func drawSelection(p1, p2 Point) {
min, max := minMaxPoints(p1, p2)
gl.Color3ub(255, 0, 0)
gl.Begin(gl.LINES)
gl.Vertex2i(int(min.X), int(min.Y))
gl.Vertex2i(int(max.X), int(min.Y))
gl.Vertex2i(int(min.X), int(min.Y))
gl.Vertex2i(int(min.X), int(max.Y))
gl.Vertex2i(int(max.X), int(max.Y))
gl.Vertex2i(int(max.X), int(min.Y))
gl.Vertex2i(int(max.X), int(max.Y))
gl.Vertex2i(int(min.X), int(max.Y))
gl.End()
gl.Color3ub(255, 255, 255)
}
func drawProgress(w, h, percents, pending int) {
switch pending {
case None:
gl.Color3ub(200, 0, 0)
drawQuad(0, h-BarSize, w, BarSize, 0, 0, 1, 1)
gl.Color3ub(255, 255, 255)
return
case Small:
gl.Color3ub(200, 200, 0)
case Big:
gl.Color3ub(200, 200, 0)
drawQuad(0, h-BarSize, w, BarSize, 0, 0, 1, 1)
gl.Color3ub(200, 0, 0)
}
step := float32(w) / 100
drawQuad(0, h-BarSize, int(float32(percents)*step), BarSize, 0, 0, 1, 1)
gl.Color3ub(255, 255, 255)
}