从模板创建用于在Qt中打印的PDF文档

Question

当用户在对话框窗口(文档标题,发件人姓名和地址等)中插入数据时,我编写了一个应用程序,然后我的应用程序应该从该用户数据生成pdf文件.

PDF文件应该有定义的布局,如下所示:

我试图这样做,QPdfWriter但在pdf中对齐文本时遇到问题.这是我的代码:

#include <QApplication>
#include <QtCore>
#include <QPrinter>
#include <QPdfWriter>
#include <QPainter>

QString currDate()
{
    QDate date = QDate::currentDate();
    return date.toString("dd.MM.yyyy");
}

void pdf(QString filename)
{
    QPdfWriter writer(filename);
    writer.setPageSize(QPagedPaintDevice::A4);
    writer.setPageMargins(QMargins(30, 30, 30, 30));

    QPainter painter(&writer);
    painter.setPen(Qt::black);
    painter.setFont(QFont("Times", 10));

    QRect r = painter.viewport();

    QString citydate = "City, ";
    citydate += currDate();

    painter.drawText(r, Qt::AlignRight, citydate);


QString sender = "COMPANY XYZ\n";
sender += "Random Street 12/314A\n";
sender += "123-1232 City\n";

painter.drawText(r, Qt::AlignLeft, sender);
    painter.end();
}


int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    pdf("example1.pdf");

    return a.exec();
}

打印到pdf的日期在左侧,但是:

1. 我有进一步文本的问题 - 如何将画家"移动"到不同的位置,打印页面内的发件人姓名,文档标题和文档内容(translate画家的方法是否足够,还是可以更简单？)
2. 我不知道如何处理分页符,以防文档内容很长(将在2页或更多页上传播)

谢谢

编辑

我也试过这种QTextDocument方法,但很难写出任何文档,几乎任何网上都有例子.我只想到这个:

void pdf(QString filename)
{
    QPrinter printer(QPrinter::PrinterResolution);
    printer.setOutputFormat(QPrinter::PdfFormat);
    printer.setPaperSize(QPrinter::A4);
    printer.setOutputFileName(filename);
    printer.setPageMargins(QMarginsF(30, 30, 30, 30));

    QFont headerFont("Times New Roman", 8);
    QFont titleFont("Times New Roman", 14, QFont::Bold);

    QTextCharFormat txtformat = QTextCharFormat();


    QTextDocument doc;
    doc.setPageSize(printer.pageRect().size());

    QTextCursor* cursor = new QTextCursor(&doc);

    txtformat.setFont(headerFont);
    cursor->insertText("Company XYZ", txtformat);

    cursor->movePosition(QTextCursor::Right && QTextCursor::EndOfLine, QTextCursor::KeepAnchor, 1000);
    cursor->insertText(currDate(), txtformat);

    doc.print(&printer);
}

Answer 1

有几种方法可以在Qt中创建PDF文档.你已经提到了其中两个.我建议对QTextDocument方法进行一些改进.QTextDocument您可以从HTML格式的文本创建它,而不是手动编写.

QString html =
"<div align=right>"
   "City, 11/11/2015"
"</div>"
"<div align=left>"
   "Sender Name<br>"
   "street 34/56A<br>"
   "121-43 city"
"</div>"
"<h1 align=center>DOCUMENT TITLE</h1>"
"<p align=justify>"
   "document content document content document content document content document content document content document content document content document content document content "
   "document content document content document content document content document content document content document content document content document content document content "
"</p>"
"<div align=right>sincerly</div>";

QTextDocument document;
document.setHtml(html);

QPrinter printer(QPrinter::PrinterResolution);
printer.setOutputFormat(QPrinter::PdfFormat);
printer.setPaperSize(QPrinter::A4);
printer.setOutputFileName("/tmp/test.pdf");
printer.setPageMargins(QMarginsF(15, 15, 15, 15));

document.print(&printer);

警告:QTextDocument支持HTML 4标记的有限子集.