import sys
import os
import string
import re
import imp
from Tkinter import *
import tkSimpleDialog
import tkMessageBox
import idlever
import WindowList
from IdleConf import idleconf
# The default tab setting for a Text widget, in average-width characters.
TK_TABWIDTH_DEFAULT = 8
# File menu
#$ event <<open-module>>
#$ win <Alt-m>
#$ unix <Control-x><Control-m>
#$ event <<open-class-browser>>
#$ win <Alt-c>
#$ unix <Control-x><Control-b>
#$ event <<open-path-browser>>
#$ event <<close-window>>
#$ unix <Control-x><Control-0>
#$ unix <Control-x><Key-0>
#$ win <Alt-F4>
# Edit menu
#$ event <<Copy>>
#$ win <Control-c>
#$ unix <Alt-w>
#$ event <<Cut>>
#$ win <Control-x>
#$ unix <Control-w>
#$ event <<Paste>>
#$ win <Control-v>
#$ unix <Control-y>
#$ event <<select-all>>
#$ win <Alt-a>
#$ unix <Alt-a>
# Help menu
#$ event <<help>>
#$ win <F1>
#$ unix <F1>
#$ event <<about-idle>>
# Events without menu entries
#$ event <<remove-selection>>
#$ win <Escape>
#$ event <<center-insert>>
#$ win <Control-l>
#$ unix <Control-l>
#$ event <<do-nothing>>
#$ unix <Control-x>
about_title = "About IDLE"
about_text = """\
IDLE %s
An Integrated DeveLopment Environment for Python
by Guido van Rossum
""" % idlever.IDLE_VERSION
class EditorWindow:
from Percolator import Percolator
from ColorDelegator import ColorDelegator
from UndoDelegator import UndoDelegator
from IOBinding import IOBinding
import Bindings
from Tkinter import Toplevel
from MultiStatusBar import MultiStatusBar
about_title = about_title
about_text = about_text
vars = {}
def __init__(self, flist=None, filename=None, key=None, root=None):
edconf = idleconf.getsection('EditorWindow')
coconf = idleconf.getsection('Colors')
self.flist = flist
root = root or flist.root
self.root = root
if flist:
self.vars = flist.vars
self.menubar = Menu(root)
self.top = top = self.Toplevel(root, menu=self.menubar)
self.vbar = vbar = Scrollbar(top, name='vbar')
self.text_frame = text_frame = Frame(top)
self.text = text = Text(text_frame, name='text', padx=5,
foreground=coconf.getdef('normal-foreground'),
background=coconf.getdef('normal-background'),
highlightcolor=coconf.getdef('hilite-foreground'),
highlightbackground=coconf.getdef('hilite-background'),
insertbackground=coconf.getdef('cursor-background'),
width=edconf.getint('width'),
height=edconf.getint('height'),
wrap="none")
self.createmenubar()
self.apply_bindings()
self.top.protocol("WM_DELETE_WINDOW", self.close)
self.top.bind("<<close-window>>", self.close_event)
text.bind("<<center-insert>>", self.center_insert_event)
text.bind("<<help>>", self.help_dialog)
text.bind("<<python-docs>>", self.python_docs)
text.bind("<<about-idle>>", self.about_dialog)
text.bind("<<open-module>>", self.open_module)
text.bind("<<do-nothing>>", lambda event: "break")
text.bind("<<select-all>>", self.select_all)
text.bind("<<remove-selection>>", self.remove_selection)
text.bind("<3>", self.right_menu_event)
if flist:
flist.inversedict[self] = key
if key:
flist.dict[key] = self
text.bind("<<open-new-window>>", self.flist.new_callback)
text.bind("<<close-all-windows>>", self.flist.close_all_callback)
text.bind("<<open-class-browser>>", self.open_class_browser)
text.bind("<<open-path-browser>>", self.open_path_browser)
vbar['command'] = text.yview
vbar.pack(side=RIGHT, fill=Y)
text['yscrollcommand'] = vbar.set
