| /******************************************************************************* |
| * Copyright (c) 2000, 2010 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.gef.examples.flow.parts; |
| |
| import org.eclipse.draw2d.IFigure; |
| import org.eclipse.draw2d.Label; |
| import org.eclipse.draw2d.geometry.Dimension; |
| import org.eclipse.draw2d.rap.swt.SWT; |
| import org.eclipse.gef.GraphicalEditPart; |
| import org.eclipse.gef.tools.CellEditorLocator; |
| import org.eclipse.gef.tools.DirectEditManager; |
| import org.eclipse.swt.events.VerifyEvent; |
| import org.eclipse.swt.events.VerifyListener; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.FontData; |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.widgets.Text; |
| |
| /** |
| * DirectEditManager for Activities |
| * |
| * @author Daniel Lee |
| */ |
| public class ActivityDirectEditManager extends DirectEditManager { |
| |
| Font scaledFont; |
| protected VerifyListener verifyListener; |
| protected Label activityLabel; |
| |
| /** |
| * Creates a new ActivityDirectEditManager with the given attributes. |
| * |
| * @param source |
| * the source EditPart |
| * @param editorType |
| * type of editor |
| * @param locator |
| * the CellEditorLocator |
| */ |
| public ActivityDirectEditManager(GraphicalEditPart source, |
| Class editorType, CellEditorLocator locator, Label label) { |
| super(source, editorType, locator); |
| activityLabel = label; |
| } |
| |
| /** |
| * @see org.eclipse.gef.tools.DirectEditManager#bringDown() |
| */ |
| protected void bringDown() { |
| // This method might be re-entered when super.bringDown() is called. |
| Font disposeFont = scaledFont; |
| scaledFont = null; |
| super.bringDown(); |
| if (disposeFont != null) |
| disposeFont.dispose(); |
| } |
| |
| /** |
| * @see org.eclipse.gef.tools.DirectEditManager#initCellEditor() |
| */ |
| protected void initCellEditor() { |
| Text text = (Text) getCellEditor().getControl(); |
| verifyListener = new VerifyListener() { |
| public void verifyText(VerifyEvent event) { |
| Text text = (Text) getCellEditor().getControl(); |
| String oldText = text.getText(); |
| String leftText = oldText.substring(0, event.start); |
| String rightText = oldText.substring(event.end, |
| oldText.length()); |
| GC gc = new GC(text); |
| Point size = gc.textExtent(leftText + event.text + rightText); |
| gc.dispose(); |
| if (size.x != 0) |
| size = text.computeSize(size.x, SWT.DEFAULT); |
| getCellEditor().getControl().setSize(size.x, size.y); |
| } |
| }; |
| text.addVerifyListener(verifyListener); |
| |
| String initialLabelText = activityLabel.getText(); |
| getCellEditor().setValue(initialLabelText); |
| IFigure figure = getEditPart().getFigure(); |
| scaledFont = figure.getFont(); |
| FontData data = scaledFont.getFontData()[0]; |
| Dimension fontSize = new Dimension(0, data.getHeight()); |
| activityLabel.translateToAbsolute(fontSize); |
| data.setHeight(fontSize.height); |
| scaledFont = new Font(null, data); |
| |
| text.setFont(scaledFont); |
| } |
| |
| /** |
| * @see org.eclipse.gef.tools.DirectEditManager#unhookListeners() |
| */ |
| protected void unhookListeners() { |
| super.unhookListeners(); |
| Text text = (Text) getCellEditor().getControl(); |
| text.removeVerifyListener(verifyListener); |
| verifyListener = null; |
| } |
| |
| } |