Qt 实现可扩展对话框

实现效果:

  

  

代码

1.extension.h文件#ifndef EXTENSION_H#define EXTENSION_H#include <QApplication>#include <QPushButton>#include <QDialog>#include <QGridLayout>#include <QWidget>#include <QHBoxLayout>#include <QLabel>#include <QLineEdit>#include <QComboBox>#include <QDialogButtonBox>#include <QGridLayout>#include <QDialog>class Extension : public QDialog{    Q_OBJECTpublic:    Extension(QWidget *parent=0);    void createBaseInfo();    void createDetailInfo();public slots:    void slotExtension();private:    QWidget *baseWidget;    QWidget *detailWidget;    };#endif // EXTENSION_H

2extension.cpp文件#include "extension.h"Extension::Extension(QWidget *parent):QDialog(parent){    setWindowTitle(tr("Extension Dialog"));    createBaseInfo();    createDetailInfo();    QVBoxLayout *layout=new QVBoxLayout;    layout->addWidget(baseWidget);    layout->addWidget(detailWidget);    layout->setSizeConstraint(QLayout::SetFixedSize);    layout->setSpacing(10);    setLayout(layout);}void Extension::createBaseInfo(){    baseWidget=new QWidget;    QLabel *nameLabel = new QLabel(tr("Name:"));    QLineEdit *nameEdit = new QLineEdit;    QLabel *sexLabel = new QLabel(tr("Sex:"));    QComboBox *sexComboBox = new QComboBox;    sexComboBox->addItem("male");    sexComboBox->addItem("female");    QPushButton *okButton = new QPushButton(tr("OK"));    QPushButton *detailButton = new QPushButton(tr("Detail"));    connect(detailButton,SIGNAL(clicked()),this,SLOT(slotExtension()));    QDialogButtonBox *btnBox = new QDialogButtonBox(Qt::Vertical);    btnBox->addButton(okButton,QDialogButtonBox::ActionRole);    btnBox->addButton(detailButton,QDialogButtonBox::ActionRole);       QGridLayout *gride = new QGridLayout;    gride->addWidget(nameLabel,0,0);    gride->addWidget(nameEdit,0,1);    gride->addWidget(sexLabel,1,0);    gride->addWidget(sexComboBox,1,1);    QHBoxLayout *hbox = new QHBoxLayout;    hbox->addLayout(gride);    hbox->addStretch();    hbox->addWidget(btnBox);    baseWidget->setLayout(hbox);   }void Extension::createDetailInfo(){    detailWidget = new QWidget;    QLabel *label1 = new QLabel(tr("Age"));    QLineEdit *ageEdit = new QLineEdit;    ageEdit->setText("30");    QLabel *label2 = new QLabel(tr("Department"));    QComboBox *deptComboBox = new QComboBox;    deptComboBox->addItem(tr("dept 1"));    deptComboBox->addItem(tr("dept 2"));    deptComboBox->addItem(tr("dept 3"));    deptComboBox->addItem(tr("dept 4"));    QLabel *label3 = new QLabel(tr("email:"));    QLineEdit *edit = new QLineEdit;        QGridLayout *grid = new QGridLayout;    grid->addWidget(label1,0,0);    grid->addWidget(ageEdit,0,1);    grid->addWidget(label2,1,0);    grid->addWidget(deptComboBox,1,1);    grid->addWidget(label3,2,0);    grid->addWidget(edit,2,1);    detailWidget->setLayout(grid);       detailWidget->hide();}void Extension::slotExtension(){    if(detailWidget->isHidden())    {        detailWidget->show();    }    else    {        detailWidget->hide();    }}

3.main.cpp文件#include<QApplication>#include"extension.h"int main(int argc,char *argv[]){    QApplication app(argc,argv);    Extension exten;    exten.show();    return app.exec();}