| //------------------------------------------------------------------------------ |
| // Copyright (c) 2005, 2006 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 implementation |
| //------------------------------------------------------------------------------ |
| package org.eclipse.epf.authoring.gef.edit; |
| |
| import org.eclipse.draw2d.FigureUtilities; |
| import org.eclipse.draw2d.IFigure; |
| import org.eclipse.epf.authoring.gef.util.DiagramUIResources; |
| import org.eclipse.epf.authoring.gef.util.TemplateConstants; |
| import org.eclipse.epf.authoring.ui.AuthoringUIPlugin; |
| import org.eclipse.epf.common.serviceability.MsgDialog; |
| import org.eclipse.epf.diagram.model.Node; |
| import org.eclipse.epf.diagram.model.TypedNode; |
| import org.eclipse.epf.diagram.model.WorkBreakdownElementNode; |
| import org.eclipse.epf.library.edit.util.ProcessUtil; |
| import org.eclipse.epf.uma.Activity; |
| import org.eclipse.epf.uma.BreakdownElement; |
| import org.eclipse.epf.uma.GraphNode; |
| import org.eclipse.epf.uma.Property; |
| import org.eclipse.gef.GraphicalEditPart; |
| import org.eclipse.gef.tools.CellEditorLocator; |
| import org.eclipse.gef.tools.DirectEditManager; |
| import org.eclipse.jface.viewers.TextCellEditor; |
| 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.FontMetrics; |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Text; |
| |
| /** |
| * Manages the direct edit operation by creating and maintaining the |
| * {@link org.eclipse.jface.viewers.CellEditor} and executing the resulting command if |
| * the cell editor value has changed. Specifically for FreeText. |
| * @author Shashidhar Kannoori |
| * @since 1.0 |
| */ |
| public class FreeTextDirectEditManager extends DirectEditManager { |
| |
| /* |
| * |
| */ |
| protected VerifyListener verifyListener; |
| private Font scaledFont; |
| protected IFigure figure; |
| |
| public FreeTextDirectEditManager(GraphicalEditPart source, Class editorType, CellEditorLocator locator, IFigure figure) { |
| super(source, editorType, locator); |
| this.figure = figure; |
| // TODO Auto-generated constructor stub |
| } |
| |
| /** |
| * @see org.eclipse.gef.tools.DirectEditManager#bringDown() |
| */ |
| protected void bringDown() { |
| bringDown(true); |
| } |
| |
| /** |
| * @see org.eclipse.gef.tools.DirectEditManager#bringDown() |
| */ |
| protected void bringDown(boolean check) { |
| // This method might be re-entered when super.bringDown() is called. |
| Font disposeFont = scaledFont; |
| scaledFont = null; |
| super.bringDown(); |
| if (disposeFont != null) |
| disposeFont.dispose(); |
| if (check) { |
| Node node = (Node) getEditPart().getModel(); |
| String name = ""; |
| // TODO: Remove this check |
| if (node instanceof WorkBreakdownElementNode) { |
| Object wbelement = node.getObject(); |
| if (wbelement instanceof Activity |
| && ProcessUtil |
| .isExtendingOrLocallyContributing((BreakdownElement) wbelement)) { |
| name = ProcessUtil |
| .getPresentationName((BreakdownElement) wbelement); |
| } |
| |
| } |
| if(node instanceof TypedNode && ((TypedNode)node).getType()==TypedNode.FREE_TEXT){ |
| GraphNode gnode = ((Node) getEditPart().getModel()).getGraphNode(); |
| name = ((Property) gnode.getProperty().get(0)).getValue(); |
| } |
| if (name == null || name.trim().length() == 0) { |
| Display |
| .getCurrent() |
| .asyncExec( |
| new PromptEdit( |
| (NodeEditPart) getEditPart(), |
| DiagramUIResources.err_name_empty)); //$NON-NLS-1$ |
| } |
| } |
| } |
| |
| /** |
| * @see org.eclipse.gef.tools.DirectEditManager#initCellEditor() |
| */ |
| protected void initCellEditor() { |
| TextCellEditor editor = (TextCellEditor) getCellEditor(); |
| editor.setStyle(SWT.MULTI); |
| Text t = (Text) editor.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); |
| } |
| }; |
| t.addVerifyListener(verifyListener); |
| String initialLabelText = ((NodeEditPart) this.getEditPart()) |
| .getDirectEditText(); |
| editor.setValue(initialLabelText); |
| Font f = figure.getFont(); |
| FontMetrics fm = FigureUtilities.getFontMetrics(f); |
| int h = fm.getHeight(); |
| int w = fm.getAverageCharWidth(); |
| t.setSize(initialLabelText.length()*w+100, h+50); |
| |
| if(f != null) |
| t.setFont(f); |
| else |
| t.setFont(TemplateConstants.DEFAULT_FONT); |
| t.selectAll(); |
| } |
| |
| /** |
| * @see org.eclipse.gef.tools.DirectEditManager#unhookListeners() |
| */ |
| protected void unhookListeners() { |
| super.unhookListeners(); |
| if (getCellEditor() != null) { |
| Text text = (Text) getCellEditor().getControl(); |
| if (verifyListener != null) |
| text.removeVerifyListener(verifyListener); |
| verifyListener = null; |
| } |
| } |
| |
| /** |
| * Checks if the given text is valid. Subclasses can override this method. |
| * |
| * @param txt |
| * @return null if the given text is valid, an error message otherwise |
| */ |
| protected String validate(String txt) { |
| return null; |
| } |
| |
| /** |
| * @see org.eclipse.gef.tools.DirectEditManager#commit() |
| */ |
| protected void commit() { |
| String msg = validate((String) getCellEditor().getValue()); |
| if (msg != null) { |
| bringDown(false); |
| Display.getCurrent().asyncExec( |
| new PromptEdit((NodeEditPart) getEditPart(), msg)); |
| return; |
| } |
| super.commit(); |
| } |
| |
| static class PromptEdit implements Runnable { |
| |
| private NodeEditPart part; |
| |
| private String msg; |
| |
| PromptEdit(NodeEditPart part, String msg) { |
| this.part = part; |
| this.msg = msg; |
| } |
| |
| /** |
| * @see java.lang.Runnable#run() |
| */ |
| public void run() { |
| String title = DiagramUIResources.diagram_errorDialog_title_text0; //$NON-NLS-1$ |
| MsgDialog dialog = AuthoringUIPlugin.getDefault().getMsgDialog(); |
| dialog.displayError(title, msg); //$NON-NLS-1$ |
| part.performDirectEdit(); |
| } |
| |
| } |
| } |