| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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.expression; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.DebugPlugin; |
| 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.DebugUIPlugin; |
| import org.eclipse.debug.internal.ui.views.DebugUIViewsMessages; |
| import org.eclipse.debug.internal.ui.views.variables.IndexedVariablePartition; |
| import org.eclipse.debug.internal.ui.views.variables.VariablesView; |
| import org.eclipse.debug.internal.ui.views.variables.VariablesViewContentProvider; |
| import org.eclipse.debug.internal.ui.views.variables.VariablesViewer; |
| import org.eclipse.debug.ui.DebugUITools; |
| import org.eclipse.debug.ui.IDebugModelPresentation; |
| import org.eclipse.debug.ui.IDebugUIConstants; |
| import org.eclipse.debug.ui.IValueDetailListener; |
| import org.eclipse.jface.dialogs.IDialogSettings; |
| import org.eclipse.jface.viewers.StructuredViewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.SashForm; |
| import org.eclipse.swt.custom.StyledText; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.swt.widgets.TreeItem; |
| import org.eclipse.ui.IViewPart; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.PartInitException; |
| |
| /** |
| * A popup that displays an expression with a details area. |
| * <p> |
| * Clients may instantiate this class; this class is not intended |
| * to be subclassed. |
| * </p> |
| * @since 3.0 |
| */ |
| public class ExpressionInformationControl extends PopupInformationControl { |
| private static final int[] DEFAULT_SASH_WEIGHTS = new int[] {90, 10}; |
| private static final String SASH_KEY = "SASH_WEIGHT"; //$NON-NLS-1$ |
| |
| private IWorkbenchPage page; |
| private IExpression exp; |
| private VariablesViewer viewer; |
| private IDebugModelPresentation modelPresentation; |
| private StyledText valueDisplay; |
| private SashForm sashForm; |
| private Tree tree; |
| |
| /** |
| * Constructs a popup to display an expression. A label and handler |
| * are provided to move the expression to the Expressions view when |
| * dismissed with the given command. |
| * |
| * @param page the workbench page on which the popup should be displayed |
| * @param exp the expression to display |
| * @param commandId identifier of the command used to dismiss the popup |
| */ |
| public ExpressionInformationControl(IWorkbenchPage page, IExpression exp, String commandId) { |
| super(page.getWorkbenchWindow().getShell(), DebugUIViewsMessages.getString("ExpressionInformationControl.5"), commandId); //$NON-NLS-1$ |
| this.page = page; |
| this.exp = exp; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.IInformationControl#setInformation(String) |
| */ |
| public void setInformation(String information) { |
| VariablesView view = getViewToEmulate(); |
| viewer.getContentProvider(); |
| if (view != null) { |
| StructuredViewer structuredViewer = (StructuredViewer) view.getViewer(); |
| ViewerFilter[] filters = structuredViewer.getFilters(); |
| for (int i = 0; i < filters.length; i++) { |
| viewer.addFilter(filters[i]); |
| } |
| ((VariablesViewContentProvider)viewer.getContentProvider()).setShowLogicalStructure(view.isShowLogicalStructure()); |
| Map map = view.getPresentationAttributes(exp.getModelIdentifier()); |
| Iterator iterator = map.keySet().iterator(); |
| while (iterator.hasNext()) { |
| String key = (String)iterator.next(); |
| modelPresentation.setAttribute(key, map.get(key)); |
| } |
| } |
| viewer.setInput(new Object[]{exp}); |
| viewer.expandToLevel(2); |
| } |
| |
| private VariablesView getViewToEmulate() { |
| VariablesView expressionsView = (VariablesView)page.findView(IDebugUIConstants.ID_EXPRESSION_VIEW); |
| if (expressionsView != null && expressionsView.isVisible()) { |
| return expressionsView; |
| } else { |
| VariablesView variablesView = (VariablesView)page.findView(IDebugUIConstants.ID_VARIABLE_VIEW); |
| if (variablesView != null && variablesView.isVisible()) { |
| return variablesView; |
| } else { |
| if (expressionsView != null) { |
| return expressionsView; |
| } else { |
| return variablesView; |
| } |
| } |
| } |
| } |
| |
| /* |
| * TODO: This method not used yet |
| */ |
| protected int[] getInitialSashWeights() { |
| IDialogSettings settings = getDialogSettings(); |
| int[] sashes = new int[2]; |
| try { |
| sashes[0] = settings.getInt(SASH_KEY+"_ONE"); //$NON-NLS-1$ |
| sashes[1] = settings.getInt(SASH_KEY+"_TWO"); //$NON-NLS-1$ |
| return sashes; |
| } catch (NumberFormatException nfe) { |
| } |
| |
| return DEFAULT_SASH_WEIGHTS; |
| } |
| |
| /* |
| * TODO: This method not used yet |
| */ |
| protected void persistSashWeights() { |
| IDialogSettings settings = getDialogSettings(); |
| int[] sashes = sashForm.getWeights(); |
