QStyleOptionQ3ListView Class

The QStyleOptionQ3ListView class is used to describe the parameters for drawing a Q3ListView . 更多...

头：	#include <QStyleOptionQ3ListView>
继承：	QStyleOptionComplex

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公共类型

enum	StyleOptionType { Type }
enum	StyleOptionVersion { Version }

公共函数

	QStyleOptionQ3ListView ()
	QStyleOptionQ3ListView (const QStyleOptionQ3ListView & other )

2 公共函数继承自 QStyleOption

公共变量

int	itemMargin
QList<QStyleOptionQ3ListViewItem>	项
bool	rootIsDecorated
int	sortColumn
int	treeStepSize
QPalette::ColorRole	viewportBGRole
QPalette	viewportPalette

2 public variables inherited from QStyleOptionComplex
7 public variables inherited from QStyleOption

详细描述

The QStyleOptionQ3ListView class is used to describe the parameters for drawing a Q3ListView .

This class is used for drawing the compatibility Q3ListView . It is not recommended for new classes .

QStyleOptionQ3ListView contains all the information that QStyle 函数需要绘制 Q3ListView .

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 QStyleOptionComplex , Q3ListView ，和 QStyleOptionQ3ListViewItem .

成员类型文档编制

enum QStyleOptionQ3ListView:: 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
`QStyleOptionQ3ListView::Type`	`SO_Q3ListView`	提供样式选项的类型 ( SO_Q3ListView 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 QStyleOptionQ3ListView:: 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
`QStyleOptionQ3ListView::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

QStyleOptionQ3ListView:: QStyleOptionQ3ListView ()

创建 QStyleOptionQ3ListView , initializing the members variables to their default values.

QStyleOptionQ3ListView:: QStyleOptionQ3ListView (const QStyleOptionQ3ListView & other )

构造副本为 other 样式选项。

成员变量文档编制

int QStyleOptionQ3ListView:: itemMargin

This variable holds the margin for items in the list view.

默认值为 0。

另请参阅 Q3ListView::itemMargin ().

QList < QStyleOptionQ3ListViewItem > QStyleOptionQ3ListView:: 项

This variable holds a list of items in the Q3ListView.

This is a list of QStyleOptionQ3ListViewItem s. The first item can be used for most of the calculation that are needed for drawing a list view. Any additional items are the children of this first item, which may be used for additional information.

另请参阅 QStyleOptionQ3ListViewItem .