Qwt User's Guide: qwt_counter.h Source File

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# qwt_counter.h

    00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
    00002  * Qwt Widget Library
    00003  * Copyright (C) 1997   Josef Wilgen
    00004  * Copyright (C) 2002   Uwe Rathmann
    00005  *
    00006  * This library is free software; you can redistribute it and/or
    00007  * modify it under the terms of the Qwt License, Version 1.0
    00008  *****************************************************************************/
    00009
    00010 // vim: expandtab
    00011
    00012 #ifndef QWT_COUNTER_H
    00013 #define QWT_COUNTER_H
    00014
    00015 #include <qwidget.h>
    00016 #include "qwt_global.h"
    00017 #include "qwt_double_range.h"
    00018
    00060 class QWT_EXPORT QwtCounter : public QWidget, public QwtDoubleRange
    00061 {
    00062     Q_OBJECT
    00063
    00064     Q_PROPERTY( int numButtons READ numButtons WRITE setNumButtons )
    00065     Q_PROPERTY( double basicstep READ step WRITE setStep )
    00066     Q_PROPERTY( double minValue READ minVal WRITE setMinValue )
    00067     Q_PROPERTY( double maxValue READ maxVal WRITE setMaxValue )
    00068     Q_PROPERTY( int stepButton1 READ stepButton1 WRITE setStepButton1 )
    00069     Q_PROPERTY( int stepButton2 READ stepButton2 WRITE setStepButton2 )
    00070     Q_PROPERTY( int stepButton3 READ stepButton3 WRITE setStepButton3 )
    00071     Q_PROPERTY( double value READ value WRITE setValue )
    00072     Q_PROPERTY( bool editable READ editable WRITE setEditable )
    00073
    00074 public:
    00079     enum Button
    00080     {
    00081         Button1,
    00082         Button2,
    00083         Button3,
    00084         ButtonCnt
    00085     };
    00086
    00087     explicit QwtCounter(QWidget *parent = NULL);
    00088 #if QT_VERSION < 0x040000
    00089     explicit QwtCounter(QWidget *parent, const char *name);
    00090 #endif
    00091     virtual ~QwtCounter();
    00092
    00093     bool editable() const;
    00094     void setEditable(bool);
    00095
    00096     void setNumButtons(int n);
    00097     int numButtons() const;
    00098
    00099     void setIncSteps(QwtCounter::Button btn, int nSteps);
    00100     int incSteps(QwtCounter::Button btn) const;
    00101
    00102     virtual void setValue(double);
    00103     virtual QSize sizeHint() const;
    00104
    00105     virtual void polish();
    00106
    00107     // a set of dummies to help the designer
    00108
    00109     double step() const;
    00110     void setStep(double s);
    00111     double minVal() const;
    00112     void setMinValue(double m);
    00113     double maxVal() const;
    00114     void setMaxValue(double m);
    00115     void setStepButton1(int nSteps);
    00116     int stepButton1() const;
    00117     void setStepButton2(int nSteps);
    00118     int stepButton2() const;
    00119     void setStepButton3(int nSteps);
    00120     int stepButton3() const;
    00121     virtual double value() const;
    00122
    00123 signals:
    00128     void buttonReleased (double value);
    00129
    00134     void valueChanged (double value);
    00135
    00136 protected:
    00137     virtual bool event(QEvent *);
    00138     virtual void wheelEvent(QWheelEvent *);
    00139     virtual void keyPressEvent(QKeyEvent *);
    00140     virtual void rangeChange();
    00141
    00142 private slots:
    00143     void btnReleased();
    00144     void btnClicked();
    00145     void textChanged();
    00146
    00147 private:
    00148     void initCounter();
    00149     void updateButtons();
    00150     void showNum(double);
    00151     virtual void valueChange();
    00152
    00153     class PrivateData;
    00154     PrivateData *d_data;
    00155 };
    00156
    00157 #endif