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Qt 6.x
The Qt SDK
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Qt 6.x
The Qt SDK
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#include <qlinuxfbscreen.h>
Inheritance diagram for QLinuxFbScreen: Collaboration diagram for QLinuxFbScreen:Public Member Functions | |
| QLinuxFbScreen (const QStringList &args) | |
| ~QLinuxFbScreen () | |
| bool | initialize () override |
| QPixmap | grabWindow (WId wid, int x, int y, int width, int height) const override |
| This function is called when Qt needs to be able to grab the content of a window. | |
| QRegion | doRedraw () override |
| Public Member Functions inherited from QFbScreen | |
| QFbScreen () | |
| ~QFbScreen () | |
| virtual bool | initialize () |
| QRect | geometry () const override |
| Reimplement in subclass to return the pixel geometry of the screen. | |
| int | depth () const override |
| Reimplement in subclass to return current depth of the screen. | |
| QImage::Format | format () const override |
| Reimplement in subclass to return the image format which corresponds to the screen format. | |
| QSizeF | physicalSize () const override |
| Reimplement this function in subclass to return the physical size of the screen, in millimeters. | |
| QPlatformCursor * | cursor () const override |
| Reimplement this function in subclass to return the cursor of the screen. | |
| QWindow * | topWindow () const |
| QWindow * | topLevelAt (const QPoint &p) const override |
| Return the given top level window for a given position. | |
| virtual void | addWindow (QFbWindow *window) |
| virtual void | removeWindow (QFbWindow *window) |
| virtual void | raise (QFbWindow *window) |
| virtual void | lower (QFbWindow *window) |
| virtual void | topWindowChanged (QWindow *) |
| virtual int | windowCount () const |
| virtual Flags | flags () const |
| void | addPendingBackingStore (QFbBackingStore *bs) |
| void | scheduleUpdate () |
| Public Member Functions inherited from QObject | |
| Q_INVOKABLE | QObject (QObject *parent=nullptr) |
| Constructs an object with parent object parent. | |
| virtual | ~QObject () |
| Destroys the object, deleting all its child objects. | |
| virtual bool | event (QEvent *event) |
| This virtual function receives events to an object and should return true if the event e was recognized and processed. | |
| virtual bool | eventFilter (QObject *watched, QEvent *event) |
| Filters events if this object has been installed as an event filter for the watched object. | |
| QString | objectName () const |
| Q_WEAK_OVERLOAD void | setObjectName (const QString &name) |
| Sets the object's name to name. | |
| void | setObjectName (QAnyStringView name) |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. | |
| QBindable< QString > | bindableObjectName () |
| bool | isWidgetType () const |
Returns true if the object is a widget; otherwise returns false. | |
| bool | isWindowType () const |
Returns true if the object is a window; otherwise returns false. | |
| bool | isQuickItemType () const |
Returns true if the object is a QQuickItem; otherwise returns false. | |
| bool | signalsBlocked () const noexcept |
Returns true if signals are blocked; otherwise returns false. | |
| bool | blockSignals (bool b) noexcept |
| If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). | |
| QThread * | thread () const |
| Returns the thread in which the object lives. | |
| void | moveToThread (QThread *thread) |
| Changes the thread affinity for this object and its children. | |
| int | startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer) |
| This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds. | |
| int | startTimer (std::chrono::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
| void | killTimer (int id) |
| Kills the timer with timer identifier, id. | |
| template<typename T > | |
| T | findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object. | |
| template<typename T > | |
| QList< T > | findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. | |
| template<typename T > | |
| QList< T > | findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. | |
| const QObjectList & | children () const |
| Returns a list of child objects. | |
| void | setParent (QObject *parent) |
| Makes the object a child of parent. | |
| void | installEventFilter (QObject *filterObj) |
| Installs an event filter filterObj on this object. | |
| void | removeEventFilter (QObject *obj) |
| Removes an event filter object obj from this object. | |
| QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
| bool | disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const |
| bool | disconnect (const QObject *receiver, const char *member=nullptr) const |
| void | dumpObjectTree () const |
| Dumps a tree of children to the debug output. | |
| void | dumpObjectInfo () const |
| Dumps information about signal connections, etc. | |
| bool | setProperty (const char *name, const QVariant &value) |
| Sets the value of the object's name property to value. | |
| bool | setProperty (const char *name, QVariant &&value) |
| QVariant | property (const char *name) const |
| Returns the value of the object's name property. | |
| QList< QByteArray > | dynamicPropertyNames () const |
| QBindingStorage * | bindingStorage () |
| const QBindingStorage * | bindingStorage () const |
| QObject * | parent () const |
| Returns a pointer to the parent object. | |
