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.model.wspm.tuhh.ui.panel.vegetation.pages; import java.util.Collections; import java.util.Set; import java.util.TreeSet; import org.eclipse.core.databinding.observable.value.IObservableValue; import org.eclipse.jface.databinding.viewers.ViewersObservables; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Group; import org.eclipse.ui.forms.events.HyperlinkAdapter; import org.eclipse.ui.forms.events.HyperlinkEvent; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.forms.widgets.ImageHyperlink; import org.kalypso.commons.databinding.DataBinder; import org.kalypso.commons.databinding.IDataBinding; import org.kalypso.commons.databinding.SimpleDataBinding; import org.kalypso.commons.java.lang.Objects; import org.kalypso.contribs.eclipse.ui.pager.AbstractElementPage; import org.kalypso.contribs.eclipse.ui.progress.ProgressUtilities; import org.kalypso.model.wspm.core.IWspmPointProperties; import org.kalypso.model.wspm.core.gml.classifications.IVegetationClass; import org.kalypso.model.wspm.core.gml.classifications.IWspmClassification; import org.kalypso.model.wspm.core.gml.classifications.helper.WspmClassifications; import org.kalypso.model.wspm.core.profil.IProfile; import org.kalypso.model.wspm.core.profil.operation.ProfileOperation; import org.kalypso.model.wspm.core.profil.operation.ProfileOperationJob; import org.kalypso.model.wspm.core.util.vegetation.UpdateVegetationProperties; import org.kalypso.model.wspm.tuhh.ui.i18n.Messages; import org.kalypso.model.wspm.tuhh.ui.panel.classifications.utils.ClassificationLabelProvider; import org.kalypso.model.wspm.tuhh.ui.panel.classifications.utils.WspmClassificationClassesComparator; import org.kalypso.model.wspm.tuhh.ui.panel.roughness.utils.RoughnessPanelHelper; import org.kalypso.model.wspm.tuhh.ui.panel.vegetation.utils.VegetationsDataModel; import org.kalypso.observation.result.IComponent; /** * @author Dirk Kuch */ public class VegetationClassesPage extends AbstractElementPage { protected final IProfile m_profile; private IDataBinding m_binding; private final VegetationsDataModel m_model; private IVegetationClass[] m_vegetations; public VegetationClassesPage(final IProfile profile, final IComponent component) { super(VegetationClassesPage.class.getName()); m_profile = profile; m_model = new VegetationsDataModel(profile, component); } @Override public String getLabel() { return Messages.getString("VegetationClassesPage.0"); //$NON-NLS-1$ } @Override public void dispose() { } @Override public void render(final Composite body, final FormToolkit toolkit) { final Group group = new Group(body, SWT.NULL); group.setLayout(new GridLayout(2, false)); group.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, false)); group.setText(Messages.getString("VegetationClassesPage.1")); //$NON-NLS-1$ toolkit.adapt(group); // FIXME: probably should use DatabindingWizardPage m_binding = new SimpleDataBinding(toolkit); build(group, toolkit, Messages.getString("VegetationClassesPage.2"), //$NON-NLS-1$ VegetationsDataModel.PROPERTY_LEFT_FLOODPLAIN_CLASS); build(group, toolkit, Messages.getString("VegetationClassesPage.4"), //$NON-NLS-1$ VegetationsDataModel.PROPERTY_RIGHT_FLOODPLAIN_CLASS); final ImageHyperlink lnkRemove = toolkit.createImageHyperlink(group, SWT.NULL); lnkRemove.setLayoutData(new GridData(SWT.RIGHT, GridData.FILL, true, false, 2, 0)); lnkRemove.setText(String.format(Messages.getString("VegetationClassesPage.5"), getLabel())); //$NON-NLS-1$ lnkRemove.addHyperlinkListener(new HyperlinkAdapter() { @Override public void linkActivated(final org.eclipse.ui.forms.events.HyperlinkEvent e) { if (MessageDialog.openConfirm(lnkRemove.getShell(), Messages.getString("VegetationClassesPage.10"), //$NON-NLS-1$ Messages.getString("VegetationClassesPage.11"))) //$NON-NLS-1$ RoughnessPanelHelper.removeRoughness(m_profile, IWspmPointProperties.POINT_PROPERTY_BEWUCHS_CLASS); } }); if (hasActions()) { final Group grActions = new Group(body, SWT.NULL); grActions.setLayout(new GridLayout()); grActions.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, false)); grActions.setText(Messages.getString("VegetationClassesPage.6")); //$NON-NLS-1$ addWriteValueLink(grActions, toolkit, Messages.getString("VegetationClassesPage.7")); //$NON-NLS-1$ toolkit.adapt(grActions); } } private void addWriteValueLink(final Composite body, final FormToolkit toolkit, final String label) { final ImageHyperlink lnk = toolkit.createImageHyperlink(body, SWT.NULL); lnk.setText(label); lnk.addHyperlinkListener(new HyperlinkAdapter() { @Override public void linkActivated(final HyperlinkEvent e) { final boolean overwriteValues = MessageDialog.openQuestion(lnk.getShell(), Messages.getString("VegetationClassesPage.8"), //$NON-NLS-1$ Messages.getString("VegetationClassesPage.9")); //$NON-NLS-1$ final UpdateVegetationProperties worker = new UpdateVegetationProperties(m_profile, overwriteValues); ProgressUtilities.busyCursorWhile(worker); final ProfileOperation operation = new ProfileOperation("updating vegatation values", m_profile, //$NON-NLS-1$ true); operation.addChange(worker.getChanges()); new ProfileOperationJob(operation).schedule(); } }); } private boolean hasActions() { return WspmClassifications.hasVegetationProperties(m_profile); } protected void build(final Composite body, final FormToolkit toolkit, final String label, final String property) { toolkit.createLabel(body, label); final ComboViewer viewer = new ComboViewer(body, SWT.READ_ONLY | SWT.SINGLE | SWT.BORDER); viewer.getCombo().setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); viewer.setContentProvider(new ArrayContentProvider()); viewer.setLabelProvider( new ClassificationLabelProvider(m_profile, IWspmPointProperties.POINT_PROPERTY_BEWUCHS_CLASS)); viewer.setInput(getVegetationClasses()); final IObservableValue viewerSelection = ViewersObservables.observeSingleSelection(viewer); final IObservableValue modelValue = m_model.getObservableValue(property); m_binding.bindValue(new DataBinder(viewerSelection, modelValue)); } private IVegetationClass[] getVegetationClasses() { if (m_vegetations != null) return m_vegetations; final IWspmClassification classification = WspmClassifications.getClassification(m_profile); if (Objects.isNull(classification)) return new IVegetationClass[] {}; final Set<IVegetationClass> vegetations = new TreeSet<>(new WspmClassificationClassesComparator()); Collections.addAll(vegetations, classification.getVegetationClasses()); m_vegetations = vegetations.toArray(new IVegetationClass[] {}); return m_vegetations; } }