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. How to show all UI from another python file in current file when button is clicked.
Forum Updated to NodeBB v4.3 + New Features

How to show all UI from another python file in current file when button is clicked.

Scheduled Pinned Locked Moved Unsolved General and Desktop
47 Posts 4 Posters 14.0k Views 3 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.
  • mrjjM mrjj

    Hi
    It seems you can use a string as class name and in that way maybe do it
    with
    https://stackoverflow.com/questions/553784/can-you-use-a-string-to-instantiate-a-class
    combined with
    https://stackoverflow.com/questions/1796180/how-can-i-get-a-list-of-all-classes-within-current-module-in-python
    so you import module , build stringlist and
    then use the

     def construct(self, builderName):
            targetClass = getattr(idClasses, builderName)
            instance = targetClass()
            self.allClasses.append(instance)
    

    to actually construct a list of instances.

    Then you can insert into your main window to show.

    S Offline
    S Offline
    sdf1444
    wrote on last edited by
    #20

    @mrjj

    Hi could you give me a full working code because I still dont know how to do it based on your suggestions. Also I really appreciate all your suggestions.

    Thanks

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

      @sdf1444 you do realise that you are basically asking us to do your work for you ? You were already given several good starting points but you didn't even show anything you tried to get things working.

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

      S 1 Reply Last reply
      1
      • SGaistS SGaist

        @sdf1444 you do realise that you are basically asking us to do your work for you ? You were already given several good starting points but you didn't even show anything you tried to get things working.

        S Offline
        S Offline
        sdf1444
        wrote on last edited by sdf1444
        #22

        @sgaist

        Hi

        Here is some code to display widgets in pyqt5. But how do I allow the code so that it displays the imported widget from another file in the same python file/window without creating a new window for the new widget.

        pyqt.py

        import sys
        from PyQt5.QtWidgets import *
        from PyQt5.QtCore import *
        from pyqt2 import *    
        
        class App(QWidget):
            def __init__(self):
                QMainWindow.__init__(self)
        
                pybutton = QPushButton('Click me', self)
                pybutton.resize(200,70)
                pybutton.move(400, 50)
                self.show()
        
        if __name__ == "__main__":
            app = QApplication(sys.argv)
            mainWin = App()
            mainWin2 = App2() 
            sys.exit(app.exec_())
        

        Here is also the code for the imported python file:

        pyqt2.py

        import sys
        from PyQt5.QtWidgets import *
        from PyQt5.QtCore import *    
        
        class App2(QWidget):
            def __init__(self):
                QMainWindow.__init__(self)
        
                pybutton = QPushButton('hi', self)
                pybutton.resize(200,70)
                pybutton.move(900, 50)
                self.show()
        
        1 Reply Last reply
        0
        • mrjjM mrjj

          Hi
          It seems you can use a string as class name and in that way maybe do it
          with
          https://stackoverflow.com/questions/553784/can-you-use-a-string-to-instantiate-a-class
          combined with
          https://stackoverflow.com/questions/1796180/how-can-i-get-a-list-of-all-classes-within-current-module-in-python
          so you import module , build stringlist and
          then use the

           def construct(self, builderName):
                  targetClass = getattr(idClasses, builderName)
                  instance = targetClass()
                  self.allClasses.append(instance)
          

          to actually construct a list of instances.

          Then you can insert into your main window to show.

          S Offline
          S Offline
          sdf1444
          wrote on last edited by sdf1444
          #23

          @mrjj

          Hi

          Here is some code to display widgets in pyqt5. But how do I allow the code so that it displays the imported widget from another file in the same python file/window without creating a new window for the new widget.

          pyqt.py

          import sys
          from PyQt5.QtWidgets import *
          from PyQt5.QtCore import *
          from pyqt2 import *
          class App(QWidget):
          def init(self):
          QMainWindow.init(self)
              pybutton = QPushButton('Click me', self)
              pybutton.resize(200,70)
              pybutton.move(400, 50)
              self.show()
          if name == "main":
          app = QApplication(sys.argv)
          mainWin = App()
          mainWin2 = App2()
          sys.exit(app.exec_())
          

          Here is also the code for the imported python file:

          pyqt2.py

          import sys
          from PyQt5.QtWidgets import *
          from PyQt5.QtCore import *
          
          class App2(QWidget):
          def init(self):
          QMainWindow.init(self)
              pybutton = QPushButton('hi', self)
              pybutton.resize(200,70)
              pybutton.move(900, 50)
              self.show()
          
          1 Reply Last reply
          0
          • mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #24

            Hi
            Widgets that do not get a parent assigned, will become windows.
            So normally you would insert the imported widgets into a
            layout on the mainwindow.

