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List Sub_directories from selected directory

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qt creatorqt5.5directorysubdirs
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  • jsulmJ jsulm

    @Kinesis What stops you from doing

    ui->listWidget_dirs->addItem(directory.dirName() + '/' + finfo.absoluteFilePath());
    

    ?

    K Offline
    K Offline
    Kinesis
    wrote on last edited by
    #3

    @jsulm
    Isn't it possible to show only subdir name ? But also work like a path . Ok , I need to use this selected directory and display images . So to display images , this selected subdir name must be a path . I don't want to list very long path . Thats why.
    If you don't get what I mean or want to take alook , I can show you my full code .

    jsulmJ 1 Reply Last reply
    0
    • K Kinesis

      @jsulm
      Isn't it possible to show only subdir name ? But also work like a path . Ok , I need to use this selected directory and display images . So to display images , this selected subdir name must be a path . I don't want to list very long path . Thats why.
      If you don't get what I mean or want to take alook , I can show you my full code .

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #4

      @Kinesis If you don't want to show the whole path, then just schow the subdirectory, but keep the path to its parent directory to use later.

      /a/b/c
      /a/b/d
      /a/b/e
      

      Keep /a/b as parent and show only c, d and e.

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

      K 1 Reply Last reply
      2
      • jsulmJ jsulm

        @Kinesis If you don't want to show the whole path, then just schow the subdirectory, but keep the path to its parent directory to use later.

        /a/b/c
        /a/b/d
        /a/b/e
        

        Keep /a/b as parent and show only c, d and e.

        K Offline
        K Offline
        Kinesis
        wrote on last edited by
        #5

        @jsulm
        Ah , I get what you mean . But how can I just show the subdirectory ?

        jsulmJ 1 Reply Last reply
        0
        • K Kinesis

          @jsulm
          Ah , I get what you mean . But how can I just show the subdirectory ?

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #6

          @Kinesis http://doc.qt.io/qt-5/qdir.html#dirName

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

          K 1 Reply Last reply
          3
          • jsulmJ jsulm

            @Kinesis http://doc.qt.io/qt-5/qdir.html#dirName

            K Offline
            K Offline
            Kinesis
            wrote on last edited by
            #7

            @jsulm
            I don't know how to use"QDir::dirName() ". Please tell me the way.

            jsulmJ aha_1980A 2 Replies Last reply
            0
            • K Kinesis

              @jsulm
              I don't know how to use"QDir::dirName() ". Please tell me the way.

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #8

              @Kinesis Well:

              QString dirPath = finfo.absoluteDir().dirName();
              

              You should read documentation and try.

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

              1 Reply Last reply
              4
              • K Kinesis

                @jsulm
                I don't know how to use"QDir::dirName() ". Please tell me the way.

                aha_1980A Offline
                aha_1980A Offline
                aha_1980
                Lifetime Qt Champion
                wrote on last edited by aha_1980
                #9

                @Kinesis:

                for (const QFileInfo &finfo: directory.entryInfoList()) {
                  QDir dir(finfo.absoluteFilePath());
                  ui->listWidget_dirs->addItem(dir.dirName());
                }
                

                disclaimer: only brain compiled

                Edit: @jsulm has the better solution :)

                Qt has to stay free or it will die.

                1 Reply Last reply
                4
                • K Offline
                  K Offline
                  Kinesis
                  wrote on last edited by
                  #10

                  Well , I did as you said . Now I can list only subdirs . But I can't use this name as file path . Because I added a click function to list images . If I click one of the subdir name, images will be displayed inside this subdir. But in that case I can't use the name . What should I do?Full code is here.

                  QDir directory = QFileDialog::getExistingDirectory(this, tr("Open Directory"),"/home", QFileDialog::ShowDirsOnly| QFileDialog::DontResolveSymlinks);
                       
                      auto listWidget_images = new QListWidget();//set listwidget to display images
                      listWidget_images->setMinimumSize(1200,400);
                      listWidget_images->setViewMode(QListWidget::IconMode);
                      listWidget_images->setIconSize(QSize(320,240));
                      listWidget_images->setResizeMode(QListWidget::Adjust);
                  
                     
                    
                  for (const QFileInfo &finfo: directory.entryInfoList()) {
                       QDir dir(finfo.absoluteFilePath());
                       ui->listWidget_dirs->addItem(dir.dirName());
                  
                     
                  
                  
                      connect(ui->listWidget_dirs, & QListWidget::itemClicked,[listWidget_images,this](QListWidgetItem *item)
                      {
                          listWidget_images->show();
                          listWidget_images->clear();
                          QDir directory(item->text());
                          directory.setNameFilters({"*.png", "*.jpg"});
                          for(const QFileInfo & finfo: directory.entryInfoList()){
                              QListWidgetItem *item = new QListWidgetItem(QIcon(finfo.absoluteFilePath()), finfo.fileName());
                              listWidget_images->addItem(item);
                  
                          }
                      });
                  

                  I can click the suddir names but the images won't be displayed. :(

                  jsulmJ 1 Reply Last reply
                  0
                  • K Kinesis

                    Well , I did as you said . Now I can list only subdirs . But I can't use this name as file path . Because I added a click function to list images . If I click one of the subdir name, images will be displayed inside this subdir. But in that case I can't use the name . What should I do?Full code is here.

