| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.debug.internal.ui.views.variables; |
| |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.ILogicalStructureType; |
| import org.eclipse.debug.core.model.IExpression; |
| import org.eclipse.debug.core.model.IValue; |
| import org.eclipse.debug.core.model.IVariable; |
| import org.eclipse.debug.internal.ui.IDebugHelpContextIds; |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.action.ActionContributionItem; |
| import org.eclipse.jface.action.IMenuCreator; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.ui.PlatformUI; |
| |
| /** |
| * Drop down action that displays available logical structures for a selected |
| * variable or expression. |
| */ |
| public class AvailableLogicalStructuresAction extends Action implements IMenuCreator { |
| |
| private VariablesView fView; |
| private Menu fMenu; |
| private IValue fValue; |
| private ILogicalStructureType[] fTypes; |
| |
| public AvailableLogicalStructuresAction(VariablesView view) { |
| setView(view); |
| setToolTipText(VariablesViewMessages.AvailableLogicalStructuresAction_0); |
| setText(VariablesViewMessages.AvailableLogicalStructuresAction_1); |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IDebugHelpContextIds.VARIABLES_SELECT_LOGICAL_STRUCTURE); |
| setEnabled(false); |
| setMenuCreator(this); |
| init(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.action.IAction#run() |
| */ |
| public void run() { |
| } |
| |
| protected VariablesView getView() { |
| return fView; |
| } |
| |
| protected void setView(VariablesView view) { |
| fView = view; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.action.IMenuCreator#dispose() |
| */ |
| public void dispose() { |
| if (fMenu != null) { |
| fMenu.dispose(); |
| } |
| fView= null; |
| fValue = null; |
| fTypes = null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.action.IMenuCreator#getMenu(org.eclipse.swt.widgets.Control) |
| */ |
| public Menu getMenu(Control parent) { |
| return null; |
| } |
| |
| protected void addActionToMenu(Menu parent, Action action) { |
| ActionContributionItem item= new ActionContributionItem(action); |
| item.fill(parent, -1); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.action.IMenuCreator#getMenu(org.eclipse.swt.widgets.Menu) |
| */ |
| public Menu getMenu(Menu parent) { |
| if (fMenu != null) { |
| fMenu.dispose(); |
| } |
| |
| fMenu= new Menu(parent); |
| ILogicalStructureType[] types = getTypes(); |
| ILogicalStructureType enabledType = DebugPlugin.getDefaultStructureType(types); |
| if (types != null && types.length > 0) { |
| for (int i = 0; i < types.length; i++) { |
| ILogicalStructureType type= types[i]; |
| Action action = new SelectLogicalStructureAction(getView(), type, getValue(), types); |
| action.setChecked(enabledType == type); |
| StringBuffer label= new StringBuffer(); |
| //add the numerical accelerator |
| if (i < 9) { |
| label.append('&'); |
| label.append(i + 1); |
| label.append(' '); |
| } |
| label.append(action.getText()); |
| action.setText(label.toString()); |
| addActionToMenu(fMenu, action); |
| } |
| } |
| return fMenu; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent) |
| */ |
| public void init() { |
| setValue(null); |
| setTypes(null); |
| if (getView().isShowLogicalStructure()) { |
| ISelection s = getView().getViewer().getSelection(); |
| if (s instanceof IStructuredSelection) { |
| IStructuredSelection selection = (IStructuredSelection) s; |
| if (selection.size() == 1) { |
| Object obj = selection.getFirstElement(); |
| IValue value = null; |
| if (obj instanceof IVariable) { |
| IVariable var = (IVariable) obj; |
| try { |
| value = var.getValue(); |
| } catch (DebugException e) { |
| } |
| } else if (obj instanceof IExpression) { |
| IExpression expression = (IExpression)obj; |
| value = expression.getValue(); |
| } |
| if (value != null) { |
| ILogicalStructureType[] types = DebugPlugin.getLogicalStructureTypes(value); |
| if (types.length > 0) { |
| setTypes(types); |
| setValue(value); |
| setEnabled(true); |
| return; |
| } |
| } |
| } |
| } |
| } |
| setEnabled(false); |
| } |
| |
| protected ILogicalStructureType[] getTypes() { |
| return fTypes; |
| } |
| |
| private void setTypes(ILogicalStructureType[] types) { |
| fTypes = types; |
| } |
| |
| protected IValue getValue() { |
| return fValue; |
| } |
| |
| private void setValue(IValue value) { |
| fValue = value; |
| } |
| } |