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Layout issue

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  • SPlattenS SPlatten

    @JonB , I've added a QVBoxLayout at top level in the centralWidget, I've then dragged and dropped the QHBoxLayout and QGridLayout into this, I've edited the properties for the QVBoxLayout setting layoutStretch to 1,1.

    Unfortunately its still the same as it was before adding the QVBoxLayout where horizontally everything is great, but vertically the button bar moves with the top of the window but the QGridLayout does not.

    Also in code for the QGridLayout after I have populated it:

    mpui->pgrdloContent->setRowStretch(0, 1);
    mpui->pgrdloContent->setRowStretch(1, 1);
    
    JonBJ Offline
    JonBJ Offline
    JonB
    wrote on last edited by JonB
    #12

    @SPlatten said in Layout issue:

    I've edited the properties for the QVBoxLayout setting layoutStretch to 1,1.

    But that makes them have the same stretch as each other, exactly as they do and you don't want. I said to add a stretch after the QGridLayout as per what I wrote, that's the whole point?

    SPlattenS 1 Reply Last reply
    0
    • JonBJ JonB

      @SPlatten said in Layout issue:

      I've edited the properties for the QVBoxLayout setting layoutStretch to 1,1.

      But that makes them have the same stretch as each other, exactly as they do and you don't want. I said to add a stretch after the QGridLayout as per what I wrote, that's the whole point?

      SPlattenS Offline
      SPlattenS Offline
      SPlatten
      wrote on last edited by
      #13

      @JonB , Either we have crossed over or I'm not understanding what you are saying I've added a stretch to the QGridLayout, isn't that exactly what this does?:

      mpui->pgrdloContent->setRowStretch(0, 1);
      mpui->pgrdloContent->setRowStretch(1, 1);
      

      Kind Regards,
      Sy

      JonBJ 1 Reply Last reply
      0
      • SPlattenS SPlatten

        @JonB , Either we have crossed over or I'm not understanding what you are saying I've added a stretch to the QGridLayout, isn't that exactly what this does?:

        mpui->pgrdloContent->setRowStretch(0, 1);
        mpui->pgrdloContent->setRowStretch(1, 1);
        
        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by JonB
        #14

        @SPlatten
        No. Exactly as I wrote. 3 things: a horizontal layout, then a grid layout, then a stretch.

        Why don't you practice with just a vertical layout containing two horizontal layouts and a stretch? That's what you want, right? I can't see how the grid layout being a grid is relevant.

        SPlattenS 1 Reply Last reply
        1
        • JonBJ JonB

          @SPlatten
          No. Exactly as I wrote. 3 things: a horizontal layout, then a grid layout, then a stretch.

          Why don't you practice with just a vertical layout containing two horizontal layouts and a stretch? That's what you want, right? I can't see how the grid layout being a grid is relevant.

          SPlattenS Offline
          SPlattenS Offline
          SPlatten
          wrote on last edited by
          #15

          @JonB , I have:

          MainWindow              QMainWindow
            pvtloMain             QVBoxLayout
              phzloTop            QHBoxLayout
                cboTraineeToView  QComboBox
                lblTtoV           QLabel
                pbtnAdmin         QPushButton
                pbtnBeginSession  QPushButton
                pbtnEndSession    QPushButton
                pbtnSearch        QPushButton
              pgrdloContent       QGridLayout
          

          Kind Regards,
          Sy

          JonBJ 1 Reply Last reply
          0
          • SPlattenS SPlatten

            @JonB , I have:

            MainWindow              QMainWindow
              pvtloMain             QVBoxLayout
                phzloTop            QHBoxLayout
                  cboTraineeToView  QComboBox
                  lblTtoV           QLabel
                  pbtnAdmin         QPushButton
                  pbtnBeginSession  QPushButton
                  pbtnEndSession    QPushButton
                  pbtnSearch        QPushButton
                pgrdloContent       QGridLayout
            
            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on last edited by
            #16

            @SPlatten
            I have already answered this 3 times. I said you need a stretch after the grid layout, assuming I understand what you want. I can't say it any more.

