[Theme] Add scheme-variant asset resolution (#7275)

* Add scheme-variant theme asset resolution (#7209-1)

ThemeManager::assetPath() and schemeVariantPath() resolve a theme asset to its scheme-variant file (prefix-light/dark.png) with fallback to the plain asset, and themePixmap()/loadBrush()/loadExtraBrush() use them. CSS files load style-dark.css or style-light.css when present. Home widget re-resolves its background on theme change.

Link pixel_map_generator.cpp into the oracle target, which needs Qt6::Xml for QDomDocument.

* Fix clang-format wrap of theme format probe lists

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Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
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BruebachL 2026-09-11 17:59:57 +02:00 committed by GitHub
parent 202a5ac958
commit e9bf1e6e46
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7 changed files with 147 additions and 12 deletions

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@ -87,6 +87,20 @@ public:
// Load/save per-scheme palette colors
static PaletteConfig loadPaletteConfig(const QString &themeDirPath, const QString &colorScheme);
static bool savePaletteConfig(const QString &themeDirPath, const QString &colorScheme, const PaletteConfig &cfg);
// Resolve prefix to a scheme-qualified "theme:" path. Existence is probed
// internally across the formats themes may ship (.png/.jpg/.svg), so
// callers load the returned path directly. Prefers "<prefix>-<dark|light>"
// when a file exists at that stem, otherwise the plain "<prefix>" as the
// super fallback. The resolved scheme covers explicit light/dark as well
// as OS-resolved "system". Returns the path with its file extension when a
// match is found; unqualified assets keep working unchanged.
QString assetPath(QStringView prefix) const;
// Like assetPath, but resolves only the scheme-qualified variant
// ("<prefix>-<dark|light>.<ext>") and returns an empty string when no
// variant exists — it never falls back to the plain "<prefix>" asset.
// Callers that must distinguish "no authored variant" (e.g. to keep a
// legacy runtime fallback alive) should use this instead of assetPath.
QString schemeVariantPath(QStringView prefix) const;
// Load the theme's shipped default palette, falling back to the system
// theme directory when it is absent from the resolved (user) directory.
static PaletteConfig