-//\r
-// System.Drawing.ImageAnimator.cs\r
-//\r
-// Author:\r
-// Dennis Hayes (dennish@Raytek.com)\r
-//\r
-// (C) 2002 Ximian, Inc\r
-//\r
-using System;\r
-\r
-namespace System.Drawing\r
-{\r
- /// <summary>\r
- /// Summary description for ImageAnimator.\r
- /// </summary>\r
- public class ImageAnimator\r
- {\r
- public ImageAnimator()\r
+//
+// System.Drawing.ImageAnimator.cs
+//
+// Author:
+// Dennis Hayes (dennish@Raytek.com)
+// Sanjay Gupta (gsanjay@novell.com)
+//
+// (C) 2002 Ximian, Inc
+//
+
+//
+// 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.Imaging;
+using System.Threading;
+using System.Collections;
+
+namespace System.Drawing
+{
+ //AnimateEventArgs class
+ class AnimateEventArgs : EventArgs \r
+ { \r
+ private int frameCount;\r
+ private int activeFrameCount = 0;\r
+ private Thread thread;\r
+ \r
+ //Constructor.\r
+ //\r
+ public AnimateEventArgs(Image img)\r
{\r
- //\r
- // TODO: Add constructor logic here\r
- //\r
+ Guid[] dimensionList = img.FrameDimensionsList;
+ int length = dimensionList.Length;
+ for (int i=0; i<length; i++) {
+ if (dimensionList [i].Equals(FrameDimension.Time.Guid))\r
+ this.frameCount = img.GetFrameCount (FrameDimension.Time);
+ } \r
+ }\r
+ \r
+ public int FrameCount { \r
+ get { \r
+ return frameCount;\r
+ } \r
+ }\r
+ \r
+ public int ActiveFrameCount {\r
+ get {\r
+ return activeFrameCount;\r
+ }\r
+\r
+ set {\r
+ activeFrameCount = value;\r
+ }\r
}\r
+\r
+ public Thread RunThread{\r
+ get {\r
+ return thread;\r
+ }\r
+\r
+ set {\r
+ thread = value;\r
+ }\r
+ }\r
+ }\r
+
+ /// <summary>
+ /// Summary description for ImageAnimator.
+ /// </summary>
+ ///
+ [MonoTODO]
+ public sealed class ImageAnimator
+ {
+ static Hashtable ht = new Hashtable ();
+
+ private ImageAnimator ()
+ {
+ //
+ // TODO: Add constructor logic here
+ //
+ }
+
+ public static void Animate (Image img, EventHandler onFrameChangeHandler)
+ {
+ if (img == null)
+ throw new System.NullReferenceException ("Object reference not set to an instance of an object.");
+
+ if (!ht.ContainsKey (img)) {
+ AnimateEventArgs evtArgs = new AnimateEventArgs (img);
+ WorkerThread WT = new WorkerThread(onFrameChangeHandler, evtArgs);
+ ThreadStart TS = new ThreadStart(WT.LoopHandler);
+ Thread thread = new Thread(TS);
+ thread.IsBackground = true;
+ evtArgs.RunThread = thread;
+ ht.Add (img, evtArgs);
+
+ thread.Start();
+ }
+ }
+
+ public static bool CanAnimate (Image img)
+ {
+ //An image can animate if it has multiple frame in
+ //time based FrameDimension else return false
+ //Doubt what if the image has multiple frame in page
+ //based FrameDimension
+ if (img == null)
+ return false;
+
+ //Need to check whether i can do this without iterating
+ //within the FrameDimensionsList, ie just call GetFrameCount
+ //with parameter FrameDimension.Time
+ Guid[] dimensionList = img.FrameDimensionsList;
+ int length = dimensionList.Length;
+ int frameCount;
+ for (int i=0; i<length; i++) \r
+ {
+ if (dimensionList [i].Equals(FrameDimension.Time.Guid)) \r
+ {
+ frameCount = img.GetFrameCount (FrameDimension.Time);
+ if (frameCount > 1)
+ return true;
+ }
+ }
+
+ return false; \r
+ }
+
+ public static void StopAnimate (Image img, EventHandler onFrameChangeHandler)
+ {
+ if (img == null)
+ throw new System.NullReferenceException ("Object reference not set to an instance of an object.");
+
+ if (ht.ContainsKey (img)) {
+ AnimateEventArgs evtArgs = (AnimateEventArgs) ht [img];
+ evtArgs.RunThread.Abort ();
+ ht.Remove (img);
+ }
+ }
+
+ public static void UpdateFrames ()
+ {
+ foreach (Image img in ht.Keys) {
+ UpdateFrames (img);
+ }
+ }
+
+ public static void UpdateFrames (Image img)
+ {
+ if (img == null)
+ throw new System.NullReferenceException ("Object reference not set to an instance of an object.");
+
+ if (ht.ContainsKey (img)){
+ //Need a way to get the delay during animation
+ AnimateEventArgs evtArgs = (AnimateEventArgs) ht [img];
+ if (evtArgs.ActiveFrameCount < evtArgs.FrameCount-1){
+ evtArgs.ActiveFrameCount ++;
+ img.SelectActiveFrame (FrameDimension.Time, evtArgs.ActiveFrameCount);
+ } \r
+ else
+ evtArgs.ActiveFrameCount = 0;
+ ht [img] = evtArgs;
+ }
+ }
+ }
+
+ class WorkerThread
+ {
+ private EventHandler frameChangeHandler;
+ private AnimateEventArgs animateEventArgs;
+
+ public WorkerThread(EventHandler frmChgHandler, AnimateEventArgs aniEvtArgs)
+ {
+ frameChangeHandler = frmChgHandler;
+ animateEventArgs = aniEvtArgs;
+ }
+
+ public void LoopHandler()
+ {
+ try
+ {
+ while (true) {
+ //Need a way to get the delay during animation
+ Thread.Sleep (100);
+ frameChangeHandler (null, animateEventArgs);\r
+ }
+ }
+ catch(ThreadAbortException)
+ {
+ //lets not bother ourselves with tae
+ //it will be thrown anyway
+ }
+ catch(Exception er)
+ {
+ throw er;
+ }
+ }
}\r
-}\r
+}
projects / mono.git / blobdiff