""" @version: 0.93(2009-07-07) @note: EasyGui provides an easy-to-use interface for simple GUI interaction with a user. It does not require the programmer to know anything about tkinter, frames, widgets, callbacks or lambda. All GUI interactions are invoked by simple function calls that return results. @note: WARNING about using EasyGui with IDLE You may encounter problems using IDLE to run programs that use EasyGui. Try it and find out. EasyGui is a collection of Tkinter routines that run their own event loops. IDLE is also a Tkinter application, with its own event loop. The two may conflict, with the unpredictable results. If you find that you have problems, try running your program outside of IDLE. Note that EasyGui requires Tk release 8.0 or greater. """ egversion = __doc__.split()[1] __all__ = ['ynbox' , 'ccbox' , 'boolbox' , 'indexbox' , 'msgbox' , 'buttonbox' , 'integerbox' , 'multenterbox' , 'enterbox' , 'exceptionbox' , 'choicebox' , 'codebox' , 'textbox' , 'diropenbox' , 'fileopenbox' , 'filesavebox' , 'passwordbox' , 'multpasswordbox' , 'multchoicebox' , 'abouteasygui' , 'egversion' , 'egdemo' , 'EgStore' ] import sys, os, string, types, pickle,traceback #-------------------------------------------------- # check python version and take appropriate action #-------------------------------------------------- """ From the python documentation: sys.hexversion contains the version number encoded as a single integer. This is guaranteed to increase with each version, including proper support for non- production releases. For example, to test that the Python interpreter is at least version 1.5.2, use: if sys.hexversion >= 0x010502F0: # use some advanced feature ... else: # use an alternative implementation or warn the user ... """ if sys.hexversion >= 0x020600F0: runningPython26 = True else: runningPython26 = False if sys.hexversion >= 0x030000F0: runningPython3 = True else: runningPython3 = False if runningPython3: from tkinter import * import tkinter.filedialog as tk_FileDialog from io import StringIO else: from Tkinter import * import tkFileDialog as tk_FileDialog from StringIO import StringIO def write(*args): args = [str(arg) for arg in args] args = " ".join(args) sys.stdout.write(args) def writeln(*args): write(*args) sys.stdout.write("\n") if TkVersion < 8.0 : stars = "*"*75 writeln("""\n\n\n""" + stars + """ You are running Tk version: """ + str(TkVersion) + """ You must be using Tk version 8.0 or greater to use EasyGui. Terminating. """ + stars + """\n\n\n""") sys.exit(0) def dq(s): return '"%s"' % s rootWindowPosition = "+300+200" PROPORTIONAL_FONT_FAMILY = ("MS", "Sans", "Serif") MONOSPACE_FONT_FAMILY = ("Courier") PROPORTIONAL_FONT_SIZE = 10 MONOSPACE_FONT_SIZE = 9 #a little smaller, because it it more legible at a smaller size TEXT_ENTRY_FONT_SIZE = 12 # a little larger makes it easier to see # Initialize some global variables that will be reset later __choiceboxMultipleSelect = None __widgetTexts = None __replyButtonText = None __choiceboxResults = None __firstWidget = None __enterboxText = None __enterboxDefaultText="" __multenterboxText = "" choiceboxChoices = None choiceboxWidget = None entryWidget = None boxRoot = None ImageErrorMsg = ( "\n\n---------------------------------------------\n" "Error: %s\n%s") #------------------------------------------------------------------- # various boxes built on top of the basic buttonbox #----------------------------------------------------------------------- #----------------------------------------------------------------------- # ynbox #----------------------------------------------------------------------- def ynbox(msg="Shall I continue?" , title=" " , choices=("Yes", "No") , image=None ): """ Display a msgbox with choices of Yes and No. The default is "Yes". The returned value is calculated this way:: if the first choice ("Yes") is chosen, or if the dialog is cancelled: return 1 else: return 0 If invoked without a msg argument, displays a generic request for a confirmation that the user wishes to continue. So it can be used this way:: if ynbox(): pass # continue else: sys.exit(0) # exit the program @arg msg: the msg to be displayed. @arg title: the window title @arg choices: a list or tuple of the choices to be displayed """ return boolbox(msg, title, choices, image=image) #----------------------------------------------------------------------- # ccbox #----------------------------------------------------------------------- def ccbox(msg="Shall I continue?" , title=" " , choices=("Continue", "Cancel") , image=None ): """ Display a msgbox with choices of Continue and Cancel. The default is "Continue". The returned value is calculated this way:: if the first choice ("Continue") is chosen, or if the dialog is cancelled: return 1 else: return 0 If invoked without a msg argument, displays a generic request for a confirmation that the user wishes to continue. So it can be used this way:: if ccbox(): pass # continue else: sys.exit(0) # exit the program @arg msg: the msg to be displayed. @arg title: the window title @arg choices: a list or tuple of the choices to be displayed """ return boolbox(msg, title, choices, image=image) #----------------------------------------------------------------------- # boolbox #----------------------------------------------------------------------- def boolbox(msg="Shall I continue?" , title=" " , choices=("Yes","No") , image=None ): """ Display a boolean msgbox. The default is the first choice. The returned value is calculated this way:: if the first choice is chosen, or if the dialog is cancelled: returns 1 else: returns 0 """ reply = buttonbox(msg=msg, choices=choices, title=title, image=image) if reply == choices[0]: return 1 else: return 0 #----------------------------------------------------------------------- # indexbox #----------------------------------------------------------------------- def indexbox(msg="Shall I continue?" , title=" " , choices=("Yes","No") , image=None ): """ Display a buttonbox with the specified choices. Return the index of the choice selected. """ reply = buttonbox(msg=msg, choices=choices, title=title, image=image) index = -1 for choice in choices: index = index + 1 if reply == choice: return index raise AssertionError( "There is a program logic error in the EasyGui code for indexbox.") #----------------------------------------------------------------------- # msgbox #----------------------------------------------------------------------- def msgbox(msg="(Your message goes here)", title=" ", ok_button="OK",image=None,root=None): """ Display a messagebox """ if type(ok_button) != type("OK"): raise AssertionError("The 'ok_button' argument to msgbox must be a string.") return buttonbox(msg=msg, title=title, choices=[ok_button], image=image,root=root) #------------------------------------------------------------------- # buttonbox #------------------------------------------------------------------- def buttonbox(msg="",title=" " ,choices=("Button1", "Button2", "Button3") , image=None , root=None ): """ Display a msg, a title, and a set of buttons. The buttons are defined by the members of the choices list. Return the text of the button that the user selected. @arg msg: the msg to be displayed. @arg title: the window title @arg choices: a list or tuple of the choices to be displayed """ global boxRoot, __replyButtonText, __widgetTexts, buttonsFrame if image: image = os.path.normpath(image) junk,ext = os.path.splitext(image) if ext.lower() == ".gif": if os.path.exists(image): pass else: msg += ImageErrorMsg % (image, "Image file not found.") image = None else: msg += ImageErrorMsg % (image, "Image file is not a .gif file.") image = None # Initialize __replyButtonText to the first choice. # This is what will be used if the window is closed by the close button. __replyButtonText = choices[0] if root: root.withdraw() boxRoot = Toplevel(master=root) boxRoot.withdraw() else: boxRoot = Tk() boxRoot.withdraw() boxRoot.protocol('WM_DELETE_WINDOW', denyWindowManagerClose ) boxRoot.title(title) boxRoot.iconname('Dialog') boxRoot.geometry(rootWindowPosition) boxRoot.minsize(400, 100) # ------------- define the messageFrame --------------------------------- messageFrame = Frame(master=boxRoot) messageFrame.pack(side=TOP, fill=BOTH) # ------------- define the imageFrame --------------------------------- if image: imageFrame = Frame(master=boxRoot) imageFrame.pack(side=TOP, fill=BOTH) image = PhotoImage(file=image) label = Label(imageFrame,image=image) label.image = image # keep a reference! label.pack(side=TOP, expand=YES, fill=X, padx='1m', pady='1m') # ------------- define the buttonsFrame --------------------------------- buttonsFrame = Frame(master=boxRoot) buttonsFrame.pack(side=TOP, fill=BOTH) # -------------------- place