/// <summary>
/// Dependency property event once the focused value has changed.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void FocusedValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
if ((bool)e.NewValue == (bool)e.OldValue)
{
return;
}
MdiChild mdiChild = (MdiChild)sender;
bool focused = (bool)e.NewValue;
if (focused)
{
mdiChild.RaiseEvent(new RoutedEventArgs(GotFocusEvent, mdiChild));
}
else
{
mdiChild.RaiseEvent(new RoutedEventArgs(LostFocusEvent, mdiChild));
}
}
/// <summary>
/// Dependency property event once the focused value has changed.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void FocusedValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
if ((bool)e.NewValue == (bool)e.OldValue)
{
return;
}
MdiChild mdiChild = (MdiChild)sender;
bool focused = (bool)e.NewValue;
if (focused)
{
mdiChild.Dispatcher.BeginInvoke(new Func <IInputElement, IInputElement>(Keyboard.Focus), System.Windows.Threading.DispatcherPriority.ApplicationIdle, mdiChild.Content);
mdiChild.RaiseEvent(new RoutedEventArgs(GotFocusEvent, mdiChild));
}
else
{
mdiChild.RaiseEvent(new RoutedEventArgs(LostFocusEvent, mdiChild));
}
}
/// <summary>
/// Dependency property event once the windows state value has changed.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void WindowStateValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
MdiChild mdiChild = (MdiChild)sender;
WindowState previousWindowState = (WindowState)e.OldValue;
WindowState windowState = (WindowState)e.NewValue;
if (mdiChild.Container == null ||
previousWindowState == windowState)
{
return;
}
if (previousWindowState == WindowState.Maximized)
{
for (int i = 0; i < mdiChild.Container.Children.Count; i++)
{
if (mdiChild.Container.Children[i] != mdiChild &&
mdiChild.Container.Children[i].WindowState == WindowState.Maximized &&
mdiChild.Container.Children[i].MaximizeBox)
{
mdiChild.Container.Children[i].WindowState = WindowState.Normal;
}
}
ScrollViewer sv = (ScrollViewer)((Grid)mdiChild.Container.Content).Children[1];
sv.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto;
sv.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;
if (mdiChild.Buttons != null)
{
mdiChild.Buttons.Children.Clear();
}
try
{
mdiChild.buttonsPanel.Children.Add(mdiChild.minimizeButton);
mdiChild.buttonsPanel.Children.Add(mdiChild.maximizeButton);
mdiChild.buttonsPanel.Children.Add(mdiChild.closeButton);
}
catch { }
}
if (previousWindowState == WindowState.Minimized)
{
mdiChild.minimizedPosition = mdiChild.Position;
}
switch (windowState)
{
case WindowState.Normal:
{
mdiChild.Position = new Point(mdiChild.originalDimension.X, mdiChild.originalDimension.Y);
if (mdiChild._minimizedWidth > 0 && mdiChild._minimizedHeight > 0)
{
mdiChild.MinWidth = mdiChild._minimizedWidth;
mdiChild.MinHeight = mdiChild._minimizedHeight;
}
mdiChild.Width = mdiChild.originalDimension.Width;
mdiChild.Height = mdiChild.originalDimension.Height;
}
break;
case WindowState.Minimized:
{
if (previousWindowState == WindowState.Normal)
{
mdiChild.originalDimension = new Rect(mdiChild.Position.X, mdiChild.Position.Y, mdiChild.ActualWidth, mdiChild.ActualHeight);
}
//double newLeft, newTop;
//if (mdiChild.minimizedPosition.X >= 0 || mdiChild.minimizedPosition.Y >= 0)
//{
// newLeft = mdiChild.minimizedPosition.X;
