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import os
from Tkinter import *
import tkMessageBox
from EditorWindow import EditorWindow, fixwordbreaks
from IOBinding import IOBinding
class MultiIOBinding(IOBinding):
def open(self, event):
filename = self.askopenfile()
if filename:
self.flist.open(filename, self.edit)
return "break"
class MultiEditorWindow(EditorWindow):
IOBinding = MultiIOBinding
from PopupMenu import PopupMenu
def __init__(self, flist, filename, key):
self.flist = flist
flist.inversedict[self] = key
if key:
flist.dict[key] = self
EditorWindow.__init__(self, flist.root, filename)
self.io.flist = flist
self.io.edit = self
self.popup = self.PopupMenu(self.text, self.flist)
self.text.bind("<<open-new-window>>", self.flist.new_callback)
self.text.bind("<<close-all-windows>>", self.flist.close_all_callback)
def close_hook(self):
self.flist.close_edit(self)
def filename_change_hook(self):
self.flist.filename_changed_edit(self)
EditorWindow.filename_change_hook(self)
class FileList:
def __init__(self, root):
self.root = root
self.dict = {}
self.inversedict = {}
def new(self):
return self.open(None)
def open(self, filename, edit=None):
if filename:
filename = self.canonize(filename)
if os.path.isdir(filename):
tkMessageBox.showerror(
"Is A Directory",
"The path %s is a directory." % `filename`,
master=self.root)
return None
key = os.path.normcase(filename)
if self.dict.has_key(key):
edit = self.dict[key]
edit.top.tkraise()
edit.top.wm_deiconify()
edit.text.focus_set()
return edit
if not os.path.exists(filename):
tkMessageBox.showinfo(
"New File",
"Opening non-existent file %s" % `filename`,
master=self.root)
if edit and not edit.io.filename and edit.undo.get_saved():
# Reuse existing Untitled window for new file
edit.io.loadfile(filename)
self.dict[key] = edit
self.inversedict[edit] = key
edit.top.tkraise()
edit.top.wm_deiconify()
edit.text.focus_set()
return edit
else:
key = None
edit = MultiEditorWindow(self, filename, key)
return edit
def new_callback(self, event):
self.new()
return "break"
def close_all_callback(self, event):
for edit in self.inversedict.keys():
reply = edit.close()
if reply == "cancel":
break
return "break"
def close_edit(self, edit):
try:
key = self.inversedict[edit]
except KeyError:
print "Don't know this EditorWindow object. (close)"
return
if key:
del self.dict[key]
del self.inversedict[edit]
if not self.inversedict:
self.root.quit()
def filename_changed_edit(self, edit):
edit.saved_change_hook()
try:
key = self.inversedict[edit]
except KeyError:
print "Don't know this EditorWindow object. (rename)"
return
filename = edit.io.filename
if not filename:
if key:
del self.dict[key]
self.inversedict[edit] = None
return
filename = self.canonize(filename)
newkey = os.path.normcase(filename)
if newkey == key:
return
if self.dict.has_key(newkey):
conflict = self.dict[newkey]
self.inversedict[conflict] = None
tkMessageBox.showerror(
"Name Conflict",
"You now have multiple edit windows open for %s" % `filename`,
master=self.root)
self.dict[newkey] = edit
self.inversedict[edit] = newkey
if key:
try:
del self.dict[key]
except KeyError:
pass
def canonize(self, filename):
if not os.path.isabs(filename):
try:
pwd = os.getcwd()
except os.error:
pass
else:
filename = os.path.join(pwd, filename)
return os.path.normpath(filename)
def test():
import sys
root = Tk()
fixwordbreaks(root)
root.withdraw()
flist = FileList(root)
if sys.argv[1:]:
for filename in sys.argv[1:]:
flist.open(filename)
else:
flist.new()
if flist.inversedict:
root.mainloop()
if __name__ == '__main__':
test()
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