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public static GetControlMonitor ( |
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| control | Control | |
| Résultat | ||
// Handles resize both drag
private void OnResizeBothDelta(object sender, DragDeltaEventArgs e)
{
// Set height
SetDragHeight(e);
// Set width
menuPanel.Width = Double.NaN;
if (Double.IsNaN(galleryPanel.Width))
{
galleryPanel.Width = galleryPanel.ActualWidth;
}
double monitorRight = RibbonControl.GetControlMonitor(this).Right;
FrameworkElement popupChild = popup.Child as FrameworkElement;
double delta = monitorRight - this.PointToScreen(new Point()).X - popupChild.ActualWidth - e.HorizontalChange;
double deltaX = popupChild.ActualWidth - galleryPanel.ActualWidth;
double deltaBorders = dropDownBorder.ActualWidth - galleryPanel.ActualWidth;
if (delta > 0)
{
galleryPanel.Width = Math.Max(galleryPanel.Width + e.HorizontalChange, ActualWidth - deltaBorders);
}
else
{
galleryPanel.Width = Math.Max(monitorRight - this.PointToScreen(new Point()).X - deltaX, ActualWidth - deltaBorders);
}
}
// Handles resize both drag
private void OnResizeBothDelta(object sender, DragDeltaEventArgs e)
{
// Set height
this.SetDragHeight(e);
// Set width
this.menuPanel.Width = double.NaN;
if (double.IsNaN(this.galleryPanel.Width))
{
this.galleryPanel.Width = this.galleryPanel.ActualWidth;
}
var monitorRight = RibbonControl.GetControlMonitor(this).Right;
var popupChild = this.DropDownPopup.Child as FrameworkElement;
var delta = monitorRight - this.PointToScreen(new Point()).X - popupChild.ActualWidth - e.HorizontalChange;
var deltaX = popupChild.ActualWidth - this.galleryPanel.ActualWidth;
var deltaBorders = this.dropDownBorder.ActualWidth - this.galleryPanel.ActualWidth;
if (delta > 0)
{
this.galleryPanel.Width = Math.Max(0, Math.Max(this.galleryPanel.Width + e.HorizontalChange, this.ActualWidth - deltaBorders));
}
else
{
this.galleryPanel.Width = Math.Max(0, Math.Max(monitorRight - this.PointToScreen(new Point()).X - deltaX, this.ActualWidth - deltaBorders));
}
}
private void SetDragHeight(DragDeltaEventArgs e)
{
if (!canSizeY)
{
return;
}
if (double.IsNaN(scrollViewer.Height))
{
scrollViewer.Height = scrollViewer.ActualHeight;
}
if (ShowPopupOnTop)
{
var monitorTop = RibbonControl.GetControlMonitor(this).Top;
// Calc shadow height
var delta = this.PointToScreen(new Point()).Y - dropDownBorder.ActualHeight - e.VerticalChange - monitorTop;
if (delta > 0)
{
scrollViewer.Height = Math.Max(0,
Math.Min(Math.Max(galleryPanel.GetItemSize().Height, scrollViewer.Height + e.VerticalChange),
MaxDropDownHeight));
}
else
{
delta = this.PointToScreen(new Point()).Y - dropDownBorder.ActualHeight - monitorTop;
scrollViewer.Height = Math.Max(0,
Math.Min(Math.Max(galleryPanel.GetItemSize().Height, scrollViewer.Height + delta),
MaxDropDownHeight));
}
}
else
{
var monitorBottom = RibbonControl.GetControlMonitor(this).Bottom;
var popupChild = popup.Child as FrameworkElement;
var delta = monitorBottom - this.PointToScreen(new Point()).Y - ActualHeight - popupChild.ActualHeight - e.VerticalChange;
if (delta > 0)
{
scrollViewer.Height = Math.Max(0,
Math.Min(Math.Max(galleryPanel.GetItemSize().Height, scrollViewer.Height + e.VerticalChange),
MaxDropDownHeight));
}
else
{
delta = monitorBottom - this.PointToScreen(new Point()).Y - ActualHeight - popupChild.ActualHeight;
scrollViewer.Height = Math.Max(0,
Math.Min(Math.Max(galleryPanel.GetItemSize().Height, scrollViewer.Height + delta),
MaxDropDownHeight));
}
}
}
// Handles resize both drag
private void OnResizeBothDelta(object sender, DragDeltaEventArgs e)
{
// Set height
this.SetDragHeight(e);
// Set width
this.menuPanel.Width = double.NaN;
if (double.IsNaN(this.scrollViewer.Width))
{
this.scrollViewer.Width = this.scrollViewer.ActualWidth;
}
var monitorRight = RibbonControl.GetControlMonitor(this).Right;
var popupChild = this.DropDownPopup.Child as FrameworkElement;
if (popupChild == null)
{
return;
}
var delta = monitorRight - this.PointToScreen(default).X - popupChild.ActualWidth - e.HorizontalChange;
/// <summary>
/// Implements custom placement for ribbon popup
/// </summary>
/// <param name="popupsize"></param>
/// <param name="targetsize"></param>
/// <param name="offset"></param>
/// <returns></returns>
CustomPopupPlacement[] CustomPopupPlacementMethod(Size popupsize, Size targetsize, Point offset)
{
if (popup != null)
{
Rect monitorRect = RibbonControl.GetControlMonitor(this);
Point pos = PointToScreen(new Point());
if (ShowPopupOnTop)
{
return(new CustomPopupPlacement[]
{
new CustomPopupPlacement(new Point(0, -dropDownBorder.ActualHeight), PopupPrimaryAxis.Horizontal),
});
}
else
{
return(new CustomPopupPlacement[]
{
new CustomPopupPlacement(new Point(0, ActualHeight), PopupPrimaryAxis.Horizontal),
});
}
}
return(null);
}
/// <summary>
/// Reports when a combo box's popup opens.
