/*

  * Copyright 2004-2008 the Seasar Foundation and the Others.

  *

  * 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.

  */

 package org.seasar.uruma.renderer.impl;

 import org.eclipse.jface.action.MenuManager;

 import org.eclipse.swt.widgets.Menu;

 import org.seasar.framework.util.StringUtil;

 import org.seasar.uruma.component.UIComponent;

 import org.seasar.uruma.component.jface.MenuComponent;

 import org.seasar.uruma.context.PartContext;

 import org.seasar.uruma.context.WidgetHandle;

 import org.seasar.uruma.context.WindowContext;

 import org.seasar.uruma.renderer.RendererSupportUtil;

 /**

  * {@link MenuManager} のレンダリングを行うクラスです。<br />

  * 

  * @author y-komori

  */

 public class MenuManagerRenderer extends AbstractRenderer {

     /*

      * @see org.seasar.uruma.renderer.impl.AbstractRenderer#preRender(org.seasar.uruma.component.UIComponent,

      *      org.seasar.uruma.context.WidgetHandle,

      *      org.seasar.uruma.context.WindowContext)

      */

     @Override

     public WidgetHandle preRender(final UIComponent uiComponent,

             final WidgetHandle parent, final WindowContext context) {

         if (parent == null) {

             return createWidgetHandle(uiComponent, createMenuManager());

         } else if (parent.getUiComponent() instanceof MenuComponent) {

             MenuComponent menuComponent = (MenuComponent) uiComponent;

             MenuManager menuManager = new MenuManager(menuComponent.text);

             setVisivle(menuComponent, menuManager);

             MenuManager parentManager = parent.<MenuManager> getCastWidget();

             parentManager.add(menuManager);

             WidgetHandle handle = createWidgetHandle(uiComponent, menuManager);

             return handle;

         }

         return null;

     }

     /**

      * メニューのレンダリングを行います。<br />

      * 

      * @param menuComponent

      *            {@link MenuComponent} オブジェクト

      * @param menu

      *            {@link Menu} オブジェクト

      */

     public void renderMenu(final MenuComponent menuComponent, final Menu menu) {

         String x = menuComponent.x;

         String y = menuComponent.y;

         if (!StringUtil.isEmpty(x) && !StringUtil.isEmpty(y)) {

             menu.setLocation(Integer.valueOf(x), Integer.valueOf(y));

         }

     }

     /*

      * @see org.seasar.uruma.renderer.Renderer#render(org.seasar.uruma.component.UIComponent,

      *      org.seasar.uruma.context.WidgetHandle,

      *      org.seasar.uruma.context.PartContext)

      */

     public WidgetHandle render(final UIComponent uiComponent,

             final WidgetHandle parent, final PartContext context) {

         // Do nothing.

         return null;

     }

     /*

      * @see org.seasar.uruma.renderer.Renderer#renderAfter(org.seasar.uruma.context.WidgetHandle,

      *      org.seasar.uruma.component.UIComponent,

      *      org.seasar.uruma.context.WidgetHandle,

      *      org.seasar.uruma.context.PartContext)

      */

     public void renderAfter(final WidgetHandle widget,

             final UIComponent uiComponent, final WidgetHandle parent,

             final PartContext context) {

         // Do nothing.

     }

     protected void setVisivle(final MenuComponent menuComponent,

             final MenuManager menuManager) {

         String visible = menuComponent.visible;

         if (visible != null) {

             menuManager.setVisible(RendererSupportUtil.convertBoolean(visible));

         }

     }

     protected MenuManager createMenuManager() {

         return new MenuManager();

     }

 }