public void Clear(Typeface typeface)
{
if (_totalBmpCache.TryGetValue(typeface, out TypefaceGlyphBitmapCache found))
{
found.Clear();
_totalBmpCache.Remove(typeface);
}
if (_currentTypeface == typeface)
{
_currentTypeface = null;
_bmpCache = null;
}
}
public void SetCurrentTypeface(Typeface typeface, float sizeInPts)
{
if (_currentTypeface == typeface && _currentSizeInPts == sizeInPts)
{
return;
}
_currentSizeInPts = sizeInPts;
_currentTypeface = typeface;
if (_totalBmpCache.TryGetValue(typeface, out _bmpCache))
{
_bmpCache.SetFontSize(_currentSizeInPts);
return;
}
//TODO: you can scale down to proper img size
//or create a single texture atlas.
//if not create a new one
_bmpCache = new TypefaceGlyphBitmapCache(typeface);
_bmpCache.SetFontSize(_currentSizeInPts);
return;
//if (!delayCreateBmp)
//{
// int glyphCount = typeface.GlyphCount;
// using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
// {
// for (ushort i = 0; i < glyphCount; ++i)
// {
// ms.SetLength(0);
// Glyph glyph = typeface.GetGlyph(i);
// typeface.ReadBitmapContent(glyph, ms);
// GlyphBitmap glyphBitmap = new GlyphBitmap();
// glyphBitmap.Width = glyph.MaxX - glyph.MinX;
// glyphBitmap.Height = glyph.MaxY - glyph.MinY;
// //glyphBitmap.Bitmap = ...
// glyphBitmap.Bitmap = MemBitmap.LoadBitmap(ms);
// //MemBitmapExtensions.SaveImage(glyphBitmap.Bitmap, "testGlyphBmp_" + i + ".png");
// //_bitmapList.RegisterBitmap(glyph.GlyphIndex, glyphBitmap);
// _bitmapList.RegisterBitmap(i, glyphBitmap);
// }
// }
//}
}
/// <summary>
/// clear all cache bitmap
/// </summary>
public void Clear()
{
if (_currentTypeface == null)
{
return;
}
_currentTypeface = null;
foreach (TypefaceGlyphBitmapCache bmplist in _totalBmpCache.Values)
{
bmplist.Dispose();
}
_totalBmpCache.Clear();
//
_bmpCache?.Dispose();
_bmpCache = null;
}