Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. QTableView add Rows renders wrong

QTableView add Rows renders wrong

Scheduled Pinned Locked Moved Solved General and Desktop
27 Posts 3 Posters 8.5k Views
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • F Offline
    F Offline
    Fuel
    wrote on last edited by
    #10

    What do you mean with that?

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #11

      The thing is, it seems that you want to show your custom combo box like it was a permanent editor, is that the case ?

      If not, I was just wondering why you were rendering the widget itself. Your model could return the data for the different roles needed to show the data the way you want it (i.e. background role, decoration role etc.).

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      0
      • F Offline
        F Offline
        Fuel
        wrote on last edited by
        #12

        It would be nice to show the Data in a ComboBox permanently. I tried to render a QLineEdit and have the same Problem as with the ComboBox. I dont know why i cant render an Element without having that Problem.

        I want that the User can see that the Data is changeable and because of that i picked directly a ComboBox. You have an Idea how i can solve that different?

        1 Reply Last reply
        0
        • F Offline
          F Offline
          Fuel
          wrote on last edited by
          #13

          Nobody can help me? I cant render any Element in this Table without having this Problem. Is that a Bug?

          1 Reply Last reply
          0
          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #14

            First, I'd check with a delegate like the Star Delegate sample to see if everything goes well with custom painting. Then I'd check with just a rendering a combo box without any modification to the painter.

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

            1 Reply Last reply
            0
            • F Offline
              F Offline
              Fuel
              wrote on last edited by Fuel
              #15

              I tested it now with another Widgets and the Problem is still existing. So its not a Problem with only QComboBox. So it seems its a generally Problem with rendering. I have a similar Widget like in the StarDelegate Example and the Problem occurs. I tried not to modiy the QPainter but the Problem still exists. I also deleted the QTableView and created a new One.

              Any other Ideas?

              1 Reply Last reply
              0
              • mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #16

                Hi
                I newer say such issue with
                https://wiki.qt.io/Combo_Boxes_in_Item_Views

                I think you ask it to draw in wrong position with
                painter->deviceTransform().map(option.rect.topLeft()))

                You should check the y pos when its drawing wrongly.

                Else it look ok from fast glance.

                1 Reply Last reply
                0
                • F Offline
                  F Offline
                  Fuel
                  wrote on last edited by Fuel
                  #17

                  @mrjj said in QTableView add Rows renders wrong:

                  painter->deviceTransform().map(option.rect.topLeft()))

                  If i delete this part the Problem still exists. I took a look at your Link. In this Example there is no paint Event and im wondering. How does the Delegate know how to paint the Element?

                  If i remove the render Part the ComboBox isnt shown.

                  I think its a Problem with the Painter or the Renderfunction. Or perhaps something in my Layout.

                  Update:

                  It looks like its a Layout Problem. When i switch the Buttons to the Upper i dont have that Problem.
                  0_1503921395908_Unbenannt.png

                  But why? Its a normal Gridlayout with a normal Row under the QTableView.

                  1 Reply Last reply
                  0
                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #18

                    Can you show the code that setup everything including the buttons ?

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                    1 Reply Last reply
                    0
                    • F Offline
                      F Offline
                      Fuel
                      wrote on last edited by
                      #19

                      I use the Designer. Cant show any Code, but only the XML Part which is not editable.

                      0_1503991011571_Unbenannt.png

                      1 Reply Last reply
                      0
                      • F Offline
                        F Offline
                        Fuel
                        wrote on last edited by
                        #20

                        still have the problem. the rows renders outside of the tableview.

                        1 Reply Last reply
                        0
                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #21

                          Then can you provide a minimal compilable example so people can test that locally to help find the problem ?

                          Interested in AI ? www.idiap.ch
                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                          1 Reply Last reply
                          0
                          • F Offline
                            F Offline
                            Fuel
                            wrote on last edited by Fuel
                            #22

                            I have made the Project Public in my Repository for some Days.

                            https://git.kubitox.com/Ben/KT

                            The Problem is in "Medikamentenplan" the below part. The Problem occurs in DoctorContact

                            1 Reply Last reply
                            0
                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #23

                              I can't reproduce the defect you have on macOS.

                              On a side note, you should review that code base, I had to fix several errors before being able to run your application.

                              Interested in AI ? www.idiap.ch
                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                              1 Reply Last reply
                              0
                              • F Offline
                                F Offline
                                Fuel
                                wrote on last edited by
                                #24

                                I installed a Virtual Machine with Linux and tested it. You are right, on other OS it isnt there. Maybe a Problem with Windows. But i dont know how to fix that now. Im using QT 5.9.1 and MSVC 2015 with 64-bit.

                                Could it be that the Problem is a Driver Problem?

                                1 Reply Last reply
                                0
                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #25

                                  Maybe a glitch in the Windows style.

                                  Interested in AI ? www.idiap.ch
                                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                  1 Reply Last reply
                                  0
                                  • F Offline
                                    F Offline
                                    Fuel
                                    wrote on last edited by
                                    #26

                                    I have totally no Answer for that. Anyone has the Time to Check my Project over Teamviewer? If yes please write me a Message. We can do that with Teamspeak or Discord. Would be nice if you speak German.

                                    1 Reply Last reply
                                    0
                                    • F Offline
                                      F Offline
                                      Fuel
                                      wrote on last edited by
                                      #27

                                      I updated now to Qt 5.9.2 and the Problem is gone. Thx for everyone that tried to help.

                                      1 Reply Last reply
                                      0

                                      • Login

                                      • Login or register to search.
                                      • First post
                                        Last post
                                      0
                                      • Categories
                                      • Recent
                                      • Tags
                                      • Popular
                                      • Users
                                      • Groups
                                      • Search
                                      • Get Qt Extensions
                                      • Unsolved