--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Mac/Tools/IDE/PyDebugger.py	Sat Jan 30 22:39:17 1999 +0000
@@ -0,0 +1,887 @@
+import sys
+import bdb
+import types
+import os
+
+import W
+import WASTEconst
+import PyBrowser
+import Qd
+import Evt
+import Lists
+import MacOS
+_filenames = {}
+
+SIMPLE_TYPES = (
+	types.NoneType,
+	types.IntType,
+	types.LongType,
+	types.FloatType,
+	types.ComplexType,
+	types.StringType
+)
+
+
+class Debugger(bdb.Bdb):
+	
+	def __init__(self, title = 'Debugger'):
+		bdb.Bdb.__init__(self)
+		self.closed = 1
+		self.title = title
+		self.breaksviewer = None
+		self.reset()
+		self.tracing = 0
+		self.tracingmonitortime = Evt.TickCount()
+		self.editors = {}
+		
+		prefs = W.getapplication().getprefs()
+		if prefs.debugger:
+			for file, breaks in prefs.debugger.breaks.items():
+				for b in breaks:
+					self.set_break(file, b)
+			self.bounds, self.horpanes, self.verpanes = prefs.debugger.windowsettings
+			self.tracemagic = prefs.debugger.tracemagic
+		else:
+			self.breaks = {}
+			self.horpanes = (0.4, 0.6)
+			self.verpanes = (0.3, 0.35, 0.35)
+			self.bounds = (600, 400)
+			self.tracemagic = 0
+		self.laststacksel = None
+	
+	def reset(self):
+		self.currentframe = None
+		self.file = None
+		self.laststack = None
+		self.reason = 'Not running'
+		self.continuewithoutdebugger = 0
+		bdb.Bdb.reset(self)
+		self.forget()
+	
+	def start(self, bottomframe = None, running = 0):
+		W.getapplication().DebuggerQuit = bdb.BdbQuit
+		import Menu
+		Menu.HiliteMenu(0)
+		if self.closed:
+			self.setupwidgets(self.title)
+			self.closed = 0
+		if not self.w.parent.debugger_quitting:
+			self.w.select()
+			raise W.AlertError, 'There is another debugger session busy.'
+		self.reset()
+		self.botframe = bottomframe
+		if running:
+			self.set_continue()
+			self.reason = 'RunningÉ'
+			self.setstate('running')
+		else:
+			self.set_step()
+			self.reason = 'stopped'
+			self.setstate('stopped')
+		sys.settrace(self.trace_dispatch)
+	
+	def stop(self):
+		self.set_quit()
+		if self.w.parent:
+			self.exit_mainloop()
+			self.resetwidgets()
+	
+	def set_continue_without_debugger(self):
+		sys.settrace(None)
+		self.set_quit()
+		self.clear_tracefuncs()
+		self.continuewithoutdebugger = 1
+		if self.w.parent:
+			self.exit_mainloop()
+			self.resetwidgets()
+	
+	def clear_tracefuncs(self):
+		try:
+			raise 'spam'
+		except:
+			pass
+		frame = sys.exc_traceback.tb_frame
+		while frame is not None:
+			del frame.f_trace
+			frame = frame.f_back
+	
+	def postmortem(self, exc_type, exc_value, traceback):
+		if self.closed:
+			self.setupwidgets(self.title)
+			self.closed = 0
+		if not self.w.parent.debugger_quitting:
+			raise W.AlertError, 'There is another debugger session busy.'