text['font'] = edconf.get('font-name'), edconf.get('font-size')
text_frame.pack(side=LEFT, fill=BOTH, expand=1)
text.pack(side=TOP, fill=BOTH, expand=1)
text.focus_set()
self.per = per = self.Percolator(text)
if self.ispythonsource(filename):
self.color = color = self.ColorDelegator(); per.insertfilter(color)
##print "Initial colorizer"
else:
##print "No initial colorizer"
self.color = None
self.undo = undo = self.UndoDelegator(); per.insertfilter(undo)
self.io = io = self.IOBinding(self)
text.undo_block_start = undo.undo_block_start
text.undo_block_stop = undo.undo_block_stop
undo.set_saved_change_hook(self.saved_change_hook)
io.set_filename_change_hook(self.filename_change_hook)
if filename:
if os.path.exists(filename):
io.loadfile(filename)
else:
io.set_filename(filename)
self.saved_change_hook()
self.load_extensions()
menu = self.menudict.get('windows')
if menu:
end = menu.index("end")
if end is None:
end = -1
if end >= 0:
menu.add_separator()
end = end + 1
self.wmenu_end = end
WindowList.register_callback(self.postwindowsmenu)
# Some abstractions so IDLE extensions are cross-IDE
self.askyesno = tkMessageBox.askyesno
self.askinteger = tkSimpleDialog.askinteger
self.showerror = tkMessageBox.showerror
if self.extensions.has_key('AutoIndent'):
self.extensions['AutoIndent'].set_indentation_params(
self.ispythonsource(filename))
self.set_status_bar()
def set_status_bar(self):
self.status_bar = self.MultiStatusBar(self.text_frame)
self.status_bar.set_label('column', 'Col: ?', side=RIGHT)
self.status_bar.set_label('line', 'Ln: ?', side=RIGHT)
self.status_bar.pack(side=BOTTOM, fill=X)
self.text.bind('<KeyRelease>', self.set_line_and_column)
self.text.bind('<ButtonRelease>', self.set_line_and_column)
self.text.after_idle(self.set_line_and_column)
def set_line_and_column(self, event=None):
line, column = string.split(self.text.index(INSERT), '.')
self.status_bar.set_label('column', 'Col: %s' % column)
self.status_bar.set_label('line', 'Ln: %s' % line)
def wakeup(self):
if self.top.wm_state() == "iconic":
self.top.wm_deiconify()
else:
self.top.tkraise()
self.text.focus_set()
menu_specs = [
("file", "_File"),
("edit", "_Edit"),
("windows", "_Windows"),
("help", "_Help"),
]
def createmenubar(self):
mbar = self.menubar
self.menudict = menudict = {}
for name, label in self.menu_specs:
underline, label = prepstr(label)
menudict[name] = menu = Menu(mbar, name=name)
mbar.add_cascade(label=label, menu=menu, underline=underline)
self.fill_menus()
def postwindowsmenu(self):
# Only called when Windows menu exists
# XXX Actually, this Just-In-Time updating interferes badly
# XXX with the tear-off feature. It would be better to update
# XXX all Windows menus whenever the list of windows changes.
menu = self.menudict['windows']
end = menu.index("end")
if end is None:
end = -1
if end > self.wmenu_end:
menu.delete(self.wmenu_end+1, end)
WindowList.add_windows_to_menu(menu)
rmenu = None
def right_menu_event(self, event):
self.text.tag_remove("sel", "1.0", "end")
self.text.mark_set("insert", "@%d,%d" % (event.x, event.y))
if not self.rmenu:
self.make_rmenu()
rmenu = self.rmenu
self.event = event
iswin = sys.platform[:3] == 'win'
if iswin:
self.text.config(cursor="arrow")
rmenu.tk_popup(event.x_root, event.y_root)
if iswin:
self.text.config(cursor="ibeam")
