QAbstractAxis 类

QAbstractAxis 类是用于专用轴类的基类。更多...

头：	#include <QAbstractAxis>
CMake:	find_package(Qt6 REQUIRED COMPONENTS Graphs) target_link_libraries(mytarget PRIVATE Qt6::Graphs)
qmake:	QT += graphs
实例化：	AbstractAxis
继承：	QObject
继承者：	QBarCategoryAxis and QValueAxis
状态：	技术预览

所有成员列表，包括继承成员
QAbstractAxis is part of Qt Graphs C++ Classes for 2D .

公共类型

enum	AxisType { AxisTypeNoAxis, AxisTypeValue, AxisTypeBarCategory }
flags	AxisTypes

特性

alignment : const Qt::Alignment
gridVisible : bool
labelsAngle : qreal
labelsVisible : bool
lineVisible : bool
minorGridVisible : bool

orientation : const Qt::Orientation
titleColor : QColor
titleFont : QFont
titleText : QString
titleVisible : bool
visible : bool

公共函数

virtual	~QAbstractAxis ()
Qt::Alignment	alignment () const
void	hide ()
bool	isGridLineVisible () const
bool	isLineVisible () const
bool	isMinorGridLineVisible () const
bool	isTitleVisible () const
bool	isVisible () const
qreal	labelsAngle () const
bool	labelsVisible () const
Qt::Orientation	orientation () const
void	setGridLineVisible (bool visible = true)
void	setLabelsAngle (qreal angle )
void	setLabelsVisible (bool visible = true)
void	setLineVisible (bool visible = true)
void	setMax (const QVariant & max )
void	setMin (const QVariant & min )
void	setMinorGridLineVisible (bool visible = true)
void	setRange (const QVariant & min , const QVariant & max )
void	setTitleColor (const QColor & color )
void	setTitleFont (const QFont & font )
void	setTitleText (const QString & title )
void	setTitleVisible (bool visible = true)
void	setVisible (bool visible = true)
void	show ()
QColor	titleColor () const
QFont	titleFont () const
QString	titleText () const
virtual QAbstractAxis::AxisType	type () const = 0

信号

void	gridVisibleChanged (bool visible )
void	labelsAngleChanged (qreal angle )
void	labelsVisibleChanged (bool visible )
void	lineVisibleChanged (bool visible )
void	minorGridVisibleChanged (bool visible )
void	titleColorChanged (const QColor & color )
void	titleFontChanged (const QFont & font )
void	titleTextChanged (const QString & text )
void	titleVisibleChanged (bool visible )
void	update ()
void	visibleChanged (bool visible )

详细描述

Each series can be bound to only one horizontal and vertical axis.

The properties and visibility of various axis elements, such as axis line, title, labels, and grid lines, can be individually controlled.

成员类型文档编制

enum QAbstractAxis:: AxisType
flags QAbstractAxis:: AxisTypes

此枚举类型指定轴对象的类型。

常量	值
`QAbstractAxis::AxisTypeNoAxis`	`0x0`
`QAbstractAxis::AxisTypeValue`	`0x1`
`QAbstractAxis::AxisTypeBarCategory`	`0x2`

AxisTypes 类型是 typedef 对于 QFlags <AxisType>。它存储 AxisType 值的 OR 组合。

特性文档编制

`[read-only]` alignment : const Qt::Alignment

此特性保持轴的对齐方式。

可以是 Qt::AlignLeft , Qt::AlignRight , Qt::AlignBottom ，或 Qt::AlignTop .

访问函数：

Qt::Alignment

alignment () const

gridVisible : bool

This property holds the visibility of the grid lines. By default, the value is true .

访问函数：

bool	isGridLineVisible () const
void	setGridLineVisible (bool visible = true)

通知程序信号：

void	gridVisibleChanged (bool visible )

labelsAngle : qreal

此特性保持轴标签的角度，以度为单位。

访问函数：

qreal	labelsAngle () const
void	setLabelsAngle (qreal angle )

通知程序信号：

void	labelsAngleChanged (qreal angle )

labelsVisible : bool

This property holds whether axis labels are visible. By default, the value is true .

访问函数：

bool	labelsVisible () const
void	setLabelsVisible (bool visible = true)

通知程序信号：

void	labelsVisibleChanged (bool visible )

lineVisible : bool

This property holds the visibility of the axis line. By default, the value is true .

访问函数：

bool	isLineVisible () const
void	setLineVisible (bool visible = true)

通知程序信号：

void	lineVisibleChanged (bool visible )

minorGridVisible : bool

This property holds the visibility of the minor grid lines.

Applies only to axes that support minor grid lines. By default, the value is true .