+		self.reset()
+		if traceback:
+			self.botframe = traceback.tb_frame
+			while traceback.tb_next <> None:
+				traceback = traceback.tb_next
+			frame = traceback.tb_frame
+		else:
+			self.botframe = None
+			frame = None
+		self.w.panes.bottom.buttons.killbutton.enable(1)
+		self.reason = '(dead) ' + self.formatexception(exc_type, exc_value)
+		self.w.select()
+		self.setup(frame, traceback)
+		self.setstate('dead')
+		self.showstack(self.curindex)
+		self.showframe(self.curindex)
+	
+	def setupwidgets(self, title):
+		self.w = w = W.Window(self.bounds, title, minsize = (500, 300))
+		
+		w.panes = W.HorizontalPanes((8, 4, -8, -8), self.horpanes)
+		
+		w.panes.browserpanes = browserpanes = W.VerticalPanes(None, self.verpanes)
+		
+		browserpanes.stacklist = W.Group(None)
+		browserpanes.stacklist.title = W.TextBox((4, 0, 0, 12), 'Stack')
+		browserpanes.stacklist.stack = W.List((0, 16, 0, 0), callback = self.do_stack, flags = Lists.lOnlyOne)
+		
+		browserpanes.locals = W.Group(None)
+		browserpanes.locals.title = W.TextBox((4, 0, 0, 12), 'Local variables')
+		browserpanes.locals.browser = PyBrowser.BrowserWidget((0, 16, 0, 0))
+		
+		browserpanes.globals = W.Group(None)
+		browserpanes.globals.title = W.TextBox((4, 0, 0, 12), 'Global variables')
+		browserpanes.globals.browser = PyBrowser.BrowserWidget((0, 16, 0, 0))
+		
+		w.panes.bottom = bottom = W.Group(None)
+		bottom.src = src = W.Group((0, 52, 0, 0))
+		source = SourceViewer((1, 1, -15, -15), readonly = 1, debugger = self)
+		src.optionsmenu = W.PopupMenu((-16, 0, 16, 16), [])
+		src.optionsmenu.bind('<click>', self.makeoptionsmenu)
+		
+		src._barx = W.Scrollbar((0, -16, -15, 16), source.hscroll, max = 32767)
+		src._bary = W.Scrollbar((-16, 15, 16, -15), source.vscroll, max = 32767)
+		src.source = source
+		src.frame = W.Frame((0, 0, -15, -15))
+		
+		bottom.tracingmonitor = TracingMonitor((0, 23, 6, 6))
+		bottom.state = W.TextBox((12, 20, 0, 16), self.reason)
+		
+		bottom.srctitle = W.TextBox((12, 36, 0, 14))
+		bottom.buttons = buttons = W.Group((12, 0, 0, 16))
+		
+		buttons.runbutton = W.Button((0, 0, 50, 16), "Run", self.do_run)
+		buttons.stopbutton = W.Button((58, 0, 50, 16), "Stop", self.do_stop)
+		buttons.killbutton = W.Button((116, 0, 50, 16), "Kill", self.do_kill)
+		buttons.line = W.VerticalLine((173, 0, 0, 0))
+		buttons.stepbutton = W.Button((181, 0, 50, 16), "Step", self.do_step)
+		buttons.stepinbutton = W.Button((239, 0, 50, 16), "Step in", self.do_stepin)
+		buttons.stepoutbutton = W.Button((297, 0, 50, 16), "Step out", self.do_stepout)
+		
+		w.bind('cmdr', buttons.runbutton.push)
+		w.bind('cmd.', buttons.stopbutton.push)
+		w.bind('cmdk', buttons.killbutton.push)
+		w.bind('cmds', buttons.stepbutton.push)
+		w.bind('cmdt', buttons.stepinbutton.push)
+		w.bind('cmdu', buttons.stepoutbutton.push)
+		
+		w.bind('<close>', self.close)
+		
+		w.open()
+		w.xxx___select(w.panes.bottom.src.source)
+	
+	def makeoptionsmenu(self):
+		options = [('Clear breakpoints', self.w.panes.bottom.src.source.clearbreakpoints), 
+				('Clear all breakpoints', self.clear_all_breaks),
+				('Edit breakpointsÉ', self.edit_breaks), '-',
+				(self.tracemagic and 
+					'Disable __magic__ tracing' or 'Enable __magic__ tracing', self.togglemagic)]
+		self.w.panes.bottom.src.optionsmenu.set(options)
+	
+	def edit_breaks(self):
+		if self.breaksviewer:
+			self.breaksviewer.select()
+		else:
+			self.breaksviewer = BreakpointsViewer(self)
+	
+	def togglemagic(self):
+		self.tracemagic = not self.tracemagic
+	
