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AutoComplete.py	8.79 KB	-rw-r--r--
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AutoComplete.pyo	7.69 KB	-rw-r--r--
AutoCompleteWindow.py	16.8 KB	-rw-r--r--
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AutoCompleteWindow.pyo	12.09 KB	-rw-r--r--
AutoExpand.py	2.42 KB	-rw-r--r--
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AutoExpand.pyo	2.5 KB	-rw-r--r--
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Bindings.pyo	4.76 KB	-rw-r--r--
CREDITS.txt	1.82 KB	-rw-r--r--
CallTipWindow.py	5.98 KB	-rw-r--r--
CallTipWindow.pyc	6.14 KB	-rw-r--r--
CallTipWindow.pyo	6.14 KB	-rw-r--r--
CallTips.py	7.75 KB	-rw-r--r--
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ChangeLog	55.07 KB	-rw-r--r--
ClassBrowser.py	6.22 KB	-rw-r--r--
ClassBrowser.pyc	8.95 KB	-rw-r--r--
ClassBrowser.pyo	8.95 KB	-rw-r--r--
CodeContext.py	8.15 KB	-rw-r--r--
CodeContext.pyc	6.52 KB	-rw-r--r--
CodeContext.pyo	6.47 KB	-rw-r--r--
ColorDelegator.py	10.13 KB	-rw-r--r--
ColorDelegator.pyc	8.71 KB	-rw-r--r--
ColorDelegator.pyo	8.71 KB	-rw-r--r--
Debugger.py	15.45 KB	-rw-r--r--
Debugger.pyc	16.55 KB	-rw-r--r--
Debugger.pyo	16.55 KB	-rw-r--r--
Delegator.py	831 B	-rw-r--r--
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Delegator.pyo	1.58 KB	-rw-r--r--
EditorWindow.py	63.29 KB	-rw-r--r--
EditorWindow.pyc	55.13 KB	-rw-r--r--
EditorWindow.pyo	55.03 KB	-rw-r--r--
FileList.py	3.57 KB	-rw-r--r--
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FileList.pyo	3.82 KB	-rw-r--r--
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FormatParagraph.pyo	4.69 KB	-rw-r--r--
GrepDialog.py	3.96 KB	-rw-r--r--
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GrepDialog.pyo	4.9 KB	-rw-r--r--
HISTORY.txt	10.08 KB	-rw-r--r--
HyperParser.py	10.31 KB	-rw-r--r--
HyperParser.pyc	6.49 KB	-rw-r--r--
HyperParser.pyo	6.49 KB	-rw-r--r--
IOBinding.py	20.69 KB	-rw-r--r--
IOBinding.pyc	17.16 KB	-rw-r--r--
IOBinding.pyo	17.16 KB	-rw-r--r--
IdleHistory.py	3.07 KB	-rw-r--r--
IdleHistory.pyc	3.13 KB	-rw-r--r--
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MultiCall.py	17.07 KB	-rw-r--r--
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MultiStatusBar.py	783 B	-rw-r--r--
MultiStatusBar.pyc	1.49 KB	-rw-r--r--
MultiStatusBar.pyo	1.49 KB	-rw-r--r--
NEWS.txt	28.32 KB	-rw-r--r--
ObjectBrowser.py	4.05 KB	-rw-r--r--
ObjectBrowser.pyc	6.56 KB	-rw-r--r--
ObjectBrowser.pyo	6.56 KB	-rw-r--r--
OutputWindow.py	4.47 KB	-rw-r--r--
OutputWindow.pyc	5.11 KB	-rw-r--r--
OutputWindow.pyo	5.11 KB	-rw-r--r--
ParenMatch.py	6.47 KB	-rw-r--r--
ParenMatch.pyc	6.82 KB	-rw-r--r--
ParenMatch.pyo	6.82 KB	-rw-r--r--
PathBrowser.py	2.58 KB	-rw-r--r--
PathBrowser.pyc	4.02 KB	-rw-r--r--
PathBrowser.pyo	4.02 KB	-rw-r--r--
Percolator.py	2.55 KB	-rw-r--r--
Percolator.pyc	3.55 KB	-rw-r--r--
Percolator.pyo	3.37 KB	-rw-r--r--
PyParse.py	19.05 KB	-rw-r--r--
PyParse.pyc	9.77 KB	-rw-r--r--
PyParse.pyo	9.34 KB	-rw-r--r--
PyShell.py	54.81 KB	-rw-r--r--
PyShell.pyc	49.14 KB	-rw-r--r--
PyShell.pyo	49.04 KB	-rw-r--r--
README.txt	2.56 KB	-rw-r--r--
RemoteDebugger.py	11.38 KB	-rw-r--r--
RemoteDebugger.pyc	15.97 KB	-rw-r--r--
RemoteDebugger.pyo	15.82 KB	-rw-r--r--
RemoteObjectBrowser.py	942 B	-rw-r--r--
RemoteObjectBrowser.pyc	2.1 KB	-rw-r--r--
RemoteObjectBrowser.pyo	2.1 KB	-rw-r--r--
