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//////////////////////////////////////////////////////////////////////
// freqctrl.h: interface for the CFreqCtrl class.
//
// History:
// 2010-09-15 Initial creation MSW
// 2011-03-27 Initial release
/////////////////////////////////////////////////////////////////////
#ifndef FREQCTRL_H
#define FREQCTRL_H
///////////////////////////////////////////////////////////////////////
// To use this control, add a frame using the QT designer editor.
// Promote it to the CFreqCtrl class and include file freqctrl.h
// Initilaize the control in the constructor of the controls parent
// ex: ui->frameFreqCtrl->Setup(9, 10000U, 230000000U, 1, UNITS_MHZ );
// where 9 is the number of display digits, min freq is 10KHz , Max is 230MHz
// the minimum step size is 1Hz and the freq is displayed as MHz
// NOTE: the frequency is a qint64 64 bit integer value
// to change frequency call SetFrequency()
// ex: ui->frameFreqCtrl->SetFrequency(146000000);
//
// One signal is sent when the control frequency changes:
//void NewFrequency(qint64 freq); //emitted when frequency has changed
///////////////////////////////////////////////////////////////////////
#include <QtGui>
#include <QFrame>
#include <QImage>
enum FUNITS{UNITS_HZ, UNITS_KHZ, UNITS_MHZ, UNITS_GHZ,UNITS_SEC,UNITS_MSEC,UNITS_USEC,UNITS_NSEC };
#define MAX_DIGITS 12
#define MIN_DIGITS 4
class CFreqCtrl : public QFrame
{
Q_OBJECT
public:
explicit CFreqCtrl(QWidget *parent = 0);
~CFreqCtrl();
QSize minimumSizeHint() const;
QSize sizeHint() const;
//primary access routines
void Setup(int NumDigits, qint64 Minf, qint64 Maxf,int MinStep, FUNITS UnitsType);
void SetFrequency(qint64 freq);
void SetUnits(FUNITS units);
void SetDigitColor(QColor cr);
void SetBkColor(QColor cr);
void SetUnitsColor(QColor cr);
void SetHighlightColor(QColor cr);
qint64 GetFrequency(){return m_freq;}
signals:
void NewFrequency(qint64 freq); //emitted when frequency has changed
public slots:
protected: //overrides for this control
void paintEvent(QPaintEvent *);
void resizeEvent(QResizeEvent* );
void mouseMoveEvent(QMouseEvent * );
void mousePressEvent(QMouseEvent * );
void wheelEvent( QWheelEvent * );
void leaveEvent( QEvent * );
void keyPressEvent( QKeyEvent * );
private:
void UpdateCtrl(bool all);
void DrawBkGround(QPainter &Painter);
void DrawDigits(QPainter &Painter);
void IncDigit();
void DecDigit();
void IncFreq();
void DecFreq();
void CursorHome();
void CursorEnd();
void MoveCursorLeft();
void MoveCursorRight();
bool InRect(QRect &rect, QPoint &point);
bool m_UpdateAll;
bool m_ExternalKeyActive;
bool m_LRMouseFreqSel; /*! Use left/right mouse buttons. If FALSE click area determines up/down. */
bool m_ResetLowerDigits; /*! If TRUE digits below the active one will be reset to 0
when the active digit is incremented or decremented. */
int m_FirstEditableDigit;
int m_LastLeadZeroPos;
int m_LeadZeroPos;
int m_NumDigits;
int m_DigStart;
int m_ActiveEditDigit;
int m_LastEditDigit;
int m_DecPos;
int m_NumSeps;
qint64 m_MinStep;
qint64 m_freq;
qint64 m_Oldfreq;
qint64 m_MinFreq;
qint64 m_MaxFreq;
QColor m_DigitColor;
QColor m_BkColor;
QColor m_UnitsColor;
QColor m_HighlightColor;
QPixmap m_Pixmap;
QSize m_Size;
FUNITS m_Units;
QRect m_rectCtrl; //main control rectangle
QRect m_UnitsRect; //rectangle where Units text goes
QRect m_SepRect[MAX_DIGITS]; //separation rectangles for commas,dec pt, etc.
QString m_UnitString;
QFont m_DigitFont;
QFont m_UnitsFont;
struct DigStuct
{
qint64 weight; //decimal weight of this digit
qint64 incval; //value this digit increments or decrements
QRect dQRect; //Digit bounding rectangle
int val; //value of this digit(0-9)
bool modified; //set if this digit has been modified
bool editmode; //set if this digit is selected for editing
}m_DigitInfo[MAX_DIGITS];
};
#endif // FREQCTRL_H
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