content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   * Lesser General Public License for more details.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.gwt.client.ui;
  
  import java.util.List;
  
  import com.google.gwt.core.client.GWT;
  import com.google.gwt.dom.client.Style;
  import com.google.gwt.uibinder.client.UiBinder;
  import com.google.gwt.uibinder.client.UiField;
  import com.google.gwt.user.client.ui.Composite;
  import com.google.gwt.user.client.ui.FlowPanel;
  import com.google.gwt.user.client.ui.Widget;
  
  /**
   * A panel containing two sub-panels next to each other , one for 'decorations' (check boxes, etc.) and one containing a main widget.<p>
   *
   * This widget does not calculate the width of the decoration panel automatically. You have to pass the appropriate width
   * as a parameter to the constructor.
   *
   * @since 8.0.0
   *
   */
  public class CmsSimpleDecoratedPanel extends Composite implements I_CmsTruncable {
  
      /**
       * @see com.google.gwt.uibinder.client.UiBinder
       */
      protected interface I_CmsSimpleDecoratedPanelUiBinder extends UiBinder<Widget, CmsSimpleDecoratedPanel> {
          // GWT interface, nothing to do here
      }
  
      /** The ui-binder instance for this class. */
      private static I_CmsSimpleDecoratedPanelUiBinder uiBinder = GWT.create(I_CmsSimpleDecoratedPanelUiBinder.class);
  
      /** The float panel. */
      @UiField
      protected FlowPanel m_decorationBox = new FlowPanel();
  
      /** The panel containing both the main and float panel. */
      @UiField
      protected FlowPanel m_panel = new FlowPanel();
  
      /** The main panel. */
      @UiField
      protected FlowPanel m_primary = new FlowPanel();
  
      /** The width of the decoration box. */
      private int m_decorationWidth;
  
      /**
       * Creates a new instance of this widget.<p>
       *
       * @param decorationWidth the width which the decoration box should have
       * @param mainWidget the main widget
       * @param decoration the list of decoration widgets (from left to right)
       */
      public CmsSimpleDecoratedPanel(int decorationWidth, Widget mainWidget, List<Widget> decoration) {
  
          initWidget(uiBinder.createAndBindUi(this));
          for (Widget widget : decoration) {
              m_decorationBox.add(widget);
          }
          if (mainWidget != null) {
              m_primary.add(mainWidget);
          }
          m_decorationWidth = decorationWidth;
          init();
      }
  
      /**
       * Adds a style name to the decoration box.<p>
       *
       * @param cssClass the CSS class to add
       */
      public void addDecorationBoxStyle(String cssClass) {
  
          m_decorationBox.addStyleName(cssClass);
      }
  
      /**
       * Returns the widget at the given position.<p>
       *
       * @param index the position
       *
       * @return  the widget at the given position
       */
      public Widget getWidget(int index) {
  
          return m_primary.getWidget(index);
      }
  
      /**
       * @see org.opencms.gwt.client.ui.I_CmsTruncable#truncate(java.lang.String, int)
       */
      public void truncate(String textMetricsPrefix, int widgetWidth) {
  
          int width = widgetWidth;
          width -= getDecorationWidth();
          for (Widget widget : m_primary) {
              if (widget instanceof I_CmsTruncable) {
                  ((I_CmsTruncable)widget).truncate(textMetricsPrefix, width);
              }
          }
      }
  
      /**
       * Returns the width of the decoration box.<p>
       *
       * @return the width of the decoration box
       */
      private int getDecorationWidth() {
  
          return m_decorationWidth;
      }
  
      /**
       * Internal helper method for initializing the layout of this widget.<p>
       */
      private void init() {
  
          int decorationWidth = getDecorationWidth();
          m_decorationBox.setWidth(decorationWidth + "px");
          m_primary.getElement().getStyle().setMarginLeft(decorationWidth, Style.Unit.PX);
      }
  
  }
  