Qt5

最简单的分割窗体

#include <QApplication>
#include <QLabel>
#include <QSplitter>

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

    QSplitter * mainSplitter = new QSplitter(Qt::Horizontal);
    mainSplitter->setHandleWidth(10);
     mainSplitter->setStyleSheet("QSplitter::handle { background-color: black }"); //设置分界线的样式
    QLabel *label = new QLabel(QObject::tr("TestA"));
    QLabel *label2 = new QLabel(QObject::tr("TestB"));

    mainSplitter->addWidget(label2);
    mainSplitter->addWidget(label);
    mainSplitter->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding);
    mainSplitter->show();

    return app.exec();
}

结果截图如下

竖向排列子窗口

#include <QApplication>
#include <QLabel>
#include <QSplitter>

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

    QSplitter * mainSplitter = new QSplitter(Qt::Horizontal);
    mainSplitter->setHandleWidth(10);
     mainSplitter->setStyleSheet("QSplitter::handle { background-color: black }"); //设置分界线的样式
    QLabel *label = new QLabel(QObject::tr("TestA"));
    QLabel *label2 = new QLabel(QObject::tr("TestB"));

    mainSplitter->addWidget(label2);
    mainSplitter->addWidget(label);
    mainSplitter->setOrientation(Qt::Vertical);
    mainSplitter->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding);
    mainSplitter->show();

    return app.exec();
}

结果截图如下

http://blog.csdn.net/a649518776/article/details/6633857

转

#include <QApplication>
#include <QSplitter>
#include <QTextCodec>
#include <QTextEdit>
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    //设置字体
    QFont font("ZYSong18030",12);
    a.setFont(font);
    //The QTextCodec class provides conversions between text encodings
    //Returns a pointer to the codec most suitable for this locale.On Windows, the codec will be based on a system locale.
    QTextCodec::setCodecForTr(QTextCodec::codecForLocale());
    //主splitter，以下填充text和子splitter
    //QSplitter::QSplitter ( Qt::Orientation orientation, QWidget * parent = 0 )
    QSplitter *splitterMain=new QSplitter(Qt::Horizontal,0);
    QTextEdit *textLeft=new QTextEdit(QObject::tr("Left Widget"),splitterMain);
    textLeft->setAlignment(Qt::AlignCenter);
    QSplitter *splitterRight=new QSplitter(Qt::Vertical,splitterMain);
    splitterRight->setOpaqueResize(false);
    //开始填充右边的splitter，放上两个text
    QTextEdit *textTop=new QTextEdit(QObject::tr("Right Top Widget"),splitterRight);
    textTop->setAlignment(Qt::AlignCenter);
    QTextEdit *textBottom=new QTextEdit(QObject::tr("Right Bottom Widget"),splitterRight);
    textBottom->setAlignment(Qt::AlignCenter);
    //设置主splitter
    splitterMain->setStretchFactor(1,1);
    splitterMain->setWindowTitle(QObject::tr("Splitter"));
    splitterMain->show();
    return a.exec();
}

解析：

1.QSplitter的构造方法：

QSplitter *splitterMain=new QSplitter(Qt::Horizontal,0);

第一个参数通过Qt::Horizontal 和 Qt::Vertical来设定为水平分割或垂直分割。第二个设定0代表是主窗口，无父窗口。

不过子splitter设置的

new QSplitter(Qt::Vertical,splitterMain);

代表主窗口是splitterMain。则子splitter就被添加到splitterMain中。

添加时为从左至右（或从上至下）添加;

2.添加QTextEdit控件。

QTextEdit *textLeft=new QTextEdit(QObject::tr("Left Widget"),splitterMain);

第一个参数设置文本内容，第二个参数设置主窗体。

3.设置拖动时是否实时更新

splitterRight->setOpaqueResize(false);

false为不实时更新——在拖动时候只显示一条灰色的线条，在拖动到位并释放鼠标后再显示分割条。默认为true——实时更新。

4.设定可伸缩控件：

splitterMain->setStretchFactor(1,1);

第一个参数代表控件序号，第一个序号为0.后面参数0代表不可伸缩，非0代表可伸缩。

这里设置右边的可伸缩。当拉伸整个窗口时候，左边保持原来宽度。

拉伸后，我们发现左边的宽度不变