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PDF rendering with poppler libraries

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  • D Offline
    D Offline
    Dharmender
    wrote on last edited by
    #1

    Hi
    I am using the example code posted @http://doc.qt.digia.com/qq/ for Displaying PDF files with qt.
    This example works fine and rendering the pdf documents tested this in Ubuntu.

    I have cross compiled poppler library for ARM to use in a embedded control panel.
    The control panel is able to load the pdf but the font is not rendering.
    Can any one help?

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi and welcome to devnet,

      Just an educated guess but did you check that you have all needed fonts installed on your target ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • C Offline
        C Offline
        ChaitraMohan
        wrote on last edited by
        #3

        Hi,

        I am using the same code posted http://doc.qt.digia.com/qq/ for displaying PDF with Qt.

        It has compiled successfully but when I run, without displaying anything it is exiting by giving the statement as below:
        @The program has unexpectedly finished@

        Can I know the reason for this?

        Thank you.

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        • C Offline
          C Offline
          ChaitraMohan
          wrote on last edited by
          #4

          Hi,

          This is the error I get when I run in the debug mode:

          @The inferior stopped because it received a signal from the Operating System.
          Signal name : SIGABRT
          Signal meaning : Aborted
          @

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #5

            Looks like one of my message disappeared…

            Anyway, if you have the debugger running it should have stopped at the point of failure.

            Where is it ?

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • C Offline
              C Offline
              ChaitraMohan
              wrote on last edited by
              #6

              When I run debugger it gives the above error message as stated in my previous comment.

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #7

                Are you running a debug build ?

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                • C Offline
                  C Offline
                  ChaitraMohan
                  wrote on last edited by
                  #8

                  Yes I am running debug build only.

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #9

                    And you don't have a backtrace at the crash point ?

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                    • D Offline
                      D Offline
                      Dharmender
                      wrote on last edited by
                      #10

                      Hi
                      Please make the following changes.
                      void Window::openFile()
                      {

                      1. Comment the following code.
                        /*
                        QString path = QFileDialog::getOpenFileName(this, tr("Open PDF File"),
                        /lastPath/"./", tr("PDF files (*.pdf)"));
                        if (path.isEmpty())
                        return;
                        qDebug() << "open file is executing";
                        char val = getchar();
                        qDebug() << "getchar executed";
                        */
                      2. Change the path variable value to "./somedocument.pdf"
                        documentWidget->setDocument(path);

                      hope this will help.

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