rmenu_specs = [
# ("Label", "<<virtual-event>>"), ...
("Close", "<<close-window>>"), # Example
]
def make_rmenu(self):
rmenu = Menu(self.text, tearoff=0)
for label, eventname in self.rmenu_specs:
def command(text=self.text, eventname=eventname):
text.event_generate(eventname)
rmenu.add_command(label=label, command=command)
self.rmenu = rmenu
def about_dialog(self, event=None):
tkMessageBox.showinfo(self.about_title, self.about_text,
master=self.text)
helpfile = "help.txt"
def help_dialog(self, event=None):
try:
helpfile = os.path.join(os.path.dirname(__file__), self.helpfile)
except NameError:
helpfile = self.helpfile
if self.flist:
self.flist.open(helpfile)
else:
self.io.loadfile(helpfile)
# XXX Fix these for Windows
help_viewer = "netscape -remote 'openurl(%(url)s)' 2>/dev/null || " \
"netscape %(url)s &"
help_url = "http://www.python.org/doc/current/"
def python_docs(self, event=None):
cmd = self.help_viewer % {"url": self.help_url}
os.system(cmd)
def select_all(self, event=None):
self.text.tag_add("sel", "1.0", "end-1c")
self.text.mark_set("insert", "1.0")
self.text.see("insert")
return "break"
def remove_selection(self, event=None):
self.text.tag_remove("sel", "1.0", "end")
self.text.see("insert")
def open_module(self, event=None):
# XXX Shouldn't this be in IOBinding or in FileList?
try:
name = self.text.get("sel.first", "sel.last")
except TclError:
name = ""
else:
name = string.strip(name)
if not name:
name = tkSimpleDialog.askstring("Module",
"Enter the name of a Python module\n"
"to search on sys.path and open:",
parent=self.text)
if name:
name = string.strip(name)
if not name:
return
# XXX Ought to support package syntax
# XXX Ought to insert current file's directory in front of path
try:
(f, file, (suffix, mode, type)) = imp.find_module(name)
except (NameError, ImportError), msg:
tkMessageBox.showerror("Import error", str(msg), parent=self.text)
return
if type != imp.PY_SOURCE:
tkMessageBox.showerror("Unsupported type",
"%s is not a source module" % name, parent=self.text)
return
if f:
f.close()
if self.flist:
self.flist.open(file)
else:
self.io.loadfile(file)
def open_class_browser(self, event=None):
filename = self.io.filename
if not filename:
tkMessageBox.showerror(
"No filename",
"This buffer has no associated filename",
master=self.text)
self.text.focus_set()
return None
head, tail = os.path.split(filename)
base, ext = os.path.splitext(tail)
import ClassBrowser
ClassBrowser.ClassBrowser(self.flist, base, [head])
def open_path_browser(self, event=None):
import PathBrowser
PathBrowser.PathBrowser(self.flist)
def gotoline(self, lineno):
if lineno is not None and lineno > 0:
self.text.mark_set("insert", "%d.0" % lineno)
self.text.tag_remove("sel", "1.0", "end")
self.text.tag_add("sel", "insert", "insert +1l")
self.center()
def ispythonsource(self, filename):
if not filename:
return 1
base, ext = os.path.splitext(os.path.basename(filename))
if os.path.normcase(ext) in (".py", ".pyw"):
return 1
try:
f = open(filename)
line = f.readline()
f.close()
except IOError:
return 0
return line[:2] == '#!' and string.find(line, 'python') >= 0
def close_hook(self):
if self.flist:
self.flist.close_edit(self)
def set_close_hook(self, close_hook):
self.close_hook = close_hook
def filename_change_hook(self):
if self.flist:
self.flist.filename_changed_edit(self)
self.saved_change_hook()
if self.ispythonsource(self.io.filename):
self.addcolorizer()
else:
self.rmcolorizer()
def addcolorizer(self):
if self.color:
return
##print "Add colorizer"
self.per.removefilter(self.undo)
self.color = self.ColorDelegator()
self.per.insertfilter(self.color)
self.per.insertfilter(self.undo)
def rmcolorizer(self):
if not self.color:
return
##print "Remove colorizer"
self.per.removefilter(self.undo)
self.per.removefilter(self.color)
self.color = None
self.per.insertfilter(self.undo)
def saved_change_hook(self):
short = self.short_title()
long = self.long_title()
