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"""
Dialog that allows user to specify or edit the parameters for a user configured
help source.
"""
from Tkinter import *
import tkMessageBox
import os
class GetHelpSourceDialog(Toplevel):
def __init__(self,parent,title,menuItem='',filePath=''):
"""
menuItem - string, the menu item to edit, if any
filePath - string, the help file path to edit, if any
"""
Toplevel.__init__(self, parent)
self.configure(borderwidth=5)
self.resizable(height=FALSE,width=FALSE)
self.title(title)
self.transient(parent)
self.grab_set()
self.protocol("WM_DELETE_WINDOW", self.Cancel)
self.parent = parent
self.result=None
self.CreateWidgets()
self.menu.set(menuItem)
self.path.set(filePath)
self.withdraw() #hide while setting geometry
self.update_idletasks()
#needs to be done here so that the winfo_reqwidth is valid
self.geometry("+%d+%d" %
((parent.winfo_rootx()+((parent.winfo_width()/2)
-(self.winfo_reqwidth()/2)),
parent.winfo_rooty()+((parent.winfo_height()/2)
-(self.winfo_reqheight()/2)) )) ) #centre dialog over parent
self.deiconify() #geometry set, unhide
self.wait_window()
def CreateWidgets(self):
self.menu=StringVar(self)
self.path=StringVar(self)
self.fontSize=StringVar(self)
self.frameMain = Frame(self,borderwidth=2,relief=SUNKEN)
self.frameMain.pack(side=TOP,expand=TRUE,fill=BOTH)
labelMenu=Label(self.frameMain,anchor=W,justify=LEFT,
text='Menu Item:')
self.entryMenu=Entry(self.frameMain,textvariable=self.menu,width=30)
self.entryMenu.focus_set()
labelPath=Label(self.frameMain,anchor=W,justify=LEFT,
text='Help File Path:')
self.entryPath=Entry(self.frameMain,textvariable=self.path,width=40)
self.entryMenu.focus_set()
labelMenu.pack(anchor=W,padx=5,pady=3)
self.entryMenu.pack(anchor=W,padx=5,pady=3)
labelPath.pack(anchor=W,padx=5,pady=3)
self.entryPath.pack(anchor=W,padx=5,pady=3)
frameButtons=Frame(self)
frameButtons.pack(side=BOTTOM,fill=X)
self.buttonOk = Button(frameButtons,text='Ok',
width=8,command=self.Ok)
self.buttonOk.grid(row=0,column=0,padx=5,pady=5)
self.buttonCancel = Button(frameButtons,text='Cancel',
width=8,command=self.Cancel)
self.buttonCancel.grid(row=0,column=1,padx=5,pady=5)
def MenuOk(self):
#simple validity check for a sensible
#menu item name
menuOk=1
menu=self.menu.get()
menu.strip()
if not menu: #no menu item specified
tkMessageBox.showerror(title='Menu Item Error',
message='No menu item specified.')
self.entryMenu.focus_set()
menuOk=0
elif len(menu)>30: #menu item name too long
tkMessageBox.showerror(title='Menu Item Error',
message='Menu item too long. It should be no more '+
'than 30 characters.')
self.entryMenu.focus_set()
menuOk=0
return menuOk
def PathOk(self):
#simple validity check for menu file path
pathOk=1
path=self.path.get()
path.strip()
if not path: #no path specified
tkMessageBox.showerror(title='File Path Error',
message='No help file path specified.')
self.entryPath.focus_set()
pathOk=0
elif not os.path.exists(path):
tkMessageBox.showerror(title='File Path Error',
message='Help file path does not exist.')
self.entryPath.focus_set()
pathOk=0
return pathOk
def Ok(self, event=None):
if self.MenuOk():
if self.PathOk():
self.result=( self.menu.get().strip(),self.path.get().strip() )
self.destroy()
def Cancel(self, event=None):
self.result=None
self.destroy()
if __name__ == '__main__':
#test the dialog
root=Tk()
def run():
keySeq=''
dlg=GetHelpSourceDialog(root,'Get Help Source')
print dlg.result
Button(root,text='Dialog',command=run).pack()
root.mainloop()
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