the widgets in the frames ----------------------- messageWidget = Message(messageFrame, text=msg, width=400) messageWidget.configure(font=(PROPORTIONAL_FONT_FAMILY,PROPORTIONAL_FONT_SIZE)) messageWidget.pack(side=TOP, expand=YES, fill=X, padx='3m', pady='3m') __put_buttons_in_buttonframe(choices) # -------------- the action begins ----------- # put the focus on the first button __firstWidget.focus_force() boxRoot.deiconify() boxRoot.mainloop() boxRoot.destroy() if root: root.deiconify() return __replyButtonText #------------------------------------------------------------------- # integerbox #------------------------------------------------------------------- def integerbox(msg="" , title=" " , default="" , argLowerBound=0 , argUpperBound=99 , image = None , root = None ): """ Show a box in which a user can enter an integer. In addition to arguments for msg and title, this function accepts integer arguments for default_value, lowerbound, and upperbound. The default_value argument may be None. When the user enters some text, the text is checked to verify that it can be converted to an integer between the lowerbound and upperbound. If it can be, the integer (not the text) is returned. If it cannot, then an error msg is displayed, and the integerbox is redisplayed. If the user cancels the operation, None is returned. """ if default != "": if type(default) != type(1): raise AssertionError( "integerbox received a non-integer value for " + "default of " + dq(str(default)) , "Error") if type(argLowerBound) != type(1): raise AssertionError( "integerbox received a non-integer value for " + "argLowerBound of " + dq(str(argLowerBound)) , "Error") if type(argUpperBound) != type(1): raise AssertionError( "integerbox received a non-integer value for " + "argUpperBound of " + dq(str(argUpperBound)) , "Error") if msg == "": msg = ("Enter an integer between " + str(argLowerBound) + " and " + str(argUpperBound) ) while 1: reply = enterbox(msg, title, str(default), image=image, root=root) if reply == None: return None try: reply = int(reply) except: msgbox ("The value that you entered:\n\t%s\nis not an integer." % dq(str(reply)) , "Error") continue if reply < argLowerBound: msgbox ("The value that you entered is less than the lower bound of " + str(argLowerBound) + ".", "Error") continue if reply > argUpperBound: msgbox ("The value that you entered is greater than the upper bound of " + str(argUpperBound) + ".", "Error") continue # reply has passed all validation checks. # It is an integer between the specified bounds. return reply #------------------------------------------------------------------- # multenterbox #------------------------------------------------------------------- def multenterbox(msg="Fill in values for the fields." , title=" " , fields=() , values=() ): r""" Show screen with multiple data entry fields. If there are fewer values than names, the list of values is padded with empty strings until the number of values is the same as the number of names. If there are more values than names, the list of values is truncated so that there are as many values as names. Returns a list of the values of the fields, or None if the user cancels the operation. Here is some example code, that shows how values returned from multenterbox can be checked for validity before they are accepted:: ---------------------------------------------------------------------- msg = "Enter your personal information" title = "Credit Card Application" fieldNames = ["Name","Street Address","City","State","ZipCode"] fieldValues = [] # we start with blanks for the values fieldValues = multenterbox(msg,title, fieldNames) # make sure that none of the fields was left blank while 1: if fieldValues == None: break errmsg = "" for i in range(len(fieldNames)): if fieldValues[i].strip() == "": errmsg += ('"%s" is a required field.\n\n' % fieldNames[i]) if errmsg == "": break # no problems found fieldValues = multenterbox(errmsg, title, fieldNames, fieldValues) writeln("Reply was: %s" % str(fieldValues)) ---------------------------------------------------------------------- @arg msg: the msg to be displayed. @arg title: the window title @arg fields: a list of fieldnames. @arg values: a list of field values """ return __multfillablebox(msg,title,fields,values,None) #----------------------------------------------------------------------- # multpasswordbox #----------------------------------------------------------------------- def multpasswordbox(msg="Fill in values for the fields." , title=" " , fields=tuple() ,values=tuple() ): r""" Same interface as multenterbox. But in multpassword box, the last of the fields is assumed to be a password, and is masked with asterisks. Example ======= Here is some example code, that shows how values returned from multpasswordbox can be checked for validity before they are accepted:: msg = "Enter logon information" title = "Demo of multpasswordbox" fieldNames = ["Server ID", "User ID", "Password"] fieldValues = [] # we start with blanks for the values fieldValues = multpasswordbox(msg,title, fieldNames) # make sure that none of the fields was left blank while 1: if fieldValues == None: break errmsg = "" for i in range(len(fieldNames)): if fieldValues[i].strip() == "": errmsg = errmsg + ('"%s" is a required field.\n\n' % fieldNames[i]) if errmsg == "": break # no problems found fieldValues = multpasswordbox(errmsg, title, fieldNames, fieldValues) writeln("Reply was: %s" % str(fieldValues)) """ return __multfillablebox(msg,title,fields,values,"*") #----------------------------------------------------------------------- # __multfillablebox #----------------------------------------------------------------------- def __multfillablebox(msg="Fill in values for the fields." , title=" " , fields=() , values=() , mask = None ): global boxRoot, __multenterboxText, __multenterboxDefaultText, cancelButton, entryWidget, okButton choices = ["OK", "Cancel"] if len(fields) == 0: return None fields = list(fields[:]) # convert possible tuples to a list values = list(values[:]) # convert possible tuples to a list if len(values) == len(fields): pass elif len(values) > len(fields): fields = fields[0:len(values)] else: while len(values) < len(fields): values.append("") boxRoot = Tk() boxRoot.protocol('WM_DELETE_WINDOW', denyWindowManagerClose ) boxRoot.title(title) boxRoot.iconname('Dialog') boxRoot.geometry(rootWindowPosition) boxRoot.bind("", __multenterboxCancel) # -------------------- put subframes in the boxRoot -------------------- messageFrame = Frame(master=boxRoot) messageFrame.pack(side=TOP, fill=BOTH) #-------------------- the msg widget ---------------------------- messageWidget = Message(messageFrame, width="4.5i", text=msg) messageWidget.configure(font=(PROPORTIONAL_FONT_FAMILY,PROPORTIONAL_FONT_SIZE)) messageWidget.pack(side=RIGHT, expand=1, fill=BOTH, padx='3m', pady='3m') global entryWidgets entryWidgets = [] lastWidgetIndex = len(fields) - 1 for widgetIndex in range(len(fields)): argFieldName = fields[widgetIndex] argFieldValue = values[widgetIndex] entryFrame = Frame(master=boxRoot) entryFrame.pack(side=TOP, fill=BOTH) # --------- entryWidget ---------------------------------------------- labelWidget = Label(entryFrame, text=argFieldName) labelWidget.pack(side=LEFT) entryWidgets.append(Entry(entryFrame, width=40)) entryWidgets[widgetIndex].configure(font=(PROPORTIONAL_FONT_FAMILY,TEXT_ENTRY_FONT_SIZE)) entryWidgets[widgetIndex].pack(side=RIGHT, padx="3m") entryWidgets[widgetIndex].bind("", __multenterboxGetText) entryWidgets[widgetIndex].bind("", __multenterboxCancel) # for the last entryWidget, if this is a multpasswordbox, # show the contents as just asterisks if widgetIndex == lastWidgetIndex: if mask: entryWidgets[widgetIndex].configure(show=mask) # put text into the entryWidget entryWidgets[widgetIndex].insert(0,argFieldValue) widgetIndex += 1 # ------------------ ok button ------------------------------- buttonsFrame = Frame(master=boxRoot) buttonsFrame.pack(side=BOTTOM, fill=BOTH) okButton = Button(buttonsFrame, takefocus=1, text="OK") okButton.pack(expand=1, side=LEFT, padx='3m', pady='3m', ipadx='2m', ipady='1m') okButton.bind("" , __multenterboxGetText) okButton.bind("", __multenterboxGetText) # ------------------ cancel button ------------------------------- cancelButton = Button(buttonsFrame, takefocus=1, text="Cancel") cancelButton.pack(expand=1, side=RIGHT, padx='3m', pady='3m', ipadx='2m', ipady='1m') cancelButton.bind("" , __multenterboxCancel) cancelButton.bind("", __multenterboxCancel) # ------------------- time for action! ----------------- entryWidgets[0].focus_force() # put the focus on the entryWidget boxRoot.mainloop() # run it! # -------- after the run has completed ---------------------------------- boxRoot.destroy() # button_click