public System.Drawing.Bitmap TextToBitmap(string text, out Size2F size, RawColor4 bgcolor, d2.TextAntialiasMode aamode, int maxWidth = 1000, int maxHeight = 1000)
{
var sz = GetTextSize(text, maxWidth, maxHeight);
int pixelWidth = (int)(sz.Width * 2);
int pixelHeight = (int)(sz.Height * 2);
var d2dRenderTarget = new Bitmap1(d2dContext, new Size2(pixelWidth, pixelHeight), d2dBitmapProps);
if (d2dContext.Target != null)
{
d2dContext.Target.Dispose();
}
d2dContext.Target = d2dRenderTarget; // associate bitmap with the d2d context
// Draw Text
TextLayout textLayout = new TextLayout(dwFactory, text, textFormat, pixelWidth, pixelHeight);
//d2dContext.TextRenderingParams = new RenderingParams(dwFactory, 1, 0, 0, PixelGeometry.Flat, renderingMode);
d2dContext.TextAntialiasMode = aamode;
d2dContext.BeginDraw();
d2dContext.Clear(bgcolor);
d2dContext.DrawTextLayout(new RawVector2(0, 0), textLayout, textBrush, DrawTextOptions.EnableColorFont);
d2dContext.EndDraw();
size = new Size2F(textLayout.Metrics.Width, textLayout.Metrics.Height);
textLayout.Dispose();
// Copy to MemoryStream
var stream = new MemoryStream();
var encoder = new wic.PngBitmapEncoder(imagingFactory);
encoder.Initialize(stream);
var bitmapFrameEncode = new wic.BitmapFrameEncode(encoder);
bitmapFrameEncode.Initialize();
bitmapFrameEncode.SetSize(pixelWidth, pixelHeight);
bitmapFrameEncode.SetPixelFormat(ref wicPixelFormat);
// this is the trick to write D2D1 bitmap to WIC
var imageEncoder = new wic.ImageEncoder(imagingFactory, d2dDevice);
var imageParam = new wic.ImageParameters(d2PixelFormat, dpi, dpi, 0, 0, pixelWidth, pixelHeight);
imageEncoder.WriteFrame(d2dRenderTarget, bitmapFrameEncode, imageParam);
bitmapFrameEncode.Commit();
encoder.Commit();
imageEncoder.Dispose();
encoder.Dispose();
bitmapFrameEncode.Dispose();
d2dRenderTarget.Dispose();
// Convert To Bitmap
byte[] data = stream.ToArray();
stream.Seek(0, SeekOrigin.Begin);
var bmp = new System.Drawing.Bitmap(stream);
stream.Dispose();
return(bmp);
}
// todo: use this renderer; it's much better for monochrome fonts. for color there's still no better solution i know of.
//// https://stackoverflow.com/questions/9080231/how-to-save-geometry-as-image
//public static GenerateEmojiBitmapResults GenerateFontMap2(string fontName, int WidthAndHeight, string outputFileName)
//{
// GlyphTypeface font;
// if (File.Exists(fontName))
// {
// font = new GlyphTypeface(new Uri(fontName));
// }
// else
// {
// Typeface face = new Typeface(fontName);
// face.TryGetGlyphTypeface(out font);
// }
// //int ColumnCount = 10;
// //int MaxDrawCount = 30; // use int.MaxValue to draw them all
// double fontSize = WidthAndHeight;
// // the height of each cell has to include over/underhanging glyphs
// SizeF cellSize = new SizeF((float)fontSize, (float)(fontSize * font.Height));
// var Glyphs = from glyphIndex in font.CharacterToGlyphMap.Values
// select font.GetGlyphOutline(glyphIndex, fontSize, 1d);
// int ColumnCount = (int)Math.Ceiling(Math.Sqrt(Glyphs.Count()));
// // now create the visual we'll draw them to
// DrawingVisual viz = new DrawingVisual();
// //int drawCount = -1;
// using (DrawingContext dc = viz.RenderOpen())
// {
// foreach (var g in Glyphs)
// {
// drawCount++;
// if (g.IsEmpty()) continue; // don't draw the blank ones
// // center horizontally in the cell
// double xOffset = (drawCount % ColumnCount) * cellSize.Width + cellSize.Width / 2d - g.Bounds.Width / 2d;
