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

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

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  • 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?

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    • 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?

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      • 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 :)

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        • 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
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          sdf1444
          wrote on last edited by
          #30

          @mrjj

          Can I have an example please?

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          • 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
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            • 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.

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              • 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
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                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()
                
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                • 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
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                  • 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
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                    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
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                    • 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
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                      • 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_())

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                        • 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
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                          • mrjjM mrjj

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

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                            sdf1444
                            wrote on last edited by
                            #39

                            @mrjj

                            "app2" is a widget created from inside class.

                            mrjjM 1 Reply Last reply
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                            • S sdf1444

                              @mrjj

                              "app2" is a widget created from inside class.

                              mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by
                              #40

                              @sdf1444
                              it has to inherit QWidget or be a QWidget to be used in a layout.
                              Else its plain impossible and you must create the inner Widgets yourself. :)

                              S 1 Reply Last reply
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                              • mrjjM mrjj

                                @sdf1444
                                it has to inherit QWidget or be a QWidget to be used in a layout.
                                Else its plain impossible and you must create the inner Widgets yourself. :)

                                S Offline
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                                sdf1444
                                wrote on last edited by
                                #41

                                @mrjj

                                Hi "app2" is a QWidget.

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                                • S Offline
                                  S Offline
                                  sdf1444
                                  wrote on last edited by
                                  #42

                                  @mrjj

                                  Because it is a QWidget it should be able to be shown but why do I get an error and is there another way to write this code because of an error.

                                  mrjjM 1 Reply Last reply
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                                  • S sdf1444

                                    @mrjj

                                    Because it is a QWidget it should be able to be shown but why do I get an error and is there another way to write this code because of an error.

                                    mrjjM Offline
                                    mrjjM Offline
                                    mrjj
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #43

                                    @sdf1444
                                    make sure it's not because it miss a self in the right spot.

                                    S 1 Reply Last reply
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                                    • mrjjM mrjj

                                      @sdf1444
                                      make sure it's not because it miss a self in the right spot.

                                      S Offline
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                                      sdf1444
                                      wrote on last edited by
                                      #44

                                      @mrjj

                                      Where do I need a self?

                                      mrjjM 1 Reply Last reply
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                                      • S sdf1444

                                        @mrjj

                                        Where do I need a self?

                                        mrjjM Offline
                                        mrjjM Offline
                                        mrjj
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #45

                                        @sdf1444
                                        It was just a suggestion.
                                        I dont know if that is the case.

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                                        • SGaistS Offline
                                          SGaistS Offline
                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #46

                                          @sdf1444 said in How to show all UI from another python file in current file when button is clicked.:

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

                                          Why are you declaring App to be a QWidget and then in the constructor try to do some initialisation based on QMainWindow ?

                                          Note that App is not a really good name for a widget. Most people would think of a QCore/QGui/QApplication based class.

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

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