Apache POI - 基于公式的条件格式 (XSSFFontFormatting) 的主题颜色

Apache POI - Theme color for formula based Conditional formatting (XSSFFontFormatting)

我正在尝试使用 poi api 根据公式创建条件格式。通过读取另一个 (template/reference) 单元格来设置字体颜色。问题是当前 api 不支持基于公式的条件的基于主题的颜色。我错过了什么吗?有什么办法可以做到这一点吗?

    public void test(XSSFCellStyle style, String complexFormula){
        ....
        XSSFConditionalFormattingRule rule = (XSSFConditionalFormattingRule )
                      sheetCF.createConditionalFormattingRule(complexFormula);
        XSSFConditionalFormattingRule (rule,style);
    }

    protected void createConditionalFormatingRules(XSSFConditionalFormattingRule rule, XSSFCellStyle style) {

        XSSFFontFormatting fontFmt = (XSSFFontFormatting) rule.createFontFormatting();
        XSSFFont font = style.getFont();

        fontFmt.setFontColorIndex(font.getXSSFColor());  // BROKEN -- this doe not work for theme color

        fontFmt.setFontHeight(font.getFontHeight());
        fontFmt.setUnderlineType(font.getUnderline());
        fontFmt.setFontStyle(font.getItalic(), font.getBold());
        fontFmt.setEscapementType(FontFormatting.SS_NONE);
    }

以上,fontFmt.setFontColorIndex(font.getXSSFColor());不适用于主题色。它适用于标准颜色。

poi-ooxml-4.1.0

感谢您调查我的问题!!

XSSFFontFormatting.setFontColor(颜色)中存在错误。它只设置 RGB 值而不设置 Tint 值。

我通过添加以下代码来设置色调解决了这个问题。

        XSSFColor color = font.getXSSFColor();
        if(color != null) {
            fontFmt.setFontColor(color);
            //Themed color is not handed properly by poi. Hence have to handle it below.
            if(color.isThemed()) {
                CTFont ctFont = (CTFont) getFieldValWithReflection(fontFmt,"_font");
                if(ctFont != null && ctFont.sizeOfColorArray()>0){
                    CTColor c = ctFont.getColorArray(0);
                    if(color.hasTint())
                        c.setTint(font.getXSSFColor().getTint());
                    if(color.isIndexed())
                        c.setIndexed(color.getIndexed());
                }
            }
        }

    /**
     * Helper for the very common case of having to get underlying XML data.
     */
    private Object getFieldValWithReflection(Object owner, String fieldName) {
        Field f = null;
        Object val = null;
        try {
            f = owner.getClass().getDeclaredField(fieldName);
            f.setAccessible(true);

            val = f.get(owner);
            return val;

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (f != null) {
                f.setAccessible(false);
            }
        }

        return null;
    }