/// <summary>
/// Handle mouse double click to select word under the mouse.
/// </summary>
/// <param name="parent">the control hosting the html to set cursor and invalidate</param>
/// <param name="e">mouse event args</param>
public void HandleMouseDoubleClick(Control parent, PointerEventArgs e)
{
ArgChecker.AssertArgNotNull(parent, "parent");
ArgChecker.AssertArgNotNull(e, "e");
_htmlContainerInt.HandleMouseDoubleClick(new ControlAdapter(parent), HtmlUtil.Convert(e.GetPosition(parent)));
}
public override void DrawString(string str, RFont font, RColor color, RPoint point, RSize size, bool rtl)
{
var text = GetText(str, font);
text.Constraint = HtmlUtil.Convert(size);
_g.DrawText(new SolidColorBrush(HtmlUtil.Convert(color)), HtmlUtil.Convert(point), text);
}
/// <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, HtmlUtil.Convert(clip)))
{
_htmlContainerInt.PerformPaint(ig);
}
}
/// <summary>
/// Handle mouse up to handle selection and link click.
/// </summary>
/// <param name="parent">the control hosting the html to invalidate</param>
/// <param name="e">the mouse event args</param>
public void HandleLeftMouseUp(Control parent, PointerEventArgs e)
{
ArgChecker.AssertArgNotNull(parent, "parent");
ArgChecker.AssertArgNotNull(e, "e");
var mouseEvent = new RMouseEvent(true);
_htmlContainerInt.HandleMouseUp(new ControlAdapter(parent), HtmlUtil.Convert(e.GetPosition(parent)), mouseEvent);
}
public override RBrush GetTextureBrush(RImage image, RRect dstRect, RPoint translateTransformLocation)
{
var brush = new ImageBrush(((ImageAdapter)image).Image);
brush.Stretch = Stretch.None;
brush.TileMode = TileMode.Tile;
brush.DestinationRect = new RelativeRect(HtmlUtil.Convert(dstRect).Translate(HtmlUtil.Convert(translateTransformLocation) - new Point()), RelativeUnit.Absolute);
return(new BrushAdapter(brush));
}
protected override RColor GetColorInt(string colorName)
{
Color c;
if (!ColorNameDic.TryGetValue(colorName.ToLower(), out c))
{
return(RColor.Empty);
}
return(HtmlUtil.Convert(c));
}
/// <summary>
/// Get all the links in the HTML with the element Rect and href data.
/// </summary>
/// <returns>collection of all the links in the HTML</returns>
public List <LinkElementData <Rect> > GetLinks()
{
var linkElements = new List <LinkElementData <Rect> >();
foreach (var link in HtmlContainerInt.GetLinks())
{
linkElements.Add(new LinkElementData <Rect>(link.Id, link.Href, HtmlUtil.Convert(link.Rectangle)));
}
return(linkElements);
}
public override void DrawPolygon(RBrush brush, RPoint[] points)
{
if (points != null && points.Length > 0)
{
var g = new StreamGeometry();
using (var context = g.Open())
{
context.BeginFigure(HtmlUtil.Convert(points[0]), true);
for (int i = 1; i < points.Length; i++)
{
context.LineTo(HtmlUtil.Convert(points[i]));
}
context.EndFigure(false);
}
_g.DrawGeometry(((BrushAdapter)brush).Brush, null, g);
}
}
protected override RBrush CreateLinearGradientBrush(RRect rect, RColor color1, RColor color2, double angle)
{
var startColor = angle <= 180 ? HtmlUtil.Convert(color1) : HtmlUtil.Convert(color2);
var endColor = angle <= 180 ? HtmlUtil.Convert(color2) : HtmlUtil.Convert(color1);
angle = angle <= 180 ? angle : angle - 180;
double x = angle < 135 ? Math.Max((angle - 45) / 90, 0) : 1;
double y = angle <= 45 ? Math.Max(0.5 - angle / 90, 0) : angle > 135 ? Math.Abs(1.5 - angle / 90) : 0;
return(new BrushAdapter(new LinearGradientBrush
{
StartPoint = new RelativePoint(x, y, RelativeUnit.Relative),
EndPoint = new RelativePoint(1 - x, 1 - y, RelativeUnit.Relative),
GradientStops = new GradientStops
{
new GradientStop(startColor, 0),
new GradientStop(endColor, 1)
}
}));
}
/// <summary>
/// Get solid color brush for the given color.
/// </summary>
private static IBrush GetSolidColorBrush(RColor color)
{
IBrush solidBrush;
if (color == RColor.White)
{
solidBrush = Brushes.White;
}
else if (color == RColor.Black)
{
solidBrush = Brushes.Black;
}
else if (color.A < 1)
{
solidBrush = Brushes.Transparent;
}
else
{
solidBrush = new SolidColorBrush(HtmlUtil.Convert(color));
}
return(solidBrush);
}
public override void DrawImage(RImage image, RRect destRect, RRect srcRect)
{
_g.DrawImage(((ImageAdapter)image).Image, 1, HtmlUtil.Convert(srcRect), HtmlUtil.Convert(destRect));
}
/// <summary>
/// Handle mouse move to handle hover cursor and text selection.
/// </summary>
/// <param name="parent">the control hosting the html to set cursor and invalidate</param>
/// <param name="mousePos">the mouse event args</param>
public void HandleMouseMove(Control parent, Point mousePos)
{
ArgChecker.AssertArgNotNull(parent, "parent");
_htmlContainerInt.HandleMouseMove(new ControlAdapter(parent), HtmlUtil.Convert(mousePos));
}
public override void DrawImage(RImage image, RRect destRect)
{
_g.DrawImage(((ImageAdapter)image).Image, 1, new Rect(0, 0, image.Width, image.Height), HtmlUtil.Convert(destRect));
}
public override void PushClip(RRect rect)
{
_clipStack.Push(_g.PushClip(HtmlUtil.Convert(rect)));
//_clipStack.Push(rect);
//_g.PushClip(new RectangleGeometry(Utils.Convert(rect)));
}
/// <summary>
/// Get the Rect of html element as calculated by html layout.<br/>
/// Element if found by id (id attribute on the html element).<br/>
/// Note: to get the screen Rect you need to adjust by the hosting control.<br/>
/// </summary>
/// <param name="elementId">the id of the element to get its Rect</param>
/// <returns>the Rect of the element or null if not found</returns>
public Rect?GetElementRectangle(string elementId)
{
var r = _htmlContainerInt.GetElementRectangle(elementId);
return(r.HasValue ? HtmlUtil.Convert(r.Value) : (Rect?)null);
}
/// <summary>
/// Get css link href at the given x,y location.
/// </summary>
/// <param name="location">the location to find the link at</param>
/// <returns>css link href if exists or null</returns>
public string GetLinkAt(Point location)
{
return(_htmlContainerInt.GetLinkAt(HtmlUtil.Convert(location)));
}
/// <summary>
/// Get attribute value of element at the given x,y location by given key.<br/>
/// If more than one element exist with the attribute at the location the inner most is returned.
/// </summary>
/// <param name="location">the location to find the attribute at</param>
/// <param name="attribute">the attribute key to get value by</param>
/// <returns>found attribute value or null if not found</returns>
public string GetAttributeAt(Point location, string attribute)
{
return(_htmlContainerInt.GetAttributeAt(HtmlUtil.Convert(location), attribute));
}
