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Giving file location from parent of the parent folder(Dynamically) in QT

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  • dheerendraD Offline
    dheerendraD Offline
    dheerendra
    Qt Champions 2022
    wrote on last edited by
    #5

    Print the QCoreApplication::applicationDirPath().
    Confirm whether LineMeas.jpg is present in the above directory. If it exist, there may be a problem while setting it for button. Please check

    Dheerendra
    @Community Service
    Certified Qt Specialist
    http://www.pthinks.com

    A 1 Reply Last reply
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    • dheerendraD dheerendra

      Print the QCoreApplication::applicationDirPath().
      Confirm whether LineMeas.jpg is present in the above directory. If it exist, there may be a problem while setting it for button. Please check

      A Offline
      A Offline
      amarism
      wrote on last edited by amarism
      #6

      @dheerendra LineMeas.jpg is present in the directory (C:\test\project\icon\LineMeas.jpg).
      and i am try to use the file to display image on button :-(ui->pushButton->setWindowFilePath(File);)

      1 Reply Last reply
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      • A amarism

        @dheerendra using this code to get the file path:- QFile File(QCoreApplication::applicationDirPath() + "/LineMeas.jpg");
        but i am not able to display the image inside the button

        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by
        #7

        @amarism said in Giving file location from parent of the parent folder(Dynamically) in QT:

        @dheerendra using this code to get the file path:- QFile File(QCoreApplication::applicationDirPath() + "/LineMeas.jpg");

        So since I assume your application path is not in the icon sub-folder, but is actually C:\test\project, then obviously you need to specify:

        QFile File(QCoreApplication::applicationDirPath() + "/icon/LineMeas.jpg");
        

        or whatever to address the correct desired path relative to QCoreApplication::applicationDirPath() .

        A 1 Reply Last reply
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        • JonBJ JonB

          @amarism said in Giving file location from parent of the parent folder(Dynamically) in QT:

          @dheerendra using this code to get the file path:- QFile File(QCoreApplication::applicationDirPath() + "/LineMeas.jpg");

          So since I assume your application path is not in the icon sub-folder, but is actually C:\test\project, then obviously you need to specify:

          QFile File(QCoreApplication::applicationDirPath() + "/icon/LineMeas.jpg");
          

          or whatever to address the correct desired path relative to QCoreApplication::applicationDirPath() .

          A Offline
          A Offline
          amarism
          wrote on last edited by
          #8

          @JonB But how to display the file image on button

          J.HilkJ 1 Reply Last reply
          0
          • A amarism

            @JonB But how to display the file image on button

            J.HilkJ Offline
            J.HilkJ Offline
            J.Hilk
            Moderators
            wrote on last edited by J.Hilk
            #9

            @amarism

            A QPushButton is probably not the correct widget to use, to display a dynamic icon.

            However there are 2 ways I can think of

            QPushButton::setIcon(QIcon(dynamicPath));
            
            and
            
            QString btnStyle = "border-image:url(%1);"
            btnStyle.arg(dynamicPath);
            
            QPushButton::setStyleSheet(btnStyle);
            

            Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


            Q: What's that?
            A: It's blue light.
            Q: What does it do?
            A: It turns blue.

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            • J.HilkJ J.Hilk

              @amarism

              A QPushButton is probably not the correct widget to use, to display a dynamic icon.

              However there are 2 ways I can think of

              QPushButton::setIcon(QIcon(dynamicPath));
              
              and
              
              QString btnStyle = "border-image:url(%1);"
              btnStyle.arg(dynamicPath);
              
              QPushButton::setStyleSheet(btnStyle);
              
              A Offline
              A Offline
              amarism
              wrote on last edited by
              #10

              @J.Hilk said in Giving file location from parent of the parent folder(Dynamically) in QT:

              QPushButton::setIcon(QIcon(dynamicPath));

              how to get the dynamic path

              J.HilkJ JonBJ 2 Replies Last reply
              0
              • A amarism

                @J.Hilk said in Giving file location from parent of the parent folder(Dynamically) in QT:

                QPushButton::setIcon(QIcon(dynamicPath));

                how to get the dynamic path

                J.HilkJ Offline
                J.HilkJ Offline
                J.Hilk
                Moderators
                wrote on last edited by
                #11

                @amarism said in Giving file location from parent of the parent folder(Dynamically) in QT:

                @J.Hilk said in Giving file location from parent of the parent folder(Dynamically) in QT:

                QPushButton::setIcon(QIcon(dynamicPath));

                how to get the dynamic path

                ?

                You should read the other posts more carefully

                with for example

                QCoreApplication::applicationDirPath()

                or

                QStandardPaths


                Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                Q: What's that?
                A: It's blue light.
                Q: What does it do?
                A: It turns blue.

                1 Reply Last reply
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                • A amarism

                  @J.Hilk said in Giving file location from parent of the parent folder(Dynamically) in QT:

                  QPushButton::setIcon(QIcon(dynamicPath));

                  how to get the dynamic path

                  JonBJ Offline
                  JonBJ Offline
                  JonB
                  wrote on last edited by
                  #12

                  @amarism said in Giving file location from parent of the parent folder(Dynamically) in QT:

                  how to get the dynamic path

                  We have explained this repeatedly in the examples above.

