protected override int GetTop(Dpi dpi)
{
return this.Owner.Top.DpiRoundY(dpi) - this.GetHeight(this.CurrentDpi);
}
protected override int GetWidth(Dpi dpi)
{
return this.Owner.ActualWidth.DpiRoundX(dpi) + this.Offset.Left.DpiRoundX(this.CurrentDpi) + this.Offset.Right.DpiRoundX(this.CurrentDpi);
}
protected override int GetHeight(Dpi dpi)
{
return this.GetContentSizeOrDefault(x => x.ActualHeight).DpiRoundY(dpi);
}
protected override int GetLeft(Dpi dpi)
{
return this.Owner.Left.DpiRoundX(dpi) - this.Offset.Left.DpiRoundX(this.CurrentDpi);
}
public static int DpiRoundY(this double value, Dpi dpi)
{
return (int)Math.Round(value * dpi.ScaleY, MidpointRounding.AwayFromZero);
}
public bool Equals(Dpi other)
{
return(this.X == other.X && this.Y == other.Y);
}
private void ChangeDpi(Dpi dpi)
{
if (!PerMonitorDpi.IsSupported) return;
this.DpiScaleTransform = dpi == this.systemDpi
? Transform.Identity
: new ScaleTransform((double)dpi.X / this.systemDpi.X, (double)dpi.Y / this.systemDpi.Y);
this.Width = this.Width * dpi.X / this.CurrentDpi.X;
this.Height = this.Height * dpi.Y / this.CurrentDpi.Y;
this.CurrentDpi = dpi;
}
public bool Equals(Dpi other)
{
return this.X == other.X && this.Y == other.Y;
}
protected override void OnSourceInitialized(EventArgs e)
{
base.OnSourceInitialized(e);
this.source = PresentationSource.FromVisual(this) as HwndSource;
if (this.source == null) return;
this.source.AddHook(this.WndProc);
this.systemDpi = this.GetSystemDpi() ?? Dpi.Default;
if (PerMonitorDpi.IsSupported)
{
this.CurrentDpi = this.source.GetDpi();
this.ChangeDpi(this.CurrentDpi);
}
else
{
this.CurrentDpi = this.systemDpi;
}
if (this.WindowSettings == null)
{
this.WindowSettings = new WindowSettings(this);
}
if (this.IsRestoringWindowPlacement)
{
this.WindowSettings.Reload();
if (this.WindowSettings.Placement.HasValue)
{
var placement = this.WindowSettings.Placement.Value;
placement.length = Marshal.SizeOf(typeof(WINDOWPLACEMENT));
placement.flags = 0;
placement.showCmd = placement.showCmd == ShowWindowFlags.SW_SHOWMINIMIZED ? ShowWindowFlags.SW_SHOWNORMAL : placement.showCmd;
User32.SetWindowPlacement(this.source.Handle, ref placement);
}
}
}
protected override int GetWidth(Dpi dpi)
{
return this.GetContentSizeOrDefault(x => x.ActualWidth).DpiRoundX(dpi);
}
protected override int GetTop(Dpi dpi)
{
return this.Owner.Top.DpiRoundY(dpi);
}
protected override int GetLeft(Dpi dpi)
{
return this.Owner.Left.DpiRoundX(dpi) + this.Owner.ActualWidth.DpiRoundX(dpi);
}
protected override int GetHeight(Dpi dpi)
{
return this.Owner.ActualHeight.DpiRoundY(dpi);
}
