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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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QQnxRasterBackingStore Class Reference

#include <qqnxrasterbackingstore.h>

+ Inheritance diagram for QQnxRasterBackingStore:
+ Collaboration diagram for QQnxRasterBackingStore:

Public Member Functions

 QQnxRasterBackingStore (QWindow *window)
 
 ~QQnxRasterBackingStore ()
 
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
 
bool scroll (const QRegion &area, int dx, int dy) override
 Scrolls the given area dx pixels to the right and dy downward; both dx and dy may be negative.
 
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.
 
- 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.
 
void setRhiConfig (const QPlatformBackingStoreRhiConfig &config)
 
QRhirhi () 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 15 of file qqnxrasterbackingstore.h.

Constructor & Destructor Documentation

◆ QQnxRasterBackingStore()

QT_BEGIN_NAMESPACE QQnxRasterBackingStore::QQnxRasterBackingStore ( QWindow * window)

Definition at line 15 of file qqnxrasterbackingstore.cpp.

References Q_FUNC_INFO, qCDebug, and QPlatformBackingStore::window().

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◆ ~QQnxRasterBackingStore()

QQnxRasterBackingStore::~QQnxRasterBackingStore ( )

Definition at line 25 of file qqnxrasterbackingstore.cpp.

References Q_FUNC_INFO, qCDebug, and QPlatformBackingStore::window().

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Member Function Documentation

◆ beginPaint()

void QQnxRasterBackingStore::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 84 of file qqnxrasterbackingstore.cpp.

References QQnxRasterWindow::adjustBufferSize(), Q_FUNC_INFO, Q_SCREEN_CHECKERROR, Q_UNUSED, qCDebug, QQnxWindow::screen(), and QPlatformBackingStore::window().

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◆ endPaint()

void QQnxRasterBackingStore::endPaint ( )
overridevirtual

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

See also
beginPaint(), paintDevice()

Reimplemented from QPlatformBackingStore.

Definition at line 114 of file qqnxrasterbackingstore.cpp.

References Q_FUNC_INFO, qCDebug, and QPlatformBackingStore::window().

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◆ flush()

void QQnxRasterBackingStore::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 38 of file qqnxrasterbackingstore.cpp.

References Q_FUNC_INFO, Q_UNUSED, qCDebug, and QPlatformBackingStore::window().

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◆ paintDevice()

QPaintDevice * QQnxRasterBackingStore::paintDevice ( )
overridevirtual

Implement this function to return the appropriate paint device.

Implements QPlatformBackingStore.

Definition at line 30 of file qqnxrasterbackingstore.cpp.

References QQnxBuffer::image(), and QQnxRasterWindow::renderBuffer().

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◆ resize()

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

Implements QPlatformBackingStore.

Definition at line 60 of file qqnxrasterbackingstore.cpp.

References Q_FUNC_INFO, Q_UNUSED, qCDebug, and QPlatformBackingStore::window().

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◆ scroll()

bool QQnxRasterBackingStore::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 70 of file qqnxrasterbackingstore.cpp.

References area(), Q_FUNC_INFO, qCDebug, QQnxRasterWindow::scroll(), and QPlatformBackingStore::window().

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