private void DrawElement(TextRender2MeasureMapElement element, CanvasDrawingSession session, Rect region)
{
var command = element.Command;
string text;
var textCnt = command.Content as ITextRenderTextContent;
if (textCnt != null)
{
text = textCnt.Text ?? "";
}
else
{
text = "";
}
using (var format = new CanvasTextFormat())
{
format.FontFamily = "Segoe UI";
format.FontSize = (float)Callback.PostFontSize;
format.WordWrapping = CanvasWordWrapping.NoWrap;
format.TrimmingGranularity = CanvasTextTrimmingGranularity.None;
format.HorizontalAlignment = CanvasHorizontalAlignment.Left;
session.DrawText(text, new Vector2((float)element.Placement.X, (float)element.Placement.Y), Colors.Black, format);
}
}
private IRenderArgument DoRenderElement(ITextRender2MeasureMap map, ITextRender2MeasureMapLine line, TextRender2MeasureMapElement el)
{
return new NativeRenderArgument(map, line, el, Callback);
}
public NativeRenderArgument(ITextRender2MeasureMap map, ITextRender2MeasureMapLine line, TextRender2MeasureMapElement el, ITextRender2RenderCallback callback)
{
if (map == null) throw new ArgumentNullException(nameof(map));
if (line == null) throw new ArgumentNullException(nameof(line));
if (callback == null) throw new ArgumentNullException(nameof(callback));
var command = el.Command;
string text;
var textCnt = command.Content as ITextRenderTextContent;
if (textCnt != null)
{
text = textCnt.Text ?? "";
}
else
{
text = "";
}
Text = text;
ElementSize = el.Size;
Placement = el.Placement;
LineHeight = line.Height;
StrikethrougKoef = map.StrikethrougKoef;
if (command.Attributes.Attributes.ContainsKey(CommonTextRenderAttributes.Link))
{
var linkAttribute = command.Attributes.Attributes[CommonTextRenderAttributes.Link] as ITextRenderLinkAttribute;
if (linkAttribute != null)
{
Link = new LinkDataWrapper(linkAttribute);
}
}
Callback = new RenderCallbackWrapper(callback);
TextAttributeFlags flags = 0;
var attr = command.Attributes.Attributes;
if (attr.ContainsKey(CommonTextRenderAttributes.Link))
{
flags = flags | TextAttributeFlags.Link;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Bold))
{
flags = flags | TextAttributeFlags.Bold;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Fixed))
{
flags = flags | TextAttributeFlags.Fixed;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Italic))
{
flags = flags | TextAttributeFlags.Italic;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Overline))
{
flags = flags | TextAttributeFlags.Overline;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Quote))
{
flags = flags | TextAttributeFlags.Quote;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Spoiler))
{
flags = flags | TextAttributeFlags.Spoiler;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Strikethrough))
{
flags = flags | TextAttributeFlags.Strikethrough;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Subscript))
{
flags = flags | TextAttributeFlags.Subscript;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Superscript))
{
flags = flags | TextAttributeFlags.Superscript;
}
if (attr.ContainsKey(CommonTextRenderAttributes.Undeline))
{
flags = flags | TextAttributeFlags.Undeline;
}
Flags = flags;
}
public MeasureMapLine(TextRender2MeasureMapElement[] elements, int lineNumber, double height)
{
if (elements == null) throw new ArgumentNullException(nameof(elements));
this.elements = elements;
LineNumber = lineNumber;
Height = height;
}