| settings.put(SASH_KEY+"_ONE", sashes[0]); //$NON-NLS-1$ |
| settings.put(SASH_KEY+"_TWO", sashes[1]); //$NON-NLS-1$ |
| } |
| |
| private void updateValueDisplay(IValue val) { |
| IValueDetailListener valueDetailListener = new IValueDetailListener() { |
| public void detailComputed(IValue value, final String result) { |
| Display.getDefault().asyncExec(new Runnable() { |
| public void run() { |
| valueDisplay.setText(result); |
| } |
| }); |
| } |
| }; |
| modelPresentation.computeDetail(val, valueDetailListener); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.ui.actions.PopupInformationControl#createControl(org.eclipse.swt.widgets.Composite) |
| */ |
| protected Control createControl(Composite parent) { |
| Composite composite = new Composite(parent, parent.getStyle()); |
| GridLayout layout = new GridLayout(); |
| composite.setLayout(layout); |
| composite.setLayoutData(new GridData(GridData.FILL_BOTH)); |
| |
| sashForm = new SashForm(composite, parent.getStyle()); |
| sashForm.setOrientation(SWT.VERTICAL); |
| sashForm.setLayoutData(new GridData(GridData.FILL_BOTH)); |
| |
| viewer = new VariablesViewer(sashForm, SWT.NO_TRIM); |
| viewer.setContentProvider(new ExpressionPopupContentProvider()); |
| modelPresentation = DebugUITools.newDebugModelPresentation(); |
| viewer.setLabelProvider(modelPresentation); |
| |
| valueDisplay = new StyledText(sashForm, SWT.NO_TRIM | SWT.WRAP | SWT.V_SCROLL); |
| valueDisplay.setEditable(false); |
| |
| tree = viewer.getTree(); |
| tree.addSelectionListener(new SelectionListener() { |
| public void widgetSelected(SelectionEvent e) { |
| try { |
| TreeItem[] selections = tree.getSelection(); |
| Object data = selections[selections.length-1].getData(); |
| |
| IValue val = null; |
| if (data instanceof IndexedVariablePartition) { |
| // no details for parititions |
| return; |
| } |
| if (data instanceof IVariable) { |
| val = ((IVariable)data).getValue(); |
| } else if (data instanceof IExpression) { |
| val = ((IExpression)data).getValue(); |
| } |
| if (val == null) { |
| return; |
| } |
| |
| updateValueDisplay(val); |
| } catch (DebugException ex) { |
| DebugUIPlugin.log(ex); |
| } |
| |
| } |
| |
| public void widgetDefaultSelected(SelectionEvent e) { |
| } |
| }); |
| |
| Color background = parent.getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND); |
| Color foreground = parent.getDisplay().getSystemColor(SWT.COLOR_INFO_FOREGROUND); |
| tree.setForeground(foreground); |
| tree.setBackground(background); |
| composite.setForeground(foreground); |
| composite.setBackground(background); |
| valueDisplay.setForeground(foreground); |
| valueDisplay.setBackground(background); |
| |
| //sashForm.setWeights(getInitialSashWeights()); |
| sashForm.setWeights(DEFAULT_SASH_WEIGHTS); |
| |
| return tree; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.IInformationControl#computeSizeHint() |
| */ |
| public Point computeSizeHint() { |
| Point persistedSize = getInitialSize(); |
| if (persistedSize != null) { |
| return persistedSize; |
| } |
| |
| int height = 0; |
| int width = 0; |
| int itemCount = 0; |
| |
| TreeItem[] items = tree.getItems(); |
| GC gc = new GC(tree); |
| for (int i=0; i<items.length; i++) { |
| width = Math.max (width, calculateWidth(items[i], gc)); |
| itemCount++; |
| |
| // do the same for the children because we expand the first level. |
| TreeItem[] children = items[i].getItems(); |
| for (int j = 0; j < children.length; j++) { |
| width = Math.max(width, calculateWidth(children[j], gc)); |
| itemCount++; |
| } |
| |
| } |
| gc.dispose (); |
| width += 40; // give a little extra space |
| |
| height = itemCount * tree.getItemHeight() + 90; |
| if (width > 300) { |
| width = 300; |
| } |
| if (height > 300) { |
| height = 300; |
| } |
| return shell.computeSize(width, height, true); |
| } |
| |
| private int calculateWidth (TreeItem item, GC gc) { |
| int width = 0; |
| Image image = item.getImage (); |
| String text = item.getText (); |
| if (image != null) width = image.getBounds ().width + 2; |
| if (text != null && text.length () > 0) width += gc.stringExtent (text).x; |
| return width; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.IInformationControlExtension#hasContents() |
| */ |
| public boolean hasContents() { |
| return (viewer != null); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.ui.actions.PopupInformationControl#performCommand() |
| */ |
| protected void performCommand() { |
| DebugPlugin.getDefault().getExpressionManager().addExpression(exp); |
| IViewPart part = page.findView(IDebugUIConstants.ID_EXPRESSION_VIEW); |
| if (part == null) { |
| try { |
| page.showView(IDebugUIConstants.ID_EXPRESSION_VIEW); |
| } catch (PartInitException e) { |
| } |
| } else { |
| page.bringToTop(part); |
| } |
| } |
| } |