            S 1 Reply Last reply
            0
            • mrjjM mrjj

              Hi
              Widgets that do not get a parent assigned, will become windows.
              So normally you would insert the imported widgets into a
              layout on the mainwindow.

              S Offline
              S Offline
              sdf1444
              wrote on last edited by
              #25

              @mrjj

              Hi

              How do I do this? What is the code for this because I really don't understand how to do it.

              Thanks very much much appreciated with also your help.

              mrjjM 1 Reply Last reply
              0
              • S sdf1444

                @mrjj

                Hi

                How do I do this? What is the code for this because I really don't understand how to do it.

                Thanks very much much appreciated with also your help.

                mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #26

                @sdf1444
                well something like
                layout = QHBoxLayout()
                layout.addWidget(button1) // button1 would be your imported widget instance

                window.setLayout(layout)
                window.show()

                window most like being mainwindow

                its a good idea to read about layouts
                https://doc.qt.io/qtforpython/overviews/layout.html
                so you know what you are using :)

                S 2 Replies Last reply
                0
                • mrjjM mrjj

                  @sdf1444
                  well something like
                  layout = QHBoxLayout()
                  layout.addWidget(button1) // button1 would be your imported widget instance

                  window.setLayout(layout)
                  window.show()

                  window most like being mainwindow

                  its a good idea to read about layouts
                  https://doc.qt.io/qtforpython/overviews/layout.html
                  so you know what you are using :)

                  S Offline
                  S Offline
                  sdf1444
                  wrote on last edited by
                  #27

                  @mrjj

                  But the imported widget is defined in a class so how do I use the class in the layout of the main window?

                  1 Reply Last reply
                  0
                  • mrjjM mrjj

                    @sdf1444
                    well something like
                    layout = QHBoxLayout()
                    layout.addWidget(button1) // button1 would be your imported widget instance

                    window.setLayout(layout)
                    window.show()

                    window most like being mainwindow

                    its a good idea to read about layouts
                    https://doc.qt.io/qtforpython/overviews/layout.html
                    so you know what you are using :)

                    S Offline
                    S Offline
                    sdf1444
                    wrote on last edited by
                    #28

                    @mrjj

                    And how would this work for code I already have?

                    1 Reply Last reply
                    0
                    • mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #29

                      Hi
                      but a widget is a class. ?
                      so you import, you create an instance and insert into layout.

                      It should not be an issue to integrate it with the code you have.
                      Maybe you already have a layout. else now would be a good time to use one :)

                      S 2 Replies Last reply
                      0
                      • mrjjM mrjj

                        Hi
                        but a widget is a class. ?
                        so you import, you create an instance and insert into layout.

                        It should not be an issue to integrate it with the code you have.
                        Maybe you already have a layout. else now would be a good time to use one :)

                        S Offline
                        S Offline
                        sdf1444
                        wrote on last edited by
                        #30

                        @mrjj

                        Can I have an example please?

                        1 Reply Last reply
                        0
                        • mrjjM mrjj

                          Hi
                          but a widget is a class. ?
                          so you import, you create an instance and insert into layout.

                          It should not be an issue to integrate it with the code you have.
                          Maybe you already have a layout. else now would be a good time to use one :)

                          S Offline
                          S Offline
                          sdf1444
                          wrote on last edited by
                          #31

                          @mrjj

                          So how would I create instances of the classes which have multiple widgets and then insert into the layout?

                          Thanks

                          mrjjM 1 Reply Last reply
                          0
                          • S sdf1444

                            @mrjj

                            So how would I create instances of the classes which have multiple widgets and then insert into the layout?

                            Thanks

                            mrjjM Offline
                            mrjjM Offline
                            mrjj
                            Lifetime Qt Champion
                            wrote on last edited by
                            #32

                            @sdf1444
                            Hi
                            what you say, classes, you mean normal python classes that use widgets or what do you mean?
                            I can't answer that as it would be either you create the master class (composite) then (if its a widget) or
                            you would create each widget by itself if the "class" if not a widget and you don't want to show it.
                            However, it really depends on what you import.

