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Create and write into a PDF File

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  • D drich

    @mrjj
    thanks
    I still having error.
    This is my code
    void MainWindow::on_pushButton_createpdf_clicked()
    {
    QPrintPreviewDialog dialog;
    QPainter painter(this);
    connect(&dialog, SIGNAL(paintRequested(QPrinter*)), this, SLOT(print(QPrinter*)));
    dialog.exec();
    painter.setPen(Qt::black);
    painter.setFont(QFont("Arial", 30));
    painter.drawText(rect(), Qt::AlignCenter, "Technological University of the Philipines - Manila");
    painter.end();
    painter.drawPixmap (C:\User\Downloads\logo.png);
    }

    artwawA Offline
    artwawA Offline
    artwaw
    wrote on last edited by
    #11

    @drich Hi,
    what kind of an error?
    Have you read the QPainter documentation?

    For more information please re-read.

    Kind Regards,
    Artur

    D 1 Reply Last reply
    1
    • D drich

      @mrjj
      thanks
      I still having error.
      This is my code
      void MainWindow::on_pushButton_createpdf_clicked()
      {
      QPrintPreviewDialog dialog;
      QPainter painter(this);
      connect(&dialog, SIGNAL(paintRequested(QPrinter*)), this, SLOT(print(QPrinter*)));
      dialog.exec();
      painter.setPen(Qt::black);
      painter.setFont(QFont("Arial", 30));
      painter.drawText(rect(), Qt::AlignCenter, "Technological University of the Philipines - Manila");
      painter.end();
      painter.drawPixmap (C:\User\Downloads\logo.png);
      }

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #12

      @drich said in Create and write into a PDF File:

      painter.end();
      painter.drawPixmap (C:\User\Downloads\logo.png);

      I guess

      painter.end();
      

      should be last line and

      painter.drawPixmap (C:\User\Downloads\logo.png);
      

      is not valid C++. Should be:

      painter.drawPixmap ("C:/User/Downloads/logo.png");

      https://forum.qt.io/topic/113070/qt-code-of-conduct

      D 1 Reply Last reply
      0
      • jsulmJ jsulm

        @drich said in Create and write into a PDF File:

        painter.end();
        painter.drawPixmap (C:\User\Downloads\logo.png);

        I guess

        painter.end();
        

        should be last line and

        painter.drawPixmap (C:\User\Downloads\logo.png);
        

        is not valid C++. Should be:

        painter.drawPixmap ("C:/User/Downloads/logo.png");
        D Offline
        D Offline
        drich
        wrote on last edited by
        #13

        @jsulm ahh okie thanks. I try it.

        1 Reply Last reply
        0
        • artwawA artwaw

          @drich Hi,
          what kind of an error?
          Have you read the QPainter documentation?

          D Offline
          D Offline
          drich
          wrote on last edited by
          #14

          @artwaw it says error: no matching function for call to 'QPainter::drawPixmap(const char [52])'

          artwawA 1 Reply Last reply
          0
          • D drich

            @artwaw it says error: no matching function for call to 'QPainter::drawPixmap(const char [52])'

            artwawA Offline
            artwawA Offline
            artwaw
            wrote on last edited by
            #15

            @drich That's the problem @jsulm addressed in his reply.

            For more information please re-read.

            Kind Regards,
            Artur

            D 2 Replies Last reply
            0
            • artwawA artwaw

              @drich That's the problem @jsulm addressed in his reply.

              D Offline
              D Offline
              drich
              wrote on last edited by
              #16

              @artwaw in the painter.drawPixmap

              drawPixmap was underlined and it note "Too few arguments"

              what does it means?

              artwawA 1 Reply Last reply
              0
              • artwawA artwaw

                @drich That's the problem @jsulm addressed in his reply.

                D Offline
                D Offline
                drich
                wrote on last edited by
                #17

                @artwaw hi, I remove the painter.Pixmap and I run my program I clicked the createpdf button and it show a blank paper it didn't show this
                painter.setPen(Qt::black);
                painter.setFont(QFont("Arial", 30));
                painter.drawText(rect(), Qt::AlignCenter, "Technological University of the Philipines - Manila");

                artwawA 1 Reply Last reply
                0
                • D drich

                  @artwaw in the painter.drawPixmap

                  drawPixmap was underlined and it note "Too few arguments"

                  what does it means?

                  artwawA Offline
                  artwawA Offline
                  artwaw
                  wrote on last edited by
                  #18

                  @drich That means that you passed too few arguments to the method. Please refer to the documentation I linked in one of my previous posts - in that webpage together with a quite detailed overview on how to use QPainter there is also a list of the methods provided. You will see that QPainter::drawPixmap comes in many variants with different arguments list so you can choose the one that best suits your needs.
                  It seems to me that taking a look at Paint System would also bring you some significant benefits in terms of overall understanding how to accomplish what you aim for.

                  For more information please re-read.

                  Kind Regards,
                  Artur

                  D 1 Reply Last reply
                  2
                  • D drich

                    @artwaw hi, I remove the painter.Pixmap and I run my program I clicked the createpdf button and it show a blank paper it didn't show this
                    painter.setPen(Qt::black);
                    painter.setFont(QFont("Arial", 30));
                    painter.drawText(rect(), Qt::AlignCenter, "Technological University of the Philipines - Manila");

                    artwawA Offline
                    artwawA Offline
                    artwaw
                    wrote on last edited by
                    #19

                    @drich I think that is because you have not had supplied a valid rectangle area which tells QPainter::drawText() where to draw. Please refer to the documentation I linked above to learn how to draw on widgets. It would be more helpful and consistent than explaining every detail in here.

                    For more information please re-read.

                    Kind Regards,
                    Artur

                    1 Reply Last reply
                    0
                    • artwawA artwaw

                      @drich That means that you passed too few arguments to the method. Please refer to the documentation I linked in one of my previous posts - in that webpage together with a quite detailed overview on how to use QPainter there is also a list of the methods provided. You will see that QPainter::drawPixmap comes in many variants with different arguments list so you can choose the one that best suits your needs.
                      It seems to me that taking a look at Paint System would also bring you some significant benefits in terms of overall understanding how to accomplish what you aim for.

                      D Offline
                      D Offline
                      drich
                      wrote on last edited by
                      #20

                      @artwaw Now I understand Thank you very much! :)

                      artwawA 1 Reply Last reply
                      0
                      • D drich

                        @artwaw Now I understand Thank you very much! :)

                        artwawA Offline
                        artwawA Offline
                        artwaw
                        wrote on last edited by
                        #21

                        @drich My pleasure.

                        For more information please re-read.

                        Kind Regards,
                        Artur

                        1 Reply Last reply
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