/// <summary>
/// Loads the docking layout.
/// </summary>
/// <param name="storedLayout">The stored layout.</param>
/// <inheritdoc cref="DockSerializer.Load"/>
public void LoadLayout(XElement storedLayout)
{
try
{
DockStrategy.Begin();
var oldItems = Items.ToList();
DockSerializer.Load(this, storedLayout);
var newItems = Items.ToList();
// Screen conduction for items closed in Load().
foreach (var dockTabItem in oldItems.Except(newItems))
{
// IActivatable
(dockTabItem as IActivatable)?.OnDeactivate(true);
// IScreen
var screen = dockTabItem as IScreen;
if (screen != null)
{
screen.Conductor = null;
}
}
}
finally
{
DockStrategy.End();
}
}
/// <summary>
/// Saves the docking layout.
/// </summary>
/// <param name="excludeNonPersistentItems">
/// <see langword="true"/> to exclude non-persistent <see cref="IDockTabItem"/>s.
/// <see langword="false"/> to store the layout of all (persistent and non-persistent)
/// <see cref="IDockTabItem"/>s.
/// </param>
/// <returns>The <see cref="XElement"/> with the serialized layout.</returns>
/// <inheritdoc cref="DockSerializer.Save(IDockControl,bool)"/>
public XElement SaveLayout(bool excludeNonPersistentItems = false)
{
try
{
DockStrategy.Begin();
return(DockSerializer.Save(this, excludeNonPersistentItems));
}
finally
{
DockStrategy.End();
}
}
public MainViewModel()
{
Themes = new List <string>
{
"Default",
"System",
"Light",
"Gray",
"Dark",
};
SelectedThemeIndex = 3;
// Build dock layout directly.
//var dockTabPaneViewModel = new DockTabPaneViewModel();
//dockTabPaneViewModel.Items.Add(new SystemViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new SystemViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new DigitalRuneViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new DigitalRuneViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new PropertyGridViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new PropertyGridViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new ICSharpDevelopViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new ICSharpDevelopViewModel { DockState = DockState.Dock });
//var dockAnchorPaneViewModel = new DockAnchorPaneViewModel
//{
// ChildPane = dockTabPaneViewModel
//};
//DockControlViewModel = new DockControlViewModel(new DockStrategy())
//{
// RootPane = dockAnchorPaneViewModel
//};
// Or use DockStrategy to do the same.
var dockStrategy = new DockStrategy();
DockControlViewModel = new DockControlViewModel(dockStrategy)
{
RootPane = new DockAnchorPaneViewModel(),
};
dockStrategy.Begin();
dockStrategy.Dock(new SystemViewModel());
dockStrategy.Dock(new SystemViewModel());
dockStrategy.Dock(new DigitalRuneViewModel());
dockStrategy.Dock(new DigitalRuneViewModel());
dockStrategy.Dock(new PropertyGridViewModel());
dockStrategy.Dock(new PropertyGridViewModel());
dockStrategy.Dock(new ICSharpDevelopViewModel());
dockStrategy.Dock(new ICSharpDevelopViewModel());
dockStrategy.End();
}
public MainViewModel()
{
Themes = new List<string>
{
"Default",
"System",
"Light",
"Gray",
"Dark",
};
SelectedThemeIndex = 3;
// Build dock layout directly.
//var dockTabPaneViewModel = new DockTabPaneViewModel();
//dockTabPaneViewModel.Items.Add(new SystemViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new SystemViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new DigitalRuneViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new DigitalRuneViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new PropertyGridViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new PropertyGridViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new ICSharpDevelopViewModel { DockState = DockState.Dock });
//dockTabPaneViewModel.Items.Add(new ICSharpDevelopViewModel { DockState = DockState.Dock });
//var dockAnchorPaneViewModel = new DockAnchorPaneViewModel
//{
// ChildPane = dockTabPaneViewModel
//};
//DockControlViewModel = new DockControlViewModel(new DockStrategy())
//{
// RootPane = dockAnchorPaneViewModel
//};
// Or use DockStrategy to do the same.
var dockStrategy = new DockStrategy();
DockControlViewModel = new DockControlViewModel(dockStrategy)
{
RootPane = new DockAnchorPaneViewModel(),
};
dockStrategy.Begin();
dockStrategy.Dock(new SystemViewModel());
dockStrategy.Dock(new SystemViewModel());
dockStrategy.Dock(new DigitalRuneViewModel());
dockStrategy.Dock(new DigitalRuneViewModel());
dockStrategy.Dock(new PropertyGridViewModel());
dockStrategy.Dock(new PropertyGridViewModel());
dockStrategy.Dock(new ICSharpDevelopViewModel());
dockStrategy.Dock(new ICSharpDevelopViewModel());
dockStrategy.End();
}
/// <summary>
/// Starts a drag operation.