didn't destroy boxRoot, so we do it now return __multenterboxText #----------------------------------------------------------------------- # __multenterboxGetText #----------------------------------------------------------------------- def __multenterboxGetText(event): global __multenterboxText __multenterboxText = [] for entryWidget in entryWidgets: __multenterboxText.append(entryWidget.get()) boxRoot.quit() def __multenterboxCancel(event): global __multenterboxText __multenterboxText = None boxRoot.quit() #------------------------------------------------------------------- # enterbox #------------------------------------------------------------------- def enterbox(msg="Enter something." , title=" " , default="" , strip=True , image=None , root=None ): """ Show a box in which a user can enter some text. You may optionally specify some default text, which will appear in the enterbox when it is displayed. Returns the text that the user entered, or None if he cancels the operation. By default, enterbox strips its result (i.e. removes leading and trailing whitespace). (If you want it not to strip, use keyword argument: strip=False.) This makes it easier to test the results of the call:: reply = enterbox(....) if reply: ... else: ... """ result = __fillablebox(msg, title, default=default, mask=None,image=image,root=root) if result and strip: result = result.strip() return result def passwordbox(msg="Enter your password." , title=" " , default="" , image=None , root=None ): """ Show a box in which a user can enter a password. The text is masked with asterisks, so the password is not displayed. Returns the text that the user entered, or None if he cancels the operation. """ return __fillablebox(msg, title, default, mask="*",image=image,root=root) def __fillablebox(msg , title="" , default="" , mask=None , image=None , root=None ): """ Show a box in which a user can enter some text. You may optionally specify some default text, which will appear in the enterbox when it is displayed. Returns the text that the user entered, or None if he cancels the operation. """ global boxRoot, __enterboxText, __enterboxDefaultText global cancelButton, entryWidget, okButton if title == None: title == "" if default == None: default = "" __enterboxDefaultText = default __enterboxText = __enterboxDefaultText if root: root.withdraw() boxRoot = Toplevel(master=root) boxRoot.withdraw() else: boxRoot = Tk() boxRoot.withdraw() boxRoot.protocol('WM_DELETE_WINDOW', denyWindowManagerClose ) boxRoot.title(title) boxRoot.iconname('Dialog') boxRoot.geometry(rootWindowPosition) boxRoot.bind("", __enterboxCancel) if image: image = os.path.normpath(image) junk,ext = os.path.splitext(image) if ext.lower() == ".gif": if os.path.exists(image): pass else: msg += ImageErrorMsg % (image, "Image file not found.") image = None else: msg += ImageErrorMsg % (image, "Image file is not a .gif file.") image = None # ------------- define the messageFrame --------------------------------- messageFrame = Frame(master=boxRoot) messageFrame.pack(side=TOP, fill=BOTH) # ------------- define the imageFrame --------------------------------- if image: imageFrame = Frame(master=boxRoot) imageFrame.pack(side=TOP, fill=BOTH) image = PhotoImage(file=image) label = Label(imageFrame,image=image) label.image = image # keep a reference! label.pack(side=TOP, expand=YES, fill=X, padx='1m', pady='1m') # ------------- define the entryFrame --------------------------------- entryFrame = Frame(master=boxRoot) entryFrame.pack(side=TOP, fill=BOTH) # ------------- define the buttonsFrame --------------------------------- buttonsFrame = Frame(master=boxRoot) buttonsFrame.pack(side=TOP, fill=BOTH) #-------------------- the msg widget ---------------------------- messageWidget = Message(messageFrame, width="4.5i", text=msg) messageWidget.configure(font=(PROPORTIONAL_FONT_FAMILY,PROPORTIONAL_FONT_SIZE)) messageWidget.pack(side=RIGHT, expand=1, fill=BOTH, padx='3m', pady='3m') # --------- entryWidget ---------------------------------------------- entryWidget = Entry(entryFrame, width=40) entryWidget.configure(font=(PROPORTIONAL_FONT_FAMILY,TEXT_ENTRY_FONT_SIZE)) if mask: entryWidget.configure(show=mask) entryWidget.pack(side=LEFT, padx="3m") entryWidget.bind("", __enterboxGetText) entryWidget.bind("", __enterboxCancel) # put text into the entryWidget entryWidget.insert(0,__enterboxDefaultText) # ------------------ ok button ------------------------------- okButton = Button(buttonsFrame, takefocus=1, text="OK") okButton.pack(expand=1, side=LEFT, padx='3m', pady='3m', ipadx='2m', ipady='1m') okButton.bind("" , __enterboxGetText) okButton.bind("", __enterboxGetText) ''' dead code ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # ------------------ (possible) restore button ------------------------------- if default != None: # make a button to restore the default text restoreButton = Button(buttonsFrame, takefocus=1, text="Restore default") restoreButton.pack(expand=1, side=LEFT, padx='3m', pady='3m', ipadx='2m', ipady='1m') restoreButton.bind("" , __enterboxRestore) restoreButton.bind("", __enterboxRestore) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ dead code ''' # ------------------ cancel button ------------------------------- cancelButton = Button(buttonsFrame, takefocus=1, text="Cancel") cancelButton.pack(expand=1, side=RIGHT, padx='3m', pady='3m', ipadx='2m', ipady='1m') cancelButton.bind("" , __enterboxCancel) cancelButton.bind("", __enterboxCancel) # ------------------- time for action! ----------------- entryWidget.focus_force() # put the focus on the entryWidget boxRoot.deiconify() boxRoot.mainloop() # run it! # -------- after the run has completed ---------------------------------- if root: root.deiconify() boxRoot.destroy() # button_click didn't destroy boxRoot, so we do it now return __enterboxText def __enterboxGetText(event): global __enterboxText __enterboxText = entryWidget.get() boxRoot.quit() def __enterboxRestore(event): global entryWidget entryWidget.delete(0,len(entryWidget.get())) entryWidget.insert(0, __enterboxDefaultText) def __enterboxCancel(event): global __enterboxText __enterboxText = None boxRoot.quit() def denyWindowManagerClose(): """ don't allow WindowManager close """ x = Tk() x.withdraw() x.bell() x.destroy() #------------------------------------------------------------------- # multchoicebox #------------------------------------------------------------------- def multchoicebox(msg="Pick as many items as you like." , title=" " , choices=() , **kwargs ): """ Present the user with a list of choices. allow him to select multiple items and return them in a list. if the user doesn't choose anything from the list, return the empty list. return None if he cancelled selection. @arg msg: the msg to be displayed. @arg title: the window title @arg choices: a list or tuple of the choices to be displayed """ if len(choices) == 0: choices = ["Program logic error - no choices were specified."] global __choiceboxMultipleSelect __choiceboxMultipleSelect = 1 return __choicebox(msg, title, choices) #----------------------------------------------------------------------- # choicebox #----------------------------------------------------------------------- def choicebox(msg="Pick something." , title=" " , choices=() , buttons=() ): """ Present the user with a list of choices. return the choice that he selects. return None if he cancels the selection selection. @arg msg: the msg to be displayed. @arg title: the window title @arg choices: a list or tuple of the choices to be displayed """ if len(choices) == 0: choices = ["Program logic error - no choices were specified."] global __choiceboxMultipleSelect __choiceboxMultipleSelect = 0 return __choicebox(msg,title,choices,buttons) #----------------------------------------------------------------------- # __choicebox #----------------------------------------------------------------------- def __choicebox(msg , title , choices , buttons=() ): """ internal routine to support choicebox() and multchoicebox() """ global boxRoot, __choiceboxResults, choiceboxWidget, defaultText global choiceboxWidget, choiceboxChoices #------------------------------------------------------------------- # If choices is a tuple, we make it a list so we can sort it. # If choices is already a list, we make a new list, so that when # we sort the choices, we don't affect the list object that we # were given. #------------------------------------------------------------------- choices = list(choices[:]) if len(choices) == 0: choices = ["Program logic error - no choices were specified."] defaultButtons = ["OK", "Cancel"] # make sure all choices are strings for index in range(len(choices)): choices[index] = str(choices[index]) if buttons: