org.microemu.device.swt.SwtMutableImage Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of microemulator
MicroEmulator one jar assembly for distribution
There is a newer version: 2.0.4
/*
 *  MicroEmulator
 *  Copyright (C) 2001 Bartek Teodorczyk 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.microemu.device.swt;

import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.ImageData;
import org.microemu.app.ui.swt.SwtDeviceComponent;
import org.microemu.app.ui.swt.SwtGraphics;
import org.microemu.device.MutableImage;


public class SwtMutableImage extends MutableImage 
{
	public org.eclipse.swt.graphics.Image img;
	
	private org.eclipse.swt.graphics.GC gc;
	
	
	public SwtMutableImage(int width, int height) 
	{
		this.img = SwtDeviceComponent.createImage(width, height);
		this.gc = new GC(this.img);
		SwtDisplayGraphics displayGraphics = new SwtDisplayGraphics(new SwtGraphics(gc), this);
		displayGraphics.setColor(0x00ffffff);
		displayGraphics.fillRect(0, 0, width, height);
	}


	public javax.microedition.lcdui.Graphics getGraphics() 
	{
		SwtDisplayGraphics displayGraphics = new SwtDisplayGraphics(new SwtGraphics(gc), this);
		displayGraphics.setColor(0x00000000);
		displayGraphics.setClip(0, 0, getWidth(), getHeight());
		displayGraphics.translate(-displayGraphics.getTranslateX(), -displayGraphics.getTranslateY());

		return displayGraphics;
	}


	public boolean isMutable() 
	{
		return true;
	}


	public int getHeight() 
	{
		return img.getBounds().height;
	}


	public org.eclipse.swt.graphics.Image getImage() 
	{
		return img;
	}


	public int getWidth() 
	{
		return img.getBounds().width;
	}


	public int[] getData() 
	{
		byte[] tmp = img.getImageData().data;
		int[] result = new int[tmp.length];
		
		for (int i = 0; i < tmp.length; i++) {
			result[i] = tmp[i];
		}
		
		return result;
	}


	public void getRGB(int[] argb, int offset, int scanlength, int x, int y, int width, int height) 
	{
        if (width <= 0 || height <= 0) {
            return;
        }
        if (x < 0 || y < 0 || x + width > getWidth() || y + height > getHeight()) {
            throw new IllegalArgumentException("Specified area exceeds bounds of image");
        }
        if ((scanlength < 0 ? -scanlength : scanlength) < width) {
            throw new IllegalArgumentException("abs value of scanlength is less than width");
        }
        if (argb == null) { 
            throw new NullPointerException("null rgbData");
        }
        if (offset < 0 || offset + width > argb.length) {
            throw new ArrayIndexOutOfBoundsException();
        }
        if (scanlength < 0) { 
            if (offset + scanlength*(height-1) < 0) {
                throw new ArrayIndexOutOfBoundsException();
            }
        } else {
            if (offset + scanlength*(height-1) + width > argb.length) {
                throw new ArrayIndexOutOfBoundsException();
            }
        }
        
        ImageData imageData = img.getImageData();
        for (int i = 0; i < height; i++) {
        		imageData.getPixels(x, y + i, width, argb, offset + i * scanlength);
        }
	}

}