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Thread: opening a second window

  1. 27th February 2010, 19:19 #1
    benlyboy
    benlyboy is offline Beginner
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    Default opening a second window

    Hi all i'm new to python and qt

    I have played a little with c++ and basic ,But most of the programing I have done in the past was for the web using java script, so this is all new to me.

    I am working on a program, and would like to open a window when I push on a button. so fare every thing I have tried has failed. There really doesn't seem to be a good tutorial on this, so I was hoping some would post a simple example of how this is done.

    To help with this I have posted three files two are the window files the last one is starting point for the program.

    I think other newbies will find this interesting

    Thanks for any help



    Saved as "openwindowmain.py"
    Qt Code: 
    1. # -*- coding: utf-8 -*-
    2.  
    3. # Form implementation generated from reading ui file 'openwindowmain.ui'
    4. #
    5. # Created: Sun Feb 21 18:59:44 2010
    6. #      by: PyQt4 UI code generator 4.3.3
    7. #
    8. # WARNING! All changes made in this file will be lost!
    9.  
    10. from PyQt4 import QtCore, QtGui
    11.  
    12. class Ui_Dialog(object):
    13.     def setupUi(self, Dialog):
    14.         Dialog.setObjectName("Dialog")
    15.         Dialog.resize(QtCore.QSize(QtCore.QRect(0,0,268,184).size()).expandedTo(Dialog.minimumSizeHint()))
    16.  
    17.         self.pushButton = QtGui.QPushButton(Dialog)
    18.         self.pushButton.setGeometry(QtCore.QRect(60,60,161,61))
    19.         self.pushButton.setObjectName("pushButton")
    20.  
    21.         self.retranslateUi(Dialog)
    22.         QtCore.QMetaObject.connectSlotsByName(Dialog)
    23.  
    24.     def retranslateUi(self, Dialog):
    25.         Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog", "Dialog", None, QtGui.QApplication.UnicodeUTF8))
    26.         self.pushButton.setText(QtGui.QApplication.translate("Dialog", "open window", None, QtGui.QApplication.UnicodeUTF8))
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    Saved as "openwindowchild.py"
    Qt Code: 
    1. # -*- coding: utf-8 -*-
    2.  
    3. # Form implementation generated from reading ui file 'openwindowchild.ui'
    4. #
    5. # Created: Sat Feb 27 13:49:23 2010
    6. #      by: PyQt4 UI code generator 4.3.3
    7. #
    8. # WARNING! All changes made in this file will be lost!
    9.  
    10. from PyQt4 import QtCore, QtGui
    11.  
    12. class Ui_Dialog(object):
    13.     def setupUi(self, Dialog):
    14.         Dialog.setObjectName("Dialog")
    15.         Dialog.resize(QtCore.QSize(QtCore.QRect(0,0,203,227).size()).expandedTo(Dialog.minimumSizeHint()))
    16.  
    17.         self.label = QtGui.QLabel(Dialog)
    18.         self.label.setGeometry(QtCore.QRect(50,70,131,51))
    19.         self.label.setObjectName("label")
    20.  
    21.         self.pushButton = QtGui.QPushButton(Dialog)
    22.         self.pushButton.setGeometry(QtCore.QRect(40,160,141,51))
    23.         self.pushButton.setObjectName("pushButton")
    24.  
    25.         self.retranslateUi(Dialog)
    26.         QtCore.QMetaObject.connectSlotsByName(Dialog)
    27.  
    28.     def retranslateUi(self, Dialog):
    29.         Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog", "Dialog", None, QtGui.QApplication.UnicodeUTF8))
    30.         self.label.setText(QtGui.QApplication.translate("Dialog", "<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
    31.         "p, li { white-space: pre-wrap; }\n"
    32.         "</style></head><body style=\" font-family:\'Sans Serif\'; font-size:9pt; font-weight:400; font-style:normal;\">\n"
    33.         "<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:25pt; color:#ff7f50;\">Worked</span></p></body></html>", None, QtGui.QApplication.UnicodeUTF8))
    34.         self.pushButton.setText(QtGui.QApplication.translate("Dialog", "Close", None, QtGui.QApplication.UnicodeUTF8))
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    saved as "openwindow.py"
    Qt Code: 
    1. import sys
    2. from PyQt4 import QtCore, QtGui
    3. from openwindowmain import Ui_Dialog
    4.  
    5.  
    6.  
    7.  
    8.  
    9.  
    10.  
    11.  
    12.  
    13. class StartQT4(QtGui.QMainWindow):
    14.     def __init__(self, parent=None):
    15.         QtGui.QWidget.__init__(self, parent)
    16.         self.ui = Ui_Dialog()
    17.         self.ui.setupUi(self)        
    18.         QtCore.QObject.connect(self.ui.pushButton,QtCore.SIGNAL("clicked()"), self.text_handler)
    19.  
    20.  
    21.  
    22.  
    23.     def text_handler(self):
    24.         print "worked"       
    25.  
    26.  
    27.  
    28.  
    29.  
    30. if __name__ == "__main__":
    31.  
    32.     app = QtGui.QApplication(sys.argv)
    33.     myapp = StartQT4()
    34.     myapp.show()
    35.     sys.exit(app.exec_())
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  2. 1st March 2010, 08:43 #2
    prof.ebral's Avatar
    prof.ebral
    prof.ebral is offline Intermediate user
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    Default Re: opening a second window

    I think your code is pretty messy, to start with, making it harder to work with. Take a look at some of my code, because I am sure it will help you.

