我正在生成 html 报告QTextDocument，我的问题是它应该在自己的页面上打印每个表格，但它没有。我试图一起使用QPainter，QTextDocument::drawContents()但这使它只显示第一页。另一种尝试是插入 adiv并将其样式设置为 p，age-break-after:auto即使它受QTextDocumentWeb 引擎支持，但这也不起作用。
void SemesterResultsReport::printDivisionStudentsNotes() {
QMap<int, int> divisionsList = SemesterResultsReport::getSelectedDivisions();
QPrinter *printer = new QPrinter(QPrinter::ScreenResolution);
printer->setFullPage(true);
printer->setResolution(90);
printer->setPaperSize(QPrinter::A4);
printer->setOrientation(QPrinter::Landscape);
printer->setPageMargins(5, 5, 5, 5, QPrinter::Millimeter);
/*printer->setOutputFormat(QPrinter::PdfFormat);
printer->setOutputFileName("sdf.pdf");*/
QPrintPreviewDialog *dlg = new QPrintPreviewDialog(printer, this);
connect(dlg, SIGNAL(paintRequested(QPrinter *)), this, SLOT(printOrder(QPrinter *)));
dlg->exec();
}
void SemesterResultsReport::printOrder(QPrinter *printer) {
QString strStream;
QTextStream out(&strStream);
QSqlQuery studentInfo, studentNotes;
QSqlRecord studentInfoRec, studentNotesRec;
QMap<int, int> selectedDivisions = SemesterResultsReport::getSelectedDivisions();
QMap<int, int>::const_iterator divisionId;
QTextDocument *document = new QTextDocument();
QTextCursor cursor(document);
QTextOption options;
options.setTextDirection(Qt::RightToLeft);
QSizeF paperSize;
paperSize.setWidth(printer->width());
paperSize.setHeight(printer->height());
document->setDefaultTextOption(options);
document->setPageSize(paperSize);
int mat_div = 0;
int level = 0;
int semester = ui.semestersList->currentText().toInt();
int school_year = 2015;
int numMaterials = 0;
// Report
out << "<!DOCTYPE html>"
<< "<html>\n"
<< "<head>"
<< "<title>ff</title>"
<< "<meta http-equiv=\"Content-Type\" content =\"text/html;charset=utf-8\" >"
<< "<style type=\"text/css\"> "
<< " html, body { margin: 5px; direction: rtl; width: 100% !important; align: right !important; float: right !important; }"
<< " *, p { font-family: \"Times New Roman\"; font-size: 16px; }"
<< " img { display: block; margin: 0 auto; }"
<< " p.title { font-weight: bold; font-size: 22px; align: center !important; }"
<< " table { border: 1; border-collapse: collapse; page-break-after:auto !important; width: 100% !important; align: right !important; float: right !important; }"
<< " th, td { border: 1px solid #000; padding: 0; align: center; page-break-inside:avoid; page-break-after:auto; }"
<< " tr { page-break-inside:avoid; page-break-after:auto !important; }"
<< " thead { display:table-header-group; }"
<< " tfoot { display:table-footer-group; }"
<< " .pagebreak { page-break-after:auto !important; } "
<< "</style>"
<< "</head>"
<< "<body>";
for (divisionId = selectedDivisions.constBegin(); divisionId != selectedDivisions.constEnd(); ++divisionId) {
mat_div = divisionId.key();
level = divisionId.value();
numMaterials = 0;
// Report header, get division materials to set as header
QStringList divisionMaterialsNames = SemesterResultsReport::getDivisionMaterialsNames(mat_div, level, school_year);
out << "<table float=\"right\" border=1 cellspacing=0 cellpadding=2>";
numMaterials = divisionMaterialsNames.size();
out << "<thead><tr bgcolor=#f0f0f0>";
for (int i = numMaterials - 1; i > -1; --i) {
out << "<th>" + divisionMaterialsNames[i] + "</th>";
}
out << "<th>" + QString("الإسم") + "</th>"
<< "<th>" + QString("اللقب") + "</th>"
<< "<th>" + QString("الرقم التسلسلي") + "</th>"
<< "</tr></thead>";
// Echo student info plus materials notes
QString fullName = ", fname, lname";
QString infoQuery = "SELECT Student.mat_stud as matStud" + fullName + " FROM Student, Class, Division WHERE Class.mat_div = Division.mat_div AND Class.mat_class = Student.mat_class AND school_year = " + QString::number(school_year) + " AND Class.level = " + QString::number(level) + " AND Division.mat_div = " + QString::number(mat_div);
studentInfo.exec(infoQuery);
studentInfoRec = studentInfo.record();
fullName.clear();
infoQuery = "SELECT Student.mat_stud as matStud FROM Student, Class, Division WHERE Class.mat_div = Division.mat_div AND Class.mat_class = Student.mat_class AND school_year = " + QString::number(school_year) + " AND Class.level = " + QString::number(level) + " AND Division.mat_div = " + QString::number(mat_div);
QString notesQuery = "SELECT materials_notes FROM Notes WHERE mat_stud IN (" + infoQuery + ") AND school_year = " + QString::number(school_year) + " AND level = " + QString::number(level) + " AND mat_div = " + QString::number(mat_div) + " AND semester = " + QString::number(semester);
studentNotes.exec(notesQuery);
studentNotesRec = studentNotes.record();
QStringList studentNotesList;
while (studentInfo.next()) {
out << "<tr>";
studentNotes.next();
studentNotesList = studentNotes.value(studentNotesRec.indexOf("materials_notes")).toString().split(",");
for (int i = 0; i < numMaterials; ++i) {
out << "<th>" + studentNotesList[i] + "</th>";
}
out << " <th>" + studentInfo.value(studentInfoRec.indexOf("lname")).toString() + "</th>"
<< " <th>" + studentInfo.value(studentInfoRec.indexOf("fname")).toString() + "</th>"
<< " <th>" + studentInfo.value(studentInfoRec.indexOf("matStud")).toString() + "</th>";
out << "</tr>";
}
// Close table tag, and insert new page, but it doesn't work
out << "</table><div style=\"page-break-after:auto !important;\"></div>";
}
// Finish report
out << "</body>"
<< "</html>";
/*
* Prepare QTextDocument
*/
document->setHtml(strStream);
document->print(printer);
// this makes only the first page printed
/*QPainter painter;
painter.begin(printer);
document->drawContents(&painter, printer->pageRect());
painter.end();*/
}