if type(buttons) == type("abc"): # user sent a string choiceboxButtons = [buttons] else: # we assume user sent in a list or tuple of strings choiceboxButtons = buttons else: choiceboxButtons = defaultButtons lines_to_show = min(len(choices), 20) lines_to_show = 20 if title == None: title = "" # Initialize __choiceboxResults # This is the value that will be returned if the user clicks the close icon __choiceboxResults = None boxRoot = Tk() boxRoot.protocol('WM_DELETE_WINDOW', denyWindowManagerClose ) screen_width = boxRoot.winfo_screenwidth() screen_height = boxRoot.winfo_screenheight() root_width = int((screen_width * 0.8)) root_height = int((screen_height * 0.5)) root_xpos = int((screen_width * 0.1)) root_ypos = int((screen_height * 0.05)) boxRoot.title(title) boxRoot.iconname('Dialog') rootWindowPosition = "+0+0" boxRoot.geometry(rootWindowPosition) boxRoot.expand=NO boxRoot.minsize(root_width, root_height) rootWindowPosition = "+" + str(root_xpos) + "+" + str(root_ypos) boxRoot.geometry(rootWindowPosition) # ---------------- put the frames in the window ----------------------------------------- message_and_buttonsFrame = Frame(master=boxRoot) message_and_buttonsFrame.pack(side=TOP, fill=X, expand=NO) messageFrame = Frame(message_and_buttonsFrame) messageFrame.pack(side=LEFT, fill=X, expand=YES) #messageFrame.pack(side=TOP, fill=X, expand=YES) buttonsFrame = Frame(message_and_buttonsFrame) buttonsFrame.pack(side=RIGHT, expand=NO, pady=0) #buttonsFrame.pack(side=TOP, expand=YES, pady=0) choiceboxFrame = Frame(master=boxRoot) choiceboxFrame.pack(side=BOTTOM, fill=BOTH, expand=YES) # -------------------------- put the widgets in the frames ------------------------------ # ---------- put a msg widget in the msg frame------------------- messageWidget = Message(messageFrame, anchor=NW, text=msg, width=int(root_width * 0.9)) messageWidget.configure(font=(PROPORTIONAL_FONT_FAMILY,PROPORTIONAL_FONT_SIZE)) messageWidget.pack(side=LEFT, expand=YES, fill=BOTH, padx='1m', pady='1m') # -------- put the choiceboxWidget in the choiceboxFrame --------------------------- choiceboxWidget = Listbox(choiceboxFrame , height=lines_to_show , borderwidth="1m" , relief="flat" , bg="white" ) if __choiceboxMultipleSelect: choiceboxWidget.configure(selectmode=MULTIPLE) choiceboxWidget.configure(font=(PROPORTIONAL_FONT_FAMILY,PROPORTIONAL_FONT_SIZE)) # add a vertical scrollbar to the frame rightScrollbar = Scrollbar(choiceboxFrame, orient=VERTICAL, command=choiceboxWidget.yview) choiceboxWidget.configure(yscrollcommand = rightScrollbar.set) # add a horizontal scrollbar to the frame bottomScrollbar = Scrollbar(choiceboxFrame, orient=HORIZONTAL, command=choiceboxWidget.xview) choiceboxWidget.configure(xscrollcommand = bottomScrollbar.set) # pack the Listbox and the scrollbars. Note that although we must define # the textbox first, we must pack it last, so that the bottomScrollbar will # be located properly. bottomScrollbar.pack(side=BOTTOM, fill = X) rightScrollbar.pack(side=RIGHT, fill = Y) choiceboxWidget.pack(side=LEFT, padx="1m", pady="1m", expand=YES, fill=BOTH) #--------------------------------------------------- # sort the choices # eliminate duplicates # put the choices into the choiceboxWidget #--------------------------------------------------- for index in range(len(choices)): choices[index] == str(choices[index]) if runningPython3: choices.sort(key=str.lower) else: choices.sort( lambda x,y: cmp(x.lower(), y.lower())) # case-insensitive sort lastInserted = None choiceboxChoices = [] for choice in choices: if choice == lastInserted: pass else: choiceboxWidget.insert(END, choice) choiceboxChoices.append(choice) lastInserted = choice boxRoot.bind('', KeyboardListener) # put the buttons in the buttonsFrame if len(choices) > 0: okButton = Button(buttonsFrame, takefocus=YES, text="OK", height=1, width=6) okButton.pack(expand=NO, side=TOP, padx='2m', pady='1m', ipady="1m", ipadx="2m") okButton.bind("", __choiceboxGetChoice) okButton.bind("",__choiceboxGetChoice) # now bind the keyboard events choiceboxWidget.bind("", __choiceboxGetChoice) choiceboxWidget.bind("", __choiceboxGetChoice) else: # now bind the keyboard events choiceboxWidget.bind("", __choiceboxCancel) choiceboxWidget.bind("", __choiceboxCancel) cancelButton = Button(buttonsFrame, takefocus=YES, text="Cancel", height=1, width=6) cancelButton.pack(expand=NO, side=BOTTOM, padx='2m', pady='1m', ipady="1m", ipadx="2m") cancelButton.bind("", __choiceboxCancel) cancelButton.bind("", __choiceboxCancel) # add special buttons for multiple select features if len(choices) > 0 and __choiceboxMultipleSelect: selectionButtonsFrame = Frame(messageFrame) selectionButtonsFrame.pack(side=RIGHT, fill=Y, expand=NO) selectAllButton = Button(selectionButtonsFrame, text="Select All", height=1, width=6) selectAllButton.bind("",__choiceboxSelectAll) selectAllButton.pack(expand=NO, side=TOP, padx='2m', pady='1m', ipady="1m", ipadx="2m") clearAllButton = Button(selectionButtonsFrame, text="Clear All", height=1, width=6) clearAllButton.bind("",__choiceboxClearAll) clearAllButton.pack(expand=NO, side=TOP, padx='2m', pady='1m', ipady="1m", ipadx="2m") # -------------------- bind some keyboard events ---------------------------- boxRoot.bind("", __choiceboxCancel) # --------------------- the action begins ----------------------------------- # put the focus on the choiceboxWidget, and the select highlight on the first item choiceboxWidget.select_set(0) choiceboxWidget.focus_force() # --- run it! ----- boxRoot.mainloop() boxRoot.destroy() return __choiceboxResults def __choiceboxGetChoice(event): global boxRoot, __choiceboxResults, choiceboxWidget if __choiceboxMultipleSelect: __choiceboxResults = [choiceboxWidget.get(index) for index in choiceboxWidget.curselection()] else: choice_index = choiceboxWidget.curselection() __choiceboxResults = choiceboxWidget.get(choice_index) # writeln("Debugging> mouse-event=", event, " event.type=", event.type) # writeln("Debugging> choice=", choice_index, __choiceboxResults) boxRoot.quit() def __choiceboxSelectAll(event): global choiceboxWidget, choiceboxChoices choiceboxWidget.selection_set(0, len(choiceboxChoices)-1) def __choiceboxClearAll(event): global choiceboxWidget, choiceboxChoices choiceboxWidget.selection_clear(0, len(choiceboxChoices)-1) def __choiceboxCancel(event): global boxRoot, __choiceboxResults __choiceboxResults = None boxRoot.quit() def KeyboardListener(event): global choiceboxChoices, choiceboxWidget key = event.keysym if len(key) <= 1: if key in string.printable: # Find the key in the list. # before we clear the list, remember the selected member try: start_n = int(choiceboxWidget.curselection()[0]) except IndexError: start_n = -1 ## clear the selection. choiceboxWidget.selection_clear(0, 'end') ## start from previous selection +1 for n in range(start_n+1, len(choiceboxChoices)): item = choiceboxChoices[n] if item[0].lower() == key.lower(): choiceboxWidget.selection_set(first=n) choiceboxWidget.see(n) return else: # has not found it so loop from top for n in range(len(choiceboxChoices)): item = choiceboxChoices[n] if item[0].lower() == key.lower(): choiceboxWidget.selection_set(first = n) choiceboxWidget.see(n) return # nothing matched -- we'll look for the next logical choice for n in range(len(choiceboxChoices)): item = choiceboxChoices[n] if item[0].lower() > key.lower(): if n > 0: choiceboxWidget.selection_set(first = (n-1)) else: choiceboxWidget.selection_set(first = 0) choiceboxWidget.see(n) return # still no match (nothing was greater than the key) # we set the selection to the first item in the list lastIndex = len(choiceboxChoices)-1 choiceboxWidget.selection_set(first = lastIndex) choiceboxWidget.see(lastIndex) return #----------------------------------------------------------------------- # exception_format #----------------------------------------------------------------------- def exception_format(): """ Convert exception info into a string suitable for display. """ return "".join(traceback.format_exception( sys.exc_info()[0] , sys.exc_info()[1] , sys.exc_info()[2] )) #----------------------------------------------------------------------- # exceptionbox #----------------------------------------------------------------------- def exceptionbox(msg=None, title=None): """ Display a box that gives information about an exception that has just been raised. The caller may optionally pass in a title for the window, or a msg to accompany the error information. Note that you do not need to (and cannot) pass an exception object as an argument. The latest exception will automatically be used. """ if title == None: title = "Error Report" if msg == None: msg = "An error (exception) has occurred in the