访问函数：

bool	isMinorGridLineVisible () const
void	setMinorGridLineVisible (bool visible = true)

通知程序信号：

void	minorGridVisibleChanged (bool visible )

`[read-only]` orientation : const Qt::Orientation

此特性保持轴的取向。

Fixed to either Qt::Horizontal or Qt::Vertical when the axis is added to a graph.

访问函数：

Qt::Orientation

orientation () const

titleColor : QColor

This property holds the color used to draw the title text.

访问函数：

QColor	titleColor () const
void	setTitleColor (const QColor & color )

通知程序信号：

void	titleColorChanged (const QColor & color )

titleFont : QFont

This property holds the font of the title of the axis.

访问函数：

QFont	titleFont () const
void	setTitleFont (const QFont & font )

通知程序信号：

void	titleFontChanged (const QFont & font )

titleText : QString

此特性保持轴的标题。

默认为空。轴标题支持 HTML 格式。

访问函数：

QString	titleText () const
void	setTitleText (const QString & title )

通知程序信号：

void	titleTextChanged (const QString & text )

titleVisible : bool

This property holds the visibility of the axis title.

By default, the value is true .

访问函数：

bool	isTitleVisible () const
void	setTitleVisible (bool visible = true)

通知程序信号：

void	titleVisibleChanged (bool visible )

visible : bool

This property holds the visibility of the axis. By default, the value is true .

访问函数：

bool	isVisible () const
void	setVisible (bool visible = true)

通知程序信号：

void	visibleChanged (bool visible )

成员函数文档编制

`[virtual noexcept]` QAbstractAxis:: ~QAbstractAxis ()

Destructs the axis object. When the axis is added to a graph, the graph object takes ownership.

`[signal]` void QAbstractAxis:: gridVisibleChanged ( bool visible )

This signal is emitted when the visibility of the grid lines of the axis changes to visible .

注意： 通知程序信号对于特性 gridVisible .

void QAbstractAxis:: hide ()

Makes the axis, labels, and grid lines invisible.

`[signal]` void QAbstractAxis:: labelsAngleChanged ( qreal angle )

This signal is emitted when the angle of the axis labels changes to angle .

注意： 通知程序信号对于特性 labelsAngle .

`[signal]` void QAbstractAxis:: labelsVisibleChanged ( bool visible )

This signal is emitted when the visibility of the labels of the axis changes to visible .

注意： 通知程序信号对于特性 labelsVisible .

`[signal]` void QAbstractAxis:: lineVisibleChanged ( bool visible )

This signal is emitted when the visibility of the axis line changes to visible .

注意： 通知程序信号对于特性 lineVisible .

`[signal]` void QAbstractAxis:: minorGridVisibleChanged ( bool visible )

This signal is emitted when the visibility of the minor grid lines of the axis changes to visible .

注意： 通知程序信号对于特性 minorGridVisible .

Qt::Orientation QAbstractAxis:: orientation () const

Returns the orientation of the axis (vertical or horizontal).

注意： Getter function for property orientation.

void QAbstractAxis:: setLineVisible ( bool visible = true)

Determines whether the axis line and tick marks are visible .

注意： setter 函数对于特性 lineVisible .

另请参阅 isLineVisible ().

void QAbstractAxis:: setMax (const QVariant & max )

Sets the maximum value shown on the axis. Depending on the actual axis type, the max parameter is converted to the appropriate type of value. If the conversion is impossible, the function call does nothing.

void QAbstractAxis:: setMin (const QVariant & min )

Sets the minimum value shown on the axis. Depending on the actual axis type, the min parameter is converted to the appropriate type of value. If the conversion is impossible, the function call does nothing.

void QAbstractAxis:: setRange (const QVariant & min , const QVariant & max )

Sets the range shown on the axis. Depending on the actual axis type, the min and max parameters are converted to appropriate types of values. If the conversion is impossible, the function call does nothing.

void QAbstractAxis:: setTitleColor (const QColor & color )

Sets the color used to draw titles to color .

注意： setter 函数对于特性 titleColor .

另请参阅 titleColor ().

void QAbstractAxis:: setTitleFont (const QFont & font )

Sets the font used to draw titles to font .

注意： setter 函数对于特性 titleFont .

另请参阅 titleFont ().

void QAbstractAxis:: setVisible ( bool visible = true)

Sets the visibility of the axis, labels, and grid lines to visible .

注意： setter 函数对于特性 visible .

另请参阅 isVisible ().

void QAbstractAxis:: show ()

Makes the axis, labels, and grid lines visible.

QColor QAbstractAxis:: titleColor () const

Returns the color used to draw titles.

注意： Getter function for property titleColor.

另请参阅 setTitleColor ().

`[signal]` void QAbstractAxis:: titleColorChanged (const QColor & color )

This signal is emitted when the color used to draw the axis title changes to color .

