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