/*

  * 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.window.Window;

 import org.eclipse.swt.SWT;

 import org.eclipse.swt.graphics.Image;

 import org.eclipse.swt.widgets.Button;

 import org.eclipse.swt.widgets.Composite;

 import org.eclipse.swt.widgets.Control;

 import org.eclipse.swt.widgets.Display;

 import org.eclipse.swt.widgets.Shell;

 import org.seasar.eclipse.common.util.GeometryUtil;

 import org.seasar.eclipse.common.util.ImageManager;

 import org.seasar.framework.util.StringUtil;

 import org.seasar.uruma.component.UIComponent;

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

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

 import org.seasar.uruma.context.PartContext;

 import org.seasar.uruma.context.WidgetHandle;

 import org.seasar.uruma.core.UrumaConstants;

 import org.seasar.uruma.util.PathUtil;

 /**

  * {@link Window} のレンダリングを行うためのクラスです。<br />

  * 

  * @author y-komori

  */

 public class WindowRenderer extends

         AbstractCompositeRenderer<WindowComponent, Composite> {

     /**

      * {@link Shell} のスタイルを返します。<br />

      * 

      * @param uiComponent

      *            {@link WindowComponent} オブジェクト

      * @return スタイル値

      */

     public int getShellStyle(final WindowComponent uiComponent) {

         return getStyle(uiComponent);

     }

     /*

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

      *      org.seasar.uruma.context.WidgetHandle,

      *      org.seasar.uruma.context.PartContext)

      */

     @Override

     public WidgetHandle render(final UIComponent uiComponent,

             final WidgetHandle parent, final PartContext context) {

         Shell shell = parent.<Shell> getCastWidget();

         configureShell((WindowComponent) uiComponent, shell);

         return super.render(uiComponent, parent, context);

     }

     /*

      * @see org.seasar.uruma.renderer.impl.AbstractWidgetRenderer#doRenderAfter(org.eclipse.swt.widgets.Widget,

      *      org.seasar.uruma.component.UIComponent,

      *      org.seasar.uruma.context.WidgetHandle,

      *      org.seasar.uruma.context.PartContext)

      */

     @Override

     protected void doRenderAfter(final Composite widget,

             final WindowComponent uiComponent, final WidgetHandle parent,

             final PartContext context) {

         setDefaultButton(uiComponent, context);

         setDefaultFocus(uiComponent, context);

     }

     protected void configureShell(final WindowComponent window,

             final Shell shell) {

         // タイトルの設定

         if (window.title != null) {

             shell.setText(window.title);

         }

         // ウィンドウサイズの設定

         String width = window.width;

         String height = window.height;

         if ((width != null) && (height != null)) {

             shell.setSize(calcWidth(width), calcHeight(height));

             shell.setLocation(calcX(window), calcY(window));

         }

         // 最小ウィンドウサイズの設定

         setMinimumSize(window, shell);

         // アイコンの設定

         String img = window.image;

         if (!StringUtil.isEmpty(img)) {

             Image image = ImageManager.getImage(img);

             if (image == null) {

                 String path = PathUtil.createPath(window.getBasePath(), img);

                 image = ImageManager.loadImage(path);

             }

             shell.setImage(image);

         }

     }

     protected int calcWidth(final String width) {

         return GeometryUtil.calcSize(width, Display.getCurrent()

                 .getClientArea().width);

     }

     protected int calcHeight(final String height) {

         return GeometryUtil.calcSize(height, Display.getCurrent()

                 .getClientArea().height);

     }

     protected int calcX(final WindowComponent window) {

         return GeometryUtil.calcPosition(window.x, Display.getCurrent()

                 .getClientArea().width, calcWidth(window.width));

     }

     protected int calcY(final WindowComponent window) {

         return GeometryUtil.calcPosition(window.y, Display.getCurrent()

                 .getClientArea().height, calcHeight(window.height));

     }

     protected void setDefaultButton(final WindowComponent windowComponent,

             final PartContext context) {

         WidgetHandle defaultButtonHandle = context

                 .getWidgetHandle(windowComponent.defaultButtonId);

         if (defaultButtonHandle != null) {

             if (Button.class.isAssignableFrom(defaultButtonHandle

                     .getWidgetClass())) {

                 Button defaultButton = defaultButtonHandle

                         .<Button> getCastWidget();

                 WidgetHandle handle = context

                         .getWidgetHandle(UrumaConstants.SHELL_CID);

                 Shell shell = handle.<Shell> getCastWidget();

                 if (shell != null) {

                     shell.setDefaultButton(defaultButton);

                     defaultButton.forceFocus();

                 }

             }

         }

     }

     protected void setDefaultFocus(final WindowComponent windowComponent,

             final PartContext context) {

         WidgetHandle defaultFocusHandle = context

                 .getWidgetHandle(windowComponent.defaultButtonId);

         if (defaultFocusHandle != null) {

             if (Control.class.isAssignableFrom(defaultFocusHandle

                     .getWidgetClass())) {

                 Control control = defaultFocusHandle.<Control> getCastWidget();

                 control.setFocus();

             }

         }

     }

     protected void setMinimumSize(final WindowComponent windowComponent,

             final Shell shell) {

         String minWidth = windowComponent.minimumWidth;

         String minHeight = windowComponent.minimumHeight;

         if ((minWidth != null) && (minHeight != null)) {

             shell.setMinimumSize(calcWidth(minWidth), calcHeight(minHeight));

         }

     }

     /*

      * @see org.seasar.uruma.renderer.impl.AbstractWidgetRenderer#getWidgetType()

      */

     @Override

     protected Class<Composite> getWidgetType() {

         return Composite.class;

     }

     /*

      * @see org.seasar.uruma.renderer.impl.AbstractRenderer#getDefaultStyle()

      */

     @Override

     protected int getDefaultStyle() {

         return SWT.SHELL_TRIM;

     }

     /*

      * @see org.seasar.uruma.renderer.impl.AbstractCompositeRenderer#doRenderComposite(org.seasar.uruma.component.jface.CompositeComponent,

      *      org.eclipse.swt.widgets.Composite)

      */

     @Override

     protected void doRenderComposite(final WindowComponent compositeComponent,

             final Composite composite) {

         // Do nothing.

     }

     /*

      * @see org.seasar.uruma.renderer.impl.AbstractControlRenderer#setLocation(org.seasar.uruma.component.jface.ControlComponent,

      *      org.eclipse.swt.widgets.Control)

      */

     @Override

     protected void setLocation(final ControlComponent controlComponent,

             final Control control) {

         // Do nothing.

     }

     /*

      * @see org.seasar.uruma.renderer.impl.AbstractControlRenderer#setSize(org.seasar.uruma.component.jface.ControlComponent,

      *      org.eclipse.swt.widgets.Control)

      */

     @Override

     protected void setSize(final ControlComponent controlComponent,

             final Control control) {

         // Do nothing.

     }

     /*

      * @see org.seasar.uruma.renderer.impl.AbstractControlRenderer#setMenu(org.seasar.uruma.component.jface.ControlComponent,

      *      org.eclipse.swt.widgets.Control)

      */

     @Override

     protected void setMenu(final ControlComponent controlComponent,

             final Control control) {

         // Do nothing.

     }

 }