Qt 4.8
qwidgetresizehandler_p.h
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41 
42 #ifndef QWIDGETRESIZEHANDLER_P_H
43 #define QWIDGETRESIZEHANDLER_P_H
44 
45 //
46 // W A R N I N G
47 // -------------
48 //
49 // This file is not part of the Qt API. This header file may
50 // change from version to version without notice, or even be
51 // removed.
52 //
53 // We mean it.
54 //
55 
56 #include "QtCore/qobject.h"
57 #include "QtCore/qpoint.h"
58 
59 #ifndef QT_NO_RESIZEHANDLER
60 
62 
63 class QMouseEvent;
64 class QKeyEvent;
65 
67 {
68  Q_OBJECT
69 
70 public:
71  enum Action {
72  Move = 0x01,
73  Resize = 0x02,
74  Any = Move|Resize
75  };
76 
77  explicit QWidgetResizeHandler(QWidget *parent, QWidget *cw = 0);
78  void setActive(bool b) { setActive(Any, b); }
79  void setActive(Action ac, bool b);
80  bool isActive() const { return isActive(Any); }
81  bool isActive(Action ac) const;
82  void setMovingEnabled(bool b) { movingEnabled = b; }
83  bool isMovingEnabled() const { return movingEnabled; }
84 
85  bool isButtonDown() const { return buttonDown; }
86 
87  void setExtraHeight(int h) { extrahei = h; }
88  void setSizeProtection(bool b) { sizeprotect = b; }
89 
90  void setFrameWidth(int w) { fw = w; }
91 
92  void doResize();
93  void doMove();
94 
95 Q_SIGNALS:
96  void activate();
97 
98 protected:
99  bool eventFilter(QObject *o, QEvent *e);
100  void mouseMoveEvent(QMouseEvent *e);
101  void keyPressEvent(QKeyEvent *e);
102 
103 private:
105 
108  TopLeft, BottomRight, BottomLeft, TopRight,
111  };
112 
118  int fw;
119  int extrahei;
120  int range;
127 
128  void setMouseCursor(MousePosition m);
129  bool isMove() const {
130  return moveResizeMode && mode == Center;
131  }
132  bool isResize() const {
133  return moveResizeMode && !isMove();
134  }
135 };
136 
138 
139 #endif // QT_NO_RESIZEHANDLER
140 
141 #endif // QWIDGETRESIZEHANDLER_P_H
The QKeyEvent class describes a key event.
Definition: qevent.h:224
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define Q_GUI_EXPORT
Definition: qglobal.h:1450
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
The QObject class is the base class of all Qt objects.
Definition: qobject.h:111
#define Q_SIGNALS
Definition: qobjectdefs.h:72
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
unsigned int uint
Definition: qglobal.h:996
#define Q_OBJECT
Definition: qobjectdefs.h:157
virtual bool eventFilter(QObject *, QEvent *)
Filters events if this object has been installed as an event filter for the watched object...
Definition: qobject.cpp:1375
The QMouseEvent class contains parameters that describe a mouse event.
Definition: qevent.h:85
The QPoint class defines a point in the plane using integer precision.
Definition: qpoint.h:53
The QEvent class is the base class of all event classes.
Definition: qcoreevent.h:56