public TextBlock(Font font, SKColor color, string text, GlyphAnimation glyphAnimation)
{
Font = font;
Color = color;
Text = text ?? "";
GlyphAnimation = glyphAnimation;
}
/// <summary>
/// Draw a measuredspan (ie a substring) of the glyphspan
/// </summary>
/// <param name="x">Left coordinate</param>
/// <param name="y">Bottom coordinate of the text baseline</param>
/// <param name="measuredSpan"></param>
public static void DrawGlyphSpan(this SKCanvas canvas, GlyphSpan glyphSpan, float x, float y, SKColor color, MeasuredSpan measuredSpan, GlyphAnimation glyphAnimation = null)
{
if (canvas == null)
{
return;
}
if (color.Alpha == 0)
{
return;
}
if (measuredSpan.glyphstart < 0)
{
return;
}
if (measuredSpan.glyphend < 0)
{
return;
}
// paint the "substring" blocks
if (glyphAnimation == null)
{
glyphSpan.PaintBlocks(canvas, measuredSpan.glyphstart, measuredSpan.glyphend, x, y, color);
}
else
{
glyphSpan.PaintBlocks(canvas, measuredSpan.glyphstart, measuredSpan.glyphend, x, y, color, glyphAnimation);
}
}
