QStyleOptionHeader Class Reference
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QtGui

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The QStyleOptionHeader class is used to describe the parameters for drawing a header. 更多...

继承 QStyleOption .

类型

enum SectionPosition { Beginning, Middle, End, OnlyOneSection }
enum SelectedPosition { NotAdjacent, NextIsSelected, PreviousIsSelected, NextAndPreviousAreSelected }
enum SortIndicator { None, SortUp, SortDown }
enum StyleOptionType { Type }
enum StyleOptionVersion { Version }

方法

__init__ ( self )
__init__ ( self , QStyleOptionHeader other )

Members

QIcon icon
Qt.Alignment iconAlignment
Qt.Orientation orientation
SectionPosition position
int section
SelectedPosition selectedPosition
SortIndicator sortIndicator
QString text
Qt.Alignment textAlignment

详细描述

The QStyleOptionHeader class is used to describe the parameters for drawing a header.

QStyleOptionHeader contains all the information that QStyle functions need to draw the item views' header pane, header sort arrow, and header label.

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 函数。

For an example demonstrating how style options can be used, see the 样式范例。

类型文档编制

QStyleOptionHeader.SectionPosition

This enum lets you know where the section's position is in relation to the other sections.

常量	值	描述
`QStyleOptionHeader.Beginning`	`0`	At the beginining of the header
`QStyleOptionHeader.Middle`	`1`	In the middle of the header
`QStyleOptionHeader.End`	`2`	At the end of the header
`QStyleOptionHeader.OnlyOneSection`	`3`	Only one header section

另请参阅 position .

QStyleOptionHeader.SelectedPosition

This enum lets you know where the section's position is in relation to the selected section.

常量	值	描述
`QStyleOptionHeader.NotAdjacent`	`0`	Not adjacent to the selected section
`QStyleOptionHeader.NextIsSelected`	`1`	The next section is selected
`QStyleOptionHeader.PreviousIsSelected`	`2`	The previous section is selected
`QStyleOptionHeader.NextAndPreviousAreSelected`	`3`	Both the next and previous section are selected

另请参阅 selectedPosition .

QStyleOptionHeader.SortIndicator

Indicates which direction the sort indicator should be drawn

常量	值	描述
`QStyleOptionHeader.None`	`0`	No sort indicator is needed
`QStyleOptionHeader.SortUp`	`1`	Draw an up indicator
`QStyleOptionHeader.SortDown`	`2`	Draw a down indicator

另请参阅 sortIndicator .

QStyleOptionHeader.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
`QStyleOptionHeader.Type`	`SO_Header`	The type of style option provided ( SO_Header for this class).

The type is used internally by QStyleOption , its subclasses, and qstyleoption_cast () 到 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 .

QStyleOptionHeader.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
`QStyleOptionHeader.Version`	`1`	1

The version is used by QStyleOption subclasses to implement extensions without breaking compatibility. If you use qstyleoption_cast (), you normally do not need to check it.

另请参阅 StyleOptionType .

方法文档编制

QStyleOptionHeader.init ( self )

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

QStyleOptionHeader.init ( self , QStyleOptionHeader other )

构造副本为 other 样式选项。

Member Documentation

QIcon icon

This variable holds the icon of the header.

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

Qt.Alignment iconAlignment

This variable holds the alignment flags for the icon of the header.

默认值为 Qt.AlignLeft .

Qt.Orientation orientation

This variable holds the header's orientation (horizontal or vertical).

The default orientation is Qt.Horizontal

SectionPosition position

This variable holds the section's position in relation to the other sections.

默认值为 QStyleOptionHeader.Beginning .

int section

This variable holds which section of the header is being painted.

默认值为 0。

SelectedPosition selectedPosition

This variable holds the section's position in relation to the selected section.

默认值为 QStyleOptionHeader.NotAdjacent

SortIndicator sortIndicator

This variable holds the direction the sort indicator should be drawn.

默认值为 QStyleOptionHeader.None .

QString text

This variable holds the text of the header.

默认值为空字符串。

Qt.Alignment textAlignment

This variable holds the alignment flags for the text of the header.