internal double Draw(
Visual visual,
string text,
double x,
double y,
Brush brush,
DrawingContext dc,
double maxWidth,
TextAlignment align,
BiaTextTrimmingMode trimming,
bool isUseCache)
{
if (text == null)
{
return(0d);
}
return(Draw(
visual,
text.AsSpan(),
x,
y,
brush,
dc,
maxWidth,
align,
trimming,
isUseCache));
}
internal double Draw(
Visual visual,
ReadOnlySpan <char> text,
double x,
double y,
Brush brush,
DrawingContext dc,
double maxWidth,
TextAlignment align,
BiaTextTrimmingMode trimming,
bool isUseCache)
{
if (NumberHelper.AreCloseZero(_fontSize))
{
return(0);
}
if (text.Length == 0)
{
return(0);
}
maxWidth = Math.Ceiling(maxWidth);
if (maxWidth <= 0)
{
return(0);
}
var gr = trimming switch
{
BiaTextTrimmingMode.None => MakeGlyphRunNone(visual, text, maxWidth, isUseCache),
BiaTextTrimmingMode.Standard => MakeGlyphRunStandard(visual, text, maxWidth, isUseCache),
BiaTextTrimmingMode.Filepath => MakeGlyphRunFilepath(visual, text, maxWidth, isUseCache),
_ => throw new ArgumentOutOfRangeException(nameof(trimming), trimming, null)
};
if (gr == default)
{
return(0);
}
switch (align)
{
case TextAlignment.Left:
break;
case TextAlignment.Right:
x += maxWidth - gr.Width;
break;
case TextAlignment.Center:
x += (maxWidth - gr.Width) / 2;
break;
default:
throw new ArgumentOutOfRangeException(nameof(align), align, null);
}
if (NumberHelper.AreCloseZero(x) && NumberHelper.AreCloseZero(y))
{
dc.DrawGlyphRun(brush, gr.GlyphRun);
}
else
{
var hash = HashCodeMaker.Make(x, y);
if (_translateCache.TryGetValue(hash, out var t) == false)
{
t = new TranslateTransform(x, y);
_translateCache.Add(hash, t);
}
dc.PushTransform(t);
dc.DrawGlyphRun(brush, gr.GlyphRun);
dc.Pop();
}
return(gr.Width);
}
