palettefactory.java

GEF初学者可以用来对照的小例子

/*
 * Created on 2005-1-25
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package com.example.tools;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.gef.palette.CombinedTemplateCreationEntry;
import org.eclipse.gef.palette.ConnectionCreationToolEntry;
import org.eclipse.gef.palette.PaletteContainer;
import org.eclipse.gef.palette.PaletteDrawer;
import org.eclipse.gef.palette.PaletteGroup;
import org.eclipse.gef.palette.PaletteRoot;
import org.eclipse.gef.palette.SelectionToolEntry;
import org.eclipse.gef.palette.ToolEntry;
import org.eclipse.gef.requests.SimpleFactory;

import com.example.model.Node;

/**
 * @author zhanghao
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class PaletteFactory {
    public static PaletteRoot createPalette() {
        PaletteRoot paletteRoot = new PaletteRoot();
        paletteRoot.addAll(createCategories(paletteRoot));
        return paletteRoot;
    }

    private static List createCategories(PaletteRoot root) {
        List categories = new ArrayList();

        categories.add(createControlGroup(root));
        categories.add(createComponentsDrawer());

        return categories;
    }

    private static PaletteContainer createControlGroup(PaletteRoot root) {
        PaletteGroup controlGroup = new PaletteGroup("Control Group");

        List entries = new ArrayList();
        ToolEntry tool = new SelectionToolEntry();
        entries.add(tool);
        root.setDefaultEntry(tool);

        tool = new ConnectionCreationToolEntry("Connection", "Create a connection", null, null, null);
        entries.add(tool);

        controlGroup.addAll(entries);
        return controlGroup;
    }

    private static PaletteContainer createComponentsDrawer() {

        PaletteDrawer drawer = new PaletteDrawer("Components");

        List entries = new ArrayList();
        ToolEntry tool = new CombinedTemplateCreationEntry("Node", "Create a new Node", Node.class, new SimpleFactory(
                Node.class), null, null);
        entries.add(tool);

        drawer.addAll(entries);
        return drawer;
    }
}