com.sun.jna.platform
Class WindowUtils.NativeWindowUtils

java.lang.Object
  com.sun.jna.platform.WindowUtils.NativeWindowUtils

Enclosing class:

WindowUtils

public abstract static class WindowUtils.NativeWindowUtils
extends Object

Window utilities with differing native implementations.

WindowUtils.NativeWindowUtils

public WindowUtils.NativeWindowUtils()

getWindow

protected Window getWindow(Component c)

whenDisplayable

protected void whenDisplayable(Component w,
                               Runnable action)

Execute the given action when the given window becomes displayable.

toRaster

protected Raster toRaster(Shape mask)

toRaster

protected Raster toRaster(Component c,
                          Icon mask)

toShape

protected Shape toShape(Raster raster)

setWindowAlpha

public void setWindowAlpha(Window w,
                           float alpha)

Set the overall alpha transparency of the window. An alpha of 1.0 is fully opaque, 0.0 is fully transparent.

isWindowAlphaSupported

public boolean isWindowAlphaSupported()

Default: no support.

getAlphaCompatibleGraphicsConfiguration

public GraphicsConfiguration getAlphaCompatibleGraphicsConfiguration()

Return the default graphics configuration.

setWindowTransparent

public void setWindowTransparent(Window w,
                                 boolean transparent)

Set the window to be transparent. Only explicitly painted pixels will be non-transparent. All pixels will be composited with whatever is under the window using their alpha values.

setDoubleBuffered

protected void setDoubleBuffered(Component root,
                                 boolean buffered)

setLayersTransparent

protected void setLayersTransparent(Window w,
                                    boolean transparent)

setMask

protected void setMask(Component c,
                       Raster raster)

Override this method to provide bitmap masking of the given heavyweight component.

setWindowMask

protected void setWindowMask(Component w,
                             Raster raster)

Set the window mask based on the given Raster, which should be treated as a bitmap (zero/nonzero values only). A value of null means to remove the mask.

setWindowMask

public void setWindowMask(Component w,
                          Shape mask)

Set the window mask based on a Shape.

setWindowMask

public void setWindowMask(Component w,
                          Icon mask)

Set the window mask based on an Icon. All non-transparent pixels will be included in the mask.

setForceHeavyweightPopups

protected void setForceHeavyweightPopups(Window w,
                                         boolean force)

Use this method to ensure heavyweight popups are used in conjunction with a given window. This prevents the window's alpha setting or mask region from being applied to the popup.