private static void ProcessFile(string inputFilename, string outputFilename, Regex keep, string keepPattern)
{
var inputFont = AdafruitGFXFontParser.ReadFile(inputFilename);
var bitmap = new MemoryStream();
var glyphs = new List <GFXglyph>();
var currentChar = inputFont.FirstChar;
char?firstChar = null;
char?lastChar = null;
var matchedGlyphsCount = 0;
var matchedGlyphsLastCount = 0;
foreach (var glyph in inputFont.Glyphs)
{
if (keep.IsMatch(currentChar.ToString()))
{
glyphs.Add(new GFXglyph
{
bitmapOffset = (int)bitmap.Length,
width = glyph.width,
height = glyph.height,
xAdvance = glyph.xAdvance,
xOffset = glyph.xOffset,
yOffset = glyph.yOffset
});
var bitmapSize = (int)Math.Ceiling((glyph.width * glyph.height) / 8.0);
bitmap.Write(inputFont.Bitmap, glyph.bitmapOffset, bitmapSize);
if (!firstChar.HasValue)
{
firstChar = currentChar;
}
lastChar = currentChar;
matchedGlyphsCount++;
matchedGlyphsLastCount = glyphs.Count;
}
else if (firstChar.HasValue)
{
// No gaps are allowed, insert dummy glyph
glyphs.Add(new GFXglyph
{
bitmapOffset = 0,
width = 0,
height = 0,
xAdvance = 0,
xOffset = 0,
yOffset = 0
});
}
currentChar++;
}
if (!firstChar.HasValue)
{
throw new ArgumentException("No characters match the specified filter");
}
// Remove the empty glyphs at the end
if (glyphs.Count > matchedGlyphsLastCount)
{
glyphs.RemoveRange(matchedGlyphsLastCount, glyphs.Count - matchedGlyphsLastCount);
}
var outputFont = new AdafruitGFXFont
{
FontName = inputFont.FontName + "Trimmed",
FirstChar = firstChar.Value,
LastChar = lastChar.Value,
YAdvance = inputFont.YAdvance,
Bitmap = bitmap.ToArray(),
Glyphs = glyphs
};
Console.WriteLine($" Kept {matchedGlyphsCount} of {inputFont.Glyphs.Count} glyphs, ~ {inputFont.SizeEstimate} > {outputFont.SizeEstimate} bytes");
Console.WriteLine();
var output = AdafruitGFXFontWriter.WriteString(outputFont);
using (var file = new StreamWriter(outputFilename))
{
file.WriteLine("/*");
file.WriteLine("");
file.WriteLine(" Generated by AdafruitGFXFontToBitmap");
file.WriteLine(" https: //github.com/MvRens/AdafruitGFXFontTools");
file.WriteLine("");
file.WriteLine(" Source: " + Path.GetFileName(inputFilename));
file.WriteLine(" Filter: " + CommentSafeRegex(keepPattern));
file.WriteLine("");
file.WriteLine("*/");
file.WriteLine("");
file.Write(output);
}
}
private static void ProcessFile(string inputFilename, string outputFilename)
{
var font = AdafruitGFXFontParser.ReadFile(inputFilename);
var minYOffset = font.Glyphs.Min(g => g.yOffset);
var maxYOffset = font.Glyphs.Max(g => g.height + g.yOffset);
var totalWidth = font.Glyphs.Sum(g => g.ActualWidth) + (font.Glyphs.Count - 1);
var maxHeight = maxYOffset - minYOffset;
var cursorY = -minYOffset;
var outputBitmap = new Bitmap(totalWidth, maxHeight);
var graphics = Graphics.FromImage(outputBitmap);
graphics.Clear(Color.Black);
var glyphX = 0;
foreach (var glyph in font.Glyphs)
{
var bitmapOffset = glyph.bitmapOffset;
var bitmapBit = 0;
var yOffset = cursorY + glyph.yOffset;
for (var y = glyph.Bounds.Top + yOffset; y < glyph.Bounds.Bottom + yOffset; y++)
{
for (var x = glyph.Bounds.Left; x < glyph.Bounds.Right; x++)
{
var pixel = font.Bitmap[bitmapOffset] & (1 << (7 - bitmapBit));
if (pixel > 0)
{
outputBitmap.SetPixel(glyphX + x, y, Color.White);
}
bitmapBit++;
// ReSharper disable once InvertIf
if (bitmapBit > 7)
{
bitmapOffset++;
bitmapBit = 0;
}
}
}
glyphX += glyph.ActualWidth;
if (glyphX >= outputBitmap.Width)
{
continue;
}
// Draw separator line
for (var y = 0; y < maxHeight; y++)
{
outputBitmap.SetPixel(glyphX, y, Color.DimGray);
}
glyphX++;
}
outputBitmap.Save(outputFilename, ImageFormat.Bmp);
}