QStyleOptionViewItemV4 Class Reference
[QtGui module]

Detailed Description

The QStyleOptionViewItemV4 class is used to describe the parameters necessary for drawing a frame in Qt 4.4 or above.

QStyleOptionViewItemV4 inherits QStyleOptionViewItemV3.

An instance of the QStyleOptionViewItemV4 class has type SO_ViewItem and version 4. 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. The version is used by QStyleOption subclasses to implement extensions without breaking compatibility. If you use qstyleoption_cast(), you normally don't need to check it.

See QStyleOptionViewItemV3's detailed description for a discussion of how to handle "V3" classes.

See also QStyleOptionViewItem and QStyleOption.

Member Type Documentation

enum QStyleOptionViewItemV4::StyleOptionVersion

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

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

See also StyleOptionType.

enum QStyleOptionViewItemV4::ViewItemPosition

This enum is used to represent the placement of the item on a row. This can be used to draw items differently depending on their placement, for example by putting rounded edges at the beginning and end, and straight edges in between.

Member Function Documentation

QStyleOptionViewItemV4::QStyleOptionViewItemV4 ()

Constructs a QStyleOptionViewItemV4 object.

QStyleOptionViewItemV4::QStyleOptionViewItemV4 ( const QStyleOptionViewItemV4 & other )

Constructs a copy of other.

QStyleOptionViewItemV4::QStyleOptionViewItemV4 ( const QStyleOptionViewItem & other )

Constructs a QStyleOptionViewItemV4 copy of the other style option which can be either of the QStyleOptionViewItemV3 or QStyleOptionViewItem types.

See also version.

QStyleOptionViewItemV4 & QStyleOptionViewItemV4::operator= ( const QStyleOptionViewItem & other )

Assigns the other style option to this style option. The other style option can be either of the QStyleOptionViewItemV3 or QStyleOptionViewItem types.