mirror of
https://github.com/python/cpython.git
synced 2024-12-24 01:05:10 +08:00
13205609c5
EditorWindow.py: + Added get_tabwidth & set_tabwidth "virtual text" methods, that get/set the widget's view of what a tab means. + Moved TK_TABWIDTH_DEFAULT here from AutoIndent. + Renamed Mark's get_selection_index to get_selection_indices (sorry, Mark, but the name was plain wrong <wink>). FormatParagraph.py: renamed use of get_selection_index. AutoIndent.py: + Moved TK_TABWIDTH_DEFAULT to EditorWindow. + Rewrote set_indentation_params to use new VTW get/set_tabwidth methods. + Changed smart_backspace_event to delete whitespace back to closest preceding virtual tab stop or real character (note that this may require inserting characters if backspacing over a tab!). + Nuked almost references to the selection tag, in favor of using get_selection_indices. The sole exception is in set_region, for which no "set_selection" abstraction has yet been agreed upon. + Had too much fun using the spiffy new features of the format-paragraph cmd.
685 lines
21 KiB
Python
685 lines
21 KiB
Python
import sys
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import os
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import string
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import re
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import imp
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from Tkinter import *
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import tkSimpleDialog
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import tkMessageBox
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import idlever
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import WindowList
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# The default tab setting for a Text widget, in average-width characters.
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TK_TABWIDTH_DEFAULT = 8
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# File menu
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#$ event <<open-module>>
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#$ win <Alt-m>
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#$ unix <Control-x><Control-m>
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#$ event <<open-class-browser>>
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#$ win <Alt-c>
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#$ unix <Control-x><Control-b>
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#$ event <<open-path-browser>>
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#$ event <<close-window>>
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#$ unix <Control-x><Control-0>
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#$ unix <Control-x><Key-0>
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#$ win <Alt-F4>
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# Edit menu
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#$ event <<Copy>>
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#$ win <Control-c>
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#$ unix <Alt-w>
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#$ event <<Cut>>
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#$ win <Control-x>
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#$ unix <Control-w>
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#$ event <<Paste>>
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#$ win <Control-v>
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#$ unix <Control-y>
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#$ event <<select-all>>
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#$ win <Alt-a>
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#$ unix <Alt-a>
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# Help menu
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#$ event <<help>>
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#$ win <F1>
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#$ unix <F1>
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#$ event <<about-idle>>
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# Events without menu entries
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#$ event <<remove-selection>>
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#$ win <Escape>
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#$ event <<center-insert>>
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#$ win <Control-l>
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#$ unix <Control-l>
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#$ event <<do-nothing>>
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#$ unix <Control-x>
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about_title = "About IDLE"
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about_text = """\
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IDLE %s
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An Integrated DeveLopment Environment for Python
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by Guido van Rossum
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""" % idlever.IDLE_VERSION
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class EditorWindow:
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from Percolator import Percolator
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from ColorDelegator import ColorDelegator
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from UndoDelegator import UndoDelegator
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from IOBinding import IOBinding
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import Bindings
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from Tkinter import Toplevel
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about_title = about_title
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about_text = about_text
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vars = {}
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def __init__(self, flist=None, filename=None, key=None, root=None):
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cprefs = self.ColorDelegator.cprefs
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self.flist = flist
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root = root or flist.root
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self.root = root
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if flist:
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self.vars = flist.vars
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self.menubar = Menu(root)
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self.top = top = self.Toplevel(root, menu=self.menubar)
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self.vbar = vbar = Scrollbar(top, name='vbar')
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self.text = text = Text(top, name='text', padx=5,
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foreground=cprefs.CNormal[0],
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background=cprefs.CNormal[1],
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highlightcolor=cprefs.CHilite[0],
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highlightbackground=cprefs.CHilite[1],
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insertbackground=cprefs.CCursor[1],
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wrap="none")
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self.createmenubar()
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self.apply_bindings()
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self.top.protocol("WM_DELETE_WINDOW", self.close)
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self.top.bind("<<close-window>>", self.close_event)
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text.bind("<<center-insert>>", self.center_insert_event)
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text.bind("<<help>>", self.help_dialog)
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text.bind("<<about-idle>>", self.about_dialog)
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text.bind("<<open-module>>", self.open_module)
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text.bind("<<do-nothing>>", lambda event: "break")
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text.bind("<<select-all>>", self.select_all)
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text.bind("<<remove-selection>>", self.remove_selection)
