Moving to another Page, setCurrentIndex() and QStackedLayout

WarriorQt

Hello everyone,
I would like when you click on one of these buttons (button Next or Button Back), to go to another Page.
See the following cod. Someone can give a clue. Thanks

@#ifndef FINDDIALOG_H
#define FINDDIALOG_H

#include <QDialog>

class QPushButton;
class QLabel;
class QStackedLayout;

class FindDialog : public QDialog
{
Q_OBJECT

public :
  FindDialog(QWidget *parent=0);

private slots :
  void framenext        ();
  void frameBack        ();

private :
  QLabel                *title1;
  QLabel                *title2;
  QLabel                *title3;

  QPushButton           *afficheButton1;
  QPushButton           *afficheButton2;
  QPushButton           *afficheButton3;

  QPushButton           *buttonNext;
  QPushButton           *buttonBack;

  QStackedLayout        *layout;

};

#endif // FINDDIALOG_@

@#include <QtGui>

#include "finddialog.h"

FindDialog::FindDialog(QWidget *parent):QDialog(parent)
{
// Page 1
QWidget *page1 = new QWidget;

title1           =        new QLabel("FRAME_1");
afficheButton1   =        new QPushButton("BOUTON_1");
afficheButton1->setFixedSize(190,100);

QVBoxLayout *Box1 = new QVBoxLayout;
Box1->addWidget(title1);
Box1->addWidget(afficheButton1);

page1->setLayout(Box1);

// Page 2
QWidget *page2 = new QWidget;

title2           =        new QLabel("FRAME_2");
afficheButton2   =        new QPushButton("BOUTON_2");
afficheButton2->setFixedSize(190,100);

QVBoxLayout *Box2 = new QVBoxLayout;
Box2->addWidget(title2);
Box2->addWidget(afficheButton2);

page2->setLayout(Box2);

// Page 3
QWidget *page3 = new QWidget;

title3           =        new QLabel("FRAME_3");
afficheButton3   =        new QPushButton("BOUTON_3");
afficheButton2->setFixedSize(190,100);

QVBoxLayout *Box3 = new QVBoxLayout;
Box3->addWidget(title2);
Box3->addWidget(afficheButton2);

page3->setLayout(Box3);

// Ajout de page 1, Page 2 et Page 3 dans un QStackedLayout
layout = new QStackedLayout;
layout->addWidget(page1);
layout->addWidget(page2);
layout->addWidget(page3);

// Bouton permettant de passer d'une page vers une autre
buttonBack = new QPushButton("Back");
buttonNext = new QPushButton("Next");

QHBoxLayout *downBox = new QHBoxLayout;
downBox->addWidget(buttonBack);
downBox->addWidget(buttonNext);

//Ajout du QstackedLayout et des deux boutons (Next, Back) dans le
//layout principal
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addLayout(layout);
mainLayout->addLayout(downBox);

//Definition du slot permettant de passer aux pages suivantes
connect(buttonNext, SIGNAL(clicked()), this, SLOT(framenext()));

setLayout(mainLayout);
setWindowTitle("Boîte_Ly");
setFixedHeight(sizeHint().height());
}

// Définion du slot personnalisé
void FindDialog::framenext()
{
layout->setCurrentIndex(1);
}

void FindDialog::frameBack ()
{
layout->setCurrentIndex(0);
}@

kaivolde

What does not work?
Can you see yout initial layouted dialog?
Only the buttons don't work?

raven-worx

what about this?
@
void FindDialog::framenext()
{
layout->setCurrentIndex( layout->currentIndex() + 1 );
}

void FindDialog::frameBack ()
{
layout->setCurrentIndex( layout->currentIndex() - 1 );
}
@
setCurrentIndex() does nothing when you provide it with an invalid index, so this is the most basic implementation to achieve what you want.

WarriorQt

Hello, Thank you for your help.

I adapted your code like this :
@void FindDialog::framenext()
{
layout->setCurrentIndex( layout->currentIndex() + 2 );
}

void FindDialog::frameBack ()
{
layout->setCurrentIndex( layout->currentIndex() - 2 );
}@

This code works with 2 pages, when I have three ou four pages , it doesn't work. Do you have some others ideas ?

raven-worx

well with what reason did you adapt it?

