/// <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 ScrollViewer).ActualHeight-(popup.Child as FrameworkElement).Margin.Bottom), PopupPrimaryAxis.None),
};
}
}
return null;
}
/// <summary>
/// Returns screen workarea in witch control is placed
/// </summary>
/// <param name="control">Control</param>
/// <returns>Workarea in witch control is placed</returns>
public static Rect GetControlWorkArea(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.Work.Left, monitorInfo.Work.Top, monitorInfo.Work.Right - monitorInfo.Work.Left, monitorInfo.Work.Bottom - monitorInfo.Work.Top);
}
return new Rect();
}
private void SetRoundingRegion(NativeMethods.WINDOWPOS? wp)
{
const int MONITOR_DEFAULTTONEAREST = 0x00000002;
// We're early - WPF hasn't necessarily updated the state of the window.
// Need to query it ourselves.
NativeMethods.WINDOWPLACEMENT wpl = new NativeMethods.WINDOWPLACEMENT();
NativeMethods.GetWindowPlacement(handle, wpl);
if (wpl.showCmd == NativeMethods.SW_SHOWMAXIMIZED && IsDwmEnabled == true)
{
int left;
int top;
if (wp.HasValue)
{
left = wp.Value.x;
top = wp.Value.y;
}
else
{
NativeMethods.Rect r = new NativeMethods.Rect();
NativeMethods.GetWindowRect(handle, ref r);
left = r.Left;
top = r.Top;
}
IntPtr hMon = NativeMethods.MonitorFromWindow(handle, MONITOR_DEFAULTTONEAREST);
NativeMethods.MonitorInfo mi = new NativeMethods.MonitorInfo();
NativeMethods.GetMonitorInfo(hMon, mi);
NativeMethods.Rect rcMax = mi.Work;
// The location of maximized window takes into account the border that Windows was
// going to remove, so we also need to consider it.
rcMax.Left -= left; rcMax.Right -= left;
rcMax.Top -= top; rcMax.Bottom -= top;
IntPtr hrgn = IntPtr.Zero;
try
{
hrgn = NativeMethods.CreateRectRgnIndirect(ref rcMax);
NativeMethods.SetWindowRgn(handle, hrgn, NativeMethods.IsWindowVisible(handle));
hrgn = IntPtr.Zero;
}
finally
{
NativeMethods.DeleteObject(hrgn);
}
}
else
{
Size windowSize;
// Use the size if it's specified.
if (null != wp && !IsFlagSet(wp.Value.flags, NativeMethods.SWP_NOSIZE))
{
windowSize = new Size((double)wp.Value.cx, (double)wp.Value.cy);
}
else if (null != wp && (lastRoundingState == WindowState))
{
return;
}
else
{
NativeMethods.Rect r = new NativeMethods.Rect();
NativeMethods.GetWindowRect(handle, ref r);
Rect rect = new Rect(r.Left, r.Top, r.Right - r.Left, r.Bottom - r.Top);
windowSize = rect.Size;
}
lastRoundingState = WindowState;
IntPtr hrgn = IntPtr.Zero;
try
{
double shortestDimension = Math.Min(windowSize.Width, windowSize.Height);
double topLeftRadius = DpiHelper.LogicalPixelsToDevice(new Point(CornerRadius.TopLeft, 0)).X;
topLeftRadius = Math.Min(topLeftRadius, shortestDimension / 2);
if (IsUniform(CornerRadius))
{
// RoundedRect HRGNs require an additional pixel of padding.
hrgn = CreateRoundRectRgn(new Rect(windowSize), topLeftRadius);
}
else
{
// We need to combine HRGNs for each of the corners.
// Create one for each quadrant, but let it overlap into the two adjacent ones
// by the radius amount to ensure that there aren't corners etched into the middle
// of the window.
hrgn = CreateRoundRectRgn(new Rect(0, 0, windowSize.Width / 2 + topLeftRadius, windowSize.Height / 2 + topLeftRadius), topLeftRadius);
double topRightRadius = DpiHelper.LogicalPixelsToDevice(new Point(CornerRadius.TopRight, 0)).X;
topRightRadius = Math.Min(topRightRadius, shortestDimension / 2);
Rect topRightRegionRect = new Rect(0, 0, windowSize.Width / 2 + topRightRadius, windowSize.Height / 2 + topRightRadius);
topRightRegionRect.Offset(windowSize.Width / 2 - topRightRadius, 0);
CreateAndCombineRoundRectRgn(hrgn, topRightRegionRect, topRightRadius);
double bottomLeftRadius = /*DpiHelper.LogicalPixelsToDevice*/(new Point(CornerRadius.BottomLeft, 0)).X;
bottomLeftRadius = Math.Min(bottomLeftRadius, shortestDimension / 2);
Rect bottomLeftRegionRect = new Rect(0, 0, windowSize.Width / 2 + bottomLeftRadius, windowSize.Height / 2 + bottomLeftRadius);
bottomLeftRegionRect.Offset(0, windowSize.Height / 2 - bottomLeftRadius);
CreateAndCombineRoundRectRgn(hrgn, bottomLeftRegionRect, bottomLeftRadius);
double bottomRightRadius = DpiHelper.LogicalPixelsToDevice(new Point(CornerRadius.BottomRight, 0)).X;
bottomRightRadius = Math.Min(bottomRightRadius, shortestDimension / 2);
Rect bottomRightRegionRect = new Rect(0, 0, windowSize.Width / 2 + bottomRightRadius, windowSize.Height / 2 + bottomRightRadius);
bottomRightRegionRect.Offset(windowSize.Width / 2 - bottomRightRadius, windowSize.Height / 2 - bottomRightRadius);
CreateAndCombineRoundRectRgn(hrgn, bottomRightRegionRect, bottomRightRadius);
}
NativeMethods.SetWindowRgn(handle, hrgn, NativeMethods.IsWindowVisible(handle));
hrgn = IntPtr.Zero;
}
finally
{
// Free the memory associated with the HRGN if it wasn't assigned to the HWND.
NativeMethods.DeleteObject(hrgn);
}
}
}
/// <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
this.DropDownPopup.Width = 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;
}
