From Forum Nokia Wiki

ID	...	Creation date	12 January 2009
Platform	S60 3rd Edition FP1, S60 3rd Edition FP2, S60 5th Edition	Tested on devices	Emulator
Category	Qt for Symbian	Subcategory	Layout

Keywords (APIs, classes, methods, functions): QStackedLayout

Overview

This code snippet demonstrates how to use stacked layout in Qt for S60.The QStackedLayout class provides a stack of widgets where only one widget is visible at a time.

Preconditions

• Download and Install latest version Qt for Symbian - Installation packages which has links on how to install the latest version

Various Function

• This property determines the way visibility of child widgets are handled.

stackedLayout->setStackingMode(QStackedLayout::StackAll);

Source File

#include "stacked.h"
 
stacked::stacked(QWidget *parent)
    : QWidget(parent)
{
	 firstPageWidget = new QWidget(this);
     secondPageWidget = new QWidget(this);
     thirdPageWidget = new QWidget(this);
     label1 = new QLabel("page1",this);
     label2 = new QLabel("page2",this);
     label3 = new QLabel("page3",this);
     Layout1 = new QVBoxLayout(this);
     Layout2 = new QVBoxLayout(this);
     Layout3 = new QVBoxLayout(this);
     Layout1->addWidget(label1);
     Layout2->addWidget(label2);
     Layout3->addWidget(label3);
     firstPageWidget ->setLayout(Layout1);
     secondPageWidget ->setLayout(Layout2);
     thirdPageWidget ->setLayout(Layout3);
     stackedLayout = new QStackedLayout;
     stackedLayout->addWidget(firstPageWidget);
     stackedLayout->addWidget(secondPageWidget);
     stackedLayout->addWidget(thirdPageWidget);
 
     mainLayout = new QVBoxLayout;
     pageComboBox = new QComboBox;
     pageComboBox->addItem(tr("Page 1"));
     pageComboBox->addItem(tr("Page 2"));
     pageComboBox->addItem(tr("Page 3"));
     connect(pageComboBox, SIGNAL(activated(int)),stackedLayout, SLOT(setCurrentIndex(int)));
     mainLayout->addWidget(pageComboBox);
     mainLayout->addLayout(stackedLayout);
     setLayout(mainLayout);	
 
}
 
stacked::~stacked()
{
 // No need to delete any object that has a parent which is properly deleted.
 
}

Header file

#ifndef STACKED_H
#define STACKED_H
#include <QLabel>
#include <QtGui/QWidget>
#include "ui_stacked.h"
#include <QVBoxLayout>
#include <QStackedLayout>
#include <QComboBox>
class stacked : public QWidget
{
    Q_OBJECT
 
public:
	stacked(QWidget *parent = 0);
    ~stacked();
 
private:
	QLabel* label1;
	QLabel* label2;
	QLabel* label3;
	QWidget* firstPageWidget;
	QWidget* secondPageWidget;
	QWidget* thirdPageWidget;
	QComboBox* pageComboBox;
	QStackedLayout* stackedLayout;
    QVBoxLayout* mainLayout;
    QVBoxLayout* Layout1;
    QVBoxLayout* Layout2;
    QVBoxLayout* Layout3;
 
};
 
#endif // STACKED_H

Discription

• In this example three windows are created and they are arranged in a stack. However only one window at a time is visible. A combobox is used to control the display. By changing the value in combobox, the visible window can also be changed.

Screenshots