                    QDir directory = QFileDialog::getExistingDirectory(this, tr("Open Directory"),"/home", QFileDialog::ShowDirsOnly| QFileDialog::DontResolveSymlinks);
                         
                        auto listWidget_images = new QListWidget();//set listwidget to display images
                        listWidget_images->setMinimumSize(1200,400);
                        listWidget_images->setViewMode(QListWidget::IconMode);
                        listWidget_images->setIconSize(QSize(320,240));
                        listWidget_images->setResizeMode(QListWidget::Adjust);
                    
                       
                      
                    for (const QFileInfo &finfo: directory.entryInfoList()) {
                         QDir dir(finfo.absoluteFilePath());
                         ui->listWidget_dirs->addItem(dir.dirName());
                    
                       
                    
                    
                        connect(ui->listWidget_dirs, & QListWidget::itemClicked,[listWidget_images,this](QListWidgetItem *item)
                        {
                            listWidget_images->show();
                            listWidget_images->clear();
                            QDir directory(item->text());
                            directory.setNameFilters({"*.png", "*.jpg"});
                            for(const QFileInfo & finfo: directory.entryInfoList()){
                                QListWidgetItem *item = new QListWidgetItem(QIcon(finfo.absoluteFilePath()), finfo.fileName());
                                listWidget_images->addItem(item);
                    
                            }
                        });
                    

                    I can click the suddir names but the images won't be displayed. :(

                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #11

                    @Kinesis said in List Sub_directories from selected directory:

                    QDir directory(item->text());

                    As I said above you need the parent directory, now you only have the last directory which is then relative path.

                     QDir directory(parentDir + '/' + item->text());
                    

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

                    K 1 Reply Last reply
                    1
                    • jsulmJ jsulm

                      @Kinesis said in List Sub_directories from selected directory:

                      QDir directory(item->text());

                      As I said above you need the parent directory, now you only have the last directory which is then relative path.

                       QDir directory(parentDir + '/' + item->text());
                      
                      K Offline
                      K Offline
                      Kinesis
                      wrote on last edited by
                      #12

                      @jsulm
                      I can't capture the parent directory which is selected from outside lambda . How can I capture it?

                      jsulmJ 1 Reply Last reply
                      0
                      • K Kinesis

                        @jsulm
                        I can't capture the parent directory which is selected from outside lambda . How can I capture it?

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #13

                        @Kinesis Sure you can:

                        QDir directory = QFileDialog::getExistingDirectory(this, tr("Open Directory"),"/home", QFileDialog::ShowDirsOnly| QFileDialog::DontResolveSymlinks);
                        ...
                        connect(ui->listWidget_dirs, & QListWidget::itemClicked,[directory, listWidget_images,this](QListWidgetItem *item)
                        ...
                        

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

                        K 1 Reply Last reply
                        2
                        • jsulmJ jsulm

                          @Kinesis Sure you can:

                          QDir directory = QFileDialog::getExistingDirectory(this, tr("Open Directory"),"/home", QFileDialog::ShowDirsOnly| QFileDialog::DontResolveSymlinks);
                          ...
                          connect(ui->listWidget_dirs, & QListWidget::itemClicked,[directory, listWidget_images,this](QListWidgetItem *item)
                          ...
                          
                          K Offline
                          K Offline
                          Kinesis
                          wrote on last edited by
                          #14

                          @jsulm
                          Well , thanks . I added directory in capture list. But When I try to combine parent dir and child dir , "QDir path(directory + '/' + item->text());" , I got an error "invalid operands to binary expression ('QDir' and 'int')" . How can I fix that?

                          jsulmJ 1 Reply Last reply
                          0
                          • K Kinesis

                            @jsulm
                            Well , thanks . I added directory in capture list. But When I try to combine parent dir and child dir , "QDir path(directory + '/' + item->text());" , I got an error "invalid operands to binary expression ('QDir' and 'int')" . How can I fix that?

                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #15

                            @Kinesis said in List Sub_directories from selected directory:

                            How can I fix that?

                            You can read documentation...

                            QString dir = directory.absolutePath() + '/' + item->text();
                            
                            

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

                            K 1 Reply Last reply
                            2
                            • jsulmJ jsulm

                              @Kinesis said in List Sub_directories from selected directory:

                              How can I fix that?

                              You can read documentation...

                              QString dir = directory.absolutePath() + '/' + item->text();
                              
                              
                              K Offline
                              K Offline
                              Kinesis
                              wrote on last edited by
                              #16

                              @jsulm
                              got it got it . Thanks .

                              1 Reply Last reply
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