Java tutorial
/* * ==================================================================== * * The ObjectStyle Group Software License, Version 1.0 * * Copyright (c) 2006 The ObjectStyle Group and individual authors of the * software. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The end-user documentation included with the redistribution, if any, must * include the following acknowlegement: "This product includes software * developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately, * this acknowlegement may appear in the software itself, if and wherever such * third-party acknowlegements normally appear. * * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or * promote products derived from this software without prior written permission. * For written permission, please contact andrus@objectstyle.org. * * 5. Products derived from this software may not be called "ObjectStyle" nor * may "ObjectStyle" appear in their names without prior written permission of * the ObjectStyle Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many individuals on * behalf of the ObjectStyle Group. For more information on the ObjectStyle * Group, please see <http://objectstyle.org/>. * */ package org.objectstyle.wolips.eomodeler.outline; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.util.HashSet; import java.util.Set; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.IToolBarManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.action.Separator; import org.eclipse.jface.viewers.ColumnViewerEditor; import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent; import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.TreeViewerColumn; import org.eclipse.jface.viewers.TreeViewerEditor; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.Tree; import org.eclipse.ui.IActionBars; import org.eclipse.ui.IWorkbenchActionConstants; import org.eclipse.ui.part.IPageSite; import org.eclipse.ui.views.contentoutline.ContentOutlinePage; import org.objectstyle.wolips.eomodeler.Activator; import org.objectstyle.wolips.eomodeler.core.model.EOModel; import org.objectstyle.wolips.eomodeler.editors.EOModelClipboardHandler; import org.objectstyle.wolips.eomodeler.editors.EOModelEditor; public class EOModelContentOutlinePage extends ContentOutlinePage implements PropertyChangeListener { private EOModelTreeViewUpdater _updater; private EOModelEditor _editor; private EOModelClipboardHandler _clipboardHandler; private ToggleNonClassPropertiesAction _toggleNonClassPropertiesAction; private ToggleModelGroupAction _toggleModelGroupAction; private Menu _contextMenu; private boolean _selectedWithOutline; public EOModelContentOutlinePage(EOModelEditor editor) { _selectedWithOutline = true; _clipboardHandler = new EOModelClipboardHandler(); _editor = editor; } protected void updateClipboardHandler() { IPageSite site = getSite(); if (site != null && _editor != null) { IActionBars actionBars = site.getActionBars(); _clipboardHandler.attach(actionBars, _editor); } } public void createControl(Composite parent) { super.createControl(parent); TreeViewer treeViewer = getTreeViewer(); //TreeColumnLayout outlineTreeLayout = new TreeColumnLayout(); //_treeComposite.setLayout(outlineTreeLayout); final TreeViewerColumn column = new TreeViewerColumn(treeViewer, SWT.NONE); column.setLabelProvider(new EOModelOutlineColumnLabelProvider(treeViewer)); column.setEditingSupport(new EOModelOutlineEditingSupport(treeViewer)); column.getColumn().setWidth(400); //outlineTreeLayout.setColumnData(column.getColumn(), new ColumnWeightData(100, true)); ColumnViewerEditorActivationStrategy strategy = new ColumnViewerEditorActivationStrategy(treeViewer) { @Override protected boolean isEditorActivationEvent(ColumnViewerEditorActivationEvent event) { return event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION; } }; TreeViewerEditor.create(treeViewer, null, strategy, ColumnViewerEditor.DEFAULT); /* parent.addControlListener(new ControlAdapter() { @Override public void controlResized(ControlEvent e) { super.controlResized(e); Composite widget = (Composite)e.getSource(); column.getColumn().setWidth(widget.getSize().x); System.out.println(".controlResized: " + widget.getSize()); } }); */ if (_updater != null) { _updater.dispose(); } _updater = new