| import string |
| import sys |
| import os |
| from Tkinter import * |
| import linecache |
| from repr import Repr |
| from WindowList import ListedToplevel |
| |
| from ScrolledList import ScrolledList |
| |
| |
| class StackBrowser: |
| |
| def __init__(self, root, flist, stack=None): |
| self.top = top = ListedToplevel(root) |
| top.protocol("WM_DELETE_WINDOW", self.close) |
| top.bind("<Key-Escape>", self.close) |
| top.wm_title("Stack viewer") |
| top.wm_iconname("Stack") |
| # Create help label |
| self.helplabel = Label(top, |
| text="Click once to view variables; twice for source", |
| borderwidth=2, relief="groove") |
| self.helplabel.pack(fill="x") |
| # |
| self.sv = StackViewer(top, flist, self) |
| if stack is None: |
| stack = get_stack() |
| self.sv.load_stack(stack) |
| |
| def close(self, event=None): |
| self.top.destroy() |
| |
| localsframe = None |
| localsviewer = None |
| localsdict = None |
| globalsframe = None |
| globalsviewer = None |
| globalsdict = None |
| curframe = None |
| |
| def show_frame(self, (frame, lineno)): |
| if frame is self.curframe: |
| return |
| self.curframe = None |
| if frame.f_globals is not self.globalsdict: |
| self.show_globals(frame) |
| self.show_locals(frame) |
| self.curframe = frame |
| |
| def show_globals(self, frame): |
| title = "Global Variables" |
| if frame.f_globals.has_key("__name__"): |
| try: |
| name = str(frame.f_globals["__name__"]) + "" |
| except: |
| name = "" |
| if name: |
| title = title + " in module " + name |
| self.globalsdict = None |
| if self.globalsviewer: |
| self.globalsviewer.close() |
| self.globalsviewer = None |
| if not self.globalsframe: |
| self.globalsframe = Frame(self.top) |
| self.globalsdict = frame.f_globals |
| self.globalsviewer = NamespaceViewer( |
| self.globalsframe, |
| title, |
| self.globalsdict) |
| self.globalsframe.pack(fill="both", side="bottom") |
| |
| def show_locals(self, frame): |
| self.localsdict = None |
| if self.localsviewer: |
| self.localsviewer.close() |
| self.localsviewer = None |
| if frame.f_locals is not frame.f_globals: |
| title = "Local Variables" |
| code = frame.f_code |
| funcname = code.co_name |
| if funcname not in ("?", "", None): |
| title = title + " in " + funcname |
| if not self.localsframe: |
| self.localsframe = Frame(self.top) |
| self.localsdict = frame.f_locals |
| self.localsviewer = NamespaceViewer( |
| self.localsframe, |
| title, |
| self.localsdict) |
| self.localsframe.pack(fill="both", side="top") |
| else: |
| if self.localsframe: |
| self.localsframe.forget() |
| |
| |
| class StackViewer(ScrolledList): |
| |
| def __init__(self, master, flist, browser): |
| ScrolledList.__init__(self, master) |
| self.flist = flist |
| self.browser = browser |
| self.stack = [] |
| |
| def load_stack(self, stack, index=None): |
| self.stack = stack |
| self.clear() |
| ## if len(stack) > 10: |
| ## l["height"] = 10 |
| ## self.topframe.pack(expand=1) |
| ## else: |
| ## l["height"] = len(stack) |
| ## self.topframe.pack(expand=0) |
| for i in range(len(stack)): |
| frame, lineno = stack[i] |
| try: |
| modname = frame.f_globals["__name__"] |
| except: |
| modname = "?" |
| code = frame.f_code |
| filename = code.co_filename |
| funcname = code.co_name |
| sourceline = linecache.getline(filename, lineno) |
| sourceline = string.strip(sourceline) |
| if funcname in ("?", "", None): |
| item = "%s, line %d: %s" % (modname, lineno, sourceline) |
| else: |
| item = "%s.%s(), line %d: %s" % (modname, funcname, |
| lineno, sourceline) |
| if i == index: |
| item = "> " + item |
| self.append(item) |
| if index is not None: |
| self.select(index) |
| |
| def popup_event(self, event): |
| if self.stack: |
| return ScrolledList.popup_event(self, event) |
| |
| def fill_menu(self): |
| menu = self.menu |
