func (cfg *Config) Texture(rend *sdl.Renderer, key string) *sdl.Texture {
surface := sdl.Load(cfg.data[key])
if surface == nil {
log.Fatal("Failed to load " + cfg.data[key])
}
defer surface.Free()
return rend.CreateTextureFromSurface(surface)
}
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 (button *Button) Draw(rend *sdl.Renderer) {
w := button.Pos.W
state := button.State
if state > 2 {
state = 2
}
rend.Copy(button.texture, &sdl.Rect{int32(state) * w, 0, button.Pos.W, button.Pos.H}, &button.Pos)
}
func RenderTextToTexture(r *sdl.Renderer, f *ttf.Font, text string, color sdl.Color) (*sdl.Texture, int, int) {
textw, texth, err := f.SizeText(text)
if err != nil {
log.Fatal(err)
}
txt_surface := f.RenderText_Blended(text, color)
txt_tex := r.CreateTextureFromSurface(txt_surface)
txt_surface.Free()
return txt_tex, textw, texth
}
func (label *Label) Update(rend *sdl.Renderer) {
textw, texth, err := label.Font.SizeText(label.Text)
if err != nil {
log.Fatal(err)
}
txt_surface := label.Font.RenderText_Blended(label.Text, label.Color)
if label.texture != nil {
label.texture.Destroy()
}
label.texture = rend.CreateTextureFromSurface(txt_surface)
txt_surface.Free()
label.texwidth = int32(textw)
label.texheight = int32(texth)
}
func studioUpdate(window *sdl.Window, rend *sdl.Renderer, screen *Screen) bool {
var event sdl.Event
running := true
for (&event).Poll() {
switch e := (&event).Get().(type) {
case sdl.QuitEvent:
running = false
case sdl.KeyboardEvent:
if e.Keysym.Keycode == sdl.K_ESCAPE {
running = false
}
case sdl.MouseMotionEvent:
screen.stack.OnMouseMotionEvent(&e)
case sdl.MouseButtonEvent:
screen.stack.OnMouseButtonEvent(&e)
}
}
neww, newh := window.GetSize()
screen.UpdateLayout(sdl.Rect{0, 0, int32(neww), int32(newh)})
//screen.UpdateAnimations(framerate.Delta())
rend.SetDrawBlendMode(sdl.BLENDMODE_NONE)
rend.SetDrawColor(screen.rsc.BackgroundColor)
rend.Clear()
rend.SetDrawBlendMode(sdl.BLENDMODE_BLEND)
screen.Draw(rend)
rend.Present()
screen.framerate.FramerateDelay()
return running
}
func (node *Node) Draw(rend *sdl.Renderer) {
if node.dragging {
node.curr.X += (node.goal.X - node.curr.X) * (15.0 / 30.0)
node.curr.Y += (node.goal.Y - node.curr.Y) * (15.0 / 30.0)
node.Pos.X = int32(node.curr.X)
node.Pos.Y = int32(node.curr.Y)
node.label.Pos = node.Pos
}
clr := node.color
if !node.dragging {
rend.SetDrawColor(clr)
rend.FillRect(&node.Pos)
}
rend.SetDrawColor(lighten(clr, 19))
rend.DrawRect(&node.Pos)
node.label.Draw(rend)
if node.menu.Visible {
node.menu.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))
}
}
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)
}
}
// Draw a popup menu
func (menu *PopupMenu) Draw(rend *sdl.Renderer) {
if !menu.Visible {
return
}
rend.SetDrawColor(hexcolor(0x303030))
rend.FillRect(&menu.Pos)
rend.SetDrawColor(hexcolor(0x363636))
rend.DrawRect(&menu.Pos)
if menu.hover != -1 && menu.hover < len(menu.entries) {
rend.SetDrawColor(hexcolor(0x406f40))
rend.FillRect(&menu.entries[menu.hover].label.Pos)
}
for _, e := range menu.entries {
e.Draw(rend)
}
}
func (label *Label) Draw(rend *sdl.Renderer) {
pos := sdl.Rect{label.Pos.X + (label.Pos.W-label.texwidth)/2, label.Pos.Y + (label.Pos.H-label.texheight)/2, label.texwidth, label.texheight}
rend.Copy(label.texture, nil, &pos)
}