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/*************************************************************************************
Toolkit for WPF
Copyright (C) 2007-2020 Xceed Software Inc.
This program is provided to you under the terms of the XCEED SOFTWARE, INC.
COMMUNITY LICENSE AGREEMENT (for non-commercial use) as published at
https://github.com/xceedsoftware/wpftoolkit/blob/master/license.md
For more features, controls, and fast professional support,
pick up the Plus Edition at https://xceed.com/xceed-toolkit-plus-for-wpf/
Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids
***********************************************************************************/
using System;
using System.Linq;
using System.Windows;
using System.Windows.Media;
using Xceed.Wpf.AvalonDock.Layout;
namespace Xceed.Wpf.AvalonDock.Controls
{
internal class DocumentPaneDropTarget : DropTarget<LayoutDocumentPaneControl>
{
#region Members
private LayoutDocumentPaneControl _targetPane;
private int _tabIndex = -1;
#endregion
#region Constructors
internal DocumentPaneDropTarget( LayoutDocumentPaneControl paneControl, Rect detectionRect, DropTargetType type )
: base( paneControl, detectionRect, type )
{
_targetPane = paneControl;
}
internal DocumentPaneDropTarget( LayoutDocumentPaneControl paneControl, Rect detectionRect, DropTargetType type, int tabIndex )
: base( paneControl, detectionRect, type )
{
_targetPane = paneControl;
_tabIndex = tabIndex;
}
#endregion
#region Overrides
protected override void Drop( LayoutDocumentFloatingWindow floatingWindow )
{
ILayoutDocumentPane targetModel = _targetPane.Model as ILayoutDocumentPane;
switch( Type )
{
case DropTargetType.DocumentPaneDockBottom:
#region DropTargetType.DocumentPaneDockBottom
{
var newLayoutDocumentPane = new LayoutDocumentPane( floatingWindow.RootDocument );
var targetPane = targetModel as ILayoutPositionableElement;
if( targetPane != null )
{
// Set the DockWidth of the targetPane and the newLayoutDocumentPane so they both use the same size.
if( targetPane.DockHeight.IsStar )
{
targetPane.DockHeight = new GridLength( targetPane.DockHeight.Value / 2d, GridUnitType.Star );
newLayoutDocumentPane.DockHeight = targetPane.DockHeight;
}
}
var parentModel = targetModel.Parent as LayoutDocumentPaneGroup;
if( parentModel == null )
{
var parentContainer = targetModel.Parent as ILayoutContainer;
var newParentModel = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Vertical };
parentContainer.ReplaceChild( targetModel, newParentModel );
newParentModel.Children.Add( targetModel as LayoutDocumentPane );
newParentModel.Children.Add( newLayoutDocumentPane );
}
else
{
var manager = parentModel.Root.Manager;
if( !manager.AllowMixedOrientation || parentModel.Orientation == System.Windows.Controls.Orientation.Vertical )
{
parentModel.Orientation = System.Windows.Controls.Orientation.Vertical;
int targetPaneIndex = parentModel.IndexOfChild( targetModel );
parentModel.Children.Insert( targetPaneIndex + 1, newLayoutDocumentPane );
}
else
{
LayoutDocumentPaneGroup newChildGroup = new LayoutDocumentPaneGroup();
newChildGroup.Orientation = System.Windows.Controls.Orientation.Vertical;
parentModel.ReplaceChild( targetModel, newChildGroup );
newChildGroup.Children.Add( targetModel );
newChildGroup.Children.Add( newLayoutDocumentPane );
}
}
}
break;
#endregion
case DropTargetType.DocumentPaneDockTop:
#region DropTargetType.DocumentPaneDockTop
{
var newLayoutDocumentPane = new LayoutDocumentPane( floatingWindow.RootDocument );
var targetPane = targetModel as ILayoutPositionableElement;
if( targetPane != null )
{
// Set the DockWidth of the targetPane and the newLayoutDocumentPane so they both use the same size.
