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How to simplify syntax

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  • J Offline
    J Offline
    JacobNovitsky
    wrote on last edited by
    #1

    I have Window.ui which has predefined QLabel as follow:
    QLabel QLabel QLabel QLabel
    ...
    -=- same till ned of QLabel
    Each line contains two QLabels to hold txt, two labels to hold Img
    I need to simply if some how as it feels very premature
    Kindly advise

    jsulmJ JonBJ 2 Replies Last reply
    0
    • J JacobNovitsky

      I have Window.ui which has predefined QLabel as follow:
      QLabel QLabel QLabel QLabel
      ...
      -=- same till ned of QLabel
      Each line contains two QLabels to hold txt, two labels to hold Img
      I need to simply if some how as it feels very premature
      Kindly advise

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by jsulm
      #2

      @JacobNovitsky Why do you care how the generated code looks like (I assume you're talking about the code generated from the ui file, if not please formulate the post better, it is hard to understand)?

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

      1 Reply Last reply
      2
      • J JacobNovitsky

        I have Window.ui which has predefined QLabel as follow:
        QLabel QLabel QLabel QLabel
        ...
        -=- same till ned of QLabel
        Each line contains two QLabels to hold txt, two labels to hold Img
        I need to simply if some how as it feels very premature
        Kindly advise

        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by JonB
        #3

        @JacobNovitsky
        If you are talking about the generated code as @jsulm asks then you cannot alter that (other than rewriting uic) and you should not care.

        If you mean something more like "I have "composite" widgets which contain a text label and an image label, I want to use them multiple times and I would like to reduce/rationalise the code for re-use" then you might create a widget containing the pairs or whatever of sub-widgets and then use Creator/Designer's Promotion facility to create a single widget out of them which can be re-used at design time.

        1 Reply Last reply
        1
        • J Offline
          J Offline
          JacobNovitsky
          wrote on last edited by VRonin
          #4

          I need something like this

           for (int i = 0; i < 10; ++i) { // Adjust the number of rows based on your needs
                  QLabel* textLabel1 = new QLabel(QString("Text %1").arg(i * 2 + 1), this);
                  QLabel* imgLabel1 = new QLabel(this); // Image label
                  imgLabel1->setText("Image Placeholder"); // Placeholder text
          
                  QLabel* textLabel2 = new QLabel(QString("Text %1").arg(i * 2 + 2), this);
                  QLabel* imgLabel2 = new QLabel(this); // Image label
                  imgLabel2->setText("Image Placeholder"); // Placeholder text
          
                  // Add them to the grid layout
                  layout->addWidget(textLabel1, i, 0);
                  layout->addWidget(imgLabel1, i, 1);
                  layout->addWidget(textLabel2, i, 2);
                  layout->addWidget(imgLabel2, i, 3);
          
          JonBJ jsulmJ 2 Replies Last reply
          0
          • J JacobNovitsky

            I need something like this

             for (int i = 0; i < 10; ++i) { // Adjust the number of rows based on your needs
                    QLabel* textLabel1 = new QLabel(QString("Text %1").arg(i * 2 + 1), this);
                    QLabel* imgLabel1 = new QLabel(this); // Image label
                    imgLabel1->setText("Image Placeholder"); // Placeholder text
            
                    QLabel* textLabel2 = new QLabel(QString("Text %1").arg(i * 2 + 2), this);
                    QLabel* imgLabel2 = new QLabel(this); // Image label
                    imgLabel2->setText("Image Placeholder"); // Placeholder text
            
                    // Add them to the grid layout
                    layout->addWidget(textLabel1, i, 0);
                    layout->addWidget(imgLabel1, i, 1);
                    layout->addWidget(textLabel2, i, 2);
                    layout->addWidget(imgLabel2, i, 3);
            
            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on last edited by
            #5

            @JacobNovitsky
            So now you want to create widgets dynamically instead of fixed as in the designed .ui file, which we would not have known. OK, so what is the problem/question? Yes you can create widgets dynamically, and put them into say a QGridLayout.

            Please use the forum's Code tags (</> button) when pasting blocks of code, it makes it easier for people to read and answer.

