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Viewing changes to src/AddIns/DisplayBindings/Data/ICSharpCode.Data.EDMDesigner.Core.UI/UserControls/ToolBoxExpander.cs

  • Committer: sk
  • Date: 2011-09-10 05:17:57 UTC
  • Revision ID: halega@halega.com-20110910051757-qfouz1llya9m6boy
4.1.0.7915 Release Candidate 1

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src/AddIns/DisplayBindings/Data/ICSharpCode.Data.EDMDesigner.Core.UI/UserControls/ToolBoxExpander.cs
 
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
 
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
 
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#region Usings
 
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using System.Linq;
 
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using System.Windows;
 
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using System.Windows.Controls;
 
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using ICSharpCode.Data.EDMDesigner.Core.UI.Helpers;
 
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#endregion
 
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namespace ICSharpCode.Data.EDMDesigner.Core.UI.UserControls
 
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{
 
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    public class ToolBoxExpander : Expander
 
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    {
 
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        static ToolBoxExpander()
 
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        {
 
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            ResourceDictionaryLoader.LoadResourceDictionary("/UserControls/ToolBoxExpanderResourceDictionary.xaml");
 
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        }
 
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        private RowDefinition _rowDefinition;
 
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        private GridLength? _rowHeight;
 
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        private RowDefinition RowDefinition
 
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        {
 
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            get
 
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            {
 
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                if (_rowDefinition == null)
 
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                {
 
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                    FrameworkElement parent = this;
 
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                    while ((parent = parent.Parent as FrameworkElement) != null)
 
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                    {
 
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                        var grid = parent as Grid;
 
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                        if (grid != null && grid.RowDefinitions.Any())
 
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                        {
 
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                            _rowDefinition = grid.RowDefinitions[Grid.GetRow(this)];
 
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                            break;
 
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                        }
 
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                    }
 
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                }
 
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                return _rowDefinition;
 
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            }
 
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        }
 
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        protected override void OnCollapsed()
 
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        {
 
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            _rowHeight = RowDefinition.Height;
 
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            RowDefinition.Height = GridLength.Auto;
 
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            base.OnCollapsed();
 
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        }
 
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        protected override void OnExpanded()
 
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        {
 
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            base.OnExpanded();
 
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            if (_rowHeight.HasValue)
 
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                RowDefinition.Height = _rowHeight.Value;
 
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        }
 
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    }
 
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}