if( targetPane.DockHeight.IsStar )
{
targetPane.DockHeight = new GridLength( targetPane.DockHeight.Value / 2d, GridUnitType.Star );
newLayoutDocumentPane.DockHeight = targetPane.DockHeight;
}
}
var parentModel = targetModel.Parent as LayoutDocumentPaneGroup;
if( parentModel == null )
{
var parentContainer = targetModel.Parent as ILayoutContainer;
var newParentModel = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Vertical };
parentContainer.ReplaceChild( targetModel, newParentModel );
newParentModel.Children.Add( targetModel as LayoutDocumentPane );
newParentModel.Children.Insert( 0, newLayoutDocumentPane );
}
else
{
var manager = parentModel.Root.Manager;
if( !manager.AllowMixedOrientation || parentModel.Orientation == System.Windows.Controls.Orientation.Vertical )
{
parentModel.Orientation = System.Windows.Controls.Orientation.Vertical;
int targetPaneIndex = parentModel.IndexOfChild( targetModel );
parentModel.Children.Insert( targetPaneIndex, newLayoutDocumentPane );
}
else
{
LayoutDocumentPaneGroup newChildGroup = new LayoutDocumentPaneGroup();
newChildGroup.Orientation = System.Windows.Controls.Orientation.Vertical;
parentModel.ReplaceChild( targetModel, newChildGroup );
newChildGroup.Children.Add( newLayoutDocumentPane );
newChildGroup.Children.Add( targetModel );
}
}
}
break;
#endregion
case DropTargetType.DocumentPaneDockLeft:
#region DropTargetType.DocumentPaneDockLeft
{
var newLayoutDocumentPane = new LayoutDocumentPane( floatingWindow.RootDocument );
var targetPane = targetModel as ILayoutPositionableElement;
if( targetPane != null )
{
// Set the DockWidth of the targetPane and the newLayoutDocumentPane so they both use the same size.
if( targetPane.DockWidth.IsStar )
{
targetPane.DockWidth = new GridLength( targetPane.DockWidth.Value / 2d, GridUnitType.Star );
newLayoutDocumentPane.DockWidth = targetPane.DockWidth;
}
}
var parentModel = targetModel.Parent as LayoutDocumentPaneGroup;
if( parentModel == null )
{
var parentContainer = targetModel.Parent as ILayoutContainer;
var newParentModel = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Horizontal };
parentContainer.ReplaceChild( targetModel, newParentModel );
newParentModel.Children.Add( targetModel );
newParentModel.Children.Insert( 0, newLayoutDocumentPane );
}
else
{
var manager = parentModel.Root.Manager;
if( !manager.AllowMixedOrientation || parentModel.Orientation == System.Windows.Controls.Orientation.Horizontal )
{
parentModel.Orientation = System.Windows.Controls.Orientation.Horizontal;
int targetPaneIndex = parentModel.IndexOfChild( targetModel );
parentModel.Children.Insert( targetPaneIndex, newLayoutDocumentPane );
}
else
{
LayoutDocumentPaneGroup newChildGroup = new LayoutDocumentPaneGroup();
newChildGroup.Orientation = System.Windows.Controls.Orientation.Horizontal;
parentModel.ReplaceChild( targetModel, newChildGroup );
newChildGroup.Children.Add( newLayoutDocumentPane );
newChildGroup.Children.Add( targetModel );
}
}
}
break;
#endregion
case DropTargetType.DocumentPaneDockRight:
#region DropTargetType.DocumentPaneDockRight
{
var newLayoutDocumentPane = new LayoutDocumentPane( floatingWindow.RootDocument );
var targetPane = targetModel as ILayoutPositionableElement;
if( targetPane != null )
{
// Set the DockWidth of the targetPane and the newLayoutDocumentPane so they both use the same size.
