-//\r
-// System.Drawing.Imaging.ColorPalette.cs\r
-//\r
-// (C) 2002 Ximian, Inc. http://www.ximian.com\r
-//\r
-// Author:\r
-// Miguel de Icaza (miguel@ximian.com\r
-//\r
-\r
-using System;\r
-\r
-namespace System.Drawing.Imaging\r
-{\r
- public sealed class ColorPalette {\r
- // 0x1: the color values in the array contain alpha information\r
- // 0x2: the color values are grayscale values.\r
- // 0x4: the colors in the array are halftone values.\r
-\r
- int flags;\r
- Color [] entries;\r
-\r
- //\r
- // There is no public constructor, this will be used somewhere in the\r
- // drawing code\r
- //\r
- internal ColorPalette ()\r
- {\r
- flags = 0;\r
- entries = new Color [0];\r
- }\r
- \r
- public Color [] Entries {\r
- get {\r
- return entries;\r
- }\r
- }\r
-\r
- public int Flags {\r
- get {\r
- return flags;\r
- }\r
- }\r
- }\r
-}\r
+//
+// System.Drawing.Imaging.ColorPalette.cs
+//
+// (C) 2002 Ximian, Inc. http://www.ximian.com
+//
+// Author:
+// Miguel de Icaza (miguel@ximian.com)
+//
+
+//
+// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Drawing;
+using System.Runtime.InteropServices;
+
+namespace System.Drawing.Imaging
+{
+ public sealed class ColorPalette {
+ // 0x1: the color values in the array contain alpha information
+ // 0x2: the color values are grayscale values.
+ // 0x4: the colors in the array are halftone values.
+
+ private int flags;
+ private Color [] entries;
+
+ //
+ // There is no public constructor, this will be used somewhere in the
+ // drawing code
+ //
+ internal ColorPalette ()
+ {
+ entries = new Color [0];
+ }
+
+ internal ColorPalette (int flags, Color[] colors) {
+ this.flags = flags;
+ entries = colors;
+ }
+
+ public Color [] Entries {
+ get {
+ return entries;
+ }
+ }
+
+ public int Flags {
+ get {
+ return flags;
+ }
+ }
+ /* Caller should call FreeHGlobal*/
+ internal IntPtr getGDIPalette()
+ {
+ GdiColorPalette palette = new GdiColorPalette ();
+ Color[] entries = Entries;
+ int entry = 0;
+ int size = Marshal.SizeOf (palette) + (Marshal.SizeOf (entry) * entries.Length);
+ IntPtr lfBuffer = Marshal.AllocHGlobal(size);
+
+ palette.Flags = Flags;
+ palette.Count = entries.Length;
+
+ int[] values = new int[palette.Count];
+
+ for (int i = 0; i < values.Length; i++) {
+ values[i] = entries[i].ToArgb();
+ }
+
+ Marshal.StructureToPtr (palette, lfBuffer, false);
+ Marshal.Copy (values, 0, (IntPtr) (lfBuffer.ToInt64() + Marshal.SizeOf (palette)), values.Length);
+
+ return lfBuffer;
+ }
+
+ internal void setFromGDIPalette (IntPtr palette)
+ {
+ IntPtr ptr = palette;
+ int cnt, color;
+ int offset;
+
+ flags = Marshal.ReadInt32 (ptr); ptr = (IntPtr) (ptr.ToInt64() + 4);
+ cnt = Marshal.ReadInt32 (ptr); ptr = (IntPtr) (ptr.ToInt64() + 4);
+
+ entries = new Color [cnt];
+
+ offset = 0;
+ for (int i = 0; i < cnt; i++) {
+ color = Marshal.ReadInt32 (ptr, offset);
+ entries[i] = Color.FromArgb (color);
+ offset += 4;
+ }
+ }
+ }
+}
projects / mono.git / blobdiff