/// </summary>
/// <param name="floatWindow">The <see cref="FloatWindow"/> to be dragged.</param>
/// <param name="dockTabPane">The <see cref="DockTabPane"/> to be dragged.</param>
/// <param name="dockTabItem">The <see cref="DockTabItem"/> to be dragged.</param>
/// <returns>
/// <see langword="true" /> if the drag operation has been started; otherwise,
/// <see langword="false" /> if the drag operation could not be started (e.g. because the
/// mouse could not be captured).
/// </returns>
private bool BeginDrag(FloatWindow floatWindow, DockTabPane dockTabPane, DockTabItem dockTabItem)
{
_dockStrategy = _dockControl.GetViewModel()?.DockStrategy;
if (_dockStrategy == null || _dockStrategy.DockControl.IsLocked)
{
Reset();
return(false);
}
FrameworkElement element = null;
IDockTabPane draggedPane = null;
IDockTabItem draggedItem = null;
if (floatWindow != null)
{
// User is dragging a FloatWindow.
// (Note: Dragging of FloatWindows with nested layouts is not supported.)
draggedPane = floatWindow.GetViewModel()?.RootPane as IDockTabPane;
element = floatWindow;
_floatWindow = floatWindow;
_initialSize = floatWindow.RenderSize;
// Start dragging immediately.
_dragDeltaExceeded = true;
}
else if (dockTabItem != null)
{
// User is dragging a DockTabItem in a DockTabPanel.
draggedItem = dockTabItem.GetViewModel();
element = dockTabItem;
_targetDockTabPane = dockTabPane;
_initialSize = dockTabPane.RenderSize;
// Start dragging when threshold is exceeded.
_initialMousePosition = WindowsHelper.GetMousePosition(_dockControl);
_dragDeltaExceeded = false;
}
else if (dockTabPane != null)
{
// User is dragging a DockTabPane.
draggedPane = dockTabPane.GetViewModel();
element = dockTabPane;
_initialSize = dockTabPane.RenderSize;
_initialMousePosition = WindowsHelper.GetMousePosition(_dockControl);
// Start dragging when threshold is exceeded.
_initialMousePosition = WindowsHelper.GetMousePosition(_dockControl);
_dragDeltaExceeded = false;
}
if (draggedPane == null && draggedItem == null)
{
Reset();
return(false);
}
// When the user is dragging the FloatWindow, the mouse is captured by Win32 move window
// loop. When dragging a DockTabPane or DockTabItem, the mouse needs to be
// captured to receive mouse events.
if (_floatWindow == null)
{
if (!_dockControl.CaptureMouse())
{
// Failed to capture the mouse.
Reset();
return(false);
}
_dockControl.LostMouseCapture += OnLostMouseCapture;
_dockControl.MouseLeftButtonUp += OnMouseLeftButtonUp;
_dockControl.MouseMove += OnMouseMove;
_dockControl.PreviewKeyDown += OnPreviewKeyDown;
if (_targetDockTabPane != null)
{
_targetDockTabPane.PreviewKeyDown += OnPreviewKeyDown;
}
}
_dockStrategy.Begin();
if (draggedPane != null)
{
_dockStrategy.Activate(draggedPane);
_activeItem = draggedPane.SelectedItem;
foreach (var item in draggedPane.Items)
{
if (item.DockState == draggedPane.DockState)
{
_draggedItems.Add(item);
}
}
}
else
{
Debug.Assert(draggedItem != null);
_dockStrategy.Activate(draggedItem);
_activeItem = draggedItem;
_draggedItems.Add(draggedItem);
}
Debug.Assert(_draggedItems.Count > 0);
// Determine whether dragged items may end in a FloatWindow.
_canFloat = CanFloat();
// Store the mouse offset relative to the dragged element.
_mouseOffset = (Vector)WindowsHelper.GetMousePosition(element);
// Remember information needed for a rollback.
ReplaceItemsWithProxies(draggedPane ?? _targetDockTabPane.GetViewModel());
_originalDockState = _draggedItems[0].DockState;
BackupFloatWindowPosition();
// Override mouse cursors. (Mouse cursor should not change to caret over text editor.)
