ZacharyZhang-NY
0e21870b64
An audio player with transport, scrubber and volume; an equalizer and a visualizer; a playlist; a cassette, cartridge and record that turn while they play and hold where they stop; piano keys, a step sequencer and a tracker you can type into; a waveform, a 16:9 video frame, an image compare, a gallery, a filmstrip, a record button and an FM tuner. input exports SlideBase, the undrawn rail its sliders share; the gallery treats exported Bases as building blocks, not components. pixel's micro font gains '#' for notes like C#4. pixel.Pad and the slide rail read input only while their base is enabled, so Inert or a fresh Disabled stops a drag or a key already sent. AGENTS records why a drawn container keeps the DISABLED description: MyGo paints a disabled subtree at half opacity.
51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
package media
|
|
|
|
import (
|
|
"fmt"
|
|
"log/slog"
|
|
"time"
|
|
|
|
"github.com/egoist/mygo/ui"
|
|
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/input"
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
|
|
)
|
|
|
|
type ScrubberOptions struct {
|
|
// Width is the bar in dots; zero means 96.
|
|
Width int
|
|
Disabled bool
|
|
}
|
|
|
|
type ScrubberResult struct {
|
|
Element *ui.Element
|
|
Changed bool
|
|
}
|
|
|
|
// Scrubber seeks *at within total, the time at either end.
|
|
func Scrubber(c *ui.Context, text string, at *time.Duration, total time.Duration, o ScrubberOptions) ScrubberResult {
|
|
k := pixel.K(c)
|
|
if total <= 0 || *at < 0 || *at > total {
|
|
panic(fmt.Sprintf("media: Scrubber at %v of %v", *at, total))
|
|
}
|
|
// Seconds, so readers hear the place, not a fraction.
|
|
secs := at.Seconds()
|
|
var res ScrubberResult
|
|
res.Element = ui.Row(c).Gap(k.D(4)).AlignItems(ui.Center).Children(func() {
|
|
times := func(d time.Duration) {
|
|
s := mmss(d)
|
|
ui.Box(c).Size(k.D(pixel.MicroWidth(s)), k.D(5)).Role(ui.RoleText).Label(s).Draw(func(p *ui.Painter, r ui.Rect) {
|
|
k.Canvas(p, r).Micro(0, 0, s, pixel.Faint, 1)
|
|
})
|
|
}
|
|
times(*at)
|
|
if input.Slider(c, text, &secs, input.SliderOptions{Max: total.Seconds(), Width: o.Width, Disabled: o.Disabled}).Changed {
|
|
// Never past the end, whatever the float says.
|
|
*at, res.Changed = min(total, time.Duration(secs*float64(time.Second))), true
|
|
slog.Debug("8bit: scrubber", "label", text, "at", *at)
|
|
}
|
|
times(total)
|
|
})
|
|
return res
|
|
}
|