if( targetPane.DockWidth.IsStar )
{
targetPane.DockWidth = new GridLength( targetPane.DockWidth.Value / 2d, GridUnitType.Star );
newLayoutDocumentPane.DockWidth = targetPane.DockWidth;
}
}
var parentModel = targetModel.Parent as LayoutDocumentPaneGroup;
if( parentModel == null )
{
var parentContainer = targetModel.Parent as ILayoutContainer;
var newParentModel = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Horizontal };
parentContainer.ReplaceChild( targetModel, newParentModel );
newParentModel.Children.Add( targetModel as LayoutDocumentPane );
newParentModel.Children.Add( newLayoutDocumentPane );
}
else
{
var manager = parentModel.Root.Manager;
if( !manager.AllowMixedOrientation || parentModel.Orientation == System.Windows.Controls.Orientation.Horizontal )
{
parentModel.Orientation = System.Windows.Controls.Orientation.Horizontal;
int targetPaneIndex = parentModel.IndexOfChild( targetModel );
parentModel.Children.Insert( targetPaneIndex + 1, newLayoutDocumentPane );
}
else
{
LayoutDocumentPaneGroup newChildGroup = new LayoutDocumentPaneGroup();
newChildGroup.Orientation = System.Windows.Controls.Orientation.Horizontal;
parentModel.ReplaceChild( targetModel, newChildGroup );
newChildGroup.Children.Add( targetModel );
newChildGroup.Children.Add( newLayoutDocumentPane );
}
}
}
break;
#endregion
case DropTargetType.DocumentPaneDockInside:
#region DropTargetType.DocumentPaneDockInside
{
var paneModel = targetModel as LayoutDocumentPane;
var sourceModel = floatingWindow.RootDocument;
int i = 0;
if( _tabIndex != -1 )
{
i = _tabIndex;
}
else
{
var previousIndex = 0;
var previousContainer = ( ( ILayoutPreviousContainer )sourceModel ).PreviousContainer;
if( object.ReferenceEquals( previousContainer, targetModel ) && ( sourceModel.PreviousContainerIndex != -1 ) )
{
previousIndex = sourceModel.PreviousContainerIndex;
}
i = previousIndex;
}
sourceModel.IsActive = false;
paneModel.Children.Insert( Math.Min( i, paneModel.Children.Count ), sourceModel );
sourceModel.IsActive = true;
}
break;
#endregion
}
base.Drop( floatingWindow );
}
protected override void Drop( LayoutAnchorableFloatingWindow floatingWindow )
{
ILayoutDocumentPane targetModel = _targetPane.Model as ILayoutDocumentPane;
switch( Type )
{
case DropTargetType.DocumentPaneDockBottom:
#region DropTargetType.DocumentPaneDockBottom
{
var parentModel = targetModel.Parent as LayoutDocumentPaneGroup;
var newLayoutDocumentPane = new LayoutDocumentPane();
var targetPane = targetModel as ILayoutPositionableElement;
if( targetPane != null )
{
// Set the DockWidth of the targetPane and the newLayoutDocumentPane so they both use the same size.
