我正在尝试使用 iTextSharp 将多行文本块居中。我认为使用 ColumnText 可以解决问题,但是我在同时进行中心对齐和正确换行时遇到了一些麻烦。
这是一些代码,显示了我正在尝试的两种方法:
private void PrintLocationAddress(PdfContentByte Canvas, string Address)
{
//define the regions for our ColumnText objects
Rectangle rect1 = new Rectangle(150f, 300, 350f, 450f);
Rectangle rect2 = new Rectangle(150f, 50f, 350f, 200f);
//outline the rectangles so we can visualize placement of the ColumnText
Canvas.Rectangle(rect1.Left, rect1.Bottom, rect1.Width, rect1.Height);
Canvas.Rectangle(rect2.Left, rect2.Bottom, rect2.Width, rect2.Height);
Canvas.SetColorStroke(BaseColor.CYAN);
Canvas.Stroke();
//define the text and style
Chunk c = new Chunk(Address, new Font(Font.FontFamily.COURIER, 12, Font.NORMAL, BaseColor.MAGENTA));
c.SetTextRenderMode(PdfContentByte.TEXT_RENDER_MODE_FILL, 0, BaseColor.PINK);
Phrase LongText = new Phrase(c);
//this text is centered, but will wrap onto itself on the same line
ColumnText column1 = new ColumnText(Canvas);
column1.SetSimpleColumn(LongText, rect1.Left, rect1.Bottom, rect1.Right, rect1.Top, 0, PdfContentByte.ALIGN_CENTER);
column1.Go();
//this text will wrap, but how to center it?!
ColumnText column2 = new ColumnText(Canvas);
column2.SetSimpleColumn(rect2);
column2.SetText(LongText);
column2.Go();
}
您可以查看上述代码的输出:http: //imgur.com/Ty3oD7w