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[Theme] Pass application palette when generating disabled icon pixmap

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Co-authored-by: sentry[bot] <39604003+sentry[bot]@users.noreply.github.com>
This commit is contained in:
Lukas Brübach 2026-11-09 20:26:38 +00:00
parent 16455c9fd5
commit 0bea891091
2 changed files with 34 additions and 1 deletions
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7
cockatrice/src/interface/theme_icon.cpp
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@ -24,6 +24,7 @@
#include <QString>
#include <QStringLiteral>
#include <QStyle>
#include <QStyleOption>
#include <QSvgRenderer>
#include <QtGlobal>
#include <utility>
@ -318,7 +319,11 @@ private:
}
}
if (mode == QIcon::Disabled && !pixmap.isNull()) {
pixmap = QApplication::style()->generatedIconPixmap(QIcon::Disabled, pixmap, nullptr);
// QCommonStyle reads the disabled colors from the option's palette
// without a null check, so a null option crashes in QPalette::brush.
QStyleOption option;
option.palette = qApp->palette();
pixmap = QApplication::style()->generatedIconPixmap(QIcon::Disabled, pixmap, &option);
}
return pixmap;
}

28
tests/theme_migration/theme_icon_render_test.cpp
View file

@ -619,6 +619,34 @@ TEST_F(ThemeIconRenderTest, BadgeOnAuthoredArtUsesTheAssetPath)
EXPECT_EQ(countOpaquePixels(pixmap, tone.darker(300)), 0);
}
/**
* @brief Disabled authored art is generated by the style without crashing.
*
* Art that carries its own colors is dimmed through
* QStyle::generatedIconPixmap, which dereferences the style option's palette;
* passing no option crashed in QPalette::brush.
*/
TEST_F(ThemeIconRenderTest, DisabledAuthoredArtIsGeneratedByTheStyle)
{
QTemporaryDir themeDir;
ASSERT_TRUE(themeDir.isValid());
QFile file(QDir(themeDir.path()).absoluteFilePath(QStringLiteral("plain.svg")));
ASSERT_TRUE(file.open(QIODevice::WriteOnly));
file.write(svgWith("#336699"));
file.close();
QDir::addSearchPath(QStringLiteral("theme"), themeDir.path());
const QIcon icon = loadThemedIcon(QStringLiteral("plain"));
const QPixmap normal = icon.pixmap(QSize(32, 32));
const QPixmap disabled = icon.pixmap(QSize(32, 32), QIcon::Disabled);
ASSERT_FALSE(normal.isNull());
ASSERT_FALSE(disabled.isNull());
EXPECT_GT(countOpaquePixels(normal, QColor(QStringLiteral("#336699"))), 0);
// The style dims the art, so the authored color no longer appears verbatim.
EXPECT_EQ(countOpaquePixels(disabled, QColor(QStringLiteral("#336699"))), 0);
}
/** @brief Disabled keeps the shape language but drops back to the line glyph. */
TEST_F(ThemeIconRenderTest, DisabledBadgeFallsBackToLineGlyph)
{