            1 Reply Last reply
            1
            • J JacobNovitsky

              I need something like this

               for (int i = 0; i < 10; ++i) { // Adjust the number of rows based on your needs
                      QLabel* textLabel1 = new QLabel(QString("Text %1").arg(i * 2 + 1), this);
                      QLabel* imgLabel1 = new QLabel(this); // Image label
                      imgLabel1->setText("Image Placeholder"); // Placeholder text
              
                      QLabel* textLabel2 = new QLabel(QString("Text %1").arg(i * 2 + 2), this);
                      QLabel* imgLabel2 = new QLabel(this); // Image label
                      imgLabel2->setText("Image Placeholder"); // Placeholder text
              
                      // Add them to the grid layout
                      layout->addWidget(textLabel1, i, 0);
                      layout->addWidget(imgLabel1, i, 1);
                      layout->addWidget(textLabel2, i, 2);
                      layout->addWidget(imgLabel2, i, 3);
              
              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #6

              @JacobNovitsky said in How to simplify syntax:

              I need something like this

              Then write it. What is the problem?

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

              1 Reply Last reply
              0
              • VRoninV Offline
                VRoninV Offline
                VRonin
                wrote on last edited by
                #7

                That walks like a table, quacks like a table and swims like a table. Are you sure you don't actually want to just use QTableWidget (or QTableView + model if you want to be fancy)?

                "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                ~Napoleon Bonaparte

                On a crusade to banish setIndexWidget() from the holy land of Qt

                J Pl45m4P 2 Replies Last reply
                4
                • VRoninV VRonin

                  That walks like a table, quacks like a table and swims like a table. Are you sure you don't actually want to just use QTableWidget (or QTableView + model if you want to be fancy)?

                  J Offline
                  J Offline
                  JacobNovitsky
                  wrote on last edited by JacobNovitsky
                  #8

                  @VRonin You're a devil in disguise!
                  Yes, I'm going to try tableView

                  J 1 Reply Last reply
                  0
                  • J JacobNovitsky

                    @VRonin You're a devil in disguise!
                    Yes, I'm going to try tableView

                    J Offline
                    J Offline
                    JacobNovitsky
                    wrote on last edited by
                    #9

                    @JacobNovitsky =Screenshot from 2024-09-18 17-42-18.png

                    It looks fine, now I need to find a way to get indices for selected columns
                    any advise?

                    jsulmJ 1 Reply Last reply
                    0
                    • J JacobNovitsky

                      @JacobNovitsky =Screenshot from 2024-09-18 17-42-18.png

                      It looks fine, now I need to find a way to get indices for selected columns
                      any advise?

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #10

                      @JacobNovitsky https://doc.qt.io/qt-6/qtablewidget.html#selectedItems and https://doc.qt.io/qt-6/qtablewidget.html#indexFromItem

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

                      1 Reply Last reply
                      1
                      • J Offline
                        J Offline
                        JacobNovitsky
                        wrote on last edited by JacobNovitsky
                        #11

                        tried to post code chunk, but output msg said it was spm
                        https://justpaste.it/g6kt5

                        above works, but selects all columns together with one click, I need to be able to do it one by one
                        please advise

                        1 Reply Last reply
                        0
                        • VRoninV Offline
                          VRoninV Offline
                          VRonin
                          wrote on last edited by
                          #12

                          instead of calling selectedIndexes and doing manipulation, have you tried calling selectedColumns instead?

                          "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                          ~Napoleon Bonaparte

                          On a crusade to banish setIndexWidget() from the holy land of Qt

                          1 Reply Last reply
                          2
                          • J Offline
                            J Offline
                            JacobNovitsky
                            wrote on last edited by
                            #13
                            void MyWindow::onSelectionChanged() {
                                // Fetch the currently selected columns using selectedColumns()
                                QItemSelectionModel *selectionModel = tableView->selectionModel();
                                QModelIndexList selectedColumns = selectionModel->selectedColumns();
                            
                                // Convert QModelIndexList to a list of column indices
                                QList<int> selectedColumnList;
                                for (const QModelIndex &index : selectedColumns) {
                                    selectedColumnList.append(index.column());
                                }
                            
