/// <summary>
/// Initiate an opening animation
/// </summary>
void OpenWidthAnimation()
{
double wnd_Width = this._targetWidth > 0.0 ? this._targetWidth : this.ActualWidth;
double wnd_Height = this._targetHeight > 0.0 ? this._targetHeight : this.ActualHeight;
double wnd_Left = this.Left;
double wnd_Top = this.Top;
int wnd_TrimWidth = 0;
int wnd_TrimHeight = 0;
int stepWidth = (int)(wnd_Width / 4);
int stepHeight = (int)(wnd_Height / 4);
if (CorrectedAnchor == AnchorStyle.Left)
{
InteropHelper.SetWindowRgn(new WindowInteropHelper(this).Handle, InteropHelper.CreateRectRgn(0, 0, 0, (int)wnd_Height - wnd_TrimHeight), true);
this.Left = wnd_Left - wnd_Width;
}
else if (CorrectedAnchor == AnchorStyle.Top)
{
InteropHelper.SetWindowRgn(new WindowInteropHelper(this).Handle, InteropHelper.CreateRectRgn(0, 0, (int)wnd_Width - wnd_TrimWidth, 0), true);
this.Top = wnd_Top - wnd_Height;
}
DispatcherTimer animTimer = new DispatcherTimer();
animTimer.Interval = TimeSpan.FromMilliseconds(1);
animTimer.Tick += (sender, eventArgs) =>
{
bool stopTimer = false;
switch (CorrectedAnchor)
{
case AnchorStyle.Right:
{
double newLeft = this.Left;
if (this.Left - stepWidth <= wnd_Left - wnd_Width)
{
newLeft = wnd_Left - wnd_Width;
wnd_TrimWidth = (int)wnd_Width;
stopTimer = true;
}
else
{
newLeft -= stepWidth;
wnd_TrimWidth += stepWidth;
}
Width = _targetWidth;
this.Left = newLeft;
ApplyRegion(new Rect(0, 0, wnd_TrimWidth, (int)wnd_Height - wnd_TrimHeight));
}
break;
case AnchorStyle.Left:
{
double newLeft = this.Left;
if (this.Left + stepWidth >= wnd_Left)
{
newLeft = wnd_Left;
wnd_TrimWidth = (int)wnd_Width;
stopTimer = true;
}
else
{
newLeft += stepWidth;
wnd_TrimWidth += stepWidth;
}
ApplyRegion(
new Rect((int)(wnd_Left - this.Left), 0, (int)(wnd_Width), (int)wnd_Height - wnd_TrimHeight));
Width = _targetWidth;
this.Left = newLeft;
}
break;
case AnchorStyle.Bottom:
{
double newTop = this.Top;
if (this.Top - stepHeight <= wnd_Top - wnd_Height)
{
newTop = wnd_Top - wnd_Height;
wnd_TrimHeight = (int)wnd_Height;
stopTimer = true;
}
else
{
newTop -= stepHeight;
wnd_TrimHeight += stepHeight;
}
ApplyRegion(
new Rect(0, 0, (int)wnd_Width - wnd_TrimWidth, wnd_TrimHeight));
Height = _targetHeight;
this.Top = newTop;
}
break;
case AnchorStyle.Top:
{
double newTop = this.Top;
if (this.Top + stepHeight >= wnd_Top)
{
newTop = wnd_Top;
wnd_TrimHeight = (int)wnd_Height;
stopTimer = true;
}
else
{
newTop += stepHeight;
wnd_TrimHeight += stepHeight;
}
ApplyRegion(
new Rect(0, (int)(wnd_Top - this.Top), (int)wnd_Width - wnd_TrimWidth, (int)(wnd_Height)));
Height = _targetHeight;
this.Top = newTop;
}
break;
}
if (stopTimer)
{
UpdatePositionAndSize();
animTimer.Stop();
IsOpening = false;
}
};
IsOpening = true;
animTimer.Start();
}
void ApplyRegion(Rect wndRect)
{
if (!this.CanTransform())
{
return;
}
wndRect = new Rect(
this.TransformFromDeviceDPI(wndRect.TopLeft),
this.TransformFromDeviceDPI(wndRect.Size));
_lastApplyRect = wndRect;
if (PresentationSource.FromVisual(this) == null)
{
return;
}
if (_dockingManager != null)
{
List <Rect> otherRects = new List <Rect>();
foreach (Window fl in Window.GetWindow(_dockingManager).OwnedWindows)
{
//not with myself!
