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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 takoo
    1 Feb 2016, 18:59

    i tryed but was not . I get same error .

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    mrjj
    Lifetime Qt Champion
    wrote on 1 Feb 2016, 19:03 last edited by
    #8

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

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      takoo
      wrote on 1 Feb 2016, 19:19 last edited by
      #9

      yes unfourtunely

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

      M 1 Reply Last reply 1 Feb 2016, 19:35
      0
      • T takoo
        1 Feb 2016, 19:19

        yes unfourtunely

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        mrjj
        Lifetime Qt Champion
        wrote on 1 Feb 2016, 19:35 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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          takoo
          wrote on 1 Feb 2016, 19:41 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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            SGaist
            Lifetime Qt Champion
            wrote on 1 Feb 2016, 21:30 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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              takoo
              wrote on 1 Feb 2016, 21:43 last edited by
              #13

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

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

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                SGaist
                Lifetime Qt Champion
                wrote on 1 Feb 2016, 21:51 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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                  takoo
                  wrote on 1 Feb 2016, 23:16 last edited by
                  #15

                  Codes above

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

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                    SGaist
                    Lifetime Qt Champion
                    wrote on 2 Feb 2016, 11:45 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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                      takoo
                      wrote on 2 Feb 2016, 15:20 last edited by takoo 2 Feb 2016, 19:50
                      #17

                      @SGaist Where will I use mapToSource ?

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

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                        SGaist
                        Lifetime Qt Champion
                        wrote on 2 Feb 2016, 21:31 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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                          takoo
                          wrote on 3 Feb 2016, 10:51 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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                            mrjj
                            Lifetime Qt Champion
                            wrote on 3 Feb 2016, 10:55 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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                              takoo
                              wrote on 3 Feb 2016, 11:01 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 ------- (-_-) ----------

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                                mrjj
                                Lifetime Qt Champion
                                wrote on 3 Feb 2016, 11:01 last edited by
                                #22

                                oh
                                maybe its
                                mapToSource(index)

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                                  takoo
                                  wrote on 3 Feb 2016, 11:06 last edited by
                                  #23

                                  Thanks everybody

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

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