java.awt
Class GraphicsDevice
This describes a graphics device available to the given environment. This
includes screen and printer devices, and the different configurations for
each device. Also, this allows you to create virtual devices which operate
over a multi-screen environment.
clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
TYPE_IMAGE_BUFFER
public static final int TYPE_IMAGE_BUFFER
Device is an image buffer not visible to the user.
TYPE_PRINTER
public static final int TYPE_PRINTER
Device is a printer.
getAvailableAcceleratedMemory
public int getAvailableAcceleratedMemory()
Return the number of bytes available in accelerated memory on this
device. The device may support creation or caching on a first-come,
first-served basis, depending on the operating system and driver.
Memory may be a finite resource, and because of multi-threading, you
are not guaranteed that the result of this method ensures your image
will successfully be put in accelerated memory. A negative result means
the memory is unlimited. The default implementation assumes no special
memory is available, and returns 0.
- the size of accelerated memory available
getDisplayModes
public DisplayMode[] getDisplayModes()
Return an array of all available display modes. This implementation
returns a 0-length array, so subclasses must override this.
- the array of available modes
getFullScreenWindow
public Window getFullScreenWindow()
Returns the current full-screen window of the device, or null if no
window is full-screen.
getIDstring
public abstract String getIDstring()
Returns an identification string for the device. This can be
vendor-specific, and may be useful for debugging.
getType
public abstract int getType()
Returns the type of the device.
isDisplayChangeSupported
public boolean isDisplayChangeSupported()
Returns whether this device supports low-level display changes. This may
depend on whether full-screen exclusive mode is available.
XXX The default implementation returns false for now.
- true if display changes are supported
isFullScreenSupported
public boolean isFullScreenSupported()
Returns true if the device supports full-screen exclusive mode. The
default implementation returns true; subclass it if this is not the case.
- true if full screen support is available
setDisplayMode
public void setDisplayMode(DisplayMode mode)
Sets the display mode. This may be dependent on the availability of
full-screen exclusive mode.
setFullScreenWindow
public void setFullScreenWindow(Window w)
Toggle the given window between full screen and normal mode. The previous
full-screen window, if different, is restored; if the given window is
null, no window will be full screen. If
isFullScreenSupported() returns true, full screen mode is
considered to be exclusive, which implies:
- Windows cannot overlap the full-screen window. All other application
windows will always appear beneath the full-screen window in the
Z-order.
- Input method windows are disabled. It is advisable to call
Component.enableInputMethods(false) to make a component
a non-client of the input method framework.
If
isFullScreenSupported() returns false, full-screen
exclusive mode is simulated by resizing the window to the size of the
screen and positioning it at (0,0). This is also what this method does.
If a device supports real fullscreen mode then it should override this
method as well as #isFullScreenSupported and #getFullScreenWindow.
GraphicsDevice.java -- information about a graphics device
Copyright (C) 2002, 2005 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version.