program." codebox(msg, title, exception_format()) #------------------------------------------------------------------- # codebox #------------------------------------------------------------------- def codebox(msg="" , title=" " , text="" ): """ Display some text in a monospaced font, with no line wrapping. This function is suitable for displaying code and text that is formatted using spaces. The text parameter should be a string, or a list or tuple of lines to be displayed in the textbox. """ textbox(msg, title, text, codebox=1 ) #------------------------------------------------------------------- # textbox #------------------------------------------------------------------- def textbox(msg="" , title=" " , text="" , codebox=0 ): """ Display some text in a proportional font with line wrapping at word breaks. This function is suitable for displaying general written text. The text parameter should be a string, or a list or tuple of lines to be displayed in the textbox. """ if msg == None: msg = "" if title == None: title = "" global boxRoot, __replyButtonText, __widgetTexts, buttonsFrame global rootWindowPosition choices = ["OK"] __replyButtonText = choices[0] boxRoot = Tk() boxRoot.protocol('WM_DELETE_WINDOW', denyWindowManagerClose ) screen_width = boxRoot.winfo_screenwidth() screen_height = boxRoot.winfo_screenheight() root_width = int((screen_width * 0.8)) root_height = int((screen_height * 0.5)) root_xpos = int((screen_width * 0.1)) root_ypos = int((screen_height * 0.05)) boxRoot.title(title) boxRoot.iconname('Dialog') rootWindowPosition = "+0+0" boxRoot.geometry(rootWindowPosition) boxRoot.expand=NO boxRoot.minsize(root_width, root_height) rootWindowPosition = "+" + str(root_xpos) + "+" + str(root_ypos) boxRoot.geometry(rootWindowPosition) mainframe = Frame(master=boxRoot) mainframe.pack(side=TOP, fill=BOTH, expand=YES) # ---- put frames in the window ----------------------------------- # we pack the textboxFrame first, so it will expand first textboxFrame = Frame(mainframe, borderwidth=3) textboxFrame.pack(side=BOTTOM , fill=BOTH, expand=YES) message_and_buttonsFrame = Frame(mainframe) message_and_buttonsFrame.pack(side=TOP, fill=X, expand=NO) messageFrame = Frame(message_and_buttonsFrame) messageFrame.pack(side=LEFT, fill=X, expand=YES) buttonsFrame = Frame(message_and_buttonsFrame) buttonsFrame.pack(side=RIGHT, expand=NO) # -------------------- put widgets in the frames -------------------- # put a textbox in the top frame if codebox: character_width = int((root_width * 0.6) / MONOSPACE_FONT_SIZE) textbox = Text(textboxFrame,height=25,width=character_width, padx="2m", pady="1m") textbox.configure(wrap=NONE) textbox.configure(font=(MONOSPACE_FONT_FAMILY, MONOSPACE_FONT_SIZE)) else: character_width = int((root_width * 0.6) / MONOSPACE_FONT_SIZE) textbox = Text( textboxFrame , height=25 , width=character_width , padx="2m" , pady="1m" ) textbox.configure(wrap=WORD) textbox.configure(font=(PROPORTIONAL_FONT_FAMILY,PROPORTIONAL_FONT_SIZE)) # some simple keybindings for scrolling mainframe.bind("" , textbox.yview_scroll( 1,PAGES)) mainframe.bind("", textbox.yview_scroll(-1,PAGES)) mainframe.bind("", textbox.xview_scroll( 1,PAGES)) mainframe.bind("" , textbox.xview_scroll(-1,PAGES)) mainframe.bind("", textbox.yview_scroll( 1,UNITS)) mainframe.bind("" , textbox.yview_scroll(-1,UNITS)) # add a vertical scrollbar to the frame rightScrollbar = Scrollbar(textboxFrame, orient=VERTICAL, command=textbox.yview) textbox.configure(yscrollcommand = rightScrollbar.set) # add a horizontal scrollbar to the frame bottomScrollbar = Scrollbar(textboxFrame, orient=HORIZONTAL, command=textbox.xview) textbox.configure(xscrollcommand = bottomScrollbar.set) # pack the textbox and the scrollbars. Note that although we must define # the textbox first, we must pack it last, so that the bottomScrollbar will # be located properly. # Note that we need a bottom scrollbar only for code. # Text will be displayed with wordwrap, so we don't need to have a horizontal # scroll for it. if codebox: bottomScrollbar.pack(side=BOTTOM, fill=X) rightScrollbar.pack(side=RIGHT, fill=Y) textbox.pack(side=LEFT, fill=BOTH, expand=YES) # ---------- put a msg widget in the msg frame------------------- messageWidget = Message(messageFrame, anchor=NW, text=msg, width=int(root_width * 0.9)) messageWidget.configure(font=(PROPORTIONAL_FONT_FAMILY,PROPORTIONAL_FONT_SIZE)) messageWidget.pack(side=LEFT, expand=YES, fill=BOTH, padx='1m', pady='1m') # put the buttons in the buttonsFrame okButton = Button(buttonsFrame, takefocus=YES, text="OK", height=1, width=6) okButton.pack(expand=NO, side=TOP, padx='2m', pady='1m', ipady="1m", ipadx="2m") okButton.bind("" , __textboxOK) okButton.bind("", __textboxOK) okButton.bind("" , __textboxOK) # ----------------- the action begins ---------------------------------------- try: # load the text into the textbox if type(text) == type("abc"): pass else: try: text = "".join(text) # convert a list or a tuple to a string except: msgbox("Exception when trying to convert "+ str(type(text)) + " to text in textbox") sys.exit(16) textbox.insert(END,text, "normal") # disable the textbox, so the text cannot be edited # textbox.configure(state=DISABLED) except: msgbox("Exception when trying to load the textbox.") sys.exit(16) try: okButton.focus_force() except: msgbox("Exception when trying to put focus on okButton.") sys.exit(16) boxRoot.mainloop() boxRoot.destroy() return __replyButtonText #------------------------------------------------------------------- # __textboxOK #------------------------------------------------------------------- def __textboxOK(event): global boxRoot boxRoot.quit() #------------------------------------------------------------------- # diropenbox #------------------------------------------------------------------- def diropenbox(msg=None , title=None , default=None ): """ A dialog to get a directory name. Note that the msg argument, if specified, is ignored. Returns the name of a directory, or None if user chose to cancel. If the "default" argument specifies a directory name, and that directory exists, then the dialog box will start with that directory. """ title=getFileDialogTitle(msg,title) boxRoot = Tk() boxRoot.withdraw() if not default: default = None f = tk_FileDialog.askdirectory( parent=boxRoot , title=title , initialdir=default , initialfile=None ) boxRoot.destroy() if not f: return None return os.path.normpath(f) #------------------------------------------------------------------- # getFileDialogTitle #------------------------------------------------------------------- def getFileDialogTitle(msg , title ): if msg and title: return "%s - %s" % (title,msg) if msg and not title: return str(msg) if title and not msg: return str(title) return None # no message and no title #------------------------------------------------------------------- # class FileTypeObject for use with fileopenbox #------------------------------------------------------------------- class FileTypeObject: def __init__(self,filemask): if len(filemask) == 0: raise AssertionError('Filetype argument is empty.') self.masks = [] if type(filemask) == type("abc"): # a string self.initializeFromString(filemask) elif type(filemask) == type([]): # a list if len(filemask) < 2: raise AssertionError('Invalid filemask.\n' +'List contains less than 2 members: "%s"' % filemask) else: self.name = filemask[-1] self.masks = list(filemask[:-1] ) else: raise AssertionError('Invalid filemask: "%s"' % filemask) def __eq__(self,other): if self.name == other.name: return True return False def add(self,other): for mask in other.masks: if mask in self.masks: pass else: self.masks.append(mask) def toTuple(self): return (self.name,tuple(self.masks)) def isAll(self): if self.name == "All files": return True return False def initializeFromString(self, filemask): # remove everything except the extension from the filemask self.ext = os.path.splitext(filemask)[1] if self.ext == "" : self.ext = ".*" if self.ext == ".": self.ext = ".*" self.name = self.getName() self.masks = ["*" + self.ext] def getName(self): e = self.ext if e == ".