    main.py:
    Qt Code: 
    1. # Version: Traipse 'Pious-Paladin'
    2. #   $Id: main.py,v Traipse 'Pious-Paladin' prof.ebral Exp $
    3. #
    4. # Description: This is the main entry point of the oprg application
    5.  
    6. from PyQt4 import QtCore, QtGui
    7. from os import sep
    8.  
    9. from map_engine.map_dock import MapDock
    10. from chat_engine.chat_dock import ChatDock
    11. from net_engine.plist_dock import PListDock
    12. from net_engine.client_gear import ClientGear
    13. from tree_engine.tree_dock import TreeDock
    14. from tool_gears.path_gear import PathTool, path
    15.  
    16. PathTool().load_paths(path)
    17.  
    18. class MainWindow(QtGui.QMainWindow):
    19.  
    20.     def __init__(self):
    21.         super(MainWindow, self).__init__()
    22.         self.setWindowIcon(QtGui.QIcon(path['core_images'] + 'traipse-logo-2.png'))
    23.         self.client = ClientGear(self)
    24.         self.createActions()
    25.         self.createDocks()
    26.         self.StatusBar('Ready')
    27.         self.createToolBar()
    28.         self.createStyle()
    29.         self.setCentralWidget(self.center1)
    30.  
    31.     def createDocks(self):
    32.         #Game Tree Docking Bay
    33.         self.treeDock = QtGui.QDockWidget("Dock-Game Tree", self)
    34.         self.center4 = TreeDock(self, self.client)
    35.         self.treeDock.setWidget(self.center4)
    36.         self.treeDock.setFeatures(QtGui.QDockWidget.DockWidgetMovable | 
    37.                 QtGui.QDockWidget.DockWidgetFloatable)
    38.         self.center4.add('Child-2')
    39.         self.addDockWidget(QtCore.Qt.LeftDockWidgetArea, self.treeDock)
    40.  
    41.         #Player List Docking Bay
    42.         self.PlayerList = QtGui.QDockWidget("Dock-Player List", self)
    43.         self.center3 = PListDock(self, self.client)
    44.         self.PlayerList.setWidget(self.center3)
    45.         self.PlayerList.setFeatures(QtGui.QDockWidget.DockWidgetMovable | 
    46.                 QtGui.QDockWidget.DockWidgetFloatable)
    47.         self.center3.add(2, 'Player-2', 'Idle')
    48.         self.center3.add(3, 'Player-3', 'Typing')
    49.         self.addDockWidget(QtCore.Qt.LeftDockWidgetArea, self.PlayerList)
    50.  
    51.         #Map Docking Bay
    52.         self.mapDock = QtGui.QDockWidget("Dock-Map", self)
    53.         self.center1 = MapDock(self, self.client)
    54.         self.mapDock.setWidget(self.center1)
    55.         self.mapDock.setFeatures(QtGui.QDockWidget.DockWidgetMovable | 
    56.                 QtGui.QDockWidget.DockWidgetFloatable)
    57.         self.addDockWidget(QtCore.Qt.RightDockWidgetArea, self.mapDock)
    58.         self.mapDock.hide()
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    This is the Main file. This is my anchor to all my other UI scripts. This is not a complete version, but here you can see I am creating a proxy Player List and proxy Game Tree. I want you to look at the Map Docking Bay. It inserts the MapDock class, passing the parent and the future network client.

    map_dock.py
    Qt Code: 
    1. from PyQt4 import QtCore, QtGui
    2. from tool_gears.path_gear import path
    3. from map_engine.tool_gear import mapToolGear
    4. from map_engine.map_gear import MapDocket
    5.  
    6. class MapDock(QtGui.QMainWindow):
    7.  
    8.     def __init__(self, parent, client):
    9.         super(MapDock, self).__init__()
    10.         self.parent = parent; self.client = client
    11.         self.createMap()
    12.         self.createToolBar()
    13.         self.setCentralWidget(self.mapDocket)
    14.  
    15.     def createToolBar(self):
    16.         self.ToolBay = mapToolGear(self.parent)
    17.         self.addToolBar(QtCore.Qt.BottomToolBarArea, self.ToolBay)
    18.  
    19.     ## Map Docket
    20.     def createMap(self):
    21.         self.mapDocket = QtGui.QWidget()
    22.         layout = QtGui.QGridLayout()
    23.         self.mapView = MapDocket()
    24.         layout.addWidget(self.mapView)
    25.         self.mapDocket.setLayout(layout)
    26.  
    27.     def createMapEditor(self):
    28.         self.parent.mapEditor = QtGui.QDialog()
    29.         layout = QtGui.QGridLayout()
    30.         self.parent.mapEditView = MapDocket()
    31.         layout.addWidget(self.parent.mapEditView)
    32.         self.parent.mapEditor.setLayout(layout)
    33.         self.parent.mapEditor.show()
    34.  
    35.     def empty(self):
    36.         pass
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    Here is the entirety of my map_dock file, which contains the MapDock class. Can you see how I am re using the MapDocket() class to create a map for the core software and a map for the map editor? Maybe I am wrong, but I think that is what you are trying to do. Notice how the second one is rooted in the parent?

    I would suggest you look at your Ui_Dialog Classes. They don't need to declared (object), the should be declared (QtGui.QDialog). I am also not sure why you would create a setupUI function and not use the pre-built __init__ function. I would suggest you use __init__ and then you can create room for you parent object, plus you can build the UI just by calling the class each time.
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  3. 2nd March 2010, 03:41 #3
    benlyboy
    benlyboy is offline Beginner
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    Default Re: opening a second window

    thanks you have given me a lot to take in.

    I only had a few minutes tonight so will look it over again tomorrow and post any questions or thoughts then.

    thanks for the reply
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  4. 2nd March 2010, 04:08 #4
    prof.ebral's Avatar
    prof.ebral
    prof.ebral is offline Intermediate user
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    Default Re: opening a second window

    You are welcome.
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