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DolphinQt: Custom style for QGroupBox in Fusion.

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Fusion is the fallback style that Qt provides in systems that do not
offer a OS-specific style. Basically, anything that is not Windows,
macOS, or KDE (NOTE: Since #13919, users on these systems can opt in to
Fusion too).

Its default style for `QGroupBox` is not very conventional, and has been
customized to align with more popular designs.

| Before | After |
| --- | --- |
| ![Default QGroupBox style in Fusion](https://github.com/user-attachments/assets/b9f63e21-4282-4a61-a93c-93806ee589a4) | ![Custom QGroupBox style in Fusion](https://github.com/user-attachments/assets/1c8f7f1e-11a2-4712-b1b2-c5e5045b120e) |
This commit is contained in:
cristian64
2026-04-03 11:18:08 +01:00
parent d3b89b4c39
commit 3e788399b6
1 changed files with 27 additions and 9 deletions
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Source/Core/DolphinQt/Settings.cpp
+20 -2
View File
@@ -159,7 +159,6 @@ void Settings::ApplyStyle()
{ {
const StyleType style_type = GetStyleType(); const StyleType style_type = GetStyleType();
{
const bool use_fusion{style_type == StyleType::FusionLight || const bool use_fusion{style_type == StyleType::FusionLight ||
style_type == StyleType::FusionDarkGray || style_type == StyleType::FusionDarkGray ||
style_type == StyleType::FusionDark}; style_type == StyleType::FusionDark};
@@ -167,7 +166,6 @@ void Settings::ApplyStyle()
const QString style_name{use_fusion ? QStringLiteral("fusion") : s_initial_style_name}; const QString style_name{use_fusion ? QStringLiteral("fusion") : s_initial_style_name};
if (QApplication::style()->name() != style_name) if (QApplication::style()->name() != style_name)
QApplication::setStyle(style_name); QApplication::setStyle(style_name);
}
const QString stylesheet_name = GetUserStyleName(); const QString stylesheet_name = GetUserStyleName();
QString stylesheet_contents; QString stylesheet_contents;
@@ -386,6 +384,26 @@ void Settings::ApplyStyle()
stylesheet_contents.append(QStringLiteral("%1").arg(tooltip_stylesheet)); stylesheet_contents.append(QStringLiteral("%1").arg(tooltip_stylesheet));
} }
// For Fusion, define group box style if not already defined.
if (style_name.compare(QStringLiteral("fusion"), Qt::CaseInsensitive) == 0 &&
!stylesheet_contents.contains(QStringLiteral("QGroupBox")))
{
stylesheet_contents.append(QStringLiteral("QGroupBox {"
" margin-top: 0.6em;"
" padding-top: 0.5em;"
" padding-bottom: 0;"
" padding-left: 1px;"
" padding-right: 1px;"
"} "
"QGroupBox::title {"
" subcontrol-origin: margin;"
" subcontrol-position: top left;"
" left: 0.7em;"
" padding-top: 1px;"
" min-width: 0;"
"}"));
}
qApp->setStyleSheet(stylesheet_contents); qApp->setStyleSheet(stylesheet_contents);
} }