Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. Qt for Python
  4. Code review
Forum Updated to NodeBB v4.3 + New Features

Code review

Scheduled Pinned Locked Moved Solved Qt for Python
17 Posts 4 Posters 1.5k Views 1 Watching
  • 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.
  • B Offline
    B Offline
    blossomsg
    wrote on last edited by blossomsg
    #7

    image.png

    grid layout worked well, had to add rowSpan and colSpan incases of multiple buttons in 2 and 3 column. thank you.
    can you suggest any more modifications?

    1 Reply Last reply
    0
    • B Offline
      B Offline
      blossomsg
      wrote on last edited by
      #8
      from PySide2 import QtWidgets
      
      
      class UiModelCheck(QtWidgets.QWidget):
          def __init__(self):
              super().__init__(parent=None)
      
              self.check_asset_pushbutton = QtWidgets.QPushButton("Check Asset")
              self.info_plaintextedit = QtWidgets.QPlainTextEdit()
              self.info_clear_pushbutton = QtWidgets.QPushButton("Clear logs")
              self.checks_scrollarea = QtWidgets.QScrollArea()
      
              self.constraint_checkbox = QtWidgets.QCheckBox("No Constraints")
              self.constraint_button = QtWidgets.QPushButton("Delete All Constraints")
              self.constraint_color_button = QtWidgets.QPushButton()
              self.constraint_color_button.setSizePolicy(
                  QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed
              )
      
              self.center_pivot_points_checkbox = QtWidgets.QCheckBox(
                  "Check Pivot points are centered"
              )
              self.center_pivot_points_button = QtWidgets.QPushButton(
                  "Center Pivots on all objects"
              )
              self.center_pivot_points_float_precision_button = QtWidgets.QPushButton(
                  "Float Precision fix"
              )
              self.center_pivot_color_button = QtWidgets.QPushButton()
              self.center_pivot_color_button.setSizePolicy(
                  QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed
              )
      
              # Create a widget to maintain the items in scrollarea.
              self.scrollarea_widget = QtWidgets.QWidget()
              self.scrollarea_layout = QtWidgets.QGridLayout(self.scrollarea_widget)
              self.scrollarea_layout.addWidget(self.constraint_checkbox, 1, 1)
              self.scrollarea_layout.addWidget(self.constraint_button, 1, 1, 2, 3)
              self.scrollarea_layout.addWidget(self.constraint_color_button, 1, 4)
              self.scrollarea_layout.addWidget(self.center_pivot_points_checkbox, 2, 1)
              self.scrollarea_layout.addWidget(self.center_pivot_points_button, 2, 2)
              self.scrollarea_layout.addWidget(
                  self.center_pivot_points_float_precision_button, 2, 3
              )
              self.scrollarea_layout.addWidget(self.center_pivot_color_button, 2, 4)
      
              # Set the scroll area widget
              self.checks_scrollarea.setWidget(self.scrollarea_widget)
              self.checks_scrollarea.setWidgetResizable(
                  True
              )  # Make the scroll area resizable
              self.fix_pushbutton = QtWidgets.QPushButton("Fix All Issues")
      
              self.info_verticallayout = QtWidgets.QVBoxLayout()
              self.info_verticallayout.addWidget(self.info_plaintextedit)
              self.info_verticallayout.addWidget(self.info_clear_pushbutton)
              self.checks_info_horizontallayout = QtWidgets.QHBoxLayout()
              self.checks_info_horizontallayout.addWidget(self.checks_scrollarea)
              self.checks_info_horizontallayout.addLayout(self.info_verticallayout)
      
              self.layout = QtWidgets.QVBoxLayout()
              self.layout.addWidget(self.check_asset_pushbutton)
              self.layout.addLayout(self.checks_info_horizontallayout)
              self.layout.addWidget(self.fix_pushbutton)
              self.setLayout(self.layout)
      
          def closeEvent(self, event):
              event.accept()
      
      

      I guessed you would like the updated code, let me know if i can refactor the code in a better way

      and how should i inherit this in a new class?- good practice

      JonBJ 1 Reply Last reply
      0
      • B blossomsg
        from PySide2 import QtWidgets
        
        
        class UiModelCheck(QtWidgets.QWidget):
            def __init__(self):
                super().__init__(parent=None)
        
                self.check_asset_pushbutton = QtWidgets.QPushButton("Check Asset")
                self.info_plaintextedit = QtWidgets.QPlainTextEdit()
                self.info_clear_pushbutton = QtWidgets.QPushButton("Clear logs")
                self.checks_scrollarea = QtWidgets.QScrollArea()
        
                self.constraint_checkbox = QtWidgets.QCheckBox("No Constraints")
                self.constraint_button = QtWidgets.QPushButton("Delete All Constraints")
                self.constraint_color_button = QtWidgets.QPushButton()
                self.constraint_color_button.setSizePolicy(
                    QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed
                )
        
                self.center_pivot_points_checkbox = QtWidgets.QCheckBox(
                    "Check Pivot points are centered"
                )
                self.center_pivot_points_button = QtWidgets.QPushButton(
                    "Center Pivots on all objects"
                )
                self.center_pivot_points_float_precision_button = QtWidgets.QPushButton(
                    "Float Precision fix"
                )
                self.center_pivot_color_button = QtWidgets.QPushButton()
                self.center_pivot_color_button.setSizePolicy(
                    QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed
                )
        