            SPlattenS 1 Reply Last reply
            0
            • JonBJ JonB

              @SPlatten
              I have already answered this 3 times. I said you need a stretch after the grid layout, assuming I understand what you want. I can't say it any more.

              SPlattenS Offline
              SPlattenS Offline
              SPlatten
              wrote on last edited by
              #17

              @JonB, what is a stretch? I don't see it in the side bar, under which group should I find that?

              Kind Regards,
              Sy

              JonBJ 1 Reply Last reply
              0
              • SPlattenS SPlatten

                @JonB, what is a stretch? I don't see it in the side bar, under which group should I find that?

                JonBJ Offline
                JonBJ Offline
                JonB
                wrote on last edited by JonB
                #18

                @SPlatten
                I don't run Designer but it's there on the toolbar. Horizontal & vertical stretchers. They look like blue stretches when you place them. They should end up generating

                vertLayout.addStretch()
                

                I think/assume. void QBoxLayout::addStretch(int stretch = 0).

                Pl45m4P SPlattenS 2 Replies Last reply
                0
                • JonBJ JonB

                  @SPlatten
                  I don't run Designer but it's there on the toolbar. Horizontal & vertical stretchers. They look like blue stretches when you place them. They should end up generating

                  vertLayout.addStretch()
                  

                  I think/assume. void QBoxLayout::addStretch(int stretch = 0).

                  Pl45m4P Offline
                  Pl45m4P Offline
                  Pl45m4
                  wrote on last edited by
                  #19

                  @JonB

                  Spacers not stretch :)
                  Stretch is the stretch factor to stretch a layout item over multiple layout "slots"


                  If debugging is the process of removing software bugs, then programming must be the process of putting them in.

                  ~E. W. Dijkstra

                  JonBJ 1 Reply Last reply
                  0
                  • Pl45m4P Pl45m4

                    @JonB

                    Spacers not stretch :)
                    Stretch is the stretch factor to stretch a layout item over multiple layout "slots"

                    JonBJ Offline
                    JonBJ Offline
                    JonB
                    wrote on last edited by JonB
                    #20

                    @Pl45m4
                    I have written what I thought it was. I thought spacers were fixed size. Anyway whichever you say! It's some blue thing in Designer :) The link I gave for addStretch() states:

                    Adds a stretchable space (a QSpacerItem) with zero minimum size and stretch factor stretch to the end of this box layout.

                    Isn't that it?

                    1 Reply Last reply
                    1
                    • JonBJ JonB

                      @SPlatten
                      I don't run Designer but it's there on the toolbar. Horizontal & vertical stretchers. They look like blue stretches when you place them. They should end up generating

                      vertLayout.addStretch()
                      

                      I think/assume. void QBoxLayout::addStretch(int stretch = 0).

                      SPlattenS Offline
                      SPlattenS Offline
                      SPlatten
                      wrote on last edited by SPlatten
                      #21

                      @JonB I'm running version 5.9.2 of Qt Designer, there is no stretchers...Spacers there is thank you @Pl45m4 , but I don't want to spacer things out stretch is the correct terminology just don't see it.

                      I have now modified the source adding a call to:

                      mpui->pvtloMain->addStretch(1);
                      

                      Ok, now with this its different, the whilespace between the QHBoxLayout layout and QGridLayout is now gone and when resizing the grid layout moves with the window, unlike before when it stayed anchored to the bottom, however its still not right because its not "stretching" the content, instead is moves up the window with space under the layout not occupied.

                      Just to be absolutely clear I don't want space, I want the content of the QGridLayout to resize as the container is dragged. In the same way it already does when dragging out horizontally.

                      Kind Regards,
                      Sy

                      JonBJ 1 Reply Last reply
                      0
                      • SPlattenS SPlatten

                        @JonB I'm running version 5.9.2 of Qt Designer, there is no stretchers...Spacers there is thank you @Pl45m4 , but I don't want to spacer things out stretch is the correct terminology just don't see it.

                        I have now modified the source adding a call to:

                        mpui->pvtloMain->addStretch(1);
                        

                        Ok, now with this its different, the whilespace between the QHBoxLayout layout and QGridLayout is now gone and when resizing the grid layout moves with the window, unlike before when it stayed anchored to the bottom, however its still not right because its not "stretching" the content, instead is moves up the window with space under the layout not occupied.