if short and long:
title = short + " - " + long
elif short:
title = short
elif long:
title = long
else:
title = "Untitled"
icon = short or long or title
if not self.get_saved():
title = "*%s*" % title
icon = "*%s" % icon
self.top.wm_title(title)
self.top.wm_iconname(icon)
def get_saved(self):
return self.undo.get_saved()
def set_saved(self, flag):
self.undo.set_saved(flag)
def reset_undo(self):
self.undo.reset_undo()
def short_title(self):
filename = self.io.filename
if filename:
filename = os.path.basename(filename)
return filename
def long_title(self):
return self.io.filename or ""
def center_insert_event(self, event):
self.center()
def center(self, mark="insert"):
text = self.text
top, bot = self.getwindowlines()
lineno = self.getlineno(mark)
height = bot - top
newtop = max(1, lineno - height/2)
text.yview(float(newtop))
def getwindowlines(self):
text = self.text
top = self.getlineno("@0,0")
bot = self.getlineno("@0,65535")
if top == bot and text.winfo_height() == 1:
# Geometry manager hasn't run yet
height = int(text['height'])
bot = top + height - 1
return top, bot
def getlineno(self, mark="insert"):
text = self.text
return int(float(text.index(mark)))
def close_event(self, event):
self.close()
def maybesave(self):
if self.io:
return self.io.maybesave()
def close(self):
self.top.wm_deiconify()
self.top.tkraise()
reply = self.maybesave()
if reply != "cancel":
self._close()
return reply
def _close(self):
WindowList.unregister_callback(self.postwindowsmenu)
if self.close_hook:
self.close_hook()
self.flist = None
colorizing = 0
self.unload_extensions()
self.io.close(); self.io = None
self.undo = None # XXX
if self.color:
colorizing = self.color.colorizing
doh = colorizing and self.top
self.color.close(doh) # Cancel colorization
self.text = None
self.vars = None
self.per.close(); self.per = None
if not colorizing:
self.top.destroy()
def load_extensions(self):
self.extensions = {}
self.load_standard_extensions()
def unload_extensions(self):
for ins in self.extensions.values():
if hasattr(ins, "close"):
ins.close()
self.extensions = {}
def load_standard_extensions(self):
for name in self.get_standard_extension_names():
try:
self.load_extension(name)
except:
print "Failed to load extension", `name`
import traceback
traceback.print_exc()
def get_standard_extension_names(self):
return idleconf.getextensions()
def load_extension(self, name):
mod = __import__(name, globals(), locals(), [])
cls = getattr(mod, name)
ins = cls(self)
self.extensions[name] = ins
kdnames = ["keydefs"]
if sys.platform == 'win32':
kdnames.append("windows_keydefs")
elif sys.platform == 'mac':
kdnames.append("mac_keydefs")
else:
kdnames.append("unix_keydefs")
keydefs = {}
for kdname in kdnames:
if hasattr(ins, kdname):
keydefs.update(getattr(ins, kdname))
if keydefs:
self.apply_bindings(keydefs)
for vevent in keydefs.keys():
methodname = string.replace(vevent, "-", "_")
while methodname[:1] == '<':
methodname = methodname[1:]
while methodname[-1:] == '>':
methodname = methodname[:-1]
methodname = methodname + "_event"
if hasattr(ins, methodname):
self.text.bind(vevent, getattr(ins, methodname))
if hasattr(ins, "menudefs"):
self.fill_menus(ins.menudefs, keydefs)
return ins
def apply_bindings(self, keydefs=None):
if keydefs is None:
keydefs = self.Bindings.default_keydefs
text = self.text
text.keydefs = keydefs
for event, keylist in keydefs.items():
if keylist:
apply(text.event_add, (event,) + tuple(keylist))
def fill_menus(self, defs=None, keydefs=None):
# Fill the menus. Menus that are absent or None in
# self.menudict are ignored.
if defs is None:
defs = self.Bindings.menudefs
if keydefs is None:
keydefs = self.Bindings.default_keydefs
menudict = self.menudict
text = self.text
for mname, itemlist in defs:
menu = menudict.get(mname)
if not menu:
continue
for item in itemlist:
if not item:
menu.add_separator()
else:
label, event = item
checkbutton = (label[:1] == '!')