if( targetPane.DockHeight.IsStar )
{
targetPane.DockHeight = new GridLength( targetPane.DockHeight.Value / 2d, GridUnitType.Star );
newLayoutDocumentPane.DockHeight = targetPane.DockHeight;
}
}
if( parentModel == null )
{
var parentContainer = targetModel.Parent as ILayoutContainer;
var newParentModel = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Vertical };
parentContainer.ReplaceChild( targetModel, newParentModel );
newParentModel.Children.Add( targetModel as LayoutDocumentPane );
newParentModel.Children.Add( newLayoutDocumentPane );
}
else
{
var manager = parentModel.Root.Manager;
if( !manager.AllowMixedOrientation || parentModel.Orientation == System.Windows.Controls.Orientation.Vertical )
{
parentModel.Orientation = System.Windows.Controls.Orientation.Vertical;
int targetPaneIndex = parentModel.IndexOfChild( targetModel );
parentModel.Children.Insert( targetPaneIndex + 1, newLayoutDocumentPane );
}
else
{
LayoutDocumentPaneGroup newChildGroup = new LayoutDocumentPaneGroup();
newChildGroup.Orientation = System.Windows.Controls.Orientation.Vertical;
parentModel.ReplaceChild( targetModel, newChildGroup );
newChildGroup.Children.Add( targetModel );
newChildGroup.Children.Add( newLayoutDocumentPane );
}
}
foreach( var cntToTransfer in floatingWindow.RootPanel.Descendents().OfType<LayoutAnchorable>().ToArray() )
newLayoutDocumentPane.Children.Add( cntToTransfer );
}
break;
#endregion
case DropTargetType.DocumentPaneDockTop:
#region DropTargetType.DocumentPaneDockTop
{
var parentModel = targetModel.Parent as LayoutDocumentPaneGroup;
var newLayoutDocumentPane = new LayoutDocumentPane();
var targetPane = targetModel as ILayoutPositionableElement;
if( targetPane != null )
{
// Set the DockWidth of the targetPane and the newLayoutDocumentPane so they both use the same size.
if( targetPane.DockHeight.IsStar )
{
targetPane.DockHeight = new GridLength( targetPane.DockHeight.Value / 2d, GridUnitType.Star );
newLayoutDocumentPane.DockHeight = targetPane.DockHeight;
}
}
if( parentModel == null )
{
var parentContainer = targetModel.Parent as ILayoutContainer;
var newParentModel = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Vertical };
parentContainer.ReplaceChild( targetModel, newParentModel );
newParentModel.Children.Add( newLayoutDocumentPane );
newParentModel.Children.Add( targetModel as LayoutDocumentPane );
}
else
{
var manager = parentModel.Root.Manager;
if( !manager.AllowMixedOrientation || parentModel.Orientation == System.Windows.Controls.Orientation.Vertical )
{
parentModel.Orientation = System.Windows.Controls.Orientation.Vertical;
int targetPaneIndex = parentModel.IndexOfChild( targetModel );
parentModel.Children.Insert( targetPaneIndex, newLayoutDocumentPane );
}
else
{
LayoutDocumentPaneGroup newChildGroup = new LayoutDocumentPaneGroup();
newChildGroup.Orientation = System.Windows.Controls.Orientation.Vertical;
parentModel.ReplaceChild( targetModel, newChildGroup );
newChildGroup.Children.Add( newLayoutDocumentPane );
newChildGroup.Children.Add( targetModel );
}
}
foreach( var cntToTransfer in floatingWindow.RootPanel.Descendents().OfType<LayoutAnchorable>().ToArray() )
newLayoutDocumentPane.Children.Add( cntToTransfer );
}
break;
#endregion
case DropTargetType.DocumentPaneDockLeft:
#region DropTargetType.DocumentPaneDockLeft
{
var parentModel = targetModel.Parent as LayoutDocumentPaneGroup;
var newLayoutDocumentPane = new LayoutDocumentPane();
var targetPane = targetModel as ILayoutPositionableElement;
if( targetPane != null )
{
// Set the DockWidth of the targetPane and the newLayoutDocumentPane so they both use the same size.