*" : return "All files" if e == ".txt": return "Text files" if e == ".py" : return "Python files" if e == ".pyc" : return "Python files" if e == ".xls": return "Excel files" if e.startswith("."): return e[1:].upper() + " files" return e.upper() + " files" #------------------------------------------------------------------- # fileopenbox #------------------------------------------------------------------- def fileopenbox(msg=None , title=None , default="*" , filetypes=None ): """ A dialog to get a file name. About the "default" argument ============================ The "default" argument specifies a filepath that (normally) contains one or more wildcards. fileopenbox will display only files that match the default filepath. If omitted, defaults to "*" (all files in the current directory). WINDOWS EXAMPLE:: ...default="c:/myjunk/*.py" will open in directory c:\myjunk\ and show all Python files. WINDOWS EXAMPLE:: ...default="c:/myjunk/test*.py" will open in directory c:\myjunk\ and show all Python files whose names begin with "test". Note that on Windows, fileopenbox automatically changes the path separator to the Windows path separator (backslash). About the "filetypes" argument ============================== If specified, it should contain a list of items, where each item is either:: - a string containing a filemask # e.g. "*.txt" - a list of strings, where all of the strings except the last one are filemasks (each beginning with "*.", such as "*.txt" for text files, "*.py" for Python files, etc.). and the last string contains a filetype description EXAMPLE:: filetypes = ["*.css", ["*.htm", "*.html", "HTML files"] ] NOTE THAT ========= If the filetypes list does not contain ("All files","*"), it will be added. If the filetypes list does not contain a filemask that includes the extension of the "default" argument, it will be added. For example, if default="*abc.py" and no filetypes argument was specified, then "*.py" will automatically be added to the filetypes argument. @rtype: string or None @return: the name of a file, or None if user chose to cancel @arg msg: the msg to be displayed. @arg title: the window title @arg default: filepath with wildcards @arg filetypes: filemasks that a user can choose, e.g. "*.txt" """ boxRoot = Tk() boxRoot.withdraw() initialbase, initialfile, initialdir, filetypes = fileboxSetup(default,filetypes) #------------------------------------------------------------ # if initialfile contains no wildcards; we don't want an # initial file. It won't be used anyway. # Also: if initialbase is simply "*", we don't want an # initialfile; it is not doing any useful work. #------------------------------------------------------------ if (initialfile.find("*") < 0) and (initialfile.find("?") < 0): initialfile = None elif initialbase == "*": initialfile = None f = tk_FileDialog.askopenfilename(parent=boxRoot , title=getFileDialogTitle(msg,title) , initialdir=initialdir , initialfile=initialfile , filetypes=filetypes ) boxRoot.destroy() if not f: return None return os.path.normpath(f) #------------------------------------------------------------------- # filesavebox #------------------------------------------------------------------- def filesavebox(msg=None , title=None , default="" , filetypes=None ): """ A file to get the name of a file to save. Returns the name of a file, or None if user chose to cancel. The "default" argument should contain a filename (i.e. the current name of the file to be saved). It may also be empty, or contain a filemask that includes wildcards. The "filetypes" argument works like the "filetypes" argument to fileopenbox. """ boxRoot = Tk() boxRoot.withdraw() initialbase, initialfile, initialdir, filetypes = fileboxSetup(default,filetypes) f = tk_FileDialog.asksaveasfilename(parent=boxRoot , title=getFileDialogTitle(msg,title) , initialfile=initialfile , initialdir=initialdir , filetypes=filetypes ) boxRoot.destroy() if not f: return None return os.path.normpath(f) #------------------------------------------------------------------- # # fileboxSetup # #------------------------------------------------------------------- def fileboxSetup(default,filetypes): if not default: default = os.path.join(".","*") initialdir, initialfile = os.path.split(default) if not initialdir : initialdir = "." if not initialfile: initialfile = "*" initialbase, initialext = os.path.splitext(initialfile) initialFileTypeObject = FileTypeObject(initialfile) allFileTypeObject = FileTypeObject("*") ALL_filetypes_was_specified = False if not filetypes: filetypes= [] filetypeObjects = [] for filemask in filetypes: fto = FileTypeObject(filemask) if fto.isAll(): ALL_filetypes_was_specified = True # remember this if fto == initialFileTypeObject: initialFileTypeObject.add(fto) # add fto to initialFileTypeObject else: filetypeObjects.append(fto) #------------------------------------------------------------------ # make sure that the list of filetypes includes the ALL FILES type. #------------------------------------------------------------------ if ALL_filetypes_was_specified: pass elif allFileTypeObject == initialFileTypeObject: pass else: filetypeObjects.insert(0,allFileTypeObject) #------------------------------------------------------------------ # Make sure that the list includes the initialFileTypeObject # in the position in the list that will make it the default. # This changed between Python version 2.5 and 2.6 #------------------------------------------------------------------ if len(filetypeObjects) == 0: filetypeObjects.append(initialFileTypeObject) if initialFileTypeObject in (filetypeObjects[0], filetypeObjects[-1]): pass else: if runningPython26: filetypeObjects.append(initialFileTypeObject) else: filetypeObjects.insert(0,initialFileTypeObject) filetypes = [fto.toTuple() for fto in filetypeObjects] return initialbase, initialfile, initialdir, filetypes #------------------------------------------------------------------- # utility routines #------------------------------------------------------------------- # These routines are used by several other functions in the EasyGui module. def __buttonEvent(event): """ Handle an event that is generated by a person clicking a button. """ global boxRoot, __widgetTexts, __replyButtonText __replyButtonText = __widgetTexts[event.widget] boxRoot.quit() # quit the main loop def __put_buttons_in_buttonframe(choices): """Put the buttons in the buttons frame """ global __widgetTexts, __firstWidget, buttonsFrame __firstWidget = None __widgetTexts = {} i = 0 for buttonText in choices: tempButton = Button(buttonsFrame, takefocus=1, text=buttonText) tempButton.pack(expand=YES, side=LEFT, padx='1m', pady='1m', ipadx='2m', ipady='1m') # remember the text associated with this widget __widgetTexts[tempButton] = buttonText # remember the first widget, so we can put the focus there if i == 0: __firstWidget = tempButton i = 1 # bind the keyboard events to the widget tempButton.bind("", __buttonEvent) tempButton.bind("", __buttonEvent) #----------------------------------------------------------------------- # # class EgStore # #----------------------------------------------------------------------- class EgStore: r""" A class to support persistent storage. You can use EgStore to support the storage and retrieval of user settings for an EasyGui application. # Example A #----------------------------------------------------------------------- # define a class named Settings as a subclass of EgStore #----------------------------------------------------------------------- class Settings(EgStore): def __init__(self, filename): # filename is required #------------------------------------------------- # Specify default/initial values for variables that # this particular application wants to remember. #------------------------------------------------- self.userId = "" self.targetServer = "" #------------------------------------------------- # For subclasses of EgStore, these must be # the last two statements in __init__ #------------------------------------------------- self.filename = filename # this is required self.restore() # restore values from the storage file if possible # Example B #----------------------------------------------------------------------- # create settings, a persistent Settings object #----------------------------------------------------------------------- settingsFile = "myApp_settings.txt" settings = Settings(settingsFile) user = "obama_barak" server = "whitehouse1" settings.userId = user settings.targetServer = server settings.store() # persist the settings # run code that gets a new value for userId, and persist the settings user = "biden_joe" settings.userId = user settings.store() # Example C #----------------------------------------------------------------------- # recover the Settings instance, change an attribute, and store it again. #----------------------------------------------------------------------- settings = Settings(settingsFile) settings.userId = "vanrossum_g" settings.store() """ def __init__(self, filename): # obtaining filename is required raise NotImplementedError() def restore(self): """ Set the values of whatever attributes are recoverable from the pickle file. Populate the attributes (the __dict__) of the EgStore object from the attributes (the __dict__) of the pickled object. If the pickled object has attributes that have been initialized in the EgStore object, then those attributes of the EgStore object will be replaced by the values of the corresponding attributes in the pickled object. If the pickled object is missing some attributes that have been initialized in the EgStore object, then those attributes of the EgStore object will retain the values that they were initialized with. If the pickled object has some attributes that were not initialized in the EgStore object, then those attributes will be ignored. IN SUMMARY: After the recover() operation, the EgStore object will have all, and only, the attributes that it had when it was initialized. Where possible, those attributes will have values recovered from the pickled object. """ if not os.path.exists(self.filename): return self if not os.path.isfile(self.filename): return self try: f = open(self.filename) unpickledObject = pickle.load(f) f.close() for key in list(self.