public static System.IO.Stream WriteTextToImage(string text)
{
using (SixLabors.ImageSharp.Image image = SixLabors.ImageSharp.Image <SixLabors.ImageSharp.PixelFormats.Rgba32> .Load("Assets/share-bg.png"))
{
SixLabors.Fonts.FontCollection fontCollection = new SixLabors.Fonts.FontCollection();
SixLabors.Fonts.Font regularFont = fontCollection.Install("Assets/TitilliumWeb-SemiBold.ttf").CreateFont(24, SixLabors.Fonts.FontStyle.Regular);
SixLabors.Fonts.Font italicFont = fontCollection.Install("Assets/TitilliumWeb-BoldItalic.ttf").CreateFont(24, SixLabors.Fonts.FontStyle.Italic);
image.Mutate(x => x.DrawText(text, regularFont, SixLabors.ImageSharp.Color.White, new SixLabors.ImageSharp.PointF(100, 100)));
System.IO.MemoryStream stream = new System.IO.MemoryStream();
image.Save(stream, new SixLabors.ImageSharp.Formats.Png.PngEncoder());
stream.Position = 0;
return(stream);
}
}
static void PrintSystemFonts()
{
var collection = new SixLabors.Fonts.FontCollection();
System.Collections.Generic.IEnumerable <FontFamily> families = SystemFonts.Collection.Families;
IOrderedEnumerable <FontFamily> orderd = families.OrderBy(x => x.Name);
int len = families.Max(x => x.Name.Length);
foreach (FontFamily f in orderd)
{
Console.Write(f.Name.PadRight(len));
Console.Write('\t');
Console.Write(string.Join(",", f.AvailableStyles.OrderBy(x => x).Select(x => x.ToString())));
Console.WriteLine();
}
}
/// <summary>
/// Draw square boxes around each area to approximate how they would behave in an offline app
/// </summary>
/// <param name="info">the image information for drawing</param>
/// <param name="items">the elements to draw.</param>
/// <returns>byte array of the generated .png tile image</returns>
public byte[] DrawOfflineEstimatedAreas(ImageStats info, List <DbTables.Place> items)
{
//TODO retest this.
var image = new Image <Rgba32>(info.imageSizeX, info.imageSizeY);
var bgColor = Rgba32.ParseHex("00000000");
image.Mutate(x => x.Fill(bgColor));
var fillColor = Rgba32.ParseHex("000000");
var strokeColor = Rgba32.ParseHex("000000");
var placeInfo = Standalone.Standalone.GetPlaceInfo(items.Where(i =>
i.IsGameElement
).ToList());
//this is for rectangles.
foreach (var pi in placeInfo)
{
var rect = PlaceInfoToRect(pi, info);
fillColor = Rgba32.ParseHex(TagParser.PickStaticColorForArea(pi.Name));
image.Mutate(x => x.Fill(fillColor, rect));
image.Mutate(x => x.Draw(strokeColor, 3, rect));
}
image.Mutate(x => x.Flip(FlipMode.Vertical));; //inverts the inverted image again!
foreach (var pi in placeInfo)
{
//NOTE: would be better to load fonts once and share that for the app's lifetime.
var fonts = new SixLabors.Fonts.FontCollection();
var family = fonts.Add("fontHere.ttf");
var font = family.CreateFont(12, FontStyle.Regular);
var rect = PlaceInfoToRect(pi, info);
image.Mutate(x => x.DrawText(pi.Name, font, strokeColor, new PointF((float)(pi.lonCenter * info.pixelsPerDegreeX), (float)(pi.latCenter * info.pixelsPerDegreeY))));
}
image.Mutate(x => x.Flip(FlipMode.Vertical)); //Plus codes are south-to-north, so invert the image to make it correct.
var ms = new MemoryStream();
image.SaveAsPng(ms);
return(ms.ToArray());
}
private Visualizer()
{
var fontDir = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Fonts);
var dir = new DirectoryInfo(fontDir);
var arialFile = dir.EnumerateFiles("arial.ttf").First();
var fonts = new FontCollection();
var arial = fonts.Install(arialFile.FullName);
shapeGraphicsOptions = new ShapeGraphicsOptions();
foregroundBrush = new SolidBrush(Color.Black);
edgeThickness = 1;
font = arial.CreateFont(12);
nodeHeight = 24;
nodeSegmentWidth = 50;
layerHeight = nodeHeight * 3;
pageMargin = 12;
drawables = new List <Drawable>();
}
/// <summary>
/// Initializes a new instance of the <see cref="FontFamily"/> class.
/// </summary>
/// <param name="name">The name.</param>
/// <param name="collection">The collection.</param>
/// <param name="culture">The culture the family was extracted against</param>
internal FontFamily(string name, FontCollection collection, CultureInfo culture)
{
this.collection = collection ?? throw new ArgumentNullException(nameof(collection));
this.Name = name;
this.Culture = culture;
}
/// <summary>
/// Initializes a new instance of the <see cref="FontFamily"/> class.
/// </summary>
/// <param name="name">The name.</param>
/// <param name="collection">The collection.</param>
internal FontFamily(string name, FontCollection collection)
{
this.collection = collection;
this.Name = name;
}
