Errors encountered with Maps Demo Tutorial

goosebumps4

I am trying to create an app that will work with the Ovi Maps. I tried implementing this example: http://doc.qt.nokia.com/qtmobility-1.2/tutorials-mapsdemo-part1.html

But I have been prompted with 3 errors:
@/Users/andreibechet/Work/Nokia Project/Qt/Testing/Maps03-build-simulator/../Maps03/geomap.h:16: error: 'MapsWidget' has not been declared@
@/Users/andreibechet/Work/Nokia Project/Qt/Testing/Maps03-build-simulator/../Maps03/geomap.h:20: error: ISO C++ forbids declaration of 'MapsWidget' with no type@
@/Users/andreibechet/Work/Nokia Project/Qt/Testing/Maps03-build-simulator/../Maps03/geomap.h:20: error: expected ';' before '*' token@

Here is the code
geomap.h
@#ifndef GEOMAP_H
#define GEOMAP_H

#include "mapswidget.h"

#include <QGraphicsGeoMap>

QTM_USE_NAMESPACE

class GeoMap : public QGraphicsGeoMap
{
Q_OBJECT

public:
GeoMap(QGeoMappingManager *manager, MapsWidget *mapsWidget);
~GeoMap();

private:
MapsWidget *mapsWidget;

};

#endif // GEOMAP_H
@

geomap.cpp
@#include "geomap.h"

GeoMap::GeoMap(QGeoMappingManager *manager, MapsWidget *mapsWidget) :
QGraphicsGeoMap(manager), mapsWidget(mapsWidget)
{
}
@

mapswidget.h
@#ifndef MAPSWIDGET_H
#define MAPSWIDGET_H

#include "mapswidgetprivate.h"

#include <QWidget>
#include <QGeoMappingManager>

QTM_USE_NAMESPACE

class MapsWidget : public QWidget
{
Q_OBJECT

public:
MapsWidget(QWidget *parent = 0);
~MapsWidget();

public slots:
void initialize(QGeoMappingManager *manager);

private:
MapsWidgetPrivate *d;

};

#endif // MAPSWIDGET_H
@

mapswidget.cpp
@#include "mapswidget.h"

MapsWidget::MapsWidget(QWidget *parent) :
QWidget(parent)
{
}
@

mapswidgetprivate.h
@#ifndef MAPSWIDGETPRIVATE_H
#define MAPSWIDGETPRIVATE_H

#include "geomap.h"

#include <QGraphicsView>
#include <QGraphicsScene>
#include <QGeoCoordinate>

QTM_USE_NAMESPACE

class MapsWidgetPrivate
{
public:
GeoMap *map;
QGraphicsView *view;

// MapsWidgetPrivate();
};

#endif // MAPSWIDGETPRIVATE_H
@

mapswidgedprivate.cpp
@#include "mapswidgetprivate.h"

void MapsWidget::initialize(QGeoMappingManager *manager)
{
d->map = new GeoMap(manager, this);

 QGraphicsScene *sc = new QGraphicsScene;
 sc->addItem(d->map);

 d->map->resize(300, 480);

 d->view = new QGraphicsView(sc, this);
 d->view->setVisible(true);
 d->view->setInteractive(true);

 d->map->setCenter(QGeoCoordinate(-27.5796, 153.1));
 d->map->setZoomLevel(15);

}
@

main.cpp
@#include "mapswidget.h"

#include <QtGui/QApplication>
#include <QGeoServiceProvider>

int main(int argc, char *argv[])
{
QApplication app(argc, argv);

MapsWidget w;
w.show();

QGeoServiceProvider *serviceProvider = new QGeoServiceProvider("nokia");

w.initialize(serviceProvider->mappingManager());

return app.exec();

}

@

thisisbhaskar

Did you add mapswidget.h to HEADERS section of your .pro file???

goosebumps4

Here is the pro file:

@# Add files and directories to ship with the application

by adapting the examples below.

file1.source = myfile

dir1.source = mydir

DEPLOYMENTFOLDERS = # file1 dir1

symbian:TARGET.UID3 = 0xEDF1E0C2

Smart Installer package's UID

This UID is from the protected range

and therefore the package will fail to install if self-signed

By default qmake uses the unprotected range value if unprotected UID is defined for the application

and 0x2002CCCF value if protected UID is given to the application

#symbian:DEPLOYMENT.installer_header = 0x2002CCCF

Allow network access on Symbian

symbian:TARGET.CAPABILITY += NetworkServices

If your application uses the Qt Mobility libraries, uncomment

the following lines and add the respective components to the

MOBILITY variable.

CONFIG += mobility
MOBILITY += location

SOURCES += main.cpp
mapswidget.cpp
mapswidgetprivate.cpp
geomap.cpp
HEADERS +=
mapswidget.h
mapswidgetprivate.h
geomap.h
FORMS += mainwindow.ui

Please do not modify the following two lines. Required for deployment.

include(deployment.pri)
qtcAddDeployment()
@

thisisbhaskar

There is a circular inclusion of header files.. that causes the problem

mapswidget.h has mapswidgetprivate.h included
mapswidgeetprivate.h has geomap.h include
geomap.h has mapswidet.h included

To solve it
@#ifndef GEOMAP_H
#define GEOMAP_H

//#include "mapswidget.h" // remove this line Vijaya Bhaskar Reddy

#include <QGraphicsGeoMap>

QTM_USE_NAMESPACE

class MapsWidget; //add this line Vijaya Bhaskar Reddy
class GeoMap : public QGraphicsGeoMap
{
Q_OBJECT

public:
GeoMap(QGeoMappingManager *manager, MapsWidget *mapsWidget);
~GeoMap();

private:
MapsWidget *mapsWidget;

};

#endif // GEOMAP_H@

And
@
#include "mapswidgetprivate.h"
#include "mapswidget.h" // this is what I have added Vijaya Bhaskar Reddy

void MapsWidget::initialize(QGeoMappingManager *manager)
{
d->map = new GeoMap(manager, this);

 QGraphicsScene *sc = new QGraphicsScene;
 sc->addItem(d->map);

 d->map->resize(300, 480);

 d->view = new QGraphicsView(sc, this);
 d->view->setVisible(true);
 d->view->setInteractive(true);

 d->map->setCenter(QGeoCoordinate(-27.5796, 153.1));
 d->map->setZoomLevel(15);

}
@

goosebumps4

Thank you for the reply, but it still doesn't work. Here are the errors ... really odd ones too.

@:-1: error: symbol(s) not found for architecture x86_64@
@:-1: error: collect2: ld returned 1 exit status@

thisisbhaskar

What is your OS.

goosebumps4

Mac OS 10.6.8 with QT Creator 2.2.1

thisisbhaskar

ok.. will "this":http://developer.qt.nokia.com/forums/viewthread/5665/ thread help you. Looks similar to me.

or "this":http://developer.qt.nokia.com/forums/viewthread/6924

goosebumps4

Thank you. I will look for my solution there.