| /* QtImageGraphics.java -- |
| Copyright (C) 2005, 2006 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.qt; |
| |
| import java.awt.Color; |
| import java.awt.GraphicsConfiguration; |
| import java.awt.Graphics; |
| import java.awt.Image; |
| import java.awt.Rectangle; |
| import java.util.Stack; |
| |
| /** |
| * QtComponentPainter is a Graphics2D context for painting to QtImage and |
| * QtVolatileImages. |
| */ |
| public class QtImageGraphics extends QtGraphics |
| { |
| Image parentImage; |
| Stack owners; |
| QtImageGraphics topParent; |
| |
| public QtImageGraphics(Image image) |
| { |
| if(!( image instanceof QtVolatileImage || image instanceof QtImage)) |
| throw new IllegalArgumentException("Cannot create QtImageGraphics for a non-QImage context."); |
| |
| owners = new Stack(); |
| owners.push(this); |
| topParent = null; |
| int w, h; |
| if(image instanceof QtImage) |
| { |
| w = ((QtImage)image).width; |
| h = ((QtImage)image).height; |
| initImage((QtImage) image ); |
| ((QtImage)image).putPainter( this ); |
| } |
| else |
| { |
| w = ((QtVolatileImage)image).width; |
| h = ((QtVolatileImage)image).height; |
| initVolatileImage((QtVolatileImage) image ); |
| ((QtVolatileImage)image).putPainter( this ); |
| } |
| |
| parentImage = image; |
| initialClip = new Rectangle( 0, 0, w, h ); |
| setClip( initialClip ); |
| setBackground(Color.white); // fixme |
| currentAlpha = 1.0; |
| setColor(Color.black); |
| setup(); |
| } |
| |
| /** |
| * Copying constructor |
| */ |
| QtImageGraphics( QtImageGraphics g ) |
| { |
| super( g ); |
| parentImage = g.parentImage; |
| if(parentImage instanceof QtImage) |
| ((QtImage)parentImage).putPainter( this ); |
| else |
| ((QtVolatileImage)parentImage).putPainter( this ); |
| } |
| |
| public void dispose() |
| { |
| delete(); |
| if( parentImage instanceof QtImage ) |
| ((QtImage)parentImage).removePainter( this ); |
| else |
| ((QtVolatileImage)parentImage).removePainter( this ); |
| } |
| |
| /** |
| * Create a copy of this context. |
| */ |
| public Graphics create() |
| { |
| return new QtImageGraphics( this ); |
| } |
| |
| /** |
| * Copy an area. |
| */ |
| public void copyArea(int x, int y, int width, int height, |
| int dx, int dy) |
| { |
| if(parentImage instanceof QtImage) |
| ((QtImage)parentImage).copyArea(x, y, width, height, dx, dy); |
| else |
| ((QtVolatileImage)parentImage).copyArea(x, y, width, height, dx, dy); |
| } |
| |
| /** |
| * Returns the GraphicsConfiguration of the context component. |
| */ |
| public GraphicsConfiguration getDeviceConfiguration() |
| { |
| throw new UnsupportedOperationException("Not implemented yet"); |
| } |
| } |
| |
| |