Revert to native Marquee for all lines; remove album-art overlap
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@@ -1,11 +1,12 @@
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# subwave-nowplaying
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Tronbyt/Tidbyt app showing the current track on a [SUB/WAVE](https://github.com/perminder-klair/subwave)
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internet radio station: album art, track title/artist (scrolling), a thin
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separator, the current show and host, and a full-width footer with
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time/temperature and a track progress bar pinned to the bottom edge. Color
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scheme (cyan title/artist, white show name, magenta host/progress bar) is
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loosely modeled on SUB/WAVE's own web now-playing display.
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internet radio station: album art, and four scrolling lines — track
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title/artist, a thin separator, the current show and host, and local
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time/temperature — plus a track progress bar pinned to the bottom of the
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32px-wide text column. Color scheme (cyan title/artist, white show name,
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magenta host/progress bar) is loosely modeled on SUB/WAVE's own web
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now-playing display.
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Not tied to any specific station — set your own station's base URL in the
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app's config when adding it to a device.
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@@ -28,22 +29,28 @@ app's config when adding it to a device.
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- If a track has no `subsonic_id`, or the cover fetch fails, falls back to a
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full-width layout with no art rather than a broken image.
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- Shows the current show name (`context.activeShow.name`) and host name
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(`dj.name`) below the artist, separated by a thin divider line.
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- Shows the local time and temperature (`context.clock`/`context.weather`)
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and the track progress bar as a full-width (64px) footer overlaid on the
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bottom of the layout — not confined to the 32px-wide text column, which
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gives roughly 2x the character budget for the time/temp line (at the cost
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of covering the bottom ~9px of the album art with a translucent bar).
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(`dj.name`) below the artist, separated by a thin divider line, and the
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local time/temperature (`context.clock`/`context.weather`) below that —
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all as independently scrolling Marquee lines, confined to the 32px-wide
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text column next to the album art (no overlay/overlap with the art).
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**Why show/host/time-temp are plain Text, not Marquee:** pixlet's Marquee
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runs its own internal scroll-cycle animation regardless of whether the text
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actually needs to scroll, and combining multiple Marquees with very
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different cycle lengths in one Root desyncs them — confirmed via an
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isolated repro where a short Marquee'd line intermittently collapsed to a
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single character on frames where the long title/artist marquees were
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mid-cycle. Only title/artist (which actually benefit from scrolling for
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long names) use Marquee; the shorter supplementary fields use plain
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Text/Row and just clip if too wide, which is an acceptable tradeoff.
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**Known quirk — occasional Marquee glitch:** pixlet's `render.Marquee` runs
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its own internal scroll-cycle animation, and stacking several Marquees of
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different text lengths in one Root can occasionally desync them — a line
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may briefly blank or show a garbled frame while another Marquee is
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mid-cycle. This is a real, currently-unfixed pixlet bug (there's an
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open `FIXME: Behaviour when children themselves are animated is a bit
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weird` in pixlet's own widget docs), not something introduced by this app.
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It's also not unique to this app: `tronbyt/apps/apps/goosefm/goose_fm.star`
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(an accepted official community app) stacks 3 Marquees for the same kind of
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now-playing info and exhibits the identical occasional glitch on close
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frame-by-frame inspection. In practice it's subtle enough to be easy to
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miss on a real, continuously-scrolling display. A custom hand-rolled scroll
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(via `animation.Transformation` + `Translate`, avoiding `Marquee` entirely)
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was prototyped and could fully eliminate this, but only by consolidating
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down to 2 scrolling lines total (title alone, everything else combined into
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one line) — full independent lines for every field was preferred instead,
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accepting the same minor quirk real Tidbyt/Tronbyt apps already ship with.
