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QGnomeTheme: Change the QFont members to pointer members.

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When initializing the font members in the QGnomeTheme constructor,
the QFont constructor called QGuiApplication::font() which in
turn calls initFontUnlocked(), initializing
QGuiApplicationPrivate::app_font to QPlatformFontDatabase::defaultFont()
("Deja Vu 12") since QGuiApplicationPrivate::platformTheme() is still
0 at that point.

Change the fonts to pointer members and initialize them
delayed in QGnomeThemePrivate::configureFonts() instead.

Task-number: QTBUG-49095
Change-Id: I3282ea8484e04827be2a424f5ea3e34d607c4bc5
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
This commit is contained in:
Friedemann Kleint 2016-01-20 09:36:35 +01:00
parent 1f9a06c294
commit 26379d0320
1 changed files with 12 additions and 12 deletions
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24
src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
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@ -577,23 +577,23 @@ const char *QGnomeTheme::name = "gnome";
class QGnomeThemePrivate : public QPlatformThemePrivate
{
public:
QGnomeThemePrivate() : fontsConfigured(false) { }
QGnomeThemePrivate() : systemFont(Q_NULLPTR), fixedFont(Q_NULLPTR) {}
~QGnomeThemePrivate() { delete systemFont; delete fixedFont; }
void configureFonts(const QString &gtkFontName) const
{
Q_ASSERT(!fontsConfigured);
Q_ASSERT(!systemFont);
const int split = gtkFontName.lastIndexOf(QChar::Space);
float size = gtkFontName.mid(split+1).toFloat();
QString fontName = gtkFontName.left(split);
systemFont = QFont(fontName, size);
fixedFont = QFont(QLatin1String("monospace"), systemFont.pointSize());
fixedFont.setStyleHint(QFont::TypeWriter);
fontsConfigured = true;
systemFont = new QFont(fontName, size);
fixedFont = new QFont(QLatin1String("monospace"), systemFont->pointSize());
fixedFont->setStyleHint(QFont::TypeWriter);
}
mutable QFont systemFont;
mutable QFont fixedFont;
mutable bool fontsConfigured;
mutable QFont *systemFont;
mutable QFont *fixedFont;
};
QGnomeTheme::QGnomeTheme()
@ -632,13 +632,13 @@ QVariant QGnomeTheme::themeHint(QPlatformTheme::ThemeHint hint) const
const QFont *QGnomeTheme::font(Font type) const
{
Q_D(const QGnomeTheme);
if (!d->fontsConfigured)
if (!d->systemFont)
d->configureFonts(gtkFontName());
switch (type) {
case QPlatformTheme::SystemFont:
return &d->systemFont;
return d->systemFont;
case QPlatformTheme::FixedFont:
return &d->fixedFont;
return d->fixedFont;
default:
return 0;
}