diff options
Diffstat (limited to 'Lib/idlelib/OldStackViewer.py')
| -rw-r--r-- | Lib/idlelib/OldStackViewer.py | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/Lib/idlelib/OldStackViewer.py b/Lib/idlelib/OldStackViewer.py new file mode 100644 index 0000000..2fa4127 --- /dev/null +++ b/Lib/idlelib/OldStackViewer.py @@ -0,0 +1,276 @@ +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, width=80) + 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() |