public override Dictionary <char, BMPFontCharacter> GetCharacters()
{
byte blockId = r.ReadByte();
int blockSize = r.ReadInt16();
int numCharacters = blockSize / 20;
Dictionary <char, BMPFontCharacter> chars = new Dictionary <char, BMPFontCharacter>();
for (int i = 0; i < numCharacters; i++)
{
uint charId = r.ReadUInt32();
uint x = r.ReadUInt16();
uint y = r.ReadUInt16();
uint width = r.ReadUInt16();
uint height = r.ReadUInt16();
int xOffset = r.ReadInt16();
int yOffset = r.ReadInt16();
int xAdvance = r.ReadInt16();
uint page = r.ReadByte();
byte channel = r.ReadByte();
BMPFontCharacter c = new BMPFontCharacter(charId, x, y, width, height,
xOffset, yOffset, xAdvance, page, channel);
chars.Add(c.Character, c);
}
return(chars);
}
public override Dictionary <char, BMPFontCharacter> GetCharacters()
{
TextLine line = reader.ReadLine();
if (line.Id != "chars")
{
throw new Exception("Failed to load angel bmp file, unexpected block '" + line.Id + "'");
}
uint numChars = line.GetUInt("count") ?? 0;
Dictionary <char, BMPFontCharacter> chars = new Dictionary <char, BMPFontCharacter>();
for (int i = 0; i < numChars; i++)
{
TextLine cline = reader.ReadLine();
if (cline.Id != "char")
{
throw new Exception("Failed to load angel bmp file, unexpected block '" + cline.Id + "'");
}
uint charId = cline.GetUInt("id") ?? '\0';
uint x = cline.GetUInt("x") ?? 0;
uint y = cline.GetUInt("y") ?? 0;
uint width = cline.GetUInt("width") ?? 0;
uint height = cline.GetUInt("height") ?? 0;
int xOffset = cline.GetInt("xoffset") ?? 0;
int yOffset = cline.GetInt("yoffset") ?? 0;
int xAdvance = cline.GetInt("xadvance") ?? 0;
uint page = cline.GetUInt("page") ?? 0;
byte channel = cline.GetByte("chnl") ?? 0;
BMPFontCharacter c = new BMPFontCharacter(charId, x, y, width, height,
xOffset, yOffset, xAdvance, page, channel);
chars.Add(c.Character, c);
}
return(chars);
}
public Vector2 MeasureString(string str)
{
float xSize = 0;
float ySize = 0;
string[] lines = str.Split('\n');
for (int l = 0; l < lines.Length; l++)
{
ySize += LineHeight;
string line = lines[l];
int lineXSize = 0;
char?lastC = null;
for (int i = 0; i < line.Length; i++)
{
char c = line[i];
if (c == '\r')
{
continue;
}
BMPFontCharacter g = GetCharacter(c);
if (g != null)
{
int kerningOffset = lastC.HasValue ? GetKerning(lastC.Value, c) : 0;
lineXSize += g.XAdvance + kerningOffset;
}
lastC = c;
}
xSize = Math.Max(lineXSize, xSize);
}
return(new Vector2(xSize, ySize));
}
public void DrawString(string str, float x, float y, SpriteBatch sb, TextAlign align, Color color,
Color?shadowColor = null)
{
float startX = x;
float startY = y;
string[] lines = str.Split('\n');
bool topAlign = align == TextAlign.TopLeft ||
align == TextAlign.TopCenter ||
align == TextAlign.TopRight;
bool bottomAlign = align == TextAlign.BottomLeft ||
align == TextAlign.BottomCenter ||
align == TextAlign.BottomRight;
bool leftAlign = align == TextAlign.TopLeft ||
align == TextAlign.Left ||
align == TextAlign.BottomLeft;
bool rightAlign = align == TextAlign.TopRight ||
align == TextAlign.Right ||
align == TextAlign.BottomRight;
for (int l = 0; l < lines.Length; l++)
{
string line = lines[l];
Vector2 lineSize = MeasureString(line);
if (leftAlign)
{
x = startX;
}
else if (rightAlign)
{
x = startX - lineSize.X;
}
else
{
x = startX - lineSize.X / 2f;
}
if (topAlign)
{
y = startY + LineHeight * l;
}
else if (bottomAlign)
{
y = startY - LineHeight * (lines.Length - l);
}
else
{
y = startY - (LineHeight * (lines.Length / 2f)) + LineHeight * l;
}
char?lastC = null;
for (int i = 0; i < line.Length; i++)
{
char c = line[i];
if (c == '\r')
{
continue;
}
BMPFontCharacter g = GetCharacter(c);
if (g != null)
{
int kerningOffset = lastC.HasValue ? GetKerning(lastC.Value, c) : 0;
Rectangle rect = new Rectangle(x + g.XOffset + kerningOffset, y + g.YOffset, g.Width, g.Height);
Rectangle clip = new Rectangle(g.X, g.Y, g.Width, g.Height);
if (shadowColor.HasValue)
{
sb.Draw(Pages[g.PageIndex], rect + new Vector2(1, 1), clip, shadowColor.Value);
}
sb.Draw(Pages[g.PageIndex], rect, clip, color);
x += g.XAdvance + kerningOffset;
}
lastC = c;
}
}
}
