func drawPrep() {
gl.Disable(gl.DEPTH_TEST)
gl.Disable(gl.TEXTURE_2D)
gl.PolygonMode(gl.FRONT_AND_BACK, gl.FILL)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.ClearStencil(0)
gl.Clear(gl.STENCIL_BUFFER_BIT)
}
func (g *Gui) Draw() {
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
region := g.root.Render_region
gl.Ortho(float64(region.X), float64(region.X+region.Dx), float64(region.Y), float64(region.Y+region.Dy), 1000, -1000)
gl.ClearColor(0, 0, 0, 1)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
g.root.Draw(region)
if g.FocusWidget() != nil {
g.FocusWidget().DrawFocused(region)
}
}