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/*
* MicroEmulator
* Copyright (C) 2001 Bartek Teodorczyk
*
* It is licensed under the following two licenses as alternatives:
* 1. GNU Lesser General Public License (the "LGPL") version 2.1 or any newer version
* 2. Apache License (the "AL") Version 2.0
*
* You may not use this file except in compliance with at least one of
* the above two licenses.
*
* You may obtain a copy of the LGPL at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
*
* You may obtain a copy of the AL at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the LGPL or the AL for the specific language governing permissions and
* limitations.
*/
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);
}
}
}