void ReadGlyphList(BinaryReader reader)
{
ushort glyphCount = reader.ReadUInt16();
for (int i = 0; i < glyphCount; ++i)
{
//read each glyph map info
//1. codepoint
var glyphMap = new TextureGlyphMapData();
ushort glyphIndex = reader.ReadUInt16();
//2. area, left,top,width,height
glyphMap.Left = reader.ReadUInt16();
glyphMap.Top = reader.ReadUInt16();
glyphMap.Width = reader.ReadUInt16();
glyphMap.Height = reader.ReadUInt16();
//3. border x,y
int borderXY = reader.ReadUInt16();
glyphMap.BorderX = borderXY & 0xff;
glyphMap.BorderY = borderXY >> 8;
//---------------------------------------
//4. texture offset
glyphMap.TextureXOffset = reader.ReadSingle();
glyphMap.TextureYOffset = reader.ReadSingle();
//---------------------------------------
_atlas.AddGlyph(glyphIndex, glyphMap);
}
}
//--------------------
internal void WriteGlyphList(Dictionary <ushort, TextureGlyphMapData> glyphs)
{
_writer.Write((ushort)FontTextureObjectKind.GlyphList);
//total number
int totalNum = glyphs.Count;
#if DEBUG
if (totalNum >= ushort.MaxValue)
{
throw new NotSupportedException();
}
#endif
_writer.Write((ushort)totalNum);
//
foreach (var kp in glyphs)
{
ushort glyphIndex = kp.Key;
TextureGlyphMapData g = kp.Value;
//1. code point
_writer.Write((ushort)glyphIndex);
//2. area, left,top,width,height
_writer.Write((ushort)g.Left);
_writer.Write((ushort)g.Top);
_writer.Write((ushort)g.Width);
_writer.Write((ushort)g.Height);
//3. texture offset
_writer.Write((short)g.TextureXOffset); //short
_writer.Write((short)g.TextureYOffset); //short
}
}
public bool TryGetGlyphMapData(ushort glyphIndex, out TextureGlyphMapData glyphdata)
{
if (!_glyphLocations.TryGetValue(glyphIndex, out glyphdata))
{
glyphdata = null;
return(false);
}
return(true);
}
public static Dictionary <ushort, TextureGlyphMapData> CloneLocationWithOffset(SimpleFontAtlas org, int dx, int dy)
{
Dictionary <ushort, TextureGlyphMapData> cloneDic = new Dictionary <ushort, TextureGlyphMapData>();
foreach (var kp in org._glyphLocations)
{
TextureGlyphMapData orgMapData = kp.Value;
cloneDic.Add(kp.Key,
new TextureGlyphMapData()
{
Left = orgMapData.Left + dx,
Top = orgMapData.Top + dy,
//
Width = orgMapData.Width,
Height = orgMapData.Height,
TextureXOffset = orgMapData.TextureXOffset,
TextureYOffset = orgMapData.TextureYOffset
});
}
return(cloneDic);
}
public void AddGlyph(ushort glyphIndex, TextureGlyphMapData glyphData)
{
_glyphLocations.Add(glyphIndex, glyphData);
}
