/// <summary>
/// Execute handler for the MdiCommands.MinimizeWindow command.
/// </summary>
private void ExecuteMinimizeWindow(ExecutedRoutedEventArgs e)
{
MdiWindow window = Content as MdiWindow;
Debug.Assert(window != null && MdiPanel.GetWindowState(window) != WindowState.Minimized);
MinimizeWindow(window);
}
/// <summary>
/// Execute handler for the MdiCommands.RestoreWindow command.
/// </summary>
private void ExecuteRestoreWindow(ExecutedRoutedEventArgs e)
{
MdiWindow window = Content as MdiWindow;
Debug.Assert(window != null && MdiPanel.GetWindowState(window) != WindowState.Normal);
RestoreWindow(window);
}
/// <summary>
/// Execute handler for the MdiCommands.AdjustWindowRect command.
/// </summary>
private void ExecuteAdjustWindowRect(ExecutedRoutedEventArgs e)
{
UIElement originalSource = (UIElement)e.OriginalSource;
AdjustWindowRectParameter swp = (AdjustWindowRectParameter)e.Parameter;
MdiWindow window = Content as MdiWindow;
Debug.Assert(window != null && MdiPanel.GetWindowState(window) == WindowState.Normal);
Vector delta = originalSource.TransformElementToElement(swp.Delta, window);
AdjustWindowRect(window, delta, swp.InteractiveEdges);
}
// Bring to the front of the windows in the specified state.
public void BringToFront(MdiWindow window, WindowState windowState)
{
int oldIndex = IndexOf(window);
int newIndex = Count - 1;
if (windowState == WindowState.Minimized)
{
bool foundSelf = false;
for (newIndex = 0; newIndex < (Count - 1); newIndex++)
{
if (Items[newIndex] == window)
{
foundSelf = true;
}
if (MdiPanel.GetWindowState(Items[newIndex]) != WindowState.Minimized)
{
break;
}
}
if (foundSelf)
{
newIndex--;
}
}
Move(oldIndex, newIndex);
// HACK: how to coordinate Win32 ZOrder with WPF ZOrder? This works, but assumes to many implementation details.
if (VisualTreeHelper.GetChildrenCount(window) > 0)
{
AirspaceDecorator hwndClipper = VisualTreeHelper.GetChild(window, 0) as AirspaceDecorator;
if (hwndClipper != null)
{
if (VisualTreeHelper.GetChildrenCount(hwndClipper) > 0)
{
HwndSourceHost hwndSourceHost = VisualTreeHelper.GetChild(hwndClipper, 0) as HwndSourceHost;
if (hwndSourceHost != null)
{
HWND hwnd = new HWND(hwndSourceHost.Handle);
NativeMethods.SetWindowPos(hwnd, HWND.TOP, 0, 0, 0, 0, SWP.NOMOVE | SWP.NOSIZE);
}
}
}
}
}
private static object CoerceWindowRect(DependencyObject d, object baseValue)
{
MdiPanel panel = VisualTreeHelper.GetParent(d) as MdiPanel;
FrameworkElement child = d as FrameworkElement;
Rect windowRect = (Rect)baseValue;
if (panel != null && d != null)
{
// Record the base value since we will be using for internal
// calculations.
d.SetValue(BaseWindowRectPropertyKey, windowRect);
// The window rect size must at least be as large as the
// child's minimum size.
windowRect.Width = Math.Max(windowRect.Width, child.MinWidth);
windowRect.Height = Math.Max(windowRect.Height, child.MinHeight);
// The window rect is constrained to the panel bounds.
windowRect = windowRect.ConstrainWithin(panel.Extents);
}
return(windowRect);
}
/// <summary>
/// Adjust the window rect of a window.
/// </summary>
public void AdjustWindowRect(MdiWindow window, Vector delta, MdiWindowEdge interactiveEdges)
{
if (window == null)
{
throw new ArgumentNullException("window");
}
if (Content != window)
{
throw new ArgumentException("Window does not belong to this floater.", "window");
}
Rect screenRect = MdiPanel.GetWindowRect(window);
if (interactiveEdges == MdiWindowEdge.None)
{
screenRect.X += delta.X;
screenRect.Y += delta.Y;
}
else
{
if ((interactiveEdges & MdiWindowEdge.Left) != 0)
{
// Can't size smaller than the minimum size.
double constrainedDelta = Math.Min(delta.X, (screenRect.Width - window.MinWidth));
screenRect.X += constrainedDelta;
screenRect.Width -= constrainedDelta;
}
if ((interactiveEdges & MdiWindowEdge.Right) != 0)
{
// Can't size smaller than the minimum size.
double constrainedDelta = Math.Max(delta.X, -(screenRect.Width - window.MinWidth));
screenRect.Width += constrainedDelta;
}
if ((interactiveEdges & MdiWindowEdge.Top) != 0)
{
// Can't size smaller than the minimum size.
double constrainedDelta = Math.Min(delta.Y, (screenRect.Height - window.MinHeight));
screenRect.Y += constrainedDelta;
screenRect.Height -= constrainedDelta;
}
if ((interactiveEdges & MdiWindowEdge.Bottom) != 0)
{
// Can't size smaller than the minimum size.
double constrainedDelta = Math.Max(delta.Y, -(screenRect.Height - window.MinHeight));
screenRect.Height += constrainedDelta;
}
}
if (window.MinWidth > screenRect.Width)
{
if ((interactiveEdges & MdiWindowEdge.Left) != 0)
{
screenRect.X = screenRect.Right - window.MinWidth;
}
screenRect.Width = window.MinWidth;
}
if (window.MinHeight > screenRect.Height)
{
if ((interactiveEdges & MdiWindowEdge.Top) != 0)
{
screenRect.Y = screenRect.Bottom - window.MinHeight;
}
screenRect.Height = window.MinHeight;
}
MdiPanel.SetWindowRect(window, screenRect);
this.Left = screenRect.Left;
this.Top = screenRect.Top;
this.Width = screenRect.Width;
this.Height = screenRect.Height;
}
/// <summary>
/// CanExecute handler for the MdiCommands.RestoreWindow command.
/// </summary>
private void CanExecuteRestoreWindow(CanExecuteRoutedEventArgs e)
{
MdiWindow window = Content as MdiWindow;
e.CanExecute = (window != null && MdiPanel.GetWindowState(window) != WindowState.Normal);
}
/// <summary>
/// CanExecute handler for the MdiCommands.MinimizeWindow command.
/// </summary>
private void CanExecuteMinimizeWindow(CanExecuteRoutedEventArgs e)
{
MdiWindow window = Content as MdiWindow;
e.CanExecute = (window != null && MdiPanel.GetWindowState(window) != WindowState.Minimized);
}
/// <summary>
/// CanExecute handler for the MdiCommands.AdjustWindowRect command.
/// </summary>
private void CanExecuteAdjustWindowRect(CanExecuteRoutedEventArgs e)
{
MdiWindow window = Content as MdiWindow;
e.CanExecute = (window != null && MdiPanel.GetWindowState(window) == WindowState.Normal);
}