/** Returns the supported cursor size */
static Dimension getBestCursorSize(int preferredWidth, int preferredHeight) {
// Fix for bug 4212593 The Toolkit.createCustomCursor does not
// check absence of the image of cursor
// We use XQueryBestCursor which accepts unsigned ints to obtain
// the largest cursor size that could be dislpayed
// Dimension d = new Dimension(Math.abs(preferredWidth), Math.abs(preferredHeight));
Dimension d;
XToolkit.awtLock();
try {
long display = XToolkit.getDisplay();
long root_window = XlibWrapper.RootWindow(display, XlibWrapper.DefaultScreen(display));
XlibWrapper.XQueryBestCursor(
display,
root_window,
Math.abs(preferredWidth),
Math.abs(preferredHeight),
XlibWrapper.larg1,
XlibWrapper.larg2);
d =
new Dimension(
XlibWrapper.unsafe.getInt(XlibWrapper.larg1),
XlibWrapper.unsafe.getInt(XlibWrapper.larg2));
} finally {
XToolkit.awtUnlock();
}
return d;
}
protected void createCursor(
byte[] xorMask,
byte[] andMask,
int width,
int height,
int fcolor,
int bcolor,
int xHotSpot,
int yHotSpot) {
XToolkit.awtLock();
try {
long display = XToolkit.getDisplay();
long root_window = XlibWrapper.RootWindow(display, XlibWrapper.DefaultScreen(display));
long colormap = XToolkit.getDefaultXColormap();
XColor fore_color = new XColor();
fore_color.set_flags((byte) (XlibWrapper.DoRed | XlibWrapper.DoGreen | XlibWrapper.DoBlue));
fore_color.set_red((short) (((fcolor >> 16) & 0x000000ff) << 8));
fore_color.set_green((short) (((fcolor >> 8) & 0x000000ff) << 8));
fore_color.set_blue((short) (((fcolor >> 0) & 0x000000ff) << 8));
XlibWrapper.XAllocColor(display, colormap, fore_color.pData);
XColor back_color = new XColor();
back_color.set_flags((byte) (XlibWrapper.DoRed | XlibWrapper.DoGreen | XlibWrapper.DoBlue));
back_color.set_red((short) (((bcolor >> 16) & 0x000000ff) << 8));
back_color.set_green((short) (((bcolor >> 8) & 0x000000ff) << 8));
back_color.set_blue((short) (((bcolor >> 0) & 0x000000ff) << 8));
XlibWrapper.XAllocColor(display, colormap, back_color.pData);
long nativeXorMask = Native.toData(xorMask);
long source =
XlibWrapper.XCreateBitmapFromData(display, root_window, nativeXorMask, width, height);
long nativeAndMask = Native.toData(andMask);
long mask =
XlibWrapper.XCreateBitmapFromData(display, root_window, nativeAndMask, width, height);
long cursor =
XlibWrapper.XCreatePixmapCursor(
display, source, mask, fore_color.pData, back_color.pData, xHotSpot, yHotSpot);
XlibWrapper.unsafe.freeMemory(nativeXorMask);
XlibWrapper.unsafe.freeMemory(nativeAndMask);
XlibWrapper.XFreePixmap(display, source);
XlibWrapper.XFreePixmap(display, mask);
back_color.dispose();
fore_color.dispose();
XGlobalCursorManager.setPData(this, cursor);
} finally {
XToolkit.awtUnlock();
}
}