带有滚动区域和网格布局的 qdialog答案

【问题标题】：qdialog with scrollarea and gridlayout带有滚动区域和网格布局的 qdialog
【发布时间】：2011-07-25 20:32:31
【问题描述】：

我有一个 QDialog，我想在 10 x 5 的网格中显示 50 个 QComboBoxes。由于我的对话框无法容纳这么多组合框，所以我想使用滚动。

这是我尝试过的，但这对我不起作用。使用这个解决方案，我是否朝着正确的方向前进？

// setup scroll area
QScrollArea *scrollArea = new QScrollArea(this);
scrollArea->setWidgetResizable(true);

// setup grid layout
QRect rect;
rect.setX(0);
rect.setY(0);
rect.setWidth(1920);
rect.setHeight(1080);

QGridLayout *gridLayout = new QGridLayout;
gridLayout->setGeometry(rect);

// add servers to scroll area
QComboBox *cmbxServer;
int row = 0;
int col = 0;
for (col = 0; col < 10; col++)
{
    gridLayout->setColumnMinimumWidth(col, 150);
    gridLayout->setColumnStretch(col, 0);
}

for (row = 0; row < 5; row++)
{
    for (col = 0; col < 10; col++)
    {
        cmbxServer = new QComboBox(this);
        cmbxServer->setGeometry(0, 0, 150, 30);
        cmbxServer->addItem("Item 1");
        cmbxServer->addItem("Item 2");
        cmbxServer->addItem("Item 3");
        gridLayout->addWidget(cmbxServer, row, col);
    }
}

gridLayout->addWidget(scrollArea);

感谢所有帮助多蒂瓦拉

【问题讨论】：

标签： qt qdialog

【解决方案1】：

是的，您正朝着正确的方向前进。执行以下操作

//Create and populate your layout
QGridLayout *gridLayout = new QGridLayout;

//Create a widget and set its layout as your new layout created above
QWidget *viewport = new QWidget;
viewport->setLayout(gridLayout );

//Add the viewport to the scroll area
QScrollArea *scrollArea = new QScrollArea;
scrollArea->setWidget(viewport);

//Add the scroll area to your main window's layout
mainLayout->addWidget(scrollArea);

【讨论】：