java - SWING JTable : How do I make each row as high as it's tallest object?

Question

我有一个表，其中渲染了一些对象并且具有非固定大小(属性列表)。我希望每一行的高度与它最高的物体一样高，我想这样做。我想过做这样的事情(见下文)，但我确信有更好的事情..

public Component getTableCellRendererComponent(JTable table, Object value,
                                                 boolean isSelected,
                                                 boolean hasFocus, int row,
                                                 int column)
  {
      /*....*/

      this.setListData((Object[])value);
      int height = new Double(getPreferredSize().getHeight()).intValue();
      if (table.getRowHeight(row) < height)
          table.setRowHeight(row, height);    
      /*....*/

      return this;
  }

Answer 1

渲染器中不应该有这样的代码。相反，当您将数据加载到模型中时，请执行以下操作:

private void updateRowHeights()
{
    try
    {
        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);
        }
    }
    catch(ClassCastException e) {}
}