ReplaceDialog.py	5.69 KB	-rw-r--r--
ReplaceDialog.pyc	6.32 KB	-rw-r--r--
ReplaceDialog.pyo	6.32 KB	-rw-r--r--
RstripExtension.py	824 B	-rw-r--r--
RstripExtension.pyc	1.45 KB	-rw-r--r--
RstripExtension.pyo	1.45 KB	-rw-r--r--
ScriptBinding.py	8.22 KB	-rw-r--r--
ScriptBinding.pyc	7.96 KB	-rw-r--r--
ScriptBinding.pyo	7.96 KB	-rw-r--r--
ScrolledList.py	3.9 KB	-rw-r--r--
ScrolledList.pyc	6.03 KB	-rw-r--r--
ScrolledList.pyo	6.03 KB	-rw-r--r--
SearchDialog.py	1.99 KB	-rw-r--r--
SearchDialog.pyc	2.93 KB	-rw-r--r--
SearchDialog.pyo	2.93 KB	-rw-r--r--
SearchDialogBase.py	4.28 KB	-rw-r--r--
SearchDialogBase.pyc	5.37 KB	-rw-r--r--
SearchDialogBase.pyo	5.37 KB	-rw-r--r--
SearchEngine.py	6.57 KB	-rw-r--r--
SearchEngine.pyc	7.02 KB	-rw-r--r--
SearchEngine.pyo	7.02 KB	-rw-r--r--
StackViewer.py	3.77 KB	-rw-r--r--
StackViewer.pyc	5.79 KB	-rw-r--r--
StackViewer.pyo	5.79 KB	-rw-r--r--
TODO.txt	8.28 KB	-rw-r--r--
ToolTip.py	2.67 KB	-rw-r--r--
ToolTip.pyc	4.05 KB	-rw-r--r--
ToolTip.pyo	4.05 KB	-rw-r--r--
TreeWidget.py	14.87 KB	-rw-r--r--
TreeWidget.pyc	17.48 KB	-rw-r--r--
TreeWidget.pyo	17.48 KB	-rw-r--r--
UndoDelegator.py	10.04 KB	-rw-r--r--
UndoDelegator.pyc	12.27 KB	-rw-r--r--
UndoDelegator.pyo	12.27 KB	-rw-r--r--
WidgetRedirector.py	4.37 KB	-rw-r--r--
WidgetRedirector.pyc	5.23 KB	-rw-r--r--
WidgetRedirector.pyo	5.23 KB	-rw-r--r--
WindowList.py	2.42 KB	-rw-r--r--
WindowList.pyc	3.55 KB	-rw-r--r--
WindowList.pyo	3.55 KB	-rw-r--r--
ZoomHeight.py	1.28 KB	-rw-r--r--
ZoomHeight.pyc	1.61 KB	-rw-r--r--
ZoomHeight.pyo	1.61 KB	-rw-r--r--
__init__.py	37 B	-rw-r--r--
__init__.pyc	127 B	-rw-r--r--
__init__.pyo	127 B	-rw-r--r--
aboutDialog.py	6.42 KB	-rw-r--r--
aboutDialog.pyc	6.63 KB	-rw-r--r--
aboutDialog.pyo	6.63 KB	-rw-r--r--
config-extensions.def	2.72 KB	-rw-r--r--
config-highlight.def	1.7 KB	-rw-r--r--
config-keys.def	7.35 KB	-rw-r--r--
config-main.def	2.45 KB	-rw-r--r--
configDialog.py	52.23 KB	-rw-r--r--
configDialog.pyc	43.81 KB	-rw-r--r--
configDialog.pyo	43.81 KB	-rw-r--r--
configHandler.py	28.68 KB	-rw-r--r--
configHandler.pyc	26.83 KB	-rw-r--r--
configHandler.pyo	26.83 KB	-rw-r--r--
configHelpSourceEdit.py	6.52 KB	-rw-r--r--
configHelpSourceEdit.pyc	6.56 KB	-rw-r--r--
configHelpSourceEdit.pyo	6.56 KB	-rw-r--r--
configSectionNameDialog.py	3.63 KB	-rw-r--r--
configSectionNameDialog.pyc	4.21 KB	-rw-r--r--
configSectionNameDialog.pyo	4.21 KB	-rw-r--r--
dynOptionMenuWidget.py	1.27 KB	-rw-r--r--
dynOptionMenuWidget.pyc	1.66 KB	-rw-r--r--
dynOptionMenuWidget.pyo	1.66 KB	-rw-r--r--
extend.txt	3.56 KB	-rw-r--r--
help.txt	11.72 KB	-rw-r--r--
idle.py	400 B	-rw-r--r--
idle.pyc	406 B	-rw-r--r--
idle.pyo	406 B	-rw-r--r--
idle.pyw	664 B	-rw-r--r--
idlever.py	23 B	-rw-r--r--
idlever.pyc	159 B	-rw-r--r--
idlever.pyo	159 B	-rw-r--r--
keybindingDialog.py	12.12 KB	-rw-r--r--
keybindingDialog.pyc	12.05 KB	-rw-r--r--
keybindingDialog.pyo	12.05 KB	-rw-r--r--
macosxSupport.py	6.08 KB	-rw-r--r--
macosxSupport.pyc	6.25 KB	-rw-r--r--
macosxSupport.pyo	6.25 KB	-rw-r--r--
rpc.py	19.75 KB	-rw-r--r--
rpc.pyc	21.26 KB	-rw-r--r--
rpc.pyo	21.16 KB	-rw-r--r--
run.py	11.54 KB	-rw-r--r--
run.pyc	12.14 KB	-rw-r--r--
run.pyo	12.08 KB	-rw-r--r--
tabbedpages.py	17.76 KB	-rw-r--r--
tabbedpages.pyc	17.67 KB	-rw-r--r--
tabbedpages.pyo	17.67 KB	-rw-r--r--
textView.py	3.46 KB	-rw-r--r--
textView.pyc	4.2 KB	-rw-r--r--
textView.pyo	4.2 KB	-rw-r--r--

