bendns' repos / latex-bot
latex bot discord
Diffstat (limited to 'addons/GodoTeX/LaTeXture.cs')
-rw-r--r--addons/GodoTeX/LaTeXture.cs53
1 files changed, 53 insertions, 0 deletions
diff --git a/addons/GodoTeX/LaTeXture.cs b/addons/GodoTeX/LaTeXture.cs
new file mode 100644
index 0000000..87bd293
--- /dev/null
+++ b/addons/GodoTeX/LaTeXture.cs
@@ -0,0 +1,53 @@
+using Godot;
+using System.IO;
+using CSharpMath.SkiaSharp;
+using CSharpMath.Rendering;
+using SkiaSharp;
+
+[Tool]
+public class LaTeXture : ImageTexture {
+ public string LatexExpression;
+ public float FontSize = 40f;
+ public Color MathColor = new Color(0,0,0,1);
+ public bool AntiAliasing = true;
+ public bool Fill = true;
+ public bool ShowError = true;
+
+ private MathPainter Painter = new MathPainter{};
+
+ public float Width;
+ public float Height;
+ public float OffsetX;
+ public float OffsetY;
+
+ public void Render() {
+ var r = (byte)(255*this.MathColor.r);
+ var g = (byte)(255*this.MathColor.g);
+ var b = (byte)(255*this.MathColor.b);
+ var a = (byte)(255*this.MathColor.a);
+
+ var paintStyle = CSharpMath.Rendering.FrontEnd.PaintStyle.Stroke;
+ if (this.Fill) {
+ paintStyle = CSharpMath.Rendering.FrontEnd.PaintStyle.Fill;
+ }
+
+ this.Painter = new MathPainter {AntiAlias = this.AntiAliasing, TextColor = new SKColor(r, g, b, a), FontSize = this.FontSize, LaTeX = @"\raisebox{40mu}{}\raisebox{-40mu}{}" + this.LatexExpression + @"\:\raisebox{1mu}", DisplayErrorInline = this.ShowError, PaintStyle = paintStyle};
+
+ var measure = this.Painter.Measure();
+ this.Width = measure.Width;
+ this.Height = measure.Height;
+ this.OffsetX = measure.X;
+ this.OffsetY = measure.Y;
+
+ using (var png = this.Painter.DrawAsStream()) {
+ var image = new Godot.Image();
+
+ using (var memoryStream = new MemoryStream()) {
+ png.CopyTo(memoryStream);
+ image.LoadPngFromBuffer(memoryStream.ToArray());
+ }
+
+ this.CreateFromImage(image);
+ };
+ }
+}