Initial checking of Tk-based Python IDE.
Features: text editor with syntax coloring and undo;
subclassed into interactive Python shell which adds history.
diff --git a/Tools/idle/IOBinding.py b/Tools/idle/IOBinding.py
new file mode 100644
index 0000000..0d61afc
--- /dev/null
+++ b/Tools/idle/IOBinding.py
@@ -0,0 +1,158 @@
+import os
+import tkFileDialog
+import tkMessageBox
+
+
+class IOBinding:
+
+ # Calls to non-standard text methods:
+ # reset_undo()
+ # set_saved(1)
+
+ def __init__(self, text):
+ self.text = text
+ self.text.bind("<<open-window-from-file>>", self.open)
+ self.text.bind("<<save-window>>", self.save)
+ self.text.bind("<<save-window-as-file>>", self.save_as)
+ self.text.bind("<<save-copy-of-window-as-file>>", self.save_a_copy)
+
+ filename_change_hook = None
+
+ def set_filename_change_hook(self, hook):
+ self.filename_change_hook = hook
+
+ filename = None
+
+ def set_filename(self, filename):
+ self.filename = filename
+ self.text.set_saved(1)
+ if self.filename_change_hook:
+ self.filename_change_hook()
+
+ def open(self, event):
+ if not self.text.get_saved():
+ reply = self.maybesave()
+ if reply == "cancel":
+ return "break"
+ filename = self.askopenfile()
+ if filename:
+ self.loadfile(filename)
+ return "break"
+
+ def loadfile(self, filename):
+ try:
+ f = open(filename)
+ chars = f.read()
+ f.close()
+ except IOError, msg:
+ tkMessageBox.showerror("I/O Error", str(msg), master=self.text)
+ return 0
+ self.text.delete("1.0", "end")
+ self.set_filename(None)
+ self.text.insert("1.0", chars)
+ self.text.reset_undo()
+ self.set_filename(filename)
+ self.text.mark_set("insert", "1.0")
+ self.text.see("insert")
+ return 1
+
+ def maybesave(self):
+ if self.text.get_saved():
+ return "yes"
+ message = "Do you want to save %s before closing?" % (
+ self.filename or "this untitled document")
+ m = tkMessageBox.Message(
+ title="Save On Close",
+ message=message,
+ icon=tkMessageBox.QUESTION,
+ type=tkMessageBox.YESNOCANCEL,
+ master=self.text)
+ reply = m.show()
+ if reply == "yes":
+ self.save(None)
+ if not self.text.get_saved():
+ reply = "cancel"
+ return reply
+
+ def save(self, event):
+ if not self.filename:
+ self.save_as(event)
+ else:
+ if self.writefile(self.filename):
+ self.text.set_saved(1)
+ return "break"
+
+ def save_as(self, event):
+ filename = self.asksavefile()
+ if filename:
+ if self.writefile(filename):
+ self.set_filename(filename)
+ self.text.set_saved(1)
+ return "break"
+
+ def save_a_copy(self, event):
+ filename = self.asksavefile()
+ if filename:
+ self.writefile(filename)
+ return "break"
+
+ def writefile(self, filename):
+ try:
+ f = open(filename, "w")
+ chars = self.text.get("1.0", "end-1c")
+ f.write(chars)
+ if chars and chars[-1] != "\n":
+ f.write("\n")
+ f.close()
+ ## print "saved to", `filename`
+ return 1
+ except IOError, msg:
+ tkMessageBox.showerror("I/O Error", str(msg),
+ master=self.text)
+ return 0
+
+ opendialog = None
+ savedialog = None
+
+ filetypes = [
+ ("Python files", "*.py", "TEXT"),
+ ("All text files", "*", "TEXT"),
+ ("All files", "*"),
+ ]
+
+ def askopenfile(self):
+ dir, base = self.defaultfilename("open")
+ if not self.opendialog:
+ self.opendialog = tkFileDialog.Open(master=self.text,
+ filetypes=self.filetypes)
+ return self.opendialog.show(initialdir=dir, initialfile=base)
+
+ def defaultfilename(self, mode="open"):
+ if self.filename:
+ dir, base = os.path.split(self.filename)
+ else:
+ dir = base = ""
+ return dir, base
+
+ def asksavefile(self):
+ dir, base = self.defaultfilename("save")
+ if not self.savedialog:
+ self.savedialog = tkFileDialog.SaveAs(master=self.text,
+ filetypes=self.filetypes)
+ return self.savedialog.show(initialdir=dir, initialfile=base)
+
+
+def test():
+ from Tkinter import *
+ root = Tk()
+ class MyText(Text):
+ def reset_undo(self): pass
+ def set_saved(self, flag): pass
+ text = MyText(root)
+ text.pack()
+ text.focus_set()
+ io = IOBinding(text)
+ root.mainloop()
+
+if __name__ == "__main__":
+ test()