/// <summary>
/// set font size in point unit, this value may be rounded
/// </summary>
/// <param name="value"></param>
public void SetFontSize(float value)
{
//check if we have size-specific bmp cache or not
float actualCacheSize = (float)Math.Round(value, 1);
if (_size == actualCacheSize)
{
return;
}
//
_size = actualCacheSize;
if (_specificFontSizeGlyphBitmaps == null)
{
_specificFontSizeGlyphBitmaps = new Dictionary <float, GlyphBitmapList>();
}
if (!_specificFontSizeGlyphBitmaps.TryGetValue(actualCacheSize, out _bitmapList))
{
//not found=> create a new one
_bitmapList = new GlyphBitmapList();
_specificFontSizeGlyphBitmaps.Add(actualCacheSize, _bitmapList);
}
}
public void SetCurrentTypeface(Typeface typeface)
{
_currentTypeface = typeface;
if (_cacheGlyphBmpLists.TryGetValue(typeface, out _bitmapList))
{
return;
}
//TODO: you can scale down to proper img size
//or create a single texture atlas.
//if not create a new one
_bitmapList = new GlyphBitmapList();
_cacheGlyphBmpLists.Add(typeface, _bitmapList);
int glyphCount = typeface.GlyphCount;
System.Text.StringBuilder stbuilder = new System.Text.StringBuilder();
for (ushort i = 0; i < glyphCount; ++i)
{
stbuilder.Length = 0;//reset
Glyph glyph = typeface.GetGlyph(i);
typeface.ReadSvgContent(glyph, stbuilder);
//create bitmap from svg
GlyphBitmap glyphBitmap = new GlyphBitmap();
glyphBitmap.Width = glyph.MaxX - glyph.MinX;
glyphBitmap.Height = glyph.MaxY - glyph.MinY;
if (glyphBitmap.Width == 0 || glyphBitmap.Height == 0)
{
continue;
}
glyphBitmap.Bitmap = _svgBmpBuilderFunc(stbuilder);// ParseAndRenderSvg(stbuilder, vgDocHost);
if (glyphBitmap.Bitmap == null)
{
continue;
}
//
//MemBitmapExtensions.SaveImage(glyphBitmap.Bitmap, "testGlyphBmp_" + i + ".png");
_bitmapList.RegisterBitmap(glyph.GlyphIndex, glyphBitmap);
}
}
public void SetCurrentTypeface(Typeface typeface)
{
_currentTypeface = typeface;
if (_cachedBmpList.TryGetValue(typeface, out _bitmapList))
{
return;
}
//TODO: you can scale down to proper img size
//or create a single texture atlas.
//if not create a new one
_bitmapList = new GlyphBitmapList();
_cachedBmpList.Add(typeface, _bitmapList);
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);
}
}
}
