/// <summary>
/// Gets the font for the given fontname and textSize.
/// </summary>
/// <returns>The font.</returns>
/// <param name="fontName">Font name.</param>
private CTFont GetFont(string fontName, float textSize)
{
if (string.IsNullOrWhiteSpace(fontName))
{
fontName = CGContextRenderer.DefaultFontName;
}
if (_font == null)
{
_fontName = fontName;
_font = new CTFont(fontName, textSize);
}
if (_fontName != fontName)
{
_font.Dispose();
_fontName = fontName;
_font = new CTFont(fontName, textSize);
}
if (_font.Size != textSize)
{
_font.Dispose();
_fontName = fontName;
_font = new CTFont(fontName, textSize);
}
CTFont font = _font;
return(font);
}
private void Dispose(bool disposing)
{
if (disposing)
{
nativeFont.Dispose();
}
}
internal void Dispose(bool disposing)
{
if (disposing)
{
if (nativeFont != null)
{
nativeFont.Dispose();
nativeFont = null;
}
}
}
private string[] GetStyleNames(string[] fontIds)
{
string[] styleNames = new string[fontIds.Length];
for (int i = 0; i < fontIds.Length; i++)
{
var font = new CTFont(fontIds[i], UIFont.SystemFontSize);
styleNames[i] = font.GetName(CTFontNameKey.Style);
font.Dispose();
}
return(styleNames);
}
public override bool LoadFont(Font font)
{
font.RealSize = font.Size * Scale;
CTFont sysFont = font.RendererData as CTFont;
if (sysFont != null)
{
sysFont.Dispose();
}
sysFont = new CTFont(GetSysFontName(font.FaceName, font.Bold, font.Italic), font.RealSize);
font.RendererData = sysFont;
return(true);
}
public override void FreeFont(Font font)
{
if (font.RendererData == null)
{
return;
}
CTFont sysFont = font.RendererData as CTFont;
if (sysFont == null)
{
throw new InvalidOperationException("Freeing empty font");
}
sysFont.Dispose();
font.RendererData = null;
}
public string GetFontStyle(string aFontName)
{
var vFontName = aFontName ?? _systemFontName;
var vFont = new CTFont(vFontName, NSFont.SystemFontSize);
var vStyle = vFont.GetName(CTFontNameKey.Style);
vFont.Dispose();
if (vStyle != null)
{
if (vStyle.Contains("Italic"))
{
return("italic");
}
}
return("normal");
}