func (node *Node) DrawLink(rend *sdl.Renderer) {
if node.next != nil {
rend.SetDrawColor(hexcolor(0x15f0e1))
p0 := node.Pos
p1 := node.next.Pos
rend.DrawLine(p0.X+p0.W/2, p0.Y+p0.H/2, p1.X+p1.W/2, p1.Y+p1.H/2)
}
}
func (tb *TopBar) Draw(rend *sdl.Renderer) {
rend.SetDrawColor(tb.BackgroundColor)
rend.FillRect(&tb.Pos)
rend.SetDrawColor(lighten(tb.BackgroundColor, 9))
rend.DrawLine(tb.Pos.X, tb.Pos.Y+tb.Pos.H-1, tb.Pos.X+tb.Pos.W, tb.Pos.Y+tb.Pos.H-1)
rend.SetDrawColor(darken(tb.BackgroundColor, 9))
rend.DrawLine(tb.Pos.X, tb.Pos.Y+tb.Pos.H, tb.Pos.X+tb.Pos.W, tb.Pos.Y+tb.Pos.H)
for _, w := range tb.elements_left {
w.Draw(rend)
}
if tb.element_center != nil {
tb.element_center.Draw(rend)
}
for _, w := range tb.elements_right {
w.Draw(rend)
}
}
func (canvas *CanvasPane) Draw(rend *sdl.Renderer) {
for _, n := range canvas.nodes {
n.DrawLink(rend)
}
for _, n := range canvas.nodes {
n.Draw(rend)
}
canvas.menu.Draw(rend)
if canvas.new_link != nil {
_, x, y := sdl.GetMouseState()
n0 := canvas.nodes[*canvas.new_link]
rend.SetDrawColor(hexcolor(0xffffff))
pos := n0.GetPos()
rend.DrawRect(&pos)
rend.SetDrawColor(hexcolor(0x694ae9))
rend.DrawLine(n0.GetPos().X+n0.GetPos().W/2, n0.GetPos().Y+n0.GetPos().H/2, int32(x), int32(y))
}
}