/*******************************************************************************
* Copyright (c) 2004, 2009 QNX Software Systems and others.
* 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:
* QNX Software Systems - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.actions;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.cdt.debug.core.model.CVariableFormat;
import org.eclipse.cdt.debug.core.model.ICVariable;
import org.eclipse.cdt.debug.internal.core.model.AbstractCValue;
import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IValue;
import org.eclipse.debug.core.model.IWatchExpression;
import org.eclipse.debug.internal.core.WatchExpression;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
/**
* The superclass of the all format action delegates.
*/
public class VariableFormatActionDelegate implements IObjectActionDelegate {
private CVariableFormat fFormat = CVariableFormat.NATURAL;
private ICVariable[] fVariables = null;
private IStructuredSelection selection;
/**
* Constructor for VariableFormatActionDelegate.
*/
public VariableFormatActionDelegate(CVariableFormat format) {
fFormat = format;
}
/**
* @see org.eclipse.ui.IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart)
*/
public void setActivePart(IAction action, IWorkbenchPart targetPart) {
}
/**
* @see org.eclipse.ui.IActionDelegate#run(IAction)
*/
public void run(IAction action) {
ICVariable[] vars = getVariables();
if (vars != null && vars.length > 0) {
final MultiStatus ms = new MultiStatus(CDebugUIPlugin.getUniqueIdentifier(), DebugException.REQUEST_FAILED, "", null); //$NON-NLS-1$
BusyIndicator.showWhile(Display.getCurrent(), new Runnable() {
public void run() {
try {
doAction(getVariables());
} catch (DebugException e) {
ms.merge(e.getStatus());
}
}
});
if (!ms.isOK()) {
IWorkbenchWindow window = CDebugUIPlugin.getActiveWorkbenchWindow();
if (window != null) {
CDebugUIPlugin.errorDialog(ActionMessages.getString("VariableFormatActionDelegate.0"), ms); //$NON-NLS-1$
} else {
CDebugUIPlugin.log(ms);
}
}
}
}
/**
* @see org.eclipse.ui.IActionDelegate#selectionChanged(IAction, ISelection)
*/
public void selectionChanged(IAction action, ISelection selection) {
if (selection instanceof IStructuredSelection) {
this.selection = (IStructuredSelection) selection;
List<ICVariable> list = new ArrayList<ICVariable>();
IStructuredSelection ssel = (IStructuredSelection) selection;
Iterator i = ssel.iterator();
while (i.hasNext()) {
Object o = i.next();
if (o instanceof ICVariable) {
ICVariable var = (ICVariable) o;
list.add(var);
} else if (o instanceof IWatchExpression) {
IWatchExpression expr = (IWatchExpression) o;
IValue value = expr.getValue();
if (value instanceof AbstractCValue) {
ICVariable parent = ((AbstractCValue) value).getParentVariable();
if (parent != null) {
list.add(parent);
}
}
}
}
for (Iterator<ICVariable> iterator = list.iterator(); iterator.hasNext();) {
ICVariable var = iterator.next();
boolean enabled = var.supportsFormatting();
action.setEnabled(enabled);
if (enabled) {
action.setChecked(var.getFormat() == fFormat);
} else {
iterator.remove();
}
}
setVariables(list.toArray(new ICVariable[list.size()]));
} else {
action.setChecked(false);
action.setEnabled(false);
}
}
protected void doAction( ICVariable[] vars ) throws DebugException {
for( int i = 0; i < vars.length; i++ ) {
vars[i].changeFormat( fFormat );
}
for (Iterator iterator = selection.iterator(); iterator.hasNext();) {
Object o = iterator.next();
if (o instanceof WatchExpression){
((WatchExpression)o).evaluate();
}
}
}
protected ICVariable[] getVariables() {
return fVariables;
}
private void setVariables(ICVariable[] variables) {
fVariables = variables;
}
}