Qt 分页标题打印

时间：2023-03-08 16:39:58
void ItemSplitter::printpdf(const QString& fileName){

    QPrinter printer_html(QPrinter::ScreenResolution);

    printer_html.setPageSize(QPrinter::A4);

    printer_html.setOutputFormat(QPrinter::PdfFormat);

    printer_html.setOutputFileName(fileName);

    QPainter painter( &printer_html );

    QSizeF pageSize(printer_html.pageRect().width(),printer_html.pageRect().height());

    TreeItem * treeItem = rootItem;

    QString logo = ("");

    QString date = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss");

    QString htmltable[],htmlbody[],htmlfront[],htmltext;

    htmlbody[] +="<html>";

    htmlbody[] +="<body>";

    htmlbody[] +="</body>";

    htmlbody[] +="</html>";

    htmltable[] +="<div><table width=\"85%\" align=\"center\">";

    htmltable[] +="</table></div>";

    htmlfront[] +=htmltable[];

    htmlfront[] +="<tr><td><h1>"+QString("Parameter Report") + "</h1></td><td align=\"right\"><h1>"+ logo +"</h1></td> </tr>";

    htmlfront[] +="<tr><td><h3>"+ date + "     Page ";

    htmlfront[] +="</h3></td><td align=\"right\" ><img src = \"logoprint.png\"></td></tr>";

    htmlfront[] +="<tr><td colspan = \"2\"><hr/></td></tr>";

    htmlfront[] +=htmltable[];

    int pagenum = ;

    int counter =  ;

    htmltext.clear();

    htmltext+=htmlfront[];

    htmltext+=QString::number(++pagenum);

    htmltext+=htmlfront[];

    htmltext += htmlbody[];

    htmltext += htmltable[];

    for( int i =  ; i < treeItem->childCount() ; ++i)

    {

         TreeItem* it1 = treeItem->child(i);

         htmltext +="<tr>";

         htmltext += "<td colspan = \"4\">";

         htmltext += "<strong>";

         htmltext+= "Collumn " + it1->data(E_COORDINATE).toString();

         htmltext+= ": " + it1->data(E_NAME).toString();

         htmltext += "</strong>";

         htmltext += "</td>";

         htmltext +="</tr>";

         counter += ;

         for( int i =  ; i < it1->childCount() ; ++i ,++counter)

         {

              TreeItem* it2 = it1->child(i);

              htmltext +="<tr>";

              htmltext +="<td>";

              htmltext+= it2->data(E_COORDINATE).toString();

              htmltext +="</td>";

              htmltext +="<td>";

              htmltext+= it2->data(E_NAME).toString();

              htmltext +="</td>";

              htmltext +="<td>";

              htmltext+= it2->data(E_VALUE).toString();

              htmltext +="</td>";

              htmltext +="<td align=\"right\">";

              htmltext+= it2->data(E_UNIT).toString();

              htmltext +="</td>";

              htmltext +="</tr>";

         }

         htmltext +="<tr>";

         htmltext += "<td colspan = \"4\">";

         htmltext += "</td>";

         htmltext +="</tr>";

         int nextcount;

         if(i +  < treeItem->childCount()){

            it1 = treeItem->child(i + );

            nextcount = it1->childCount();

         }

         else

         {

            nextcount = ;

         }

         if(counter + nextcount +  >  )

         {

            counter =  ;

            htmltext+=htmltable[];

         // htmltext+="<div style=\"page-break-after:auto !important;\"></div>";

            QTextDocument text_document;

            text_document.setHtml(htmltext);

            text_document.setPageSize(pageSize);

            text_document.drawContents(&painter);

            printer_html.newPage();

            htmltext.clear();

            htmltext+=htmlfront[];

            htmltext+=QString::number(++pagenum);

            htmltext+=htmlfront[];

            htmltext +=htmltable[];

        }

    }

   // qDebug() << html;

    if( counter >  )

    {

         htmltext += htmlbody[];

         QTextDocument text_document;

         text_document.setHtml(htmltext);

         text_document.setPageSize(pageSize);

         text_document.drawContents(&painter);

         qDebug() <<" page count:" << text_document.pageCount();

    }

}

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