379      *  @since 1.7
 380      */
 381     static synchronized boolean isShapingSupported() {
 382 
 383         if (isShapingSupported == null) {
 384             XToolkit.awtLock();
 385             try {
 386                 isShapingSupported =
 387                     XlibWrapper.XShapeQueryExtension(
 388                             XToolkit.getDisplay(),
 389                             XlibWrapper.larg1,
 390                             XlibWrapper.larg2);
 391             } finally {
 392                 XToolkit.awtUnlock();
 393             }
 394         }
 395 
 396         return isShapingSupported.booleanValue();
 397     }
 398 










 399 }

 379      *  @since 1.7
 380      */
 381     static synchronized boolean isShapingSupported() {
 382 
 383         if (isShapingSupported == null) {
 384             XToolkit.awtLock();
 385             try {
 386                 isShapingSupported =
 387                     XlibWrapper.XShapeQueryExtension(
 388                             XToolkit.getDisplay(),
 389                             XlibWrapper.larg1,
 390                             XlibWrapper.larg2);
 391             } finally {
 392                 XToolkit.awtUnlock();
 393             }
 394         }
 395 
 396         return isShapingSupported.booleanValue();
 397     }
 398 
 399     static int getButtonMask(int button) {
 400         // Button indices start with 1. The first bit in the button mask is the 8th.
 401         // The state mask does not support button indicies > 5, so we need to
 402         // cut there.
 403         if (button <= 0 || button > XConstants.MAX_BUTTON_MASK) {
 404             return 0;
 405         } else {
 406             return 1 << (7 + button);
 407         }
 408     }
 409 }