302 lines
9.8 KiB
Python
302 lines
9.8 KiB
Python
# changes by dscherer@cmu.edu
|
|
# - IOBinding.open() replaces the current window with the opened file,
|
|
# if the current window is both unmodified and unnamed
|
|
# - IOBinding.loadfile() interprets Windows, UNIX, and Macintosh
|
|
# end-of-line conventions, instead of relying on the standard library,
|
|
# which will only understand the local convention.
|
|
|
|
import os
|
|
import tempfile
|
|
import tkFileDialog
|
|
import tkMessageBox
|
|
import re
|
|
from configHandler import idleConf
|
|
|
|
#$ event <<open-window-from-file>>
|
|
#$ win <Control-o>
|
|
#$ unix <Control-x><Control-f>
|
|
|
|
#$ event <<save-window>>
|
|
#$ win <Control-s>
|
|
#$ unix <Control-x><Control-s>
|
|
|
|
#$ event <<save-window-as-file>>
|
|
#$ win <Alt-s>
|
|
#$ unix <Control-x><Control-w>
|
|
|
|
#$ event <<print-window>>
|
|
#$ win <Control-p>
|
|
#$ unix <Control-x><Control-p>
|
|
|
|
#$ event <<save-copy-of-window-as-file>>
|
|
#$ win <Alt-Shift-s>
|
|
#$ unix <Control-x><w>
|
|
|
|
|
|
class IOBinding:
|
|
|
|
def __init__(self, editwin):
|
|
self.editwin = editwin
|
|
self.text = editwin.text
|
|
self.__id_open = self.text.bind("<<open-window-from-file>>", self.open)
|
|
self.__id_save = self.text.bind("<<save-window>>", self.save)
|
|
self.__id_saveas = self.text.bind("<<save-window-as-file>>",
|
|
self.save_as)
|
|
self.__id_savecopy = self.text.bind("<<save-copy-of-window-as-file>>",
|
|
self.save_a_copy)
|
|
self.__id_print = self.text.bind("<<print-window>>", self.print_window)
|
|
|
|
def close(self):
|
|
# Undo command bindings
|
|
self.text.unbind("<<open-window-from-file>>", self.__id_open)
|
|
self.text.unbind("<<save-window>>", self.__id_save)
|
|
self.text.unbind("<<save-window-as-file>>",self.__id_saveas)
|
|
self.text.unbind("<<save-copy-of-window-as-file>>", self.__id_savecopy)
|
|
self.text.unbind("<<print-window>>", self.__id_print)
|
|
# Break cycles
|
|
self.editwin = None
|
|
self.text = None
|
|
self.filename_change_hook = None
|
|
|
|
def get_saved(self):
|
|
return self.editwin.get_saved()
|
|
|
|
def set_saved(self, flag):
|
|
self.editwin.set_saved(flag)
|
|
|
|
def reset_undo(self):
|
|
self.editwin.reset_undo()
|
|
|
|
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.set_saved(1)
|
|
if self.filename_change_hook:
|
|
self.filename_change_hook()
|
|
|
|
def open(self, event=None, editFile=None):
|
|
if self.editwin.flist:
|
|
if not editFile:
|
|
filename = self.askopenfile()
|
|
else:
|
|
filename=editFile
|
|
if filename:
|
|
# if the current window has no filename and hasn't been
|
|
# modified, we replace it's contents (no loss). Otherwise
|
|
# we open a new window.
|
|
if not self.filename and self.get_saved():
|
|
self.editwin.flist.open(filename, self.loadfile)
|
|
else:
|
|
self.editwin.flist.open(filename)
|
|
else:
|
|
self.text.focus_set()
|
|
|
|
return "break"
|
|
# Code for use outside IDLE:
|
|
if self.get_saved():
|
|
reply = self.maybesave()
|
|
if reply == "cancel":
|
|
self.text.focus_set()
|
|
return "break"
|
|
if not editFile:
|
|
filename = self.askopenfile()
|
|
else:
|
|
filename=editFile
|
|
if filename:
|
|
self.loadfile(filename)
|
|
else:
|
|
self.text.focus_set()
|
|
return "break"
|
|
|
|
def loadfile(self, filename):
|
|
try:
