内容

• 公共类型
• 公共函数
• 公共变量
• 详细描述

QStyleOptionGroupBox 类

The QStyleOptionGroupBox class describes the parameters for drawing a group box. 更多...

头：	#include <QStyleOptionGroupBox>
qmake:	QT += widgets
Since:	Qt 4.1
继承：	QStyleOptionComplex

• 所有成员列表，包括继承成员

公共类型

enum	StyleOptionType { Type }
enum	StyleOptionVersion { Version }

公共函数

	QStyleOptionGroupBox ()
	QStyleOptionGroupBox (const QStyleOptionGroupBox & other )

• 2 公共函数继承自 QStyleOption

公共变量

QStyleOptionFrame::FrameFeatures	features
int	lineWidth
int	midLineWidth
QString	text
Qt::Alignment	textAlignment
QColor	textColor

• 2 public variables inherited from QStyleOptionComplex
• 8 public variables inherited from QStyleOption

详细描述

The QStyleOptionGroupBox class describes the parameters for drawing a group box.

QStyleOptionButton contains all the information that QStyle functions need the various graphical elements of a group box.

它保持 lineWidth 和 midLineWidth for drawing the panel, the group box's title and the title's alignment and color .

For performance reasons, the access to the member variables is direct (i.e., using the . or -> operator). This low-level feel makes the structures straightforward to use and emphasizes that these are simply parameters used by the style functions.

对于可以如何使用样式选项的演示范例，见 样式 范例。

另请参阅 QStyleOption , QStyleOptionComplex ，和 QGroupBox .

成员类型文档编制

enum QStyleOptionGroupBox:: StyleOptionType

This enum is used to hold information about the type of the style option, and is defined for each QStyleOption 子类。

常量	值	描述
QStyleOptionGroupBox::Type	SO_GroupBox	提供样式选项的类型 ( SO_GroupBox 对于此类)。

类型内部使用通过 QStyleOption ，其子类，和 qstyleoption_cast () to determine the type of style option. In general you do not need to worry about this unless you want to create your own QStyleOption subclass and your own styles.

另请参阅 StyleOptionVersion .

enum QStyleOptionGroupBox:: StyleOptionVersion

This enum is used to hold information about the version of the style option, and is defined for each QStyleOption 子类。

常量	值	描述
QStyleOptionGroupBox::Version	1	1

版本的使用通过 QStyleOption 子类以实现扩展在不破坏兼容性的情况下。若使用 qstyleoption_cast ()，通常不需要校验它。

另请参阅 StyleOptionType .

成员函数文档编制

QStyleOptionGroupBox:: QStyleOptionGroupBox ()

构造 QStyleOptionGroupBox , initializing the members variables to their default values.

QStyleOptionGroupBox:: QStyleOptionGroupBox (const QStyleOptionGroupBox & other )

构造副本为 other 样式选项。

成员变量文档编制

QStyleOptionFrame::FrameFeatures QStyleOptionGroupBox:: features

This variable holds the features of the group box frame

The frame is flat by default.

另请参阅 QStyleOptionFrame::FrameFeature .

int QStyleOptionGroupBox:: lineWidth

This variable holds the line width for drawing the panel

The value of this variable is, currently, always 1.

另请参阅 QFrame::lineWidth .

int QStyleOptionGroupBox:: midLineWidth

This variable holds the mid-line width for drawing the panel

The mid-line width is usually used when drawing sunken or raised group box frames. The value of this variable is, currently, always 0.

另请参阅 QFrame::midLineWidth .

QString QStyleOptionGroupBox:: text

This variable holds the text of the group box

默认值为空字符串。

另请参阅 QGroupBox::title .

Qt::Alignment QStyleOptionGroupBox:: textAlignment

This variable holds the alignment of the group box title

默认值为 Qt::AlignLeft .

另请参阅 QGroupBox::alignment .

QColor QStyleOptionGroupBox:: textColor

This variable holds the color of the group box title

The default value is an invalid color with the RGB value (0, 0, 0). An invalid color is a color that is not properly set up for the underlying window system.