| /******************************************************************************* |
| * Copyright (c) 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 API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.pde.internal.ui.editor; |
| |
| import org.eclipse.jface.text.information.IInformationPresenter; |
| import org.eclipse.jface.text.source.*; |
| import org.eclipse.jface.text.source.projection.ProjectionViewer; |
| import org.eclipse.pde.internal.ui.editor.text.ChangeAwareSourceViewerConfiguration; |
| import org.eclipse.swt.widgets.Composite; |
| |
| /** |
| * PDEProjectionViewer |
| * |
| */ |
| public class PDEProjectionViewer extends ProjectionViewer { |
| |
| /** |
| * Text operation code for requesting the quick outline for the current input. |
| */ |
| public static final int QUICK_OUTLINE = 513; |
| |
| private IInformationPresenter fOutlinePresenter; |
| |
| private boolean fIsQuickOutlineEnabled; |
| |
| /** |
| * @param parent |
| * @param ruler |
| * @param overviewRuler |
| * @param showsAnnotationOverview |
| * @param styles |
| */ |
| public PDEProjectionViewer(Composite parent, IVerticalRuler ruler, IOverviewRuler overviewRuler, boolean showsAnnotationOverview, int styles, boolean isQuickOutlineEnabled) { |
| super(parent, ruler, overviewRuler, showsAnnotationOverview, styles); |
| |
| fIsQuickOutlineEnabled = isQuickOutlineEnabled; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.source.projection.ProjectionViewer#doOperation(int) |
| */ |
| public void doOperation(int operation) { |
| // Ensure underlying text widget is defined |
| if ((getTextWidget() == null) || getTextWidget().isDisposed()) { |
| return; |
| } |
| // Handle quick outline operation |
| if (operation == QUICK_OUTLINE) { |
| if (fOutlinePresenter != null) { |
| fOutlinePresenter.showInformation(); |
| } |
| return; |
| } |
| // Handle default operations |
| super.doOperation(operation); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.source.projection.ProjectionViewer#canDoOperation(int) |
| */ |
| public boolean canDoOperation(int operation) { |
| // Verify quick outline operation |
| if (operation == QUICK_OUTLINE) { |
| if (fOutlinePresenter == null) { |
| return false; |
| } |
| return true; |
| } |
| // Verfify default operations |
| return super.canDoOperation(operation); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.source.SourceViewer#configure(org.eclipse.jface.text.source.SourceViewerConfiguration) |
| */ |
| public void configure(SourceViewerConfiguration configuration) { |
| // Ensure underlying text widget is defined |
| if ((getTextWidget() == null) || getTextWidget().isDisposed()) { |
| return; |
| } |
| // Configure default operations |
| super.configure(configuration); |
| // Configure quick outline operation for the source viewer only if the |
| // given source viewer supports it |
| if (fIsQuickOutlineEnabled && configuration instanceof ChangeAwareSourceViewerConfiguration) { |
| ChangeAwareSourceViewerConfiguration sourceConfiguration = (ChangeAwareSourceViewerConfiguration) configuration; |
| fOutlinePresenter = sourceConfiguration.getOutlinePresenter(this); |
| if (fOutlinePresenter != null) { |
| fOutlinePresenter.install(this); |
| } |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.source.SourceViewer#unconfigure() |
| */ |
| public void unconfigure() { |
| // Unconfigure quick outline operation |
| if (fOutlinePresenter != null) { |
| fOutlinePresenter.uninstall(); |
| fOutlinePresenter = null; |
| } |
| // Unconfigure default operations |
| super.unconfigure(); |
| } |
| |
| } |