Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2005 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 * Exadel, Inc. * Red Hat, Inc. *******************************************************************************/ package org.jboss.tools.common.gef.outline.xpl; import org.eclipse.core.runtime.IAdaptable; import org.eclipse.draw2d.LightweightSystem; import org.eclipse.draw2d.MarginBorder; import org.eclipse.draw2d.Viewport; import org.eclipse.draw2d.parts.ScrollableThumbnail; import org.eclipse.draw2d.parts.Thumbnail; import org.eclipse.gef.EditPartViewer; import org.eclipse.gef.GraphicalViewer; import org.eclipse.gef.LayerConstants; import org.eclipse.gef.RootEditPart; import org.eclipse.gef.editparts.ScalableFreeformRootEditPart; import org.eclipse.gef.editparts.ZoomManager; import org.eclipse.gef.ui.parts.ContentOutlinePage; import org.eclipse.gef.ui.parts.SelectionSynchronizer; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IAction; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.IToolBarManager; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Canvas; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.ui.part.IPageSite; import org.eclipse.ui.part.PageBook; public class DiagramContentOutlinePage extends ContentOutlinePage implements IAdaptable { //Warning: these icons may be moved from xpl! private static String OUTLINE_ICON_PATH = "outline.gif"; //$NON-NLS-1$ private static String OVERVIEW_ICON_PATH = "overview.gif"; //$NON-NLS-1$ private org.eclipse.ui.views.contentoutline.ContentOutlinePage poutline; private GraphicalViewer graphicalViewer; private SelectionSynchronizer selectionSynchronizer; private PageBook pageBook; private Control outline; private Canvas overview; private IAction showOutlineAction, showOverviewAction; static final int ID_OUTLINE = 0; static final int ID_OVERVIEW = 1; private Thumbnail thumbnail; IPageSite pSite; public DiagramContentOutlinePage(EditPartViewer viewer) { super(viewer); } public void setTreeOutline(org.eclipse.ui.views.contentoutline.ContentOutlinePage poutline) { this.poutline = poutline; } public void setGraphicalViewer(GraphicalViewer graphicalViewer) { this.graphicalViewer = graphicalViewer; } public GraphicalViewer getGraphicalViewer() { return graphicalViewer; } public void setSelectionSynchronizer(SelectionSynchronizer selectionSynchronizer) { this.selectionSynchronizer = selectionSynchronizer; } public SelectionSynchronizer getSelectionSynchronizer() { return selectionSynchronizer; } public void init(IPageSite pageSite) { super.init(pageSite); this.pSite = pageSite; } protected void configureOutlineViewer() { IToolBarManager tbm = getSite().getActionBars().getToolBarManager(); IMenuManager mm = getSite().getActionBars().getMenuManager(); showOutlineAction = new Action() { public void run() { showPage(ID_OUTLINE); } }; showOutlineAction.setImageDescriptor(ImageDescriptor.createFromFile(getClass(), OUTLINE_ICON_PATH)); showOutlineAction.setToolTipText(GEFUIMessages.TREE); tbm.add(showOutlineAction); showOutlineAction.setText(GEFUIMessages.SHOW_TREE); mm.add(showOutlineAction); showOverviewAction = new Action() { public void run() { showPage(ID_OVERVIEW); } }; showOverviewAction.setToolTipText(GEFUIMessages.DIAGRAM_NAVIGATOR); showOverviewAction.setImageDescriptor(ImageDescriptor.createFromFile(getClass(), OVERVIEW_ICON_PATH)); tbm.add(showOverviewAction); showOverviewAction.setText(GEFUIMessages.SHOW_DIAGRAM_NAVIGATOR); mm.add(showOverviewAction); showPage(ID_OUTLINE); } public void createControl(Composite parent) { pageBook = new PageBook(parent, SWT.NONE); poutline.init(pSite); poutline.createControl(pageBook); outline = poutline.getControl(); overview = new Canvas(pageBook, SWT.NONE); pageBook.showPage(outline); configureOutlineViewer(); hookOutlineViewer(); initializeOutlineViewer(); } public void dispose() { if (poutline != null) { // poutline.dispose(); // poutline = null; } unhookOutlineViewer(); if (thumbnail != null) thumbnail.deactivate(); super.dispose(); } public Object getAdapter(Class type) { if (type == ZoomManager.class) { return ((ScalableFreeformRootEditPart) getGraphicalViewer().getRootEditPart()).getZoomManager(); } return null; } public Control getControl() { return pageBook; } protected void hookOutlineViewer() { getSelectionSynchronizer().addViewer(getViewer()); } protected void initializeOutlineViewer() { //getViewer().setContents(getLogicDiagram()); } protected void initializeOverview() { LightweightSystem lws = new LightweightSystem(overview); RootEditPart rep = getGraphicalViewer().getRootEditPart(); if (rep instanceof ScalableFreeformRootEditPart) { ScalableFreeformRootEditPart root = (ScalableFreeformRootEditPart) rep; thumbnail = new ScrollableThumbnail((Viewport) root.getFigure()); thumbnail.setBorder(new MarginBorder(3)); thumbnail.setSource(root.getLayer(LayerConstants.PRINTABLE_LAYERS)); lws.setContents(thumbnail); } } protected void showPage(int id) { if (id == ID_OUTLINE) { showOutlineAction.setChecked(true); showOverviewAction.setChecked(false); pageBook.showPage(outline); if (thumbnail != null) thumbnail.setVisible(false); } else if (id == ID_OVERVIEW) { if (thumbnail == null) initializeOverview(); showOutlineAction.setChecked(false); showOverviewAction.setChecked(true); pageBook.showPage(overview); thumbnail.setVisible(true); } } protected void unhookOutlineViewer() { getSelectionSynchronizer().removeViewer(getViewer()); } }