#include <qwaylandshmbackingstore_p.h>

Inheritance diagram for QtWaylandClient::QWaylandShmBackingStore:

Collaboration diagram for QtWaylandClient::QWaylandShmBackingStore:

Public Member Functions
	QWaylandShmBackingStore (QWindow window, QWaylandDisplay display)

	~QWaylandShmBackingStore () override

QPaintDevice *	paintDevice () 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	resize (const QSize &size)

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.

QWaylandAbstractDecoration *	windowDecoration () const

QMargins	windowDecorationMargins () const

QImage *	entireSurface () const

QImage *	contentSurface () const

void	ensureSize ()

QWaylandWindow *	waylandWindow () 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.

QWindow *	window () const
	Returns a pointer to the top-level window associated with this surface.

QBackingStore *	backingStore () const
	Returns a pointer to the backing store associated with this surface.

virtual QPaintDevice *	paintDevice ()=0
	Implement this function to return the appropriate paint device.

virtual void	flush (QWindow *window, const QRegion &region, const QPoint &offset)
	Flushes the given region from the specified window.

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 QRhiTexture *	toTexture (QRhiResourceUpdateBatch resourceUpdates, const QRegion &dirtyRegion, TextureFlags flags) const
	May be reimplemented in subclasses to return the content of the backingstore as an QRhiTexture.

virtual QPlatformGraphicsBuffer *	graphicsBuffer () const
	Accessor for a backingstores graphics buffer abstraction.

virtual void	resize (const QSize &size, const QRegion &staticContents)=0

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.

virtual void	beginPaint (const QRegion &)
	This function is called before painting onto the surface begins, with the region in which the painting will occur.

virtual void	endPaint ()
	This function is called after painting onto the surface has ended.

void	setRhiConfig (const QPlatformBackingStoreRhiConfig &config)

QRhi *	rhi () const

QRhiSwapChain *	rhiSwapChain () const

void	surfaceAboutToBeDestroyed ()

void	graphicsDeviceReportedLost ()

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 52 of file qwaylandshmbackingstore_p.h.

Constructor & Destructor Documentation

◆ QWaylandShmBackingStore()

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

Definition at line 135 of file qwaylandshmbackingstore.cpp.

References QObject::connect(), copy(), QSize::isValid(), qDeleteAll(), QtWaylandClient::QWaylandDisplay::reconnected(), resize(), waylandWindow(), and QPlatformBackingStore::window().

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◆ ~QWaylandShmBackingStore()

QtWaylandClient::QWaylandShmBackingStore::~QWaylandShmBackingStore ( )

override

Definition at line 153 of file qwaylandshmbackingstore.cpp.

References qDeleteAll(), and waylandWindow().

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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 169 of file qwaylandshmbackingstore.cpp.

References QPainter::CompositionMode_Source, ensureSize(), QImage::hasAlphaChannel(), QtWaylandClient::QWaylandShmBuffer::image(), paintDevice(), rect, QtWaylandClient::QWaylandWindow::setCanResize(), Qt::transparent, and waylandWindow().

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◆ contentSurface()

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

Definition at line 309 of file qwaylandshmbackingstore.cpp.

References QtWaylandClient::QWaylandShmBuffer::image(), QtWaylandClient::QWaylandShmBuffer::imageInsideMargins(), windowDecoration(), and windowDecorationMargins().

Referenced by paintDevice().

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◆ 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 185 of file qwaylandshmbackingstore.cpp.

References flush(), QtWaylandClient::QWaylandWindow::setCanResize(), waylandWindow(), and QPlatformBackingStore::window().

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◆ ensureSize()

void QtWaylandClient::QWaylandShmBackingStore::ensureSize ( )

Definition at line 193 of file qwaylandshmbackingstore.cpp.

References QtWaylandClient::QWaylandWindow::createDecoration(), resize(), QtWaylandClient::QWaylandWindow::setBackingStore(), and waylandWindow().

Referenced by beginPaint(), and QtWaylandClient::QWaylandWindow::ensureSize().

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◆ entireSurface()

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

Definition at line 304 of file qwaylandshmbackingstore.cpp.

References QtWaylandClient::QWaylandShmBuffer::image().

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◆ 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.