WarriorQt

Because this code does not works with two pages
@void FindDialog::framenext()
{
layout->setCurrentIndex( layout->currentIndex() + 1 );
}

void FindDialog::frameBack ()
{
layout->setCurrentIndex( layout->currentIndex() - 1 );
}@

WarriorQt

this is all my source code can you try this. thanks

@#include <QApplication>

#include "finddialog.h"

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

FindDialog *dialog = new FindDialog;
dialog->show();

return app.exec();

}
@

WarriorQt

@#include <QtGui>

#include "finddialog.h"

FindDialog::FindDialog(QWidget *parent):QDialog(parent)
{
// Page 1
QWidget *page1 = new QWidget;

title1           =        new QLabel("FRAME_1");
afficheButton1   =        new QPushButton("BOUTON_1");
afficheButton1->setFixedSize(150,100);

QVBoxLayout *Box1 = new QVBoxLayout;
Box1->addWidget(title1);
Box1->addWidget(afficheButton1);

page1->setLayout(Box1);

// Page 2
QWidget *page2 = new QWidget;

title2           =        new QLabel("FRAME_2");
afficheButton2   =        new QPushButton("BOUTON_2");
afficheButton2->setFixedSize(150,100);

QVBoxLayout *Box2 = new QVBoxLayout;
Box2->addWidget(title2);
Box2->addWidget(afficheButton2);

page2->setLayout(Box2);

// Page 3
QWidget *page3 = new QWidget;

title3           =        new QLabel("FRAME_3");
afficheButton3   =        new QPushButton("BOUTON_3");
afficheButton2->setFixedSize(150,100);

QVBoxLayout *Box3 = new QVBoxLayout;
Box3->addWidget(title2);
Box3->addWidget(afficheButton2);

page3->setLayout(Box3);

// Ajout de page 1, Page 2 et Page 3 dans un QStackedLayout
layout = new QStackedLayout;
layout->addWidget(page1);
layout->addWidget(page2);
layout->addWidget(page3);

// Bouton permettant de passer d'une page vers une autre
buttonBack = new QPushButton("Back");
buttonNext = new QPushButton("Next");

QHBoxLayout *downBox = new QHBoxLayout;
downBox->addWidget(buttonBack);
downBox->addWidget(buttonNext);

//Ajout du QstackedLayout et des deux boutons (Next, Back) dans le
//layout principal
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addLayout(layout);
mainLayout->addLayout(downBox);

//Definition du slot permettant de passer aux pages suivantes
connect(buttonNext, SIGNAL(clicked()), this, SLOT(framenext()));
connect(buttonBack, SIGNAL(clicked()), this, SLOT(frameBack()));

//qDebug() << "Page: " << layout->currentIndex();

setLayout(mainLayout);
setWindowTitle("Boîte_Ly");
setFixedHeight(sizeHint().height());
}

// Définion du slot personnalisé
void FindDialog::framenext()
{
//layout->setCurrentIndex(1);
layout->setCurrentIndex( layout->currentIndex() + 2);

}

void FindDialog::frameBack ()
{
//layout->setCurrentIndex(0);
layout->setCurrentIndex( layout->currentIndex() - 2 );
}
@

WarriorQt

@#ifndef FINDDIALOG_H
#define FINDDIALOG_H

#include <QDialog>

class QPushButton;
class QLabel;
class QStackedLayout;

class FindDialog : public QDialog
{
Q_OBJECT

public :
  FindDialog(QWidget *parent=0);

private slots :
  void framenext        ();
  void frameBack        ();

private :
  QLabel                *title1;
  QLabel                *title2;
  QLabel                *title3;

  QPushButton           *afficheButton1;
  QPushButton           *afficheButton2;
  QPushButton           *afficheButton3;

  QPushButton           *buttonNext;
  QPushButton           *buttonBack;

  QStackedLayout        *layout;

};

#endif // FINDDIALOG_H
@

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Moving to another Page, setCurrentIndex() and QStackedLayout