内容

• 特性
• 公共函数
• 保护函数
• 重实现保护函数
• 详细描述

Q3Frame Class

头：	#include <Q3Frame>
继承：	QFrame
继承者：	Q3DockWindow , Q3Grid , Q3HBox , Q3ScrollView ，和 Q3WidgetStack

• 所有成员列表，包括继承成员

特性

• contentsRect : const QRect
• margin : int

• 6 特性继承自 QFrame
• 58 特性继承自 QWidget
• 1 特性继承自 QObject

公共函数

	Q3Frame (QWidget * parent , const char * name = 0, Qt::WindowFlags f = 0)
	~Q3Frame ()
QRect	contentsRect () const
int	frameWidth () const
int	margin () const
void	setMargin (int)

• 14 公共函数继承自 QFrame
• 220 公共函数继承自 QWidget
• 29 公共函数继承自 QObject
• 12 公共函数继承自 QPaintDevice

保护函数

virtual void	drawContents (QPainter * painter )
virtual void	drawFrame (QPainter * p )
virtual void	frameChanged ()

重实现保护函数

virtual void	paintEvent (QPaintEvent * event )
virtual void	resizeEvent (QResizeEvent * event )

• 3 保护函数继承自 QFrame
• 37 保护函数继承自 QWidget
• 8 保护函数继承自 QObject
• 1 保护函数继承自 QPaintDevice

额外继承成员

• 19 公共槽继承自 QWidget
• 1 公共槽继承自 QObject
• 1 信号继承自 QWidget
• 1 信号继承自 QObject
• 4 static public members inherited from QWidget
• 7 静态公共成员继承自 QObject
• 1 保护槽继承自 QWidget

详细描述

特性文档编制

contentsRect : const QRect

This property holds the frame's contents rectangle (including the margins).

访问函数：

QRect

contentsRect () const

margin : int

This property holds the width of the margin.

The margin is the distance between the innermost pixel of the frame and the outermost pixel of contentsRect (). It is included in frameWidth ().

The margin is filled according to backgroundMode ().

默认值为 0。

访问函数：

int	margin () const
void	setMargin (int)

另请参阅 lineWidth () 和 frameWidth ().

成员函数文档编制

Q3Frame:: Q3Frame ( QWidget * parent , const char * name = 0, Qt::WindowFlags f = 0)

Creates a new frame with the given parent , object name , and with widget flags f .

Q3Frame:: ~Q3Frame ()

Destructs the frame.

[virtual protected] void Q3Frame:: drawContents ( QPainter * painter )

Virtual function that draws the contents of the frame on the given painter .

The QPainter is already open when you get it, and you must leave it open. Painter transformations are switched off on entry. If you transform the painter, remember to take the frame into account and reset transformation before returning.

This function is reimplemented by subclasses that draw something inside the frame. It should only draw inside contentsRect (). The default function does nothing.

另请参阅 contentsRect () 和 QPainter::setClipRect ().

[virtual protected] void Q3Frame:: drawFrame ( QPainter * p )

Draws the frame using the painter p and the current frame attributes and color group. The rectangle inside the frame is not affected.

This function is virtual, but in general you do not need to reimplement it. If you do, note that the QPainter is already open and must remain open.

另请参阅 frameRect (), contentsRect (), drawContents (), frameStyle ()，和 setPalette ().

[virtual protected] void Q3Frame:: frameChanged ()

Virtual function that is called when the frame style, line width or mid-line width changes.

This function can be reimplemented by subclasses that need to know when the frame attributes change.

int Q3Frame:: frameWidth () const

Returns the width of the frame (including the margin).

[virtual protected] void Q3Frame:: paintEvent ( QPaintEvent * event )

重实现自 QWidget::paintEvent ().

Paints the frame (or part of the frame) that's necessary, depending on the event .

[virtual protected] void Q3Frame:: resizeEvent ( QResizeEvent * event )

重实现自 QWidget::resizeEvent ().

This just calls frameChanged (); it does not make use of the event 本身。