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/*****************************************************************
* Copyright (c) 2011, 2014 Texas Instruments 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:
* Winnie Lai (Texas Instruments) - Individual Element Number Format example (Bug 202556)
*****************************************************************/
package org.eclipse.cdt.examples.dsf.pda.ui.viewmodel;
import java.util.ArrayList;
import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.debug.service.IExpressions.IExpressionDMContext;
import org.eclipse.cdt.dsf.debug.ui.viewmodel.SimpleMapPersistable;
import org.eclipse.cdt.dsf.debug.ui.viewmodel.expression.ExpressionVMProvider;
import org.eclipse.cdt.dsf.debug.ui.viewmodel.numberformat.IElementFormatProvider;
import org.eclipse.cdt.dsf.debug.ui.viewmodel.variable.VariableVMNode;
import org.eclipse.cdt.dsf.service.DsfSession;
import org.eclipse.cdt.dsf.ui.viewmodel.AbstractVMAdapter;
import org.eclipse.cdt.dsf.ui.viewmodel.IVMContext;
import org.eclipse.cdt.dsf.ui.viewmodel.IVMNode;
import org.eclipse.cdt.dsf.ui.viewmodel.datamodel.IDMVMContext;
import org.eclipse.debug.core.model.IExpression;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
import org.eclipse.jface.viewers.TreePath;
/**
* PDA View Model provider for the expression view.
*/
@SuppressWarnings("restriction")
public class PDAExpressionVMProvider extends ExpressionVMProvider implements IElementFormatProvider {
static String myPersistId = "org.eclipse.cdt.examples.dsf.pda.ui.variablePersistable";
public PDAExpressionVMProvider(AbstractVMAdapter adapter, IPresentationContext context, DsfSession session) {
super(adapter, context, session);
}
@SuppressWarnings("unchecked")
public void getActiveFormat(IPresentationContext context, IVMNode node, Object viewerInput, TreePath elementPath,
DataRequestMonitor<String> rm) {
Object p = context.getProperty(myPersistId);
if (p instanceof SimpleMapPersistable == false) {
rm.setData(null);
rm.done();
return;
}
SimpleMapPersistable<String> persistable = (SimpleMapPersistable<String>) p;
Object x = elementPath.getLastSegment();
if (x instanceof VariableVMNode.VariableExpressionVMC) {
IExpressionDMContext ctx = DMContexts.getAncestorOfType(((VariableVMNode.VariableExpressionVMC) x).getDMContext(), IExpressionDMContext.class);
if (ctx == null) {
rm.setData(null);
} else {
rm.setData(persistable.getValue(ctx.getExpression()));
}
rm.done();
return;
} else if (x instanceof IDMVMContext) {
// register and bit field context are covered here.
// When these show up in expression view, the register/bit field vm node's associateExpression has called
// RegisterVMC/BitFieldVMC's setExpression
IExpression y = ((IVMContext) x).getAdapter(IExpression.class);
if (y == null) {
rm.setData(null);
} else {
rm.setData(persistable.getValue(y.getExpressionText()));
}
rm.done();
return;
}
rm.setData(null);
rm.done();
return;
}
@SuppressWarnings("unchecked")
public void setActiveFormat(IPresentationContext context, IVMNode[] node, Object viewerInput, TreePath[] elementPath, String format) {
Object p = context.getProperty(myPersistId);
SimpleMapPersistable<String> persistable = null;
if (p instanceof SimpleMapPersistable) {
persistable = (SimpleMapPersistable<String>) p;
} else {
persistable = new SimpleMapPersistable<String>(String.class);
context.setProperty(myPersistId, persistable);
}
ArrayList<IDMVMContext> changed = new ArrayList<IDMVMContext>(elementPath.length);
for (int i = 0; i < elementPath.length; i++) {
Object x = elementPath[i].getLastSegment();
if (x instanceof VariableVMNode.VariableExpressionVMC) {
IExpressionDMContext ctx = DMContexts.getAncestorOfType(((VariableVMNode.VariableExpressionVMC) x).getDMContext(), IExpressionDMContext.class);
if (ctx == null)
continue;
persistable.setValue(ctx.getExpression(), format);
changed.add((IDMVMContext) x);
} else if (x instanceof IDMVMContext) {
IExpression y = ((IVMContext) x).getAdapter(IExpression.class);
if (y == null)
continue;
persistable.setValue(y.getExpressionText(), format);
}
}
if (changed.size() > 0) {
refresh();
}
}
public boolean supportFormat(IVMContext context) {
if (context instanceof VariableVMNode.VariableExpressionVMC) {
return true;
}
return false;
}
}
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