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[SOLVED] QTreeview Double Clicked "The program unexpectedly finished"

Scheduled Pinned Locked Moved Unsolved General and Desktop
qtreeviewqfilesystemmodedoubleclick
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  • T Offline
    T Offline
    takoo
    wrote on last edited by
    #7

    i tryed but was not . I get same error .

    I just write code ------- (-_-) ----------

    mrjjM 1 Reply Last reply
    0
    • T takoo

      i tryed but was not . I get same error .

      mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by
      #8

      @takoo
      Hi
      Im not sure what you mean.
      You tried this sample and it still crashes?

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      • T Offline
        T Offline
        takoo
        wrote on last edited by
        #9

        yes unfourtunely

        I just write code ------- (-_-) ----------

        mrjjM 1 Reply Last reply
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        • T takoo

          yes unfourtunely

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #10

          @takoo
          and you did use something else than "e:/" ?
          and else exact code? Model is living in mainwin .h and dont run out of scope.
          (ps sample leaks view)

          Hmm. I cant guess sorry.

          What Qt version and platform?

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          • T Offline
            T Offline
            takoo
            wrote on last edited by
            #11

            QT 5.5 Linux mint

            Code is here

            MainWindow::MainWindow(QWidget *parent) :
                QMainWindow(parent),
                ui(new Ui::MainWindow)
            {
                ui->setupUi(this);
            const QString dir( "/home/tako/cocos2d-x/" );
               const QString targetDir( dir + "OpenWorld/Classes"  );
               const QString targetRes(dir+"OpenWorld/Resources");
               const QString targetBin(dir+"OpenWorld/bin");
            
               model = new QFileSystemModel;
               model->setRootPath( targetDir );
            
            
            
               filter = new filtermodel( targetDir,targetRes,targetBin);
               filter->setSourceModel(model);
               filter->mapToSource(i);
              ui->treeView->setModel(filter);
              ui->treeView->setRootIndex(filter->mapFromSource(model->index(dir)));
            }
            
            void MainWindow::on_treeView_doubleClicked(const QModelIndex &index)
            {
            
                i=index;
                qDebug()<<model->fileName(i);
            
            }
            
            

            I just write code ------- (-_-) ----------

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #12

              Hi,

              index comes from filter not from model. You have to map the index like you did in your setRootIndex call

              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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              • T Offline
                T Offline
                takoo
                wrote on last edited by
                #13

                Please give me example code .
                I writting at the moment from phone

                I just write code ------- (-_-) ----------

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #14

                  Do you mean an example of calling mapToSource ?

                  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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                  • T Offline
                    T Offline
                    takoo
                    wrote on last edited by
                    #15

                    Codes above

                    I just write code ------- (-_-) ----------

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

                      In the code above, you are trying to use an index from your proxy on your file system model. That's the problem, you have to use mapToSource in order to get the right index.

                      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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                      • T Offline
                        T Offline
                        takoo
                        wrote on last edited by takoo
                        #17

                        @SGaist Where will I use mapToSource ?

                        I just write code ------- (-_-) ----------

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

                          In on_treeView_doubleClicked

                          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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                          • T Offline
                            T Offline
                            takoo
                            wrote on last edited by
                            #19

                            @SGaist I wrote this code and again I get error("the has unexpectedly finished") ```
                            void MainWindow::on_treeView_doubleClicked(const QModelIndex &index)
                            {

                            if(index.isValid())
                            {
                            filter->mapToSource(model->index(dir));
                            qDebug()<<model->filePath(index);
                            }
                            }

                            I just write code ------- (-_-) ----------

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                            • mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by
                              #20

                              @takoo said:

                              Hi
                              http://doc.qt.io/qt-5.5/qsortfilterproxymodel.html#mapToSource
                              it returns a new index. I assume you should use that index.
                              you still use "old" index filePath(index);

                              QModelIndex mapped=filter->mapToSource(model->index(dir));
                              model->filePath(mapped);

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                              • T Offline
                                T Offline
                                takoo
                                wrote on last edited by
                                #21

                                hi ```

                                I get error (QSortFilterProxyModel: index from wrong model passed to mapToSource)
                                void MainWindow::on_treeView_doubleClicked(const QModelIndex &index)
                                {

                                if(index.isValid())
                                {
                                QModelIndex mapped=filter->mapToSource(model->index(dir));

                                    qDebug()<<model->filePath(mapped);
                                 }
                                

                                }

                                I just write code ------- (-_-) ----------

                                1 Reply Last reply
                                0
                                • mrjjM Offline
                                  mrjjM Offline
                                  mrjj
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #22

                                  oh
                                  maybe its
                                  mapToSource(index)

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                                  • T Offline
                                    T Offline
                                    takoo
                                    wrote on last edited by
                                    #23

                                    Thanks everybody

                                    I just write code ------- (-_-) ----------

                                    1 Reply Last reply
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