QStyleOptionButton 类

QStyleOptionButton class is used to describe the parameters for drawing buttons. 更多...

头: #include <QStyleOptionButton>
qmake: QT += widgets
继承: QStyleOption

公共类型

enum ButtonFeature { None, Flat, HasMenu, DefaultButton, AutoDefaultButton, CommandLinkButton }
flags ButtonFeatures
enum StyleOptionType { Type }
enum StyleOptionVersion { Version }

公共函数

QStyleOptionButton ()
QStyleOptionButton (const QStyleOptionButton & other )

公共变量

ButtonFeatures features
QIcon icon
QSize iconSize
QString text

详细描述

QStyleOptionButton class is used to describe the parameters for drawing buttons.

QStyleOptionButton contains all the information that QStyle 函数需要绘制图形元素像 QPushButton , QCheckBox ,和 QRadioButton .

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 and QStyleOptionToolButton .

成员类型文档编制

enum QStyleOptionButton:: ButtonFeature
flags QStyleOptionButton:: ButtonFeatures

This enum describes the different types of features a push button can have.

常量 描述
QStyleOptionButton::None 0x00 Indicates a normal push button.
QStyleOptionButton::Flat 0x01 Indicates a flat push button.
QStyleOptionButton::HasMenu 0x02 Indicates that the button has a drop down menu.
QStyleOptionButton::DefaultButton 0x04 Indicates that the button is a default button.
QStyleOptionButton::AutoDefaultButton 0x08 Indicates that the button is an auto default button.
QStyleOptionButton::CommandLinkButton 0x10 Indicates that the button is a Windows Vista type command link.

The ButtonFeatures type is a typedef for QFlags <ButtonFeature>. It stores an OR combination of ButtonFeature values.

另请参阅 features .

enum QStyleOptionButton:: 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 描述
QStyleOptionButton::Type SO_Button 提供样式选项的类型 ( SO_Button 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 QStyleOptionButton:: 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 描述
QStyleOptionButton::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 (), you normally do not need to check it.

另请参阅 StyleOptionType .

成员函数文档编制

QStyleOptionButton:: QStyleOptionButton ()

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

QStyleOptionButton:: QStyleOptionButton (const QStyleOptionButton & other )

构造副本为 other 样式选项。

成员变量文档编制

ButtonFeatures QStyleOptionButton:: features

This variable holds a bitwise OR of the features that describe this button

另请参阅 ButtonFeature .

QIcon QStyleOptionButton:: icon

This variable holds the icon of the button

The default value is an empty icon, i.e. an icon with neither a pixmap nor a filename.

另请参阅 iconSize .

QSize QStyleOptionButton:: iconSize

This variable holds the size of the icon for the button

默认值为 QSize (-1, -1),即:无效尺寸。

QString QStyleOptionButton:: text

This variable holds the text of the button

默认值为空字符串。