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[feat](trx-frontend-http): add frequency layers display for virtual channels

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Render virtual channels as absolutely-positioned layer strips inside a
shared relative container (#vchan-freq-layers). Layers are sorted by
frequency ascending so higher-frequency channels receive a higher z-index
and sit on top by default. Hovering any layer temporarily assigns it the
maximum z-index to bring it to the front; leaving restores the original
stacking order. Each layer is offset by 11 px vertically so all channels
remain visible as a staggered card stack.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
This commit is contained in:
Stan Grams
2026-03-12 19:58:55 +01:00
committed by Stan Grams
parent 93ff35a824
commit 1fe7dc88c6
3 changed files with 84 additions and 0 deletions
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src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css
+38
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@@ -392,6 +392,44 @@ input.status-input, select.status-input { width: 100%; padding: 0.45rem 0.5rem;
border-color: var(--vchan-color);
box-shadow: inset 3px 0 0 var(--vchan-color);
}
/* Frequency layers: absolutely-positioned channel strips stacked by frequency */
.vchan-freq-layers {
position: relative;
margin-top: 0.5rem;
/* height is set dynamically by vchanRenderLayers() */
}
.vchan-freq-layer {
position: absolute;
left: 0;
right: 0;
height: 2rem;
display: flex;
align-items: center;
padding: 0 0.6rem;
border-radius: 6px;
background: var(--input-bg);
border: 1px solid var(--border-light);
font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
font-size: 0.82rem;
color: var(--text-muted);
cursor: pointer;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
transition: border-color 0.12s, box-shadow 0.12s;
}
.vchan-freq-layer:hover {
border-color: var(--vchan-color);
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
color: var(--text);
}
.vchan-freq-layer.active {
background: var(--btn-bg);
color: var(--text);
font-weight: 600;
border-color: var(--vchan-color);
box-shadow: inset 3px 0 0 var(--vchan-color);
}
/* Applied to #freq and #spectrum-bw-input when on a virtual channel */
.vchan-ch-active {
border-color: var(--vchan-color) !important;