Qt 4.8
qscrollbar.h
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41 
42 #ifndef QSCROLLBAR_H
43 #define QSCROLLBAR_H
44 
45 #include <QtGui/qwidget.h>
46 #include <QtGui/qabstractslider.h>
47 
49 
51 
52 QT_MODULE(Gui)
53 
54 #ifndef QT_NO_SCROLLBAR
55 
56 class QScrollBarPrivate;
57 class QStyleOptionSlider;
58 
60 {
61  Q_OBJECT
62 public:
63  explicit QScrollBar(QWidget *parent=0);
64  explicit QScrollBar(Qt::Orientation, QWidget *parent=0);
65  ~QScrollBar();
66 
67  QSize sizeHint() const;
68  bool event(QEvent *event);
69 
70 protected:
71  void paintEvent(QPaintEvent *);
75  void hideEvent(QHideEvent*);
76  void sliderChange(SliderChange change);
77 #ifndef QT_NO_CONTEXTMENU
79 #endif
80  void initStyleOption(QStyleOptionSlider *option) const;
81 
82 public:
83 #ifdef QT3_SUPPORT
84  QT3_SUPPORT_CONSTRUCTOR QScrollBar(QWidget *parent, const char* name);
85  QT3_SUPPORT_CONSTRUCTOR QScrollBar(Qt::Orientation, QWidget *parent, const char* name);
86  QT3_SUPPORT_CONSTRUCTOR QScrollBar(int minValue, int maxValue, int lineStep, int pageStep,
87  int value, Qt::Orientation, QWidget *parent=0, const char* name = 0);
88  inline QT3_SUPPORT bool draggingSlider() { return isSliderDown(); }
89 #endif
90 
91 private:
92  friend Q_GUI_EXPORT QStyleOptionSlider qt_qscrollbarStyleOption(QScrollBar *scrollBar);
93 
94  Q_DISABLE_COPY(QScrollBar)
95  Q_DECLARE_PRIVATE(QScrollBar)
96 };
97 
98 #endif // QT_NO_SCROLLBAR
99 
101 
103 
104 #endif // QSCROLLBAR_H
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
EventRef event
virtual void sliderChange(SliderChange change)
Reimplement this virtual function to track slider changes such as SliderRangeChange ...
#define QT_MODULE(x)
Definition: qglobal.h:2783
Q_GUI_EXPORT QStyleOptionSlider qt_qscrollbarStyleOption(QScrollBar *scrollbar)
Returns the style option for scroll bar.
Definition: qscrollbar.cpp:766
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
bool event(QEvent *e)
Reimplemented Function
The QContextMenuEvent class contains parameters that describe a context menu event.
Definition: qevent.h:396
virtual void mouseReleaseEvent(QMouseEvent *)
This event handler, for event event, can be reimplemented in a subclass to receive mouse release even...
Definition: qwidget.cpp:9286
#define Q_GUI_EXPORT
Definition: qglobal.h:1450
virtual void mousePressEvent(QMouseEvent *)
This event handler, for event event, can be reimplemented in a subclass to receive mouse press events...
Definition: qwidget.cpp:9261
The QWidget class is the base class of all user interface objects.
Definition: qwidget.h:150
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
virtual QSize sizeHint() const
virtual void paintEvent(QPaintEvent *)
This event handler can be reimplemented in a subclass to receive paint events passed in event...
Definition: qwidget.cpp:9548
bool isSliderDown() const
The QScrollBar widget provides a vertical or horizontal scroll bar.
Definition: qscrollbar.h:59
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
const char * name
The QHideEvent class provides an event which is sent after a widget is hidden.
Definition: qevent.h:388
#define Q_OBJECT
Definition: qobjectdefs.h:157
The QMouseEvent class contains parameters that describe a mouse event.
Definition: qevent.h:85
virtual void contextMenuEvent(QContextMenuEvent *)
This event handler, for event event, can be reimplemented in a subclass to receive widget context men...
Definition: qwidget.cpp:9645
virtual void hideEvent(QHideEvent *)
This event handler can be reimplemented in a subclass to receive widget hide events.
Definition: qwidget.cpp:9864
The QAbstractSlider class provides an integer value within a range.
The QStyleOptionSlider class is used to describe the parameters needed for drawing a slider...
Definition: qstyleoption.h:701
The QSize class defines the size of a two-dimensional object using integer point precision.
Definition: qsize.h:53
#define Q_DECLARE_PRIVATE(Class)
Definition: qglobal.h:2467
virtual void mouseMoveEvent(QMouseEvent *)
This event handler, for event event, can be reimplemented in a subclass to receive mouse move events ...
Definition: qwidget.cpp:9239
The QPaintEvent class contains event parameters for paint events.
Definition: qevent.h:298
Orientation
Definition: qnamespace.h:174
The QEvent class is the base class of all event classes.
Definition: qcoreevent.h:56
#define QT_END_HEADER
Definition: qglobal.h:137