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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.ui.swt;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StackLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
/**
* @author Roberto E. Escobar
*/
public class StackedViewer extends Composite {
public static final String DEFAULT_CONTROL = "DEFAULT_CONTROL";
private StackLayout stackLayout;
private Composite stackComposite;
private final Map<String, Control> compositeMap;
public StackedViewer(Composite parent, int style) {
super(parent, style);
compositeMap = new HashMap<String, Control>();
create();
}
private void create() {
this.setLayout(new GridLayout());
this.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
stackComposite = new Composite(this, SWT.NONE);
stackLayout = new StackLayout();
stackLayout.marginHeight = 0;
stackLayout.marginWidth = 0;
stackComposite.setLayout(stackLayout);
stackComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
compositeMap.clear();
compositeMap.put(DEFAULT_CONTROL, createDefault(stackComposite));
setCurrentControl(DEFAULT_CONTROL);
}
public Control addControl(String key, Control control) {
return compositeMap.put(key, control);
}
public Control removeControl(String key) {
return compositeMap.remove(key);
}
public int getControlCount() {
return compositeMap.size() - 1;
}
private Composite createDefault(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(new GridLayout());
composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
composite.setBackground(Displays.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
Label label = new Label(composite, SWT.NONE);
label.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
label.setText("DEFAULT LAYER");
label.setBackground(Displays.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
return composite;
}
public Composite getStackComposite() {
return stackComposite;
}
public void setCurrentControl(String key) {
Control control = compositeMap.get(key);
if (control == null) {
control = compositeMap.get(DEFAULT_CONTROL);
}
stackLayout.topControl = control;
stackComposite.layout();
}
@Override
public void dispose() {
for (Control control : compositeMap.values()) {
Widgets.disposeWidget(control);
}
compositeMap.clear();
Widgets.disposeWidget(stackComposite);
super.dispose();
}
}
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