if (fl == this)
{
continue;
}
if (!fl.IsVisible)
{
continue;
}
//Issue 11545, thx to SrdjanPolic
Rect flRect = new Rect(
PointFromScreen(new Point(fl.Left, fl.Top)),
PointFromScreen(new Point(fl.Left + fl.RestoreBounds.Width, fl.Top + fl.RestoreBounds.Height)));
if (flRect.IntersectsWith(wndRect) && fl.AllowsTransparency == false)
{
otherRects.Add(Rect.Intersect(flRect, wndRect));
}
//Rect flRect = new Rect(
// PointFromScreen(new Point(fl.Left, fl.Top)),
// PointFromScreen(new Point(fl.Left + fl.Width, fl.Top + fl.Height)));
//if (flRect.IntersectsWith(wndRect))
// otherRects.Add(Rect.Intersect(flRect, wndRect));
}
IntPtr hDestRegn = InteropHelper.CreateRectRgn(
(int)wndRect.Left,
(int)wndRect.Top,
(int)wndRect.Right,
(int)wndRect.Bottom);
foreach (Rect otherRect in otherRects)
{
IntPtr otherWin32Rect = InteropHelper.CreateRectRgn(
(int)otherRect.Left,
(int)otherRect.Top,
(int)otherRect.Right,
(int)otherRect.Bottom);
InteropHelper.CombineRgn(hDestRegn, hDestRegn, otherWin32Rect, (int)InteropHelper.CombineRgnStyles.RGN_DIFF);
}
InteropHelper.SetWindowRgn(new WindowInteropHelper(this).Handle, hDestRegn, true);
}
}
private void ApplyRegion(Rect wndRect)
{
if (!this.CanTransform())
{
return;
}
wndRect = new Rect(
this.TransformFromDeviceDPI(wndRect.TopLeft),
this.TransformFromDeviceDPI(wndRect.Size));
_lastApplyRect = wndRect;
if (PresentationSource.FromVisual(this) == null)
{
return;
}
if (_dockingManager != null)
{
var otherRects = new List <Rect>();
foreach (Window fl in GetWindow(_dockingManager).OwnedWindows)
{
//not with myself!
if (fl == this)
{
continue;
}
if (!fl.IsVisible)
{
continue;
}
var flRect = new Rect(
PointFromScreen(new Point(fl.Left, fl.Top)),
PointFromScreen(new Point(fl.Left + fl.Width, fl.Top + fl.Height)));
if (flRect.IntersectsWith(wndRect))
{
otherRects.Add(Rect.Intersect(flRect, wndRect));
}
}
var hDestRegn = InteropHelper.CreateRectRgn(
(int)wndRect.Left,
(int)wndRect.Top,
(int)wndRect.Right,
(int)wndRect.Bottom);
foreach (var otherRect in otherRects)
{
var otherWin32Rect = InteropHelper.CreateRectRgn(
(int)otherRect.Left,
(int)otherRect.Top,
(int)otherRect.Right,
(int)otherRect.Bottom);
InteropHelper.CombineRgn(hDestRegn, hDestRegn, otherWin32Rect,
(int)InteropHelper.CombineRgnStyles.RGN_DIFF);
}
InteropHelper.SetWindowRgn(new WindowInteropHelper(this).Handle, hDestRegn, true);
}
}