| bool | inherits (const char *classname) const |
Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. | |
| Public Member Functions inherited from QPlatformScreen | |
| QPlatformScreen () | |
| virtual | ~QPlatformScreen () |
| virtual bool | isPlaceholder () const |
| virtual QPixmap | grabWindow (WId window, int x, int y, int width, int height) const |
| This function is called when Qt needs to be able to grab the content of a window. | |
| virtual QRect | geometry () const =0 |
| Reimplement in subclass to return the pixel geometry of the screen. | |
| virtual QRect | availableGeometry () const |
| Reimplement in subclass to return the pixel geometry of the available space This normally is the desktop screen minus the task manager, global menubar etc. | |
| virtual int | depth () const =0 |
| Reimplement in subclass to return current depth of the screen. | |
| virtual QImage::Format | format () const =0 |
| Reimplement in subclass to return the image format which corresponds to the screen format. | |
| virtual QColorSpace | colorSpace () const |
| virtual QSizeF | physicalSize () const |
| Reimplement this function in subclass to return the physical size of the screen, in millimeters. | |
| virtual QDpi | logicalDpi () const |
| Reimplement this function in subclass to return the logical horizontal and vertical dots per inch metrics of the screen. | |
| virtual QDpi | logicalBaseDpi () const |
| Reimplement to return the base logical DPI for the platform. | |
| virtual qreal | devicePixelRatio () const |
| Reimplement this function in subclass to return the device pixel ratio for the screen. | |
| virtual qreal | refreshRate () const |
| Reimplement this function in subclass to return the vertical refresh rate of the screen, in Hz. | |
| virtual Qt::ScreenOrientation | nativeOrientation () const |
| Reimplement this function in subclass to return the native orientation of the screen, e.g. | |
| virtual Qt::ScreenOrientation | orientation () const |
| Reimplement this function in subclass to return the current orientation of the screen, for example based on accelerometer data to determine the device orientation. | |
| virtual QWindow * | topLevelAt (const QPoint &point) const |
| Return the given top level window for a given position. | |
| QWindowList | windows () const |
| Return all windows residing on this screen. | |
| virtual QList< QPlatformScreen * > | virtualSiblings () const |
| Returns a list of all the platform screens that are part of the same virtual desktop. | |
| const QPlatformScreen * | screenForPosition (const QPoint &point) const |
| Find the sibling screen corresponding to globalPos. | |
| QScreen * | screen () const |
| virtual QString | name () const |
| virtual QString | manufacturer () const |
| Reimplement this function in subclass to return the manufacturer of this screen. | |
| virtual QString | model () const |
| Reimplement this function in subclass to return the model of this screen. | |
| virtual QString | serialNumber () const |
| Reimplement this function in subclass to return the serial number of this screen. | |
| virtual QPlatformCursor * | cursor () const |
| Reimplement this function in subclass to return the cursor of the screen. | |
| virtual SubpixelAntialiasingType | subpixelAntialiasingTypeHint () const |
| Returns a hint about this screen's subpixel layout structure. | |
| virtual PowerState | powerState () const |
| Returns the current power state. | |
| virtual void | setPowerState (PowerState state) |
| Sets the power state for this screen. | |
| virtual QList< Mode > | modes () const |
| Reimplement this function in subclass to return the list of modes for this screen. | |
| virtual int | currentMode () const |
| Reimplement this function in subclass to return the index of the current mode from the modes list. | |
| virtual int | preferredMode () const |
| Reimplement this function in subclass to return the preferred mode index from the modes list. | |
Additional Inherited Members | |
| Public Types inherited from QFbScreen | |
| enum | Flag { DontForceFirstWindowToFullScreen = 0x01 } |
| Public Types inherited from QPlatformScreen | |
| enum | SubpixelAntialiasingType { Subpixel_None , Subpixel_RGB , Subpixel_BGR , Subpixel_VRGB , Subpixel_VBGR } |
| enum | PowerState { PowerStateOn , PowerStateStandby , PowerStateSuspend , PowerStateOff } |
| Public Slots inherited from QFbScreen | |
| virtual void | setDirty (const QRect &rect) |
| void | setPhysicalSize (const QSize &size) |
| void | setGeometry (const QRect &rect) |
| Public Slots inherited from QObject | |
| void | deleteLater () |
| \threadsafe | |
| Signals inherited from QObject | |
| void | destroyed (QObject *=nullptr) |
| This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked. | |
| void | objectNameChanged (const QString &objectName, QPrivateSignal) |
| This signal is emitted after the object's name has been changed. | |
| Static Public Member Functions inherited from QObject | |
| static QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
| \threadsafe | |
| static QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
| template<typename Func1 , typename Func2 > | |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection) |
| template<typename Func1 , typename Func2 > | |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot) |
| static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
