protected virtual NativeMethods.MonitorInfo GetMonitorInfo()
{
var monitorHandle = NativeMethods.GetCurrentMonitor();
var monitorInfo = new NativeMethods.MonitorInfo();
NativeMethods.GetMonitorInfo(monitorHandle, monitorInfo);
return(monitorInfo);
}
/// <summary>
/// Implements custom placement for ribbon popup
/// </summary>
/// <param name="popupsize"></param>
/// <param name="targetsize"></param>
/// <param name="offset"></param>
/// <returns></returns>
private CustomPopupPlacement[] CustomPopupPlacementMethod(Size popupsize, Size targetsize, Point offset)
{
if (this.DropDownPopup != null &&
this.SelectedTabItem != null)
{
// Get current workarea
var tabItemPos = this.SelectedTabItem.PointToScreen(new Point(0, 0));
var tabItemRect = new NativeMethods.Rect
{
Left = (int)tabItemPos.X,
Top = (int)tabItemPos.Y,
Right = (int)tabItemPos.X + (int)this.SelectedTabItem.ActualWidth,
Bottom = (int)tabItemPos.Y + (int)this.SelectedTabItem.ActualHeight
};
const uint MONITOR_DEFAULTTONEAREST = 0x00000002;
var monitor = NativeMethods.MonitorFromRect(ref tabItemRect, MONITOR_DEFAULTTONEAREST);
if (monitor != IntPtr.Zero)
{
var monitorInfo = new NativeMethods.MonitorInfo();
monitorInfo.Size = Marshal.SizeOf(monitorInfo);
NativeMethods.GetMonitorInfo(monitor, monitorInfo);
var startPoint = this.PointToScreen(new Point(0, 0));
if (this.FlowDirection == FlowDirection.RightToLeft)
{
startPoint.X -= this.ActualWidth;
}
var inWindowRibbonWidth = monitorInfo.Work.Right - Math.Max(monitorInfo.Work.Left, startPoint.X);
var actualWidth = this.ActualWidth;
if (startPoint.X < monitorInfo.Work.Left)
{
actualWidth -= monitorInfo.Work.Left - startPoint.X;
startPoint.X = monitorInfo.Work.Left;
}
// Set width and prevent negative values
this.DropDownPopup.Width = Math.Max(0, Math.Min(actualWidth, inWindowRibbonWidth));
return(new[]
{
new CustomPopupPlacement(new Point(startPoint.X - tabItemPos.X, this.SelectedTabItem.ActualHeight - ((FrameworkElement)this.DropDownPopup.Child).Margin.Top), PopupPrimaryAxis.None),
new CustomPopupPlacement(new Point(startPoint.X - tabItemPos.X, -((ScrollViewer)this.SelectedContent).ActualHeight - ((FrameworkElement)this.DropDownPopup.Child).Margin.Bottom), PopupPrimaryAxis.None)
});
}
}
return(null);
}
/// <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) && (SelectedTabItem != null))
{
// Get current workarea
Point tabItemPos = SelectedTabItem.PointToScreen(new Point(0, 0));
NativeMethods.Rect tabItemRect = new NativeMethods.Rect();
tabItemRect.Left = (int)tabItemPos.X;
tabItemRect.Top = (int)tabItemPos.Y;
tabItemRect.Right = (int)tabItemPos.X + (int)SelectedTabItem.ActualWidth;
tabItemRect.Bottom = (int)tabItemPos.Y + (int)SelectedTabItem.ActualHeight;
uint MONITOR_DEFAULTTONEAREST = 0x00000002;
System.IntPtr monitor = NativeMethods.MonitorFromRect(ref tabItemRect, MONITOR_DEFAULTTONEAREST);
if (monitor != System.IntPtr.Zero)
{
NativeMethods.MonitorInfo monitorInfo = new NativeMethods.MonitorInfo();
monitorInfo.Size = Marshal.SizeOf(monitorInfo);
NativeMethods.GetMonitorInfo(monitor, monitorInfo);
Point startPoint = PointToScreen(new Point(0, 0));
if (FlowDirection == FlowDirection.RightToLeft)
{
startPoint.X -= ActualWidth;
}
double inWindowRibbonWidth = monitorInfo.Work.Right - Math.Max(monitorInfo.Work.Left, startPoint.X);
double actualWidth = ActualWidth;
if (startPoint.X < monitorInfo.Work.Left)
{
actualWidth -= monitorInfo.Work.Left - startPoint.X;
startPoint.X = monitorInfo.Work.Left;
}
// Set width
popup.Width = Math.Min(actualWidth, inWindowRibbonWidth);
return(new CustomPopupPlacement[]
{
new CustomPopupPlacement(new Point(startPoint.X - tabItemPos.X, SelectedTabItem.ActualHeight - (popup.Child as FrameworkElement).Margin.Top), PopupPrimaryAxis.None),
new CustomPopupPlacement(new Point(startPoint.X - tabItemPos.X, -(SelectedContent as RibbonGroupsContainer).ActualHeight - (popup.Child as FrameworkElement).Margin.Bottom), PopupPrimaryAxis.None),
});
}
}
return(null);
}
/// <summary>
/// Returns monitor in witch control is placed
/// </summary>
/// <param name="control">Control</param>
/// <returns>Workarea in witch control is placed</returns>
public static Rect GetControlMonitor(FrameworkElement control)
{
Point tabItemPos = control.PointToScreen(new Point(0, 0));
NativeMethods.Rect tabItemRect = new NativeMethods.Rect();
tabItemRect.Left = (int)tabItemPos.X;
tabItemRect.Top = (int)tabItemPos.Y;
tabItemRect.Right = (int)tabItemPos.X + (int)control.ActualWidth;
tabItemRect.Bottom = (int)tabItemPos.Y + (int)control.ActualHeight;
uint MONITOR_DEFAULTTONEAREST = 0x00000002;
System.IntPtr monitor = NativeMethods.MonitorFromRect(ref tabItemRect, MONITOR_DEFAULTTONEAREST);
if (monitor != System.IntPtr.Zero)
{
NativeMethods.MonitorInfo monitorInfo = new NativeMethods.MonitorInfo();
monitorInfo.Size = Marshal.SizeOf(monitorInfo);
NativeMethods.GetMonitorInfo(monitor, monitorInfo);
return(new Rect(monitorInfo.Monitor.Left, monitorInfo.Monitor.Top, monitorInfo.Monitor.Right - monitorInfo.Monitor.Left, monitorInfo.Monitor.Bottom - monitorInfo.Monitor.Top));
}
return(new Rect());
}