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353 lines
13 KiB
353 lines
13 KiB
/*************************************************************************************
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Extended WPF Toolkit
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Copyright (C) 2007-2013 Xceed Software Inc.
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This program is provided to you under the terms of the Microsoft Public
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License (Ms-PL) as published at http://wpftoolkit.codeplex.com/license
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For more features, controls, and fast professional support,
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pick up the Plus Edition at http://xceed.com/wpf_toolkit
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Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids
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***********************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Windows;
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using System.Runtime.InteropServices;
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using System.Windows.Interop;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Media;
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using System.Windows.Input;
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using Xceed.Wpf.AvalonDock.Layout;
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using Xceed.Wpf.AvalonDock.Converters;
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using System.Diagnostics;
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using System.Windows.Controls.Primitives;
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using Xceed.Wpf.AvalonDock.Commands;
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using Microsoft.Windows.Shell;
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namespace Xceed.Wpf.AvalonDock.Controls
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{
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public class LayoutAnchorableFloatingWindowControl : LayoutFloatingWindowControl, IOverlayWindowHost
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{
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static LayoutAnchorableFloatingWindowControl()
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{
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DefaultStyleKeyProperty.OverrideMetadata(typeof(LayoutAnchorableFloatingWindowControl), new FrameworkPropertyMetadata(typeof(LayoutAnchorableFloatingWindowControl)));
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}
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internal LayoutAnchorableFloatingWindowControl(LayoutAnchorableFloatingWindow model)
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:base(model)
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{
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_model = model;
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HideWindowCommand = new RelayCommand((p) => OnExecuteHideWindowCommand(p), (p) => CanExecuteHideWindowCommand(p));
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}
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internal override void UpdateThemeResources( Xceed.Wpf.AvalonDock.Themes.Theme oldTheme = null )
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{
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base.UpdateThemeResources(oldTheme);
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if (_overlayWindow != null)
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_overlayWindow.UpdateThemeResources(oldTheme);
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}
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LayoutAnchorableFloatingWindow _model;
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public override ILayoutElement Model
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{
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get { return _model; }
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}
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#region SingleContentLayoutItem
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/// <summary>
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/// SingleContentLayoutItem Dependency Property
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/// </summary>
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public static readonly DependencyProperty SingleContentLayoutItemProperty =
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DependencyProperty.Register("SingleContentLayoutItem", typeof(LayoutItem), typeof(LayoutAnchorableFloatingWindowControl),
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new FrameworkPropertyMetadata((LayoutItem)null,
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new PropertyChangedCallback(OnSingleContentLayoutItemChanged)));
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/// <summary>
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/// Gets or sets the SingleContentLayoutItem property. This dependency property
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/// indicates the layout item of the selected content when is shown a single anchorable pane.
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/// </summary>
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public LayoutItem SingleContentLayoutItem
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{
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get { return (LayoutItem)GetValue(SingleContentLayoutItemProperty); }
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set { SetValue(SingleContentLayoutItemProperty, value); }
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}
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/// <summary>
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/// Handles changes to the SingleContentLayoutItem property.
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/// </summary>
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private static void OnSingleContentLayoutItemChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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((LayoutAnchorableFloatingWindowControl)d).OnSingleContentLayoutItemChanged(e);
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}
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/// <summary>
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/// Provides derived classes an opportunity to handle changes to the SingleContentLayoutItem property.
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/// </summary>
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protected virtual void OnSingleContentLayoutItemChanged(DependencyPropertyChangedEventArgs e)
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{
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}
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#endregion
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protected override void OnInitialized(EventArgs e)
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{
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base.OnInitialized(e);
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var manager = _model.Root.Manager;
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Content = manager.CreateUIElementForModel(_model.RootPanel);
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//SetBinding(VisibilityProperty, new Binding("IsVisible") { Source = _model, Converter = new BoolToVisibilityConverter(), Mode = BindingMode.OneWay, ConverterParameter = Visibility.Hidden });
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//Issue: http://avalondock.codeplex.com/workitem/15036
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IsVisibleChanged += (s, args) =>
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{
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var visibilityBinding = GetBindingExpression(VisibilityProperty);
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if (IsVisible && (visibilityBinding == null))
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{
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SetBinding(VisibilityProperty, new Binding("IsVisible") { Source = _model, Converter = new BoolToVisibilityConverter(), Mode = BindingMode.OneWay, ConverterParameter = Visibility.Hidden });
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}
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};
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SetBinding(SingleContentLayoutItemProperty, new Binding("Model.SinglePane.SelectedContent") { Source = this, Converter = new LayoutItemFromLayoutModelConverter() });
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_model.PropertyChanged += new System.ComponentModel.PropertyChangedEventHandler(_model_PropertyChanged);
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}
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void _model_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
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{
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if (e.PropertyName == "RootPanel" &&
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_model.RootPanel == null)
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{
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InternalClose();
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}
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}
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bool IOverlayWindowHost.HitTest(Point dragPoint)
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{
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Rect detectionRect = new Rect(this.PointToScreenDPIWithoutFlowDirection(new Point()), this.TransformActualSizeToAncestor());
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return detectionRect.Contains(dragPoint);
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}
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DockingManager IOverlayWindowHost.Manager
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{
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get { return _model.Root.Manager; }
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}
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OverlayWindow _overlayWindow = null;
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void CreateOverlayWindow()
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{
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if (_overlayWindow == null)
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_overlayWindow = new OverlayWindow(this);
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Rect rectWindow = new Rect(this.PointToScreenDPIWithoutFlowDirection(new Point()), this.TransformActualSizeToAncestor());
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_overlayWindow.Left = rectWindow.Left;
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_overlayWindow.Top = rectWindow.Top;
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_overlayWindow.Width = rectWindow.Width;
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_overlayWindow.Height = rectWindow.Height;
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}
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IOverlayWindow IOverlayWindowHost.ShowOverlayWindow(LayoutFloatingWindowControl draggingWindow)
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{
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CreateOverlayWindow();
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_overlayWindow.Owner = draggingWindow;
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_overlayWindow.EnableDropTargets();
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_overlayWindow.Show();
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return _overlayWindow;
