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/*************************************************************************************
Extended WPF Toolkit
Copyright (C) 2007-2013 Xceed Software Inc.
This program is provided to you under the terms of the Microsoft Public
License (Ms-PL) as published at http://wpftoolkit.codeplex.com/license
For more features, controls, and fast professional support,
pick up the Plus Edition at http://xceed.com/wpf_toolkit
Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids
***********************************************************************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Markup;
namespace Xceed.Wpf.AvalonDock.Layout
{
[ContentProperty( "Children" )]
[Serializable]
public class LayoutDocumentPane : LayoutPositionableGroup<LayoutContent>, ILayoutDocumentPane, ILayoutPositionableElement, ILayoutContentSelector, ILayoutPaneSerializable
{
#region Constructors
public LayoutDocumentPane()
{
}
public LayoutDocumentPane( LayoutContent firstChild )
{
this.Children.Add( firstChild );
}
#endregion
#region Properties
#region ShowHeader
private bool _showHeader = true;
public bool ShowHeader
{
get
{
return _showHeader;
}
set
{
if( value != _showHeader )
{
_showHeader = value;
RaisePropertyChanged( "ShowHeader" );
}
}
}
#endregion
#region SelectedContentIndex
private int _selectedIndex = -1;
public int SelectedContentIndex
{
get
{
return _selectedIndex;
}
set
{
if( value < 0 ||
value >= Children.Count )
value = -1;
if( _selectedIndex != value )
{
RaisePropertyChanging( "SelectedContentIndex" );
RaisePropertyChanging( "SelectedContent" );
if( _selectedIndex >= 0 &&
_selectedIndex < Children.Count )
Children[ _selectedIndex ].IsSelected = false;
_selectedIndex = value;
if( _selectedIndex >= 0 &&
_selectedIndex < Children.Count )
Children[ _selectedIndex ].IsSelected = true;
RaisePropertyChanged( "SelectedContentIndex" );
RaisePropertyChanged( "SelectedContent" );
}
}
}
#endregion
#region SelectedContent
public LayoutContent SelectedContent
{
get
{
return _selectedIndex == -1 ? null : Children[ _selectedIndex ];
}
}
#endregion
#region ChildrenSorted
public IEnumerable<LayoutContent> ChildrenSorted
{
get
{
var listSorted = this.Children.ToList();
listSorted.Sort();
return listSorted;
}
}
#endregion
#endregion
#region Overrides
protected override bool GetVisibility()
{
if( this.Parent is LayoutDocumentPaneGroup )
return ( this.ChildrenCount > 0 ) && this.Children.Any( c => ( c is LayoutDocument && ( ( LayoutDocument )c ).IsVisible ) || ( c is LayoutAnchorable ) );
return true;
}
protected override void ChildMoved( int oldIndex, int newIndex )
{
if( _selectedIndex == oldIndex )
{
RaisePropertyChanging( "SelectedContentIndex" );
_selectedIndex = newIndex;
RaisePropertyChanged( "SelectedContentIndex" );
}
base.ChildMoved( oldIndex, newIndex );
}
protected override void OnChildrenCollectionChanged()
{
if( this.SelectedContentIndex >= this.ChildrenCount )
this.SelectedContentIndex = this.Children.Count - 1;
if( this.SelectedContentIndex == -1 && this.ChildrenCount > 0 )
{
if( this.Root == null )
{
this.SetNextSelectedIndex();
}
else
{
var childrenToSelect = this.Children.OrderByDescending( c => c.LastActivationTimeStamp.GetValueOrDefault() ).First();
this.SelectedContentIndex = this.Children.IndexOf( childrenToSelect );
childrenToSelect.IsActive = true;
}
}
base.OnChildrenCollectionChanged();
RaisePropertyChanged( "ChildrenSorted" );
}
protected override void OnIsVisibleChanged()
{
this.UpdateParentVisibility();
base.OnIsVisibleChanged();
}
public override void WriteXml( System.Xml.XmlWriter writer )
{
if( _id != null )
writer.WriteAttributeString( "Id", _id );
if( !_showHeader )
writer.WriteAttributeString( "ShowHeader", _showHeader.ToString() );
base.WriteXml( writer );
}
public override void ReadXml( System.Xml.XmlReader reader )
{
if( reader.MoveToAttribute( "Id" ) )
_id = reader.Value;
if( reader.MoveToAttribute( "ShowHeader" ) )
_showHeader = bool.Parse( reader.Value );
base.ReadXml( reader );
}
#if TRACE
public override void ConsoleDump(int tab)
{
System.Diagnostics.Trace.Write( new string( ' ', tab * 4 ) );
System.Diagnostics.Trace.WriteLine( "DocumentPane()" );
foreach (LayoutElement child in Children)
child.ConsoleDump(tab + 1);
}
#endif
#endregion
#region Public Methods
public int IndexOf( LayoutContent content )
{
return Children.IndexOf( content );
}
#endregion
#region Internal Methods
internal void SetNextSelectedIndex()
{
this.SelectedContentIndex = -1;
for( int i = 0; i < this.Children.Count; ++i )
{
if( this.Children[ i ].IsEnabled )
{
this.SelectedContentIndex = i;
return;
}
}
}
#endregion
#region Private Methods
private void UpdateParentVisibility()
{
var parentPane = this.Parent as ILayoutElementWithVisibility;
if( parentPane != null )
parentPane.ComputeVisibility();
}
#endregion
#region ILayoutPaneSerializable Interface
string _id;
string ILayoutPaneSerializable.Id
{
get
{
return _id;
}
set
{
_id = value;
}
}
#endregion
}
}
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