c++ - 如何更改 Qt qtableWidget 项目的间距

Question

我正在使用 Qt tableWidget 来显示带有列的项目列表。但是，此列表中的项目之间有很大的空间。

如何更改间距以使项目(仅文本)彼此更靠近？

示例截图:

Answer 1

可能最简单的方法是隐藏网格并根据需要的大小重新绘制它。为此，您必须创建自己的继承 QTableWidget 的类并定义自定义 paintEvent。示例代码:

void paintEvent(QPaintEvent *event)
{
    QTableWidget::paintEvent(event);
    QPainter painter(viewport());

    for (int i = 0; i < columnCount(); ++i)
    {
        int start = horizontalHeader()->sectionViewportPosition(i);
        QPoint from = QPoint(start, 0);
        QPoint to = QPoint(start, height());

        painter.drawLine(from, to);
        start += horizontalHeader()->sectionSize(i) - 10;
        from = QPoint(start, 0);
        to = QPoint(start, height());
        painter.drawLine(from, to);
    }

    for (int j = 0; j < rowCount(); ++j)
    {
        int start = verticalHeader()->sectionViewportPosition(j);
        QPoint from = QPoint(0, start);
        QPoint to = QPoint(width(), start);

        painter.drawLine(from, to);
        start += verticalHeader()->sectionSize(j) - 10;
        from = QPoint(0, start);
        to = QPoint(width(), start);
        painter.drawLine(from, to);
    }
}