public float DrawCharacter(BGICanvas bgi, float x, float y, BGICanvas.Direction dir, int size, byte character, IList <Rectangle> updates)
{
BGICharacter ch = this[character];
if (ch != null)
{
var drawUpdates = updates ?? new List <Rectangle>();
ch.Draw(bgi, x, y, dir, size, updates);
if (updates == null)
{
bgi.UpdateRegion(drawUpdates);
}
return(ch.GetWidth(size));
}
return(0);
}
public Size GetTextSize(string str, BGICanvas.Direction dir, int size)
{
float width = 0;
foreach (byte c in BGICanvas.Encoding.GetBytes(str))
{
BGICharacter ch = this[c];
if (ch != null)
{
width += ch.Width;
}
}
if (dir == BGICanvas.Direction.Horizontal)
{
return(new Size(BGICanvas.Trunc(width * BGICharacter.scaleup[size] / BGICharacter.scaledown[size]), (int)((Height + Math.Abs(OriginToDescender) + 1) * BGICharacter.scaleup[size] / BGICharacter.scaledown[size])));
}
else
{
return(new Size((int)((Height + Math.Abs(OriginToDescender) + 1) * BGICharacter.scaleup[size] / BGICharacter.scaledown[size]), BGICanvas.Trunc(width * BGICharacter.scaleup[size] / BGICharacter.scaledown[size])));
}
}
public void Load(Stream stream)
{
BinaryReader br = new BinaryReader(stream);
byte b;
do
{
b = br.ReadByte();
} while (b != 0x1a);
// fheader
headerSize = br.ReadUInt16();
byte[] name = br.ReadBytes(4);
fontName = Encoding.ASCII.GetString(name);
fontSize = br.ReadUInt16();
fontMajor = br.ReadByte();
fontMinor = br.ReadByte();
minMajor = br.ReadByte();
minMinor = br.ReadByte();
stream.Position = headerSize;
// header
sig = br.ReadByte();
characterCount = br.ReadInt16();
br.ReadByte(); // unused byte
first = br.ReadByte();
characterOffset = br.ReadInt16();
scanFlag = br.ReadByte();
org_to_cap = br.ReadSByte();
org_to_base = br.ReadSByte();
org_to_dec = br.ReadSByte();
byte[] shortName = br.ReadBytes(4);
shortFontName = Encoding.ASCII.GetString(shortName);
br.ReadByte(); // unused byte
// read offset table
Int16[] fontOffsets = new Int16[256];
for (int i = first; i < first + characterCount; i++)
{
fontOffsets[i] = br.ReadInt16();
}
// read character width table
byte[] charWidths = new byte[256];
for (int i = first; i < first + characterCount; i++)
{
charWidths[i] = br.ReadByte();
}
characters = new BGICharacter[256];
long start = stream.Position;
for (int i = first; i < first + characterCount; i++)
{
stream.Seek(start + fontOffsets[i], SeekOrigin.Begin);
characters[i] = new BGICharacter(this, stream, charWidths[i]);
}
capitalHeight = 40;
baseHeight = 0;
descenderHeight = -7;
BGICharacter bc;
bc = characters[(int)'E'];
if (bc == null)
{
bc = characters[(int)'M'];
}
if (bc != null)
{
bool isFirst = true;
int min = 0;
int max = 0;
foreach (BGICharacter.Stroke s in bc.Strokes)
{
if (isFirst || max < s.y)
{
max = s.y;
}
if (isFirst || min > s.y)
{
min = s.y;
}
isFirst = false;
}
capitalHeight = Math.Abs(max);
baseHeight = Math.Abs(min);
}
lowerCaseHeight = capitalHeight / 2;
bc = characters[(int)'q'];
if (bc != null)
{
bool isFirst = true;
int min = 0;
int max = 0;
foreach (BGICharacter.Stroke s in bc.Strokes)
{
if (isFirst || max < s.y)
{
max = s.y;
}
if (isFirst || min > s.y)
{
min = s.y;
}
isFirst = false;
}
descenderHeight = Math.Abs(min);
}
bc = characters[(int)'x'];
if (bc != null)
{
bool isFirst = true;
int min = 0;
int max = 0;
foreach (BGICharacter.Stroke s in bc.Strokes)
{
if (isFirst || max < s.y)
{
max = s.y;
}
if (isFirst || min > s.y)
{
min = s.y;
}
isFirst = false;
}
lowerCaseHeight = Math.Abs(max);
}
//Console.WriteLine("Font {0}", this);
loaded = true;
}