內容

• 特性
• 公共函數
• 公共槽
• 信號
• 詳細描述

QRenderSurfaceSelector Class

( Qt3DRender::QRenderSurfaceSelector )

Provides a way of specifying the render surface 更多...

頭：	#include <QRenderSurfaceSelector>
qmake:	QT += 3drender
Since:	Qt 5.7
實例化：	RenderSurfaceSelector
繼承：	Qt3DRender::QFrameGraphNode

• 所有成員列錶，包括繼承成員

特性

• externalRenderTargetSize : QSize
• surface : QObject *
• surfacePixelRatio : float

• 3 特性繼承自 Qt3DCore::QNode
• 1 特性繼承自 QObject

公共函數

	QRenderSurfaceSelector (Qt3DCore::QNode * parent = nullptr)
QSize	externalRenderTargetSize () const
QObject *	surface () const
float	surfacePixelRatio () const

• 1 公共函數繼承自 Qt3DRender::QFrameGraphNode
• 11 公共函數繼承自 Qt3DCore::QNode
• 32 公共函數繼承自 QObject

公共槽

void	setExternalRenderTargetSize (const QSize & size )
void	setSurface (QObject * surfaceObject )
void	setSurfacePixelRatio (float ratio )

• 3 公共槽繼承自 Qt3DCore::QNode
• 1 公共槽繼承自 QObject

信號

void	externalRenderTargetSizeChanged (const QSize & size )
void	surfaceChanged (QObject * surface )
void	surfacePixelRatioChanged (float ratio )

• 4 信號繼承自 Qt3DCore::QNode
• 2 信號繼承自 QObject

額外繼承成員

• 11 靜態公共成員繼承自 QObject
• 1 保護函數繼承自 Qt3DRender::QFrameGraphNode
• 2 保護函數繼承自 Qt3DCore::QNode
• 9 保護函數繼承自 QObject

詳細描述

Provides a way of specifying the render surface

The Qt3DRender::QRenderSurfaceSelector can be used to select the surface, where Qt3D renders the content. The surface can either be window surface or offscreen surface. The externalRenderTargetSize is used to specify the actual size of the surface when offscreen surface is used.

When DPI scaling is used by the system, the logical surface size, which is used by mouse events, and the actual 'physical' size of the surface can differ. The surfacePixelRatio is the factor to convert the logical size to the physical size.

另請參閱 QWindow , QOffscreenSurface ，和 QSurface .

特性文檔編製

externalRenderTargetSize : QSize

Holds the size of the external render target.

訪問函數：

QSize	externalRenderTargetSize () const
void	setExternalRenderTargetSize (const QSize & size )

通知程序信號：

void	externalRenderTargetSizeChanged (const QSize & size )

surface : QObject *

Holds the surface

訪問函數：

QObject *	surface () const
void	setSurface (QObject * surfaceObject )

通知程序信號：

void	surfaceChanged (QObject * surface )

surfacePixelRatio : float

Holds the surfacePixelRatio of the surface.

訪問函數：

float	surfacePixelRatio () const
void	setSurfacePixelRatio (float ratio )

通知程序信號：

void	surfacePixelRatioChanged (float ratio )

成員函數文檔編製

QRenderSurfaceSelector:: QRenderSurfaceSelector ( Qt3DCore::QNode * parent = nullptr)

構造 QRenderSurfaceSelector with given parent .

[slot] void QRenderSurfaceSelector:: setExternalRenderTargetSize (const QSize & size )

Sets render target size if different than underlying surface size. Tells picking the correct size.

注意： setter 函數對於特性 externalRenderTargetSize .

另請參閱 externalRenderTargetSize ().

[slot] void QRenderSurfaceSelector:: setSurface ( QObject * surfaceObject )

集 surfaceObject .

注意： setter 函數對於特性 surface .

另請參閱 surface ().