                        Just to be absolutely clear I don't want space, I want the content of the QGridLayout to resize as the container is dragged. In the same way it already does when dragging out horizontally.

                        JonBJ Offline
                        JonBJ Offline
                        JonB
                        wrote on last edited by JonB
                        #22

                        @SPlatten said in Layout issue:

                        Just to be absolutely clear I don't want space, I want the content of the QGridLayout to resize as the container is dragged.

                        I had no idea that was what you wanted. That's why I asked each time.

                        So I think you need to set the grid layout (as a whole, not an individual row) to occupy as much height as possible. Now is that what you want?

                        SPlattenS 1 Reply Last reply
                        0
                        • JonBJ JonB

                          @SPlatten said in Layout issue:

                          Just to be absolutely clear I don't want space, I want the content of the QGridLayout to resize as the container is dragged.

                          I had no idea that was what you wanted. That's why I asked each time.

                          So I think you need to set the grid layout (as a whole, not an individual row) to occupy as much height as possible. Now is that what you want?

                          SPlattenS Offline
                          SPlattenS Offline
                          SPlatten
                          wrote on last edited by
                          #23

                          @JonB , ok, please elaborate, its sounds like thats what I need, how do I do that?

                          Kind Regards,
                          Sy

                          JonBJ J.HilkJ 2 Replies Last reply
                          0
                          • SPlattenS SPlatten

                            @JonB , ok, please elaborate, its sounds like thats what I need, how do I do that?

                            JonBJ Offline
                            JonBJ Offline
                            JonB
                            wrote on last edited by JonB
                            #24

                            @SPlatten
                            Dunno, I just play till I get what I want :) At least we finally seem to be agreeing about what that is!

                            Don't you have to set the grid in the vertical layout to expand its height as much as possible?

                            Is QBoxLayout::addLayout(QLayout *layout, int stretch = 0) what is wanted? With a non-0 stretch.

                            Otherwise maybe @Pl45m4 can state what is wanted here?

                            SPlattenS 1 Reply Last reply
                            0
                            • SPlattenS SPlatten

                              @JonB , ok, please elaborate, its sounds like thats what I need, how do I do that?

                              J.HilkJ Offline
                              J.HilkJ Offline
                              J.Hilk
                              Moderators
                              wrote on last edited by
                              #25

                              @SPlatten

                              assuming:

                              MainWindow              QMainWindow
                                pvtloMain             QVBoxLayout
                                  phzloTop            QHBoxLayout
                                    cboTraineeToView  QComboBox
                                    lblTtoV           QLabel
                                    pbtnAdmin         QPushButton
                                    pbtnBeginSession  QPushButton
                                    pbtnEndSession    QPushButton
                                    pbtnSearch        QPushButton
                                  pgrdloContent       QGridLayout
                              

                              pvtloMain->setStretch(0, 0);
                              pvtloMain->setStretch(1, 1);

                              that makes phzloTop take up as little space as possible and pgrdloContent as much as possible


                              Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                              Q: What's that?
                              A: It's blue light.
                              Q: What does it do?
                              A: It turns blue.

                              SPlattenS 1 Reply Last reply
                              0
                              • J.HilkJ J.Hilk

                                @SPlatten

                                assuming:

                                MainWindow              QMainWindow
                                  pvtloMain             QVBoxLayout
                                    phzloTop            QHBoxLayout
                                      cboTraineeToView  QComboBox
                                      lblTtoV           QLabel
                                      pbtnAdmin         QPushButton
                                      pbtnBeginSession  QPushButton
                                      pbtnEndSession    QPushButton
                                      pbtnSearch        QPushButton
                                    pgrdloContent       QGridLayout
                                

                                pvtloMain->setStretch(0, 0);
                                pvtloMain->setStretch(1, 1);

                                that makes phzloTop take up as little space as possible and pgrdloContent as much as possible

                                SPlattenS Offline
                                SPlattenS Offline
                                SPlatten
                                wrote on last edited by
                                #26

                                @J-Hilk , I've removed both of those lines and the result is the same, they did nothing.

