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Viewing changes to lib-python/2.4.1/lib-tk/SimpleDialog.py

  • Committer: Bazaar Package Importer
  • Author(s): Alexandre Fayolle
  • Date: 2007-04-13 09:33:09 UTC
  • Revision ID: james.westby@ubuntu.com-20070413093309-yoojh4jcoocu2krz
Tags: upstream-1.0.0
Import upstream version 1.0.0

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lib-python/2.4.1/lib-tk/SimpleDialog.py
 
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"""A simple but flexible modal dialog box."""
 
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from Tkinter import *
 
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class SimpleDialog:
 
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    def __init__(self, master,
 
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                 text='', buttons=[], default=None, cancel=None,
 
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                 title=None, class_=None):
 
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        if class_:
 
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            self.root = Toplevel(master, class_=class_)
 
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        else:
 
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            self.root = Toplevel(master)
 
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        if title:
 
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            self.root.title(title)
 
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            self.root.iconname(title)
 
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        self.message = Message(self.root, text=text, aspect=400)
 
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        self.message.pack(expand=1, fill=BOTH)
 
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        self.frame = Frame(self.root)
 
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        self.frame.pack()
 
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        self.num = default
 
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        self.cancel = cancel
 
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        self.default = default
 
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        self.root.bind('<Return>', self.return_event)
 
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        for num in range(len(buttons)):
 
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            s = buttons[num]
 
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            b = Button(self.frame, text=s,
 
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                       command=(lambda self=self, num=num: self.done(num)))
 
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            if num == default:
 
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                b.config(relief=RIDGE, borderwidth=8)
 
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            b.pack(side=LEFT, fill=BOTH, expand=1)
 
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        self.root.protocol('WM_DELETE_WINDOW', self.wm_delete_window)
 
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        self._set_transient(master)
 
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    def _set_transient(self, master, relx=0.5, rely=0.3):
 
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        widget = self.root
 
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        widget.withdraw() # Remain invisible while we figure out the geometry
 
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        widget.transient(master)
 
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        widget.update_idletasks() # Actualize geometry information
 
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        if master.winfo_ismapped():
 
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            m_width = master.winfo_width()
 
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            m_height = master.winfo_height()
 
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            m_x = master.winfo_rootx()
 
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            m_y = master.winfo_rooty()
 
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        else:
 
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            m_width = master.winfo_screenwidth()
 
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            m_height = master.winfo_screenheight()
 
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            m_x = m_y = 0
 
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        w_width = widget.winfo_reqwidth()
 
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        w_height = widget.winfo_reqheight()
 
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        x = m_x + (m_width - w_width) * relx
 
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        y = m_y + (m_height - w_height) * rely
 
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        if x+w_width > master.winfo_screenwidth():
 
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            x = master.winfo_screenwidth() - w_width
 
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        elif x < 0:
 
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            x = 0
 
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        if y+w_height > master.winfo_screenheight():
 
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            y = master.winfo_screenheight() - w_height
 
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        elif y < 0:
 
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            y = 0
 
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        widget.geometry("+%d+%d" % (x, y))
 
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        widget.deiconify() # Become visible at the desired location
 
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    def go(self):
 
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        self.root.wait_visibility()
 
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        self.root.grab_set()
 
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        self.root.mainloop()
 
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        self.root.destroy()
 
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        return self.num
 
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    def return_event(self, event):
 
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        if self.default is None:
 
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            self.root.bell()
 
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        else:
 
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            self.done(self.default)
 
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    def wm_delete_window(self):
 
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        if self.cancel is None:
 
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            self.root.bell()
 
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        else:
 
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            self.done(self.cancel)
 
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    def done(self, num):
 
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        self.num = num
 
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        self.root.quit()
 
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if __name__ == '__main__':
 
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    def test():
 
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        root = Tk()
 
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        def doit(root=root):
 
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            d = SimpleDialog(root,
 
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                         text="This is a test dialog.  "
 
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                              "Would this have been an actual dialog, "
 
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                              "the buttons below would have been glowing "
 
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                              "in soft pink light.\n"
 
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                              "Do you believe this?",
 
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                         buttons=["Yes", "No", "Cancel"],
 
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                         default=0,
 
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                         cancel=2,
 
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                         title="Test Dialog")
 
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            print d.go()
 
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        t = Button(root, text='Test', command=doit)
 
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        t.pack()
 
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        q = Button(root, text='Quit', command=t.quit)
 
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        q.pack()
 
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        t.mainloop()
 
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    test()