// // place the character on the baseline of the cell
// double yOffset = (drawCount / ColumnCount) * cellSize.Height + fontSize * font.Baseline;
// dc.PushTransform(new TranslateTransform(xOffset, yOffset));
// dc.DrawGeometry(System.Windows.Media.Brushes.Red, null, g);
// dc.Pop(); // get rid of the transform
// }
// }
// int RowCount = drawCount / ColumnCount;
// if (drawCount % ColumnCount != 0)
// RowCount++; // to include partial rows
// int bitWidth = (int)Math.Ceiling((double)(cellSize.Width * ColumnCount));
// int bitHeight = (int)Math.Ceiling((double)(cellSize.Height * RowCount));
// RenderTargetBitmap bmp = new RenderTargetBitmap(
// bitWidth, bitHeight,
// 96, 96,
// PixelFormats.Pbgra32);
// bmp.Render(viz);
// PngBitmapEncoder encoder = new PngBitmapEncoder();
// encoder.Frames.Add(BitmapFrame.Create(bmp));
// using (FileStream file = new FileStream(outputFileName, FileMode.Create))
// encoder.Save(file);
//}
public static GenerateEmojiBitmapResults GenerateEmojiBitmap(string fontName, int cellWidth, int cellHeight,
float additionalScale, int shiftX, int shiftY, IEnumerable <EmojiInfo> codepointsToInclude,
System.Drawing.Color[] backgroundPalette, System.Drawing.Color[] textPalette, float?aspectToleranceFromTarget, bool tryToFit,
System.Windows.FontStyle fontStyle, System.Windows.FontWeight fontWeight, System.Windows.FontStretch fontStretch,
bool strictGlyphChecking, d2.TextAntialiasMode aaMode)
{
System.Windows.Media.FontFamily fm = new System.Windows.Media.FontFamily(fontName);
System.Windows.Media.Typeface tf = new System.Windows.Media.Typeface(fm, fontStyle, fontWeight, fontStretch);
PetsciiMapgen.ProgressReporter pr = new PetsciiMapgen.ProgressReporter((ulong)codepointsToInclude.Count() * (ulong)backgroundPalette.Length * (ulong)textPalette.Length);
if (!tf.TryGetGlyphTypeface(out System.Windows.Media.GlyphTypeface gtf))
{
PetsciiMapgen.Log.WriteLine("!!!!!!!!!! FONT FAMILY HAS NO GLYPH MAP; you will end up with unsupported glyphs in the map.");
// throw new Exception();
}
// select codepoints to actually use
PetsciiMapgen.Utils.ValueRangeInspector rangeX = new PetsciiMapgen.Utils.ValueRangeInspector();
PetsciiMapgen.Utils.ValueRangeInspector rangeY = new PetsciiMapgen.Utils.ValueRangeInspector();
PetsciiMapgen.Utils.ValueRangeInspector allAspects = new PetsciiMapgen.Utils.ValueRangeInspector();
PetsciiMapgen.Utils.ValueRangeInspector selectedAspects = new PetsciiMapgen.Utils.ValueRangeInspector();
int rejectedBecauseNotInTypeface = 0;
int rejectedBecauseAspect = 0;
int targetWidth = cellWidth;
int targetHeight = cellHeight;
float targetAspect = (float)targetWidth / targetHeight;
EmojiTest.Direct2DText dt = new EmojiTest.Direct2DText();
dt.SetFont(fontName, targetHeight);
var emoji = codepointsToInclude.Select(e =>
{
pr.Visit();
GlyphData ret = new GlyphData();
ret.info = e;
//ret.str = char.ConvertFromUtf32(cp);
var sz = dt.GetTextSize(ret.info.str);
ret.width = sz.Width;
ret.height = sz.Height;
rangeX.Visit(ret.width);
rangeY.Visit(ret.height);
allAspects.Visit(ret.width / ret.height);
ret.scaleNeeded = 1;
if (tryToFit)
{
if (ret.height > 0 && ret.width > 0)
{
float scaleNeededY = (float)targetHeight / ret.height;// factor to match target
float scaleNeededX = (float)targetWidth / ret.width;
ret.scaleNeeded = Math.Min(scaleNeededX, scaleNeededY);
}
else
{
ret.scaleNeeded = -1;
}
}
return(ret);
})
.Where(o =>
{
if (o.info.forceInclude)
