#include <qwidgetrepaintmanager_p.h>

Collaboration diagram for QWidgetRepaintManager:

Public Types
enum	UpdateTime { UpdateNow , UpdateLater }

enum	BufferState { BufferValid , BufferInvalid }

Public Member Functions
	QWidgetRepaintManager (QWidget *t)

	~QWidgetRepaintManager ()

QBackingStore *	backingStore () const

void	setBackingStore (QBackingStore *backingStore)

template<class T >
void	markDirty (const T &r, QWidget *widget, UpdateTime updateTime=UpdateLater, BufferState bufferState=BufferValid)

void	removeDirtyWidget (QWidget *w)

void	sync (QWidget *exposedWidget, const QRegion &exposedRegion)
	Synchronizes the exposedRegion of the exposedWidget with the backing store.

void	sync ()
	Synchronizes the backing store, i.e.

void	markNeedsFlush (QWidget *widget, const QRegion &region, const QPoint &topLevelOffset)
	Marks the region of the widget as needing a flush.

void	addStaticWidget (QWidget *widget)

void	moveStaticWidgets (QWidget *reparented)

void	removeStaticWidget (QWidget *widget)

QRegion	staticContents (QWidget *widget=nullptr, const QRect &withinClipRect=QRect()) const
	Returns the static content inside the parent if non-zero; otherwise the static content for the entire backing store is returned.

QRegion	dirtyRegion () const

QList< QWidget * >	dirtyWidgetList () const

bool	isDirty () const

bool	bltRect (const QRect &rect, int dx, int dy, QWidget *widget)

QRhi *	rhi () const

Detailed Description

Definition at line 32 of file qwidgetrepaintmanager_p.h.

Member Enumeration Documentation

◆ BufferState

enum QWidgetRepaintManager::BufferState

Enumerator
BufferValid
BufferInvalid

Definition at line 42 of file qwidgetrepaintmanager_p.h.

◆ UpdateTime

enum QWidgetRepaintManager::UpdateTime

Enumerator
UpdateNow
UpdateLater

Definition at line 36 of file qwidgetrepaintmanager_p.h.

Constructor & Destructor Documentation

◆ QWidgetRepaintManager()

QWidgetRepaintManager::QWidgetRepaintManager ( QWidget * t )

Definition at line 74 of file qwidgetrepaintmanager.cpp.

References Q_ASSERT.

◆ ~QWidgetRepaintManager()

QWidgetRepaintManager::~QWidgetRepaintManager ( )

Definition at line 101 of file qwidgetrepaintmanager.cpp.

References QList< T >::at(), and QList< T >::size().

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Member Function Documentation

◆ addStaticWidget()

void QWidgetRepaintManager::addStaticWidget ( QWidget * widget )

Definition at line 1105 of file qwidgetrepaintmanager.cpp.

References QList< T >::append(), QListSpecialMethodsBase< T >::contains(), Q_ASSERT, QWidget::testAttribute(), Qt::WA_StaticContents, and widget.

Referenced by moveStaticWidgets().

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◆ backingStore()

QBackingStore * QWidgetRepaintManager::backingStore ( ) const

inline

Definition at line 51 of file qwidgetrepaintmanager_p.h.

Referenced by QWidget::backingStore().

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◆ bltRect()

bool QWidgetRepaintManager::bltRect	(	const QRect &	rect,
		int	dx,
		int	dy,
		QWidget *	widget
	)

Definition at line 523 of file qwidgetrepaintmanager.cpp.

References QRegion::intersects(), QWidget::mapTo(), pos, rect, QBackingStore::scroll(), and widget.

Referenced by QWidgetPrivate::moveRect(), and QWidgetPrivate::scrollRect().

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◆ dirtyRegion()

QRegion QWidgetRepaintManager::dirtyRegion ( ) const

inline

Definition at line 69 of file qwidgetrepaintmanager_p.h.

◆ dirtyWidgetList()

QList< QWidget * > QWidgetRepaintManager::dirtyWidgetList ( ) const

inline

Definition at line 70 of file qwidgetrepaintmanager_p.h.

◆ isDirty()

bool QWidgetRepaintManager::isDirty ( ) const

Definition at line 1215 of file qwidgetrepaintmanager.cpp.

References QRegion::isEmpty(), and QList< T >::isEmpty().

Referenced by sync().

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◆ markDirty()

template<class T >

template void QWidgetRepaintManager::markDirty< QRegion >	(	const T &	r,
		QWidget *	widget,
		UpdateTime	updateTime = `UpdateLater`,
		BufferState	bufferState = `BufferValid`
	)

Marks the region of the widget as dirty (if not already marked as dirty) and posts an UpdateRequest event to the top-level widget (if not already posted).

If updateTime is UpdateNow, the event is sent immediately instead of posted.

If bufferState is BufferInvalid, all widgets intersecting with the region will be dirty.

If the widget paints directly on screen, the event is sent to the widget instead of the top-level widget, and bufferState is completely ignored.

Definition at line 169 of file qwidgetrepaintmanager.cpp.

References BufferInvalid, QWidgetPrivate::get(), QRect::intersected(), QRegion::isEmpty(), QList< T >::isEmpty(), QWidget::isVisible(), QWidget::mapTo(), Q_ASSERT, qCInfo, QWidget::size, QRegion::translated(), QRect::translated(), UpdateNow, QWidget::updatesEnabled, widget, widgetRectFor(), and QWidget::window().