                # Create a widget to maintain the items in scrollarea.
                self.scrollarea_widget = QtWidgets.QWidget()
                self.scrollarea_layout = QtWidgets.QGridLayout(self.scrollarea_widget)
                self.scrollarea_layout.addWidget(self.constraint_checkbox, 1, 1)
                self.scrollarea_layout.addWidget(self.constraint_button, 1, 1, 2, 3)
                self.scrollarea_layout.addWidget(self.constraint_color_button, 1, 4)
                self.scrollarea_layout.addWidget(self.center_pivot_points_checkbox, 2, 1)
                self.scrollarea_layout.addWidget(self.center_pivot_points_button, 2, 2)
                self.scrollarea_layout.addWidget(
                    self.center_pivot_points_float_precision_button, 2, 3
                )
                self.scrollarea_layout.addWidget(self.center_pivot_color_button, 2, 4)
        
                # Set the scroll area widget
                self.checks_scrollarea.setWidget(self.scrollarea_widget)
                self.checks_scrollarea.setWidgetResizable(
                    True
                )  # Make the scroll area resizable
                self.fix_pushbutton = QtWidgets.QPushButton("Fix All Issues")
        
                self.info_verticallayout = QtWidgets.QVBoxLayout()
                self.info_verticallayout.addWidget(self.info_plaintextedit)
                self.info_verticallayout.addWidget(self.info_clear_pushbutton)
                self.checks_info_horizontallayout = QtWidgets.QHBoxLayout()
                self.checks_info_horizontallayout.addWidget(self.checks_scrollarea)
                self.checks_info_horizontallayout.addLayout(self.info_verticallayout)
        
                self.layout = QtWidgets.QVBoxLayout()
                self.layout.addWidget(self.check_asset_pushbutton)
                self.layout.addLayout(self.checks_info_horizontallayout)
                self.layout.addWidget(self.fix_pushbutton)
                self.setLayout(self.layout)
        
            def closeEvent(self, event):
                event.accept()
        
        

        I guessed you would like the updated code, let me know if i can refactor the code in a better way

        and how should i inherit this in a new class?- good practice

        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by
        #9

        @blossomsg said in Code review:

        and how should i inherit this in a new class?- good practice

        What does this mean? You have a class UiModelCheck which inherits/derives from QtWidgets.QWidget. If you want to inherit from UiModelCheck (to create a "grandchild" class, NewClass <- UiModelCheck <- QWidget) then you may do so.

        1 Reply Last reply
        1
        • B Offline
          B Offline
          blossomsg
          wrote on last edited by
          #10

          Okay that is one of the approaches, actually, currently in my experience

          for eg:
          approach you provided

          class UiModelCheck(QtWidgets.QWidget):
              pass
          
          class NewClass(UiModelCheck)
              pass
          

          Approach where certain reviewers have suggested me to keep the logic of UI and functions separate

          class UiModelCheck(QtWidgets.QWidget):
              pass
          
          class NewClass(object)
              self.mod_ui = UiModelCheck
              pass
          

          I have mostly used the first approach, but I have been really confused with inheriting approaches, alot of people are telling me second one or some other random that i have not seen in any other place eg: qtforum or stack, so thought of clearning my doubt over here

          jsulmJ JonBJ 2 Replies Last reply
          0
          • B blossomsg

            Okay that is one of the approaches, actually, currently in my experience

            for eg:
            approach you provided

            class UiModelCheck(QtWidgets.QWidget):
                pass
            
            class NewClass(UiModelCheck)
                pass
            

            Approach where certain reviewers have suggested me to keep the logic of UI and functions separate

            class UiModelCheck(QtWidgets.QWidget):
                pass
            
            class NewClass(object)
                self.mod_ui = UiModelCheck
                pass
            

            I have mostly used the first approach, but I have been really confused with inheriting approaches, alot of people are telling me second one or some other random that i have not seen in any other place eg: qtforum or stack, so thought of clearning my doubt over here

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #11

            @blossomsg It really depends. If you want NewClass to be a widget then inherit UiModelCheck (first approach).

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

            1 Reply Last reply
            1
            • B Offline
              B Offline
              blossomsg
              wrote on last edited by
              #12

              noted, Thank you.
              any more suggestions?

              Pl45m4P 1 Reply Last reply
              0
              • B blossomsg

                noted, Thank you.
                any more suggestions?

