/// <summary>
/// Initializes a new instance of the WindowsFormsHost class.
/// </summary>
public WindowsFormsHost()
: base()
{
this._hostContainerInternal = new WinFormsAdapter(this);
_propertyMap = new WindowsFormsHostPropertyMap(this);
}
/// <summary>
/// Translator for individual property
/// </summary>
private void ForegroundPropertyTranslator(object host, string propertyName, object value)
{
SWM.Brush brush = value as SWM.Brush;
if (brush != null)
{
bool defined;
SD.Color wfColor = WindowsFormsHostPropertyMap.TranslateSolidOrGradientBrush(brush, out defined);
if (defined)
{
WinFormsAdapter adapter = GetAdapter(host);
if (adapter != null)
{
adapter.ForeColor = wfColor;
}
}
}
}
internal static SD.Bitmap GetBitmapForTransparentWindowsFormsHost(WindowsFormsHost host)
{
WinFormsAdapter adapter = WindowsFormsHostPropertyMap.GetAdapter(host);
if (adapter == null)
{
return(null);
}
//We need to find our highest-level ancestor that's a FrameworkElement:
//if it's not a FrameworkElement, we don't know how big it is, and can't
//properly deal with it.
FrameworkElement frameworkElementAncestor = GetFrameworkElementAncestor(host);
if (frameworkElementAncestor != null)
{
RenderTargetBitmap bmp = GetBitmapForFrameworkElement(frameworkElementAncestor);
Point hostPoint = new Point(0, 0);
Point parentPoint = new Point(0, 0);
if (HostUtils.IsRotated(host))
{
//Image is upside down. Need the lower right corner of host and the
//lower right corner of the parent.
hostPoint = HostUtils.TransformToParentPoint(host, frameworkElementAncestor,
new Point(host.ActualWidth, host.ActualHeight));
parentPoint = HostUtils.TransformToParentPoint(frameworkElementAncestor, frameworkElementAncestor,
new Point(frameworkElementAncestor.ActualWidth, frameworkElementAncestor.ActualHeight));
}
else
{
//Need upper left corner of host and the upper left corner of the parent.
hostPoint = HostUtils.TransformToParentPoint(host, frameworkElementAncestor,
new Point(0, 0));
parentPoint = HostUtils.TransformToParentPoint(frameworkElementAncestor, frameworkElementAncestor,
new Point(0, 0));
}
hostPoint.Offset(-parentPoint.X, -parentPoint.Y);
return(GetBitmapFromRenderTargetBitmap(adapter, bmp, hostPoint));
}
return(null);
}
internal static SD.Bitmap GetBitmapForOpaqueWindowsFormsHost(WindowsFormsHost host, Brush brush)
{
WinFormsAdapter adapter = WindowsFormsHostPropertyMap.GetAdapter(host);
if (adapter == null)
{
return(null);
}
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawRectangle(brush, null, new Rect(0, 0, adapter.Width, adapter.Height));
drawingContext.Close();
RenderTargetBitmap bmp = GetRenderTargetBitmapForVisual(adapter.Width, adapter.Height, drawingVisual);
return(GetBitmapFromRenderTargetBitmap(adapter, bmp, new Point(0, 0)));
}
private void BackgroundPropertyTranslator(object host, string propertyName, object value)
{
SWM.Brush brush = value as SWM.Brush;
if (value == null)
{
//If they passed null (not to be confused with "passed us a non-null non-Brush"),
//we should look up our parent chain.
DependencyObject parent = host as WindowsFormsHost;
do
{
brush = (Brush)parent.GetValue(SWC.Control.BackgroundProperty);
parent = VisualTreeHelper.GetParent(parent);
} while (parent != null && brush == null);
}
WinFormsAdapter adapter = GetAdapter(host);
if (adapter != null && brush != null)
{
WindowsFormsHost windowsFormsHost = host as WindowsFormsHost;
if (windowsFormsHost != null)
{
SWF.Control child = windowsFormsHost.Child;
if (HostUtils.BrushIsSolidOpaque(brush))
{
bool ignore;
SD.Color wfColor = WindowsFormsHostPropertyMap.TranslateSolidOrGradientBrush(brush, out ignore);
adapter.BackColor = wfColor;
}
else
{
SD.Bitmap backgroundImage = HostUtils.GetBitmapForWindowsFormsHost(windowsFormsHost, brush);
HostUtils.SetBackgroundImage(adapter, child, backgroundImage);
}
}
}
}