eu.hydrologis.jgrass.formeditor.OpenFormEditorAction.java Source code

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Here is the source code for eu.hydrologis.jgrass.formeditor.OpenFormEditorAction.java

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/*
 * JGrass - Free Open Source Java GIS http://www.jgrass.org 
 * (C) HydroloGIS - www.hydrologis.com 
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package eu.hydrologis.jgrass.formeditor;

import java.io.File;

import net.refractions.udig.catalog.ID;
import net.refractions.udig.catalog.IGeoResource;
import net.refractions.udig.project.ILayer;
import net.refractions.udig.project.IMap;
import net.refractions.udig.project.IStyleBlackboard;
import net.refractions.udig.project.ui.ApplicationGIS;

import org.apache.commons.io.FilenameUtils;
import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.ide.FileStoreEditorInput;
import org.geotools.data.FeatureSource;

/**
 * @author Andrea Antonello (www.hydrologis.com)
 *
 */
public class OpenFormEditorAction implements IWorkbenchWindowActionDelegate {

    private IWorkbenchWindow window;

    public void dispose() {
    }

    public void init(IWorkbenchWindow window) {
        this.window = window;
    }

    public void run(IAction action) {

        Display.getDefault().asyncExec(new Runnable() {

            public void run() {

                try {

                    IMap activeMap = ApplicationGIS.getActiveMap();
                    ILayer selectedLayer = null;
                    if (activeMap != null) {
                        selectedLayer = activeMap.getEditManager().getSelectedLayer();
                    } else {
                        MessageDialog.openError(window.getShell(), "ERROR",
                                "To use the form editor you need to select a feature layer to work on.");
                        return;
                    }
                    if (selectedLayer == null || !selectedLayer.hasResource(FeatureSource.class)) {
                        MessageDialog.openError(window.getShell(), "ERROR",
                                "To use the form editor you need to select a feature layer to work on.");
                        return;
                    }

                    IGeoResource geoResource = selectedLayer.getGeoResource();
                    ID id = geoResource.getID();
                    boolean isFile = id.isFile();
                    if (isFile) {
                        File f = id.toFile();
                        String baseName = FilenameUtils.getBaseName(f.getName());
                        File newF = new File(f.getParentFile(), baseName + ".form");
                        if (!newF.exists()) {
                            newF.createNewFile();
                        }

                        openEditor(newF);

                        return;
                    }
                    /*
                     * try to see if we can find one in the bboard for this layer
                     */
                    IStyleBlackboard blackboard = selectedLayer.getStyleBlackboard();
                    String path = blackboard.getString(FormEditor.ID);
                    if (path != null) {
                        final File f = new File(path);
                        openEditor(f);
                        return;
                    }
                    /*
                     * it is not file based or no project/map is there. Just ask 
                     * for a file on which to save.
                     */
                    FileDialog fileDialog = new FileDialog(window.getShell(), SWT.SAVE);
                    fileDialog.setText("Please select the file to which to save the form.");
                    fileDialog.setFilterExtensions(new String[] { "*.form" });
                    path = fileDialog.open();
                    if (path == null || path.length() < 1) {
                        return;
                    }

                    final File f = new File(path);
                    openEditor(f);
                    // the path will live in the bboard, if not as a sidecar file
                    blackboard.putString(FormEditor.ID, path);

                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

        });

    }

    private void openEditor(File newF) throws PartInitException {
        final IPath ipath = new Path(newF.getAbsolutePath());
        IFileStore fileLocation = EFS.getLocalFileSystem().getStore(ipath);
        FileStoreEditorInput fileStoreEditorInput = new FileStoreEditorInput(fileLocation);
        IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
        page.openEditor(fileStoreEditorInput, FormEditor.ID);

        PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
                .showView("org.eclipse.ui.views.PropertySheet");
    }

    public void selectionChanged(IAction action, ISelection selection) {
        // TODO Auto-generated method stub

    }

}