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/*******************************************************************************
* Copyright (c) 2004 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.ui.CDebugUIPlugin;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.debug.core.DebugException;
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 abstract class VariableFormatActionDelegate implements IObjectActionDelegate {
private CVariableFormat fFormat = CVariableFormat.NATURAL;
private ICVariable[] fVariables = null;
/**
* 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 ) {
List list = new ArrayList();
IStructuredSelection ssel = (IStructuredSelection)selection;
Iterator i = ssel.iterator();
while( i.hasNext() ) {
Object o = i.next();
if ( o instanceof ICVariable ) {
ICVariable var = (ICVariable)o;
boolean enabled = var.supportsFormatting();
action.setEnabled( enabled );
if ( enabled ) {
action.setChecked( var.getFormat() == fFormat );
list.add( o );
}
}
}
setVariables( (ICVariable[])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 );
}
}
protected ICVariable[] getVariables() {
return fVariables;
}
private void setVariables( ICVariable[] variables ) {
fVariables = variables;
}
}
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