AppleCommander/src/main/java/com/webcodepro/applecommander/ui/swt/filteradapter/GraphicsFilterAdapter.java

96 lines
3.4 KiB
Java

/*
* AppleCommander - An Apple ][ image utility.
* Copyright (C) 2002-2004 by Robert Greene
* robgreene at users.sourceforge.net
*
* This program 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 of the License, or (at your
* option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.webcodepro.applecommander.ui.swt.filteradapter;
import java.io.ByteArrayInputStream;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.ImageLoader;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Label;
import com.webcodepro.applecommander.ui.UiBundle;
import com.webcodepro.applecommander.ui.swt.FileViewerWindow;
import com.webcodepro.applecommander.ui.swt.util.ImageCanvas;
import com.webcodepro.applecommander.ui.swt.util.contentadapter.ImageCanvasAdapter;
import com.webcodepro.applecommander.ui.swt.util.contentadapter.NoActionContentTypeAdapter;
/**
* Provides a view of an Apple graphic image.
*
* @author Rob Greene
*/
public class GraphicsFilterAdapter extends FilterAdapter {
private Image image;
private boolean error = false;
public GraphicsFilterAdapter(FileViewerWindow window, String text, String toolTipText, Image image) {
super(window, text, toolTipText, image);
}
public void display() {
getCopyToolItem().setEnabled(false);
if (image == null && error == false) {
try {
byte[] imageBytes = getFileFilter().filter(getFileEntry());
ByteArrayInputStream inputStream = new ByteArrayInputStream(imageBytes);
ImageLoader imageLoader = new ImageLoader();
ImageData[] imageData = imageLoader.load(inputStream);
image = new Image(getComposite().getDisplay(), imageData[0]);
} catch (Throwable t) {
error = true;
}
}
if (!error) {
GridLayout layout = new GridLayout();
getComposite().setLayout(layout);
GridData gridData = new GridData();
gridData.widthHint = image.getImageData().width;
gridData.heightHint = image.getImageData().height;
ImageCanvas imageCanvas = new ImageCanvas(getComposite(), SWT.NONE, image, gridData);
getComposite().setContent(imageCanvas);
getComposite().setExpandHorizontal(true);
getComposite().setExpandVertical(true);
getComposite().setMinWidth(image.getImageData().width);
getComposite().setMinHeight(image.getImageData().height);
setContentTypeAdapter(new ImageCanvasAdapter(imageCanvas, getFileEntry().getFilename()));
} else {
Label label = new Label(getComposite(), SWT.NULL);
label.setText(UiBundle.getInstance().get(
"GraphicsFilterAdapter.BadImageMessage")); //$NON-NLS-1$
getComposite().setContent(label);
getComposite().setExpandHorizontal(true);
getComposite().setExpandVertical(true);
setContentTypeAdapter(new NoActionContentTypeAdapter());
}
}
public void dispose() {
if (image != null) image.dispose();
}
}