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QStyleOptionViewItemV4 Class ReferenceThe QStyleOptionViewItemV4 class is used to describe the parameters necessary for drawing a frame in Qt 4.4 or above. More... #include <QStyleOptionViewItemV4>Inherits: QStyleOptionViewItemV3. This class was introduced in Qt 4.4. Public Types
Public Functions
Public Variables
Detailed DescriptionThe 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 do not 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
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| Constant | Value | Description |
|---|---|---|
| QStyleOptionViewItemV4::Version | 4 | 4 |
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.
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.
| Constant | Value | Description |
|---|---|---|
| QStyleOptionViewItemV4::Invalid | 0 | The ViewItemPosition is unknown and should be disregarded. |
| QStyleOptionViewItemV4::Beginning | 1 | The item appears at the beginning of the row. |
| QStyleOptionViewItemV4::Middle | 2 | The item appears in the middle of the row. |
| QStyleOptionViewItemV4::End | 3 | The item appears at the end of the row. |
| QStyleOptionViewItemV4::OnlyOne | 4 | The item is the only one on the row, and is therefore both at the beginning and the end. |
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.
Member Variable Documentation
QBrush QStyleOptionViewItemV4::backgroundBrush
The QBrush that should be used to paint the view items background.
Qt::CheckState QStyleOptionViewItemV4::checkState
If this view item is checkable, i.e., ViewItemFeature::HasCheckIndicator is true, checkState is true if the item is checked; otherwise, it is false.
QIcon QStyleOptionViewItemV4::icon
The icon (if any) to be drawn in the view item.
QModelIndex QStyleOptionViewItemV4::index
The model index that is to be drawn.
QString QStyleOptionViewItemV4::text
The text (if any) to be drawn in the view item.
ViewItemPosition QStyleOptionViewItemV4::viewItemPosition
Gives the position of this view item relative to other items. See the ViewItemPosition enum for the details.