public RECT(RECT rcSrc)
{
this.left = rcSrc.left;
this.top = rcSrc.top;
this.right = rcSrc.right;
this.bottom = rcSrc.bottom;
}
public RECT(RECT rcSrc)
{
left = rcSrc.left;
top = rcSrc.top;
right = rcSrc.right;
bottom = rcSrc.bottom;
}
/// <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)
{
var tabItemPos = control.PointToScreen(new Point(0, 0));
var tabItemRect = new 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;
const uint MONITOR_DEFAULTTONEAREST = 0x00000002;
var monitor = NativeMethods.MonitorFromRect(ref tabItemRect, MONITOR_DEFAULTTONEAREST);
if (monitor != IntPtr.Zero)
{
var monitorInfo = new MONITORINFO();
monitorInfo.cbSize = Marshal.SizeOf(monitorInfo);
NativeMethods.GetMonitorInfo(monitor, monitorInfo);
return new Rect(monitorInfo.rcMonitor.left, monitorInfo.rcMonitor.top, monitorInfo.rcMonitor.right - monitorInfo.rcMonitor.left, monitorInfo.rcMonitor.bottom - monitorInfo.rcMonitor.top);
}
return new Rect();
}
internal static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);
private static int GetEdge(RECT rc)
{
int uEdge;
if (rc.top == rc.left
&& rc.bottom > rc.right)
{
uEdge = (int)ABEdge.ABE_LEFT;
}
else if (rc.top == rc.left
&& rc.bottom < rc.right)
{
uEdge = (int)ABEdge.ABE_TOP;
}
else if (rc.top > rc.left)
{
uEdge = (int)ABEdge.ABE_BOTTOM;
}
else
{
uEdge = (int)ABEdge.ABE_RIGHT;
}
return uEdge;
}
/// <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)
{
return null;
}
// Get current workarea
var tabItemPos = this.SelectedTabItem.PointToScreen(new Point(0, 0));
var tabItemRect = new 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)
{
return null;
}
var monitorInfo = new MONITORINFO();
monitorInfo.cbSize = Marshal.SizeOf(monitorInfo);
UnsafeNativeMethods.GetMonitorInfo(monitor, monitorInfo);
var startPoint = this.PointToScreen(new Point(0, 0));
if (this.FlowDirection == FlowDirection.RightToLeft)
{
startPoint.X -= this.ActualWidth;
}
var inWindowRibbonWidth = monitorInfo.rcWork.right - Math.Max(monitorInfo.rcWork.left, startPoint.X);
var actualWidth = this.ActualWidth;
if (startPoint.X < monitorInfo.rcWork.left)
{
actualWidth -= monitorInfo.rcWork.left - startPoint.X;
startPoint.X = monitorInfo.rcWork.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 + offset.X, targetsize.Height + offset.Y), PopupPrimaryAxis.Vertical),
new CustomPopupPlacement(new Point(startPoint.X - tabItemPos.X + offset.X, -1 * (targetsize.Height + offset.Y + ((ScrollViewer)this.SelectedContent).ActualHeight)), PopupPrimaryAxis.Vertical)
};
}
