自动调整 JTable 中的行高 [英] Auto adjust the height of rows in a JTable

问题描述

在 JTable 中，如何让某些行自动增加高度以显示其中的完整多行文本?这是目前的显示方式:

In a JTable, how can I make some rows automatically increase height to show the complete multiline text inside? This is how it is displayed at the moment:

我不想为所有行设置高度，而只想为具有多行文本的行设置高度.

I do not want to set the height for all rows, but only for the ones which have multiline text.

推荐答案

确定行高的唯一方法是渲染每个单元格以确定渲染高度.在您的表格填充数据后，您可以执行以下操作:

The only way to know the row height for sure is to render each cell to determine the rendered height. After your table is populated with data you can do:

private void updateRowHeights()
{
    for (int row = 0; row < table.getRowCount(); row++)
    {
        int rowHeight = table.getRowHeight();

        for (int column = 0; column < table.getColumnCount(); column++)
        {
            Component comp = table.prepareRenderer(table.getCellRenderer(row, column), row, column);
            rowHeight = Math.max(rowHeight, comp.getPreferredSize().height);
        }

        table.setRowHeight(row, rowHeight);
    }
}

如果只有第一列可以包含多行，您可以仅针对该列优化上述代码.

If only the first column can contain multiple line you can optimize the above code for that column only.

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