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[Solved] Images in qt application not loading.

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  • J Offline
    J Offline
    joshua-anderson
    wrote on last edited by
    #12

    If I use the code:
    @QFile testing("C:\test.png");
    qDebug() << testing.exists();@

    Where my qpixmap code is (for reference I have tried it in my constructor and my resizeEvent function) the console prints false, indicating that something is really screwed up. I am 100% certain this file exists as this path will load a image from the ui file.

    The following ui code:

    @<iconset><normaloff>C:\test.png</normaloff>C:\test.png</iconset>@

    displays the image correctly.

    Any tips on things I could have screwed up in my code that could cause such a weird thing?

    1 Reply Last reply
    0
    • J Offline
      J Offline
      joshua-anderson
      wrote on last edited by
      #13

      Hello! If anyone is interested or willing to take a look at my code (it's not much) https://dl.dropboxusercontent.com/u/57778776/Working-Copy-Trackbox.zip
      I would really appreciate it. The code that is giving my problems is in trackboxmainwindow.cpp and is proceded by a large comment blocks. Thanks. I am so confused in the ways a exact path of a existing file can't be found by qt.

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      • musimbateM Offline
        musimbateM Offline
        musimbate
        wrote on last edited by
        #14

        Hi ,try this:
        1.Clean the whole project
        2.Run qmake
        3.Rebuild the whole project

        your problem sounds like "this":http://qt-project.org/forums/viewthread/28815/

        Hope this helps.

        Why join the navy if you can be a pirate?-Steve Jobs

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        • J Offline
          J Offline
          joshua-anderson
          wrote on last edited by
          #15

          I will try the clean advice(never a bad idea). This might be part of the problem with my issues in my reasources file, and this will hopefully fix it. Right now I am trying top figure out why qpixmapand qfile thinks a file with a direct path to disk does not exist when the same path works in qtcreator.

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          0
          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #16

            It's normal it's printing false. You're not escaping the \ in your code.

            Anyway since you're using Qt, use the forward slash (yes, like unix) for your paths everywhere and you wont be hit again by this.

            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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            • J Offline
              J Offline
              joshua-anderson
              wrote on last edited by
              #17

              Duh! I feel like a idiot for not noticing that. That should solve the loading image from disk problem. Next, to see if I can load from reasources.

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #18

                If you have your images in a folder, don't forget to add it in your path

                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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                0
                • J Offline
                  J Offline
                  joshua-anderson
                  wrote on last edited by
                  #19

                  musimbate, Thank you so much for your advice. It solved my resource loading problem. Why must you be this way windows?!?

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #20

                    That's a question for Microsoft :D

                    Anyway, if you have everything working now, don't forget to update the thread title prepending [solved] so other forum users may know a solution has been found :)

                    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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                    0
                    • P Offline
                      P Offline
                      psteranka
                      wrote on last edited by
                      #21

                      I was running into a problem and it was as simple as running qmake and then re-building, and then viola it worked. I used

                      @
                      QFile testIt(":/images/mypict.jpg")
                      qDebug() << "Are you loading?: " << testIt.exists();
                      @

                      to verify that the image was NOT loading, but I didn't know why. I searched around for answers but didn't find one that said When you add a resource, you need to re-run qmake.

                      I'm posting this in case someone else has the same problem.

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                      0
                      • P Offline
                        P Offline
                        psteranka
                        wrote on last edited by
                        #22

                        I was running into a problem and it was as simple as running qmake and then re-building, and then viola it worked. I used

                        @
                        QFile testIt(":/images/mypict.jpg")
                        qDebug() << "Are you loading?: " << testIt.exists();
                        @

                        to verify that the image was NOT loading, but I didn't know why. I searched around for answers but didn't find one that said When you add a resource, you need to re-run qmake.

                        I'm posting this in case someone else has the same problem.

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                        0
                        • G Offline
                          G Offline
                          Gmoney
                          wrote on last edited by
                          #23

                          Is there any way to force Designer to use the full path of an icon by default?

                          R 1 Reply Last reply
                          0
                          • G Gmoney

                            Is there any way to force Designer to use the full path of an icon by default?

                            R Offline
                            R Offline
                            reena jaus
                            wrote on last edited by
                            #24

                            @Gmoney just add image to ur .qrc file in qt . and then right click on the image copy full path . then u get the correct path
                            paste that to ur code .it works

                            1 Reply Last reply
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