if( targetPane.DockWidth.IsStar )
{
targetPane.DockWidth = new GridLength( targetPane.DockWidth.Value / 2d, GridUnitType.Star );
newLayoutDocumentPane.DockWidth = targetPane.DockWidth;
}
}
if( parentModel == null )
{
var parentContainer = targetModel.Parent as ILayoutContainer;
var newParentModel = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Horizontal };
parentContainer.ReplaceChild( targetModel, newParentModel );
newParentModel.Children.Add( newLayoutDocumentPane );
newParentModel.Children.Add( targetModel as LayoutDocumentPane );
}
else
{
var manager = parentModel.Root.Manager;
if( !manager.AllowMixedOrientation || parentModel.Orientation == System.Windows.Controls.Orientation.Horizontal )
{
parentModel.Orientation = System.Windows.Controls.Orientation.Horizontal;
int targetPaneIndex = parentModel.IndexOfChild( targetModel );
parentModel.Children.Insert( targetPaneIndex, newLayoutDocumentPane );
}
else
{
LayoutDocumentPaneGroup newChildGroup = new LayoutDocumentPaneGroup();
newChildGroup.Orientation = System.Windows.Controls.Orientation.Horizontal;
parentModel.ReplaceChild( targetModel, newChildGroup );
newChildGroup.Children.Add( newLayoutDocumentPane );
newChildGroup.Children.Add( targetModel );
}
}
foreach( var cntToTransfer in floatingWindow.RootPanel.Descendents().OfType<LayoutAnchorable>().ToArray() )
newLayoutDocumentPane.Children.Add( cntToTransfer );
}
break;
#endregion
case DropTargetType.DocumentPaneDockRight:
#region DropTargetType.DocumentPaneDockRight
{
var parentModel = targetModel.Parent as LayoutDocumentPaneGroup;
var newLayoutDocumentPane = new LayoutDocumentPane();
var targetPane = targetModel as ILayoutPositionableElement;
if( targetPane != null )
{
// Set the DockWidth of the targetPane and the newLayoutDocumentPane so they both use the same size.
if( targetPane.DockWidth.IsStar )
{
targetPane.DockWidth = new GridLength( targetPane.DockWidth.Value / 2d, GridUnitType.Star );
newLayoutDocumentPane.DockWidth = targetPane.DockWidth;
}
}
if( parentModel == null )
{
var parentContainer = targetModel.Parent as ILayoutContainer;
var newParentModel = new LayoutDocumentPaneGroup() { Orientation = System.Windows.Controls.Orientation.Horizontal };
parentContainer.ReplaceChild( targetModel, newParentModel );
newParentModel.Children.Add( targetModel as LayoutDocumentPane );
newParentModel.Children.Add( newLayoutDocumentPane );
}
else
{
var manager = parentModel.Root.Manager;
if( !manager.AllowMixedOrientation || parentModel.Orientation == System.Windows.Controls.Orientation.Horizontal )
{
parentModel.Orientation = System.Windows.Controls.Orientation.Horizontal;
int targetPaneIndex = parentModel.IndexOfChild( targetModel );
parentModel.Children.Insert( targetPaneIndex + 1, newLayoutDocumentPane );
}
else
{
LayoutDocumentPaneGroup newChildGroup = new LayoutDocumentPaneGroup();
newChildGroup.Orientation = System.Windows.Controls.Orientation.Horizontal;
parentModel.ReplaceChild( targetModel, newChildGroup );
newChildGroup.Children.Add( targetModel );
newChildGroup.Children.Add( newLayoutDocumentPane );
}
}
foreach( var cntToTransfer in floatingWindow.RootPanel.Descendents().OfType<LayoutAnchorable>().ToArray() )
newLayoutDocumentPane.Children.Add( cntToTransfer );
}
break;
#endregion
case DropTargetType.DocumentPaneDockInside:
#region DropTargetType.DocumentPaneDockInside
{
var paneModel = targetModel as LayoutDocumentPane;
var layoutAnchorablePaneGroup = floatingWindow.RootPanel as LayoutAnchorablePaneGroup;
bool checkPreviousContainer = true;
int i = 0;