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}
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void IOverlayWindowHost.HideOverlayWindow()
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{
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_dropAreas = null;
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_overlayWindow.Owner = null;
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_overlayWindow.HideDropTargets();
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}
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List<IDropArea> _dropAreas = null;
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IEnumerable<IDropArea> IOverlayWindowHost.GetDropAreas(LayoutFloatingWindowControl draggingWindow)
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{
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if (_dropAreas != null)
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return _dropAreas;
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_dropAreas = new List<IDropArea>();
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if (draggingWindow.Model is LayoutDocumentFloatingWindow)
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return _dropAreas;
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var rootVisual = (Content as FloatingWindowContentHost).RootVisual;
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foreach (var areaHost in rootVisual.FindVisualChildren<LayoutAnchorablePaneControl>())
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{
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_dropAreas.Add(new DropArea<LayoutAnchorablePaneControl>(
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areaHost,
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DropAreaType.AnchorablePane));
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}
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foreach (var areaHost in rootVisual.FindVisualChildren<LayoutDocumentPaneControl>())
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{
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_dropAreas.Add(new DropArea<LayoutDocumentPaneControl>(
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areaHost,
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DropAreaType.DocumentPane));
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}
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return _dropAreas;
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}
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protected override void OnClosed(EventArgs e)
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{
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var root = Model.Root;
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root.Manager.RemoveFloatingWindow(this);
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root.CollectGarbage();
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if (_overlayWindow != null)
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{
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_overlayWindow.Close();
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_overlayWindow = null;
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}
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base.OnClosed(e);
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if (!CloseInitiatedByUser)
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{
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root.FloatingWindows.Remove(_model);
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}
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_model.PropertyChanged -= new System.ComponentModel.PropertyChangedEventHandler(_model_PropertyChanged);
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}
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protected override void OnClosing(System.ComponentModel.CancelEventArgs e)
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{
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if (CloseInitiatedByUser && !KeepContentVisibleOnClose)
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{
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e.Cancel = true;
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_model.Descendents().OfType<LayoutAnchorable>().ToArray().ForEach<LayoutAnchorable>((a) => a.Hide());
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}
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base.OnClosing(e);
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}
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protected override IntPtr FilterMessage(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
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{
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switch (msg)
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{
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case Win32Helper.WM_NCLBUTTONDOWN: //Left button down on title -> start dragging over docking manager
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if (wParam.ToInt32() == Win32Helper.HT_CAPTION)
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{
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_model.Descendents().OfType<LayoutAnchorablePane>().First(p => p.ChildrenCount > 0 && p.SelectedContent != null).SelectedContent.IsActive = true;
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handled = true;
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}
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break;
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case Win32Helper.WM_NCRBUTTONUP:
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if (wParam.ToInt32() == Win32Helper.HT_CAPTION)
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{
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if (OpenContextMenu())
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handled = true;
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if (_model.Root.Manager.ShowSystemMenu)
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WindowChrome.GetWindowChrome(this).ShowSystemMenu = !handled;
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else
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WindowChrome.GetWindowChrome(this).ShowSystemMenu = false;
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}
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break;
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}
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return base.FilterMessage(hwnd, msg, wParam, lParam, ref handled);
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}
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bool OpenContextMenu()
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{
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var ctxMenu = _model.Root.Manager.AnchorableContextMenu;
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if (ctxMenu != null && SingleContentLayoutItem != null)
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{
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ctxMenu.PlacementTarget = null;
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ctxMenu.Placement = PlacementMode.MousePoint;
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ctxMenu.DataContext = SingleContentLayoutItem;
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ctxMenu.IsOpen = true;
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return true;
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}
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return false;
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}
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bool IsContextMenuOpen()
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{
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var ctxMenu = _model.Root.Manager.AnchorableContextMenu;
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if (ctxMenu != null && SingleContentLayoutItem != null)
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{
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return ctxMenu.IsOpen;
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}
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return false;
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}
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#region HideWindowCommand
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public ICommand HideWindowCommand
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{
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get;
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private set;
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}
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private bool CanExecuteHideWindowCommand(object parameter)
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{
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if (Model == null)
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return false;
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var root = Model.Root;
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if (root == null)
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return false;
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var manager = root.Manager;
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if (manager == null)
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return false;
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bool canExecute = false;
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foreach (var anchorable in this.Model.Descendents().OfType<LayoutAnchorable>().ToArray())
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{
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if (!anchorable.CanHide)
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{
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canExecute = false;
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break;
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}
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var anchorableLayoutItem = manager.GetLayoutItemFromModel(anchorable) as LayoutAnchorableItem;
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if (anchorableLayoutItem == null ||
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anchorableLayoutItem.HideCommand == null ||
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!anchorableLayoutItem.HideCommand.CanExecute(parameter))
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{
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canExecute = false;
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break;
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}
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canExecute = true;
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}
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return canExecute;
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}
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private void OnExecuteHideWindowCommand(object parameter)
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{
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var manager = Model.Root.Manager;
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foreach (var anchorable in this.Model.Descendents().OfType<LayoutAnchorable>().ToArray())
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{
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var anchorableLayoutItem = manager.GetLayoutItemFromModel(anchorable) as LayoutAnchorableItem;
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anchorableLayoutItem.HideCommand.Execute(parameter);
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}
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}
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#endregion
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}
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}
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