// newTop = mdiChild.minimizedPosition.Y;
//}
//else
//{
// int minimizedWindows = 0;
// for (int i = 0; i < mdiChild.Container.Children.Count; i++)
// if (mdiChild.Container.Children[i] != mdiChild && mdiChild.Container.Children[i].WindowState == WindowState.Minimized)
// minimizedWindows++;
// int capacity = Convert.ToInt32(mdiChild.Container.InnerWidth) / mdiChild.MinimizedWidth,
// row = minimizedWindows / capacity + 1,
// col = minimizedWindows % capacity;
// newTop = mdiChild.Container.InnerHeight - mdiChild.MinimizedHeight * row;
// newLeft = mdiChild.MinimizedWidth * col;
//}
//mdiChild.Position = new Point(newLeft, newTop);
int minimizedWindows = 0;
for (int i = 0; i < mdiChild.Container.Children.Count; i++)
{
if (mdiChild.Container.Children[i] != mdiChild && mdiChild.Container.Children[i].WindowState == WindowState.Minimized)
{
minimizedWindows++;
}
}
int cols = (int)(mdiChild.Container.InnerWidth / mdiChild.MinimizedWidth);
int count = 0;
foreach (var item in mdiChild.Container.Children)
{
if (item.WindowState == WindowState.Minimized)
{
item.Position = new Point((int)(count % cols) * item.MinimizedWidth, mdiChild.Container.InnerHeight - ((int)((int)(count / cols) + 1)) * item.MinimizedHeight);
count++;
}
}
mdiChild._minimizedWidth = (int)mdiChild.MinWidth;
mdiChild._minimizedHeight = (int)mdiChild.MinHeight;
mdiChild.MinWidth = mdiChild.MinimizedWidth;
mdiChild.MinHeight = mdiChild.MinimizedHeight;
mdiChild.Width = mdiChild.MinimizedWidth;
mdiChild.Height = mdiChild.MinimizedHeight;
}
break;
case WindowState.Maximized:
{
if (previousWindowState == WindowState.Normal)
{
mdiChild.originalDimension = new Rect(mdiChild.Position.X, mdiChild.Position.Y, mdiChild.ActualWidth, mdiChild.ActualHeight);
}
try
{
StackPanel sp = new StackPanel {
Orientation = Orientation.Horizontal
};
mdiChild.Buttons = sp;
if (mdiChild.Container.Theme != ThemeType.Metro)
{
if (mdiChild.buttonsPanel != null)
{
mdiChild.buttonsPanel.Children.Clear();
}
sp.Children.Add(mdiChild.minimizeButton);
sp.Children.Add(mdiChild.maximizeButton);
sp.Children.Add(mdiChild.closeButton);
}
}
catch { }
mdiChild.Position = new Point(0, 0);
if (mdiChild._minimizedWidth > 0 && mdiChild._minimizedHeight > 0)
{
mdiChild.MinWidth = mdiChild._minimizedWidth;
mdiChild.MinHeight = mdiChild._minimizedHeight;
}
mdiChild.Width = mdiChild.Container.InnerWidth;
mdiChild.Height = mdiChild.Container.InnerHeight;
if (mdiChild.Container.AllowWindowStateMax)
{
MdiContainer mdiContainer = mdiChild.Container;
mdiContainer.AllowWindowStateMax = false;
for (int i = 0; i < mdiContainer.Children.Count; i++)
{
if (mdiContainer.Children[i] != mdiChild)
{
if (mdiContainer.Children[i].WindowState == WindowState.Normal &&
mdiContainer.Children[i].MaximizeBox)
{
mdiContainer.Children[i].WindowState = WindowState.Maximized;
}
else if (mdiContainer.Children[i].WindowState == WindowState.Maximized)
{
mdiContainer.Children[i].Height = mdiContainer.InnerHeight;
}
}
}
ScrollViewer sv = (ScrollViewer)((Grid)mdiContainer.Content).Children[1];
sv.HorizontalScrollBarVisibility = ScrollBarVisibility.Hidden;
sv.VerticalScrollBarVisibility = ScrollBarVisibility.Hidden;
mdiChild.Focus();
mdiContainer.InvalidateSize();
mdiContainer.AllowWindowStateMax = true;
}
}
break;
}
mdiChild.RaiseEvent(new RoutedEventArgs(WindowStateChangedEvent));
}