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Python Source  |  2000-09-28  |  4.2 KB  |  152 lines
  1. # XXX TO DO:
  2. # - popup menu
  3. # - support partial or total redisplay
  4. # - more doc strings
  5. # - tooltips
  6.  
  7. # object browser
  8.  
  9. # XXX TO DO:
  10. # - for classes/modules, add "open source" to object browser
  11.  
  12. from TreeWidget import TreeItem, TreeNode, ScrolledCanvas
  13.  
  14. from repr import Repr
  15.  
  16. myrepr = Repr()
  17. myrepr.maxstring = 100
  18. myrepr.maxother = 100
  19.  
  20. class ObjectTreeItem(TreeItem):
  21.     def __init__(self, labeltext, object, setfunction=None):
  22.         self.labeltext = labeltext
  23.         self.object = object
  24.         self.setfunction = setfunction
  25.     def GetLabelText(self):
  26.         return self.labeltext
  27.     def GetText(self):
  28.         return myrepr.repr(self.object)
  29.     def GetIconName(self):
  30.         if not self.IsExpandable():
  31.             return "python"
  32.     def IsEditable(self):
  33.         return self.setfunction is not None
  34.     def SetText(self, text):
  35.         try:
  36.             value = eval(text)
  37.             self.setfunction(value)
  38.         except:
  39.             pass
  40.         else:
  41.             self.object = value
  42.     def IsExpandable(self):
  43.         return not not dir(self.object)
  44.     def GetSubList(self):
  45.         keys = dir(self.object)
  46.         sublist = []
  47.         for key in keys:
  48.             try:
  49.                 value = getattr(self.object, key)
  50.             except AttributeError:
  51.                 continue
  52.             item = make_objecttreeitem(
  53.                 str(key) + " =",
  54.                 value,
  55.                 lambda value, key=key, object=self.object:
  56.                     setattr(object, key, value))
  57.             sublist.append(item)
  58.         return sublist
  59.  
  60. class InstanceTreeItem(ObjectTreeItem):
  61.     def IsExpandable(self):
  62.         return 1
  63.     def GetSubList(self):
  64.         sublist = ObjectTreeItem.GetSubList(self)
  65.         sublist.insert(0,
  66.             make_objecttreeitem("__class__ =", self.object.__class__))
  67.         return sublist
  68.  
  69. class ClassTreeItem(ObjectTreeItem):
  70.     def IsExpandable(self):
  71.         return 1
  72.     def GetSubList(self):
  73.         sublist = ObjectTreeItem.GetSubList(self)
  74.         if len(self.object.__bases__) == 1:
  75.             item = make_objecttreeitem("__bases__[0] =",
  76.                 self.object.__bases__[0])
  77.         else:
  78.             item = make_objecttreeitem("__bases__ =", self.object.__bases__)
  79.         sublist.insert(0, item)
  80.         return sublist
  81.  
  82. class AtomicObjectTreeItem(ObjectTreeItem):
  83.     def IsExpandable(self):
  84.         return 0
  85.  
  86. class SequenceTreeItem(ObjectTreeItem):
  87.     def IsExpandable(self):
  88.         return len(self.object) > 0
  89.     def keys(self):
  90.         return range(len(self.object))
  91.     def GetSubList(self):
  92.         sublist = []
  93.         for key in self.keys():
  94.             try:
  95.                 value = self.object[key]
  96.             except KeyError:
  97.                 continue
  98.             def setfunction(value, key=key, object=self.object):
  99.                 object[key] = value
  100.             item = make_objecttreeitem(`key` + ":", value, setfunction)
  101.             sublist.append(item)
  102.         return sublist
  103.  
  104. class DictTreeItem(SequenceTreeItem):
  105.     def keys(self):
  106.         keys = self.object.keys()
  107.         try:
  108.             keys.sort()
  109.         except:
  110.             pass
  111.         return keys
  112.  
  113. from types import *
  114.  
  115. dispatch = {
  116.     IntType: AtomicObjectTreeItem,
  117.     LongType: AtomicObjectTreeItem,
  118.     FloatType: AtomicObjectTreeItem,
  119.     StringType: AtomicObjectTreeItem,
  120.     TupleType: SequenceTreeItem,
  121.     ListType: SequenceTreeItem,
  122.     DictType: DictTreeItem,
  123.     InstanceType: InstanceTreeItem,
  124.     ClassType: ClassTreeItem,
  125. }
  126.  
  127. def make_objecttreeitem(labeltext, object, setfunction=None):
  128.     t = type(object)
  129.     if dispatch.has_key(t):
  130.         c = dispatch[t]
  131.     else:
  132.         c = ObjectTreeItem
  133.     return c(labeltext, object, setfunction)
  134.  
  135. # Test script
  136.  
  137. def test():
  138.     import sys
  139.     from Tkinter import Toplevel
  140.     import PyShell
  141.     root = Toplevel(PyShell.root)
  142.     root.configure(bd=0, bg="yellow")
  143.     root.focus_set()
  144.     sc = ScrolledCanvas(root, bg="white", highlightthickness=0, takefocus=1)
  145.     sc.frame.pack(expand=1, fill="both")
  146.     item = make_objecttreeitem("sys", sys)
  147.     node = TreeNode(sc.canvas, None, item)
  148.     node.expand()
  149.  
  150. if __name__ == '__main__':
  151.     test()
  152.