PYQT 3 communication with 2 windows

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  • Marcpp
    #1

    PYQT 3 communication with 2 windows

    Hi, I'm introducing to program in python + pyqt.
    I have a main window that call a second window (to introduce a info
    with textedit)
    when press the second window button I need to return to the main
    window the info
    introduced in the second window.
    I've seek in the pyqt doc examples but i don't find it.
    Have you any example?

    Tags: None
    • David Boddie
      #2
      Re: PYQT 3 communication with 2 windows

      On Thursday 19 April 2007 22:38, Marcpp wrote:
      Hi, I'm introducing to program in python + pyqt.
      I have a main window that call a second window (to introduce a info
      with textedit)
      when press the second window button I need to return to the main
      window the info
      introduced in the second window.
      I've seek in the pyqt doc examples but i don't find it.
      Have you any example?
      You could connect the button to a slot in the second window that sends
      the text back to the first window.

      Here's an example that sends the text to a function. You could substitute a
      class for the function to get what you want.


      import sys
      from qt import *

      class Window(QWidget) :

      def __init__(self, parent = None):

      QWidget.__init_ _(self, parent)

      self.textEdit = QTextEdit(self)
      okButton = QPushButton(sel f.tr("&OK"), self)
      self.connect(ok Button, SIGNAL("clicked ()"), self.sendText)
      layout = QVBoxLayout(sel f)
      layout.addWidge t(self.textEdit )
      layout.addWidge t(okButton)

      def sendText(self):

      self.emit(PYSIG NAL("textEntere d(QString)"), (self.textEdit. text(),))


      def fn(text):

      print text

      if __name__ == "__main__":

      app = QApplication(sy s.argv)
      window = Window()
      window.connect( window, PYSIGNAL("textE ntered(QString) "), fn)
      window.show()
      app.setMainWidg et(window)
      sys.exit(app.ex ec_loop())


      Note the use of PYSIGNAL() instead of SIGNAL(). With PyQt4 you would be able
      to use SIGNAL() and write the emit() call in a simpler form.

      David

        Comment

        • Marcpp
          #3
          Re: PYQT 3 communication with 2 windows

          On 21 abr, 02:43, David Boddie <d...@boddie.or g.ukwrote:
          On Thursday 19 April 2007 22:38, Marcpp wrote:
          >
          Hi, I'm introducing to program in python + pyqt.
          I have a main window that call a second window (to introduce a info
          with textedit)
          when press the second window button I need to return to the main
          window the info
          introduced in the second window.
          I've seek in the pyqt doc examples but i don't find it.
          Have you any example?
          >
          You could connect the button to a slot in the second window that sends
          the text back to the first window.
          >
          Here's an example that sends the text to a function. You could substitute a
          class for the function to get what you want.
          >
          import sys
          from qt import *
          >
          class Window(QWidget) :
          >
          def __init__(self, parent = None):
          >
          QWidget.__init_ _(self, parent)
          >
          self.textEdit = QTextEdit(self)
          okButton = QPushButton(sel f.tr("&OK"), self)
          self.connect(ok Button, SIGNAL("clicked ()"), self.sendText)
          layout = QVBoxLayout(sel f)
          layout.addWidge t(self.textEdit )
          layout.addWidge t(okButton)
          >
          def sendText(self):
          >
          self.emit(PYSIG NAL("textEntere d(QString)"), (self.textEdit. text(),))
          >
          def fn(text):
          >
          print text
          >
          if __name__ == "__main__":
          >
          app = QApplication(sy s.argv)
          window = Window()
          window.connect( window, PYSIGNAL("textE ntered(QString) "), fn)
          window.show()
          app.setMainWidg et(window)
          sys.exit(app.ex ec_loop())
          >
          Note the use of PYSIGNAL() instead of SIGNAL(). With PyQt4 you would be able
          to use SIGNAL() and write the emit() call in a simpler form.
          >
          David

          Thankyou!!!
          This is that I want.

            Comment

            • Marcpp
              #4
              Re: PYQT 3 communication with 2 windows

              On 21 abr, 02:43, David Boddie <d...@boddie.or g.ukwrote:
              On Thursday 19 April 2007 22:38, Marcpp wrote:
              >
              Hi, I'm introducing to program in python + pyqt.
              I have a main window that call a second window (to introduce a info
              with textedit)
              when press the second window button I need to return to the main
              window the info
              introduced in the second window.
              I've seek in the pyqt doc examples but i don't find it.
              Have you any example?
              >
              You could connect the button to a slot in the second window that sends
              the text back to the first window.
              >
              Here's an example that sends the text to a function. You could substitute a
              class for the function to get what you want.
              >
              import sys
              from qt import *
              >
              class Window(QWidget) :
              >
              def __init__(self, parent = None):
              >
              QWidget.__init_ _(self, parent)
              >
              self.textEdit = QTextEdit(self)
              okButton = QPushButton(sel f.tr("&OK"), self)
              self.connect(ok Button, SIGNAL("clicked ()"), self.sendText)
              layout = QVBoxLayout(sel f)
              layout.addWidge t(self.textEdit )
              layout.addWidge t(okButton)
              >
              def sendText(self):
              >
              self.emit(PYSIG NAL("textEntere d(QString)"), (self.textEdit. text(),))
              >
              def fn(text):
              >
              print text
              >
              if __name__ == "__main__":
              >
              app = QApplication(sy s.argv)
              window = Window()
              window.connect( window, PYSIGNAL("textE ntered(QString) "), fn)
              window.show()
              app.setMainWidg et(window)
              sys.exit(app.ex ec_loop())
              >
              Note the use of PYSIGNAL() instead of SIGNAL(). With PyQt4 you would be able
              to use SIGNAL() and write the emit() call in a simpler form.
              >
              David

              Thankyou!!!
              This is that I want.

                Comment

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