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我需要使用 POI 向 xls-document 添加形状（特别是圆形）。所以，我写了以下代码：

private void drawLabel(HSSFSheet sheet, HSSFCell cell) {
    final short columnIndex = (short) cell.getColumnIndex();
    final int rowIndex = cell.getRowIndex();
    HSSFClientAnchor anchor = new HSSFClientAnchor(60, 60, 200, 200, columnIndex, rowIndex, columnIndex, rowIndex);
    anchor.setAnchorType(ClientAnchor.MOVE_DONT_RESIZE);
    HSSFSimpleShape shape = sheet.getDrawingPatriarch().createSimpleShape(anchor);
    shape.setShapeType(HSSFSimpleShape.OBJECT_TYPE_OVAL);
    ...
}

有用。但是，如果我尝试以编程方式更改列宽（例如sheet.setColumnWidth(0, 5 * 256);（假设已将形状添加到列索引 == 0 的单元格中）），圆形会扭曲并变成椭圆形（尽管锚的类型设置为MOVE_DONT_RESIZE）。我的方法有什么问题，有没有办法绘制一个不会与相应单元格一起调整大小的形状？

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1 回答 1

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我还没有找到这个问题的适当解决方案。但解决问题的一种方法是根据实际大小缩放形状（特别是其锚点）：

private void drawLabel(HSSFSheet sheet, HSSFCell cell) {
    final int defaultColumnWidth = 2048; // column width before resizing
    final int defaultRowHeight = 255; // row height before resizing
    final double xDistortionFactor = 1.0 * defaultColumnWidth / sheet.getColumnWidth(cell.getColumnIndex());
    final double yDistortionFactor = 1.0 * defaultRowHeight / cell.getRow().getHeight();

    final int dx1 = (int) (60 * xDistortionFactor);
    final int dy1 = (int) (60 * yDistortionFactor);
    final int dx2 = (int) (200 * xDistortionFactor);
    final int dy2 = (int) (200 * yDistortionFactor);
    final short columnIndex = (short) cell.getColumnIndex();
    final int rowIndex = cell.getRowIndex();
    final HSSFClientAnchor anchor = new HSSFClientAnchor(dx1, dy1, dx2, dy2, columnIndex, rowIndex, columnIndex, rowIndex);
    anchor.setAnchorType(ClientAnchor.MOVE_DONT_RESIZE);

    HSSFSimpleShape shape = sheet.getDrawingPatriarch().createSimpleShape(anchor);
    shape.setShapeType(HSSFSimpleShape.OBJECT_TYPE_OVAL);
    ...
}

这个解决方案并不优雅，但它确实有效。

于 2012-12-07T13:00:43.607 回答