The QDecorationDefault class is a base class providing default window decorations. 更多...
| 头： | #include <QDecorationDefault> |
| Since: | Qt 4.4 |
| 继承： | QDecoration |
| QDecorationDefault () | |
| virtual | ~QDecorationDefault () |
| virtual bool | paint (QPainter * painter , const QWidget * widget , int decorationRegion = All, DecorationState state = Normal) |
| virtual QRegion | region (const QWidget * widget , const QRect & rect , int decorationRegion = All) |
| virtual void | paintButton (QPainter * painter , const QWidget * widget , int buttonRegion , DecorationState state , const QPalette & palette ) |
| virtual QPixmap | pixmapFor (const QWidget * widget , int decorationRegion , int & xoff , int & yoff ) |
| virtual int | titleBarHeight (const QWidget * widget ) |
| virtual const char ** | xpmForRegion (int region ) |
The QDecorationDefault class is a base class providing default window decorations.
See the documentation for class QDecoration for a detailed description. This subclass of QDecoration provides standard icons for the decoration regions.
Note that this class is non-portable and only available in Qt for Embedded Linux .
默认构造函数。
[虚拟]
QDecorationDefault::
~QDecorationDefault
()
The constructor deletes the static pixmaps.
[虚拟]
bool
QDecorationDefault::
paint
(
QPainter
*
painter
, const
QWidget
*
widget
,
int
decorationRegion
= All,
DecorationState
state
= Normal)
重实现自 QDecoration::paint ().
Paints the border and title decoration for the top-level widget 使用 painter provided and the decoration state . The value of decorationRegion is a combination of the bitmask values of enum DecorationRegion .
Note that Qt for Embedded Linux expects this function to return true if any of the widget's decorations are repainted; otherwise it returns false.
[virtual protected]
void
QDecorationDefault::
paintButton
(
QPainter
*
painter
, const
QWidget
*
widget
,
int
buttonRegion
,
DecorationState
state
, const
QPalette
&
palette
)
Paints a region of the top-level widget . The region is painted in the specified decoration state 使用 painter and palette provided. The region to be painted is specified by buttonRegion , which is a combination of the bitmask values of DecorationRegion . If the value of buttonRegion 是某一 帮助 , Menu , Close , Minimize , Maximize ，和 Normalize , the button pixmap for that region is painted.
另请参阅 pixmapFor ().
[virtual protected]
QPixmap
QDecorationDefault::
pixmapFor
(const
QWidget
*
widget
,
int
decorationRegion
,
int
&
xoff
,
int
&
yoff
)
返回指针指向 QPixmap for the widget specified by widget and decorationRegion . The returned QPixmap is constructed from the default X pixmap obtained from xpmForRegion ().
xoff and yoff specify the offset for the pixmap.
值 decorationRegion must be one of a subset of the values of enum DecorationRegion . The supported values are 帮助 , Menu , Close , Minimize , Maximize ，和 Normalize . Other values of decorationRegion return 0.
另请参阅 QDecoration::DecorationRegion .
[虚拟]
QRegion
QDecorationDefault::
region
(const
QWidget
*
widget
, const
QRect
&
rect
,
int
decorationRegion
= All)
重实现自 QDecoration::region ().
Returns the region specified by decorationRegion for the top-level widget . rect specifies the rectangle the decoration wraps. The value of decorationRegion is a combination of the bitmask values of enum DecorationRegion .
[virtual protected]
int
QDecorationDefault::
titleBarHeight
(const
QWidget
*
widget
)
Returns the title bar height in pixels for the given widget . It is the greater of 20, or the sum of the application font's line spacing value plus a border width fudge factor.
[virtual protected]
const
char
** QDecorationDefault::
xpmForRegion
(
int
region
)
Returns a pointer to the X pixmap for the icon specified by region . An X pixmap is an ASCII-text-based image. The value of region must be one of a subset of the values of enum DecorationRegion . The supported values are 帮助 , Menu , Close , Minimize , Maximize ，和 Normalize . Other values of region cause zero to be returned.