__dict__.keys()): default = self.__dict__[key] self.__dict__[key] = unpickledObject.__dict__.get(key,default) except: pass return self def store(self): """ Save the attributes of the EgStore object to a pickle file. Note that if the directory for the pickle file does not already exist, the store operation will fail. """ f = open(self.filename, "w") pickle.dump(self, f) f.close() def kill(self): """ Delete my persistent file (i.e. pickle file), if it exists. """ if os.path.isfile(self.filename): os.remove(self.filename) return def __str__(self): """ return my contents as a string in an easy-to-read format. """ # find the length of the longest attribute name longest_key_length = 0 keys = [] for key in self.__dict__.keys(): keys.append(key) longest_key_length = max(longest_key_length, len(key)) keys.sort() # sort the attribute names lines = [] for key in keys: value = self.__dict__[key] key = key.ljust(longest_key_length) lines.append("%s : %s\n" % (key,repr(value)) ) return "".join(lines) # return a string showing the attributes #----------------------------------------------------------------------- # # test/demo easygui # #----------------------------------------------------------------------- def egdemo(): """ Run the EasyGui demo. """ # clear the console writeln("\n" * 100) # ============================= define a code snippet ========================= code_snippet = ("dafsdfa dasflkj pp[oadsij asdfp;ij asdfpjkop asdfpok asdfpok asdfpok"*3) +"\n"+\ """# here is some dummy Python code for someItem in myListOfStuff: do something(someItem) do something() do something() if somethingElse(someItem): doSomethingEvenMoreInteresting() """*16 #======================== end of code snippet ============================== #================================= some text =========================== text_snippet = ((\ """It was the best of times, and it was the worst of times. The rich ate cake, and the poor had cake recommended to them, but wished only for enough cash to buy bread. The time was ripe for revolution! """ \ *5)+"\n\n")*10 #===========================end of text ================================ intro_message = ("Pick the kind of box that you wish to demo.\n" + "\n * Python version " + sys.version + "\n * EasyGui version " + egversion + "\n * Tk version " + str(TkVersion) ) #========================================== END DEMONSTRATION DATA while 1: # do forever choices = [ "msgbox", "buttonbox", "buttonbox(image) -- a buttonbox that displays an image", "choicebox", "multchoicebox", "textbox", "ynbox", "ccbox", "enterbox", "enterbox(image) -- an enterbox that displays an image", "exceptionbox", "codebox", "integerbox", "boolbox", "indexbox", "filesavebox", "fileopenbox", "passwordbox", "multenterbox", "multpasswordbox", "diropenbox", "About EasyGui", " Help" ] choice = choicebox(msg=intro_message , title="EasyGui " + egversion , choices=choices) if not choice: return reply = choice.split() if reply[0] == "msgbox": reply = msgbox("short msg", "This is a long title") writeln("Reply was: %s" % repr(reply)) elif reply[0] == "About": reply = abouteasygui() elif reply[0] == "Help": _demo_help() elif reply[0] == "buttonbox": reply = buttonbox() writeln("Reply was: %s" % repr(reply)) title = "Demo of Buttonbox with many, many buttons!" msg = "This buttonbox shows what happens when you specify too many buttons." reply = buttonbox(msg=msg, title=title, choices=choices) writeln("Reply was: %s" % repr(reply)) elif reply[0] == "buttonbox(image)": _demo_buttonbox_with_image() elif reply[0] == "boolbox": reply = boolbox() writeln("Reply was: %s" % repr(reply)) elif reply[0] == "enterbox": image = "python_and_check_logo.gif" message = "Enter the name of your best friend."\ "\n(Result will be stripped.)" reply = enterbox(message, "Love!", " Suzy Smith ") writeln("Reply was: %s" % repr(reply)) message = "Enter the name of your best friend."\ "\n(Result will NOT be stripped.)" reply = enterbox(message, "Love!", " Suzy Smith ",strip=False) writeln("Reply was: %s" % repr(reply)) reply = enterbox("Enter the name of your worst enemy:", "Hate!") writeln("Reply was: %s" % repr(reply)) elif reply[0] == "enterbox(image)": image = "python_and_check_logo.gif" message = "What kind of snake is this?" reply = enterbox(message, "Quiz",image=image) writeln("Reply was: %s" % repr(reply)) elif reply[0] == "exceptionbox": try: thisWillCauseADivideByZeroException = 1/0 except: exceptionbox() elif reply[0] == "integerbox": reply = integerbox( "Enter a number between 3 and 333", "Demo: integerbox WITH a default value", 222, 3, 333) writeln("Reply was: %s" % repr(reply)) reply = integerbox( "Enter a number between 0 and 99", "Demo: integerbox WITHOUT a default value" ) writeln("Reply was: %s" % repr(reply)) elif reply[0] == "diropenbox" : _demo_diropenbox() elif reply[0] == "fileopenbox": _demo_fileopenbox() elif reply[0] == "filesavebox": _demo_filesavebox() elif reply[0] == "indexbox": title = reply[0] msg = "Demo of " + reply[0] choices = ["Choice1", "Choice2", "Choice3", "Choice4"] reply = indexbox(msg, title, choices) writeln("Reply was: %s" % repr(reply)) elif reply[0] == "passwordbox": reply = passwordbox("Demo of password box WITHOUT default" + "\n\nEnter your secret password", "Member Logon") writeln("Reply was: %s" % str(reply)) reply = passwordbox("Demo of password box WITH default" + "\n\nEnter your secret password", "Member Logon", "alfie") writeln("Reply was: %s" % str(reply)) elif reply[0] == "multenterbox": msg = "Enter your personal information" title = "Credit Card Application" fieldNames = ["Name","Street Address","City","State","ZipCode"] fieldValues = [] # we start with blanks for the values fieldValues = multenterbox(msg,title, fieldNames) # make sure that none of the fields was left blank while 1: if fieldValues == None: break errmsg = "" for i in range(len(fieldNames)): if fieldValues[i].strip() == "": errmsg = errmsg + ('"%s" is a required field.\n\n' % fieldNames[i]) if errmsg == "": break # no problems found fieldValues = multenterbox(errmsg, title, fieldNames, fieldValues) writeln("Reply was: %s" % str(fieldValues)) elif reply[0] == "multpasswordbox": msg = "Enter logon information" title = "Demo of multpasswordbox" fieldNames = ["Server ID", "User ID", "Password"] fieldValues = [] # we start with blanks for the values fieldValues = multpasswordbox(msg,title, fieldNames) # make sure that none of the fields was left blank while 1: if fieldValues == None: break errmsg = "" for i in range(len(fieldNames)): if fieldValues[i].strip() == "": errmsg = errmsg + ('"%s" is a required field.\n\n' % fieldNames[i]) if errmsg == "": break # no problems found fieldValues = multpasswordbox(errmsg, title, fieldNames, fieldValues) writeln("Reply was: %s" % str(fieldValues)) elif reply[0] == "ynbox": title = "Demo of ynbox" msg = "Were you expecting the Spanish Inquisition?" reply = ynbox(msg, title) writeln("Reply was: %s" % repr(reply)) if reply: msgbox("NOBODY expects the Spanish Inquisition!", "Wrong!") elif reply[0] == "ccbox": title = "Demo of ccbox" reply = ccbox(msg,title) writeln("Reply was: %s" % repr(reply)) elif reply[0] == "choicebox": title = "Demo of choicebox" longchoice = "This is an example of a very long option which you may or may not wish to choose."*2 listChoices = ["nnn", "ddd", "eee", "fff", "aaa", longchoice , "aaa", "bbb", "ccc", "ggg", "hhh", "iii", "jjj", "kkk", "LLL", "mmm" , "nnn", "ooo", "ppp", "qqq", "rrr", "sss", "ttt", "uuu", "vvv"] msg = "Pick something. " + ("A wrapable sentence of text ?! "*30) + "\nA separate line of text."