public Font(string font, uint size)
{
if (!File.Exists(font))
throw new FileNotFoundException("Failed to load font file:" + font);
Size = size;
if (Graphics.Instance.GraphicsDevice == null)
throw new NullReferenceException("Graphics Device is null.");
gd = Graphics.Instance.GraphicsDevice;
IntPtr libptr;
int ret = FT.FT_Init_FreeType(out libptr);
if (ret != 0)
throw new Exception("Failed to load FreeType library.");
int retb = FT.FT_New_Face(libptr, font, 0, out faceptr);
if (retb != 0)
throw new Exception("Failed to create font face.");
face = (FT_FaceRec)Marshal.PtrToStructure(faceptr, typeof(FT_FaceRec));
FT.FT_Set_Char_Size(faceptr, (int)size << 6, (int)size << 6, 96, 96);
FT.FT_Set_Pixel_Sizes(faceptr, size, size);
ascender = face.ascender >> 6;
descender = face.descender >> 6;
fontheight = ((face.height >> 6) + descender + ascender) / 4;
yoffset = (int)(Size - ascender);
baseCharacter = CreateChar('i');
}
private Character[] CreateStringTexture(string s)
{
var temp = new Character[s.Length];
for (int i = 0; i < s.Length; i++)
{
temp[i] = CreateChar(s[i]);
}
return temp;
}
//TODO: overflow
private void DrawText(SpriteBatch sb, Vector2 pos, Rectangle rect,Character[] text,Color color)
{
int presentx = (int)pos.X;
int presenty = (int)pos.Y + yoffset;
for (int i = 0; i < text.Length; i++)
{
bool draw = true;
if (presentx > rect.Width +rect.X || presenty > rect.Height + rect.Y - Size || presentx < rect.X || presenty < yoffset - Size +rect.Y)
draw = false;
if (text[i].Char == '\n')
{
presenty += (int)Size + 2;
presentx = (int)rect.X;
continue;
}
if (text[i].Char == '\r')
continue;
if (draw)
{
if (EnableBorder)
{
if (draw)
{
}
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX - 1, presenty + text[i].OffserY - 1, text[i].Texture.Width, text[i].Texture.Height), BorderColor);
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX - 1, presenty + text[i].OffserY, text[i].Texture.Width, text[i].Texture.Height), BorderColor);
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX - 1, presenty + text[i].OffserY + 1, text[i].Texture.Width, text[i].Texture.Height), BorderColor);
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX, presenty + text[i].OffserY - 1, text[i].Texture.Width, text[i].Texture.Height), BorderColor);
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX, presenty + text[i].OffserY + 1, text[i].Texture.Width, text[i].Texture.Height), BorderColor);
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX + 1, presenty + text[i].OffserY - 1, text[i].Texture.Width, text[i].Texture.Height), BorderColor);
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX + 1, presenty + text[i].OffserY, text[i].Texture.Width, text[i].Texture.Height), BorderColor);
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX + 1, presenty + text[i].OffserY + 1, text[i].Texture.Width, text[i].Texture.Height), BorderColor);
}
if (EnableShadow)
{
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX + ShadowXOffset, presenty + text[i].OffserY + ShadowYOffset, text[i].Texture.Width, text[i].Texture.Height), ShadowColor);
}
sb.Draw(text[i].Texture, new Rectangle(presentx + text[i].OffsetX, presenty + text[i].OffserY, text[i].Texture.Width, text[i].Texture.Height), color);
}
presentx += (1 + (int)text[i].Texture.Width + text[i].OffsetX);
}
}
private Character CreateChar(char c)
{
Character ch = new Character();
try
{
if (buffer.ContainsKey(c))
{
return buffer[c];
}
if (c == '\r' || c == '\n')
{
Texture2D texture = new Texture2D(gd, baseCharacter.Texture.Width, 1);
ch.Texture = texture;
ch.Char = c;
buffer.Add(c, ch);
return ch;
}
if (c != ' ' && c != ' ')
{
var tt = GetCharBitmap(Convert.ToUInt32(c));
var charoffsety = (ascender) - tt.bitmap_top;
var charoffsetx = tt.bitmap_left;
byte[] bmp = new byte[tt.bitmap.rows * tt.bitmap.width];
Marshal.Copy(tt.bitmap.buffer, bmp, 0, bmp.Length);
Color[] colordata = new Color[tt.bitmap.rows * tt.bitmap.width];
for (int i = 0; i < colordata.Length; i++)
{
colordata[i] = new Color(255, 255, 255, bmp[i]);
}
Texture2D texture = new Texture2D(gd, tt.bitmap.width, tt.bitmap.rows);
texture.SetData<Color>(colordata);
PreMultiplyAlphas(texture);
ch.Texture = texture;
ch.OffserY = charoffsety;
ch.OffsetX = charoffsetx;
ch.Char = c;
buffer.Add(c, ch);
}
else
{
Texture2D texture = new Texture2D(gd, baseCharacter.Texture.Width, 1);
ch.Texture = texture;
buffer.Add(c, ch);
}
}
catch (Exception)
{
Texture2D texture = new Texture2D(gd, baseCharacter.Texture.Width, 1);
ch.Texture = texture;
buffer.Add(c, ch);
}
return ch;
}