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  1. Qt
  2. QTBUG-29843

QPrintPreviewDialog + QWebView print wrongly

    XMLWordPrintable

Details

    • Bug
    • Resolution: Duplicate
    • Not Evaluated
    • None
    • 5.0.1
    • GUI: Printing, WebKit
    • None
    • It happen both on Linux and Windows

    Description

      When use QPrintPreviewDialog it shows wrongly painted webpage content (wrong layouts, buttons without text, page cutted and so one), the problem is somethere related to QPicture pages in QPrinter. Try to print almost any page webpage (for example wikipedia) to see the problem (or see attachment).

      I found a way to fix this, but on qtwebkit side, by making QPicture for each page and draw it in QPrinter painter then. The following changes in QtWebkit code (qwebframe.cpp) fixes that wrong printing:

      @@ -879,7 +881,17 @@

      printer->printerState() == QPrinter::Error) { return; }
      • printContext.spoolPage(page - 1, pageRect.width());
        +
        + QPicture pagePicture;
        + QPainter pagePainter;
        + pagePainter.begin(&pagePicture);
        + pagePainter.setRenderHints(QPainter::Antialiasing
      		QPainter::TextAntialiasing QPainter::SmoothPixmapTransform QPainter::HighQualityAntialiasing);
      + pagePainter.scale(zoomFactorX, zoomFactorY);
      + QtPrintContext pagePrintContext(&pagePainter, pageRect, d);
      + pagePrintContext.spoolPage(page - 1, pageRect.width());
      + pagePainter.end();
      + painter.drawPicture(0, 0, pagePicture);
      +
      if (j < pageCopies - 1)
      printer->newPage();
      }

      Attachments

        1. qprintpreview_broken.png
          158 kB
          Mozhaev Grigory
        2. qprintpreview_fixed.png
          196 kB
          Mozhaev Grigory

        Issue Links

          is replaced by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-30621 Text is cut off at the right margin when printing from QWebView

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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            People

              mibrunin Michael Bruning
              zcrendel Mozhaev Grigory
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              Dates

                Created:
                Updated:
                Resolved:

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