utils/wxPython/demo/wxTreeCtrl.py

   1
   2 from wxPython.wx import *
   3
   4 import string
   5
   6 #---------------------------------------------------------------------------
   7
   8 class TestTreeCtrlPanel(wxPanel):
   9     def __init__(self, parent, log):
  10         wxPanel.__init__(self, parent, -1)
  11
  12         self.log = log
  13         tID = NewId()
  14
  15         self.tree = wxTreeCtrl(self, tID, wxDefaultPosition, wxDefaultSize,
  16                                wxTR_HAS_BUTTONS | wxTR_EDIT_LABELS)# | wxTR_MULTIPLE)
  17
  18         self.root = self.tree.AddRoot("The Root Item")
  19         for x in range(15):
  20             child = self.tree.AppendItem(self.root, "Item %d" % x)
  21             #self.tree.SelectItem(child)
  22             for y in range(5):
  23                 last = self.tree.AppendItem(child, "item %d-%s" % (x, chr(ord("a")+y)))
  24                 for z in range(5):
  25                     self.tree.AppendItem(last,  "item %d-%s-%d" % (x, chr(ord("a")+y), z))
  26
  27         self.tree.Expand(self.root)
  28         EVT_TREE_ITEM_EXPANDED  (self, tID, self.OnItemExpanded)
  29         EVT_TREE_ITEM_COLLAPSED (self, tID, self.OnItemCollapsed)
  30         EVT_TREE_SEL_CHANGED    (self, tID, self.OnSelChanged)
  31         EVT_TREE_BEGIN_LABEL_EDIT(self, tID, self.OnBeginEdit)
  32         EVT_TREE_END_LABEL_EDIT (self, tID, self.OnEndEdit)
  33
  34         EVT_LEFT_DCLICK(self.tree, self.OnLeftDClick)
  35         EVT_RIGHT_DOWN(self.tree, self.OnRightClick)
  36         EVT_RIGHT_UP(self.tree, self.OnRightUp)
  37
  38     def OnRightClick(self, event):
  39         pt = event.GetPosition();
  40         item = self.tree.HitTest(pt)
  41         self.log.WriteText("OnRightClick: %s\n" % self.tree.GetItemText(item))
  42         self.tree.SelectItem(item)
  43
  44     def OnRightUp(self, event):
  45         pt = event.GetPosition();
  46         item = self.tree.HitTest(pt)
  47         self.log.WriteText("OnRightUp: %s (manually starting label edit)\n"
  48                            % self.tree.GetItemText(item))
  49         self.tree.EditLabel(item)
  50
  51
  52
  53     def OnBeginEdit(self, event):
  54         self.log.WriteText("OnBeginEdit\n")
  55         # show how to prevent edit...
  56         if self.tree.GetItemText(event.GetItem()) == "The Root Item":
  57             wxBell()
  58             self.log.WriteText("You can't edit this one...\n")
  59             event.Veto()
  60
  61     def OnEndEdit(self, event):
  62         self.log.WriteText("OnEndEdit\n")
  63         # show how to reject edit, we'll not allow any digits
  64         for x in event.GetLabel():
  65             if x in string.digits:
  66                 self.log.WriteText("You can't enter digits...\n")
  67                 event.Veto()
  68                 return
  69
  70
  71
  72     def OnLeftDClick(self, event):
  73         pt = event.GetPosition();
  74         item = self.tree.HitTest(pt)
  75         self.log.WriteText("OnLeftDClick: %s\n" % self.tree.GetItemText(item))
  76
  77
  78     def OnSize(self, event):
  79         w,h = self.GetClientSizeTuple()
  80         self.tree.SetDimensions(0, 0, w, h)
  81
  82
  83     def OnItemExpanded(self, event):
  84         item = event.GetItem()
  85         self.log.WriteText("OnItemExpanded: %s\n" % self.tree.GetItemText(item))
  86
  87     def OnItemCollapsed(self, event):
  88         item = event.GetItem()
  89         self.log.WriteText("OnItemCollapsed: %s\n" % self.tree.GetItemText(item))
  90
  91     def OnSelChanged(self, event):
  92         self.item = event.GetItem()
  93         self.log.WriteText("OnSelChanged: %s\n" % self.tree.GetItemText(self.item))
  94
  95 #---------------------------------------------------------------------------
  96
  97 def runTest(frame, nb, log):
  98     win = TestTreeCtrlPanel(nb, log)
  99     return win
 100
 101 #---------------------------------------------------------------------------
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 120 overview = """\
 121 A tree control presents information as a hierarchy, with items that may be expanded to show further items. Items in a tree control are referenced by wxTreeItemId handles.
 122
 123 wxTreeCtrl()
 124 -------------------------
 125
 126 Default constructor.
 127
 128 wxTreeCtrl(wxWindow* parent, wxWindowID id, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = wxTR_HAS_BUTTONS, const wxValidator& validator = wxDefaultValidator, const wxString& name = "listCtrl")
 129
 130 Constructor, creating and showing a tree control.
 131
 132 Parameters
 133 -------------------
 134
 135 parent = Parent window. Must not be NULL.
 136
 137 id = Window identifier. A value of -1 indicates a default value.
 138
 139 pos = Window position.
 140
 141 size = Window size. If the default size (-1, -1) is specified then the window is sized appropriately.
 142
 143 style = Window style. See wxTreeCtrl.
 144
 145 validator = Window validator.
 146
 147 name = Window name.
 148 """