1

我可以打印一个完整的 JTable,但实际上我想要更多只打印 JTable 的特定部分,例如从第 10 行到第 50 行和第 70 列到第 150 列。怎么做?

4

2 回答 2

2

我也遇到过这个问题。通过在打印前隐藏列并在打印后恢复列来解决:

// get column num from settings
int num = gridSettings.getColumnsOnPage();// first <num> columns of the table will be printed   

final TableColumnModel model = table.getColumnModel();

// list of removed columns. After printing we add them back
final List<TableColumn> removed = new ArrayList<TableColumn>();

int columnCount = model.getColumnCount();

// hiding columns which are not used for printing
for(int i = num; i < columnCount; ++i){
    TableColumn col = model.getColumn(num);
    removed.add(col);
    model.removeColumn(col);
}                                                   

// printing after GUI will be updated
SwingUtilities.invokeLater(new Runnable() {
    public void run() {
        // table printing
        try {
            table.print(PrintMode.FIT_WIDTH, null, null, true, hpset, true); // here can be your printing
        } catch (PrinterException e) {
            e.printStackTrace();
        }

        // columns restoring
        for(TableColumn col : removed){
            model.addColumn(col);
        }
    }
});

要打印 JTable 的特定部分,只需稍微更改此代码即可。

于 2013-12-26T10:31:37.817 回答
1

获取所选片段的单元格边界并计算所需区域(Rectangle),定义剪辑区域以仅绘制所需区域,在可打印中使用Graphics'stranslate() 方法来移动渲染。

于 2013-02-21T13:55:37.613 回答