com.sun.glass.ui.monocle.X11WarpingCursor Maven / Gradle / Ivy
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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package com.sun.glass.ui.monocle;
/** Native cursor for use with X11 when we are NOT using x11 input
*
*/
public class X11WarpingCursor extends X11Cursor {
private int nextX, nextY;
private static X xLib = X.getX();
/** Update the next coordinates for the cursor. The actual move will occur
* on the next buffer swap
* @param x the new X location on the screen
* @param y the new Y location on the screen
*/
@Override
void setLocation(int x, int y) {
if (x != nextX || y != nextY) {
nextX = x;
nextY = y;
MonocleWindowManager.getInstance().repaintAll();
}
}
/** Called from the swap buffer implementation for this accelerated screen.
* Tells X to move the cursor by a given x/y offset from the current
* location.
*/
void warp() {
if (isVisible) {
int[] position = new int[2];
xLib.XQueryPointer(xdisplay, xwindow, position);
if (position[0] != nextX || position[1] != nextY) {
xLib.XWarpPointer(xdisplay, 0l, 0l, 0, 0, 0, 0,
nextX - position[0],
nextY - position[1]);
}
}
}
}