+	def setstate(self, state):
+		self.w.panes.bottom.tracingmonitor.reset()
+		self.w.panes.bottom.state.set(self.reason)
+		buttons = self.w.panes.bottom.buttons
+		if state == 'stopped':
+			buttons.runbutton.enable(1)
+			buttons.stopbutton.enable(0)
+			buttons.killbutton.enable(1)
+			buttons.stepbutton.enable(1)
+			buttons.stepinbutton.enable(1)
+			buttons.stepoutbutton.enable(1)
+		elif state == 'running':
+			buttons.runbutton.enable(0)
+			buttons.stopbutton.enable(1)
+			buttons.killbutton.enable(1)
+			buttons.stepbutton.enable(0)
+			buttons.stepinbutton.enable(0)
+			buttons.stepoutbutton.enable(0)
+		elif state == 'idle':
+			buttons.runbutton.enable(0)
+			buttons.stopbutton.enable(0)
+			buttons.killbutton.enable(0)
+			buttons.stepbutton.enable(0)
+			buttons.stepinbutton.enable(0)
+			buttons.stepoutbutton.enable(0)
+		elif state == 'dead':
+			buttons.runbutton.enable(0)
+			buttons.stopbutton.enable(0)
+			buttons.killbutton.enable(1)
+			buttons.stepbutton.enable(0)
+			buttons.stepinbutton.enable(0)
+			buttons.stepoutbutton.enable(0)
+		else:
+			print 'unknown state:', state
+	
+	def resetwidgets(self):
+		self.reason = ''
+		self.w.panes.bottom.srctitle.set('')
+		self.w.panes.bottom.src.source.set('')
+		self.w.panes.browserpanes.stacklist.stack.set([])
+		self.w.panes.browserpanes.locals.browser.set({})
+		self.w.panes.browserpanes.globals.browser.set({})
+		self.setstate('idle')
+	
+	# W callbacks
+	
+	def close(self):
+		self.set_quit()
+		self.exit_mainloop()
+		self.closed = 1
+		
+		self.unregister_editor(self.w.panes.bottom.src.source, 
+				self.w.panes.bottom.src.source.file)
+		self.horpanes = self.w.panes.getpanesizes()
+		self.verpanes = self.w.panes.browserpanes.getpanesizes()
+		self.bounds = self.w.getbounds()
+		prefs = W.getapplication().getprefs()
+		prefs.debugger.breaks = self.breaks
+		prefs.debugger.windowsettings = self.bounds, self.horpanes, self.verpanes
+		prefs.debugger.tracemagic = self.tracemagic
+		prefs.save()
+	
+	# stack list callback
+	
+	def do_stack(self, isdbl):
+		sel = self.w.panes.browserpanes.stacklist.stack.getselection()
+		if isdbl:
+			if sel:
+				frame, lineno = self.stack[sel[0] + 1]
+				filename = frame.f_code.co_filename
+				editor = self.w._parentwindow.parent.openscript(filename, lineno)
+				if self.breaks.has_key(filename):
+					editor.showbreakpoints(1)
+		else:
+			if sel and sel <> self.laststacksel:
+				self.showframe(sel[0] + 1)
+			self.laststacksel = sel
+	
+	def geteditor(self, filename):
+		if filename[:1] == '<' and filename[-1:] == '>':
+			editor = W.getapplication().getscript(filename[1:-1])
+		else:
+			editor = W.getapplication().getscript(filename)
+		return editor
+	
+	# button callbacks
+	
+	def do_run(self):
+		self.running()
+		self.set_continue()
+		self.exit_mainloop()
+	
+	def do_stop(self):
+		self.set_step()
+	
+	def do_kill(self):
+		self.set_quit()
+		self.exit_mainloop()
+		self.resetwidgets()
+	
+	def do_step(self):
+		self.running()
+		self.set_next(self.curframe)
+		self.exit_mainloop()
+	
+	def do_stepin(self):
+		self.running()
+		self.set_step()
+		self.exit_mainloop()
+	
+	def do_stepout(self):
+		self.running()
+		self.set_return(self.curframe)
+		self.exit_mainloop()
+	
+	def running(self):
+		W.SetCursor('watch')
+		self.reason = 'RunningÉ'
+		self.setstate('running')
+		#self.w.panes.bottom.src.source.set('')
+		#self.w.panes.browserpanes.stacklist.stack.set([])
+		#self.w.panes.browserpanes.locals.browser.set({})
+		#self.w.panes.browserpanes.globals.browser.set({})
