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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.views.variables;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.ui.IDebugView;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.widgets.Event;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.texteditor.IUpdate;
/**
*
*/
public abstract class VariableViewToggleAction implements IViewActionDelegate, IActionDelegate2, IUpdate {
/**
* Current value of this filter - on/off.
*/
private boolean fValue;
private IViewPart fView;
private IAction fAction;
public VariableViewToggleAction() {
super();
}
/* (non-Javadoc)
* @see org.eclipse.ui.IViewActionDelegate#init(org.eclipse.ui.IViewPart)
*/
public void init(IViewPart view) {
fView = view;
setValue(getPreferenceValue(view));
fAction.setChecked(getValue());
run(fAction);
IDebugView debugView = (IDebugView)view.getAdapter(IDebugView.class);
if (debugView != null) {
debugView.add(this);
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction)
*/
public void init(IAction action) {
fAction = action;
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#dispose()
*/
public void dispose() {
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#runWithEvent(org.eclipse.jface.action.IAction, org.eclipse.swt.widgets.Event)
*/
public void runWithEvent(IAction action, Event event) {
run(action);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
*/
public void run(IAction action) {
setValue(action.isChecked());
IPreferenceStore store = getPreferenceStore();
String key = getView().getSite().getId() + "." + getPreferenceKey(); //$NON-NLS-1$
store.setValue(key, getValue());
DebugUIPlugin.getDefault().savePluginPreferences();
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged(IAction action, ISelection selection) {
}
protected IPreferenceStore getPreferenceStore() {
return DebugUIPlugin.getDefault().getPreferenceStore();
}
/**
* Returns the value of this filters preference (on/off) for the given
* view.
*
* @param part
* @return boolean
*/
protected boolean getPreferenceValue(IViewPart part) {
String baseKey = getPreferenceKey();
String viewKey = part.getSite().getId();
String compositeKey = viewKey + "." + baseKey; //$NON-NLS-1$
IPreferenceStore store = getPreferenceStore();
boolean value = false;
if (store.contains(compositeKey)) {
value = store.getBoolean(compositeKey);
} else {
value = store.getBoolean(baseKey);
}
return value;
}
/**
* Returns the key for this action's preference
*
* @return String
*/
protected abstract String getPreferenceKey();
protected void setValue(boolean value) {
fValue = value;
}
/**
* Returns the current value of this toggle - on/off.
*
* @return boolean
*/
protected boolean getValue() {
return fValue;
}
protected IViewPart getView() {
return fView;
}
protected StructuredViewer getStructuredViewer() {
IDebugView view = (IDebugView)getView().getAdapter(IDebugView.class);
if (view != null) {
Viewer viewer = view.getViewer();
if (viewer instanceof StructuredViewer) {
return (StructuredViewer)viewer;
}
}
return null;
}
/**
* @see IUpdate#update()
*/
public void update() {
fAction.setChecked(getValue());
}
}
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