private IkonComposite loadAtlas()
{
var atlasFile = new FileInfo(AtlasImagePath);
var metadataFile = new FileInfo(AtlasIkonPath);
var rootFolder = SettingsWinforms.Get.DataRootPath ?? "";
var extraSprites = new DirectoryInfo(rootFolder + SpritesPath).
GetFiles().
Where(x => x.Name != atlasFile.Name && x.Name != metadataFile.Name).
ToList();
IkonComposite ikonData;
using (var ikonParser = new IkonParser(new StreamReader(rootFolder + AtlasIkonPath)))
ikonData = ikonParser.ParseNext(AtlasTag).To <IkonComposite>();
using (var atlasImage = new Bitmap(rootFolder + AtlasImagePath))
{
if (extraSprites.Any())
{
#if DEBUG
System.Diagnostics.Trace.WriteLine("Adding loose sprites to atlas: " + string.Join(" ", extraSprites.Select(x => x.Name)));
#endif
var atlasBuilder = new AtlasBuilder(ikonData, SpriteMargin, atlasImage.Size);
using (Graphics g = Graphics.FromImage(atlasImage))
{
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.None;
foreach (var spriteFile in extraSprites)
{
using (var sprite = new Bitmap(spriteFile.FullName))
{
var spriteRegion = atlasBuilder.Add(sprite.Size);
g.DrawImage(sprite, spriteRegion);
var textureCoords = new IkonArray
{
serializeSpriteCorner(spriteRegion.Left, spriteRegion.Top, atlasImage.Size),
serializeSpriteCorner(spriteRegion.Right, spriteRegion.Top, atlasImage.Size),
serializeSpriteCorner(spriteRegion.Right, spriteRegion.Bottom, atlasImage.Size),
serializeSpriteCorner(spriteRegion.Left, spriteRegion.Bottom, atlasImage.Size)
};
ikonData.Add(Path.GetFileNameWithoutExtension(spriteFile.Name), textureCoords);
}
}
}
}
//TODO(later) move to atlas generator
var atlasData = new ColorMap(atlasImage);
for (int y = 0; y < atlasData.Height; y++)
{
for (int x = 0; x < atlasData.Width; x++)
{
if (atlasData[x, y].A == 0)
{
var colorSum = new Vector4();
var alphaSum = 0f;
foreach (var color in atlasData.Subregion(x - 1, y - 1, x + 1, y + 1))
{
colorSum += new Vector4(color.R, color.G, color.B, 1) * color.A;
alphaSum += color.A;
}
if (alphaSum > 0)
{
colorSum /= alphaSum;
atlasData[x, y] = new Color4(colorSum.X, colorSum.Y, colorSum.Z, 0);
}
}
}
}
this.textureId = TextureUtils.CreateTexture(atlasData);
this.Size = new Vector2(atlasImage.Width, atlasImage.Height);
}
return(ikonData);
}
private void prepare(string text)
{
this.Initialize();
var missinCharacters = new HashSet <char>();
foreach (char c in text)
{
if (!this.characterInfos.ContainsKey(c) && !char.IsWhiteSpace(c))
{
missinCharacters.Add(c);
}
}
if (missinCharacters.Count == 0)
{
return;
}
foreach (char c in missinCharacters)
{
var path = new GraphicsPath();
path.AddString(c.ToString(), font.FontFamily, (int)font.Style, font.Size, new Point(0, 0), StringFormat.GenericTypographic);
path.Flatten();
var contures = getContures(path).ToList();
var minX = (int)Math.Floor(path.PathPoints.Min(p => p.X));
var maxX = (int)Math.Ceiling(path.PathPoints.Max(p => p.X));
var minY = (int)Math.Floor(path.PathPoints.Min(p => p.Y));
var maxY = (int)Math.Ceiling(path.PathPoints.Max(p => p.Y));
path.Dispose();
var width = maxX - minX;
var height = maxY - minY;
var rect = this.textureBuilder.Add(new Size(width + SdfPadding * 2, height + SdfPadding * 2));
var distField = new double[rect.Size.Height, rect.Size.Width];
for (int y = 0; y < rect.Size.Height; y++)
{
for (int x = 0; x < rect.Size.Width; x++)
{
var fromP = new Vector2(x + minX - SdfPadding, y + minY - SdfPadding);
var minDist = Math.Min(contures.Min(shape => shape.Distance(fromP)), SdfPadding);
if (contures.Sum(shape => shape.RayHits(fromP)) % 2 != 0)
{
minDist *= -1;
}
distField[y, x] = -minDist / SdfPadding / 2 + 0.5;
}
}
for (int y = 0; y < rect.Size.Height; y++)
{
for (int x = 0; x < rect.Size.Width; x++)
{
this.textureData[rect.X + x, rect.Y + y] = Color.FromArgb((int)(distField[y, x] * 255), 255, 255, 255);
}
}
this.characterInfos[c] = new CharTextureInfo(
rect,
this.textureData.Width, this.textureData.Height,
rect.Size.Width / font.Size,
rect.Size.Height / font.Size,
(minX + maxX) / font.Size / 2,
-(minY + maxY) / font.Size / 2,
maxX / font.Size,
maxY / font.Size
);
}
TextureUtils.UpdateTexture(this.TextureId, this.textureData);
}