                  If your dynamic path means "it's inside the Qt application's directory, in an icon sub-folder", try either plain "icon/LineMeas.jpg" or QCoreApplication::applicationDirPath() + "/icon/LineMeas.jpg".

                  If you mean somewhere else, you'd better explain where....

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                  • A Offline
                    A Offline
                    amarism
                    wrote on last edited by
                    #13

                    @JonB said in Giving file location from parent of the parent folder(Dynamically) in QT:

                    icon/LineMeas.jpg

                    My icon folder place outside the QT application.

                    JonBJ 1 Reply Last reply
                    0
                    • A amarism

                      @JonB said in Giving file location from parent of the parent folder(Dynamically) in QT:

                      icon/LineMeas.jpg

                      My icon folder place outside the QT application.

                      JonBJ Offline
                      JonBJ Offline
                      JonB
                      wrote on last edited by
                      #14

                      @amarism

                      My icon folder place outside the QT application.

                      None of the posters here would have guessed that!

                      This does not seem like a good start for you! You sure you wouldn't be better rearranging so that it is inside the application? It would make things a lot easier....

                      OK, so if it is to be external: neither we nor your Qt application can possibly guess where the file(s) might be, can we? So, how do you/your users/your application actually know where this file is?? You need to specify this, else you'll never get anywhere! So what are your rules for where this file is to be found?

                      A 1 Reply Last reply
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                      • JonBJ JonB

                        @amarism

                        My icon folder place outside the QT application.

                        None of the posters here would have guessed that!

                        This does not seem like a good start for you! You sure you wouldn't be better rearranging so that it is inside the application? It would make things a lot easier....

                        OK, so if it is to be external: neither we nor your Qt application can possibly guess where the file(s) might be, can we? So, how do you/your users/your application actually know where this file is?? You need to specify this, else you'll never get anywhere! So what are your rules for where this file is to be found?

                        A Offline
                        A Offline
                        amarism
                        wrote on last edited by
                        #15

                        @JonB, For example, I am placing icon folder inside the QT Application but still this one not working (ui->pushButton->setIcon(QIcon(QCoreApplication::applicationDirPath() + "/icons/LineMeas.jpg"));)

                        JonBJ 1 Reply Last reply
                        0
                        • A amarism

                          @JonB, For example, I am placing icon folder inside the QT Application but still this one not working (ui->pushButton->setIcon(QIcon(QCoreApplication::applicationDirPath() + "/icons/LineMeas.jpg"));)

                          JonBJ Offline
                          JonBJ Offline
                          JonB
                          wrote on last edited by JonB
                          #16

                          @amarism

                          (ui->pushButton->setIcon(QIcon(QCoreApplication::applicationDirPath() + "/icons/LineMeas.jpg"));)

                          But earlier on you showed the sub-folder was named icon, and now you show you're using name icons in the path... ???

                          I'm sorry, but no-one will want to help if you cannot give a consistent, literal code example with correct paths which actually matches the paths on your disk. We don't want to spend time helping if this proves to be the problem area.

                          Meanwhile... you're doing too much in a single line of code to spot where the problem is. Break it down into 3 steps:

                          1. Use QFileInfo on QCoreApplication::applicationDirPath() + "/icons/LineMeas.jpg" or whatever, or open it for read. Until that is finding the file correctly.

                          2. Then verify that QIcon(QCoreApplication::applicationDirPath() + "/icons/LineMeas.jpg")) is returning an icon, not 0 or error or whatever.

                          3. Then pass it to ui->pushButton->setIcon().

                          One test one at a time....

                          A 1 Reply Last reply
                          1
                          • JonBJ JonB

                            @amarism

                            (ui->pushButton->setIcon(QIcon(QCoreApplication::applicationDirPath() + "/icons/LineMeas.jpg"));)

                            But earlier on you showed the sub-folder was named icon, and now you show you're using name icons in the path... ???

                            I'm sorry, but no-one will want to help if you cannot give a consistent, literal code example with correct paths which actually matches the paths on your disk. We don't want to spend time helping if this proves to be the problem area.

                            Meanwhile... you're doing too much in a single line of code to spot where the problem is. Break it down into 3 steps:

                            1. Use QFileInfo on QCoreApplication::applicationDirPath() + "/icons/LineMeas.jpg" or whatever, or open it for read. Until that is finding the file correctly.

                            2. Then verify that QIcon(QCoreApplication::applicationDirPath() + "/icons/LineMeas.jpg")) is returning an icon, not 0 or error or whatever.

                            3. Then pass it to ui->pushButton->setIcon().

                            One test one at a time....

                            A Offline
                            A Offline
                            amarism
                            wrote on last edited by
                            #17

                            @JonB said in Giving file location from parent of the parent folder(Dynamically) in QT:

                            ui->pushButton->setIcon()

                            my bad a small change in the code as of your prediction it is icons only thanks for correcting.

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