+	
+	def exit_mainloop(self):
+		self.w.parent.debugger_quitting = 1
+	
+	#
+	
+	def showframe(self, stackindex):
+		(frame, lineno) = self.stack[stackindex]
+		W.SetCursor('watch')
+		filename = frame.f_code.co_filename
+		if filename <> self.file:
+			editor = self.geteditor(filename)
+			if editor:
+				self.w.panes.bottom.src.source.set(editor.get(), filename)
+			else:
+				try:
+					f = open(filename, 'rb')
+					data = f.read()
+					f.close()
+				except IOError:
+					if filename[-3:] == '.py':
+						import imp
+						modname = os.path.basename(filename)[:-3]
+						try:
+							f, filename, (suff, mode, dummy) = imp.find_module(modname)
+						except ImportError:
+							self.w.panes.bottom.src.source.set('canÕt find file')
+						else:
+							if f:
+								f.close()
+							if f and suff == '.py':
+								f = open(filename, 'rb')
+								data = f.read()
+								f.close()
+								self.w.panes.bottom.src.source.set(data, filename)
+							else:
+								self.w.panes.bottom.src.source.set('canÕt find file')
+					else:
+						self.w.panes.bottom.src.source.set('canÕt find file')
+				else:
+					self.w.panes.bottom.src.source.set(data, filename)
+			self.file = filename
+		self.w.panes.bottom.srctitle.set('Source: ' + filename + ((lineno > 0) and (' (line %d)' % lineno) or ' '))
+		self.goto_line(lineno)
+		self.lineno = lineno
+		self.showvars((frame, lineno))
+	
+	def showvars(self, (frame, lineno)):
+		if frame.f_locals is not frame.f_globals:
+			locals = frame.f_locals
+		else:
+			locals = {'Same as Globals':''}
+		filteredlocals = {}
+		for key, value in locals.items():
+			# empty key is magic for Python 1.4; '.' is magic for 1.5...
+			if not key or key[0] <> '.':
+				filteredlocals[key] = value
+		self.w.panes.browserpanes.locals.browser.set(filteredlocals)
+		self.w.panes.browserpanes.globals.browser.set(frame.f_globals)
+	
+	def showstack(self, stackindex):
+		stack = []
+		for frame, lineno in self.stack[1:]:
+			filename = frame.f_code.co_filename
+			try:
+				filename = _filenames[filename]
+			except KeyError:
+				if filename[:1] + filename[-1:] <> '<>':
+					filename = os.path.basename(filename)
+				_filenames[frame.f_code.co_filename] = filename
+			funcname = frame.f_code.co_name
+			if funcname == '?':
+				funcname = '<toplevel>'
+			stack.append(filename + ': ' + funcname)
+		if stack <> self.laststack:
+			self.w.panes.browserpanes.stacklist.stack.set(stack)
+			self.laststack = stack
+		sel = [stackindex - 1]
+		self.w.panes.browserpanes.stacklist.stack.setselection(sel)
+		self.laststacksel = sel
+	
+	def goto_line(self, lineno):
+		if lineno > 0:
+			self.w.panes.bottom.src.source.selectline(lineno - 1)
+		else:
+			self.w.panes.bottom.src.source.setselection(0, 0)
+	
+	# bdb entry points
+	
+#	def user_call(self, frame, argument_list):
+#		self.reason = 'Calling'
+#		self.interaction(frame, None)
+	
+	def user_line(self, frame):
+		# This function is called when we stop or break at this line
+		self.reason = 'Stopped'
+		self.interaction(frame, None)
+	
+	def user_return(self, frame, return_value):
+		# This function is called when a return trap is set here
+		fname = frame.f_code.co_name
+		if fname <> '?':
+			self.reason = 'Returning from %s()' % frame.f_code.co_name
+			frame.f_locals['__return__'] = return_value
+		elif frame.f_back is self.botframe:
+			self.reason = 'Done'
+		else:
+			self.reason = 'Returning'
+		self.interaction(frame, None, 1)
+	
+	def user_exception(self, frame, (exc_type, exc_value, exc_traceback)):