                                Kind Regards,
                                Sy

                                J.HilkJ 1 Reply Last reply
                                0
                                • JonBJ JonB

                                  @SPlatten
                                  Dunno, I just play till I get what I want :) At least we finally seem to be agreeing about what that is!

                                  Don't you have to set the grid in the vertical layout to expand its height as much as possible?

                                  Is QBoxLayout::addLayout(QLayout *layout, int stretch = 0) what is wanted? With a non-0 stretch.

                                  Otherwise maybe @Pl45m4 can state what is wanted here?

                                  SPlattenS Offline
                                  SPlattenS Offline
                                  SPlatten
                                  wrote on last edited by
                                  #27

                                  @JonB The QGridLayout is added to the QVBoxLayout in the designer, I cannot set the layoutRowStretch property, trying to set it to 1, it goes right back to 0 after I press enter.

                                  Kind Regards,
                                  Sy

                                  JonBJ 1 Reply Last reply
                                  0
                                  • SPlattenS SPlatten

                                    @JonB The QGridLayout is added to the QVBoxLayout in the designer, I cannot set the layoutRowStretch property, trying to set it to 1, it goes right back to 0 after I press enter.

                                    JonBJ Offline
                                    JonBJ Offline
                                    JonB
                                    wrote on last edited by JonB
                                    #28

                                    @SPlatten
                                    My last attempt, because I'm going out, and someone who knows designer better than me can doubtless say.

                                    The stretch needs to be set on the layout items added to the enclosing vboxlayout. That (the vboxlayout) has stretch factors doesn't it, or not? Temporarily put a stretch of 1 for its first first item, the hbox, and a stretch of 100 for its second item, the gridlayout? That's probably not fully right but does it do what you want? Else I don't know which way to do it.

                                    SPlattenS 1 Reply Last reply
                                    0
                                    • SPlattenS SPlatten

                                      @J-Hilk , I've removed both of those lines and the result is the same, they did nothing.

                                      J.HilkJ Offline
                                      J.HilkJ Offline
                                      J.Hilk
                                      Moderators
                                      wrote on last edited by
                                      #29

                                      @SPlatten than they layouts or widgets are otherwise constraint

                                      did you set max height of the Gridlayout ? or the sizepolicy to fixed ?

                                      because a default arrangement works as intended:

                                      10570056-aaf9-476f-82cc-716c36e5f2b8-image.png


                                      Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                                      Q: What's that?
                                      A: It's blue light.
                                      Q: What does it do?
                                      A: It turns blue.

                                      JonBJ 1 Reply Last reply
                                      1
                                      • J.HilkJ J.Hilk

                                        @SPlatten than they layouts or widgets are otherwise constraint

                                        did you set max height of the Gridlayout ? or the sizepolicy to fixed ?

                                        because a default arrangement works as intended:

                                        10570056-aaf9-476f-82cc-716c36e5f2b8-image.png

                                        JonBJ Offline
                                        JonBJ Offline
                                        JonB
                                        wrote on last edited by
                                        #30

                                        @J-Hilk
                                        Thank you for rescuing me here! I leave you to deal further with the question ;-)

                                        1 Reply Last reply
                                        1
                                        • JonBJ JonB

                                          @SPlatten
                                          My last attempt, because I'm going out, and someone who knows designer better than me can doubtless say.

                                          The stretch needs to be set on the layout items added to the enclosing vboxlayout. That (the vboxlayout) has stretch factors doesn't it, or not? Temporarily put a stretch of 1 for its first first item, the hbox, and a stretch of 100 for its second item, the gridlayout? That's probably not fully right but does it do what you want? Else I don't know which way to do it.

                                          SPlattenS Offline
                                          SPlattenS Offline
                                          SPlatten
                                          wrote on last edited by SPlatten
                                          #31

                                          @JonB, the QVboxLayout has the property layoutStretch with I've changed from 0,0 to 1,100.

                                          Thats the puzzle solved! It works perfectly, thank you for your help and support.

                                          Kind Regards,
                                          Sy

                                          1 Reply Last reply
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