QStyleOptionButton class is used to describe the parameters for drawing buttons. 更多...
头: | #include <QStyleOptionButton> |
qmake: | QT += widgets |
继承: | QStyleOption |
enum | ButtonFeature { None, Flat, HasMenu, DefaultButton, AutoDefaultButton, CommandLinkButton } |
flags | ButtonFeatures |
enum | StyleOptionType { Type } |
enum | StyleOptionVersion { Version } |
QStyleOptionButton () | |
QStyleOptionButton (const QStyleOptionButton & other ) |
ButtonFeatures | features |
QIcon | icon |
QSize | iconSize |
QString | text |
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 .
This enum describes the different types of features a push button can have.
常量 | 值 | 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 .
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 |
---|---|---|
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 .
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 |
---|---|---|
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 .
构造 QStyleOptionButton , initializing the members variables to their default values.
构造副本为 other 样式选项。
This variable holds a bitwise OR of the features that describe this button
另请参阅 ButtonFeature .
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 .
This variable holds the size of the icon for the button
默认值为 QSize (-1, -1),即:无效尺寸。
This variable holds the text of the button
默认值为空字符串。