ColumnText.ShowTextAligned（）在换行后切断文本 [英] ColumnText.ShowTextAligned() cuts off text after linebreak

问题描述

我有以下代码使用iTextSharp将文本打印到PDF文档：

I have the following code to print a text onto a PDF document using iTextSharp:

canvas = stamper.GetOverContent(i)
watermarkFont = iTextSharp.text.pdf.BaseFont.CreateFont(iTextSharp.text.pdf.BaseFont.HELVETICA, iTextSharp.text.pdf.BaseFont.CP1252, iTextSharp.text.pdf.BaseFont.NOT_EMBEDDED)
watermarkFontColor = iTextSharp.text.BaseColor.RED
canvas.SetFontAndSize(watermarkFont, 11)
canvas.SetColorFill(watermarkFontColor)

Dim sText As String = "Line1" & vbCrLf & "Line2"
Dim nPhrase As New Phrase(sText)

ColumnText.ShowTextAligned(canvas, Element.ALIGN_TOP, nPhrase, 0, 50, 0)

但是，只打印第一行（Line1），第二行（Line2）不打印。

However, only the first line ("Line1") is printed, the second line ("Line2") isn't.

我是否必须通过任何标志才能生效？

Do I have to pass any flags to make that work?

推荐答案

， ShowTextAligned（）方法只能用于绘制单行。如果要绘制两行，则有两个选项：

As documented, the ShowTextAligned() method can only be used to draw a single line. If you want to draw two lines, you have two options:

选项1：使用该方法两次：

ColumnText.ShowTextAligned(canvas, Element.ALIGN_TOP, new Phrase("line 1"), 0, 50, 0)
ColumnText.ShowTextAligned(canvas, Element.ALIGN_TOP, new Phrase("line 2"), 0, 25, 0)

选项2：使用 ColumnText 以不同的方式：

ColumnText ct = new ColumnText(canvas);
ct.SetSimpleColumn(rect);
ct.AddElement(new Paragraph("line 1"));
ct.AddElement(new Paragraph("line 2"));
ct.Go();

在此代码段中， rect 是键入矩形。它定义了要添加文本的区域。请参阅如何使用itextsharp在PdfContentByte矩形中添加文本？​​

In this code snippet, rect is of type Rectangle. It defines the area where you want to add the text. See How to add text in PdfContentByte rectangle using itextsharp?

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