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"""Primitive class browser.
XXX TO DO:
- generalize the scrolling listbox with some behavior into a base class
- add popup menu with more options (e.g. doc strings, base classes, imports)
- show function argument list (have to do pattern matching on source)
- should the classes and methods lists also be in the module's menu bar?
"""
import os
import string
import pyclbr
from Tkinter import *
import tkMessageBox
from ScrolledList import ScrolledList
class ClassBrowser:
def __init__(self, flist, name):
root = flist.root
try:
dict = pyclbr.readmodule(name)
except ImportError, msg:
tkMessageBox.showerror("Import error", str(msg), parent=root)
return
if not dict:
tkMessageBox.showerror("Nothing to browse",
"Module %s defines no classes" % name, parent=root)
return
self.flist = flist
self.dict = dict
self.root = root
self.top = top = Toplevel(root)
self.top.protocol("WM_DELETE_WINDOW", self.close)
top.wm_title("Class browser")
self.leftframe = leftframe = Frame(top)
self.leftframe.pack(side="left", fill="both", expand=1)
# Create help label
self.helplabel = Label(leftframe, text="Module %s" % name,
relief="groove", borderwidth=2)
self.helplabel.pack(fill="x")
# Create top frame, with scrollbar and listbox
self.classviewer = ClassViewer(
self.leftframe, self.flist, self)
# Load the classes
self.load_classes(dict, name)
def close(self):
self.classviewer = None
self.methodviewer = None
self.top.destroy()
def load_classes(self, dict, module):
self.classviewer.load_classes(dict, module)
if self.botframe:
self.botframe.destroy()
self.botframe = None
self.methodviewer = None
botframe = None
methodhelplabel = None
methodviewer = None
def show_methods(self, cl):
if not self.botframe:
self.botframe = Frame(self.top)
self.botframe.pack(side="right", expand=1, fill="both")
self.methodhelplabel = Label(self.botframe,
relief="groove", borderwidth=2)
self.methodhelplabel.pack(fill="x")
self.methodviewer = MethodViewer(self.botframe, self.flist)
self.methodhelplabel.config(text="Class %s" % cl.name)
self.methodviewer.load_methods(cl)
class ClassViewer(ScrolledList):
def __init__(self, master, flist, browser):
ScrolledList.__init__(self, master)
self.flist = flist
self.browser = browser
def load_classes(self, dict, module):
self.clear()
self.dict = dict
items = []
for key, value in dict.items():
if value.module == module:
items.append((value.lineno, key, value))
items.sort()
for lineno, key, value in items:
s = key
if value.super:
super = []
for sup in value.super:
name = sup.name
if sup.module != value.module:
name = "%s.%s" % (sup.module, name)
super.append(name)
s = s + "(%s)" % string.join(super, ", ")
self.append(s)
def getname(self, index):
name = self.listbox.get(index)
i = string.find(name, '(')
if i >= 0:
name = name[:i]
return name
def getclass(self, index):
return self.dict[self.getname(index)]
def on_select(self, index):
self.show_methods(index)
def on_double(self, index):
self.show_source(index)
def show_methods(self, index):
cl = self.getclass(index)
self.browser.show_methods(cl)
def show_source(self, index):
cl = self.getclass(index)
if os.path.isfile(cl.file):
edit = self.flist.open(cl.file)
edit.gotoline(cl.lineno)
class MethodViewer(ScrolledList):
def __init__(self, master, flist):
ScrolledList.__init__(self, master)
self.flist = flist
classinfo = None
def load_methods(self, cl):
self.classinfo = cl
self.clear()
items = []
for name, lineno in cl.methods.items():
items.append((lineno, name))
items.sort()
for item, name in items:
self.append(name)
def click_event(self, event):
pass
def on_double(self, index):
self.show_source(self.get(index))
def show_source(self, name):
if os.path.isfile(self.classinfo.file):
edit = self.flist.open(self.classinfo.file)
edit.gotoline(self.classinfo.methods[name])
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