Qt的Splitter使用

最新推荐文章于 2025-07-07 22:37:53 发布

转载最新推荐文章于 2025-07-07 22:37:53 发布 · 1.6k 阅读

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#Qt Splitter

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本文详细介绍了如何使用Qt创建包含多个组件的复杂布局，包括垂直和水平分割器的运用，以及如何调整布局的外观和行为。

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这就是整个布局

void MainWindow::createMySplitter()
{
    leftSplitter = new QSplitter(Qt::Vertical);  //垂直布局
    leftSplitter->addWidget(ui->treeWidget);

    rightSplitter = new QSplitter(Qt::Vertical);
    rightSplitter->addWidget(ui->textEdit_1);
    rightSplitter->addWidget(ui->textEdit_2);
    rightSplitter->setStretchFactor(1, 1);   //让编号为1（ui->textEdit_1）可以拉伸，填满空余部分
    rightSplitter->setStretchFactor(2, 1);
    rightSplitter->setHandleWidth(1);

    upSplitter = new QSplitter(Qt::Horizontal, ui->frame);
    upSplitter->addWidget(leftSplitter);
    upSplitter->addWidget(rightSplitter);
    upSplitter->setStretchFactor(2, 1);                     //使用两个setStretchFactor保证了把多余的额外空间都留给textEdit
    upSplitter->setHandleWidth(1);


    downSplitter = new QSplitter(Qt::Horizontal, ui->frame_2);
    downSplitter->addWidget(ui->label);




    mainSplitter = new QSplitter(Qt::Vertical);
    mainSplitter->addWidget(upSplitter);
    mainSplitter->addWidget(downSplitter);
    mainSplitter->setStretchFactor(2, 1);

    
    //禁止分割线的拖动
//    for(int i = 0; i<mainSplitter->count();i++)
//    {
//        QSplitterHandle *handl = mainSplitter->handle(i);
//        handl->setEnabled(false);
//    }

    //禁止分割线的拖动
    QSplitterHandle *splitterHandle = mainSplitter->handle(1);
    if(splitterHandle)
    {
        //Disable the Middle Line, it can't adjust.
        splitterHandle->setDisabled(true);
    }


    mainSplitter->setHandleWidth(1);  //设置了分割线的宽度
    mainSplitter->setStyleSheet("QSplitter::handle { background-color: blue }"); //设置分界线的样式


    setCentralWidget(mainSplitter);
}

效果：