private void OnRender(object sender, double delta)
{
GLDraw.Fill(ref backgroundColor);
var root = (PBTTaskTreeControl <DataType>)TreeContainer.Controls.First().Controls.FirstOrDefault(c => c is PBTTaskTreeControl <DataType>);
if (root != null)
{
lines.Clear();
float scale = Math.Min(InnerWidth / (float)root.Width, InnerHeight / (float)root.Height);
RenderSubtree(root, 0, 0, scale);
GLDraw.PrepareCustomDrawing();
var sr = GLDraw.CurrentScreenRect;
GL.Color3(Color.White);
GL.LineWidth(scale);
GL.Enable(EnableCap.LineSmooth);
GL.Begin(PrimitiveType.Lines);
for (int i = 0; i < lines.Count; i++)
{
GL.Vertex2(sr.X + lines[i].Item1.X, sr.Y + lines[i].Item1.Y);
GL.Vertex2(sr.X + lines[i].Item2.X, sr.Y + lines[i].Item2.Y);
}
GL.End();
GL.LineWidth(2.0f);
GL.Begin(PrimitiveType.LineLoop);
GL.Vertex2(sr.X + TreeContainer.ScrollPosition.X * scale, sr.Y + TreeContainer.ScrollPosition.Y * scale);
GL.Vertex2(sr.X + (TreeContainer.ScrollPosition.X + TreeContainer.InnerWidth) * scale, sr.Y + TreeContainer.ScrollPosition.Y * scale);
GL.Vertex2(sr.X + (TreeContainer.ScrollPosition.X + TreeContainer.InnerWidth) * scale, sr.Y + (TreeContainer.ScrollPosition.Y + TreeContainer.InnerHeight) * scale);
GL.Vertex2(sr.X + TreeContainer.ScrollPosition.X * scale, sr.Y + (TreeContainer.ScrollPosition.Y + TreeContainer.InnerHeight) * scale);
GL.End();
}
}
private void OnRender(object sender, double delta)
{
if (Subtrees.Count == 0)
{
return;
}
// draw connection lines
GLDraw.PrepareCustomDrawing();
var sr = GLDraw.CurrentScreenRect;
GL.Color3(Color.White);
GL.LineWidth(1.0f);
GL.Enable(EnableCap.LineSmooth);
GL.Begin(PrimitiveType.Lines);
for (int i = 0; i < Subtrees.Count; i++)
{
var src = new OpenTK.Vector2(
sr.X + TaskControl.X + TaskControl.Width * (i + 1) / (Subtrees.Count + 1),
sr.Y + TaskControl.Outer.Bottom + 1);
var dst = new OpenTK.Vector2(
sr.X + Subtrees[i].Parent.X + Subtrees[i].Parent.Inner.X + Subtrees[i].X + Subtrees[i].Inner.X + Subtrees[i].TaskControl.X + Subtrees[i].TaskControl.Width / 2,
sr.Y + Subtrees[i].Parent.Y + Subtrees[i].Parent.Inner.Y + Subtrees[i].Y + Subtrees[i].Inner.Y + Subtrees[i].TaskControl.Y + 1);
float srcX2 = src.X + (dst.X - src.X) * 0.02f;
float dstX2 = dst.X - (dst.X - src.X) * 0.02f;
GL.Vertex2(src);
GL.Vertex2(srcX2, src.Y + 2);
GL.Vertex2(srcX2, src.Y + 2);
GL.Vertex2(dstX2, dst.Y - 2);
GL.Vertex2(dstX2, dst.Y - 2);
GL.Vertex2(dst);
}
GL.End();
}