradient_create_multi      (int               width,
+                                            int               height,
+                                            const GdkColor   *colors,
+                                            int               n_colors,
+                                            MetaGradientType  style);
+GdkPixbuf* meta_gradient_create_interwoven (int               width,
+                                            int               height,
+                                            const GdkColor    colors1[2],
+                                            int               thickness1,
+                                            const GdkColor    colors2[2],
+                                            int               thickness2);
+
+
+/* Generate an alpha gradient and multiply it with the existing alpha
+ * channel of the given pixbuf
+ */
+void meta_gradient_add_alpha (GdkPixbuf       *pixbuf,
+                              const guchar    *alphas,
+                              int              n_alphas,
+                              MetaGradientType type);
+
+
+#endif