QtBase  v6.3.1
Classes | Public Member Functions | List of all members
QCALayerBackingStore Class Reference

#include <qcocoabackingstore.h>

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Public Member Functions

 QCALayerBackingStore (QWindow *window)
 
 ~QCALayerBackingStore ()
 
void resize (const QSize &size, const QRegion &staticContents) override
 
void beginPaint (const QRegion &region) override
 
QPaintDevicepaintDevice () override
 
void endPaint () override
 
bool scroll (const QRegion &region, int dx, int dy) override
 
void flush (QWindow *, const QRegion &, const QPoint &) override
 
void composeAndFlush (QWindow *window, const QRegion &region, const QPoint &offset, QPlatformTextureList *textures, bool translucentBackground) override
 
QImage toImage () const override
 
QPlatformGraphicsBuffergraphicsBuffer () const override
 
- Public Member Functions inherited from QObject
Q_INVOKABLE QObject (QObject *parent=nullptr)
 
virtual ~QObject ()
 
virtual bool event (QEvent *event)
 
QString objectName () const
 
void setObjectName (const QString &name)
 
QBindable< QStringbindableObjectName ()
 
bool isWidgetType () const
 
bool isWindowType () const
 
bool signalsBlocked () const noexcept
 
bool blockSignals (bool b) noexcept
 
QThreadthread () const
 
void moveToThread (QThread *thread)
 
int startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
 
void killTimer (int id)
 
template<typename T >
T findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 
template<typename T >
QList< TfindChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 
template<typename T >
QList< TfindChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
 
const QObjectListchildren () const
 
void setParent (QObject *parent)
 
void installEventFilter (QObject *filterObj)
 
void removeEventFilter (QObject *obj)
 
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
 
void dumpObjectInfo () const
 
bool setProperty (const char *name, const QVariant &value)
 
QVariant property (const char *name) const
 
QList< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () const
 
bool inherits (const char *classname) const
 
- Public Member Functions inherited from QPlatformBackingStore
 QPlatformBackingStore (QWindow *window)
 
virtual ~QPlatformBackingStore ()
 
QWindowwindow () const
 
QBackingStorebackingStore () const
 
virtual GLuint toTexture (const QRegion &dirtyRegion, QSize *textureSize, TextureFlags *flags) const
 

Additional Inherited Members

- Public Types inherited from QPlatformBackingStore
enum  TextureFlag { TextureSwizzle = 0x01 , TextureFlip = 0x02 , TexturePremultiplied = 0x04 }
 
- Public Slots inherited from QObject
void deleteLater ()
 
- Signals inherited from QObject
void destroyed (QObject *=nullptr)
 
void objectNameChanged (const QString &objectName, QPrivateSignal)
 
- 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)
 
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::FunctionPointer< Func2 >::Object *receiver, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)
 
static QMetaObject::Connection ::type connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot)
 
static QMetaObject::Connection ::type connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot)
 
template<typename Func1 , typename Func2 >
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static bool disconnect (const QMetaObject::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)
 
- Protected Member Functions inherited from QObject
QObjectsender () const
 
int senderSignalIndex () const
 
int receivers (const char *signal) const
 
bool isSignalConnected (const QMetaMethod &signal) const
 
virtual void timerEvent (QTimerEvent *event)
 
virtual void childEvent (QChildEvent *event)
 
virtual void customEvent (QEvent *event)
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
 QObject (QObjectPrivate &dd, QObject *parent=nullptr)
 
- Protected Member Functions inherited from QCocoaBackingStore
 QCocoaBackingStore (QWindow *window)
 
QCFType< CGColorSpaceRefcolorSpace () const
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 
- Properties inherited from QObject
QString objectName
 the name of this object More...
 

Detailed Description

Definition at line 61 of file qcocoabackingstore.h.

Constructor & Destructor Documentation

◆ QCALayerBackingStore()

QCALayerBackingStore::QCALayerBackingStore ( QWindow window)

Definition at line 67 of file qcocoabackingstore.mm.

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◆ ~QCALayerBackingStore()

QCALayerBackingStore::~QCALayerBackingStore ( )

Definition at line 79 of file qcocoabackingstore.mm.

Member Function Documentation

◆ beginPaint()

void QCALayerBackingStore::beginPaint ( const QRegion )
overridevirtual

This function is called before painting onto the surface begins, with the region in which the painting will occur.

See also
endPaint(), paintDevice()

Reimplemented from QPlatformBackingStore.

Definition at line 118 of file qcocoabackingstore.mm.

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◆ composeAndFlush()

void QCALayerBackingStore::composeAndFlush ( QWindow window,
const QRegion region,
const QPoint offset,
QPlatformTextureList textures,
bool  translucentBackground 
)
overridevirtual

Flushes the given region from the specified window onto the screen, and composes it with the specified textures.

The default implementation retrieves the contents using toTexture() and composes using OpenGL. May be reimplemented in subclasses if there is a more efficient native way to do it.

Note
region is relative to the window which may not be top-level in case window corresponds to a native child widget. offset is the position of the native child relative to the top-level window.

Reimplemented from QPlatformBackingStore.

Definition at line 434 of file qcocoabackingstore.mm.

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◆ endPaint()

void QCALayerBackingStore::endPaint ( )
overridevirtual

This function is called after painting onto the surface has ended.

See also
beginPaint(), paintDevice()

Reimplemented from QPlatformBackingStore.

Definition at line 244 of file qcocoabackingstore.mm.

◆ flush()

void QCALayerBackingStore::flush ( QWindow flushedWindow,
const QRegion region,
const QPoint offset 
)
overridevirtual

Implements QPlatformBackingStore.

Definition at line 310 of file qcocoabackingstore.mm.

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◆ graphicsBuffer()

QPlatformGraphicsBuffer * QCALayerBackingStore::graphicsBuffer ( ) const
overridevirtual

Accessor for a backingstores graphics buffer abstraction

Reimplemented from QPlatformBackingStore.

Definition at line 483 of file qcocoabackingstore.mm.

◆ paintDevice()

QPaintDevice * QCALayerBackingStore::paintDevice ( )
overridevirtual

Implement this function to return the appropriate paint device.

Implements QPlatformBackingStore.

Definition at line 238 of file qcocoabackingstore.mm.

◆ resize()

void QCALayerBackingStore::resize ( const QSize size,
const QRegion staticContents 
)
overridevirtual

Implements QPlatformBackingStore.

Definition at line 108 of file qcocoabackingstore.mm.

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◆ scroll()

bool QCALayerBackingStore::scroll ( const QRegion area,
int  dx,
int  dy 
)
overridevirtual

Scrolls the given area dx pixels to the right and dy downward; both dx and dy may be negative.

Returns true if the area was scrolled successfully; false otherwise.

Reimplemented from QPlatformBackingStore.

Definition at line 253 of file qcocoabackingstore.mm.

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◆ toImage()

QImage QCALayerBackingStore::toImage ( ) const
overridevirtual

Implemented in subclasses to return the content of the backingstore as a QImage.

If QPlatformIntegration::RasterGLSurface is supported, either this function or toTexture() must be implemented.

The returned image is only valid until the next operation (resize, paint, scroll, or flush) on the backingstore. The caller must not store the return value between calls, but instead call this function before each use, or make an explicit copy.

See also
toTexture()

Reimplemented from QPlatformBackingStore.

Definition at line 448 of file qcocoabackingstore.mm.

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The documentation for this class was generated from the following files: