/*

  * 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.component.jface;

 import java.util.ArrayList;

 import java.util.List;

 import org.eclipse.swt.widgets.Composite;

 import org.seasar.uruma.annotation.ComponentElement;

 import org.seasar.uruma.component.CommonAttributes;

 import org.seasar.uruma.component.LayoutDataInfo;

 import org.seasar.uruma.component.LayoutInfo;

 import org.seasar.uruma.component.UIComponent;

 import org.seasar.uruma.component.UICompositeComponent;

 import org.seasar.uruma.component.UIElement;

 import org.seasar.uruma.component.UIElementVisitor;

 import org.seasar.uruma.context.PartContext;

 import org.seasar.uruma.context.WidgetHandle;

 import org.seasar.uruma.context.WindowContext;

 /**

  * {@link Composite} に対応するコンポーネントです。<br />

  * 

  * @author y-komori

  */

 @ComponentElement

 public class CompositeComponent extends ControlComponent implements

         UICompositeComponent {

     private LayoutInfo<?> layoutInfo;

     private LayoutDataInfo childLayoutDataInfo;

     private CommonAttributes commonAttributes;

     private List<UIElement> children = new ArrayList<UIElement>();

     /*

      * @see org.seasar.uruma.component.UICompositeComponent#getLayoutInfo()

      */

     public LayoutInfo<?> getLayoutInfo() {

         return this.layoutInfo;

     }

     /*

      * @see org.seasar.uruma.component.UICompositeComponent#setLayoutInfo(org.seasar.uruma.component.LayoutInfo)

      */

     public void setLayoutInfo(final LayoutInfo<?> layoutInfo) {

         this.layoutInfo = layoutInfo;

     }

     /**

      * 子コンポーネントの {@link LayoutDataInfo} を取得します。<br />

      * 

      * @return 子コンポーネントの {@link LayoutDataInfo}

      */

     public LayoutDataInfo getChildLayoutDataInfo() {

         return this.childLayoutDataInfo;

     }

     /**

      * 子コンポーネントの {@link LayoutDataInfo} を設定します。<br />

      * 

      * @param childLayoutDataInfo

      *            子コンポーネントの {@link LayoutDataInfo}

      */

     public void setChildLayoutDataInfo(final LayoutDataInfo childLayoutDataInfo) {

         this.childLayoutDataInfo = childLayoutDataInfo;

     }

     /*

      * @see org.seasar.uruma.component.UICompositeComponent#getCommonAttributes()

      */

     public CommonAttributes getCommonAttributes() {

         return commonAttributes;

     }

     /*

      * @see org.seasar.uruma.component.UICompositeComponent#setCommonAttributes(org.seasar.uruma.component.CommonAttributes)

      */

     public void setCommonAttributes(final CommonAttributes commonAttributes) {

         this.commonAttributes = commonAttributes;

     }

     /*

      * @see org.seasar.uruma.component.UIElementContainer#addChild(org.seasar.uruma.component.UIElement)

      */

     public void addChild(final UIElement child) {

         this.children.add(child);

         if (child instanceof UIComponent) {

             ((UIComponent) child).setParent(this);

         }

     }

     /*

      * @see org.seasar.uruma.component.UIElementContainer#getChildren()

      */

     public List<UIElement> getChildren() {

         return children;

     }

     /*

      * @see org.seasar.uruma.component.jface.AbstractUIComponent#doPreRender(org.seasar.uruma.context.WidgetHandle,

      *      org.seasar.uruma.context.WindowContext)

      */

     @Override

     protected void doPreRender(final WidgetHandle parent,

             final WindowContext context) {

         preRenderChild(context.getWidgetHandle(getId()), context);

     }

     /*

      * @see org.seasar.uruma.component.jface.AbstractUIComponent#doRender(org.seasar.uruma.context.WidgetHandle,

      *      org.seasar.uruma.context.PartContext)

      */

     @Override

     protected void doRender(final WidgetHandle parent, final PartContext context) {

         renderChild(context.getWidgetHandle(getId()), context);

     }

     /*

      * @see org.seasar.uruma.component.base.AbstractUIElement#accept(org.seasar.uruma.component.UIElementVisitor)

      */

     @Override

     public void accept(final UIElementVisitor visitor) {

         visitor.visit(this);

     }

     /**

      * 子コンポーネントのプリレンダリングを行います。<br />

      * 

      * @param parent

      *            親 {@link WidgetHandle}

      * @param context

      *            {@link WindowContext} オブジェクト

      */

     protected void preRenderChild(final WidgetHandle parent,

             final WindowContext context) {

         for (UIElement child : children) {

             if (child instanceof UIComponent) {

                 ((UIComponent) child).preRender(parent, context);

             }

         }

     }

     /**

      * 子コンポーネントのレンダリングを行います。<br />

      * 

      * @param parent

      *            親 {@link WidgetHandle}

      * @param context

      *            {@link PartContext} オブジェクト

      */

     protected void renderChild(final WidgetHandle parent,

             final PartContext context) {

         for (UIElement child : children) {

             if (child instanceof UIComponent) {

                 ((UIComponent) child).render(parent, context);

             }

         }

     }

 }