| /******************************************************************************* |
| * Copyright (c) 2004, 2005 Sybase, Inc. 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: |
| * Sybase, Inc. - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jst.jsf.facesconfig.ui.pageflow.editpart; |
| |
| import org.eclipse.draw2d.IFigure; |
| import org.eclipse.draw2d.Label; |
| import org.eclipse.draw2d.geometry.Dimension; |
| import org.eclipse.gef.GraphicalEditPart; |
| import org.eclipse.gef.tools.CellEditorLocator; |
| import org.eclipse.gef.tools.DirectEditManager; |
| import org.eclipse.swt.SWT; |
| 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 Pageflow node |
| * |
| * @author - Xiaoguang Zhang |
| */ |
| public class PageflowDirectEditManager extends DirectEditManager { |
| /** text font */ |
| protected Font scaledFont; |
| |
| /** verify listener for the text control */ |
| protected VerifyListener verifyListener; |
| |
| /** the direct editor's parent label. */ |
| protected Label label; |
| |
| /** |
| * Creates a new PageflowDirectEditManager with the given attributes. |
| * |
| * @param source |
| * the source EditPart |
| * @param editorType |
| * type of editor |
| * @param locator |
| * the CellEditorLocator |
| */ |
| public PageflowDirectEditManager(GraphicalEditPart source, |
| Class editorType, CellEditorLocator locator, Label label) { |
| super(source, editorType, locator); |
| this.label = label; |
| } |
| |
| /* |
| * (non-javadoc) |
| * |
| * @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.isDisposed()) { |
| disposeFont.dispose(); |
| } |
| } |
| |
| /* |
| * (non-javadoc) |
| * |
| * @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(); |
| // get the left string of the new input character |
| String leftText = oldText.substring(0, event.start); |
| // get the right string of the new input charactor |
| 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); |
| |
| // set the initial text, font, to the direct editor |
| String initialLabelText = label.getText(); |
| getCellEditor().setValue(initialLabelText); |
| IFigure figure = getEditPart().getFigure(); |
| final Font figureFont = figure.getFont(); |
| // take a copy of the font data for the label we are cell editing |
| FontData data = figureFont.getFontData()[0]; |
| Dimension fontSize = new Dimension(0, data.getHeight()); |
| label.translateToAbsolute(fontSize); |
| data.setHeight(fontSize.height); |
| |
| if (scaledFont != null && !scaledFont.isDisposed()) |
| { |
| scaledFont.dispose(); |
| } |
| scaledFont = new Font(figureFont.getDevice(), data); |
| |
| text.setFont(scaledFont); |
| text.selectAll(); |
| } |
| |
| /* |
| * (non-javadoc) |
| * |
| * @see org.eclipse.gef.tools.DirectEditManager#unhookListeners() |
| */ |
| protected void unhookListeners() { |
| super.unhookListeners(); |
| Text text = (Text) getCellEditor().getControl(); |
| text.removeVerifyListener(verifyListener); |
| verifyListener = null; |
| } |
| |
| } |