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text.bind("<3>", self.right_menu_event)
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if flist:
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flist.inversedict[self] = key
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if key:
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flist.dict[key] = self
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text.bind("<<open-new-window>>", self.flist.new_callback)
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text.bind("<<close-all-windows>>", self.flist.close_all_callback)
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text.bind("<<open-class-browser>>", self.open_class_browser)
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text.bind("<<open-path-browser>>", self.open_path_browser)
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vbar['command'] = text.yview
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vbar.pack(side=RIGHT, fill=Y)
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text['yscrollcommand'] = vbar.set
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if sys.platform[:3] == 'win':
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text['font'] = ("lucida console", 8)
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# text['font'] = ("courier new", 10)
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text.pack(side=LEFT, fill=BOTH, expand=1)
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text.focus_set()
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self.per = per = self.Percolator(text)
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if self.ispythonsource(filename):
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self.color = color = self.ColorDelegator(); per.insertfilter(color)
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##print "Initial colorizer"
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else:
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##print "No initial colorizer"
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self.color = None
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self.undo = undo = self.UndoDelegator(); per.insertfilter(undo)
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self.io = io = self.IOBinding(self)
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text.undo_block_start = undo.undo_block_start
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text.undo_block_stop = undo.undo_block_stop
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undo.set_saved_change_hook(self.saved_change_hook)
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io.set_filename_change_hook(self.filename_change_hook)
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if filename:
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if os.path.exists(filename):
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io.loadfile(filename)
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else:
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io.set_filename(filename)
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self.saved_change_hook()
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self.load_extensions()
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menu = self.menudict.get('windows')
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if menu:
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end = menu.index("end")
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if end is None:
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end = -1
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if end >= 0:
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menu.add_separator()
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end = end + 1
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self.wmenu_end = end
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WindowList.register_callback(self.postwindowsmenu)
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# Some abstractions so IDLE extensions are cross-IDE
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self.askyesno = tkMessageBox.askyesno
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self.askinteger = tkSimpleDialog.askinteger
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self.showerror = tkMessageBox.showerror
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if self.extensions.has_key('AutoIndent'):
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self.extensions['AutoIndent'].set_indentation_params(
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self.ispythonsource(filename))
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def wakeup(self):
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if self.top.wm_state() == "iconic":
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self.top.wm_deiconify()
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else:
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self.top.tkraise()
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self.text.focus_set()
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menu_specs = [
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("file", "_File"),
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("edit", "_Edit"),
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("windows", "_Windows"),
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("help", "_Help"),
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]
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def createmenubar(self):
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mbar = self.menubar
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self.menudict = menudict = {}
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for name, label in self.menu_specs:
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underline, label = prepstr(label)
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menudict[name] = menu = Menu(mbar, name=name)
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mbar.add_cascade(label=label, menu=menu, underline=underline)
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self.fill_menus()
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def postwindowsmenu(self):
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# Only called when Windows menu exists
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# XXX Actually, this Just-In-Time updating interferes badly
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# XXX with the tear-off feature. It would be better to update
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# XXX all Windows menus whenever the list of windows changes.
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menu = self.menudict['windows']
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end = menu.index("end")
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if end is None:
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end = -1
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if end > self.wmenu_end:
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menu.delete(self.wmenu_end+1, end)
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WindowList.add_windows_to_menu(menu)
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rmenu = None
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def right_menu_event(self, event):
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self.text.tag_remove("sel", "1.0", "end")
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self.text.mark_set("insert", "@%d,%d" % (event.x, event.y))
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if not self.rmenu:
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self.make_rmenu()
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rmenu = self.rmenu
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self.event = event
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iswin = sys.platform[:3] == 'win'
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if iswin:
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self.text.config(cursor="arrow")
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rmenu.tk_popup(event.x_root, event.y_root)
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if iswin:
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self.text.config(cursor="ibeam")
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rmenu_specs = [
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# ("Label", "<<virtual-event>>"), ...
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("Close", "<<close-window>>"), # Example
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]
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def make_rmenu(self):
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rmenu = Menu(self.text, tearoff=0)
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for label, eventname in self.rmenu_specs:
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def command(text=self.text, eventname=eventname):
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text.event_generate(eventname)
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rmenu.add_command(label=label, command=command)
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self.rmenu = rmenu
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def about_dialog(self, event=None):
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tkMessageBox.showinfo(self.about_title, self.about_text,
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master=self.text)
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helpfile = "help.txt"
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def help_dialog(self, event=None):
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helpfile = self.helpfile
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if not os.path.exists(helpfile):
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base = os.path.basename(self.helpfile)
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for dir in sys.path:
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fullname = os.path.join(dir, base)
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if os.path.exists(fullname):
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helpfile = fullname
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break
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if self.flist:
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self.flist.open(helpfile)
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else:
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self.io.loadfile(helpfile)
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def select_all(self, event=None):
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self.text.tag_add("sel", "1.0", "end-1c")
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self.text.mark_set("insert", "1.0")
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self.text.see("insert")
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return "break"
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def remove_selection(self, event=None):
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self.text.tag_remove("sel", "1.0", "end")
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self.text.see("insert")
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def open_module(self, event=None):
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# XXX Shouldn't this be in IOBinding or in FileList?
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try:
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name = self.text.get("sel.first", "sel.last")
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except TclError:
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name = ""
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else:
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name = string.strip(name)
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if not name:
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name = tkSimpleDialog.askstring("Module",
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"Enter the name of a Python module\n"
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"to search on sys.path and open:",
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parent=self.text)
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if name:
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name = string.strip(name)
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if not name:
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return
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# XXX Ought to support package syntax
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# XXX Ought to insert current file's directory in front of path
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try:
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(f, file, (suffix, mode, type)) = imp.find_module(name)
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except (NameError, ImportError), msg:
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tkMessageBox.showerror("Import error", str(msg), parent=self.text)
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return
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if type != imp.PY_SOURCE:
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tkMessageBox.showerror("Unsupported type",
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"%s is not a source module" % name, parent=self.text)
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return
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if f:
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f.close()
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if self.flist:
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self.flist.open(file)
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else:
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self.io.loadfile(file)
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def open_class_browser(self, event=None):
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filename = self.io.filename
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if not filename:
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tkMessageBox.showerror(
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"No filename",
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"This buffer has no associated filename",
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master=self.text)
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self.text.focus_set()
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return None
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head, tail = os.path.split(filename)
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base, ext = os.path.splitext(tail)
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import ClassBrowser
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ClassBrowser.ClassBrowser(self.flist, base, [head])
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def open_path_browser(self, event=None):
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import PathBrowser
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PathBrowser.PathBrowser(self.flist)
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def gotoline(self, lineno):
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if lineno is not None and lineno > 0:
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self.text.mark_set("insert", "%d.0" % lineno)
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self.text.tag_remove("sel", "1.0", "end")
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self.text.tag_add("sel", "insert", "insert +1l")
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self.center()
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def ispythonsource(self, filename):
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if not filename:
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return 1
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base, ext = os.path.splitext(os.path.basename(filename))
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if os.path.normcase(ext) in (".py", ".pyw"):
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return 1
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try:
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f = open(filename)
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line = f.readline()
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f.close()
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except IOError:
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return 0
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return line[:2] == '#!' and string.find(line, 'python') >= 0
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def close_hook(self):
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if self.flist:
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self.flist.close_edit(self)
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def set_close_hook(self, close_hook):
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self.close_hook = close_hook
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def filename_change_hook(self):
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if self.flist:
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self.flist.filename_changed_edit(self)
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self.saved_change_hook()
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if self.ispythonsource(self.io.filename):
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self.addcolorizer()
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else:
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self.rmcolorizer()
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def addcolorizer(self):
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if self.color:
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return
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##print "Add colorizer"
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self.per.removefilter(self.undo)
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self.color = self.ColorDelegator()
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self.per.insertfilter(self.color)
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self.per.insertfilter(self.undo)
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def rmcolorizer(self):
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if not self.color:
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return
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##print "Remove colorizer"
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self.per.removefilter(self.undo)
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self.per.removefilter(self.color)
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self.color = None
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self.per.insertfilter(self.undo)
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def saved_change_hook(self):
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short = self.short_title()
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long = self.long_title()
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if short and long:
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title = short + " - " + long
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elif short:
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title = short
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elif long:
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title = long
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else:
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title = "Untitled"
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icon = short or long or title
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if not self.get_saved():
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title = "*%s*" % title
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icon = "*%s" % icon
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self.top.wm_title(title)
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self.top.wm_iconname(icon)
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def get_saved(self):
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return self.undo.get_saved()
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def set_saved(self, flag):
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self.undo.set_saved(flag)
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def reset_undo(self):
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self.undo.reset_undo()
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def short_title(self):
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filename = self.io.filename
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if filename:
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filename = os.path.basename(filename)
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return filename
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def long_title(self):
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return self.io.filename or ""
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def center_insert_event(self, event):
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self.center()
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def center(self, mark="insert"):
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text = self.text
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top, bot = self.getwindowlines()
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lineno = self.getlineno(mark)
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height = bot - top
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newtop = max(1, lineno - height/2)
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text.yview(float(newtop))
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def getwindowlines(self):
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text = self.text
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top = self.getlineno("@0,0")
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bot = self.getlineno("@0,65535")
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if top == bot and text.winfo_height() == 1:
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# Geometry manager hasn't run yet
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height = int(text['height'])
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bot = top + height - 1
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return top, bot
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def getlineno(self, mark="insert"):
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text = self.text
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return int(float(text.index(mark)))
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def close_event(self, event):
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self.close()
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def maybesave(self):
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if self.io:
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return self.io.maybesave()
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def close(self):
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self.top.wm_deiconify()
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self.top.tkraise()
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reply = self.maybesave()
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if reply != "cancel":
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WindowList.unregister_callback(self.postwindowsmenu)
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if self.close_hook:
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self.close_hook()
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colorizing = 0
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if self.color:
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colorizing = self.color.colorizing
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doh = colorizing and self.top
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self.color.close(doh) # Cancel colorization
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if not colorizing:
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self.top.destroy()
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return reply
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def load_extensions(self):
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self.extensions = {}
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self.load_standard_extensions()
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def load_standard_extensions(self):
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for name in self.get_standard_extension_names():
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try:
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self.load_extension(name)
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except:
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print "Failed to load extension", `name`
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import traceback
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traceback.print_exc()
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def get_standard_extension_names(self):
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import extend
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return extend.standard
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def load_extension(self, name):
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mod = __import__(name, globals(), locals(), [])
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cls = getattr(mod, name)
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ins = cls(self)
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self.extensions[name] = ins
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kdnames = ["keydefs"]
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if sys.platform == 'win32':
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kdnames.append("windows_keydefs")
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elif sys.platform == 'mac':
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kdnames.append("mac_keydefs")
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else:
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kdnames.append("unix_keydefs")
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keydefs = {}
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for kdname in kdnames:
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if hasattr(ins, kdname):
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keydefs.update(getattr(ins, kdname))
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if keydefs:
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self.apply_bindings(keydefs)
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for vevent in keydefs.keys():
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methodname = string.replace(vevent, "-", "_")
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while methodname[:1] == '<':
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methodname = methodname[1:]
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while methodname[-1:] == '>':
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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()
|