{
return(true);
}
if (o.info.str == "\r" || o.info.str == "\n")
{
return(false);
}
if (gtf != null)
{
if (!gtf.CharacterToGlyphMap.ContainsKey(o.info.cps[0]))
{
rejectedBecauseNotInTypeface++;
if (strictGlyphChecking)
{
return(false);
}
}
}
float aspect = o.width / o.height;
float da = Math.Abs(aspect - targetAspect);
if (aspectToleranceFromTarget.HasValue && da > aspectToleranceFromTarget)
{
rejectedBecauseAspect++;
return(false);
}
selectedAspects.Visit(aspect);
return(true);
})
.OrderBy(o => o.scaleNeeded).ToArray();
PetsciiMapgen.Log.WriteLine("EMOJI font encountered aspect ratios between {0}", allAspects);
PetsciiMapgen.Log.WriteLine("Chars rejected because they don't have glyphs in this typeface: {0:N0}", rejectedBecauseNotInTypeface);
PetsciiMapgen.Log.WriteLine("Chars rejected because aspect ratio out of range: {0:N0}", rejectedBecauseAspect);
if (aspectToleranceFromTarget.HasValue)
{
PetsciiMapgen.Log.WriteLine("EMOJI font allowed aspect ratios between {0}", selectedAspects);
}
int totalCharCount = emoji.Count() * backgroundPalette.Length * textPalette.Length;
int scaleChanges = 0;
int columns = (int)Math.Ceiling(Math.Sqrt(totalCharCount));
int rows = columns;// we're aiming for square bitmap.
int imgWidth = columns * targetWidth;
int imgHeight = rows * targetHeight;
List <GlyphData> fullEmoji = new List <GlyphData>(totalCharCount);
if (emoji.Length < 2)
{
throw new Exception("NOt enough glyphs to generate anything meaningful.");
}
foreach (var backgroundColor in backgroundPalette)
{
foreach (var textColor in textPalette)
{
var bmp = new System.Drawing.Bitmap(imgWidth, imgHeight);
using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bmp))
{
float lastScale = 0;
//int iemoji = 0;
var pr2 = new PetsciiMapgen.ProgressReporter((ulong)emoji.Count());
//foreach (var e in emoji)
for (int iemoji = 0; iemoji < emoji.Length; ++iemoji)
{
var e = emoji[iemoji];
pr2.Visit();
if (e.scaleNeeded <= 0)
{
continue;
}
if (Math.Abs(lastScale - e.scaleNeeded) > 0.001)
{
scaleChanges++;
dt.SetFont(fontName, targetHeight * e.scaleNeeded * additionalScale);
}
//SharpDX.Size2F sz;
var n = new GlyphData(e);
fullEmoji.Add(n);
RawColor4 bg = new RawColor4(backgroundColor.R / 255.0f, backgroundColor.G / 255.0f, backgroundColor.B / 255.0f, 1);
dt.SetColor(textColor);
n.bmp = dt.TextToBitmap(n.info.str, out n.bmpSize, bg, aaMode);
// offset where to blit from, so it's centered.
int ox = (int)((n.bmpSize.Width - targetWidth) / 2);
int oy = (int)((n.bmpSize.Height - targetHeight) / 2);
n.blitSourcRect = new System.Drawing.Rectangle(ox - shiftX, oy - shiftY, targetWidth, targetHeight);
n.bgColor = backgroundColor;
n.textColor = textColor;
//int y = iemoji / columns;
//int x = iemoji % columns;
//g.DrawImage(bmpChar,
// new System.Drawing.Rectangle(x * targetWidth, y * targetHeight, targetWidth, targetHeight),
// new System.Drawing.Rectangle(ox - shiftX, oy - shiftY, targetWidth, targetHeight), System.Drawing.GraphicsUnit.Pixel
// );
//bmpChar.Dispose();
//iemoji++;
}
}
}
}
PetsciiMapgen.Log.WriteLine("Scale changes: {0}", scaleChanges);
PetsciiMapgen.Log.WriteLine("Total char count: {0}", fullEmoji.Count);
PetsciiMapgen.Log.WriteLine("Image size to hold entire colored charset: {0}, {1}", imgWidth, imgHeight);
GenerateEmojiBitmapResults rv = new GenerateEmojiBitmapResults();
//rv.bmp = bmp;
rv.columns = columns;
rv.rows = rows;
rv.AllCells = fullEmoji.ToArray();
return(rv);
}