                                // Sort the list of selected column indices
                                std::sort(selectedColumnList.begin(), selectedColumnList.end());
                            
                                // Print selected column indices
                                qDebug() << "Selected columns:" << selectedColumnList;
                            }
                            

                            same result

                            VRoninV 1 Reply Last reply
                            0
                            • J JacobNovitsky
                              void MyWindow::onSelectionChanged() {
                                  // Fetch the currently selected columns using selectedColumns()
                                  QItemSelectionModel *selectionModel = tableView->selectionModel();
                                  QModelIndexList selectedColumns = selectionModel->selectedColumns();
                              
                                  // Convert QModelIndexList to a list of column indices
                                  QList<int> selectedColumnList;
                                  for (const QModelIndex &index : selectedColumns) {
                                      selectedColumnList.append(index.column());
                                  }
                              
                                  // Sort the list of selected column indices
                                  std::sort(selectedColumnList.begin(), selectedColumnList.end());
                              
                                  // Print selected column indices
                                  qDebug() << "Selected columns:" << selectedColumnList;
                              }
                              

                              same result

                              VRoninV Offline
                              VRoninV Offline
                              VRonin
                              wrote on last edited by
                              #14

                              @JacobNovitsky said in How to simplify syntax:

                              same result

                              so what does qDebug() atually print there?

                              "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                              ~Napoleon Bonaparte

                              On a crusade to banish setIndexWidget() from the holy land of Qt

                              J 1 Reply Last reply
                              0
                              • VRoninV VRonin

                                @JacobNovitsky said in How to simplify syntax:

                                same result

                                so what does qDebug() atually print there?

                                J Offline
                                J Offline
                                JacobNovitsky
                                wrote on last edited by
                                #15

                                @VRonin it prints Selected columns: QList(0)
                                but I can select only all lines with one click

                                VRoninV 1 Reply Last reply
                                0
                                • J JacobNovitsky

                                  @VRonin it prints Selected columns: QList(0)
                                  but I can select only all lines with one click

                                  VRoninV Offline
                                  VRoninV Offline
                                  VRonin
                                  wrote on last edited by
                                  #16

                                  @JacobNovitsky said in How to simplify syntax:

                                  but I can select only all lines with one click

                                  I'm confused, what is the behaviour you would want to happen?

                                  "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                                  ~Napoleon Bonaparte

                                  On a crusade to banish setIndexWidget() from the holy land of Qt

                                  1 Reply Last reply
                                  0
                                  • J Offline
                                    J Offline
                                    JacobNovitsky
                                    wrote on last edited by
                                    #17

                                    Lets say, I selected line 1 3 and 9
                                    or I selected lines 1 2 3
                                    I need to 1) select only 123 out of 9 lines total
                                    2) I need to get selected indices :)

                                    1 Reply Last reply
                                    0
                                    • VRoninV Offline
                                      VRoninV Offline
                                      VRonin
                                      wrote on last edited by VRonin
                                      #18

                                      In your code you have tableView->setSelectionBehavior(QAbstractItemView::SelectColumns); that makes it so when you select a cell, the entire column gets selected. I don't believe that's what you want, delete that line

                                      "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                                      ~Napoleon Bonaparte

                                      On a crusade to banish setIndexWidget() from the holy land of Qt

                                      1 Reply Last reply
                                      1
                                      • J Offline
                                        J Offline
                                        JacobNovitsky
                                        wrote on last edited by
                                        #19

                                        https://justpaste.it/dwq1c
                                        Above is my last working code, it selects rows line by line as requested,
                                        but outputs
                                        Selected columns: QList()
                                        with no inidices

                                        I believe problem in
                                        QList<int> MyWindow::getSelectedColumns()
                                        Need to clarify/fix this syntax

                                        JonBJ 1 Reply Last reply
                                        0
                                        • VRoninV Offline
                                          VRoninV Offline
                                          VRonin
                                          wrote on last edited by
                                          #20

                                          Yes, you need to revert to selectedIndexes instead of selectedColumns. My suggestion above was a misunderstanding of your requirement

                                          "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                                          ~Napoleon Bonaparte

                                          On a crusade to banish setIndexWidget() from the holy land of Qt

                                          1 Reply Last reply
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