Java tutorial
/*---------------- FILE HEADER KALYPSO ------------------------------------------ * * This file is part of kalypso. * Copyright (C) 2004 by: * * Technical University Hamburg-Harburg (TUHH) * Institute of River and coastal engineering * Denickestrae 22 * 21073 Hamburg, Germany * http://www.tuhh.de/wb * * and * * Bjoernsen Consulting Engineers (BCE) * Maria Trost 3 * 56070 Koblenz, Germany * http://www.bjoernsen.de * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Contact: * * E-Mail: * belger@bjoernsen.de * schlienger@bjoernsen.de * v.doemming@tuhh.de * * ---------------------------------------------------------------------------*/ package org.kalypso.contribs.eclipse.ui.dialogs; import java.lang.reflect.InvocationTargetException; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.jface.dialogs.ErrorDialog; import org.eclipse.jface.viewers.AbstractTreeViewer; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.wizard.IWizard; import org.eclipse.jface.wizard.IWizardPage; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.internal.dialogs.ImportExportPage; import org.eclipse.ui.wizards.IWizardCategory; import org.eclipse.ui.wizards.IWizardRegistry; import org.kalypso.contribs.eclipse.jface.operation.ICoreRunnableWithProgress; import org.kalypso.contribs.eclipse.jface.operation.RunnableContextHelper; import org.kalypso.contribs.eclipse.jface.viewers.ViewerUtilities; /** * @author Gernot Belger */ @SuppressWarnings("restriction") public class GenericWizardSelectionPage extends ImportExportPage { private static final String STORE_SELECTED_WIZARD_ID = "STORE_SELECTED_EXPORT_WIZARD_ID"; //$NON-NLS-1$ private static final String STORE_EXPANDED_CATEGORIES = "STORE_EXPANDED_EXPORT_CATEGORIES"; //$NON-NLS-1$ /** * Override to make some methods visible to this class. * * @author Gernot Belger */ class MyCategorizedWizardSelectionTree extends CategorizedWizardSelectionTree { protected MyCategorizedWizardSelectionTree(final IWizardCategory categories, final String msg) { super(categories, msg); } @Override protected Composite createControl(final Composite parent) { return super.createControl(parent); } @Override protected TreeViewer getViewer() { return super.getViewer(); } } MyCategorizedWizardSelectionTree m_exportTree; private final IWizardRegistry m_wizardRegistry; private final String m_settingsName; private final String m_message; private final String m_description; private final GenericWizardFilter m_treeFilter = new GenericWizardFilter(); private boolean m_preInitDone = false; public GenericWizardSelectionPage(final IWizardRegistry registry, final IStructuredSelection currentSelection, final String settingsName, final String message, final String description) { super(PlatformUI.getWorkbench(), currentSelection); m_settingsName = settingsName; m_message = message; m_description = description; m_wizardRegistry = registry; } public void setFilter(final IWizardFilter filter) { m_treeFilter.setFilter(filter); if (m_exportTree != null) ViewerUtilities.refresh(m_exportTree.getViewer(), true); } @Override protected Composite createTreeViewer(final Composite parent) { final IWizardCategory root = m_wizardRegistry.getRootCategory(); m_exportTree = new MyCategorizedWizardSelectionTree(root, m_message); final Composite exportComp = m_exportTree.createControl(parent); final TreeViewer viewer = m_exportTree.getViewer(); viewer.addSelectionChangedListener(new ISelectionChangedListener() { @SuppressWarnings("synthetic-access") @Override public void selectionChanged(final SelectionChangedEvent event) { listSelectionChanged(event.getSelection()); } }); viewer.addDoubleClickListener(new IDoubleClickListener() { @SuppressWarnings("synthetic-access") @Override public void doubleClick(final DoubleClickEvent event) { treeDoubleClicked(event); } }); viewer.addFilter(m_treeFilter); setTreeViewer(viewer); viewer.expandToLevel(AbstractTreeViewer.ALL_LEVELS); return exportComp; } @Override protected void initialize() { super.initialize(); getTreeViewer().expandToLevel(AbstractTreeViewer.ALL_LEVELS); } @Override public void saveWidgetValues() { storeExpandedCategories(m_settingsName + STORE_EXPANDED_CATEGORIES, m_exportTree.getViewer()); storeSelectedCategoryAndWizard(m_settingsName + STORE_SELECTED_WIZARD_ID, m_exportTree.getViewer()); super.saveWidgetValues(); } @Override protected void restoreWidgetValues() { final IWizardCategory exportRoot = m_wizardRegistry.getRootCategory(); expandPreviouslyExpandedCategories(m_settingsName + STORE_EXPANDED_CATEGORIES, exportRoot, m_exportTree.getViewer()); selectPreviouslySelected(m_settingsName + STORE_SELECTED_WIZARD_ID, exportRoot, m_exportTree.getViewer()); super.restoreWidgetValues(); } @Override protected void updateMessage() { setMessage(m_description); super.updateMessage(); } @Override public IWizardPage getNextPage() { final IWizardPage nextPage = super.getNextPage(); if (nextPage == null) return null; final IWizard wizard = nextPage.getWizard(); if (wizard instanceof IGenericWizard) preInit((IGenericWizard) wizard); return nextPage; } private void preInit(final IGenericWizard wizard) { /* Pre-Initialize only once */ if (m_preInitDone) return; m_preInitDone = true; final ICoreRunnableWithProgress operation = new ICoreRunnableWithProgress() { @Override public IStatus execute(final IProgressMonitor monitor) throws CoreException, InvocationTargetException, InterruptedException { return wizard.postInit(monitor); } }; final IStatus result = RunnableContextHelper.execute(getContainer(), true, false, operation); if (!result.isOK()) { final String msg = "Failed to post-initialize wizard."; ErrorDialog.openError(getShell(), wizard.getWindowTitle(), msg, result); } } }