| \threadsafe | |
| static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
| static bool | disconnect (const QMetaObject::Connection &) |
| Disconnect a connection. | |
| template<typename Func1 , typename Func2 > | |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot) |
| template<typename Func1 > | |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero) |
| Static Public Member Functions inherited from QPlatformScreen | |
| static QPlatformScreen * | platformScreenForWindow (const QWindow *window) |
| static int | angleBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b) |
| static QTransform | transformBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &target) |
| static QRect | mapBetween (Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &rect) |
| static QDpi | overrideDpi (const QDpi &in) |
| Protected Member Functions inherited from QFbScreen | |
| virtual QRegion | doRedraw () |
| void | initializeCompositor () |
| bool | event (QEvent *event) override |
| This virtual function receives events to an object and should return true if the event e was recognized and processed. | |
| QFbWindow * | windowForId (WId wid) const |
| Protected Member Functions inherited from QObject | |
| QObject * | sender () const |
| Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr. | |
| int | senderSignalIndex () const |
| int | receivers (const char *signal) const |
| Returns the number of receivers connected to the signal. | |
| bool | isSignalConnected (const QMetaMethod &signal) const |
| virtual void | timerEvent (QTimerEvent *event) |
| This event handler can be reimplemented in a subclass to receive timer events for the object. | |
| virtual void | childEvent (QChildEvent *event) |
| This event handler can be reimplemented in a subclass to receive child events. | |
| virtual void | customEvent (QEvent *event) |
| This event handler can be reimplemented in a subclass to receive custom events. | |
| virtual void | connectNotify (const QMetaMethod &signal) |
| virtual void | disconnectNotify (const QMetaMethod &signal) |
| QObject (QObjectPrivate &dd, QObject *parent=nullptr) | |
| Protected Member Functions inherited from QPlatformScreen | |
| void | resizeMaximizedWindows () |
| Convenience method to resize all the maximized and fullscreen windows of this platform screen. | |
| Protected Attributes inherited from QFbScreen | |
| QList< QFbWindow * > | mWindowStack |
| QRegion | mRepaintRegion |
| bool | mUpdatePending |
| QFbCursor * | mCursor |
| QRect | mGeometry |
| int | mDepth |
| QImage::Format | mFormat |
| QSizeF | mPhysicalSize |
| QImage | mScreenImage |
| Protected Attributes inherited from QObject | |
| QScopedPointer< QObjectData > | d_ptr |
| Protected Attributes inherited from QPlatformScreen | |
| QScopedPointer< QPlatformScreenPrivate > | d_ptr |
| Properties inherited from QObject | |
| QString | objectName |
| the name of this object | |
| Related Symbols inherited from QObject | |
| template< class T > T | qobject_cast (const QObject *object) |
| Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr. | |
| template< typename T > T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
| template< typename T > QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
| QObjectList | |
| \macro Q_CLASSINFO(Name, Value) | |
Definition at line 14 of file qlinuxfbscreen.h.
| QLinuxFbScreen::QLinuxFbScreen | ( | const QStringList & | args | ) |
Definition at line 255 of file qlinuxfbscreen.cpp.
| QLinuxFbScreen::~QLinuxFbScreen | ( | ) |
Definition at line 261 of file qlinuxfbscreen.cpp.
References resetTty().
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overridevirtual |
Reimplemented from QFbScreen.
Definition at line 371 of file qlinuxfbscreen.cpp.
References QPainter::CompositionMode_Source, QFbScreen::doRedraw(), QPainter::drawImage(), QRegion::isEmpty(), QFbScreen::mScreenImage, rect, and QPainter::setCompositionMode().
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overridevirtual |
This function is called when Qt needs to be able to grab the content of a window.
Returns the content of the window specified with the WId handle within the boundaries of QRect(x,y,width,height).
Reimplemented from QPlatformScreen.
Definition at line 390 of file qlinuxfbscreen.cpp.
References QPixmap::copy(), QPixmap::fromImage(), QImage::height(), QRect::height(), rect, QRect::topLeft(), QImage::width(), QRect::width(), window(), and QFbScreen::windowForId().
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overridevirtual |
Reimplemented from QFbScreen.
Definition at line 275 of file qlinuxfbscreen.cpp.
References arg, blankScreen(), determineDepth(), determineFormat(), determineGeometry(), determinePhysicalSize(), QFile::exists(), QFbScreen::geometry(), QRect::height(), QFbScreen::initializeCompositor(), QString::isEmpty(), match(), QFbScreen::mCursor, QFbScreen::mDepth, QFbScreen::mFormat, QFbScreen::mGeometry, QFbScreen::mPhysicalSize, openFramebufferDevice(), openTtyDevice(), qErrnoWarning(), qPrintable, qWarning, QRect::setSize(), QRect::setTopLeft(), QRect::size(), switchToGraphicsMode(), QRect::width(), QRect::x(), and QRect::y().
Here is the call graph for this function:| uchar* QLinuxFbScreen::data |
Definition at line 37 of file qlinuxfbscreen.h.
| int QLinuxFbScreen::offset |
Definition at line 38 of file qlinuxfbscreen.h.
| int QLinuxFbScreen::size |
Definition at line 38 of file qlinuxfbscreen.h.
1.9.7