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.
65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
package media
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import (
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"fmt"
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"log/slog"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/data"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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type PlaylistOptions struct {
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// Width and Height are dots; zeros mean 200 by 120.
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Width, Height int
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Disabled bool
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}
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type PlaylistResult struct {
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Element *ui.Element
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// Submitted is Enter or a double click on a row.
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Changed, Submitted bool
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}
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// Playlist lists tracks; ♪ marks the one playing.
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func Playlist(c *ui.Context, text string, tracks []Track, playing int, selected *int, o PlaylistOptions) PlaylistResult {
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k := pixel.K(c)
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if playing < -1 || playing >= len(tracks) || *selected < -1 || *selected >= len(tracks) {
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panic(fmt.Sprintf("media: Playlist plays %d and selects %d of %d", playing, *selected, len(tracks)))
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}
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for _, t := range tracks {
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if t.Length < 0 {
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panic(fmt.Sprintf("media: Playlist track %q lasts %v", t.Title, t.Length))
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}
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}
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name := func(i int) string {
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s := tracks[i].Title + ", " + tracks[i].Artist
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if i == playing {
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s += ", " + k.Msg("playing")
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}
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return s
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}
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var r data.ListResult
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e := ui.Box(c).Width(k.D(pixel.Or("Playlist Width", o.Width, 200))).Children(func() {
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r = data.List(c, text, len(tracks), selected, data.ListOptions{Height: o.Height, Disabled: o.Disabled}, name, func(i int) {
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t := tracks[i]
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ui.Box(c).FillWidth().Height(k.D(pixel.LineHeight)).Draw(func(p *ui.Painter, rc ui.Rect) {
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g := k.Canvas(p, rc)
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ink, length, x := pixel.Ink, mmss(t.Length), pixel.Measure("♪")+2
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if i == playing {
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g.Text(0, 0, "♪", pixel.Accent, 1)
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ink = pixel.Accent
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}
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lw := pixel.MicroWidth(length)
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g.Text(x, 0, pixel.Wrap(t.Title+" · "+t.Artist, g.W-x-6-lw, 1)[0], ink, 1)
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g.Micro(g.W-lw-2, 5, length, pixel.Faint, 1)
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})
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})
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})
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if r.Changed || r.Submitted {
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slog.Debug("8bit: playlist", "label", text, "selected", *selected, "submitted", r.Submitted)
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}
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return PlaylistResult{Element: e, Changed: r.Changed, Submitted: r.Submitted}
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}
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