public void DrawString(string str, double x, double y, StringAlignment align, Size layoutRect, StringColorType colorType = StringColorType.Forground)
{
TextAlignment TextAlign = TextAlignment.Left;
switch (align)
{
case StringAlignment.Left:
TextAlign = TextAlignment.Left;
break;
case StringAlignment.Center:
TextAlign = TextAlignment.Center;
break;
case StringAlignment.Right:
TextAlign = TextAlignment.Right;
break;
}
TextLayout layout = new TextLayout(str, this.FontFamily, this.FontSize, this.Brushes[this.ForegroundColor], layoutRect.Width, TextAlign);
layout.FlowDirection = this.RightToLeft ? FlowDirection.RightToLeft : FlowDirection.LeftToRight;
layout.Draw(this.Context, x, y);
layout.Dispose();
}
public ITextLayout CreateLaytout(string str, SyntaxInfo[] syntaxCollection, IEnumerable <Marker> MarkerRanges, IEnumerable <Selection> SelectRanges, double wrapwidth)
{
TextLayout layout;
if (wrapwidth == LineToIndexTable.NONE_BREAK_LINE)
{
layout = new TextLayout(str, this.FontFamily, this.FontSize, Brushes[this.Foreground], this.TextArea.Width);
layout.TextWarpping = TextWrapping.NoWrap;
}
else
{
layout = new TextLayout(str, this.FontFamily, this.FontSize, Brushes[this.Foreground], wrapwidth);
layout.TextWarpping = TextWrapping.Wrap;
}
layout.FlowDirection = this.RightToLeft ? FlowDirection.RightToLeft : FlowDirection.LeftToRight;
if (syntaxCollection != null)
{
foreach (SyntaxInfo s in syntaxCollection)
{
Brush brush = this.Brushes[this.Foreground];
switch (s.type)
{
case TokenType.Comment:
brush = this.Brushes[this.Comment];
break;
case TokenType.Keyword1:
brush = this.Brushes[this.Keyword1];
break;
case TokenType.Keyword2:
brush = this.Brushes[this.Keyword2];
break;
case TokenType.Literal:
brush = this.Brushes[this.Literal];
break;
}
TextEffect effect = new TextEffect(null, brush, null, s.index, s.length);
effect.Freeze();
layout.SetTextEffect(effect);
}
}
if (MarkerRanges != null)
{
foreach (Marker m in MarkerRanges)
{
if (m.start == -1 || m.length == 0)
{
continue;
}
Brush brush;
if (m.hilight == HilightType.Url)
{
brush = this.Brushes[this.Url];
TextEffect effect = new TextEffect(null, brush, null, m.start, m.length);
effect.Freeze();
layout.SetTextEffect(effect);
}
else
{
System.Windows.Media.Color color = new System.Windows.Media.Color();
color.A = m.color.A;
color.R = m.color.R;
color.G = m.color.G;
color.B = m.color.B;
brush = this.Brushes[color];
}
Pen pen = this.Pens.Get(brush, m.hilight);
TextDecorationCollection collection = new TextDecorationCollection();
TextDecoration decoration = new TextDecoration();
decoration.Pen = pen;
decoration.Location = TextDecorationLocation.Underline;
decoration.Freeze();
collection.Add(decoration);
if (m.hilight == HilightType.Squiggle)
{
layout.SetSquilleLine(m.start, m.length, collection);
}
else
{
layout.SetTextDecoration(m.start, m.length, collection);
}
}
}
return(layout);
}
