Qwt User's Guide  6.1.6
qwt_counter.h
1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2  * Qwt Widget Library
3  * Copyright (C) 1997 Josef Wilgen
4  * Copyright (C) 2002 Uwe Rathmann
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the Qwt License, Version 1.0
8  *****************************************************************************/
9 
10 #ifndef QWT_COUNTER_H
11 #define QWT_COUNTER_H
12 
13 #include "qwt_global.h"
14 #include <qwidget.h>
15 
48 class QWT_EXPORT QwtCounter : public QWidget
49 {
50  Q_OBJECT
51 
52  Q_PROPERTY( double value READ value WRITE setValue )
53  Q_PROPERTY( double minimum READ minimum WRITE setMinimum )
54  Q_PROPERTY( double maximum READ maximum WRITE setMaximum )
55  Q_PROPERTY( double singleStep READ singleStep WRITE setSingleStep )
56 
57  Q_PROPERTY( int numButtons READ numButtons WRITE setNumButtons )
58  Q_PROPERTY( int stepButton1 READ stepButton1 WRITE setStepButton1 )
59  Q_PROPERTY( int stepButton2 READ stepButton2 WRITE setStepButton2 )
60  Q_PROPERTY( int stepButton3 READ stepButton3 WRITE setStepButton3 )
61 
62  Q_PROPERTY( bool readOnly READ isReadOnly WRITE setReadOnly )
63  Q_PROPERTY( bool wrapping READ wrapping WRITE setWrapping )
64 
65 public:
67  enum Button
68  {
70  Button1,
71 
73  Button2,
74 
76  Button3,
77 
79  ButtonCnt
80  };
81 
82  explicit QwtCounter( QWidget *parent = NULL );
83  virtual ~QwtCounter();
84 
85  void setValid( bool );
86  bool isValid() const;
87 
88  void setWrapping( bool );
89  bool wrapping() const;
90 
91  bool isReadOnly() const;
92  void setReadOnly( bool );
93 
94  void setNumButtons( int );
95  int numButtons() const;
96 
97  void setIncSteps( QwtCounter::Button, int numSteps );
98  int incSteps( QwtCounter::Button ) const;
99 
100  virtual QSize sizeHint() const;
101 
102  double singleStep() const;
103  void setSingleStep( double stepSize );
104 
105  void setRange( double min, double max );
106 
107  double minimum() const;
108  void setMinimum( double );
109 
110  double maximum() const;
111  void setMaximum( double );
112 
113  void setStepButton1( int nSteps );
114  int stepButton1() const;
115 
116  void setStepButton2( int nSteps );
117  int stepButton2() const;
118 
119  void setStepButton3( int nSteps );
120  int stepButton3() const;
121 
122  double value() const;
123 
124 public Q_SLOTS:
125  void setValue( double );
126 
127 
128 Q_SIGNALS:
133  void buttonReleased ( double value );
134 
139  void valueChanged ( double value );
140 
141 protected:
142  virtual bool event( QEvent * );
143  virtual void wheelEvent( QWheelEvent * );
144  virtual void keyPressEvent( QKeyEvent * );
145 
146 private Q_SLOTS:
147  void btnReleased();
148  void btnClicked();
149  void textChanged();
150 
151 private:
152  void incrementValue( int numSteps );
153  void initCounter();
154  void updateButtons();
155  void showNumber( double );
156 
157  class PrivateData;
158  PrivateData *d_data;
159 };
160 
161 #endif
QwtCounter::buttonReleased
void buttonReleased(double value)
QwtCounter::Button
Button
Button index.
Definition: qwt_counter.h:68
QwtCounter::Button1
@ Button1
Button intended for minor steps.
Definition: qwt_counter.h:70
QwtCounter::Button2
@ Button2
Button intended for medium steps.
Definition: qwt_counter.h:73
QwtCounter
The Counter Widget.
Definition: qwt_counter.h:49
QwtCounter::valueChanged
void valueChanged(double value)
QwtCounter::Button3
@ Button3
Button intended for large steps.
Definition: qwt_counter.h:76