How to Promote QWebview (Custom widget)

[Tadas]

Hi,

I'm trying to recreate these tutorials:
http://labs.qt.nokia.com/2008/07/03/...h-google-maps/
http://efforts.embedded.ufcg.edu.br/qt/?p=80

There is one thing I cant understand, how to promote QWebview.

I make identical class, project file, I only make custom Ui. but then I add QWebView to Ui, I can't promote it. Do I need edit mainwindow.ui manually ? as far as I know, this file is generated automatically by Qt Gui designer.
For example, I create Header file map.h (I will add functionality later)

#ifndef MAP_H
#define MAP_H
#include <QWebView>
class map : public QWebView
{
    Q_OBJECT
public:
    explicit map(QWidget *parent = 0);
signals:
public slots:
};
#endif // MAP_H

#ifndef MAP_H
#define MAP_H
#include <QWebView>
class map : public QWebView
{
    Q_OBJECT
public:
    explicit map(QWidget *parent = 0);
signals:
public slots:
};
#endif // MAP_H

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and source file map.cpp with class

#include "map.h"
#include "ui_mainwindow.h"
 
map::map(QWidget *parent) :
    QWebView(parent)
{
}

#include "map.h"
#include "ui_mainwindow.h"

map::map(QWidget *parent) :
    QWebView(parent)
{
}

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then in UI designer "mainwindow.ui" I add QWebview Widget, Reneame Object name to "map", then I click on it right mouse button, but I can't see "Promote to" option.

other project files
mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
    class MainWindow;
}
class MainWindow : public QMainWindow
{
    Q_OBJECT
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
private:
    Ui::MainWindow *ui;
};
 
#endif // MAINWINDOW_H

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
    class MainWindow;
}
class MainWindow : public QMainWindow
{
    Q_OBJECT
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
private:
    Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H

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mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

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untitled1.pro

QT       += core gui
 
TARGET = untitled1
TEMPLATE = app
 
 
SOURCES += main.cpp\
        mainwindow.cpp \
    map.cpp
 
HEADERS  += mainwindow.h \
    map.h
 
FORMS    += mainwindow.ui
QT+= network \
        xml\
        webkit

QT       += core gui

TARGET = untitled1
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp \
    map.cpp

HEADERS  += mainwindow.h \
    map.h

FORMS    += mainwindow.ui
QT+= network \
        xml\
        webkit

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If I try to add promoted widget manually from menu "Promoted widgets..." in drop box "base class name:" I cant see QWebView

Thank you in advice.