package org.drools.eclipse.flow.ruleflow.editor;

/*

 * Copyright 2005 JBoss Inc

 * 

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 * 

 *      http://www.apache.org/licenses/LICENSE-2.0

 * 

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



import java.util.ArrayList;

import java.util.List;



import org.drools.eclipse.DroolsEclipsePlugin;

import org.drools.eclipse.flow.ruleflow.skin.SkinManager;

import org.drools.eclipse.flow.ruleflow.skin.SkinProvider;

import org.drools.eclipse.preferences.IDroolsConstants;

import org.eclipse.gef.palette.MarqueeToolEntry;

import org.eclipse.gef.palette.PaletteContainer;

import org.eclipse.gef.palette.PaletteDrawer;

import org.eclipse.gef.palette.PaletteEntry;

import org.eclipse.gef.palette.PaletteGroup;

import org.eclipse.gef.palette.PaletteRoot;

import org.eclipse.gef.palette.SelectionToolEntry;

import org.eclipse.gef.palette.ToolEntry;



/**

 * Factory for creating a RuleFlow palette.

 * 

 * @author <a href="mailto:kris_verlaenen@hotmail.com">Kris Verlaenen</a>

 */

public class RuleFlowPaletteFactory {



    public static PaletteRoot createPalette() {

        PaletteRoot flowPalette = new PaletteRoot();

        flowPalette.addAll(createCategories(flowPalette));

        return flowPalette;

    }

    

    private static List<PaletteEntry> createCategories(PaletteRoot root) {

        List<PaletteEntry> categories = new ArrayList<PaletteEntry>();

        categories.add(createControlGroup(root));

        String skin = DroolsEclipsePlugin.getDefault().getPreferenceStore().getString(IDroolsConstants.SKIN);

        SkinProvider skinProvider = SkinManager.getInstance().getSkinProvider(skin);

        categories.add(skinProvider.createComponentsDrawer());

        categories.add(createWorkNodesDrawer());

        return categories;

    }

    

    private static PaletteContainer createWorkNodesDrawer() {



        PaletteDrawer drawer = new PaletteDrawer("Work Items", null);



//        List entries = new ArrayList();

//

//        for (Iterator iterator = WorkItemDefinitions.getWorkDefinitions().iterator(); iterator.hasNext(); ) {

//            final WorkDefinition workDefinition = (WorkDefinition) iterator.next();

//            final String label;

//            String description = workDefinition.getName();

//            String icon = null;

//            if (workDefinition instanceof WorkDefinitionExtension) {

//                WorkDefinitionExtension extension = (WorkDefinitionExtension) workDefinition;

//                label = extension.getDisplayName();

//                description = extension.getExplanationText();

//                icon = extension.getIcon();

//            } else {

//                label = workDefinition.getName();

//            }

//            

//            CombinedTemplateCreationEntry combined = new CombinedTemplateCreationEntry(

//                label,

//                description,

//                WorkItemWrapper.class,

//                new SimpleFactory(WorkItemWrapper.class) {

//                    public Object getNewObject() {

//                        WorkItemWrapper taskWrapper = (WorkItemWrapper) super.getNewObject();

//                        taskWrapper.setName(label);

//                        taskWrapper.getWorkItemNode().setName(label);

//                        taskWrapper.getWorkItemNode().setWork(new WorkImpl());

//                        taskWrapper.getWorkItemNode().getWork().setName(workDefinition.getName());

//                        return taskWrapper;

//                    }

//                },

//                ImageDescriptor.createFromURL(DroolsEclipsePlugin.getDefault().getBundle().getEntry(icon == null? "icons/action.gif" : icon)), 

//                ImageDescriptor.createFromURL(DroolsEclipsePlugin.getDefault().getBundle().getEntry(icon == null? "icons/action.gif" : icon))

//            );

//            entries.add(combined);

//        }

//                                        

//        drawer.addAll(entries);

        return drawer;

    }

    

    private static PaletteContainer createControlGroup(PaletteRoot root) {

        PaletteGroup controlGroup = new PaletteGroup("Control Group");



        List<PaletteEntry> entries = new ArrayList<PaletteEntry>();



        ToolEntry tool = new SelectionToolEntry();

        entries.add(tool);

        root.setDefaultEntry(tool);



        tool = new MarqueeToolEntry();

        entries.add(tool);

        

        String skin = DroolsEclipsePlugin.getDefault().getPreferenceStore().getString(IDroolsConstants.SKIN);

        SkinProvider skinProvider = SkinManager.getInstance().getSkinProvider(skin);

        entries.add(skinProvider.createConnectionEntry());

        

        controlGroup.addAll(entries);

        return controlGroup;

    }

}