                            S 1 Reply Last reply
                            0
                            • mrjjM mrjj

                              @sdf1444
                              Hi
                              what you say, classes, you mean normal python classes that use widgets or what do you mean?
                              I can't answer that as it would be either you create the master class (composite) then (if its a widget) or
                              you would create each widget by itself if the "class" if not a widget and you don't want to show it.
                              However, it really depends on what you import.

                              S Offline
                              S Offline
                              sdf1444
                              wrote on last edited by
                              #33

                              @mrjj

                              Basically this is an widget created inside a class. So I am importing widgets which are inside a master class. How do I instantiate this, and then insert into a layout?

                              class App2(QWidget):
                              def init(self):
                              QMainWindow.init(self)
                                  pybutton = QPushButton('hi', self)
                                  pybutton.resize(200,70)
                                  pybutton.move(900, 50)
                                  self.show()
                              
                              1 Reply Last reply
                              0
                              • mrjjM Offline
                                mrjjM Offline
                                mrjj
                                Lifetime Qt Champion
                                wrote on last edited by mrjj
                                #34

                                Well normally one would use App2 as that is the
                                composite widget.
                                So often that makes the most sense to use as it will then init the
                                widget it uses in a proper way.

                                S 1 Reply Last reply
                                0
                                • mrjjM mrjj

                                  Well normally one would use App2 as that is the
                                  composite widget.
                                  So often that makes the most sense to use as it will then init the
                                  widget it uses in a proper way.

                                  S Offline
                                  S Offline
                                  sdf1444
                                  wrote on last edited by
                                  #35

                                  @mrjj

                                  So I how do I show this in the main window. What is the overall code?

                                  mrjjM 1 Reply Last reply
                                  0
                                  • S sdf1444

                                    @mrjj

                                    So I how do I show this in the main window. What is the overall code?

                                    mrjjM Offline
                                    mrjjM Offline
                                    mrjj
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #36

                                    @sdf1444
                                    something like
                                    (import it )

                                    layout = QHBoxLayout()
                                    layout.addWidget(App2)
                                    yourwindow.setLayout(layout)
                                    yourwindow.show()

                                    S 1 Reply Last reply
                                    0
                                    • mrjjM mrjj

                                      @sdf1444
                                      something like
                                      (import it )

                                      layout = QHBoxLayout()
                                      layout.addWidget(App2)
                                      yourwindow.setLayout(layout)
                                      yourwindow.show()

                                      S Offline
                                      S Offline
                                      sdf1444
                                      wrote on last edited by
                                      #37

                                      @mrjj

                                      Hi

                                      I am getting this error when I add the layout code into pyqt.py: TypeError: addWidget(self, QWidget, stretch: int = 0, alignment: Union[Qt.Alignment, Qt.AlignmentFlag] = Qt.Alignment()): argument 1 has unexpected type 'sip.wrappertype'

                                      import sys
                                      from PyQt5.QtWidgets import *
                                      from PyQt5.QtCore import *
                                      from pyqt2 import *

                                      class App(QWidget):
                                      def init(self):
                                      QMainWindow.init(self)

                                          layout = QHBoxLayout()
                                          layout.addWidget(App2)
                                          yourwindow.setLayout(layout)
                                          yourwindow.show()
                                      
                                          pybutton = QPushButton('Click me', self)
                                          pybutton.resize(200,70)
                                          pybutton.move(400, 50)
                                          self.show()
                                      

                                      if name == "main":
                                      app = QApplication(sys.argv)
                                      mainWin = App()
                                      sys.exit(app.exec_())

                                      1 Reply Last reply
                                      0
                                      • mrjjM Offline
                                        mrjjM Offline
                                        mrjj
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #38

                                        Hi
                                        So
                                        app2 is NOT a QWidget ?
                                        i have no idea what "sip.wrappertype" is :)

                                        S 1 Reply Last reply
                                        0
                                        • mrjjM mrjj

                                          Hi
                                          So
                                          app2 is NOT a QWidget ?
                                          i have no idea what "sip.wrappertype" is :)

                                          S Offline
                                          S Offline
                                          sdf1444
                                          wrote on last edited by
                                          #39

                                          @mrjj

                                          "app2" is a widget created from inside class.

                                          mrjjM 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