QwtCachePanner类 参考

QwtCachePanner 提供控件的拖动平移功能 更多...

#include <qwt_cache_panner.h>

类 QwtCachePanner 继承关系图:

类
class	PrivateData

信号
void	panned (int dx, int dy)
	平移完成时发出的信号
void	moved (int dx, int dy)
	控件移动但平移未完成时发出的信号

Public 成员函数
	QwtCachePanner (QWidget *parent)
	创建一个启用左键鼠标按钮的平移器
virtual	~QwtCachePanner ()
	析构函数
void	setEnabled (bool)
	启用/禁用平移器
bool	isEnabled () const
	返回平移器是否启用
void	setMouseButton (Qt::MouseButton, Qt::KeyboardModifiers=Qt::NoModifier)
	更改用于平移的鼠标按钮和修饰键
void	getMouseButton (Qt::MouseButton &button, Qt::KeyboardModifiers &) const
	获取用于平移的鼠标按钮和修饰键
void	setAbortKey (int key, Qt::KeyboardModifiers=Qt::NoModifier)
	更改中止键
void	getAbortKey (int &key, Qt::KeyboardModifiers &) const
	获取中止键和修饰键
void	setCursor (const QCursor &)
	更改平移时激活的光标
const QCursor	cursor () const
	返回平移时激活的光标
void	setOrientations (Qt::Orientations)
	设置启用平移的方向
Qt::Orientations	orientations () const
	返回启用平移的方向
bool	isOrientationEnabled (Qt::Orientation) const
	检查某个方向是否启用
virtual bool	eventFilter (QObject *, QEvent *) override
	事件过滤器

Protected 成员函数
virtual void	widgetMousePressEvent (QMouseEvent *)
	Handle a mouse press event for the observed widget.
virtual void	widgetMouseReleaseEvent (QMouseEvent *)
	Handle a mouse release event for the observed widget.
virtual void	widgetMouseMoveEvent (QMouseEvent *)
	Handle a mouse move event for the observed widget.
virtual void	widgetKeyPressEvent (QKeyEvent *)
	Handle a key press event for the observed widget.
virtual void	widgetKeyReleaseEvent (QKeyEvent *)
	Handle a key release event for the observed widget.
virtual void	paintEvent (QPaintEvent *) override
	绘制事件
virtual QBitmap	contentsMask () const
	计算平移控件内容的遮罩
virtual QPixmap	grab () const
	将控件捕获到 pixmap 中

详细描述

QwtCachePanner 提供控件的拖动平移功能

构造及析构函数说明

QwtCachePanner()

QwtCachePanner::QwtCachePanner ( QWidget *  parent )

explicit

创建一个启用左键鼠标按钮的平移器

~QwtCachePanner()

QwtCachePanner::~QwtCachePanner ( )

virtual

析构函数

成员函数说明

contentsMask()

QBitmap QwtCachePanner::contentsMask ( ) const

protectedvirtual

计算平移控件内容的遮罩

被 QwtPlotCachePanner 重载.

cursor()

const QCursor QwtCachePanner::cursor

(

)

const

返回平移时激活的光标

eventFilter()

bool QwtCachePanner::eventFilter ( QObject *  object, QEvent *  event  )

overridevirtual

事件过滤器

getAbortKey()

void QwtCachePanner::getAbortKey	(	int &	key,
		Qt::KeyboardModifiers &	modifiers
	)		const

获取中止键和修饰键

getMouseButton()

void QwtCachePanner::getMouseButton	(	Qt::MouseButton &	button,
		Qt::KeyboardModifiers &	modifiers
	)		const

获取用于平移的鼠标按钮和修饰键

grab()

QPixmap QwtCachePanner::grab ( ) const

protectedvirtual

将控件捕获到 pixmap 中

被 QwtPlotCachePanner 重载.

isEnabled()

bool QwtCachePanner::isEnabled

(

)

const

返回平移器是否启用

isOrientationEnabled()

bool QwtCachePanner::isOrientationEnabled

(

Qt::Orientation

o

)

const

检查某个方向是否启用

moved

void QwtCachePanner::moved ( int  dx, int  dy  )

signal

控件移动但平移未完成时发出的信号

orientations()

Qt::Orientations QwtCachePanner::orientations

(

)

const

返回启用平移的方向

paintEvent()

void QwtCachePanner::paintEvent ( QPaintEvent *  event )

overrideprotectedvirtual

绘制事件

panned

void QwtCachePanner::panned ( int  dx, int  dy  )

signal

平移完成时发出的信号

setAbortKey()

void QwtCachePanner::setAbortKey	(	int	key,
		Qt::KeyboardModifiers	modifiers = Qt::NoModifier
	)

更改中止键

setCursor()

void QwtCachePanner::setCursor

(

const QCursor &

cursor

)

更改平移时激活的光标

setEnabled()

void QwtCachePanner::setEnabled

(

bool

on

)

启用/禁用平移器

setMouseButton()

void QwtCachePanner::setMouseButton	(	Qt::MouseButton	button,
		Qt::KeyboardModifiers	modifiers = Qt::NoModifier
	)

更改用于平移的鼠标按钮和修饰键

setOrientations()

void QwtCachePanner::setOrientations

(

Qt::Orientations

o

)

设置启用平移的方向

widgetKeyPressEvent()

void QwtCachePanner::widgetKeyPressEvent ( QKeyEvent *  keyEvent )

protectedvirtual

Handle a key press event for the observed widget.

参数

keyEvent

Key event

参见

eventFilter(), widgetKeyReleaseEvent()

widgetKeyReleaseEvent()

void QwtCachePanner::widgetKeyReleaseEvent ( QKeyEvent *  keyEvent )

protectedvirtual

Handle a key release event for the observed widget.

参数

keyEvent

Key event

参见

eventFilter(), widgetKeyReleaseEvent()

widgetMouseMoveEvent()

void QwtCachePanner::widgetMouseMoveEvent ( QMouseEvent *  mouseEvent )

protectedvirtual

Handle a mouse move event for the observed widget.

参数

mouseEvent

Mouse event

参见

eventFilter(), widgetMousePressEvent(), widgetMouseReleaseEvent()

widgetMousePressEvent()

void QwtCachePanner::widgetMousePressEvent ( QMouseEvent *  mouseEvent )

protectedvirtual

Handle a mouse press event for the observed widget.

参数

mouseEvent

Mouse event

参见

eventFilter(), widgetMouseReleaseEvent(), widgetMouseMoveEvent(),

被 QwtPolarCachePanner 重载.

widgetMouseReleaseEvent()

void QwtCachePanner::widgetMouseReleaseEvent ( QMouseEvent *  mouseEvent )

protectedvirtual

Handle a mouse release event for the observed widget.

参数

mouseEvent

Mouse event

参见

eventFilter(), widgetMousePressEvent(), widgetMouseMoveEvent(),

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该类的文档由以下文件生成:

• /home/runner/work/QWT/QWT/src/plot/qwt_cache_panner.h
• /home/runner/work/QWT/QWT/src/plot/qwt_cache_panner.cpp