grid.cpp

嵌入式LINUX下的自定义信号和槽、树型结构的内存管理、网格布局管理、动态改变语言的代码。

#include <QApplication>
#include <QPushButton>
#include <QWidget>
#include <QGridLayout>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QWidget window;
    QPushButton *button1 = new QPushButton("One");
    QPushButton *button2 = new QPushButton("Two");
    QPushButton *button3 = new QPushButton("Three");
    QPushButton *button4 = new QPushButton("Four");
    QPushButton *button5 = new QPushButton("Five");

    QGridLayout *layout = new QGridLayout;
    layout->addWidget(button1, 0, 0);
    layout->addWidget(button2, 0, 1);
    layout->addWidget(button3, 1, 0, 1, 2);
    layout->addWidget(button4, 2, 0);
    layout->addWidget(button5, 2, 1);

    window.setLayout(layout);
    window.show();

    return app.exec();
}