diff options
Diffstat (limited to 'src/gui/image/qicon.cpp')
| -rw-r--r-- | src/gui/image/qicon.cpp | 226 |
1 files changed, 160 insertions, 66 deletions
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp index fa407c7..7a43514 100644 --- a/src/gui/image/qicon.cpp +++ b/src/gui/image/qicon.cpp @@ -40,9 +40,11 @@ ****************************************************************************/ #include "qicon.h" +#include "qicon_p.h" #include "qiconengine.h" #include "qiconengineplugin.h" #include "private/qfactoryloader_p.h" +#include "private/qiconloader_p.h" #include "qapplication.h" #include "qstyleoption.h" #include "qpainter.h" @@ -50,6 +52,7 @@ #include "qstyle.h" #include "qpixmapcache.h" #include "qvariant.h" +#include "qcache.h" #include "qdebug.h" #ifdef Q_WS_MAC @@ -57,6 +60,11 @@ #include <private/qt_cocoa_helpers_mac_p.h> #endif +#ifdef Q_WS_X11 +#include "private/qt_x11_p.h" +#include "private/qkde_p.h" +#endif + QT_BEGIN_NAMESPACE /*! @@ -94,73 +102,14 @@ QT_BEGIN_NAMESPACE static QBasicAtomicInt serialNumCounter = Q_BASIC_ATOMIC_INITIALIZER(1); -class QIconPrivate -{ -public: - QIconPrivate(): engine(0), ref(1), serialNum(serialNumCounter.fetchAndAddRelaxed(1)), detach_no(0), engine_version(2), v1RefCount(0) {} - - ~QIconPrivate() { - if (engine_version == 1) { - if (!v1RefCount->deref()) { - delete engine; - delete v1RefCount; - } - } else if (engine_version == 2) { - delete engine; - } - } - - QIconEngine *engine; - - QAtomicInt ref; - int serialNum; - int detach_no; - int engine_version; - - QAtomicInt *v1RefCount; -}; - - -struct QPixmapIconEngineEntry +QIconPrivate::QIconPrivate() + : engine(0), ref(1), + serialNum(serialNumCounter.fetchAndAddRelaxed(1)), + detach_no(0), + engine_version(2), + v1RefCount(0) { - QPixmapIconEngineEntry():mode(QIcon::Normal), state(QIcon::Off){} - QPixmapIconEngineEntry(const QPixmap &pm, QIcon::Mode m = QIcon::Normal, QIcon::State s = QIcon::Off) - :pixmap(pm), size(pm.size()), mode(m), state(s){} - QPixmapIconEngineEntry(const QString &file, const QSize &sz = QSize(), QIcon::Mode m = QIcon::Normal, QIcon::State s = QIcon::Off) - :fileName(file), size(sz), mode(m), state(s){} - QPixmap pixmap; - QString fileName; - QSize size; - QIcon::Mode mode; - QIcon::State state; - bool isNull() const {return (fileName.isEmpty() && pixmap.isNull()); } -}; - -class QPixmapIconEngine : public QIconEngineV2 { -public: - QPixmapIconEngine(); - QPixmapIconEngine(const QPixmapIconEngine &); - ~QPixmapIconEngine(); - void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state); - QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state); - QPixmapIconEngineEntry *bestMatch(const QSize &size, QIcon::Mode mode, QIcon::State state, bool sizeOnly); - QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state); - void addPixmap(const QPixmap &pixmap, QIcon::Mode mode, QIcon::State state); - void addFile(const QString &fileName, const QSize &size, QIcon::Mode mode, QIcon::State state); - - // v2 functions - QString key() const; - QIconEngineV2 *clone() const; - bool read(QDataStream &in); - bool write(QDataStream &out) const; - void virtual_hook(int id, void *data); - -private: - QPixmapIconEngineEntry *tryMatch(const QSize &size, QIcon::Mode mode, QIcon::State state); - QVector<QPixmapIconEngineEntry> pixmaps; - - friend QDataStream &operator<<(QDataStream &s, const QIcon &icon); -}; +} QPixmapIconEngine::QPixmapIconEngine() { @@ -918,6 +867,146 @@ QList<QSize> QIcon::availableSizes(Mode mode, State state) const return engine->availableSizes(mode, state); } +/*! + \since 4.6 + + Sets the search paths for icon themes. + \sa themeSearchPaths(), fromTheme() +*/ +void QIcon::setThemeSearchPaths(const QStringList &paths) +{ + QIconLoader::instance()->setThemeSearchPath(paths); +} + +/*! + \since 4.6 + + Returns the search paths for icon themes. + + The default value will depend