Code Editor : UndoDelegator.py

import string
from Tkinter import *

from idlelib.Delegator import Delegator

#$ event <<redo>>
#$ win <Control-y>
#$ unix <Alt-z>

#$ event <<undo>>
#$ win <Control-z>
#$ unix <Control-z>

#$ event <<dump-undo-state>>
#$ win <Control-backslash>
#$ unix <Control-backslash>

class UndoDelegator(Delegator):

max_undo = 1000

def __init__(self):
        Delegator.__init__(self)
        self.reset_undo()

def setdelegate(self, delegate):
        if self.delegate is not None:
            self.unbind("<<undo>>")
            self.unbind("<<redo>>")
            self.unbind("<<dump-undo-state>>")
        Delegator.setdelegate(self, delegate)
        if delegate is not None:
            self.bind("<<undo>>", self.undo_event)
            self.bind("<<redo>>", self.redo_event)
            self.bind("<<dump-undo-state>>", self.dump_event)

def dump_event(self, event):
        from pprint import pprint
        pprint(self.undolist[:self.pointer])
        print "pointer:", self.pointer,
        print "saved:", self.saved,
        print "can_merge:", self.can_merge,
        print "get_saved():", self.get_saved()
        pprint(self.undolist[self.pointer:])
        return "break"

def reset_undo(self):
        self.was_saved = -1
        self.pointer = 0
        self.undolist = []
        self.undoblock = 0  # or a CommandSequence instance
        self.set_saved(1)

def set_saved(self, flag):
        if flag:
            self.saved = self.pointer
        else:
            self.saved = -1
        self.can_merge = False
        self.check_saved()

def get_saved(self):
        return self.saved == self.pointer

saved_change_hook = None

def set_saved_change_hook(self, hook):
        self.saved_change_hook = hook

was_saved = -1

def check_saved(self):
        is_saved = self.get_saved()
        if is_saved != self.was_saved:
            self.was_saved = is_saved
            if self.saved_change_hook:
                self.saved_change_hook()

def insert(self, index, chars, tags=None):
        self.addcmd(InsertCommand(index, chars, tags))

def delete(self, index1, index2=None):
        self.addcmd(DeleteCommand(index1, index2))

# Clients should call undo_block_start() and undo_block_stop()
    # around a sequence of editing cmds to be treated as a unit by
    # undo & redo.  Nested matching calls are OK, and the inner calls
    # then act like nops.  OK too if no editing cmds, or only one
    # editing cmd, is issued in between:  if no cmds, the whole
    # sequence has no effect; and if only one cmd, that cmd is entered
    # directly into the undo list, as if undo_block_xxx hadn't been
    # called.  The intent of all that is to make this scheme easy
    # to use:  all the client has to worry about is making sure each
    # _start() call is matched by a _stop() call.

def undo_block_start(self):
        if self.undoblock == 0:
            self.undoblock = CommandSequence()
        self.undoblock.bump_depth()

def undo_block_stop(self):
        if self.undoblock.bump_depth(-1) == 0:
            cmd = self.undoblock
            self.undoblock = 0
            if len(cmd) > 0:
                if len(cmd) == 1:
                    # no need to wrap a single cmd
                    cmd = cmd.getcmd(0)
                # this blk of cmds, or single cmd, has already
                # been done, so don't execute it again
                self.addcmd(cmd, 0)

def addcmd(self, cmd, execute=True):
        if execute:
            cmd.do(self.delegate)
        if self.undoblock != 0:
            self.undoblock.append(cmd)
            return
        if self.can_merge and self.pointer > 0:
            lastcmd = self.undolist[self.pointer-1]
            if lastcmd.merge(cmd):
                return
        self.undolist[self.pointer:] = [cmd]
        if self.saved > self.pointer:
            self.saved = -1
        self.pointer = self.pointer + 1
        if len(self.undolist) > self.max_undo:
            ##print "truncating undo list"
            del self.undolist[0]
            self.pointer = self.pointer - 1
            if self.saved >= 0:
                self.saved = self.saved - 1
        self.can_merge = True
        self.check_saved()

def undo_event(self, event):
        if self.pointer == 0:
            self.bell()
            return "break"
        cmd = self.undolist[self.pointer - 1]
        cmd.undo(self.delegate)
        self.pointer = self.pointer - 1
        self.can_merge = False
        self.check_saved()
        return "break"

def redo_event(self, event):
        if self.pointer >= len(self.undolist):
            self.bell()
            return "break"
        cmd = self.undolist[self.pointer]
        cmd.redo(self.delegate)
        self.pointer = self.pointer + 1
        self.can_merge = False
        self.check_saved()
        return "break"

class Command:

# Base class for Undoable commands

tags = None

def __init__(self, index1, index2, chars, tags=None):
        self.marks_before = {}
        self.marks_after = {}
        self.index1 = index1
        self.index2 = index2
        self.chars = chars
        if tags:
            self.tags = tags

def __repr__(self):
        s = self.__class__.__name__
        t = (self.index1, self.index2, self.chars, self.tags)
        if self.tags is None:
            t = t[:-1]
        return s + repr(t)

def do(self, text):
        pass

def redo(self, text):
        pass

def undo(self, text):
        pass

def merge(self, cmd):
        return 0

def save_marks(self, text):
        marks = {}
        for name in text.mark_names():
            if name != "insert" and name != "current":
                marks[name] = text.index(name)
        return marks

def set_marks(self, text, marks):
        for name, index in marks.items():
            text.mark_set(name, index)

class InsertCommand(Command):

# Undoable insert command

def __init__(self, index1, chars, tags=None):
        Command.__init__(self, index1, None, chars, tags)

def do(self, text):
        self.marks_before = self.save_marks(text)
        self.index1 = text.index(self.index1)
        if text.compare(self.index1, ">", "end-1c"):
            # Insert before the final newline
            self.index1 = text.index("end-1c")
        text.insert(self.index1, self.chars, self.tags)
        self.index2 = text.index("%s+%dc" % (self.index1, len(self.chars)))
        self.marks_after = self.save_marks(text)
        ##sys.__stderr__.write("do: %s\n" % self)

def redo(self, text):
        text.mark_set('insert', self.index1)
        text.insert(self.index1, self.chars, self.tags)
        self.set_marks(text, self.marks_after)
        text.see('insert')
        ##sys.__stderr__.write("redo: %s\n" % self)

def undo(self, text):
        text.mark_set('insert', self.index1)
        text.delete(self.index1, self.index2)
        self.set_marks(text, self.marks_before)
        text.see('insert')
        ##sys.__stderr__.write("undo: %s\n" % self)

def merge(self, cmd):
        if self.__class__ is not cmd.__class__:
            return False
        if self.index2 != cmd.index1:
            return False
        if self.tags != cmd.tags:
            return False
        if len(cmd.chars) != 1:
            return False
        if self.chars and \
           self.classify(self.chars[-1]) != self.classify(cmd.chars):
            return False
        self.index2 = cmd.index2
        self.chars = self.chars + cmd.chars
        return True

alphanumeric = string.ascii_letters + string.digits + "_"

def classify(self, c):
        if c in self.alphanumeric:
            return "alphanumeric"
        if c == "\n":
            return "newline"
        return "punctuation"

class DeleteCommand(Command):

# Undoable delete command

def __init__(self, index1, index2=None):
        Command.__init__(self, index1, index2, None, None)

def do(self, text):
        self.marks_before = self.save_marks(text)
        self.index1 = text.index(self.index1)
        if self.index2:
            self.index2 = text.index(self.index2)
        else:
            self.index2 = text.index(self.index1 + " +1c")
        if text.compare(self.index2, ">", "end-1c"):
            # Don't delete the final newline
            self.index2 = text.index("end-1c")
        self.chars = text.get(self.index1, self.index2)
        text.delete(self.index1, self.index2)
        self.marks_after = self.save_marks(text)
        ##sys.__stderr__.write("do: %s\n" % self)

def redo(self, text):
        text.mark_set('insert', self.index1)
        text.delete(self.index1, self.index2)
        self.set_marks(text, self.marks_after)
        text.see('insert')
        ##sys.__stderr__.write("redo: %s\n" % self)

def undo(self, text):
        text.mark_set('insert', self.index1)
        text.insert(self.index1, self.chars)
        self.set_marks(text, self.marks_before)
        text.see('insert')
        ##sys.__stderr__.write("undo: %s\n" % self)

class CommandSequence(Command):

# Wrapper for a sequence of undoable cmds to be undone/redone
    # as a unit

def __init__(self):
        self.cmds = []
        self.depth = 0

def __repr__(self):
        s = self.__class__.__name__
        strs = []
        for cmd in self.cmds:
            strs.append("    %r" % (cmd,))
        return s + "(\n" + ",\n".join(strs) + "\n)"

def __len__(self):
        return len(self.cmds)

def append(self, cmd):
        self.cmds.append(cmd)

def getcmd(self, i):
        return self.cmds[i]

def redo(self, text):
        for cmd in self.cmds:
            cmd.redo(text)

def undo(self, text):
        cmds = self.cmds[:]
        cmds.reverse()
        for cmd in cmds:
            cmd.undo(text)

def bump_depth(self, incr=1):
        self.depth = self.depth + incr
        return self.depth

def main():
    from idlelib.Percolator import Percolator
    root = Tk()
    root.wm_protocol("WM_DELETE_WINDOW", root.quit)
    text = Text()
    text.pack()
    text.focus_set()
    p = Percolator(text)
    d = UndoDelegator()
    p.insertfilter(d)
    root.mainloop()

if __name__ == "__main__":
    main()

${this.title}

Code Editor : UndoDelegator.py