| menu.add_command(label="Go to source line", |
| command=self.goto_source_line) |
| menu.add_command(label="Show stack frame", |
| command=self.show_stack_frame) |
| |
| def on_select(self, index): |
| if 0 <= index < len(self.stack): |
| self.browser.show_frame(self.stack[index]) |
| |
| def on_double(self, index): |
| self.show_source(index) |
| |
| def goto_source_line(self): |
| index = self.listbox.index("active") |
| self.show_source(index) |
| |
| def show_stack_frame(self): |
| index = self.listbox.index("active") |
| if 0 <= index < len(self.stack): |
| self.browser.show_frame(self.stack[index]) |
| |
| def show_source(self, index): |
| if not (0 <= index < len(self.stack)): |
| return |
| frame, lineno = self.stack[index] |
| code = frame.f_code |
| filename = code.co_filename |
| if os.path.isfile(filename): |
| edit = self.flist.open(filename) |
| if edit: |
| edit.gotoline(lineno) |
| |
| |
| def get_stack(t=None, f=None): |
| if t is None: |
| t = sys.last_traceback |
| stack = [] |
| if t and t.tb_frame is f: |
| t = t.tb_next |
| while f is not None: |
| stack.append((f, f.f_lineno)) |
| if f is self.botframe: |
| break |
| f = f.f_back |
| stack.reverse() |
| while t is not None: |
| stack.append((t.tb_frame, t.tb_lineno)) |
| t = t.tb_next |
| return stack |
| |
| |
| def getexception(type=None, value=None): |
| if type is None: |
| type = sys.last_type |
| value = sys.last_value |
| if hasattr(type, "__name__"): |
| type = type.__name__ |
| s = str(type) |
| if value is not None: |
| s = s + ": " + str(value) |
| return s |
| |
| |
| class NamespaceViewer: |
| |
| def __init__(self, master, title, dict=None): |
| width = 0 |
| height = 40 |
| if dict: |
| height = 20*len(dict) # XXX 20 == observed height of Entry widget |
| self.master = master |
| self.title = title |
| self.repr = Repr() |
| self.repr.maxstring = 60 |
| self.repr.maxother = 60 |
| self.frame = frame = Frame(master) |
| self.frame.pack(expand=1, fill="both") |
| self.label = Label(frame, text=title, borderwidth=2, relief="groove") |
| self.label.pack(fill="x") |
| self.vbar = vbar = Scrollbar(frame, name="vbar") |
| vbar.pack(side="right", fill="y") |
| self.canvas = canvas = Canvas(frame, |
| height=min(300, max(40, height)), |
| scrollregion=(0, 0, width, height)) |
| canvas.pack(side="left", fill="both", expand=1) |
| vbar["command"] = canvas.yview |
| canvas["yscrollcommand"] = vbar.set |
| self.subframe = subframe = Frame(canvas) |
| self.sfid = canvas.create_window(0, 0, window=subframe, anchor="nw") |
| self.load_dict(dict) |
| |
| dict = -1 |
| |
| def load_dict(self, dict, force=0): |
| if dict is self.dict and not force: |
| return |
| subframe = self.subframe |
| frame = self.frame |
| for c in subframe.children.values(): |
| c.destroy() |
| self.dict = None |
| if not dict: |
| l = Label(subframe, text="None") |
| l.grid(row=0, column=0) |
| else: |
| names = dict.keys() |
| names.sort() |
| row = 0 |
| for name in names: |
| value = dict[name] |
| svalue = self.repr.repr(value) # repr(value) |
| l = Label(subframe, text=name) |
| l.grid(row=row, column=0, sticky="nw") |
| ## l = Label(subframe, text=svalue, justify="l", wraplength=300) |
| l = Entry(subframe, width=0, borderwidth=0) |
| l.insert(0, svalue) |
| ## l["state"] = "disabled" |
| l.grid(row=row, column=1, sticky="nw") |
| row = row+1 |
| self.dict = dict |
| # XXX Could we use a <Configure> callback for the following? |
| subframe.update_idletasks() # Alas! |
| width = subframe.winfo_reqwidth() |
| height = subframe.winfo_reqheight() |
| canvas = self.canvas |
| self.canvas["scrollregion"] = (0, 0, width, height) |
| if height > 300: |
| canvas["height"] = 300 |
| frame.pack(expand=1) |
| else: |
| canvas["height"] = height |
| frame.pack(expand=0) |
| |
| def close(self): |
| self.frame.destroy() |