# wdbframewin.py -- frame window for wdb.py
# XXX To do:
# - display function name in window title
# - execute arbitrary statements instead of just evaluating expressions
# - allow setting variables by editing their values
import stdwin
from stdwinevents import *
import basewin
import sys
WIDTH = 40
MINHEIGHT = 8
MAXHEIGHT = 16
class FrameWindow(basewin.BaseWindow):
def __init__(self, debugger, frame, dict, name):
self.debugger = debugger
self.frame = frame # Not used except for identity tests
self.dict = dict
self.name = name
nl = max(MINHEIGHT, len(self.dict) + 5)
nl = min(nl, MAXHEIGHT)
width = WIDTH*stdwin.textwidth('0')
height = nl*stdwin.lineheight()
stdwin.setdefwinsize(width, height)
basewin.BaseWindow.__init__(
self, '--Frame ' + name + '--')
# XXX Should use current function name
self.initeditor()
self.displaylist = ['>>>', '', '-'*WIDTH]
self.refreshframe()
def initeditor(self):
r = (stdwin.textwidth('>>> '), 0), (30000, stdwin.lineheight())
self.editor = self.win.textcreate(r)
def closeeditor(self):
self.editor.close()
def dispatch(self, event):
type, win, detail = event
if type == WE_NULL: return # Dummy tested by mainloop
if type in (WE_DRAW, WE_COMMAND) \
or not self.editor.event(event):
basewin.BaseWindow.dispatch(self, event)
def close(self):
del self.debugger.framewindows[self.name]
del self.debugger, self.dict
self.closeeditor()
basewin.BaseWindow.close(self)
def command(self, detail):
if detail == WC_RETURN:
self.re_eval()
else:
dummy = self.editor.event(WE_COMMAND, \
self.win, detail)
def mouse_down(self, detail):
(h, v), clicks, button, mask = detail
if clicks != 2:
return
i = v / stdwin.lineheight()
if 5 <= i < len(self.displaylist):
import string
name = string.splitfields(self.displaylist[i],' = ')[0]
if not self.dict.has_key(name):
stdwin.fleep()
return
value = self.dict[name]
if not hasattr(value, '__dict__'):
stdwin.fleep()
return
name = 'instance ' + `value`
if self.debugger.framewindows.has_key(name):
self.debugger.framewindows[name].popup()
else:
self.debugger.framewindows[name] = \
FrameWindow(self.debugger,
self.frame, value.__dict__,
name)
return
stdwin.fleep()
def re_eval(self):
import string, repr
expr = string.strip(self.editor.gettext())
if expr == '':
output = ''
else:
globals = self.frame.f_globals
globals['__privileged__'] = 1
locals = self.dict
try:
value = eval(expr, globals, locals)
output = repr.repr(value)
except:
if type(sys.exc_type) == type(''):
exc_type_name = sys.exc_type
else: exc_type_name = sys.exc_type.__name__
output = exc_type_name + ': ' + `sys.exc_value`
self.displaylist[1] = output
lh = stdwin.lineheight()
r = (-10, 0), (30000, 2*lh)
self.win.change(r)
self.editor.setfocus(0, len(expr))
def draw(self, detail):
(left, top), (right, bottom) = detail
dummy = self.editor.draw(detail)
d = self.win.begindrawing()
try:
lh = d.lineheight()
h, v = 0, 0
for line in self.displaylist:
if v+lh > top and v < bottom:
d.text((h, v), line)
v = v + lh
finally:
d.close()
def refreshframe(self):
import repr
del self.displaylist[3:]
self.re_eval()
names = self.dict.keys()
for key, label in ('__args__', 'Args: '), \
('__return__', 'Return: '):
if self.dict.has_key(key):
names.remove(key)
value = self.dict[key]
label = label + repr.repr(value)
self.displaylist.append(label)
names.sort()
for name in names:
value = self.dict[name]
line = name + ' = ' + repr.repr(value)
self.displaylist.append(line)
self.win.setdocsize(0, \
stdwin.lineheight() * len(self.displaylist))
self.refreshall() # XXX Be more subtle later
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