Referenced by QWidgetPrivate::moveRect(), and QWidgetPrivate::scrollRect().

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◆ markNeedsFlush()

void QWidgetRepaintManager::markNeedsFlush	(	QWidget *	widget,
		const QRegion &	region,
		const QPoint &	topLevelOffset
	)

Marks the region of the widget as needing a flush.

The region will be copied from the backing store to the widget's native parent next time flush() is called.

Paint on screen widgets are ignored.

Definition at line 917 of file qwidgetrepaintmanager.cpp.

References hasPlatformWindow(), QRegion::isEmpty(), QWidget::isWindow(), QWidget::mapTo(), markNeedsFlush(), QWidget::nativeParentWidget(), qCInfo, QRegion::translated(), and widget.

Referenced by QWidgetPrivate::drawWidget(), markNeedsFlush(), QWidgetPrivate::moveRect(), QWidgetPrivate::scrollRect(), and sync().

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◆ moveStaticWidgets()

void QWidgetRepaintManager::moveStaticWidgets ( QWidget * reparented )

Definition at line 1117 of file qwidgetrepaintmanager.cpp.

References addStaticWidget(), QList< T >::at(), i, QWidget::isAncestorOf(), Q_ASSERT, QList< T >::removeAt(), and QList< T >::size().

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◆ removeDirtyWidget()

void QWidgetRepaintManager::removeDirtyWidget ( QWidget * w )

Definition at line 293 of file qwidgetrepaintmanager.cpp.

References QList< T >::at(), child, QObjectData::children, i, qobject_cast< QWidget * >(), QList< T >::removeAll(), removeDirtyWidget(), and QList< T >::size().

Referenced by removeDirtyWidget().

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◆ removeStaticWidget()

void QWidgetRepaintManager::removeStaticWidget ( QWidget * widget )

Definition at line 1137 of file qwidgetrepaintmanager.cpp.

References QList< T >::removeAll(), and widget.

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◆ rhi()

QRhi * QWidgetRepaintManager::rhi ( ) const

Definition at line 1312 of file qwidgetrepaintmanager.cpp.

References QBackingStore::handle(), and QPlatformBackingStore::rhi().

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◆ setBackingStore()

void QWidgetRepaintManager::setBackingStore ( QBackingStore * backingStore )

inline

Definition at line 52 of file qwidgetrepaintmanager_p.h.

◆ staticContents()

QRegion QWidgetRepaintManager::staticContents	(	QWidget *	parent = `nullptr`,
		const QRect &	withinClipRect = `QRect()`
	)		const

Returns the static content inside the parent if non-zero; otherwise the static content for the entire backing store is returned.

The content will be clipped to withinClipRect if non-empty.

Definition at line 1156 of file qwidgetrepaintmanager.cpp.

References QList< T >::at(), QWidgetPrivate::clipRect(), QWidgetPrivate::clipToEffectiveMask(), QWidgetPrivate::extra, i, QRegion::isEmpty(), QRect::isEmpty(), QWidgetPrivate::isOpaque, parent, rect, QBackingStore::size(), QList< T >::size(), QWidgetPrivate::subtractOpaqueSiblings(), QWidget::testAttribute(), QRegion::translate(), QRect::translated(), and Qt::WA_StaticContents.

Referenced by QWidgetPrivate::invalidateBackingStore_resizeHelper().

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◆ sync() [1/2]

void QWidgetRepaintManager::sync ( )

Synchronizes the backing store, i.e.

dirty areas are repainted and flushed.

Definition at line 635 of file qwidgetrepaintmanager.cpp.

References QList< T >::at(), QList< T >::clear(), i, QWidget::isVisible(), qCInfo, qt_widget_private(), and QList< T >::size().

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◆ sync() [2/2]

void QWidgetRepaintManager::sync	(	QWidget *	exposedWidget,
		const QRegion &	exposedRegion
	)

Synchronizes the exposedRegion of the exposedWidget with the backing store.

If there are dirty widgets, including but not limited to the exposedWidget, these will be repainted first. The backingstore is then flushed to the screen, regardless of whether or not there were any repaints.

Definition at line 602 of file qwidgetrepaintmanager.cpp.

References hasPlatformWindow(), isDirty(), QRegion::isEmpty(), QSize::isValid(), QWidget::isVisible(), QWidget::mapTo(), markNeedsFlush(), qCInfo, QBackingStore::size(), QWidget::testAttribute(), QWidget::updatesEnabled, Qt::WA_Mapped, and widgetTexturesFor().

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

qtbase/src/widgets/kernel/qwidgetrepaintmanager_p.h
qtbase/src/widgets/kernel/qwidgetrepaintmanager.cpp

Public Types

Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ BufferState

◆ UpdateTime

Constructor & Destructor Documentation

◆ QWidgetRepaintManager()

◆ ~QWidgetRepaintManager()

Member Function Documentation

◆ addStaticWidget()

◆ backingStore()

◆ bltRect()

◆ dirtyRegion()

◆ dirtyWidgetList()

◆ isDirty()

◆ markDirty()

◆ markNeedsFlush()

◆ moveStaticWidgets()

◆ removeDirtyWidget()

◆ removeStaticWidget()

◆ rhi()

◆ setBackingStore()

◆ staticContents()

◆ sync() [1/2]

◆ sync() [2/2]