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[SOLVED] changing image using keypress

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  • S Offline
    S Offline
    sasireka
    wrote on last edited by
    #14

    i used like this getting error

    /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:53: error: a function-definition is not allowed here before '{' token

    /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:69: error: 'ShowPicture' was not declared in this scope

    @void Dialog::keyPressEvent(QKeyEvent *e)
    {

    void ShowPicture(QString path)
    {
                    QMovie *movie = new QMovie(path);
                    QLabel *processLabel = new QLabel(this);
                    ui->processLabel->setMovie(movie);
                    movie->start();
    
                    ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
                    ui->label1->show();
    }
    
    static int key_press = 0;
    
    if(e->key() == Qt::Key_F3)
    {
    
       // QString path = "/home/dev6/Desktop/animation/3.gif";
        ShowPicture("/home/dev6/Desktop/animation/3.gif");
        
    }@
    

    .................................
    Thanks & Regards

    Sasi

    .................................
    Go Green

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    0
    • IamSumitI Offline
      IamSumitI Offline
      IamSumit
      wrote on last edited by
      #15

      [quote author="sasireka" date="1412078116"]i used like this getting error

      /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:53: error: a function-definition is not allowed here before '{' token

      /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:69: error: 'ShowPicture' was not declared in this scope

      @void Dialog::keyPressEvent(QKeyEvent *e)
      {

      void ShowPicture(QString path)
      {
                      QMovie *movie = new QMovie(path);
                      QLabel *processLabel = new QLabel(this);
                      ui->processLabel->setMovie(movie);
                      movie->start();
      
                      ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
                      ui->label1->show();
      }
      
      static int key_press = 0;
      
      if(e->key() == Qt::Key_F3)
      {
      
         // QString path = "/home/dev6/Desktop/animation/3.gif";
          ShowPicture("/home/dev6/Desktop/animation/3.gif");
          
      }@[/quote]
      

      hi..
      After looking your code ...i think you are new to programming.are you?
      you are defining the method inside another method .this is not the correct
      way
      just call ShowPicture("/home/dev6/Desktop/animation/2.gif");
      then you will not face any error.
      hope it helps

      Be Cute

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      0
      • S Offline
        S Offline
        sasireka
        wrote on last edited by
        #16

        [quote author="IamSumit" date="1412079562"][quote author="sasireka" date="1412078116"]i used like this getting error

        /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:53: error: a function-definition is not allowed here before '{' token

        /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:69: error: 'ShowPicture' was not declared in this scope

        @void Dialog::keyPressEvent(QKeyEvent *e)
        {

        void ShowPicture(QString path)
        {
                        QMovie *movie = new QMovie(path);
                        QLabel *processLabel = new QLabel(this);
                        ui->processLabel->setMovie(movie);
                        movie->start();
        
                        ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
                        ui->label1->show();
        }
        
        static int key_press = 0;
        
        if(e->key() == Qt::Key_F3)
        {
        
           // QString path = "/home/dev6/Desktop/animation/3.gif";
            ShowPicture("/home/dev6/Desktop/animation/3.gif");
            
        }@[/quote]
        

        hi..
        After looking your code ...i think you are new to programming.are you?
        you are defining the method inside another method .this is not the correct
        way
        just call ShowPicture("/home/dev6/Desktop/animation/2.gif");
        then you will not face any error.
        hope it helps[/quote]

        good day. yes i am new to Qt programming. Okay i will do like this. Thanks Sumit. Give me a guide to learn Qt programming and library usage.

        .................................
        Thanks & Regards

        Sasi

        .................................
        Go Green

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        0
        • S Offline
          S Offline
          sasireka
          wrote on last edited by
          #17

          bq. hi..
          After looking your code ...i think you are new to programming.are you?
          you are defining the method inside another method .this is not the correct
          way
          just call ShowPicture("/home/dev6/Desktop/animation/2.gif");
          then you will not face any error.
          hope it helps[/quote]bq.

          i did like below. but getting errors.

          @void ShowPicture(QString path)
          {
          QMovie *movie = new QMovie(path);
          QLabel *processLabel = new QLabel(this);
          ui->processLabel->setMovie(movie);
          movie->start();

                      ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
                      ui->label1->show();
          

          }

          void Dialog::keyPressEvent(QKeyEvent *e)
          {

          if(e->key() == Qt::Key_F3)
          {
                  ShowPicture(”/home/dev6/Desktop/animation/2.gif”);
          }
          

          }@

          .................................
          Thanks & Regards

          Sasi

          .................................
          Go Green

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          • IamSumitI Offline
            IamSumitI Offline
            IamSumit
            wrote on last edited by
            #18

            Hi .
            Can you show me your full code (including .h)?
            and tell me what errors you are getting also?

            Be Cute

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            0
            • S Offline
              S Offline
              sasireka
              wrote on last edited by
              #19

              [quote author="IamSumit" date="1412144476"]Hi .
              Can you show me your full code (including .h)?
              and tell me what errors you are getting also?

