QT 利用ListWidget 和 StackedLayout 配合实现 分页 选项

#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>
#include <QtGui>

namespace Ui {
class Dialog;
}

class Dialog : public QDialog
{
Q_OBJECT

public:
explicit Dialog(QWidget *parent = 0);
~Dialog();

private:
Ui::Dialog *ui;

QListWidget *listWidget;
QStackedLayout *stackedLayout;
QHBoxLayout *mainLayout;

QLabel *label1;
QLabel *label2;
QLabel *label3;

};

#endif // DIALOG_H

#include "dialog.h"
#include "ui_dialog.h"

Dialog::Dialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::Dialog)
{
ui->setupUi(this);

setWindowTitle("test stackedlayout");
mainLayout = new QHBoxLayout;

label1 = new QLabel("label1");
label2 = new QLabel("label2");
label3 = new QLabel("label3");

listWidget = new QListWidget;
listWidget->addItem(tr("item1"));
listWidget->addItem(tr("item2"));
listWidget->addItem(tr("item3"));

stackedLayout = new QStackedLayout;
stackedLayout->addWidget(label1);
stackedLayout->addWidget(label2);
stackedLayout->addWidget(label3);

connect(listWidget, SIGNAL(currentRowChanged(int)),
stackedLayout, SLOT(setCurrentIndex(int)));
listWidget->setCurrentRow(0);

mainLayout->addWidget(listWidget);
mainLayout->addLayout(stackedLayout);

setLayout(mainLayout);
}

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