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Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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QtWaylandClient::QWaylandShmBackingStore Class Reference

#include <qwaylandshmbackingstore_p.h>

+ Inheritance diagram for QtWaylandClient::QWaylandShmBackingStore:
+ Collaboration diagram for QtWaylandClient::QWaylandShmBackingStore:

Public Member Functions

 QWaylandShmBackingStore (QWindow *window, QWaylandDisplay *display)
 
 ~QWaylandShmBackingStore () override
 
QPaintDevicepaintDevice () override
 Implement this function to return the appropriate paint device.
 
void flush (QWindow *window, const QRegion &region, const QPoint &offset) override
 Flushes the given region from the specified window.
 
void resize (const QSize &size, const QRegion &staticContents) override
 
void beginPaint (const QRegion &region) override
 This function is called before painting onto the surface begins, with the region in which the painting will occur.
 
void endPaint () override
 This function is called after painting onto the surface has ended.
 
QWaylandAbstractDecorationwindowDecoration () const
 
QMargins windowDecorationMargins () const
 
QImageentireSurface () const
 
QImagecontentSurface () const
 
bool recreateBackBufferIfNeeded ()
 
QWaylandWindowwaylandWindow () const
 
void iterateBuffer ()
 
- Public Member Functions inherited from QPlatformBackingStore
 QPlatformBackingStore (QWindow *window)
 Constructs an empty surface for the given top-level window.
 
virtual ~QPlatformBackingStore ()
 Destroys this surface.
 
QWindowwindow () const
 Returns a pointer to the top-level window associated with this surface.
 
QBackingStorebackingStore () const
 Returns a pointer to the backing store associated with this surface.
 
virtual FlushResult rhiFlush (QWindow *window, qreal sourceDevicePixelRatio, const QRegion &region, const QPoint &offset, QPlatformTextureList *textures, bool translucentBackground)
 Flushes the given region from the specified window, and compositing it with the specified textures list.
 
virtual QImage toImage () const
 Implemented in subclasses to return the content of the backingstore as a QImage.
 
virtual QRhiTexturetoTexture (QRhiResourceUpdateBatch *resourceUpdates, const QRegion &dirtyRegion, TextureFlags *flags) const
 May be reimplemented in subclasses to return the content of the backingstore as an QRhiTexture.
 
virtual QPlatformGraphicsBuffergraphicsBuffer () const
 Accessor for a backingstores graphics buffer abstraction.
 
virtual bool scroll (const QRegion &area, int dx, int dy)
 Scrolls the given area dx pixels to the right and dy downward; both dx and dy may be negative.
 
void createRhi (QWindow *window, QPlatformBackingStoreRhiConfig config)
 
QRhirhi (QWindow *window) const
 
void surfaceAboutToBeDestroyed ()
 
void graphicsDeviceReportedLost (QWindow *window)
 

Additional Inherited Members

- Public Types inherited from QPlatformBackingStore
enum  FlushResult { FlushSuccess , FlushFailed , FlushFailedDueToLostDevice }
 
enum  TextureFlag { TextureSwizzle = 0x01 , TextureFlip = 0x02 , TexturePremultiplied = 0x04 }
 

Detailed Description

Definition at line 58 of file qwaylandshmbackingstore_p.h.

Constructor & Destructor Documentation

◆ QWaylandShmBackingStore()

QtWaylandClient::QWaylandShmBackingStore::QWaylandShmBackingStore ( QWindow * window,
QWaylandDisplay * display )

Definition at line 141 of file qwaylandshmbackingstore.cpp.

◆ ~QWaylandShmBackingStore()

QtWaylandClient::QWaylandShmBackingStore::~QWaylandShmBackingStore ( )
override

Definition at line 159 of file qwaylandshmbackingstore.cpp.

Member Function Documentation

◆ beginPaint()

void QtWaylandClient::QWaylandShmBackingStore::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 185 of file qwaylandshmbackingstore.cpp.

◆ contentSurface()

QImage * QtWaylandClient::QWaylandShmBackingStore::contentSurface ( ) const

Definition at line 361 of file qwaylandshmbackingstore.cpp.

◆ endPaint()

void QtWaylandClient::QWaylandShmBackingStore::endPaint ( )
overridevirtual

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

See also
beginPaint(), paintDevice()

Reimplemented from QPlatformBackingStore.

Definition at line 206 of file qwaylandshmbackingstore.cpp.

◆ entireSurface()

QImage * QtWaylandClient::QWaylandShmBackingStore::entireSurface ( ) const

Definition at line 356 of file qwaylandshmbackingstore.cpp.

◆ flush()

void QtWaylandClient::QWaylandShmBackingStore::flush ( QWindow * window,
const QRegion & region,
const QPoint & offset )
overridevirtual

Flushes the given region from the specified window.

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.

Unlike rhiFlush(), this function's default implementation does nothing. It is expected that subclasses provide a platform-specific (non-QRhi-based) implementation, if applicable on the given platform.

See also
rhiFlush()

Reimplemented from QPlatformBackingStore.

Definition at line 213 of file qwaylandshmbackingstore.cpp.

Referenced by testing.tools.encode_pdf_filter._SinkPdfStream::close().

+ Here is the caller graph for this function:

◆ iterateBuffer()

void QtWaylandClient::QWaylandShmBackingStore::iterateBuffer ( )

◆ paintDevice()

QPaintDevice * QtWaylandClient::QWaylandShmBackingStore::paintDevice ( )
overridevirtual

Implement this function to return the appropriate paint device.

Implements QPlatformBackingStore.

Definition at line 170 of file qwaylandshmbackingstore.cpp.

◆ recreateBackBufferIfNeeded()

bool QtWaylandClient::QWaylandShmBackingStore::recreateBackBufferIfNeeded ( )

Definition at line 295 of file qwaylandshmbackingstore.cpp.

◆ resize()

void QtWaylandClient::QWaylandShmBackingStore::resize ( const QSize & size,
const QRegion & staticContents )
overridevirtual

Implements QPlatformBackingStore.

Definition at line 251 of file qwaylandshmbackingstore.cpp.

◆ waylandWindow()

QWaylandWindow * QtWaylandClient::QWaylandShmBackingStore::waylandWindow ( ) const

Definition at line 423 of file qwaylandshmbackingstore.cpp.

◆ windowDecoration()

QWaylandAbstractDecoration * QtWaylandClient::QWaylandShmBackingStore::windowDecoration ( ) const

Definition at line 411 of file qwaylandshmbackingstore.cpp.

◆ windowDecorationMargins()

QMargins QtWaylandClient::QWaylandShmBackingStore::windowDecorationMargins ( ) const

Definition at line 416 of file qwaylandshmbackingstore.cpp.


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