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.gml.ui.commands.exportshape; import java.io.File; import java.nio.charset.Charset; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.kalypso.commons.java.io.FileUtilities; import org.kalypso.contribs.eclipse.jface.viewers.CharsetViewer; import org.kalypso.contribs.eclipse.jface.wizard.FileChooserDelegateSave; import org.kalypso.contribs.eclipse.jface.wizard.FileChooserGroup; import org.kalypso.contribs.eclipse.jface.wizard.FileChooserGroup.FileChangedListener; import org.kalypso.gml.ui.i18n.Messages; import org.kalypso.gml.ui.jface.ShapeCharsetUI; import org.kalypso.ogc.gml.serialize.ShapeSerializer; import org.kalypso.transformation.PrjHelper; import org.kalypso.transformation.ui.CRSSelectionPanel; import org.kalypsodeegree.KalypsoDeegreePlugin; /** * @author Gernot Belger */ public class ExportShapePage extends WizardPage { private static final String SETTINGS_CRS = "crs"; //$NON-NLS-1$ private static final String SETTINGS_WRITE_PRJ = "doWritePrj";//$NON-NLS-1$ private FileChooserGroup m_fileChooserGroup; private final FileChooserDelegateSave m_fileDelegate; private CharsetViewer m_charsetViewer; private String m_crs; private boolean m_writePrj; public ExportShapePage(final String pageName, final String fileName) { super(pageName); setTitle(Messages.getString("ExportShapePage_0")); //$NON-NLS-1$ setDescription(Messages.getString("ExportShapePage_1")); //$NON-NLS-1$ m_fileDelegate = new FileChooserDelegateSave(); m_fileDelegate.setFileName(fileName); // TODO: fetch filter from central place m_fileDelegate.addFilter(Messages.getString("ExportShapePage_2"), "*.shp"); //$NON-NLS-1$ //$NON-NLS-2$ m_fileDelegate.addFilter(Messages.getString("ExportShapePage_4"), "*.dbf"); //$NON-NLS-1$ //$NON-NLS-2$ } @Override public void createControl(final Composite parent) { final Composite panel = new Composite(parent, SWT.NONE); panel.setLayout(new GridLayout(3, false)); createFileChooser(panel); createCoordinateSystemChooser(panel); final Control charsetControl = createCharsetChooser(panel); charsetControl.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); new Label(panel, SWT.NONE); final Control writePrjControl = createWritePrjControl(panel); writePrjControl.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 3, 1)); setControl(panel); } private Control createWritePrjControl(final Composite panel) { final IDialogSettings dialogSettings = getDialogSettings(); if (dialogSettings != null) m_writePrj = dialogSettings.getBoolean(SETTINGS_WRITE_PRJ); final Button button = new Button(panel, SWT.CHECK); button.setText(Messages.getString("ExportShapePage_6")); //$NON-NLS-1$ final String tooltip = String.format(Messages.getString("ExportShapePage_7"), //$NON-NLS-1$ PrjHelper.HTTP_SPATIALREFERENCE_ORG); button.setToolTipText(tooltip); button.setSelection(m_writePrj); button.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(final SelectionEvent e) { handleWritePrjChanged(button.getSelection()); } }); return button; } protected void handleWritePrjChanged(final boolean writePrj) { m_writePrj = writePrj; final IDialogSettings dialogSettings = getDialogSettings(); if (dialogSettings != null) dialogSettings.put(SETTINGS_WRITE_PRJ, writePrj); updateMessage(); } private void createCoordinateSystemChooser(final Composite parent) { final Label label = new Label(parent, SWT.NONE); label.setText(Messages.getString("ExportShapePage_8")); //$NON-NLS-1$ final String tooltip = Messages.getString("ExportShapePage_9"); //$NON-NLS-1$ label.setToolTipText(tooltip); label.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false)); final CRSSelectionPanel crsSelector = new CRSSelectionPanel(parent, CRSSelectionPanel.NO_GROUP); crsSelector.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); crsSelector.setToolTipText(tooltip); final IDialogSettings dialogSettings = getDialogSettings(); if (dialogSettings != null) { final String crs = dialogSettings.get(SETTINGS_CRS); if (crs == null) crsSelector.setSelectedCRS(KalypsoDeegreePlugin.getDefault().getCoordinateSystem()); else crsSelector.setSelectedCRS(crs); } crsSelector.addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(final SelectionChangedEvent event) { handleCrsChanged(crsSelector, dialogSettings); } }); m_crs = crsSelector.getSelectedCRS(); } protected void handleCrsChanged(final CRSSelectionPanel crsSelector, final IDialogSettings dialogSettings) { final String selectedCRS = crsSelector.getSelectedCRS(); if (dialogSettings != null) dialogSettings.put(SETTINGS_CRS, selectedCRS); m_crs = selectedCRS; updateMessage(); } private Control createCharsetChooser(final Composite parent) { final Label charsetLabel = new Label(parent, SWT.NONE); charsetLabel.setText(Messages.getString("ExportShapePage_10")); //$NON-NLS-1$ final Charset shapeDefaultCharset = ShapeSerializer.getShapeDefaultCharset(); final String tooltip = String.format(Messages.getString("ExportShapePage_11"), //$NON-NLS-1$ shapeDefaultCharset.displayName()); charsetLabel.setToolTipText(tooltip); charsetLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false)); final IDialogSettings dialogSettings = getDialogSettings(); m_charsetViewer = ShapeCharsetUI.createCharsetViewer(parent, dialogSettings); m_charsetViewer.addSelectionChangedListener(new ISelectionChangedListener() { @Override public void selectionChanged(final SelectionChangedEvent event) { updateMessage(); } }); return m_charsetViewer.getControl(); } private void createFileChooser(final Composite panel) { m_fileChooserGroup = new FileChooserGroup(m_fileDelegate); m_fileChooserGroup.setDialogSettings(getDialogSettings()); m_fileChooserGroup.addFileChangedListener(new FileChangedListener() { @Override public void fileChanged(final File file) { updateMessage(); } }); m_fileChooserGroup.createControlsInGrid(panel); } protected void updateMessage() { final IMessageProvider message = validate(); if (message == null) setMessage(null); else setMessage(message.getMessage(), message.getMessageType()); } private IMessageProvider validate() { final IMessageProvider fileMessage = m_fileChooserGroup.validate(); if (fileMessage != null) return fileMessage; return null; } public Charset getCharset() { return m_charsetViewer.getCharset(); } public String getCoordinateSystem() { return m_crs; } public String getShapeFileBase() { final File file = m_fileChooserGroup.getFile(); final String path = file.getAbsolutePath(); if (path.toLowerCase().endsWith(".shp") || path.toLowerCase().endsWith(".dbf")) //$NON-NLS-1$ //$NON-NLS-2$ return FileUtilities.nameWithoutExtension(path); return path; } public boolean isWritePrj() { return m_writePrj; } }