/*******************************************************************************
 * Copyright (c) 2009 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 175735)
 *     Matthew Hall - bugs 262407, 260337
 ******************************************************************************/

module org.eclipse.jface.examples.databinding.snippets.Snippet029TreeViewerMultiListProperty;

import java.lang.all;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.property.list.IListProperty;
import org.eclipse.core.databinding.property.list.MultiListProperty;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.databinding.viewers.ObservableListTreeContentProvider;
import org.eclipse.jface.databinding.viewers.ObservableMapLabelProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

/**
 * @since 3.2
 * 
 */
public class Snippet029TreeViewerMultiListProperty {
    protected Shell shell;
    private TreeViewer viewer;

    /**
     * Launch the application
     * 
     * @param args
     */
    public static void main(String[] args) {
        try {
            Snippet029TreeViewerMultiListProperty window = new Snippet029TreeViewerMultiListProperty();
            window.open();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * Open the window
     */
    public void open() {
        final Display display = Display.getDefault();
        Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
            public void run() {
                createContents();
                shell.open();
                shell.layout();
                while (!shell.isDisposed()) {
                    if (!display.readAndDispatch())
                        display.sleep();
                }
            }
        });
    }

    protected void createContents() {
        shell = new Shell();
        shell.setSize(509, 375);
        shell.setText("Snippet028DuplexingObservableValue.java");
        final GridLayout gridLayout = new GridLayout();
        gridLayout.makeColumnsEqualWidth = true;
        gridLayout.numColumns = 4;
        shell.setLayout(new FillLayout());

        viewer = new TreeViewer(shell, SWT.FULL_SELECTION | SWT.MULTI
                | SWT.BORDER);

        bindUI();
    }

    // Minimal JavaBeans support
    public static abstract class AbstractModelObject {
        private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(
                this);

        public void addPropertyChangeListener(PropertyChangeListener listener) {
            propertyChangeSupport.addPropertyChangeListener(listener);
        }

        public void addPropertyChangeListener(String propertyName,
                PropertyChangeListener listener) {
            propertyChangeSupport.addPropertyChangeListener(propertyName,
                    listener);
        }

        public void removePropertyChangeListener(PropertyChangeListener listener) {
            propertyChangeSupport.removePropertyChangeListener(listener);
        }

        public void removePropertyChangeListener(String propertyName,
                PropertyChangeListener listener) {
            propertyChangeSupport.removePropertyChangeListener(propertyName,
                    listener);
        }

        protected void firePropertyChange(String propertyName, Object oldValue,
                Object newValue) {
            propertyChangeSupport.firePropertyChange(propertyName, oldValue,
                    newValue);
        }
    }

    public static class Catalog extends AbstractModelObject {
        private String name;
        private List catalogs = new ArrayList();
        private List items = new ArrayList();

        public Catalog(String name) {
            this.name = name;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            firePropertyChange("name", this.name, this.name = name);
        }

        public List getCatalogs() {
            return catalogs;
        }

        public void setCatalogs(List catalogs) {
            firePropertyChange("catalogs", this.catalogs,
                    this.catalogs = catalogs);
        }

        public List getItems() {
            return items;
        }

        public void setItems(List items) {
            firePropertyChange("items", this.items, this.items = items);
        }
    }

    public static class CatalogItem extends AbstractModelObject {
        private String name;

        public CatalogItem(String name) {
            this.name = name;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            firePropertyChange("name", this.name, this.name = name);
        }
    }

    private void bindUI() {
        List items;

        Catalog fruits = new Catalog("Fruits");
        items = new ArrayList();
        items.add(new CatalogItem("Apple"));
        items.add(new CatalogItem("Orange"));
        fruits.setCatalogs(items);

        Catalog vegetables = new Catalog("Vegetables");
        items = new ArrayList();
        items.add(new CatalogItem("Peas"));
        items.add(new CatalogItem("Carrots"));
        items.add(new CatalogItem("Potatoes"));
        vegetables.setItems(items);

        Catalog foods = new Catalog("Foods");
        items = new ArrayList();
        items.add(fruits);
        items.add(vegetables);
        foods.setCatalogs(items);

        items = new ArrayList();
        items.add(new CatalogItem("Own Hand"));
        foods.setItems(items);

        Catalog catalog = new Catalog("Main Catalog");
        items = new ArrayList();
        items.add(foods);
        catalog.setCatalogs(items);

        IListProperty childrenProperty = new MultiListProperty(
                new IListProperty[] { BeanProperties.list("catalogs"),
                        BeanProperties.list("items") });

        ObservableListTreeContentProvider contentProvider = new ObservableListTreeContentProvider(
                childrenProperty.listFactory(), null);
        viewer.setContentProvider(contentProvider);

        ObservableMapLabelProvider labelProvider = new ObservableMapLabelProvider(
                BeanProperties.value("name").observeDetail(
                        contentProvider.getKnownElements())) {
            Image catalogImage = createCatalogImage();
            Image catalogItemImage = createCatalogItemImage();

            public Image getImage(Object element) {
                if (element instanceof Catalog)
                    return catalogImage;
                if (element instanceof CatalogItem)
                    return catalogItemImage;
                return super.getImage(element);
            }

            public void dispose() {
                catalogImage.dispose();
                catalogItemImage.dispose();
                super.dispose();
            }

            private Image createCatalogImage() {
                Display display = Display.getCurrent();
                Image catalogImage = new Image(display, 12, 12);
                GC gc = new GC(catalogImage);
                gc.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
                gc.fillArc(1, 1, 10, 10, 0, 360);
                gc.dispose();
                return catalogImage;
            }

            private Image createCatalogItemImage() {
                Display display = Display.getCurrent();
                Image catalogImage = new Image(display, 12, 12);
                GC gc = new GC(catalogImage);
                gc.setBackground(display.getSystemColor(SWT.COLOR_CYAN));
                gc.fillPolygon(new int[] { 1, 10, 5, 1, 6, 1, 10, 10, 1, 10 });
                gc.dispose();
                return catalogImage;
            }
        };
        viewer.setLabelProvider(labelProvider);

        viewer.setInput(catalog);
    }
}
void main( String[] args ){
    Snippet029TreeViewerMultiListProperty.main(args);
}