| /* GtkVolatileImage.java -- wraps an X pixmap |
| Copyright (C) 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. */ |
| |
| package gnu.java.awt.peer.gtk; |
| |
| import java.awt.ImageCapabilities; |
| import java.awt.Graphics; |
| import java.awt.Graphics2D; |
| import java.awt.GraphicsConfiguration; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.ImageObserver; |
| import java.awt.image.VolatileImage; |
| |
| public class GtkVolatileImage extends VolatileImage |
| { |
| int width, height; |
| private ImageCapabilities caps; |
| |
| final GtkComponentPeer component; |
| |
| /** |
| * Don't touch, accessed from native code. |
| */ |
| long nativePointer; |
| |
| native long init(GtkComponentPeer component, int width, int height); |
| |
| native void destroy(long pointer); |
| |
| native int[] nativeGetPixels(long pointer); |
| public int[] getPixels() |
| { |
| return nativeGetPixels(nativePointer); |
| } |
| |
| native void nativeCopyArea(long pointer, int x, int y, int w, int h, int dx, |
| int dy ); |
| public void copyArea(int x, int y, int w, int h, int dx, int dy) |
| { |
| nativeCopyArea(nativePointer, x, y, w, h, dx, dy); |
| } |
| |
| native void nativeDrawVolatile(long pointer, long srcPtr, int x, int y, |
| int w, int h ); |
| public void drawVolatile(long srcPtr, int x, int y, int w, int h ) |
| { |
| nativeDrawVolatile(nativePointer, srcPtr, x, y, w, h); |
| } |
| |
| public GtkVolatileImage(GtkComponentPeer component, |
| int width, int height, ImageCapabilities caps) |
| { |
| this.width = width; |
| this.height = height; |
| this.caps = caps; |
| this.component = component; |
| nativePointer = init( component, width, height ); |
| } |
| |
| public GtkVolatileImage(int width, int height, ImageCapabilities caps) |
| { |
| this(null, width, height, caps); |
| } |
| |
| public GtkVolatileImage(int width, int height) |
| { |
| this(null, width, height, null); |
| } |
| |
| public void finalize() |
| { |
| dispose(); |
| } |
| |
| public void dispose() |
| { |
| destroy(nativePointer); |
| } |
| |
| public BufferedImage getSnapshot() |
| { |
| CairoSurface cs = new CairoSurface( width, height ); |
| cs.setPixels( getPixels() ); |
| return CairoSurface.getBufferedImage( cs ); |
| } |
| |
| public Graphics getGraphics() |
| { |
| return createGraphics(); |
| } |
| |
| public Graphics2D createGraphics() |
| { |
| return new VolatileImageGraphics( this ); |
| } |
| |
| public int validate(GraphicsConfiguration gc) |
| { |
| return VolatileImage.IMAGE_OK; |
| } |
| |
| public boolean contentsLost() |
| { |
| return false; |
| } |
| |
| public ImageCapabilities getCapabilities() |
| { |
| return caps; |
| } |
| |
| public int getWidth() |
| { |
| return width; |
| } |
| |
| public int getHeight() |
| { |
| return height; |
| } |
| |
| public int getWidth(java.awt.image.ImageObserver observer) |
| { |
| return width; |
| } |
| |
| public int getHeight(java.awt.image.ImageObserver observer) |
| { |
| return height; |
| } |
| |
| public Object getProperty(String name, ImageObserver observer) |
| { |
| return null; |
| } |
| } |