QwtPlot 的替代画布，派生自 QOpenGLWidget 更多...

#include <qwt_plot_opengl_canvas.h>

类 QwtPlotOpenGLCanvas 继承关系图:

类
class	PrivateData

Public 槽
void	replot ()
	重绘画布

Public 成员函数
	QwtPlotOpenGLCanvas (QwtPlot *=nullptr)
	构造函数

	QwtPlotOpenGLCanvas (const QSurfaceFormat &, QwtPlot *=nullptr)
	构造函数（带表面格式）

virtual	~QwtPlotOpenGLCanvas ()
	析构函数

virtual Q_INVOKABLE void	invalidateBackingStore () override
	使后备存储失效

Q_INVOKABLE QPainterPath	borderPath (const QRect &) const
	获取边界路径

virtual bool	event (QEvent *) override
	处理事件

Public 成员函数继承自 QwtPlotAbstractGLCanvas
	QwtPlotAbstractGLCanvas (QWidget *canvasWidget)
	Paint attributes

virtual	~QwtPlotAbstractGLCanvas ()
	析构函数

void	setPaintAttribute (PaintAttribute, bool on=true)
	更改绘制属性

bool	testPaintAttribute (PaintAttribute) const
	测试绘制属性是否启用

void	setFrameStyle (int style)
	设置框架样式

int	frameStyle () const
	获取框架样式

void	setFrameShadow (QFrame::Shadow)
	设置框架阴影

QFrame::Shadow	frameShadow () const
	获取框架阴影

void	setFrameShape (QFrame::Shape)
	设置框架形状

QFrame::Shape	frameShape () const
	获取框架形状

void	setLineWidth (int)
	设置框架线宽度

int	lineWidth () const
	获取框架的线宽度

void	setMidLineWidth (int)
	设置框架中线宽度

int	midLineWidth () const
	获取框架的中线宽度

int	frameWidth () const
	获取框架宽度，取决于样式、线宽和中线宽度

QRect	frameRect () const
	获取绘制框架的矩形区域

Public 成员函数继承自 QwtPlotAbstractCanvas
	QwtPlotAbstractCanvas (QWidget *canvasWidget)
	构造函数

virtual	~QwtPlotAbstractCanvas ()
	析构函数

QwtPlot *	plot ()
	返回父绘图部件

const QwtPlot *	plot () const
	返回父绘图部件

void	setFocusIndicator (FocusIndicator)
	设置焦点指示器

FocusIndicator	focusIndicator () const
	获取焦点指示器

void	setBorderRadius (double)
	设置边框框架角落的半径

double	borderRadius () const
	获取边框框架角落的半径

Protected 成员函数
virtual void	paintEvent (QPaintEvent *) override
	Paint event

virtual void	initializeGL () override
	No operation - reserved for some potential use in the future

virtual void	paintGL () override
	Paint the plot

virtual void	resizeGL (int width, int height) override
	No operation - reserved for some potential use in the future

Protected 成员函数继承自 QwtPlotAbstractGLCanvas
void	replot ()
	使绘制缓存失效并重绘画布

void	draw (QPainter *)
	Helper function for the derived plot canvas

Protected 成员函数继承自 QwtPlotAbstractCanvas
QWidget *	canvasWidget ()

const QWidget *	canvasWidget () const

virtual void	drawFocusIndicator (QPainter *)
	Draw the focus indication

virtual void	drawBorder (QPainter *)
	Draw the border of the canvas

virtual void	drawBackground (QPainter *)
	Helper function for the derived plot canvas

void	fillBackground (QPainter *)
	Helper function for the derived plot canvas

void	drawCanvas (QPainter *)
	Draw the plot to the canvas

void	drawStyled (QPainter *, bool)
	Helper function for the derived plot canvas

void	drawUnstyled (QPainter *)
	Helper function for the derived plot canvas

QPainterPath	canvasBorderPath (const QRect &rect) const

void	updateStyleSheetInfo ()
	Update the cached information about the current style sheet

属性
QFrame::Shadow	frameShadow

QFrame::Shape	frameShape

int	lineWidth

int	midLineWidth

int	frameWidth

QRect	frameRect

double	borderRadius

额外继承的成员函数
Public 类型继承自 QwtPlotAbstractGLCanvas
enum	PaintAttribute { BackingStore = 1 , ImmediatePaint = 8 }
	绘制属性更多...

Public 类型继承自 QwtPlotAbstractCanvas
enum	FocusIndicator { NoFocusIndicator , CanvasFocusIndicator , ItemFocusIndicator }
	焦点指示器更多...

详细描述

QwtPlot 的替代画布，派生自 QOpenGLWidget

构造及析构函数说明

◆ QwtPlotOpenGLCanvas() [1/2]

QwtPlotOpenGLCanvas::QwtPlotOpenGLCanvas ( QwtPlot * plot = nullptr )

explicit

构造函数

◆ QwtPlotOpenGLCanvas() [2/2]

QwtPlotOpenGLCanvas::QwtPlotOpenGLCanvas	(	const QSurfaceFormat &	format,
		QwtPlot *	plot = `nullptr`
	)

explicit

构造函数（带表面格式）

构造函数

◆ ~QwtPlotOpenGLCanvas()

QwtPlotOpenGLCanvas::~QwtPlotOpenGLCanvas ( )

virtual

析构函数

成员函数说明

◆ borderPath()

QPainterPath QwtPlotOpenGLCanvas::borderPath ( const QRect & rect ) const

获取边界路径

计算样式化或圆角边界的绘制路径

◆ event()

bool QwtPlotOpenGLCanvas::event ( QEvent * event )

overridevirtual

处理事件

Qt 事件处理器，处理 QEvent::PolishRequest 和 QEvent::StyleChange

◆ initializeGL()

void QwtPlotOpenGLCanvas::initializeGL ( )

overrideprotectedvirtual

No operation - reserved for some potential use in the future

◆ invalidateBackingStore()

void QwtPlotOpenGLCanvas::invalidateBackingStore ( )

overridevirtual

使后备存储失效

使内部后备存储失效

实现了 QwtPlotAbstractGLCanvas.

◆ paintEvent()

void QwtPlotOpenGLCanvas::paintEvent ( QPaintEvent * event )

overrideprotectedvirtual

Paint event

参数

event Paint event

参见: QwtPlot::drawCanvas()

◆ paintGL()

void QwtPlotOpenGLCanvas::paintGL ( )

overrideprotectedvirtual

Paint the plot

◆ replot

void QwtPlotOpenGLCanvas::replot ( )

slot

重绘画布

使绘制缓存失效并重绘画布

◆ resizeGL()

void QwtPlotOpenGLCanvas::resizeGL	(	int	width,
		int	height
	)

overrideprotectedvirtual

No operation - reserved for some potential use in the future

该类的文档由以下文件生成:

/home/runner/work/QWT/QWT/src/plot/qwt_plot_opengl_canvas.h
/home/runner/work/QWT/QWT/src/plot/qwt_plot_opengl_canvas.cpp

类

Public 槽

Public 成员函数

Protected 成员函数

属性

额外继承的成员函数

详细描述

构造及析构函数说明

◆ QwtPlotOpenGLCanvas() [1/2]

◆ QwtPlotOpenGLCanvas() [2/2]

◆ ~QwtPlotOpenGLCanvas()

成员函数说明

◆ borderPath()

◆ event()

◆ initializeGL()

◆ invalidateBackingStore()

◆ paintEvent()

◆ paintGL()

◆ replot

◆ resizeGL()