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import term.ui as tui
import rand
struct Rect {
mut:
c tui.Color
x int
y int
x2 int
y2 int
}
struct App {
mut:
tui &tui.Context = 0
rects []Rect
cur_rect Rect
is_drag bool
redraw bool
}
fn random_color() tui.Color {
return tui.Color{
r: byte(rand.intn(256))
g: byte(rand.intn(256))
b: byte(rand.intn(256))
}
}
fn event(e &tui.Event, x voidptr) {
mut app := &App(x)
match e.typ {
.mouse_down {
app.is_drag = true
app.cur_rect = Rect{
c: random_color()
x: e.x
y: e.y
x2: e.x
y2: e.y
}
}
.mouse_drag {
app.cur_rect.x2 = e.x
app.cur_rect.y2 = e.y
}
.mouse_up {
app.rects << app.cur_rect
app.is_drag = false
}
.key_down {
if e.code == .c {
app.rects.clear()
} else if e.code == .escape {
exit(0)
}
}
else {}
}
app.redraw = true
}
fn frame(x voidptr) {
mut app := &App(x)
if !app.redraw {
return
}
app.tui.clear()
for rect in app.rects {
app.tui.set_bg_color(rect.c)
app.tui.draw_rect(rect.x, rect.y, rect.x2, rect.y2)
}
if app.is_drag {
r := app.cur_rect
app.tui.set_bg_color(r.c)
app.tui.draw_empty_rect(r.x, r.y, r.x2, r.y2)
}
app.tui.reset_bg_color()
app.tui.flush()
app.redraw = false
}
fn main() {
mut app := &App{}
app.tui = tui.init(
user_data: app
event_fn: event
frame_fn: frame
hide_cursor: true
frame_rate: 60
)
app.tui.run() ?
}
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