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"""Class browser.
XXX TO DO:
- reparse when source changed (maybe just a button would be OK?)
(or recheck on window popup)
- 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?
- add base classes to class browser tree
"""
import os
import sys
import string
import pyclbr
# XXX Patch pyclbr with dummies if it's vintage Python 1.5.2:
if not hasattr(pyclbr, "readmodule_ex"):
pyclbr.readmodule_ex = pyclbr.readmodule
if not hasattr(pyclbr, "Function"):
class Function(pyclbr.Class):
pass
pyclbr.Function = Function
import PyShell
from WindowList import ListedToplevel
from TreeWidget import TreeNode, TreeItem, ScrolledCanvas
class ClassBrowser:
def __init__(self, flist, name, path):
self.name = name
self.file = os.path.join(path[0], self.name + ".py")
self.init(flist)
def close(self, event=None):
self.top.destroy()
def init(self, flist):
self.flist = flist
# reset pyclbr
pyclbr._modules.clear()
# create top
self.top = top = ListedToplevel(flist.root)
top.protocol("WM_DELETE_WINDOW", self.close)
top.bind("<Escape>", self.close)
self.settitle()
top.focus_set()
# create scrolled canvas
sc = ScrolledCanvas(top, bg="white", highlightthickness=0, takefocus=1)
sc.frame.pack(expand=1, fill="both")
item = self.rootnode()
node = TreeNode(sc.canvas, None, item)
node.update()
node.expand()
def settitle(self):
self.top.wm_title("Class Browser - " + self.name)
self.top.wm_iconname("Class Browser")
def rootnode(self):
return ModuleBrowserTreeItem(self.file)
class ModuleBrowserTreeItem(TreeItem):
def __init__(self, file):
self.file = file
def GetText(self):
return os.path.basename(self.file)
def GetIconName(self):
return "python"
def GetSubList(self):
sublist = []
for name in self.listclasses():
item = ClassBrowserTreeItem(name, self.classes, self.file)
sublist.append(item)
return sublist
def OnDoubleClick(self):
if os.path.normcase(self.file[-3:]) != ".py":
return
if not os.path.exists(self.file):
return
PyShell.flist.open(self.file)
def IsExpandable(self):
return os.path.normcase(self.file[-3:]) == ".py"
def listclasses(self):
dir, file = os.path.split(self.file)
name, ext = os.path.splitext(file)
if os.path.normcase(ext) != ".py":
return []
try:
dict = pyclbr.readmodule_ex(name, [dir] + sys.path)
except ImportError, msg:
return []
items = []
self.classes = {}
for key, cl in dict.items():
if cl.module == name:
s = key
if cl.super:
supers = []
for sup in cl.super:
if type(sup) is type(''):
sname = sup
else:
sname = sup.name
if sup.module != cl.module:
sname = "%s.%s" % (sup.module, sname)
supers.append(sname)
s = s + "(%s)" % string.join(supers, ", ")
items.append((cl.lineno, s))
self.classes[s] = cl
items.sort()
list = []
for item, s in items:
list.append(s)
return list
class ClassBrowserTreeItem(TreeItem):
def __init__(self, name, classes, file):
self.name = name
self.classes = classes
self.file = file
try:
self.cl = self.classes[self.name]
except (IndexError, KeyError):
self.cl = None
self.isfunction = isinstance(self.cl, pyclbr.Function)
def GetText(self):
if self.isfunction:
return "def " + self.name + "(...)"
else:
return "class " + self.name
def GetIconName(self):
if self.isfunction:
return "python"
else:
return "folder"
def IsExpandable(self):
if self.cl:
return not not self.cl.methods
def GetSubList(self):
if not self.cl:
return []
sublist = []
for name in self.listmethods():
item = MethodBrowserTreeItem(name, self.cl, self.file)
sublist.append(item)
return sublist
def OnDoubleClick(self):
if not os.path.exists(self.file):
return
edit = PyShell.flist.open(self.file)
if hasattr(self.cl, 'lineno'):
lineno = self.cl.lineno
edit.gotoline(lineno)
def listmethods(self):
if not self.cl:
return []
items = []
for name, lineno in self.cl.methods.items():
items.append((lineno, name))
items.sort()
list = []
for item, name in items:
list.append(name)
return list
class MethodBrowserTreeItem(TreeItem):
def __init__(self, name, cl, file):
self.name = name
self.cl = cl
self.file = file
def GetText(self):
return "def " + self.name + "(...)"
def GetIconName(self):
return "python" # XXX
def IsExpandable(self):
return 0
def OnDoubleClick(self):
if not os.path.exists(self.file):
return
edit = PyShell.flist.open(self.file)
edit.gotoline(self.cl.methods[self.name])
def main():
try:
file = __file__
except NameError:
file = sys.argv[0]
if sys.argv[1:]:
file = sys.argv[1]
else:
file = sys.argv[0]
dir, file = os.path.split(file)
name = os.path.splitext(file)[0]
ClassBrowser(PyShell.flist, name, [dir])
if sys.stdin is sys.__stdin__:
mainloop()
if __name__ == "__main__":
main()
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