emulkbd.h

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#if !defined(EMULKBD_H)
#define EMULKBD_H

#if defined (_MSC_VER) && (_MSC_VER > 1000)
#pragma once
#endif // _MSC_VER > 1000

#include <QtGui/QFrame>

// fwd decl
class QGridLayout;
class EmulKey;

class EmulKbd : public QFrame
{
    Q_OBJECT

// Data members
protected:
    QGridLayout *layout;
    int frame_width;
    int active_row;

// Construction
public:
    EmulKbd(QWidget *parent = 0, Qt::WFlags f = 0);
    virtual ~EmulKbd();

// Public methods
    void addKey(const char *label, int keycode, int row, int col, int matrix_row = -1, int matrix_col = -1);
    void setRow(int row);
    int readCols(void);

// Protected methods
protected:
    void setKey(int row, int col, bool on);

// Base class overrides
protected:
    virtual QSizePolicy sizePolicy() const;
    virtual void resizeEvent(QResizeEvent *e);
    virtual bool event(QEvent *e);

// Friends
    friend class EmulKey;
};


// Private helper class for EmulKbd
// NOTE: with protected inheritance, dynamic_cast<> does not work (gcc 2.96)
#include <QtGui/qpushbutton.h>
class EmulKey : public QPushButton
{
    Q_OBJECT

// Data members
protected:
    int row, col;
    int keycode;

// Construction
public:
    EmulKey(EmulKbd *parent, const char *label, int keycode, int _row, int _col);
    virtual ~EmulKey();

// superclass overrides
    void setDown(bool enable);

protected slots:
    void keyPressed(void);
    void keyReleased(void);

// Friends
public:
    friend class EmulKbd;
};

#endif // !defined(EMULKBD_H)