if checkbutton:
label = label[1:]
underline, label = prepstr(label)
accelerator = get_accelerator(keydefs, event)
def command(text=text, event=event):
text.event_generate(event)
if checkbutton:
var = self.getrawvar(event, BooleanVar)
menu.add_checkbutton(label=label, underline=underline,
command=command, accelerator=accelerator,
variable=var)
else:
menu.add_command(label=label, underline=underline,
command=command, accelerator=accelerator)
def getvar(self, name):
var = self.getrawvar(name)
if var:
return var.get()
def setvar(self, name, value, vartype=None):
var = self.getrawvar(name, vartype)
if var:
var.set(value)
def getrawvar(self, name, vartype=None):
var = self.vars.get(name)
if not var and vartype:
self.vars[name] = var = vartype(self.text)
return var
# Tk implementations of "virtual text methods" -- each platform
# reusing IDLE's support code needs to define these for its GUI's
# flavor of widget.
# Is character at text_index in a Python string? Return 0 for
# "guaranteed no", true for anything else. This info is expensive
# to compute ab initio, but is probably already known by the
# platform's colorizer.
def is_char_in_string(self, text_index):
if self.color:
# Return true iff colorizer hasn't (re)gotten this far
# yet, or the character is tagged as being in a string
return self.text.tag_prevrange("TODO", text_index) or \
"STRING" in self.text.tag_names(text_index)
else:
# The colorizer is missing: assume the worst
return 1
# If a selection is defined in the text widget, return (start,
# end) as Tkinter text indices, otherwise return (None, None)
def get_selection_indices(self):
try:
first = self.text.index("sel.first")
last = self.text.index("sel.last")
return first, last
except TclError:
return None, None
# Return the text widget's current view of what a tab stop means
# (equivalent width in spaces).
def get_tabwidth(self):
current = self.text['tabs'] or TK_TABWIDTH_DEFAULT
return int(current)
# Set the text widget's current view of what a tab stop means.
def set_tabwidth(self, newtabwidth):
text = self.text
if self.get_tabwidth() != newtabwidth:
pixels = text.tk.call("font", "measure", text["font"],
"-displayof", text.master,
"n" * newtabwith)
text.configure(tabs=pixels)
def prepstr(s):
# Helper to extract the underscore from a string, e.g.
# prepstr("Co_py") returns (2, "Copy").
i = string.find(s, '_')
if i >= 0:
s = s[:i] + s[i+1:]
return i, s
keynames = {
'bracketleft': '[',
'bracketright': ']',
'slash': '/',
}
def get_accelerator(keydefs, event):
keylist = keydefs.get(event)
if not keylist:
return ""
s = keylist[0]
s = re.sub(r"-[a-z]\b", lambda m: string.upper(m.group()), s)
s = re.sub(r"\b\w+\b", lambda m: keynames.get(m.group(), m.group()), s)
s = re.sub("Key-", "", s)
s = re.sub("Control-", "Ctrl-", s)
s = re.sub("-", "+", s)
s = re.sub("><", " ", s)
s = re.sub("<", "", s)
s = re.sub(">", "", s)
return s
def fixwordbreaks(root):
# Make sure that Tk's double-click and next/previous word
# operations use our definition of a word (i.e. an identifier)
tk = root.tk
tk.call('tcl_wordBreakAfter', 'a b', 0) # make sure word.tcl is loaded
tk.call('set', 'tcl_wordchars', '[a-zA-Z0-9_]')
tk.call('set', 'tcl_nonwordchars', '[^a-zA-Z0-9_]')
def test():
root = Tk()
fixwordbreaks(root)
root.withdraw()
if sys.argv[1:]:
filename = sys.argv[1]
else:
filename = None
edit = EditorWindow(root=root, filename=filename)
edit.set_close_hook(root.quit)
root.mainloop()
root.destroy()
if __name__ == '__main__':
test()
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