if( _tabIndex != -1 )
{
i = _tabIndex;
checkPreviousContainer = false;
}
LayoutAnchorable anchorableToActivate = null;
foreach( var anchorableToImport in layoutAnchorablePaneGroup.Descendents().OfType<LayoutAnchorable>().ToArray() )
{
if( checkPreviousContainer )
{
var previousContainer = ( ( ILayoutPreviousContainer )anchorableToImport ).PreviousContainer;
if( object.ReferenceEquals( previousContainer, targetModel ) && ( anchorableToImport.PreviousContainerIndex != -1 ) )
{
i = anchorableToImport.PreviousContainerIndex;
}
checkPreviousContainer = false;
}
if( anchorableToImport.CanClose )
{
anchorableToImport.SetCanCloseInternal( true );
}
paneModel.Children.Insert( Math.Min( i, paneModel.Children.Count ), anchorableToImport );
i++;
anchorableToActivate = anchorableToImport;
}
anchorableToActivate.IsActive = true;
}
break;
#endregion
}
base.Drop( floatingWindow );
}
public override System.Windows.Media.Geometry GetPreviewPath( OverlayWindow overlayWindow, LayoutFloatingWindow floatingWindowModel )
{
switch( Type )
{
case DropTargetType.DocumentPaneDockInside:
{
var targetScreenRect = TargetElement.GetScreenArea();
targetScreenRect.Offset( -overlayWindow.Left, -overlayWindow.Top );
if( _tabIndex == -1 )
{
return new RectangleGeometry( targetScreenRect );
}
else
{
var translatedDetectionRect = new Rect( DetectionRects[ 0 ].TopLeft, DetectionRects[ 0 ].BottomRight );
translatedDetectionRect.Offset( -overlayWindow.Left, -overlayWindow.Top );
var pathFigure = new PathFigure();
pathFigure.StartPoint = targetScreenRect.BottomRight;
pathFigure.Segments.Add( new LineSegment() { Point = new Point( targetScreenRect.Right, translatedDetectionRect.Bottom ) } );
pathFigure.Segments.Add( new LineSegment() { Point = translatedDetectionRect.BottomRight } );
pathFigure.Segments.Add( new LineSegment() { Point = translatedDetectionRect.TopRight } );
pathFigure.Segments.Add( new LineSegment() { Point = translatedDetectionRect.TopLeft } );
pathFigure.Segments.Add( new LineSegment() { Point = translatedDetectionRect.BottomLeft } );
pathFigure.Segments.Add( new LineSegment() { Point = new Point( targetScreenRect.Left, translatedDetectionRect.Bottom ) } );
pathFigure.Segments.Add( new LineSegment() { Point = targetScreenRect.BottomLeft } );
pathFigure.IsClosed = true;
pathFigure.IsFilled = true;
pathFigure.Freeze();
return new PathGeometry( new PathFigure[] { pathFigure } );
}
}
case DropTargetType.DocumentPaneDockBottom:
{
var targetScreenRect = TargetElement.GetScreenArea();
targetScreenRect.Offset( -overlayWindow.Left, -overlayWindow.Top );
targetScreenRect.Offset( 0.0, targetScreenRect.Height / 2.0 );
targetScreenRect.Height /= 2.0;
return new RectangleGeometry( targetScreenRect );
}
case DropTargetType.DocumentPaneDockTop:
{
var targetScreenRect = TargetElement.GetScreenArea();
targetScreenRect.Offset( -overlayWindow.Left, -overlayWindow.Top );
targetScreenRect.Height /= 2.0;
return new RectangleGeometry( targetScreenRect );
}
case DropTargetType.DocumentPaneDockLeft:
{
var targetScreenRect = TargetElement.GetScreenArea();
targetScreenRect.Offset( -overlayWindow.Left, -overlayWindow.Top );
targetScreenRect.Width /= 2.0;
return new RectangleGeometry( targetScreenRect );
}
case DropTargetType.DocumentPaneDockRight:
{
var targetScreenRect = TargetElement.GetScreenArea();
targetScreenRect.Offset( -overlayWindow.Left, -overlayWindow.Top );
targetScreenRect.Offset( targetScreenRect.Width / 2.0, 0.0 );
targetScreenRect.Width /= 2.0;
return new RectangleGeometry( targetScreenRect );
}
}
return null;
}
#endregion
}
}