2019-04-07 23:14:55 +02:00
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using OpenTK;
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using OpenTK.Graphics.OpenGL;
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using Switch_Toolbox.Library;
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namespace Switch_Toolbox.Library.Forms
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{
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2019-04-08 23:01:31 +02:00
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public class Abstract2DDrawable
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{
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public virtual void Prepare(GLControl2D control)
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{
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}
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public virtual void Draw(GLControl2D control)
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{
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}
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}
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2019-04-07 23:14:55 +02:00
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public class GLControl2D : GLControl
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{
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2019-04-08 23:01:31 +02:00
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public GLControl2D() {
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InitializeComponent();
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}
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public List<Abstract2DDrawable> Drawables = new List<Abstract2DDrawable>();
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public float ZoomFactor = 1;
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2019-04-07 23:14:55 +02:00
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private void InitializeComponent()
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{
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this.SuspendLayout();
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//
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// GLControl2D
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//
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this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
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this.Name = "GLControl2D";
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this.Paint += new System.Windows.Forms.PaintEventHandler(this.GLControl2D_Paint);
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this.ResumeLayout(false);
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}
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private void GLControl2D_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
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{
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MakeCurrent();
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2019-04-08 23:01:31 +02:00
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SetupRendering();
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GL.ClearColor(System.Drawing.Color.FromArgb(0, 0, 40));
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2019-04-07 23:14:55 +02:00
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GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
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GL.Disable(EnableCap.Texture2D);
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2019-04-08 23:01:31 +02:00
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foreach (var drawable in Drawables)
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drawable.Draw(this);
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2019-04-07 23:14:55 +02:00
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SwapBuffers();
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}
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2019-04-08 23:01:31 +02:00
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private void SetupRendering()
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{
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GL.Viewport(0, 0, Width, Height);
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GL.MatrixMode(MatrixMode.Projection);
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GL.PushMatrix();
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GL.LoadIdentity();
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GL.Ortho(0, Width * 225, Height * 225, 0, -1, 1);
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GL.MatrixMode(MatrixMode.Modelview);
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GL.PushMatrix();
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GL.LoadIdentity();
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// Draw over everything
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GL.Disable(EnableCap.DepthTest);
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GL.Disable(EnableCap.CullFace);
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}
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public void AddCircle(Vector2 Position, float Scale = 1) {
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Drawables.Add(new Circle2D(Position));
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}
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public class Circle2D : Abstract2DDrawable
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{
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public float Radius = 1;
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public Vector2 Position = new Vector2(0);
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public Circle2D(Vector2 position)
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{
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Position = position;
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}
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public override void Draw(GLControl2D control)
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{
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GL.PushMatrix();
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GL.Translate(Position.X, Position.Y, 0);
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GL.Color4(System.Drawing.Color.Red);
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GL.Begin(PrimitiveType.LineLoop);
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for (int i = 0; i <= 300; i++)
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{
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double angle = 2 * Math.PI * i / 300;
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double x = Math.Cos(angle);
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double y = Math.Sin(angle);
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GL.Vertex2(x, y);
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}
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GL.End();
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GL.PopMatrix();
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}
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}
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public class Rectangle2D : Abstract2DDrawable
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{
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public float Width = 600;
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public float Height = 400;
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public Vector2 Position = new Vector2(0);
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public Rectangle2D(float width, float height, Vector2 position) {
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Width = width;
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Height = height;
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Position = position;
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}
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public override void Draw(GLControl2D control)
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{
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GL.PushMatrix();
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GL.Translate(Position.X, Position.Y, 0);
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GL.Color4(System.Drawing.Color.White);
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GL.Begin(PrimitiveType.Quads);
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GL.TexCoord2(-1, -1);
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GL.Vertex3(-Width, -Height, 0);
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GL.TexCoord2(0, -1);
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GL.Vertex3(Width, -Height, 0);
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GL.TexCoord2(0, 0);
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GL.Vertex3(Width, Height, 0);
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GL.TexCoord2(-1, 0);
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GL.Vertex3(-Width, Height, 0);
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GL.End();
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GL.PopMatrix();
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}
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}
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public void AddRectangle(float Width, float Height, Vector2 Position) {
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Drawables.Add(new Rectangle2D(Width, Height, Position));
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}
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2019-04-07 23:14:55 +02:00
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}
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}
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