/// <inheritdocs />
public Task RenderAsync(ITextData textData, Stream outputStream)
{
Debug.Assert(textData != null);
Debug.Assert(outputStream != null);
using (SKBitmap bitmap = GenerateBitmap(textData))
using (SKImage image = SKImage.FromBitmap(bitmap))
{
image.Encode().SaveTo(outputStream);
}
return(Task.CompletedTask);
}
public static void Initialize(ITextData textData)
{
_textData = textData;
var storedLanguage = PlayerPrefsService.Language;
var isStoredLanguageValid = Enum.IsDefined(typeof(Language), storedLanguage);
var language = isStoredLanguageValid
? (Language)storedLanguage
: Language.English;
SetLanguage(language);
}
static async Task MainAsync(string[] args)
{
using (var output = File.OpenWrite("../../../../mona.gen.png"))
{
Bitmap bitmap = Bitmap.FromFile("../../../../mona.png");
int scale = Tx.GetPerfectPixelRatios(bitmap).OrderBy(val => val).ElementAt(0);
ITextGenerator textGenerator = new BrightnessBasedGenerator(
characters: Tx.CharacterSets.Basic,
pixelSamplingRatio: scale
);
ITextData textData = await textGenerator.GenerateTextAsync(bitmap);
Font font = Font.FromTypeface(Typeface.FromName("Consolas"));
ITextRenderer textRenderer = new FontRenderer(font);
await textRenderer.RenderAsync(textData, output);
}
}
/// <inheritdocs/>
public Task RenderAsync(ITextData textData, Stream outputStream)
{
Debug.Assert(textData != null);
Debug.Assert(outputStream != null);
outputStream = (outputStream is BufferedStream) ?
outputStream : new BufferedStream(outputStream);
using (TextWriter writer = new StreamWriter(outputStream, Encoding))
{
for (var y = 0; y < textData.Height; ++y)
{
for (var x = 0; x < textData.Width; ++x)
{
writer.Write((char)textData[x, y]);
}
writer.Write(writer.NewLine);
}
}
return(Task.CompletedTask);
}
/// <summary>
/// Generates a bitmap using the provided textData and font info. Note that
/// you are responsible for calling <code>Dispose</code> on the returned bitmap.
/// </summary>
/// <param name="textData">The <code>ITextData</code> to read from</param>
/// <returns>The generated <code>SKBitmap</code></returns>
public SKBitmap GenerateBitmap(ITextData textData)
{
using (var paint = new SKPaint())
{
paint.IsAntialias = this.ShouldAntialias;
paint.IsDither = this.ShouldDither;
paint.IsAutohinted = this.ShouldHint;
var font = this.Font;
paint.Typeface = font.Typeface.SkiaTypeface;
paint.TextSize = font.TextSize;
paint.TextEncoding = SKTextEncoding.Utf8;
paint.SubpixelText = true;
paint.DeviceKerningEnabled = false;
paint.Color = font.Color.SkiaColor;
var backgroundColor = this.BackgroundColor;
int textWidth = textData.Width;
int textHeight = textData.Height;
// spacing reserved for a single character
SKFontMetrics fontMetrics = paint.FontMetrics;
int characterSpacing = font.CharacterSpacing;
Debug.Assert(characterSpacing > 0);
// bitmap may not be big enough for all text if using
// non-monospace characters and/or characterSize/ is not
// sufficient. Too bad.
int bitmapWidth = characterSpacing * textWidth;
int bitmapHeight = characterSpacing * textHeight;
Debug.Assert(bitmapWidth > 0);
Debug.Assert(bitmapHeight > 0);
// NOTE: this will need to be disposed by the caller.
var bitmap = new SKBitmap(
bitmapWidth, bitmapHeight,
SKImageInfo.PlatformColorType, SKAlphaType.Premul
);
using (var canvas = new SKCanvas(bitmap))
{
bitmap.Erase(backgroundColor);
var parallelOptions = new ParallelOptions {
MaxDegreeOfParallelism = 1
};
Parallel.For(0, textHeight, parallelOptions, y =>
{
Parallel.For(0, textWidth, x =>
{
string charAsString = textData[x, y].ToString();
// dimensions of actual printed chars
float charWidth = paint.MeasureText(charAsString);
float charHeight = -fontMetrics.Ascent;
Debug.Assert(charWidth > 0);
Debug.Assert(charHeight > 0);
// the actual position to render them.
// they should be centered in the space allocated to them.
float textX = (x * characterSpacing) + (characterSpacing - charWidth) * 0.5f;
float textY = (y * characterSpacing) + (characterSpacing * 0.75f);
canvas.DrawText(
text: textData[x, y].ToString(),
x: textX,
y: textY,
paint: paint
);
});
});
}
return(bitmap);
}
}
public TextController()
{
_cdtRepo = new TextData();;
}
public int Run(ITextData textData)
{
return(textData.GetNumberOf("Black") + textData.GetNumberOf("White"));
}
public ContentData()
{
_areaTextData = new TextData();
}
public bool Run(ITextData textData)
{
return(textData.TotalSymbols > _minimumSymbols);
}
