//.h

#ifndef STACKDLG_H

#define STACKDLG_H

#include 

#include

#include

#include

#include

class stackdlg : public QDialog

{

    Q_OBJECT

public:

    stackdlg(QWidget *parent = 0,Qt::WindowFlags f1=0);

    ~stackdlg();

private:

    QLabel *label1;//聲明QLabel類的對象

    QLabel *label2;

    QLabel *label3;

    QTextEdit *textEdit1;//聲明QTextEdit類的對象

    QTextEdit *textEdit2;

    QTextEdit *textEdit3;

    QComboBox *comboBoxList;//聲明comboBoxList組合框

    QStackedWidget *stackLabel;

    QStackedWidget *stackText;

};

#endif // STACKDLG_H

//main.cpp

#include 

#include "stackdlg.h"

#include

int main(int argc, char *argv[])

{  QTextCodec::setCodecForTr(QTextCodec::codecForName("GB2312"));

    QTextCodec::setCodecForLocale(QTextCodec::codecForName("GB2312"));

    QApplication a(argc, argv);

    stackdlg w;

    w.show();

    return a.exec();

}

stackdlg.cpp

#include "stackdlg.h"

#include

#include

#include

stackdlg::stackdlg(QWidget *parent,Qt::WindowFlags f1)

    : QDialog(parent,f1)

{

    setWindowTitle(tr("棧窗口"));

    comboBoxList=new QComboBox(this);//創(chuàng)建一個組合框(comboBoxList)

    comboBoxList->insertItem(0,tr("窗口1"));//添加3個條目，第一個參數(shù)是條目的索引值，第二個為條目內(nèi)容

    comboBoxList->insertItem(1,tr("窗口2"));

    comboBoxList->insertItem(2,tr("窗口3"));

    label1=new QLabel(tr("這是窗口1！"));//創(chuàng)建標(biāo)簽

    label2=new QLabel(tr("這是窗口2！"));

    label3=new QLabel(tr("這是窗口3！"));

    textEdit1=new QTextEdit(tr("第一個窗口。"));//創(chuàng)建多行文本輸入框

    textEdit2=new QTextEdit(tr("第二個窗口。"));

    te xtEdit3=new QTextEdit(tr("第三個窗口。"));

     //創(chuàng)建兩個棧部件

    stackLabel=new QStackedWidget(this);

    stackLabel->addWidget(label1);

    stackLabel->addWidget(label2);

    stackLabel->addWidget(label3);

    stackText=new QStackedWidget(this);

    stackText->addWidget(textEdit1);

    stackText->addWidget(textEdit2);

    stackText->addWidget(textEdit3);

    QHBoxLayout *layoutH1=new QHBoxLayout();//水平布局管理器

    layoutH1->addStretch();

    layoutH1->addWidget(comboBoxList);

    QVBoxLayout *mainLayout=new QVBoxLayout(this);//垂直布局管理器

    mainLayout->setMargin(25);

    mainLayout->setSpacing(25);

    mainLayout->addLayout(layoutH1);//延伸因子為1

    mainLayout->addWidget(stackLabel);

    mainLayout->addWidget(stackText);

    //通過setStretchFactor設(shè)置comboBoxList、stackLabel、stackText拉伸比例1:1:3

    mainLayout->setStretchFactor(comboBoxList,1);

    mainLayout->setStretchFactor(stackLabel,1);

    mainLayout->setStretchFactor(stackText,3);

     //將comboBoxList和stackLabel進(jìn)行連接

    //單擊stackLabel彈出窗口

    connect(comboBoxList,SIGNAL(currentIndexChanged(int)),stackLabel,SLOT(setCurrentIndex(int)));

    //單擊stackText彈出窗口

    connect(stackLabel,SIGNAL(currentChanged(int)),stackText,SLOT(setCurrentIndex(int)));

}

stackdlg::~stackdlg()

{

}

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