*6 reply = choicebox(msg=msg, choices=listChoices) writeln("Reply was: %s" % repr(reply)) msg = "Pick something. " reply = choicebox(msg=msg, title=title, choices=listChoices) writeln("Reply was: %s" % repr(reply)) msg = "Pick something. " reply = choicebox(msg="The list of choices is empty!", choices=[]) writeln("Reply was: %s" % repr(reply)) elif reply[0] == "multchoicebox": listChoices = ["aaa", "bbb", "ccc", "ggg", "hhh", "iii", "jjj", "kkk" , "LLL", "mmm" , "nnn", "ooo", "ppp", "qqq" , "rrr", "sss", "ttt", "uuu", "vvv"] msg = "Pick as many choices as you wish." reply = multchoicebox(msg,"Demo of multchoicebox", listChoices) writeln("Reply was: %s" % repr(reply)) elif reply[0] == "textbox": title = "Demo of textbox" msg = "Here is some sample text. " * 16 reply = textbox(msg, "Text Sample", text_snippet) writeln("Reply was: %s" % repr(reply)) elif reply[0] == "codebox": msg = "Here is some sample code. " * 16 reply = codebox(msg, "Code Sample", code_snippet) writeln("Reply was: %s" % repr(reply)) else: msgbox("Choice\n\n" + choice + "\n\nis not recognized", "Program Logic Error") return def _demo_buttonbox_with_image(): image = "python_and_check_logo.gif" msg = "Pretty nice, huh!" reply=msgbox(msg,image=image, ok_button="Wow!") writeln("Reply was: %s" % repr(reply)) msg = "Do you like this picture?" choices = ["Yes","No","No opinion"] reply=buttonbox(msg,image=image,choices=choices) writeln("Reply was: %s" % repr(reply)) image = os.path.normpath("python_and_check_logo.png") reply=buttonbox(msg,image=image, choices=choices) writeln("Reply was: %s" % repr(reply)) image = os.path.normpath("zzzzz.gif") reply=buttonbox(msg,image=image, choices=choices) writeln("Reply was: %s" % repr(reply)) def _demo_help(): savedStdout = sys.stdout # save the sys.stdout file object sys.stdout = capturedOutput = StringIO() help("easygui") sys.stdout = savedStdout # restore the sys.stdout file object codebox("EasyGui Help",text=capturedOutput.getvalue()) def _demo_filesavebox(): filename = "myNewFile.txt" title = "File SaveAs" msg ="Save file as:" f = filesavebox(msg,title,default=filename) writeln("You chose to save file: %s" % f) def _demo_diropenbox(): title = "Demo of diropenbox" msg = "Pick the directory that you wish to open." d = diropenbox(msg, title) writeln("You chose directory...: %s" % d) d = diropenbox(msg, title,default="./") writeln("You chose directory...: %s" % d) d = diropenbox(msg, title,default="c:/") writeln("You chose directory...: %s" % d) def _demo_fileopenbox(): msg = "Python files" title = "Open files" default="*.py" f = fileopenbox(msg,title,default=default) writeln("You chose to open file: %s" % f) default="./*.gif" filetypes = ["*.jpg",["*.zip","*.tgs","*.gz", "Archive files"],["*.htm", "*.html","HTML files"]] f = fileopenbox(msg,title,default=default,filetypes=filetypes) writeln("You chose to open file: %s" % f) """#deadcode -- testing ---------------------------------------- f = fileopenbox(None,None,default=default) writeln("You chose to open file: %s" % f) f = fileopenbox(None,title,default=default) writeln("You chose to open file: %s" % f) f = fileopenbox(msg,None,default=default) writeln("You chose to open file: %s" % f) f = fileopenbox(default=default) writeln("You chose to open file: %s" % f) f = fileopenbox(default=None) writeln("You chose to open file: %s" % f) #----------------------------------------------------deadcode """ def _dummy(): pass EASYGUI_ABOUT_INFORMATION = ''' ======================================================================== 0.93(2009-07-07) ======================================================================== ENHANCEMENTS ------------------------------------------------------ * Added exceptionbox to display stack trace of exceptions * modified names of some font-related constants to make it easier to customize them ======================================================================== 0.92(2009-06-22) ======================================================================== ENHANCEMENTS ------------------------------------------------------ * Added EgStore class to to provide basic easy-to-use persistence. BUG FIXES ------------------------------------------------------ * Fixed a bug that was preventing Linux users from copying text out of a textbox and a codebox. This was not a problem for Windows users. ======================================================================== version: 0.91(2009-04-25) ======================================================================== ENHANCEMENTS ------------------------------------------------------ * exposed egdemo(). Now you can write a program like this: from easygui import * egdemo() # run the easygui demo BUG FIXES ------------------------------------------------------ * Removed some fileopenbox test code that was accidentally left in, causing egdemo to crash. * Made EasyGui "version 2.5 aware" so that it will use the correct default filemask in fileopenbox and filesavebox under Python 2.5 and earlier. * fixed bugs in filesavebox by converting it to use the same code as fileopenbox for handling the "default" and "filetypes" args. ======================================================================== version: 0.90(2009-04-20) ======================================================================== ENHANCEMENTS ------------------------------------------------------ * Enhanced fileopenbox to allow it to accept multiple extensions for a single file type, e.g.: ... filetype = [[".htm",".html", "HTML filetypes"]] Previously it accepted only one. BUG FIXES ------------------------------------------------------ * Fixed a bug in fileopenbox (it was not displaying initialfile). Thanks to Matthias Meier in the lovely city of Schwerin, Germany (http://en.wikipedia.org/wiki/Schwerin) for reporting the problem and supplying the basic elements of the fix. * In fileopenbox, removed acceptance of a 1-tuple as a filetype. This was an unnecessary and confusing feature. In theory, this change will break backward compatibility ... but there are probably no programs that used this feature. NOTES ---------------------------------------------------------- In some cases (e.g. ... default="junk.txt") there are minor differences in the display of fileopenbox between Python version 2.5 on the one hand, and Python version 2.6 and higher on the other. Python versions 2.6+ behave correctly. ======================================================================== version 0.89(2009-04-09) ======================================================================== BUG FIX ------------------------------------------------------ * An enhancement in version 0.88 (which added an import of StringIO) broke compatibility with Python 3. "In Python 3, the StringIO and cStringIO modules are gone. Instead, import the io module and use io.StringIO or io.BytesIO for text and data respectively." Many thanks to Alan Gauld, author of the "Learn to Program" web site (http://www.alan-g.me.uk/l2p) for reporting this problem and supplying the fix. ======================================================================== version 0.88(2009-04-06) ======================================================================== ENHANCEMENTS ------------------------------------------------------ * Support for display of images has been extended to the various flavors of enterbox. An example of an enterbox with an image was added to the EasyGui demo. MODIFICATIONS ------------------------------------------------------ * In EasyGui demo, HELP output is now captured and displayed in a codebox rather than being written to stdout. BUG FIX ------------------------------------------------------ * Fixed a bug in fileopenbox. Thanks to Dennis A. Wolf for both the bug report and the fix. ======================================================================== version 0.87(2009-03-18) ======================================================================== ENHANCEMENTS ------------------------------------------------------ * EasyGui will now run under Python version 3.* as well as version 2.* BUG FIXES ------------------------------------------------------ * added support for "root" argument to msgbox, buttonbox, and enterbox. This feature is not yet documented or very well tested -- it should be considered experimental/beta. ''' def abouteasygui(): """ shows the easygui revision history """ codebox("About EasyGui\n"+egversion,"EasyGui",EASYGUI_ABOUT_INFORMATION) return None if __name__ == '__main__': if True: egdemo() else: # test the new root feature root = Tk() msg = """This is a test of a main Tk() window in which we will place an easygui msgbox. It will be an interesting experiment.\n\n""" messageWidget = Message(root, text=msg, width=1000) messageWidget.pack(side=TOP, expand=YES, fill=X, padx='3m', pady='3m') messageWidget = Message(root, text=msg, width=1000) messageWidget.pack(side=TOP, expand=YES, fill=X, padx='3m', pady='3m') msgbox("this is a test of passing in boxRoot", root=root) msgbox("this is a second test of passing in boxRoot", root=root) reply = enterbox("Enter something", root=root) writeln("You wrote:", reply) reply = enterbox("Enter something else", root=root) writeln("You wrote:", reply) root.destroy()