/***************************************************************************
 *   Copyright (c) 2007 Werner Mayer <wmayer@users.sourceforge.net>        *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Library General Public           *
 *   License as published by the Free Software Foundation; either          *
 *   version 2 of the License, or (at your option) any later version.      *
 *                                                                         *
 *   This library  is distributed in the hope that it will be useful,      *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU Library General Public License for more details.                  *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this library; see the file COPYING.LIB. If not,    *
 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/


#ifndef WIZARD_H
#define WIZARD_H


#include <QtDesigner/QDesignerContainerExtension>
#include <QtDesigner/QExtensionFactory>
#include <QDialog>

class QLabel;
class QFrame;
class QStackedWidget;
class QPushButton;
class QHBoxLayout;
class QVBoxLayout;
class QExtensionManager;

class Wizard : public QDialog
{
    Q_OBJECT
    Q_PROPERTY(int currentIndex READ currentIndex WRITE setCurrentIndex)
    Q_PROPERTY(QString pageTitle READ pageTitle WRITE setPageTitle STORED false)

public:
    Wizard(QWidget *parent = 0);

    QSize sizeHint() const;

    void addPage(QWidget *page);
    void removePage(int index);
    int count() const;
    int currentIndex() const;
    void insertPage(int index, QWidget *page);
    void setCurrentIndex(int index);
    QWidget *widget(int index);

    QPushButton* backButton() const;
    QPushButton* nextButton() const;

    QString pageTitle() const;
    void setPageTitle(QString const &newTitle);

public Q_SLOTS:
    void backButtonClicked();
    void nextButtonClicked();

Q_SIGNALS:
    void currentIndexChanged(int index);
    void pageTitleChanged(const QString &title);

private:
    QLabel *textLabel;
    QFrame* topLine;
    QFrame* bottomLine;
    QStackedWidget *stackWidget;
    QPushButton *_cancelButton;
    QPushButton *_backButton;
    QPushButton *_nextButton;
    QPushButton *_finishButton;
    QHBoxLayout *buttonLayout;
    QVBoxLayout *mainLayout;
};

class WizardExtension : public QObject, public QDesignerContainerExtension
{
    Q_OBJECT
    Q_INTERFACES(QDesignerContainerExtension)

public:
    WizardExtension(Wizard *widget, QObject *parent);

    int count() const;
    QWidget *widget(int index) const;
    int currentIndex() const;
    void setCurrentIndex(int index);
    void addWidget(QWidget *widget);
    void insertWidget(int index, QWidget *widget);
    void remove(int index);

private:
    Wizard *myWidget;
};

class QExtensionManager;

class WizardExtensionFactory : public QExtensionFactory
{
    Q_OBJECT

public:
    WizardExtensionFactory(QExtensionManager *parent = 0);

protected:
    QObject *createExtension(QObject *object, const QString &iid, QObject *parent) const;
};

#endif