/// <summary>
/// Perform the layout of the html in the control.
/// </summary>
protected override Size MeasureOverride(Size constraint)
{
if (_htmlContainer != null)
{
using (var ig = new GraphicsAdapter())
{
var horizontal = Padding.Left + Padding.Right + BorderThickness.Left + BorderThickness.Right;
var vertical = Padding.Top + Padding.Bottom + BorderThickness.Top + BorderThickness.Bottom;
var size = new Size(Math.Min(MaxWidth, constraint.Width), Math.Min(MaxHeight, constraint.Height));
var maxSize = new RSize(size.Width < Double.PositiveInfinity ? size.Width - horizontal : 0, size.Height < Double.PositiveInfinity ? size.Height - vertical : 0);
_htmlContainer.HtmlContainerInt.MaxSize = maxSize;
_htmlContainer.HtmlContainerInt.PerformLayout(ig);
var newSize = _htmlContainer.ActualSize;
constraint = new Size(newSize.Width + horizontal, newSize.Height + vertical);
}
}
if (double.IsPositiveInfinity(constraint.Width) || double.IsPositiveInfinity(constraint.Height))
constraint = Size.Empty;
return constraint;
}
/// <summary>
/// Render the html using the given device.
/// </summary>
/// <param name="g">the device to use to render</param>
/// <param name="clip">the clip rectangle of the html container</param>
public void PerformPaint(DrawingContext g, Rect clip)
{
ArgChecker.AssertArgNotNull(g, "g");
using (var ig = new GraphicsAdapter(g, Util.Convert(clip)))
{
_htmlContainerInt.PerformPaint(ig);
}
}
/// <summary>
/// Measures the bounds of box and children, recursively.
/// </summary>
public void PerformLayout()
{
using (var ig = new GraphicsAdapter())
{
_htmlContainerInt.PerformLayout(ig);
}
}
public override void MeasureString(string str, RFont font, double maxWidth, out int charFit, out double charFitWidth)
{
using (var g = new GraphicsAdapter())
{
g.MeasureString(str, font, maxWidth, out charFit, out charFitWidth);
}
}