Exemple #1
0
  /** 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;
  }
Exemple #2
0
  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();
    }
  }