注意： 通知程序信号对于特性 titleColor .

QFont QAbstractAxis:: titleFont () const

Returns the font used to draw titles.

注意： Getter function for property titleFont.

另请参阅 setTitleFont ().

`[signal]` void QAbstractAxis:: titleFontChanged (const QFont & font )

This signal is emitted when the font of the axis title changes to font .

注意： 通知程序信号对于特性 titleFont .

`[signal]` void QAbstractAxis:: titleTextChanged (const QString & text )

This signal is emitted when the text of the axis title changes to text .

注意： 通知程序信号对于特性 titleText .

`[signal]` void QAbstractAxis:: titleVisibleChanged ( bool visible )

This signal is emitted when the visibility of the title text of the axis changes to visible .

注意： 通知程序信号对于特性 titleVisible .

`[pure virtual]` QAbstractAxis::AxisType QAbstractAxis:: type () const

返回轴的类型。

`[signal]` void QAbstractAxis:: update ()

This signal is emitted when the axis needs to be updated.

`[signal]` void QAbstractAxis:: visibleChanged ( bool visible )

This signal is emitted when the visibility of the axis changes to visible .

注意： 通知程序信号对于特性 visible .

QAbstractAxis 类

公共类型

特性

公共函数

信号

详细描述

成员类型文档编制

enum QAbstractAxis:: AxisType flags QAbstractAxis:: AxisTypes

特性文档编制

[read-only] alignment : const Qt::Alignment

gridVisible : bool

labelsAngle : qreal

labelsVisible : bool

lineVisible : bool

minorGridVisible : bool

[read-only] orientation : const Qt::Orientation

titleColor : QColor

titleFont : QFont

titleText : QString

titleVisible : bool

visible : bool

成员函数文档编制

[virtual noexcept] QAbstractAxis:: ~QAbstractAxis ()

[signal] void QAbstractAxis:: gridVisibleChanged ( bool visible )

void QAbstractAxis:: hide ()

[signal] void QAbstractAxis:: labelsAngleChanged ( qreal angle )

[signal] void QAbstractAxis:: labelsVisibleChanged ( bool visible )

[signal] void QAbstractAxis:: lineVisibleChanged ( bool visible )

[signal] void QAbstractAxis:: minorGridVisibleChanged ( bool visible )

Qt::Orientation QAbstractAxis:: orientation () const

void QAbstractAxis:: setLineVisible ( bool visible = true)

void QAbstractAxis:: setMax (const QVariant & max )

void QAbstractAxis:: setMin (const QVariant & min )

void QAbstractAxis:: setRange (const QVariant & min , const QVariant & max )

void QAbstractAxis:: setTitleColor (const QColor & color )

void QAbstractAxis:: setTitleFont (const QFont & font )

void QAbstractAxis:: setVisible ( bool visible = true)

void QAbstractAxis:: show ()

QColor QAbstractAxis:: titleColor () const

[signal] void QAbstractAxis:: titleColorChanged (const QColor & color )

QFont QAbstractAxis:: titleFont () const

[signal] void QAbstractAxis:: titleFontChanged (const QFont & font )

[signal] void QAbstractAxis:: titleTextChanged (const QString & text )

[signal] void QAbstractAxis:: titleVisibleChanged ( bool visible )

[pure virtual] QAbstractAxis::AxisType QAbstractAxis:: type () const

[signal] void QAbstractAxis:: update ()

[signal] void QAbstractAxis:: visibleChanged ( bool visible )

内容

enum QAbstractAxis:: AxisType
flags QAbstractAxis:: AxisTypes

`[read-only]` alignment : const Qt::Alignment

`[read-only]` orientation : const Qt::Orientation

`[virtual noexcept]` QAbstractAxis:: ~QAbstractAxis ()

`[signal]` void QAbstractAxis:: gridVisibleChanged ( bool visible )

`[signal]` void QAbstractAxis:: labelsAngleChanged ( qreal angle )

`[signal]` void QAbstractAxis:: labelsVisibleChanged ( bool visible )

`[signal]` void QAbstractAxis:: lineVisibleChanged ( bool visible )

`[signal]` void QAbstractAxis:: minorGridVisibleChanged ( bool visible )

`[signal]` void QAbstractAxis:: titleColorChanged (const QColor & color )

`[signal]` void QAbstractAxis:: titleFontChanged (const QFont & font )

`[signal]` void QAbstractAxis:: titleTextChanged (const QString & text )

`[signal]` void QAbstractAxis:: titleVisibleChanged ( bool visible )

`[pure virtual]` QAbstractAxis::AxisType QAbstractAxis:: type () const

`[signal]` void QAbstractAxis:: update ()

`[signal]` void QAbstractAxis:: visibleChanged ( bool visible )