extension.cpp

Linux窗口程序设计__Qt4精彩实例分析上面的源代码第二部分.以循序渐进的方式进行源代码,包括Qt4下面的图形与图画对话框QMainWindow的源代码.

#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(tr("male"));
    sexComboBox->addItem(tr("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 *grid = new QGridLayout;
    grid->addWidget(nameLabel,0,0);
    grid->addWidget(nameEdit,0,1);
    grid->addWidget(sexLabel,1,0);
    grid->addWidget(sexComboBox,1,1);

    QHBoxLayout *hbox = new QHBoxLayout;
    hbox->addLayout(grid);
    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();
}