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/*******************************************************************************
* Copyright (c) 2000, 2009 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.actions.expressions;
import org.eclipse.debug.core.model.IWatchExpression;
import org.eclipse.debug.internal.ui.IDebugHelpContextIds;
import org.eclipse.debug.internal.ui.actions.ActionMessages;
import org.eclipse.debug.internal.ui.actions.StatusInfo;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.dialogs.StatusDialog;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.DocumentEvent;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IDocumentListener;
import org.eclipse.jface.text.ITextOperationTarget;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.jface.text.source.SourceViewerConfiguration;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.console.actions.TextViewerAction;
/**
* Dialog for edit watch expression.
*/
public class WatchExpressionDialog extends StatusDialog {
/**
* The detail formatter to edit.
*/
private IWatchExpression fWatchExpression;
// widgets
private SourceViewer fSnippetViewer;
private Button fCheckBox;
public WatchExpressionDialog(Shell parent, IWatchExpression watchExpression, boolean editDialog) {
super(parent);
fWatchExpression= watchExpression;
setShellStyle(getShellStyle() | SWT.MAX | SWT.RESIZE);
String helpContextId = null;
if (editDialog) {
setTitle(ActionMessages.WatchExpressionDialog_0);
helpContextId = IDebugHelpContextIds.EDIT_WATCH_EXPRESSION_DIALOG;
} else {
setTitle(ActionMessages.WatchExpressionDialog_1);
helpContextId = IDebugHelpContextIds.ADD_WATCH_EXPRESSION_DIALOG;
}
PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, helpContextId);
}
/**
* Create the dialog area.
*
* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(Composite)
*/
protected Control createDialogArea(Composite parent) {
Font font = parent.getFont();
Composite container = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
container.setLayout(layout);
GridData gd= new GridData(GridData.FILL_BOTH);
container.setLayoutData(gd);
// snippet label
Label label = new Label(container, SWT.NONE);
label.setText(ActionMessages.WatchExpressionDialog_2);
gd= new GridData(GridData.BEGINNING);
label.setLayoutData(gd);
label.setFont(font);
fSnippetViewer = new SourceViewer(container, null, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL | SWT.LEFT_TO_RIGHT);
fSnippetViewer.setInput(this);
IDocument document = new Document();
fSnippetViewer.configure(new SourceViewerConfiguration());
fSnippetViewer.setEditable(true);
fSnippetViewer.setDocument(document);
document.addDocumentListener(new IDocumentListener() {
public void documentAboutToBeChanged(DocumentEvent event) {
}
public void documentChanged(DocumentEvent event) {
checkValues();
}
});
fSnippetViewer.getTextWidget().setFont(JFaceResources.getTextFont());
Control control= fSnippetViewer.getControl();
gd= new GridData(GridData.FILL_BOTH);
gd.heightHint= convertHeightInCharsToPixels(10);
gd.widthHint= convertWidthInCharsToPixels(80);
control.setLayoutData(gd);
fSnippetViewer.getDocument().set(fWatchExpression.getExpressionText());
// actions
final TextViewerAction cutAction = new TextViewerAction(fSnippetViewer, ITextOperationTarget.CUT);
cutAction.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_TOOL_CUT));
cutAction.setDisabledImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_TOOL_CUT_DISABLED));
cutAction.setText(ActionMessages.WatchExpressionDialogMenu_0);
final TextViewerAction copyAction = new TextViewerAction(fSnippetViewer, ITextOperationTarget.COPY);
copyAction.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_TOOL_COPY));
copyAction.setDisabledImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_TOOL_COPY_DISABLED));
copyAction.setText(ActionMessages.WatchExpressionDialogMenu_1);
final TextViewerAction pasteAction = new TextViewerAction(fSnippetViewer, ITextOperationTarget.PASTE);
pasteAction.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_TOOL_PASTE));
pasteAction.setDisabledImageDescriptor(PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_TOOL_PASTE_DISABLED));
pasteAction.setText(ActionMessages.WatchExpressionDialogMenu_2);
// context menu
MenuManager menuManager = new MenuManager();
menuManager.add(cutAction);
menuManager.add(copyAction);
menuManager.add(pasteAction);
menuManager.addMenuListener(new IMenuListener() {
public void menuAboutToShow(IMenuManager manager) {
cutAction.update();
copyAction.update();
pasteAction.update();
}
});
Menu menu = menuManager.createContextMenu(fSnippetViewer.getTextWidget());
fSnippetViewer.getTextWidget().setMenu(menu);
// enable checkbox
fCheckBox= new Button(container, SWT.CHECK | SWT.LEFT);
fCheckBox.setText(ActionMessages.WatchExpressionDialog_3);
fCheckBox.setSelection(fWatchExpression.isEnabled());
fCheckBox.setFont(font);
applyDialogFont(container);
fSnippetViewer.getControl().setFocus();
return container;
}
/**
* @see org.eclipse.jface.dialogs.Dialog#okPressed()
*/
protected void okPressed() {
fWatchExpression.setEnabled(fCheckBox.getSelection());
fWatchExpression.setExpressionText(fSnippetViewer.getDocument().get());
super.okPressed();
}
/**
* Check the field values and display a message in the status if needed.
*/
private void checkValues() {
StatusInfo status= new StatusInfo();
if (fSnippetViewer.getDocument().get().trim().length() == 0) {
status.setError(ActionMessages.WatchExpressionDialog_4);
}
updateStatus(status);
}
}
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