public Bitmap getGlyph(Color BGColor, Color FGColor, TerminalFrameBuffer.GraphicAttributeElements Elements, Char glyph)
{
var key = new Tuple <Color, Color, TerminalFrameBuffer.GraphicAttributeElements, Char>(BGColor, FGColor, Elements, glyph);
if (glyphCache.TryGetValue(key, out Bitmap bits))
{
return(bits);
}
Rectangle rect = new Rectangle(new Point(0, 0), charSize);
bits = new Bitmap(charSize.Width, charSize.Height, terminalCanvasBitmapGraphic);
using (var gr = Graphics.FromImage((Image)bits))
{
gr.FillRectangle(_getSolid(BGColor), rect);
if (!fontCache.TryGetValue(Elements, out Font procFont))
{
procFont = buildFont(Elements);
}
String text = new String(glyph, 1);
gr.DrawString(text, procFont, _getSolid(FGColor), rect, StringFormat.GenericTypographic);
}
glyphCache.Add(key, bits);
return(bits);
}
private Font setFont(TerminalFrameBuffer.GraphicAttributeElements elements, FontStyle style)
{
var _font = new Font(TerminalFont.FontFamily, TerminalFont.Size, style);
fontCache.Add(elements, _font);
return(_font);
}
private Font buildFont(TerminalFrameBuffer.GraphicAttributeElements Elements)
{
if (Elements == TerminalFrameBuffer.GraphicAttributeElements.None)
{
return(TerminalFont);
}
if (fontCache.TryGetValue(Elements, out Font font))
{
return(font);
}
var bold = Elements.HasFlag(TerminalFrameBuffer.GraphicAttributeElements.Bold);
var italic = Elements.HasFlag(TerminalFrameBuffer.GraphicAttributeElements.Italic);
var under = Elements.HasFlag(TerminalFrameBuffer.GraphicAttributeElements.Underline_Single) ||
Elements.HasFlag(TerminalFrameBuffer.GraphicAttributeElements.Underline_Double);
if (bold && italic && under)
{
return(setFont(Elements, FontStyle.Bold | FontStyle.Italic | FontStyle.Underline));
}
if (bold && italic)
{
return(setFont(Elements, FontStyle.Bold | FontStyle.Italic));
}
if (bold && under)
{
return(setFont(Elements, FontStyle.Bold | FontStyle.Underline));
}
if (italic && under)
{
return(setFont(Elements, FontStyle.Italic | FontStyle.Underline));
}
if (bold)
{
return(setFont(Elements, FontStyle.Bold));
}
if (italic)
{
return(setFont(Elements, FontStyle.Italic));
}
if (under)
{
return(setFont(Elements, FontStyle.Underline));
}
return(setFont(Elements, FontStyle.Regular));
}