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.ui.dialog.straighten; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.beans.BeansObservables; import org.eclipse.core.databinding.observable.value.IObservableValue; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.jface.databinding.viewers.ViewersObservables; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.dialogs.TitleAreaDialog; 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.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.kalypso.contribs.eclipse.jface.dialog.DialogSettingsUtils; import org.kalypso.model.wspm.core.gml.IProfileFeature; import org.kalypso.model.wspm.core.profil.IProfile; import org.kalypso.model.wspm.core.profil.wrappers.Profiles; import org.kalypso.model.wspm.ui.KalypsoModelWspmUIPlugin; import org.kalypso.model.wspm.ui.action.ProfilesSelection; import org.kalypso.model.wspm.ui.dialog.straighten.data.CORRECT_POINTS_ENABLEMENT; import org.kalypso.model.wspm.ui.dialog.straighten.provider.CorrectPointsEnablementLabelProvider; import org.kalypso.model.wspm.ui.i18n.Messages; import org.kalypsodeegree.model.geometry.GM_Exception; import com.vividsolutions.jts.geom.Point; /** * Dialog that asks for some settings, used by the {@link org.kalypso.model.wspm.ui.action.straighten.StraightenProfileWidget}. * * @author Holger Albert */ public class StraightenProfileDialog extends TitleAreaDialog { /** * The dialog settings. */ private IDialogSettings m_settings; /** * The straighten profile data. */ private StraightenProfileData m_data; /** * The data binding context. */ private final DataBindingContext m_bindingContext; /** * The constructor. * * @param parentShell * The parent SWT shell. * @param profileSelection * The selection, which contains the profile. * @param profile * The profile. * @param firstPoint * The first point. * @param secondPoint * The second point. */ public StraightenProfileDialog(final Shell parentShell, final ProfilesSelection profileSelection, final IProfileFeature profile, final Point firstPoint, final Point secondPoint) { super(parentShell); initializeData(profileSelection, profile, firstPoint, secondPoint); m_bindingContext = new DataBindingContext(); } @Override protected Control createDialogArea(final Composite parent) { /* Set the title. */ final String title = Messages.getString("StraightenProfileDialog_0"); //$NON-NLS-1$ getShell().setText(title); setTitle(title); /* Create the main composite. */ final Composite main = (Composite) super.createDialogArea(parent); main.setLayout(new GridLayout(1, false)); main.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); /* Create a label. */ final Label questionLabel = new Label(main, SWT.NONE); questionLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); questionLabel.setText(String.format(Messages.getString("StraightenProfileDialog_1"), m_data.getFirstWidth(), //$NON-NLS-1$ m_data.getSecondWidth())); /* Create a label. */ final Label emptyLabel = new Label(main, SWT.NONE); emptyLabel.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); emptyLabel.setText(""); //$NON-NLS-1$ /* Create a combo viewer. */ final ComboViewer viewer1 = new ComboViewer(main, SWT.READ_ONLY); viewer1.getCombo().setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); viewer1.setLabelProvider(new CorrectPointsEnablementLabelProvider()); viewer1.setContentProvider(new ArrayContentProvider()); viewer1.setInput(CORRECT_POINTS_ENABLEMENT.values()); /* Create a combo viewer. */ // final ComboViewer viewer2 = new ComboViewer( main, SWT.READ_ONLY ); // viewer2.getCombo().setLayoutData( new GridData( SWT.FILL, SWT.CENTER, true, false ) ); // viewer2.setLabelProvider( new CorrectPointsAmountLabelProvider() ); // viewer2.setContentProvider( new ArrayContentProvider() ); // viewer2.setInput( CORRECT_POINTS_AMOUNT.values() ); /* Do the data binding. */ bindViewer1(viewer1); // bindViewer2( viewer2 ); // bindEnablement( viewer2 ); return main; } /** * @see org.eclipse.jface.dialogs.Dialog#okPressed() */ @Override protected void okPressed() { m_data.storeSettings(m_settings); super.okPressed(); } /** * @see org.eclipse.jface.dialogs.Dialog#isResizable() */ @Override protected boolean isResizable() { return true; } /** * This function initializes the points. * * @param profileSelection * The selection, which contains the profile. * @param profile * The profile. * @param firstPoint * The first point. * @param secondPoint * The second point. */ private void initializeData(final ProfilesSelection profileSelection, final IProfileFeature profile, final Point firstPoint, final Point secondPoint) { try { /* Get the profile. */ final IProfile profil = profile.getProfile(); /* Get the width of both points. */ final double firstWidth = Profiles.getWidth(profil, firstPoint); final double secondWidth = Profiles.getWidth(profil, secondPoint); /* Get the dialog settings. */ m_settings = DialogSettingsUtils.getDialogSettings(KalypsoModelWspmUIPlugin.getDefault(), getClass().getName()); /* The first point lies before the second point in the profile. */ if (firstWidth <= secondWidth) { m_data = new StraightenProfileData(profileSelection, profile, firstPoint, secondPoint, firstWidth, secondWidth); m_data.loadSettings(m_settings); return; } /* Switch the points. */ m_data = new StraightenProfileData(profileSelection, profile, secondPoint, firstPoint, secondWidth, firstWidth); m_data.loadSettings(m_settings); } catch (final GM_Exception ex) { ex.printStackTrace(); } } /** * This function binds the viewer. * * @param viewer * The viewer to bind. */ private void bindViewer1(final ComboViewer viewer) { /* The values. */ final IObservableValue comboValue = ViewersObservables.observeSingleSelection(viewer); final IObservableValue typeValue = BeansObservables.observeValue(m_data, StraightenProfileData.PROPERTY_CORRECT_POINTS_ENABLEMENT); /* Bind the value. */ m_bindingContext.bindValue(comboValue, typeValue); } /** * This function binds the viewer. * * @param viewer * The viewer to bind. */ @SuppressWarnings("unused") private void bindViewer2(final ComboViewer viewer) { /* The values. */ final IObservableValue comboValue = ViewersObservables.observeSingleSelection(viewer); final IObservableValue typeValue = BeansObservables.observeValue(m_data, StraightenProfileData.PROPERTY_CORRECT_POINTS_AMOUNT); /* Bind the value. */ m_bindingContext.bindValue(comboValue, typeValue); } /** * This function enables/disables the second viewer, according to the state of the first viewer. * * @param viewer2 * The second viewer. */ @SuppressWarnings("unused") private void bindEnablement(final ComboViewer viewer2) { /* The values. */ final IObservableValue targetEnablement = SWTObservables.observeEnabled(viewer2.getCombo()); final IObservableValue modelEnablement = BeansObservables.observeValue(m_data, StraightenProfileData.PROPERTY_CORRECT_POINTS_AMOUNT_ENABLED); /* Bind the value. */ m_bindingContext.bindValue(targetEnablement, modelEnablement); } /** * This function returns the the straighten profile data. * * @return The straighten profile data. */ public StraightenProfileData getData() { return m_data; } }