Mouse.OverrideCursor = Cursors.Arrow;
return(true);
}
/// <summary>
/// Starts a drag operation.
/// </summary>
/// <param name="floatWindow">The <see cref="FloatWindow"/> to be dragged.</param>
/// <param name="dockTabPane">The <see cref="DockTabPane"/> to be dragged.</param>
/// <param name="dockTabItem">The <see cref="DockTabItem"/> to be dragged.</param>
/// <returns>
/// <see langword="true" /> if the drag operation has been started; otherwise,
/// <see langword="false" /> if the drag operation could not be started (e.g. because the
/// mouse could not be captured).
/// </returns>
private bool BeginDrag(FloatWindow floatWindow, DockTabPane dockTabPane, DockTabItem dockTabItem)
{
_dockStrategy = _dockControl.GetViewModel()?.DockStrategy;
if (_dockStrategy == null || _dockStrategy.DockControl.IsLocked)
{
Reset();
return false;
}
FrameworkElement element = null;
IDockTabPane draggedPane = null;
IDockTabItem draggedItem = null;
if (floatWindow != null)
{
// User is dragging a FloatWindow.
// (Note: Dragging of FloatWindows with nested layouts is not supported.)
draggedPane = floatWindow.GetViewModel()?.RootPane as IDockTabPane;
element = floatWindow;
_floatWindow = floatWindow;
_initialSize = floatWindow.RenderSize;
// Start dragging immediately.
_dragDeltaExceeded = true;
}
else if (dockTabItem != null)
{
// User is dragging a DockTabItem in a DockTabPanel.
draggedItem = dockTabItem.GetViewModel();
element = dockTabItem;
_targetDockTabPane = dockTabPane;
_initialSize = dockTabPane.RenderSize;
// Start dragging when threshold is exceeded.
_initialMousePosition = WindowsHelper.GetMousePosition(_dockControl);
_dragDeltaExceeded = false;
}
else if (dockTabPane != null)
{
// User is dragging a DockTabPane.
draggedPane = dockTabPane.GetViewModel();
element = dockTabPane;
_initialSize = dockTabPane.RenderSize;
_initialMousePosition = WindowsHelper.GetMousePosition(_dockControl);
// Start dragging when threshold is exceeded.
_initialMousePosition = WindowsHelper.GetMousePosition(_dockControl);
_dragDeltaExceeded = false;
}
if (draggedPane == null && draggedItem == null)
{
Reset();
return false;
}
// When the user is dragging the FloatWindow, the mouse is captured by Win32 move window
// loop. When dragging a DockTabPane or DockTabItem, the mouse needs to be
// captured to receive mouse events.
if (_floatWindow == null)
{
if (!_dockControl.CaptureMouse())
{
// Failed to capture the mouse.
Reset();
return false;
}
_dockControl.LostMouseCapture += OnLostMouseCapture;
_dockControl.MouseLeftButtonUp += OnMouseLeftButtonUp;
_dockControl.MouseMove += OnMouseMove;
_dockControl.PreviewKeyDown += OnPreviewKeyDown;
if (_targetDockTabPane != null)
_targetDockTabPane.PreviewKeyDown += OnPreviewKeyDown;
}
_dockStrategy.Begin();
if (draggedPane != null)
{
_dockStrategy.Activate(draggedPane);
_activeItem = draggedPane.SelectedItem;
foreach (var item in draggedPane.Items)
if (item.DockState == draggedPane.DockState)
_draggedItems.Add(item);
}
else
{
Debug.Assert(draggedItem != null);
_dockStrategy.Activate(draggedItem);
_activeItem = draggedItem;
_draggedItems.Add(draggedItem);
}
Debug.Assert(_draggedItems.Count > 0);
// Determine whether dragged items may end in a FloatWindow.
_canFloat = CanFloat();
// Store the mouse offset relative to the dragged element.
_mouseOffset = (Vector)WindowsHelper.GetMousePosition(element);
// Remember information needed for a rollback.
ReplaceItemsWithProxies(draggedPane ?? _targetDockTabPane.GetViewModel());
_originalDockState = _draggedItems[0].DockState;
BackupFloatWindowPosition();
// Override mouse cursors. (Mouse cursor should not change to caret over text editor.)
Mouse.OverrideCursor = Cursors.Arrow;
return true;
}