/// </summary>
/// <param name="e">The event data for the <see cref="E:System.Windows.Controls.ComboBox.DropDownOpened" /> event.</param>
protected override void OnDropDownOpened(EventArgs e)
{
base.OnDropDownOpened(e);
Mouse.Capture(this, CaptureMode.SubTree);
if (this.SelectedItem != null)
{
Keyboard.Focus(this.ItemContainerGenerator.ContainerFromItem(this.SelectedItem) as IInputElement);
}
this.focusedElement = Keyboard.FocusedElement;
if (this.focusedElement != null)
{
this.focusedElement.LostKeyboardFocus += this.OnFocusedElementLostKeyboardFocus;
}
this.canSizeY = true;
this.galleryPanel.Width = double.NaN;
this.scrollViewer.Height = double.NaN;
var popupChild = this.DropDownPopup.Child as FrameworkElement;
var heightDelta = popupChild.DesiredSize.Height - this.scrollViewer.DesiredSize.Height;
var initialHeight = Math.Min(RibbonControl.GetControlWorkArea(this).Height * 2 / 3, this.MaxDropDownHeight);
if (double.IsNaN(this.DropDownHeight) == false)
{
initialHeight = Math.Min(this.DropDownHeight, this.MaxDropDownHeight);
}
if (this.scrollViewer.DesiredSize.Height > initialHeight)
{
this.scrollViewer.Height = initialHeight;
}
else
{
initialHeight = this.scrollViewer.DesiredSize.Height;
}
var monitor = RibbonControl.GetControlMonitor(this);
var delta = monitor.Bottom - this.PointToScreen(new Point()).Y - this.ActualHeight - initialHeight - heightDelta;
if (delta >= 0)
{
this.ShowPopupOnTop = false;
}
else
{
var deltaTop = this.PointToScreen(new Point()).Y - initialHeight - heightDelta - monitor.Top;
if (deltaTop > delta)
{
this.ShowPopupOnTop = true;
}
else
{
this.ShowPopupOnTop = false;
}
if (deltaTop < 0)
{
delta = Math.Max(Math.Abs(delta), Math.Abs(deltaTop));
if (delta > this.galleryPanel.GetItemSize().Height)
{
this.scrollViewer.Height = delta;
}
else
{
this.canSizeY = false;
this.scrollViewer.Height = this.galleryPanel.GetItemSize().Height;
}
}
}
popupChild.UpdateLayout();
}
/// <summary>
/// Reports when a combo box's popup opens.
/// </summary>
/// <param name="e">The event data for the <see cref="E:System.Windows.Controls.ComboBox.DropDownOpened"/> event.</param>
protected override void OnDropDownOpened(EventArgs e)
{
base.OnDropDownOpened(e);
Mouse.Capture(this, CaptureMode.SubTree);
if (SelectedItem != null)
{
Keyboard.Focus(ItemContainerGenerator.ContainerFromItem(SelectedItem) as IInputElement);
}
focusedElement = Keyboard.FocusedElement;
focusedElement.LostKeyboardFocus += OnFocusedElementLostKeyboardFocus;
canSizeX = true;
canSizeY = true;
galleryPanel.Width = double.NaN;
scrollViewer.Height = double.NaN;
FrameworkElement popupChild = popup.Child as FrameworkElement;
scrollViewer.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
popupChild.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
popup.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
double heightDelta = popupChild.DesiredSize.Height - scrollViewer.DesiredSize.Height;
double initialHeight = Math.Min(RibbonControl.GetControlWorkArea(this).Height * 2 / 3, MaxDropDownHeight);
if (!double.IsNaN(DropDownHeight))
{
initialHeight = Math.Min(DropDownHeight, MaxDropDownHeight);
}
if (scrollViewer.DesiredSize.Height > initialHeight)
{
scrollViewer.Height = initialHeight;
}
else
{
initialHeight = scrollViewer.DesiredSize.Height;
}
Rect monitor = RibbonControl.GetControlMonitor(this);
double delta = monitor.Bottom - this.PointToScreen(new Point()).Y - ActualHeight - initialHeight - heightDelta;
if (delta >= 0)
{
ShowPopupOnTop = false;
}
else
{
double deltaTop = this.PointToScreen(new Point()).Y - initialHeight - heightDelta - monitor.Top;
if (deltaTop > delta)
{
ShowPopupOnTop = true;
}
else
{
ShowPopupOnTop = false;
}
if (deltaTop < 0)
{
delta = Math.Max(Math.Abs(delta), Math.Abs(deltaTop));
if (delta > galleryPanel.GetItemSize().Height)
{
scrollViewer.Height = delta;
}
else
{
canSizeY = false;
scrollViewer.Height = galleryPanel.GetItemSize().Height;
}
}
}
popupChild.UpdateLayout();
}