[Java-game-lib-cvs] SF.net SVN: java-game-lib:[3294] trunk/LWJGL/src/java/org/lwjgl/input/Mouse .java

[<ka...@us...>]

Revision: 3294
          http://java-game-lib.svn.sourceforge.net/java-game-lib/?rev=3294&view=rev
Author:   kappa1
Date:     2010-03-26 19:17:53 +0000 (Fri, 26 Mar 2010)

Log Message:
-----------
Consistent mouse grab behaviour on all platforms. Mouse will now ungrab at the same place it was grabbed from.

Modified Paths:
--------------
    trunk/LWJGL/src/java/org/lwjgl/input/Mouse.java

Modified: trunk/LWJGL/src/java/org/lwjgl/input/Mouse.java
===================================================================
--- trunk/LWJGL/src/java/org/lwjgl/input/Mouse.java	2010-03-23 12:43:44 UTC (rev 3293)
+++ trunk/LWJGL/src/java/org/lwjgl/input/Mouse.java	2010-03-26 19:17:53 UTC (rev 3294)
@@ -125,6 +125,9 @@
 	private static int			event_x;
 	private static int			event_y;
 	private static long			event_nanos;
+	/** The position of the mouse it was grabbed at */
+	private static int			grab_x;
+	private static int			grab_y;
 
 	/** Buffer size in events */
 	private static final int	BUFFER_SIZE									= 50;
@@ -611,15 +614,27 @@
 	 */
 	public static void setGrabbed(boolean grab) {
 		synchronized (OpenGLPackageAccess.global_lock) {
-			isGrabbed = grab;
+			
 			if (isCreated()) {
-				implementation.grabMouse(isGrabbed);
+				if (grab && !isGrabbed) {
+					// store location mouse was grabbed
+					grab_x = x;
+					grab_y = y;
+				}				
+				else if (!grab && isGrabbed) {
+					// move mouse back to location it was grabbed before ungrabbing
+					if ((Cursor.getCapabilities() & Cursor.CURSOR_ONE_BIT_TRANSPARENCY) != 0)
+						implementation.setCursorPosition(grab_x, grab_y);
+				}
+				
+				implementation.grabMouse(grab);
 				// Get latest values from native side
 				poll();
 				event_x = x;
 				event_y = y;
 				resetMouse();
 			}
+			isGrabbed = grab;
 		}
 	}
 


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