QStyleHintReturn Class ReferenceThe QStyleHintReturn class provides style hints that return more than basic data types. More... #include <QStyleHintReturn> Inherited by: QStyleHintReturnMask and QStyleHintReturnVariant. Public Types
Public Functions
Public Variables
Related Non-Members
Detailed DescriptionThe QStyleHintReturn class provides style hints that return more than basic data types. QStyleHintReturn and its subclasses are used to pass information from a style back to the querying widget. This is most useful when the return value from QStyle::styleHint() does not provide enough detail; for example, when a mask is to be returned. Member Type Documentation
|
Constant | Value | Description |
---|---|---|
QStyleHintReturn::SH_Default | 0xf000 | QStyleHintReturn |
QStyleHintReturn::SH_Mask | ? | QStyle::SH_RubberBand_Mask QStyle::SH_FocusFrame_Mask |
QStyleHintReturn::SH_Variant | ? | QStyle::SH_TextControl_FocusIndicatorTextCharFormat |
This enum is used to hold information about the type of the style option, and is defined for each QStyleHintReturn subclass.
Constant | Value | Description |
---|---|---|
QStyleHintReturn::Type | SH_Default | The type of style option provided (SH_Default for this class). |
The type is used internally by QStyleHintReturn, 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 QStyleHintReturn subclass and your own styles.
See also StyleOptionVersion.
This enum is used to hold information about the version of the style option, and is defined for each QStyleHintReturn subclass.
Constant | Value | Description |
---|---|---|
QStyleHintReturn::Version | 1 | 1 |
The version is used by QStyleHintReturn subclasses to implement extensions without breaking compatibility. If you use qstyleoption_cast(), you normally do not need to check it.
See also StyleOptionType.
Constructs a QStyleHintReturn with version version and type type.
The version has no special meaning for QStyleHintReturn; it can be used by subclasses to distinguish between different version of the same hint type.
See also QStyleOption::version and QStyleOption::type.
This variable holds the type of the style hint container.
See also HintReturnType.
This variable holds the version of the style hint return container.
This value can be used by subclasses to implement extensions without breaking compatibility. If you use qstyleoption_cast<T>(), you normally do not need to check it.
Returns a T or 0 depending on the type and version of hint.
Example:
int MyStyle::styleHint(StyleHint stylehint, const QStyleOption *opt, const QWidget *widget, QStyleHintReturn* returnData) const; { if (stylehint == SH_RubberBand_Mask) { const QStyleHintReturnMask *maskReturn = qstyleoption_cast<const QStyleHintReturnMask *>(hint); if (maskReturn) { ... } } ... }
See also QStyleHintReturn::type and QStyleHintReturn::version.
This is an overloaded function.
Returns a T or 0 depending on the type of hint.
© 2008-2011 Nokia Corporation and/or its subsidiaries. Nokia, Qt and their respective logos are trademarks of Nokia Corporation in Finland and/or other countries worldwide.
All other trademarks are property of their respective owners. Privacy Policy
Licensees holding valid Qt Commercial licenses may use this document in accordance with the Qt Commercial License Agreement provided with the Software or, alternatively, in accordance with the terms contained in a written agreement between you and Nokia.
Alternatively, this document may be used under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation.