Q_EXPORT - The Journey

[mkts]

Hi all
This is file is for emulation functionality for old QFocusData class witch i need
Macro Q_EXPORT is making me errors but i need it in my prog.

1#ifndef QFOCUSDATA_H
2#define QFOCUSDATA_H
 
3#ifndef QT_H
4#include <qwidgetlist.h>
5#endif // QT_H
6#include <qevent.h>
 
class Q_EXPORT QFocusData {
public:
   QWidget* focusWidget() const { return it.current(); }
   QWidget* home();
   QWidget* next();
   QWidget* prev();
   QWidget* first() const;
   QWidget* last() const;
   int count() const { return focusWidgets.count(); }
 
private:
    friend class QWidget;
 
    QFocusData() : it(focusWidgets) {}
    QWidgetList	  focusWidgets;
    //QWidgetListIt it;
};
 
#endif // QFOCUSDATA_H

1#ifndef QFOCUSDATA_H
2#define QFOCUSDATA_H

3#ifndef QT_H
4#include <qwidgetlist.h>
5#endif // QT_H
6#include <qevent.h>

class Q_EXPORT QFocusData {
public:
   QWidget* focusWidget() const { return it.current(); }
   QWidget* home();
   QWidget* next();
   QWidget* prev();
   QWidget* first() const;
   QWidget* last() const;
   int count() const { return focusWidgets.count(); }

private:
    friend class QWidget;

    QFocusData() : it(focusWidgets) {}
    QWidgetList	  focusWidgets;
    //QWidgetListIt it;
};

#endif // QFOCUSDATA_H

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So if some has any suggestions please for help

[wysota]

What is Q_EXPORT?

[mkts]

Qt <3 tools part for expanding internal transfer or usability- i am not sure about this

[mkts]

error: variable ‘Q_EXPORT QFocusData’ has initializer but incomplete type

[wysota]

That's because in Qt4 there is no such thing as Q_EXPORT.

[mkts]

Hi all
If anyone is interested this is my solution of Q_EXPORT macro problem

qfocusdata.h
 
#ifndef QFOCUSDATA_H
#define QFOCUSDATA_H
 
#ifdef Q_WIN
         #include <qwindowsystem_qws.h>
         #ifdef  LIBAPP_EXPORTS
                 #define LIBAPP_API __declspec(dllexport)
         #else   // !LIBAPP_EXPORTS
                 #define LIBAPP_API __declspec(dllimport)
         #endif  // LIBAPP_EXPORTS
#else
         #define LIBAPP_API // Q_EXPORT = LIBAPP_API
#endif
// all You see hire is copy from Qt help pages;
http://web.mit.edu/qt/www/qfocusdata-h.html
and
http://lists.trolltech.com/qt-interest/2004-12/thread00790-0.html
 
#ifndef QT_H
#include <QWidgetList> // "qwidgetlist.h"
#endif // QT_H
 
 
class LIBAPP_API QFocusData {
public:
    //QWidget* focusWidget() const { return it.current(); }
    // current is not supported by QWidget but it is up to You- i do not need it. 
    QWidget* home();
    QWidget* next();
    QWidget* prev();
    QWidget* first() const;
    QWidget* last() const;
    int count() const { return focusWidgets.count(); }
 
private:
    friend class QWidget;
    QFocusData() : it(focusWidgets) {}
    QWidgetList	  focusWidgets;
    QWidgetList it;
};
 
#endif // QFOCUSDATA_H

qfocusdata.h

#ifndef QFOCUSDATA_H
#define QFOCUSDATA_H

#ifdef Q_WIN
         #include <qwindowsystem_qws.h>
         #ifdef  LIBAPP_EXPORTS
                 #define LIBAPP_API __declspec(dllexport)
         #else   // !LIBAPP_EXPORTS
                 #define LIBAPP_API __declspec(dllimport)
         #endif  // LIBAPP_EXPORTS
#else
         #define LIBAPP_API // Q_EXPORT = LIBAPP_API
#endif
// all You see hire is copy from Qt help pages;
http://web.mit.edu/qt/www/qfocusdata-h.html
and
http://lists.trolltech.com/qt-interest/2004-12/thread00790-0.html

#ifndef QT_H
#include <QWidgetList> // "qwidgetlist.h"
#endif // QT_H


class LIBAPP_API QFocusData {
public:
    //QWidget* focusWidget() const { return it.current(); }
    // current is not supported by QWidget but it is up to You- i do not need it. 
    QWidget* home();
    QWidget* next();
    QWidget* prev();
    QWidget* first() const;
    QWidget* last() const;
    int count() const { return focusWidgets.count(); }

private:
    friend class QWidget;
    QFocusData() : it(focusWidgets) {}
    QWidgetList	  focusWidgets;
    QWidgetList it;
};

#endif // QFOCUSDATA_H

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