Qt 4.8
qabstractscrollarea.h
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41 
42 #ifndef QABSTRACTSCROLLAREA_H
43 #define QABSTRACTSCROLLAREA_H
44 
45 #include <QtGui/qframe.h>
46 
48 
50 
51 QT_MODULE(Gui)
52 
53 #ifndef QT_NO_SCROLLAREA
54 
55 class QMargins;
56 class QScrollBar;
58 
60 {
61  Q_OBJECT
64 
65 public:
66  explicit QAbstractScrollArea(QWidget* parent=0);
68 
69  Qt::ScrollBarPolicy verticalScrollBarPolicy() const;
70  void setVerticalScrollBarPolicy(Qt::ScrollBarPolicy);
71  QScrollBar *verticalScrollBar() const;
72  void setVerticalScrollBar(QScrollBar *scrollbar);
73 
74  Qt::ScrollBarPolicy horizontalScrollBarPolicy() const;
75  void setHorizontalScrollBarPolicy(Qt::ScrollBarPolicy);
76  QScrollBar *horizontalScrollBar() const;
77  void setHorizontalScrollBar(QScrollBar *scrollbar);
78 
79  QWidget *cornerWidget() const;
80  void setCornerWidget(QWidget *widget);
81 
82  void addScrollBarWidget(QWidget *widget, Qt::Alignment alignment);
83  QWidgetList scrollBarWidgets(Qt::Alignment alignment);
84 
85  QWidget *viewport() const;
86  void setViewport(QWidget *widget);
87  QSize maximumViewportSize() const;
88 
89  QSize minimumSizeHint() const;
90 
91  QSize sizeHint() const;
92 
93 protected Q_SLOTS:
94  void setupViewport(QWidget *viewport);
95 
96 protected:
98  void setViewportMargins(int left, int top, int right, int bottom);
99  void setViewportMargins(const QMargins &margins);
100 
101  bool event(QEvent *);
102  virtual bool viewportEvent(QEvent *);
103 
104  void resizeEvent(QResizeEvent *);
105  void paintEvent(QPaintEvent *);
109  void mouseMoveEvent(QMouseEvent *);
110 #ifndef QT_NO_WHEELEVENT
111  void wheelEvent(QWheelEvent *);
112 #endif
113 #ifndef QT_NO_CONTEXTMENU
115 #endif
116 #ifndef QT_NO_DRAGANDDROP
120  void dropEvent(QDropEvent *);
121 #endif
122 
123  void keyPressEvent(QKeyEvent *);
124 
125  virtual void scrollContentsBy(int dx, int dy);
126 
127 private:
130  Q_PRIVATE_SLOT(d_func(), void _q_hslide(int))
131  Q_PRIVATE_SLOT(d_func(), void _q_vslide(int))
132  Q_PRIVATE_SLOT(d_func(), void _q_showOrHideScrollBars())
133 
136 };
137 
138 #endif // QT_NO_SCROLLAREA
139 
141 
143 
144 #endif // QABSTRACTSCROLLAREA_H
void paintEvent(QPaintEvent *)
This event handler can be reimplemented in a subclass to receive paint events passed in event...
Definition: qframe.cpp:527
The QKeyEvent class describes a key event.
Definition: qevent.h:224
Qt::ScrollBarPolicy horizontalScrollBarPolicy
the policy for the horizontal scroll bar
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
QPointer< QWidget > widget
#define QT_MODULE(x)
Definition: qglobal.h:2783
virtual QSize minimumSizeHint() const
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
The QWheelEvent class contains parameters that describe a wheel event.
Definition: qevent.h:139
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 dragEnterEvent(QDragEnterEvent *)
This event handler is called when a drag is in progress and the mouse enters this widget...
Definition: qwidget.cpp:9768
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
virtual void resizeEvent(QResizeEvent *)
This event handler can be reimplemented in a subclass to receive widget resize events which are passe...
Definition: qwidget.cpp:9587
Qt::ScrollBarPolicy verticalScrollBarPolicy
the policy for the vertical scroll bar
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
#define Q_PRIVATE_SLOT(d, signature)
Definition: qobjectdefs.h:73
The QAbstractScrollArea widget provides a scrolling area with on-demand scroll bars.
#define Q_SLOTS
Definition: qobjectdefs.h:71
The QDragMoveEvent class provides an event which is sent while a drag and drop action is in progress...
Definition: qevent.h:530
Q_CORE_EXPORT QTextStream & right(QTextStream &s)
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
virtual void mouseDoubleClickEvent(QMouseEvent *)
This event handler, for event event, can be reimplemented in a subclass to receive mouse double click...
Definition: qwidget.cpp:9306
The QResizeEvent class contains event parameters for resize events.
Definition: qevent.h:349
The QDragLeaveEvent class provides an event that is sent to a widget when a drag and drop action leav...
Definition: qevent.h:577
virtual void keyPressEvent(QKeyEvent *)
This event handler, for event event, can be reimplemented in a subclass to receive key press events f...
Definition: qwidget.cpp:9375
#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 dragMoveEvent(QDragMoveEvent *)
This event handler is called if a drag is in progress, and when any of the following conditions occur...
Definition: qwidget.cpp:9786
The QDropEvent class provides an event which is sent when a drag and drop action is completed...
Definition: qevent.h:476
virtual void wheelEvent(QWheelEvent *)
This event handler, for event event, can be reimplemented in a subclass to receive wheel events for t...
Definition: qwidget.cpp:9326
virtual void dropEvent(QDropEvent *)
This event handler is called when the drag is dropped on this widget.
Definition: qwidget.cpp:9817
ScrollBarPolicy
Definition: qnamespace.h:1420
The QDragEnterEvent class provides an event which is sent to a widget when a drag and drop action ent...
Definition: qevent.h:555
bool event(QEvent *e)
Reimplemented Function
Definition: qframe.cpp:587
QSize sizeHint() const
em>Reimplemented Function
Definition: qframe.cpp:508
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 QMargins class defines the four margins of a rectangle.
Definition: qmargins.h:53
virtual void dragLeaveEvent(QDragLeaveEvent *)
This event handler is called when a drag is in progress and the mouse leaves this widget...
Definition: qwidget.cpp:9802
#define class
The QPaintEvent class contains event parameters for paint events.
Definition: qevent.h:298
The QEvent class is the base class of all event classes.
Definition: qcoreevent.h:56
The QFrame class is the base class of widgets that can have a frame.
Definition: qframe.h:55
Q_CORE_EXPORT QTextStream & left(QTextStream &s)
#define QT_END_HEADER
Definition: qglobal.h:137
The QList class is a template class that provides lists.
Definition: qdatastream.h:62