private void FontStylePropertyTranslator(object host, string propertyName, object value)
{
WinFormsAdapter adapter = GetAdapter(host);
if (adapter != null)
{
if (value is SW.FontStyle)
{
SD.FontStyle style;
if ((SW.FontStyle)value == SW.FontStyles.Normal)
{
style = SD.FontStyle.Regular;
}
else
{
style = SD.FontStyle.Italic;
}
if (HostUtils.FontWeightIsBold(Host.FontWeight))
{
style |= SD.FontStyle.Bold;
}
adapter.Font = new SD.Font(CurrentFontFamily, CurrentFontSize, style);
}
}
}
private static double ScaleFactor(double value, Orientation orientation, double dpiScale)
{
//This is a guard against possible unset scale value (which shouldn't happen)
if (HostUtils.IsZero(value))
{
value = 1.0;
}
return(value * dpiScale);
}
private static double ScaleFactor(double value, Orientation orientation)
{
//This is a guard against possible unset scale value (which shouldn't happen)
if (HostUtils.IsZero(value))
{
value = 1.0;
}
return(value * HostUtils.PixelsPerInch(orientation) / systemWindowsPixelsPerInch);
}
private void ScaleChild()
{
bool skewed;
Vector newScale = HostUtils.GetScale(this, out skewed);
if (skewed)
{
OnLayoutError();
}
_currentScale = ScaleChild(newScale);
}
internal static bool IsRotated(Visual visual)
{
// Determine whether WindowsFormsHost is rotated
Point pOrigin = HostUtils.TransformToRootPoint(visual, new Point(0.0, 0.0));
Point pX = HostUtils.TransformToRootPoint(visual, new Point(1.0, 0.0));
Point pY = HostUtils.TransformToRootPoint(visual, new Point(0.0, 1.0));
Vector xComponent = pX - pOrigin;
Vector yComponent = pY - pOrigin;
return(xComponent.X < 0 || yComponent.Y < 0);
}
internal static Vector GetScale(Visual visual, out bool skewed)
{
// Determine whether WindowsFormsHost scaling has changed
Point pOrigin = HostUtils.TransformToRootPoint(visual, new Point(0.0, 0.0));
Point pX = HostUtils.TransformToRootPoint(visual, new Point(1.0, 0.0));
Point pY = HostUtils.TransformToRootPoint(visual, new Point(0.0, 1.0));
Vector xComponent = pX - pOrigin;
Vector yComponent = pY - pOrigin;
skewed = (!IsZero(xComponent.Y) || !IsZero(yComponent.X));
return(new Vector(xComponent.Length, yComponent.Length));
}
private void FontWeightPropertyTranslator(object host, string propertyName, object value)
{
WinFormsAdapter adapter = GetAdapter(host);
if (adapter != null && value is SW.FontWeight)
{
SD.FontStyle style = CurrentFontStyle;
if (HostUtils.FontWeightIsBold((SW.FontWeight)value))
{
style |= SD.FontStyle.Bold;
}
adapter.Font = new SD.Font(CurrentFontFamily, CurrentFontSize, style);
}
}
internal static RenderTargetBitmap GetRenderTargetBitmapForVisual(int width, int height, Visual visualToRender)
{
if (width < 1 || height < 1)
{
return(null);
}
RenderTargetBitmap bmp = new RenderTargetBitmap(
width,
height,
HostUtils.PixelsPerInch(Orientation.Horizontal),
HostUtils.PixelsPerInch(Orientation.Vertical),
PixelFormats.Pbgra32);
bmp.Render(visualToRender);
return(bmp);
}
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);
}
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);
}
}
}
}
private static void UpdateBackgroundImage(ElementHost host)
{
if (host != null && host.HostContainerInternal != null)
{
if (host.BackColorTransparent)
{
Control parent = host.Parent;
if (parent != null && parent.Visible)
{
using (SD.Bitmap parentBitmap = HostUtils.GetCoveredPortionOfBitmap(parent, host))
{
host.HostContainerInternal.Background = new SWM.ImageBrush(Convert.ToSystemWindowsMediaImagingBitmapImage(parentBitmap));
}
}
}
else
{
using (SD.Bitmap elementHostBitmap = HostUtils.GetBitmapOfControl(host, host))
{
host.HostContainerInternal.Background = new SWM.ImageBrush(Convert.ToSystemWindowsMediaImagingBitmapImage(elementHostBitmap));
}
}
}
}