+		# This function is called when we stop or break at this line
+		self.reason = self.formatexception(exc_type, exc_value)
+		self.interaction(frame, exc_traceback)
+	
+	def formatexception(self, exc_type, exc_value):
+		if exc_type == SyntaxError:
+			try:
+				value, (filename, lineno, charno, line) = exc_value
+			except:
+				pass
+			else:
+				return str(exc_type) + ': ' + str(value)
+		if type(exc_type) == types.ClassType:
+			nice = exc_type.__name__
+		else:
+			nice = str(exc_type)
+		value = str(exc_value)
+		if exc_value and value:
+			nice = nice + ": " + value
+		return nice
+	
+	def forget(self):
+		self.stack = []
+		self.curindex = 0
+		self.curframe = None
+	
+	def setup(self, f, t, isreturning = 0):
+		self.forget()
+		self.stack, self.curindex = self.get_stack(f, t)
+		self.curframe = self.stack[self.curindex - isreturning][0]
+	
+	def interaction(self, frame, traceback, isreturning = 0):
+		saveport = Qd.GetPort()
+		self.w.select()
+		try:
+			self.setup(frame, traceback, isreturning)
+			self.setstate('stopped')
+			stackindex = self.curindex
+			if isreturning:
+				if frame.f_back is not self.botframe:
+					stackindex = stackindex - 1
+			self.showstack(stackindex)
+			self.showframe(stackindex)
+			self.w.parent.debugger_mainloop()
+			self.forget()
+		finally:
+			Qd.SetPort(saveport)
+	
+	# bdb customization
+	
+	def trace_dispatch(self, frame, event, arg, TickCount = Evt.TickCount):
+		if TickCount() - self.tracingmonitortime > 15:
+			self.tracingmonitortime = TickCount()
+			self.w.panes.bottom.tracingmonitor.toggle()
+		try:
+			try:
+				MacOS.EnableAppswitch(0)
+				if self.quitting:
+					# returning None is not enough, a former BdbQuit exception
+					# might have been eaten by the print statement
+					raise bdb.BdbQuit
+				if event == 'line':
+					return self.dispatch_line(frame)
+				if event == 'call':
+					return self.dispatch_call(frame, arg)
+				if event == 'return':
+					return self.dispatch_return(frame, arg)
+				if event == 'exception':
+					return self.dispatch_exception(frame, arg)
+				print 'bdb.Bdb.dispatch: unknown debugging event:', `event`
+				return self.trace_dispatch
+			finally:
+				MacOS.EnableAppswitch(-1)
+		except KeyboardInterrupt:
+			self.set_step()
+			return self.trace_dispatch
+		except bdb.BdbQuit:
+			if self.continuewithoutdebugger:
+				self.clear_tracefuncs()
+				return
+			else:
+				raise bdb.BdbQuit
+		except:
+			print 'XXX Exception during debugger interaction.', \
+					self.formatexception(sys.exc_type, sys.exc_value)
+			import traceback
+			traceback.print_exc()
+			return self.trace_dispatch
+	
+	def dispatch_call(self, frame, arg):
+		if not self.tracemagic and \
+				frame.f_code.co_name[:2] == '__' == frame.f_code.co_name[-2:] and \
+				frame.f_code.co_name <> '__init__':
+			return
+		if self.botframe is None:
+			# First call of dispatch since reset()
+			self.botframe = frame.f_back	# xxx !!! added f_back
+			return self.trace_dispatch
+		if not (self.stop_here(frame) or self.break_anywhere(frame)):
+			# No need to trace this function
+			return # None
+		self.user_call(frame, arg)
+		if self.quitting:
+			raise bdb.BdbQuit
+		return self.trace_dispatch
+	
+	def set_continue(self):
+		# Don't stop except at breakpoints or when finished
+		self.stopframe = self.botframe
+		self.returnframe = None
+		self.quitting = 0
+		# unlike in bdb/pdb, there's a chance that breakpoints change 
+		# *while* a program (this program ;-) is running. It's actually quite likely.
