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Extends the wallpaper title/author overlay from a fixed bottom-left position to a user-selected quadrant (top-left, top-right, bottom-left, bottom-right), exposed as a Settings row below the existing visibility toggle. An invalid or unset value safely falls back to bottom-left, matching the previous fixed behavior. The contrast-sampling rect (corner_luminance_frac call in update_attribution()) now tracks the active quadrant too -- it previously always sampled the bottom-left corner of the wallpaper regardless of where the label actually sat, which would have picked light/dark text against the wrong part of the image for any non-bottom-left placement. Needs the wallpaper-attribution-position schema key (singularityos-lab/singularity-desktop#262). This ports and extends a working left/right-only version the operator had running locally (never previously upstreamed) to the full 4-quadrant case the current design calls for. contrast-sample rect to track the active quadrant, added the Settings picker row. Assisted-by: Claude Code:claude-sonnet-5 AI-Scope: Ported and extended prior left/right attribution-position vala logic to full 4-quadrant support, plus fixed the contrast-sample rect to track the active quadrant.
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@mirkobrombin gentle bump on this one when you have a moment - would love your thoughts on the attribution quadrant picker. |
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Top positions end up under the panel: the background covers the whole screen (exclusive zone -1) and the label never gets |
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Extends the wallpaper title/author overlay from a fixed bottom-left position to a user-selected quadrant (top-left, top-right, bottom-left, bottom-right), via a Settings row below the existing visibility toggle. Depends on singularityos-lab/singularity-desktop#262 for the
wallpaper-attribution-positionschema key.An invalid/unset value falls back to bottom-left, matching current behavior -- this PR changes no default.
Real bug fixed along the way: the contrast-sampling rect (
corner_luminance_fraccall) always sampled the bottom-left corner of the wallpaper regardless of where the label actually renders. Extending to 4 quadrants without fixing this would have picked light/dark caption text against the wrong part of the image for top or right placements. The sample rect now mirrors to match the active quadrant.This ports and extends a working left/right-only version to the full 4-quadrant case.
Verified: full
ninja -C builddirbuild succeeds (0 errors, only pre-existing unrelated warnings) against a fresh subproject checkout of libsingularity + singularity-loginui.Assisted-by: Claude Code:claude-sonnet-5
AI scope: extended halign/valign switch to 4 quadrants, fixed the contrast-sample rect to track the active quadrant, added the Settings picker row.
AI assistance: disclosed