EOModelTreeViewUpdater(treeViewer, new EOModelOutlineContentProvider(true, true, true, true, true, true, true, true)); _updater.setModel(_editor.getModel()); updateClipboardHandler(); // AK: commenting prevents an error in swt // setFocus(); IActionBars actionBars = getSite().getActionBars(); IToolBarManager toolBarManager = actionBars.getToolBarManager(); _toggleNonClassPropertiesAction = new ToggleNonClassPropertiesAction(); toolBarManager.add(_toggleNonClassPropertiesAction); _toggleModelGroupAction = new ToggleModelGroupAction(); toolBarManager.add(_toggleModelGroupAction); MenuManager menuManager = new MenuManager(); menuManager.setRemoveAllWhenShown(true); menuManager.addMenuListener(new IMenuListener() { public void menuAboutToShow(IMenuManager m) { m.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS)); } }); Tree tree = treeViewer.getTree(); _contextMenu = menuManager.createContextMenu(treeViewer.getTree()); tree.setMenu(_contextMenu); getSite().registerContextMenu("org.objectstyle.wolips.eomodeler.outline", menuManager, treeViewer); if (_editor.getModel() == null) { treeViewer.setInput(new EOModelLoading(null)); treeViewer.expandAll(); } } @SuppressWarnings("unchecked") public void propertyChange(PropertyChangeEvent evt) { TreeViewer treeViewer = getTreeViewer(); if (treeViewer != null) { Set<EOModel> oldModels = (Set<EOModel>) evt.getOldValue(); Set<EOModel> newModels = new HashSet<EOModel>((Set<EOModel>) evt.getNewValue()); newModels.removeAll(oldModels); if (newModels.size() == 1) { EOModel newModel = newModels.iterator().next(); Object input = treeViewer.getInput(); if (input instanceof EOModelLoading) { ((EOModelLoading) input).setModel(newModel); } Display.getDefault().asyncExec(new Runnable() { public void run() { getTreeViewer().refresh(getTreeViewer().getInput()); getTreeViewer().expandAll(); } }); } } } @Override public void dispose() { if (_contextMenu != null && !_contextMenu.isDisposed()) { _contextMenu.dispose(); _contextMenu = null; } if (_updater != null) { _updater.dispose(); } super.dispose(); } public void init(IPageSite pageSite) { super.init(pageSite); updateClipboardHandler(); } public boolean isSelectedWithOutline() { return _selectedWithOutline; } @Override protected void fireSelectionChanged(ISelection selection) { super.fireSelectionChanged(selection); } public void selectionChanged(SelectionChangedEvent event) { super.selectionChanged(event); _clipboardHandler.selectionChanged(event); } public void setSelection(ISelection selection) { _selectedWithOutline = false; try { super.setSelection(selection); } finally { _selectedWithOutline = true; } } public EOModelTreeViewUpdater getUpdater() { return _updater; } public void showModelGroup() { _toggleModelGroupAction.showModelGroup(); } public void showModel() { _toggleModelGroupAction.showModel(); } public class ToggleModelGroupAction extends Action { private boolean _showModel; public ToggleModelGroupAction() { _showModel = true; refreshUI(); setImageDescriptor(Activator.getDefault().getImageRegistry().getDescriptor(Activator.EOMODEL_ICON)); } public void toggleChanged() { _showModel = !_showModel; refreshUI(); } public void showModelGroup() { _showModel = false; refreshUI(); } public void showModel() { _showModel = true; refreshUI(); } public void refreshUI() { if (_showModel) { getUpdater().showModel(); setToolTipText("Show ModelGroup"); setChecked(false); } else { getUpdater().showModelGroup(); setToolTipText("Show Model"); setChecked(true); } } @Override public void run() { toggleChanged(); } } public class ToggleNonClassPropertiesAction extends Action { private boolean _showNonClassProperties; public ToggleNonClassPropertiesAction() { _showNonClassProperties = true; refreshUI(); setImageDescriptor( Activator.getDefault().getImageRegistry().getDescriptor(Activator.CLASS_PROPERTY_ICON)); } public void toggleChanged() { _showNonClassProperties = !_showNonClassProperties; refreshUI(); } public void refreshUI() { if (_showNonClassProperties) { getUpdater().showNonClassProperties(); setToolTipText("Hide Non-Class Properties"); setChecked(true); } else { getUpdater().hideNonClassProperties(); setToolTipText("Show Non-Class Properties"); setChecked(false); } } @Override public void run() { toggleChanged(); } } }