on the platform: + + On X11, the search path will use the XDG_DATA_DIRS environment + variable if available. + + On Windows the search path defaults to [Application Directory]/icons + + On Mac the default search path will search in the + [Contents/Resources/icons] part of the application bundle. + + \sa setThemeSearchPaths(), fromName() +*/ +QStringList QIcon::themeSearchPaths() +{ + return QIconLoader::instance()->themeSearchPaths(); +} + +/*! + \since 4.6 + + Sets the current icon theme. + + The name should correspond to a directory name in the + current \ themeSearchPath() containing an index.theme + file describing it's contents.. + +*/ +void QIcon::setThemeName(const QString &path) +{ + QIconLoader::instance()->setThemeName(path); +} + +/*! + \since 4.6 + + Returns the name of the current icon theme. + + On X11, the current icon theme depends on your desktop + settings. On other platforms it is not set by default. + + \sa themeSearchPaths(), themeIcon(), fromTheme(), hasThemeIcon() +*/ +QString QIcon::themeName() +{ + return QIconLoader::instance()->themeName(); +} + +/*! + \since 4.6 + + Returns the QIcon corresponding to \a name in the current + icon theme. If no such icon is found in the current theme + \a fallback is return instead. + + To use an icon theme on Windows or Mac, you will need to + bundle a compliant theme with your application and make sure + it is located in your themeSarchPaths. + + The lastest version of the freedesktop icon specification and naming + spesification can be obtained here: + http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html + http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html + + To fetch an icon from the current icon theme: + + \snippet doc/src/snippets/code/src_gui_image_qicon.cpp 3 + + Or if you want to provide a guaranteed fallback for platforms that + do not support theme icons, you can use the second argument: + + \snippet doc/src/snippets/code/src_gui_image_qicon.cpp 4 + + \note By default, only X11 will support themed icons. In order to + use themed icons on Mac and Windows, you will have to bundle a + compliant theme in one of your themeSearchPaths() and set the + appropriate themeName(). + + \sa themeName(), themeSearchPaths() +*/ +QIcon QIcon::fromTheme(const QString &name, const QIcon &fallback) +{ + + static QCache <QString, QIcon> iconCache; + + QIcon icon; + +#ifdef Q_WS_X11 + if (X11->desktopEnvironment == DE_KDE) { + icon = QKde::kdeIcon(name); + if (!icon.isNull()) + return icon; + } +#endif + + if (iconCache.contains(name)) { + icon = *iconCache.object(name); + } else { + QIcon *cachedIcon = new QIcon(new QIconLoaderEngine(name)); + iconCache.insert(name, cachedIcon); + icon = *cachedIcon; + } + + if (icon.availableSizes().isEmpty()) + return fallback; + + return icon; +} + +/*! + \since 4.6 + + Returns true if there is an icon available for a \a name in the current + icon theme, otherwise returns false. + + \sa themeSearchPaths(), fromTheme() +*/ +bool QIcon::hasThemeIcon(const QString &name) +{ + QIcon icon = fromTheme(name); + + return !icon.isNull(); +} + + /***************************************************************************** QIcon stream functions *****************************************************************************/ @@ -989,6 +1078,11 @@ QDataStream &operator>>(QDataStream &s, QIcon &icon) QIconEngineV2 *engine = new QPixmapIconEngine; icon.d->engine = engine; engine->read(s); + } else if (key == QLatin1String("QIconLoaderEngine")) { + icon.d = new QIconPrivate; + QIconEngineV2 *engine = new QIconLoaderEngine(); + icon.d->engine = engine; + engine->read(s); #if !defined (QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS) } else if (QIconEngineFactoryInterfaceV2 *factory = qobject_cast<QIconEngineFactoryInterfaceV2*>(loaderV2()->instance(key))) { if (QIconEngineV2 *engine= factory->create()) { |