|
|
# open the file in binary mode so that we can handle
|
|
# end-of-line convention ourselves.
|
|
f = open(filename,'rb')
|
|
chars = f.read()
|
|
f.close()
|
|
except IOError, msg:
|
|
tkMessageBox.showerror("I/O Error", str(msg), master=self.text)
|
|
return 0
|
|
|
|
# We now convert all end-of-lines to '\n's
|
|
eol = r"(\r\n)|\n|\r" # \r\n (Windows), \n (UNIX), or \r (Mac)
|
|
chars = re.compile( eol ).sub( r"\n", chars )
|
|
|
|
self.text.delete("1.0", "end")
|
|
self.set_filename(None)
|
|
self.text.insert("1.0", chars)
|
|
self.reset_undo()
|
|
self.set_filename(filename)
|
|
self.text.mark_set("insert", "1.0")
|
|
self.text.see("insert")
|
|
return 1
|
|
|
|
def maybesave(self):
|
|
if self.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.get_saved():
|
|
reply = "cancel"
|
|
self.text.focus_set()
|
|
return reply
|
|
|
|
def save(self, event):
|
|
if not self.filename:
|
|
self.save_as(event)
|
|
else:
|
|
if self.writefile(self.filename):
|
|
self.set_saved(1)
|
|
self.text.focus_set()
|
|
return "break"
|
|
|
|
def save_as(self, event):
|
|
filename = self.asksavefile()
|
|
if filename:
|
|
if self.writefile(filename):
|
|
self.set_filename(filename)
|
|
self.set_saved(1)
|
|
self.text.focus_set()
|
|
return "break"
|
|
|
|
def save_a_copy(self, event):
|
|
filename = self.asksavefile()
|
|
if filename:
|
|
self.writefile(filename)
|
|
self.text.focus_set()
|
|
return "break"
|
|
|
|
def writefile(self, filename):
|
|
self.fixlastline()
|
|
try:
|
|
f = open(filename, "w")
|
|
chars = str(self.text.get("1.0", "end-1c"))
|
|
f.write(chars)
|
|
f.close()
|
|
## print "saved to", `filename`
|
|
return 1
|
|
except IOError, msg:
|
|
tkMessageBox.showerror("I/O Error", str(msg),
|
|
master=self.text)
|
|
return 0
|
|
|
|
def print_window(self, event):
|
|
tempfilename = None
|
|
if self.get_saved():
|
|
filename = self.filename
|
|
else:
|
|
filename = tempfilename = tempfile.mktemp()
|
|
if not self.writefile(filename):
|
|
os.unlink(tempfilename)
|
|
return "break"
|
|
platform=os.name
|
|
printPlatform=1
|
|
if platform == 'posix': #posix platform
|
|
command = idleConf.GetOption('main','General','print-command-posix')
|
|
command = command + " 2>&1"
|
|
elif platform == 'nt': #win32 platform
|
|
command = idleConf.GetOption('main','General','print-command-win')
|
|
else: #no printing for this platform
|
|
printPlatform=0
|
|
if printPlatform: #we can try to print for this platform
|
|
command = command % filename
|
|
pipe = os.popen(command, "r")
|
|
output = pipe.read().strip()
|
|
status = pipe.close()
|
|
if status:
|
|
output = "Printing failed (exit status 0x%x)\n" % status + output
|
|
if output:
|
|
output = "Printing command: %s\n" % repr(command) + output
|
|
tkMessageBox.showerror("Print status", output, master=self.text)
|
|
else: #no printing for this platform
|
|
message="Printing is not enabled for this platform: %s" % platform
|
|
tkMessageBox.showinfo("Print status", message, master=self.text)
|
|
return "break"
|
|
|
|
def fixlastline(self):
|
|
c = self.text.get("end-2c")
|
|
if c != '\n':
|
|
self.text.insert("end-1c", "\n")
|
|
|
|
opendialog = None
|
|
savedialog = None
|
|
|
|
filetypes = [
|
|
("Python and text files", "*.py *.pyw *.txt", "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:
|
|
return os.path.split(self.filename)
|
|
else:
|
|
try:
|
|
pwd = os.getcwd()
|
|
except os.error:
|
|
pwd = ""
|
|
return pwd, ""
|
|
|
|
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():
|
|
root = Tk()
|
|
class MyEditWin:
|
|
def __init__(self, text):
|
|
self.text = text
|
|
self.flist = None
|
|
self.text.bind("<Control-o>", self.open)
|
|
self.text.bind("<Control-s>", self.save)
|
|
self.text.bind("<Alt-s>", self.save_as)
|
|
self.text.bind("<Alt-z>", self.save_a_copy)
|
|
def get_saved(self): return 0
|
|
def set_saved(self, flag): pass
|
|
def reset_undo(self): pass
|
|
def open(self, event):
|
|
self.text.event_generate("<<open-window-from-file>>")
|
|
def save(self, event):
|
|
self.text.event_generate("<<save-window>>")
|
|
def save_as(self, event):
|
|
self.text.event_generate("<<save-window-as-file>>")
|
|
def save_a_copy(self, event):
|
|
self.text.event_generate("<<save-copy-of-window-as-file>>")
|
|
text = Text(root)
|
|
text.pack()
|
|
text.focus_set()
|
|
editwin = MyEditWin(text)
|
|
io = IOBinding(editwin)
|
|
root.mainloop()
|
|
|
|
if __name__ == "__main__":
|
|
from Tkinter import *
|
|
test()
|