iText7：如何获取段落的实际宽度

Question

在添加到文档之前，我需要知道段落的宽度（磅）。我在这里搜索并找到了关于段落高度的 Alexey 回答。所以我用宽度做了它，但它不起作用。无论段落多长，始终 return 矩形的宽度。我试过这段代码：

private float getRealParagraphWidth(Document doc, Paragraph paragraph) {
  // Create renderer tree
  IRenderer paragraphRenderer = paragraph.createRendererSubTree();
  // Do not forget setParent(). Set the dimensions of the viewport as needed
  LayoutResult result = paragraphRenderer.setParent(doc.getRenderer()).
        layout(new LayoutContext(new LayoutArea(1, new Rectangle(1000, 100))));
  // LayoutResult#getOccupiedArea() contains the information you need
  return result.getOccupiedArea().getBBox().getWidth();
}

所以，我的问题是，如果这段代码适用于高度，但不适用于宽度，那么它有什么问题？

Answer 1

我的一个朋友解决了它。代码的最后一行应该是这一行：

 private float getRealParagraphWidth(Document doc, Paragraph paragraph) {
    // Create renderer tree
    IRenderer paragraphRenderer = paragraph.createRendererSubTree();
    // Do not forget setParent(). Set the dimensions of the viewport as needed
    LayoutResult result = paragraphRenderer.setParent(doc.getRenderer()).
            layout(new LayoutContext(new LayoutArea(1, new Rectangle(1000, 100))));
    // LayoutResult#getOccupiedArea() contains the information you need
    //return result.getOccupiedArea().getBBox().getWidth();
    return ((ParagraphRenderer) paragraphRenderer).getMinMaxWidth().getMaxWidth();
 }

结果正确。

iText7：如何获取段落的实际宽度

iText7: How to get the real width of a Paragraph

java

itext

width

paragraph

itext7