public IFont GetFont(string name, int size, Weight weight, bool italic)
{
var fontStyle = GetFontStyle(weight, italic);
var fce = new FontCacheEntry
{
FontFace = name,
FontSize = size,
FontStyle = fontStyle
};
QFont font;
var config = new QFontBuilderConfiguration(false)
{
TextGenerationRenderHint = GetFontFaceRenderHintingPreference(name),
GlyphMargin = 2,
TransformToCurrentOrthogProjection = true,
KerningConfig =
{
alphaEmptyPixelTolerance = 40,
},
};
if (!_fontCache.TryGetValue(fce, out font))
{
var sysFont = GetFontBestSizeFit(name, size, fontStyle);
font = new QFont(sysFont, config);
_fontCache[fce] = font;
}
return new WrappedFont(font);
}
private void CreateFontCacheEntry(FontCacheEntry fontCacheEntry)
{
var font = new Font(_device, fontCacheEntry.FontSize, 0, fontCacheEntry.FontWeight, 1,
fontCacheEntry.Italic, CharacterSet.Default, Precision.Device, FontQuality.ClearTypeNatural,
PitchAndFamily.DontCare, fontCacheEntry.FontFace);
_fontCache[fontCacheEntry] = font;
}
private static IntPtr GetCachedHFont(Font font)
{
//the original code struck me as bad. attempting to ID fonts by picking a subset of their fields is not gonna work.
//don't call this.Font in InputRoll.cs, it is probably slow.
//consider Fonts to be a jealously guarded resource (they need to be disposed, after all) and manage them carefully.
//this cache maintains the HFONTs only.
FontCacheEntry ce;
if (!FontsCache.TryGetValue(font, out ce))
{
FontsCache[font] = ce = new FontCacheEntry();
ce.HFont = font.ToHfont();
}
return(ce.HFont);
}
private FontCacheEntry GetCachedHFont(Font font)
{
FontCacheEntry fontEntry;
var result = _fontsCache.TryGetValue(font, out fontEntry);
if (!result)
{
// Hack! The 6 is hardcoded to make tastudio look like taseditor, because taseditor is so perfect and wonderful
fontEntry = new FontCacheEntry
{
HFont = CreateNormalHFont(font, 6),
RotatedHFont = CreateRotatedHFont(font, true)
};
_fontsCache.Add(font, fontEntry);
}
return(fontEntry);
}
public IFont GetFont(string fontFace="Arial", int fontSize=16, Weight weight=Weight.Normal, bool italic=false)
{
var fontWeight = MapWeight(weight);
var testEntry = new FontCacheEntry
{
FontFace = fontFace,
FontSize = fontSize,
FontWeight = fontWeight,
Italic = italic
};
if (!_fontCache.ContainsKey(testEntry))
{
CreateFontCacheEntry(testEntry);
}
return _fontCache[testEntry];
}
private IntPtr GetCachedHFont(Font font)
{
//the original code struck me as bad. attempting to ID fonts by picking a subset of their fields is not gonna work.
//don't call this.Font in InputRoll.cs, it is probably slow.
//consider Fonts to be a jealously guarded resource (they need to be disposed, after all) and manage them carefully.
//this cache maintains the HFONTs only.
FontCacheEntry ce;
if (!FontsCache.TryGetValue(font, out ce))
{
FontsCache[font] = ce = new FontCacheEntry();
ce.HFont = font.ToHfont();
}
return ce.HFont;
}
