QStyleOptionHeader Class

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

Header:	#include <QStyleOptionHeader>
qmake:	QT += widgets
Inherits:	QStyleOption

• List of all members, including inherited members

Public Types

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

Public Functions

	QStyleOptionHeader(const QStyleOptionHeader &other)
	QStyleOptionHeader()

Public Variables

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

Detailed Description

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 functions.

For an example demonstrating how style options can be used, see the Styles example.

See also QStyleOption.

Member Type Documentation

enum QStyleOptionHeader::SectionPosition

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

Constant	Value	Description
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

See also position.

enum QStyleOptionHeader::SelectedPosition

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

Constant	Value	Description
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

See also selectedPosition.

enum QStyleOptionHeader::SortIndicator

Indicates which direction the sort indicator should be drawn

Constant	Value	Description
QStyleOptionHeader::None	0	No sort indicator is needed
QStyleOptionHeader::SortUp	1	Draw an up indicator
QStyleOptionHeader::SortDown	2	Draw a down indicator

See also sortIndicator.

enum QStyleOptionHeader::StyleOptionType

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

Constant	Value	Description
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() 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.

See also StyleOptionVersion.

enum QStyleOptionHeader::StyleOptionVersion

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

Constant	Value	Description
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.

See also StyleOptionType.

Member Function Documentation

QStyleOptionHeader::QStyleOptionHeader(const QStyleOptionHeader &other)

Constructs a copy of the other style option.

QStyleOptionHeader::QStyleOptionHeader()

Constructs a QStyleOptionHeader, initializing the members variables to their default values.