+		# So we don't delete frame.f_trace until the bottom frame if there are no breakpoints.
+	
+	def set_break(self, filename, lineno):
+		if not self.breaks.has_key(filename):
+			self.breaks[filename] = []
+		list = self.breaks[filename]
+		if lineno in list:
+			return 'There is already a breakpoint there!'
+		list.append(lineno)
+		list.sort()	# I want to keep them neatly sorted; easier for drawing
+		if hasattr(bdb, "Breakpoint"):
+			# 1.5.2b1 specific
+			bp = bdb.Breakpoint(filename, lineno, 0, None)
+		self.update_breaks(filename)
+	
+	def clear_break(self, filename, lineno):
+		bdb.Bdb.clear_break(self, filename, lineno)
+		self.update_breaks(filename)
+	
+	def clear_all_file_breaks(self, filename):
+		bdb.Bdb.clear_all_file_breaks(self, filename)
+		self.update_breaks(filename)
+	
+	def clear_all_breaks(self):
+		bdb.Bdb.clear_all_breaks(self)
+		for editors in self.editors.values():
+			for editor in editors:
+				editor.drawbreakpoints()
+	
+	# special
+	
+	def toggle_break(self, filename, lineno):
+		if self.get_break(filename, lineno):
+			self.clear_break(filename, lineno)
+		else:
+			self.set_break(filename, lineno)
+	
+	def clear_breaks_above(self, filename, above):
+		if not self.breaks.has_key(filename):
+			return 'There are no breakpoints in that file!'
+		for lineno in self.breaks[filename][:]:
+			if lineno > above:
+				self.breaks[filename].remove(lineno)
+		if not self.breaks[filename]:
+			del self.breaks[filename]
+	
+	# editor stuff
+	
+	def update_breaks(self, filename):
+		if self.breaksviewer:
+			self.breaksviewer.update()
+		if self.editors.has_key(filename):
+			for editor in self.editors[filename]:
+				if editor._debugger:	# XXX
+					editor.drawbreakpoints()
+				else:
+					print 'xxx dead editor!'
+	
+	def update_allbreaks(self):
+		if self.breaksviewer:
+			self.breaksviewer.update()
+		for filename in self.breaks.keys():
+			if self.editors.has_key(filename):
+				for editor in self.editors[filename]:
+					if editor._debugger:	# XXX
+						editor.drawbreakpoints()
+					else:
+						print 'xxx dead editor!'
+	
+	def register_editor(self, editor, filename):
+		if not filename:
+			return
+		if not self.editors.has_key(filename):
+			self.editors[filename] = [editor]
+		elif editor not in self.editors[filename]:
+			self.editors[filename].append(editor)
+	
+	def unregister_editor(self, editor, filename):
+		if not filename:
+			return
+		try:
+			self.editors[filename].remove(editor)
+			if not self.editors[filename]:
+				del self.editors[filename]
+				# if this was an untitled window, clear the breaks.