                Pl45m4P Offline
                Pl45m4P Offline
                Pl45m4
                wrote on last edited by
                #13

                @blossomsg said in Code review:

                any more suggestions?

                Don't eat yellow snow :)

                It's your app after all, so we dont't know when you are happy with the outcome...
                If it works for you now and it behaves like expected, it's fine I guess.


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

                ~E. W. Dijkstra

                1 Reply Last reply
                1
                • B Offline
                  B Offline
                  blossomsg
                  wrote on last edited by
                  #14

                  haha, i wish there was even snow in my region. but i'll avoid yellow snow for sure.
                  I have been told many a times my codes are not well written, so i just though of getting a feedback.
                  thanks.
                  I guess its good to close then

                  Pl45m4P 1 Reply Last reply
                  0
                  • B blossomsg has marked this topic as solved on
                  • B blossomsg

                    haha, i wish there was even snow in my region. but i'll avoid yellow snow for sure.
                    I have been told many a times my codes are not well written, so i just though of getting a feedback.
                    thanks.
                    I guess its good to close then

                    Pl45m4P Offline
                    Pl45m4P Offline
                    Pl45m4
                    wrote on last edited by Pl45m4
                    #15

                    @blossomsg said in Code review:

                    I have been told many a times my codes are not well written

                    A variant (don't know if improvement or not) is to use a UI file and create your form design there.
                    Same choice when writing GUIs in C++...

                    Then you can see what you're about to get.
                    Design with QtDesigner or the integrated Designer in QtCreator and then use the UI converter tool to convert your UI to a GUI .py class... or don't compile and use QUiLoader to load and create your widget at runtime.

                    As I'm not the most experienced Qt Python (PySide/PyQt) user, I can't tell what approach is the best... I've heard some Python geeks condemning the UI-to-py-compiling approach, even though it's claimed to be the "standard", as it's not clean "Python style" and violates some principles of this language (use of external compilation tools, time consuming, annoying blah blah)... but I don't know :)
                    Anything Qt related for Python is provided by "wrappers" as Qt's "main" language is C++... so can't tell what is good practice when used with Python.
                    I can imagine the whole QObject / MOC mechanism is design-wise in conflict with pure script/interpreted programming languages... but it is how it works and otherwise you wouldn't be able to use Qt in Python.

                    As always, people will argue about that (and everything else), and in the end, it's a matter of taste what you use and how you do stuff to reach your goal.


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

                    ~E. W. Dijkstra

                    1 Reply Last reply
                    1
                    • B blossomsg

                      Okay that is one of the approaches, actually, currently in my experience

                      for eg:
                      approach you provided

                      class UiModelCheck(QtWidgets.QWidget):
                          pass
                      
                      class NewClass(UiModelCheck)
                          pass
                      

                      Approach where certain reviewers have suggested me to keep the logic of UI and functions separate

                      class UiModelCheck(QtWidgets.QWidget):
                          pass
                      
                      class NewClass(object)
                          self.mod_ui = UiModelCheck
                          pass
                      

                      I have mostly used the first approach, but I have been really confused with inheriting approaches, alot of people are telling me second one or some other random that i have not seen in any other place eg: qtforum or stack, so thought of clearning my doubt over here

                      JonBJ Offline
                      JonBJ Offline
                      JonB
                      wrote on last edited by JonB
                      #16

                      @blossomsg
                      The first approach --- subclassing --- is appropriate if NewClass IS a UiModelCheck widget.
                      The second approach --- encapsulating, to some extent --- is appropriate if NewClass wants to use a UiModelCheck while doing whatever it does, but is not itself a widget.
                      Neither one is suitable (IMHO) for keeping "logic" and "UI" separate. If you really want to keep (back-end) logic separate from (front-end) UI then the back-end should not include or know anything about the front-end. It is however OK for the front-end to make calls to the back-end, but really not vice versa.
                      Qt's signals and slots mechanism is one way to help the back-end keep quite separate from the front-end. It allows them to "communicate" with each side knowing little about the other and (if written correctly) without the back-end even knowing whether there is or is not any front-end.

                      1 Reply Last reply
                      1
                      • B Offline
                        B Offline
                        blossomsg
                        wrote on last edited by
                        #17

                        Both the feedbacks in the end are really helpful, i have tried @Pl45m4 approach of .ui and .ui to .py, I am not sure since i have not explored with designer/creator if we can create a delegate and add model data, etc in it, but only used it for general layouting and rest i code it later. But none the less Thanks for taking out time for the reply.

                        @JonB
                        Thanks for the brevity information, i was hoping to get some clarity on this back-end and front-end logic, and you gave me exactly that. I will definitely study more about signals and slots, and try to implement in my work to keep ui and backend logic separate. Thanks for the wisdom.

                        Thanks alot all of you in the thread.

                        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