org.polymap.biotop.ui.AddValueArtAction.java Source code

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Here is the source code for org.polymap.biotop.ui.AddValueArtAction.java

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/* 
 * polymap.org
 * Copyright 2012, Polymap GmbH. All rights reserved.
 *
 * This 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 software 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.
 */
package org.polymap.biotop.ui;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.window.Window;

import org.eclipse.ui.PlatformUI;

import org.polymap.core.data.ui.featuretable.DefaultFeatureTableColumn;
import org.polymap.core.data.ui.featuretable.FeatureTableViewer;
import org.polymap.core.data.ui.featuretable.IFeatureTableElement;
import org.polymap.core.model.Entity;
import org.polymap.core.model.EntityType;
import org.polymap.core.model.EntityType.Property;
import org.polymap.core.workbench.PolymapWorkbench;

import org.polymap.rhei.data.entityfeature.CompositesFeatureContentProvider;
import org.polymap.rhei.data.entityfeature.PropertyDescriptorAdapter;

import org.polymap.biotop.BiotopPlugin;
import org.polymap.biotop.model.BiotopRepository;

/**
 * 
 *
 * @author <a href="http://www.polymap.de">Falko Brutigam</a>
 */
public abstract class AddValueArtAction<A extends Entity> extends Action implements ISelectionChangedListener {

    private static Log log = LogFactory.getLog(AddValueArtAction.class);

    private Class<A> artType;

    private Iterable<A> content;

    public AddValueArtAction(Class<A> artType, Iterable<A> content) {
        super("Hinzufgen");
        this.artType = artType;
        this.content = content;

        setToolTipText("Eintrag hinzufgen");
        setImageDescriptor(BiotopPlugin.imageDescriptorFromPlugin(BiotopPlugin.PLUGIN_ID, "icons/add.gif"));
        setEnabled(true);
    }

    public void selectionChanged(SelectionChangedEvent ev) {
    }

    protected abstract void execute(A element) throws Exception;

    public void run() {
        try {
            ArtTableDialog dialog = new ArtTableDialog();
            dialog.setBlockOnOpen(true);

            if (dialog.open() == Window.OK) {
                assert dialog.sel.length == 1 : "Selected: " + dialog.sel.length;
                final IFeatureTableElement sel = dialog.sel[0];
                execute(Iterables.find(content, new Predicate<A>() {
                    public boolean apply(A input) {
                        return input.id().equals(sel.fid());
                    }
                }));
            }
        } catch (Exception e) {
            PolymapWorkbench.handleError(BiotopPlugin.PLUGIN_ID, this, "Fehler beim ffnen Suchtabelle.", e);
        }
    }

    /**
     * 
     */
    class ArtTableDialog extends TitleAreaDialog {

        private FeatureTableViewer viewer;

        private IFeatureTableElement[] sel;

        public ArtTableDialog() {
            super(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell());
            setShellStyle(getShellStyle() | SWT.RESIZE);
        }

        protected Image getImage() {
            return getShell().getDisplay().getSystemImage(SWT.ICON_QUESTION);
        }

        protected Point getInitialSize() {
            return new Point(800, 600);
            //return super.getInitialSize();
        }

        protected Control createDialogArea(Composite parent) {
            Composite area = (Composite) super.createDialogArea(parent);

            setTitle("Auswhlen");
            setMessage("Whlen Sie die \"Art\" des neuen Eintrages.");

            viewer = new FeatureTableViewer(area, SWT.V_SCROLL | SWT.H_SCROLL);
            viewer.getTable().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

            // entity types
            final BiotopRepository repo = BiotopRepository.instance();
            final EntityType<A> type = repo.entityType(artType);

            // columns
            for (Property prop : type.getProperties()) {
                PropertyDescriptorAdapter adapter = new PropertyDescriptorAdapter(prop);
                viewer.addColumn(
                        new DefaultFeatureTableColumn(adapter).setHeader(StringUtils.capitalize(prop.getName())));

            }

            // model/content
            viewer.setContent(new CompositesFeatureContentProvider(content, type));
            viewer.setInput(content);

            // selection
            viewer.addSelectionChangedListener(new ISelectionChangedListener() {
                public void selectionChanged(SelectionChangedEvent ev) {
                    sel = viewer.getSelectedElements();
                    getButton(IDialogConstants.OK_ID).setEnabled(sel.length > 0);
                }
            });

            area.pack();
            return area;
        }

        protected void createButtonsForButtonBar(Composite parent) {
            super.createButtonsForButtonBar(parent);
            //createButton( parent, RESET_BUTTON, "Zurcksetzen", false );

            getButton(IDialogConstants.OK_ID).setEnabled(false);
        }

    }

}