+				if filename[:1] == '<' and filename[-1:] == '>' and \
+						self.breaks.has_key(filename):
+					self.clear_all_file_breaks(filename)
+		except (KeyError, ValueError):
+			pass
+		
+
+class SourceViewer(W.PyEditor):
+	
+	def __init__(self, *args, **kwargs):
+		apply(W.PyEditor.__init__, (self,) + args, kwargs)
+		self.bind('<click>', self.clickintercept)
+	
+	def clickintercept(self, point, modifiers):
+		if self._parentwindow._currentwidget <> self and not self.pt_in_breaks(point):
+			self._parentwindow.xxx___select(self)
+			return 1
+	
+	def _getviewrect(self):
+		l, t, r, b = self._bounds
+		if self._debugger:
+			return (l + 12, t + 2, r - 1, b - 2)
+		else:
+			return (l + 5, t + 2, r - 1, b - 2)
+	
+	def select(self, onoff, isclick = 0):
+		if W.SelectableWidget.select(self, onoff):
+			return
+		self.SetPort()
+		#if onoff:
+		#	self.ted.WEActivate()
+		#else:
+		#	self.ted.WEDeactivate()
+		self.drawselframe(onoff)
+	
+	def drawselframe(self, onoff):
+		pass
+
+
+class BreakpointsViewer:
+	
+	def __init__(self, debugger):
+		self.debugger = debugger
+		import Lists
+		self.w = W.Window((300, 250), 'Breakpoints', minsize = (200, 200))
+		self.w.panes = W.HorizontalPanes((8, 8, -8, -32), (0.3, 0.7))
+		self.w.panes.files = W.List(None, callback = self.filehit)		#, flags = Lists.lOnlyOne)
+		self.w.panes.gr = W.Group(None)
+		self.w.panes.gr.breaks = W.List((0, 0, -130, 0), callback = self.linehit)	#, flags = Lists.lOnlyOne)
+		self.w.panes.gr.openbutton = W.Button((-80, 4, 0, 16), 'ViewÉ', self.openbuttonhit)
+		self.w.panes.gr.deletebutton = W.Button((-80, 28, 0, 16), 'Delete', self.deletebuttonhit)
+		
+		self.w.bind('<close>', self.close)
+		self.w.bind('backspace', self.w.panes.gr.deletebutton.push)
+		
+		self.setup()
+		self.w.open()
+		self.w.panes.gr.openbutton.enable(0)
+		self.w.panes.gr.deletebutton.enable(0)
+		self.curfile = None
+	
+	def deletebuttonhit(self):
+		if self.w._currentwidget == self.w.panes.files:
+			self.del_filename()
+		else:
+			self.del_number()
+		self.checkbuttons()
+	
+	def del_number(self):
+		if self.curfile is None:
+			return
+		sel = self.w.panes.gr.breaks.getselectedobjects()
+		for lineno in sel:
+			self.debugger.clear_break(self.curfile, lineno)
+	
+	def del_filename(self):
+		sel = self.w.panes.files.getselectedobjects()
+		for filename in sel:
+			self.debugger.clear_all_file_breaks(filename)
+		self.debugger.update_allbreaks()
+	
+	def setup(self):
+		files = self.debugger.breaks.keys()
+		files.sort()
+		self.w.panes.files.set(files)
+	
+	def close(self):
+		self.debugger.breaksviewer = None
+		self.debugger = None
+	
+	def update(self):
+		sel = self.w.panes.files.getselectedobjects()
+		self.setup()
+		self.w.panes.files.setselectedobjects(sel)
+		sel = self.w.panes.files.getselection()
+		if len(sel) == 0 and self.curfile:
+			self.w.panes.files.setselectedobjects([self.curfile])
+		self.filehit(0)
+	
+	def select(self):
+		self.w.select()
+	
+	def selectfile(self, file):
+		self.w.panes.files.setselectedobjects([file])
+		self.filehit(0)			
+	
+	def openbuttonhit(self):
+		self.filehit(1)
+	
+	def filehit(self, isdbl):
+		sel = self.w.panes.files.getselectedobjects()
+		if isdbl:
+			for filename in sel:
+				lineno = None
+				if filename == self.curfile:
+					linesel = self.w.panes.gr.breaks.getselectedobjects()
+					if linesel:
+						lineno = linesel[-1]
+					elif self.w.panes.gr.breaks:
+						lineno = self.w.panes.gr.breaks[0]
+				editor = self.w._parentwindow.parent.openscript(filename, lineno)
+				editor.showbreakpoints(1)
+			return
+		if len(sel) == 1:
+			file = sel[0]
+			filebreaks = self.debugger.breaks[file][:]
+			if self.curfile == file:
+				linesel = self.w.panes.gr.breaks.getselectedobjects()
+			self.w.panes.gr.breaks.set(filebreaks)
+			if self.curfile == file:
+				self.w.panes.gr.breaks.setselectedobjects(linesel)
+			self.curfile = file
+		else:
+			if len(sel) <> 0:
+				self.curfile = None
+			self.w.panes.gr.breaks.set([])
+		self.checkbuttons()
+	
+	def linehit(self, isdbl):
+		if isdbl:
+			files = self.w.panes.files.getselectedobjects()
+			if len(files) <> 1:
+				return
+			filename = files[0]
+			linenos = self.w.panes.gr.breaks.getselectedobjects()
+			if not linenos:
+				return
+			lineno = linenos[-1]
+			editor = self.w._parentwindow.parent.openscript(filename, lineno)
+			editor.showbreakpoints(1)
+		self.checkbuttons()
+	
+	def checkbuttons(self):
+		if self.w.panes.files.getselection():
+			self.w.panes.gr.openbutton.enable(1)
+			self.w._parentwindow.setdefaultbutton(self.w.panes.gr.openbutton)
+			if self.w._currentwidget == self.w.panes.files:
+				if self.w.panes.files.getselection():
+					self.w.panes.gr.deletebutton.enable(1)
+				else:
+					self.w.panes.gr.deletebutton.enable(0)
+			else:
+				if self.w.panes.gr.breaks.getselection():
+					self.w.panes.gr.deletebutton.enable(1)
+				else:
+					self.w.panes.gr.deletebutton.enable(0)
+		else:
+			self.w.panes.gr.openbutton.enable(0)
+			self.w.panes.gr.deletebutton.enable(0)
+
+
+class TracingMonitor(W.Widget):
+	
+	def __init__(self, *args, **kwargs):
+		apply(W.Widget.__init__, (self,) + args, kwargs)
+		self.state = 0
+	
+	def toggle(self):
+		if hasattr(self, "_parentwindow") and self._parentwindow is not None:
+			self.state = self.state % 2 + 1
+			port = Qd.GetPort()
+			self.SetPort()
+			self.draw()
+			Qd.SetPort(port)
+	
+	def reset(self):
+		if self._parentwindow:
+			self.state = 0
+			port = Qd.GetPort()
+			self.SetPort()
+			self.draw()
+			Qd.SetPort(port)
+	
+	def draw(self, visRgn = None):
+		if self.state == 2:
+			Qd.PaintOval(self._bounds)
+		else:
+			Qd.EraseOval(self._bounds)
+
+
+# convenience funcs
+
+def postmortem(exc_type, exc_value, tb):
+	d = getdebugger()
+	d.postmortem(exc_type, exc_value, tb)
+
+def start(bottomframe = None):
+	d = getdebugger()
+	d.start(bottomframe)
+
+def startfromhere():
+	d = getdebugger()
+	try:
+		raise 'spam'
+	except:
+		frame = sys.exc_traceback.tb_frame.f_back
+	d.start(frame)
+
+def startfrombottom():
+	d = getdebugger()
+	d.start(_getbottomframe(), 1)
+
+def stop():
+	d = getdebugger()
+	d.stop()
+
+def cont():
+	sys.settrace(None)
+	d = getdebugger()
+	d.set_continue_without_debugger()
+
+def _getbottomframe():
+	try:
+		raise 'spam'
+	except:
+		pass
+	frame = sys.exc_traceback.tb_frame
+	while 1:
+		if frame.f_code.co_name == 'mainloop' or frame.f_back is None:
+			break
+		frame = frame.f_back
+	return frame
+
+_debugger = None
+
+def getdebugger():
+	if not __debug__:
+		raise W.AlertError, "CanÕt debug in ÒOptimize bytecodeÓ mode.\r(see ÒDefault startup optionsÓ in EditPythonPreferences)"
+	global _debugger
+	if _debugger is None:
+		_debugger = Debugger()
+	return _debugger