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**Progress bar caveat:** the now-playing API reports track `duration` but
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not elapsed/remaining time, so the app tracks playback position itself —
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+21
-51
@@ -20,7 +20,7 @@ COLOR_ARTIST = "#22d3ee" # cyan
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COLOR_SEPARATOR = "#444444" # thin divider between artist and show/host
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COLOR_SHOW = "#e0e0e0" # near-white
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COLOR_HOST = "#ec4899" # magenta/pink
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COLOR_META = "#888888" # muted gray, for the time/temp footer
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COLOR_META = "#888888" # muted gray, for the time/temp line
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COLOR_BAR_FILLED = "#c026d3" # magenta/purple
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COLOR_BAR_EMPTY = "#333333"
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@@ -46,27 +46,34 @@ def main(config):
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render.Marquee(width = 32, child = render.Text(now["title"], color = COLOR_TITLE)),
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render.Marquee(width = 32, child = render.Text(now["artist"], color = COLOR_ARTIST)),
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]
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# Note: show/host is plain Text/Row, not Marquee. Pixlet's Marquee runs
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# its own internal scroll-cycle animation regardless of whether the text
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# actually needs to scroll, and combining multiple Marquees with very
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# different cycle lengths in one Root desyncs them -- confirmed via an
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# isolated repro where a short Marquee'd line intermittently collapsed to
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# a single character on frames where the long title/artist marquees were
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# mid-cycle. Plain Text just clips if too wide, an acceptable tradeoff
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# for this short field.
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if now["show"]:
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top_lines.append(render.Box(width = 32, height = 1, color = COLOR_SEPARATOR))
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show_host_row = [render.Text(now["show"], font = "tom-thumb", color = COLOR_SHOW)]
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if now["host"]:
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show_host_row.append(render.Text(" " + now["host"], font = "tom-thumb", color = COLOR_HOST))
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top_lines.append(render.Row(children = show_host_row))
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top_lines.append(render.Marquee(width = 32, child = render.Row(children = show_host_row)))
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if now["time_temp"]:
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top_lines.append(render.Marquee(width = 32, child = render.Text(now["time_temp"], font = "tom-thumb", color = COLOR_META)))
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text_column = render.Column(children = top_lines)
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children = [render.Column(children = top_lines)]
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if progress != None:
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children.append(_progress_bar(progress["fraction"], width = 32))
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text_column = render.Box(
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width = 32,
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height = 32,
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child = render.Column(
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main_align = "space_between",
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cross_align = "start",
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expanded = True,
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children = children,
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),
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)
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if art:
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base = render.Row(children = [render.Image(src = art, width = 32, height = 32), text_column])
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content = render.Row(children = [render.Image(src = art, width = 32, height = 32), text_column])
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else:
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base = render.Column(
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content = render.Column(
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main_align = "center",
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cross_align = "center",
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expanded = True,
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@@ -76,44 +83,7 @@ def main(config):
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],
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)
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# Time/temp and the progress bar are rendered as a full-width (64px)
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# footer overlaid on top of the base layout via Stack, rather than
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# squeezed into the 32px-wide text column -- gives roughly 2x the
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# character budget for the time/temp line, at the cost of covering the
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# bottom ~9px of the album art with a translucent bar.
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footer_children = []
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if now["time_temp"]:
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footer_children.append(
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render.Box(
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width = 64,
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height = 7,
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color = "#000000cc",
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child = render.Row(
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expanded = True,
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main_align = "center",
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cross_align = "center",
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children = [render.Text(now["time_temp"], font = "tom-thumb", color = COLOR_META)],
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),
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),
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)
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if progress != None:
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footer_children.append(_progress_bar(progress["fraction"], width = 64))
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if not footer_children:
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return render.Root(child = base)
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footer = render.Box(
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width = 64,
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height = 32,
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child = render.Column(
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main_align = "end",
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cross_align = "start",
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expanded = True,
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children = [render.Column(children = footer_children)],
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),
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)
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return render.Root(child = render.Stack(children = [base, footer]))
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return render.Root(child = content)
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def _message_screen(lines):
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return render.Column(
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