文本导出到pdf文件

   程序中数据导出是经常有的需求，今天学习把文本导出到pdf文件。主要是用QPrinter，QPainter

TextEditToPdf::TextEditToPdf(QWidget *parent, Qt::WFlags flags)
    : QDialog(parent, flags)
{
    ui.setupUi(this);
    int ret = connect(ui.m_pExportBtn,SIGNAL(clicked()),this,SLOT(exportSlot()));
}

TextEditToPdf::~TextEditToPdf()
{

}

void TextEditToPdf::exportSlot()
{

    QTextDocument  textDocument;
    QPrinter printer(QPrinter::ScreenResolution);
    printer.setPaperSize(QPrinter::A4);
    printer.setPageMargins(30,30,30,30,QPrinter::DevicePixel);
    printer.setOutputFormat(QPrinter::PdfFormat);
    printer.setOutputFileName(QString("11") + ".pdf");
    QPainter painter( &printer );
    QFont font;
    font.setPixelSize(15);
    painter.setFont(font);
    QTextOption textOption( Qt::AlignCenter);
    QPen pen;
    pen.setColor(Qt::black);
    pen.setWidth(1);
    painter.setPen(pen);

    int paperWidth = printer.width();
    int paperHeigth = printer.height();

    painter.drawText( QRect(QPoint( 30,30),QPoint(paperWidth - 30,paperHeigth- 20)),ui.m_pTextEdit->toPlainText (),textOption);
    textDocument.print(&printer);

}

http://blog.csdn.net/hai200501019/article/details/37576715