summaryrefslogtreecommitdiffstats
path: root/Lib/lib-tk/tkSimpleDialog.py
diff options
context:
space:
mode:
authorGuido van Rossum <guido@python.org>1997-08-12 18:21:21 (GMT)
committerGuido van Rossum <guido@python.org>1997-08-12 18:21:21 (GMT)
commitf55afae3c6999779a75af6236f947a663af9db65 (patch)
tree79a99d813b64bf4c439745cb72b368af854a5220 /Lib/lib-tk/tkSimpleDialog.py
parent9d9af2c7a897dc3071cad8277e463da4f7f5b61b (diff)
downloadcpython-f55afae3c6999779a75af6236f947a663af9db65.zip
cpython-f55afae3c6999779a75af6236f947a663af9db65.tar.gz
cpython-f55afae3c6999779a75af6236f947a663af9db65.tar.bz2
New dialog from Fred Lundh
Diffstat (limited to 'Lib/lib-tk/tkSimpleDialog.py')
-rw-r--r--Lib/lib-tk/tkSimpleDialog.py212
1 files changed, 212 insertions, 0 deletions
diff --git a/Lib/lib-tk/tkSimpleDialog.py b/Lib/lib-tk/tkSimpleDialog.py
new file mode 100644
index 0000000..68f414a
--- /dev/null
+++ b/Lib/lib-tk/tkSimpleDialog.py
@@ -0,0 +1,212 @@
+#
+# An Introduction to Tkinter
+# tkSimpleDialog.py
+#
+# Copyright (c) 1997 by Fredrik Lundh
+#
+# fredrik@pythonware.com
+# http://www.pythonware.com
+#
+
+# --------------------------------------------------------------------
+# dialog base class
+
+from Tkinter import *
+import os
+
+class Dialog(Toplevel):
+
+ def __init__(self, parent, title = None):
+
+ Toplevel.__init__(self, parent)
+ self.transient(parent)
+
+ if title:
+ self.title(title)
+
+ self.parent = parent
+
+ self.result = None
+
+ body = Frame(self)
+ self.initial_focus = self.body(body)
+ body.pack(padx=5, pady=5)
+
+ self.buttonbox()
+
+ self.grab_set()
+
+ if not self.initial_focus:
+ self.initial_focus = self
+
+ self.protocol("WM_DELETE_WINDOW", self.cancel)
+
+ self.geometry("+%d+%d" % (parent.winfo_rootx()+50,
+ parent.winfo_rooty()+50))
+
+ self.initial_focus.focus_set()
+
+ self.wait_window(self)
+
+ #
+ # construction hooks
+
+ def body(self, master):
+ # create dialog body. return widget that should have
+ # initial focus. this method should be overridden
+
+ pass
+
+ def buttonbox(self):
+ # add standard button box. override if you don't want the
+ # standard buttons
+
+ box = Frame(self)
+
+ w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE)
+ w.pack(side=LEFT, padx=5, pady=5)
+ w = Button(box, text="Cancel", width=10, command=self.cancel)
+ w.pack(side=LEFT, padx=5, pady=5)
+
+ self.bind("<Return>", self.ok)
+ self.bind("<Escape>", self.cancel)
+
+ box.pack()
+
+ #
+ # standard button semantics
+
+ def ok(self, event=None):
+
+ if not self.validate():
+ self.initial_focus.focus_set() # put focus back
+ return
+
+ self.withdraw()
+ self.update_idletasks()
+
+ self.apply()
+
+ self.cancel()
+
+ def cancel(self, event=None):
+
+ # put focus back to the parent window
+ self.parent.focus_set()
+ self.destroy()
+
+ #
+ # command hooks
+
+ def validate(self):
+
+ return 1 # override
+
+ def apply(self):
+
+ pass # override
+
+
+# --------------------------------------------------------------------
+# convenience dialogues
+
+import string
+
+class _QueryDialog(Dialog):
+
+ def __init__(self, title, prompt,
+ minvalue = None, maxvalue = None,
+ parent = None):
+
+ from Tkinter import _default_root
+
+ if not parent:
+ parent = _default_root
+
+ self.prompt = prompt
+ self.minvalue = minvalue
+ self.maxvalue = maxvalue
+
+ Dialog.__init__(self, parent, title)
+
+ def body(self, master):
+
+ w = Label(master, text=self.prompt)
+ w.grid(row=0, padx=5, sticky=W)
+
+ self.entry = Entry(master, name="entry")
+ self.entry.grid(row=1, padx=5, sticky=W+E)
+
+ return self.entry
+
+ def validate(self):
+
+ import tkMessageBox
+
+ try:
+ result = self.getresult()
+ except ValueError:
+ tkMessageBox.showwarning(
+ "Bad value",
+ self.errormessage + "\nPlease try again",
+ parent = self
+ )
+ return 0
+
+ if self.minvalue is not None and result < self.minvalue:
+ tkMessageBox.showwarning(
+ "Too small",
+ "The allowed minimum value is %s. "
+ "Please try again" % self.minvalue,
+ parent = self
+ )
+ return 0
+
+ if self.maxvalue is not None and result > self.maxvalue:
+ tkMessageBox.showwarning(
+ "Bad value",
+ "The allowed maximum value is %s. "
+ "Please try again" % self.maxvalue,
+ parent = self
+ )
+ return 0
+
+ self.result = result
+
+ return 1
+
+
+class _QueryInteger(_QueryDialog):
+ errormessage = "Invalid integer"
+ def getresult(self):
+ return string.atoi(self.entry.get())
+
+def askinteger(title, prompt, **kw):
+ d = apply(_QueryInteger, (title, prompt), kw)
+ return d.result
+
+class _QueryFloat(_QueryDialog):
+ errormessage = "Invalid floating point value"
+ def getresult(self):
+ return string.atof(self.entry.get())
+
+def askfloat(title, prompt, **kw):
+ d = apply(_QueryFloat, (title, prompt), kw)
+ return d.result
+
+class _QueryString(_QueryDialog):
+ def getresult(self):
+ return self.entry.get()
+
+def askstring(title, prompt, **kw):
+ d = apply(_QueryString, (title, prompt), kw)
+ return d.result
+
+if __name__ == "__main__":
+
+ root = Tk()
+ root.update()
+
+ print askinteger("Spam", "Egg count")
+ print askfloat("Spam", "Egg weight")
+ print askstring("Spam", "Egg label")