              [/quote]

              @#include "dialog.h"
              #include "ui_dialog.h"
              #include <QMovie>
              #include <QImage>
              #include <QFontDatabase>
              #include <QDebug>
              #include <QKeyEvent>

              Dialog::Dialog(QWidget *parent) :
              QDialog(parent),
              ui(new Ui::Dialog)
              {
              ui->setupUi(this);
              }

              Dialog::~Dialog()
              {
              delete ui;
              }

              void ShowPicture(QString path)
              {
              QMovie *movie = new QMovie(path);
              QLabel *processLabel = new QLabel(this);
              ui->processLabel->setMovie(movie);
              movie->start();

                          ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
                          ui->label1->show();
              

              }

              void Dialog::keyPressEvent(QKeyEvent *e)
              {

              if(e->key() == Qt::Key_F3)
              {
                      ShowPicture(”/home/dev6/Desktop/animation/2.gif”);
              }
              

              }@

              .................................
              Thanks & Regards

              Sasi

              .................................
              Go Green

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              • IamSumitI Offline
                IamSumitI Offline
                IamSumit
                wrote on last edited by
                #20

                ok.
                ShowPicture(QString) is the member function/method of Dialog class.
                i can't see proper definition of this method.
                in line 21.
                @
                Replace void Dialog::ShowPicture(QString path)
                @

                and in .h file declare this method as member.
                in .h file. add this line
                @
                public:
                void ShowPicture(QString path);
                @

                and your oops basics are not clear.So, Please improve your basics first.

                Hope it helps.

                Be Cute

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                0
                • S Offline
                  S Offline
                  sasireka
                  wrote on last edited by
                  #21

                  i tried . but still getting error

                  .................................
                  Thanks & Regards

                  Sasi

                  .................................
                  Go Green

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                  0
                  • IamSumitI Offline
                    IamSumitI Offline
                    IamSumit
                    wrote on last edited by
                    #22

                    What errors ?

                    Be Cute

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                    0
                    • S Offline
                      S Offline
                      sasireka
                      wrote on last edited by
                      #23

                      Good day.
                      [quote author="IamSumit" date="1412164041"]What errors ?[/quote]

                      @void Dialog::ShowPicture(QString path)
                      {
                      QMovie *movie = new QMovie(path);
                      QLabel *processLabel = new QLabel(this);
                      ui->processLabel->setMovie(movie);
                      movie->start();

                                  ui->label1->setText(QString::fromUtf8("chennai  சென்னை"));
                                  ui->label1->show();
                      

                      }

                      void Dialog::keyPressEvent(QKeyEvent *e)
                      {

                      if(e->key() == Qt::Key_F3)
                      {
                              ShowPicture(/home/dev6/Desktop/animation/2.gif);
                      }
                      

                      }@

                      errors:

                      1. /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: invalid suffix "gif" on floating constant

                      2. * /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:-1: In member function 'void Dialog::ShowPicture(QString)':
                      1
                      <* /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: expected primary-expression before '/' token

                      2< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'home' was not declared in this scope

                      3< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'home' was not declared in this scope

                      4< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'Desktop' was not declared in this scope

                      5< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'animation' was not declared in this scope

                      .................................
                      Thanks & Regards

                      Sasi

                      .................................
                      Go Green

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                      0
                      • IamSumitI Offline
                        IamSumitI Offline
                        IamSumit
                        wrote on last edited by
                        #24

                        Hi.
                        You are not passing a string .string always encloses " " quotes.
                        @
                        19.ShowPicture(/home/dev6/Desktop/animation/2.gif);
                        @
                        Correct it as .
                        ShowPicture("/home/dev6/Desktop/animation/2.gif");

                        Be Cute

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                        0
                        • S Offline
                          S Offline
                          sasireka
                          wrote on last edited by
                          #25

                          [quote author="IamSumit" date="1412585094"]Hi.
                          You are not passing a string .string always encloses " " quotes.
                          @
                          19.ShowPicture(/home/dev6/Desktop/animation/2.gif);
                          @
                          Correct it as .
                          ShowPicture("/home/dev6/Desktop/animation/2.gif");
                          [/quote]

                          yes.. really i am so sorry.Thanks alot. great help.

                          .................................
                          Thanks & Regards

                          Sasi

                          .................................
                          Go Green

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                          0
                          • S Offline
                            S Offline
                            sasireka
                            wrote on last edited by
                            #26

                            Thanks alot IamSumit IamSumit and all.

                            .................................
                            Thanks & Regards

                            Sasi

                            .................................
                            Go Green

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                            • IamSumitI Offline
                              IamSumitI Offline
                              IamSumit
                              wrote on last edited by
                              #27

                              That's ok .

                              Now please Make your thread title as [SOLVED] so others could notify that solution has been found.:)

                              Be Cute

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                              • S Offline
                                S Offline
                                sasireka
                                wrote on last edited by
                                #28

                                [quote author="IamSumit" date="1412587771"]That's ok .

                                Now please Make your thread title as [SOLVED] so others could notify that solution has been found.:)[/quote]

                                yes.. done IamSumit. :)

                                Happy Coding :)

                                .................................
                                Thanks & Regards

                                Sasi

                                .................................
                                Go Green

                                1 Reply Last reply
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