Question

我创建了一个pdf，其中有一个表，但如果字符串的长度超过那么我想使用新行。

public static void drawtable1(PDPage page, PDPageContentStream contentStream, float y, float margin, String[][] content) throws IOException {
    int rows = content.length;
    int cols = content[0].length;
    float rowHeight = 20f;
    float tableWidth = page.getMediaBox().getWidth() - margin - margin;
    float tableHeight = rowHeight * rows;
    float colWidth = tableWidth / (float)cols;
    float cellMargin = 5f;
    PDFont font1 = PDType1Font.HELVETICA_BOLD;
    PDFont font2 = PDType1Font.HELVETICA;

    //draw the rows
    float nexty = y;
    for (int i = 0; i <= rows; i++) {
        contentStream.moveTo(margin, nexty);
        contentStream.lineTo(margin + tableWidth, nexty);
        contentStream.setStrokingColor(220,220,220);
        contentStream.stroke();
        nexty -= rowHeight;
    } 

    //draw the columns
    float nextx = margin;
    for (int i = 0; i <= cols ; i++) {
        contentStream.moveTo(nextx, y);
        contentStream.lineTo(nextx, y - tableHeight);
        contentStream.setStrokingColor(220,220,220);
        contentStream.stroke();

        //     contentStream.stroke();
        if(content[0].length == 2){
            if(i==0){
                nextx += colWidth/2;
            }if(i == 1){
                nextx += colWidth + colWidth/2;
            }
        }else{
            nextx += colWidth;
        }
    }    

    //now add the text
    contentStream.setFont(PDType1Font.HELVETICA, 10);
    float textx = margin + cellMargin;
    float texty = y - 15;
    float col = tableWidth / (float)cols;

    for (int i = 0; i < content.length; i++) {
        for (int j = 0; j < content[i].length; j++) {

            String text = content[i][j];
            contentStream.beginText();
     // contentStream.setLeading(12.5f);
            contentStream.newLineAtOffset(textx, texty);
            if (j == 0 || j == 2){
                if(font1.getStringWidth(content[i][j]) > col){
                    System.out.println(content[i][j]);   
                }
                contentStream.setFont(font1, 10);
                contentStream.showText(text);
                contentStream.setFont(font2, 10);
            }else{
                contentStream.showText(text);
            }

            contentStream.endText();

            if(content[0].length == 2){
                if(j==0){
                    textx += colWidth/2;
                }
                if(j == 1){
                    textx += colWidth + colWidth/2;
                }
            }else{
                textx += colWidth;
            }
        }

        texty -= rowHeight;
        textx = margin + cellMargin;

    }
}

我尝试比较字符串和列宽的长度，但它不起作用。我不知道如何在下一行显示半字符串。

Answer 1

实际上只看到这件事对我有用，

String text = content[i][j];
List<String> strings = new ArrayList<String>();
int index = 0;
while (index < text.length()) {
    strings.add(text.substring(index, Math.min(index + 25,text.length())));
    index += 25;
}                               

for (String line: strings){
    contentStream.showText(line);
    contentStream.newLineAtOffset(0, -leading);
}

但是在这里我不知道如何增加有很多字符的行的高度。

如何在Pdfbox中的表中添加新行

1 个答案: