wxPython/demo/wxTreeCtrl.py

   1
   2 from wxPython.wx import *
   3
   4 import string
   5
   6 #---------------------------------------------------------------------------
   7
   8 class MyTreeCtrl(wxTreeCtrl):
   9     def __init__(self, parent, id, pos, size, style):
  10         wxTreeCtrl.__init__(self, parent, id, pos, size, style)
  11
  12
  13     def OnCompareItems(self, item1, item2):
  14         t1 = self.GetItemText(item1)
  15         t2 = self.GetItemText(item2)
  16         if t1 < t2: return -1
  17         if t1 == t2: return 0
  18         return 1
  19
  20 #---------------------------------------------------------------------------
  21
  22 class TestTreeCtrlPanel(wxPanel):
  23     def __init__(self, parent, log):
  24         # Use the WANTS_CHARS style so the panel doesn't eat the Return key.
  25         wxPanel.__init__(self, parent, -1, style=wxWANTS_CHARS)
  26         EVT_SIZE(self, self.OnSize)
  27
  28         self.log = log
  29         tID = NewId()
  30
  31         self.tree = MyTreeCtrl(self, tID, wxDefaultPosition, wxDefaultSize,
  32                                wxTR_HAS_BUTTONS | wxTR_EDIT_LABELS)# | wxTR_MULTIPLE)
  33
  34         #import images
  35         #il = wxImageList(16, 16)
  36         #idx1 = il.Add(images.getSmilesBitmap())
  37         #idx2 = il.Add(images.getOpenBitmap())
  38         #idx3 = il.Add(images.getNewBitmap())
  39         #idx4 = il.Add(images.getCopyBitmap())
  40         #idx5 = il.Add(images.getPasteBitmap())
  41
  42         #self.tree.SetImageList(il)
  43         #self.il = il
  44
  45         # NOTE:  For some reason tree items have to have a data object in
  46         #        order to be sorted.  Since our compare just uses the labels
  47         #        we don't need any real data, so we'll just use None.
  48
  49         self.root = self.tree.AddRoot("The Root Item")
  50         self.tree.SetPyData(self.root, None)
  51         #self.tree.SetItemImage(self.root, idx1)
  52
  53         for x in range(15):
  54             child = self.tree.AppendItem(self.root, "Item %d" % x)
  55             self.tree.SetPyData(child, None)
  56             #self.tree.SetItemImage(child, idx2)
  57             #self.tree.SetItemSelectedImage(child, idx3)
  58             for y in range(5):
  59                 last = self.tree.AppendItem(child, "item %d-%s" % (x, chr(ord("a")+y)))
  60                 self.tree.SetPyData(last, None)
  61                 #self.tree.SetItemImage(last, idx4)
  62                 #self.tree.SetItemSelectedImage(last, idx5)
  63                 for z in range(5):
  64                     item = self.tree.AppendItem(last,  "item %d-%s-%d" % (x, chr(ord("a")+y), z))
  65                     self.tree.SetPyData(item, None)
  66
  67         self.tree.Expand(self.root)
  68         EVT_TREE_ITEM_EXPANDED  (self, tID, self.OnItemExpanded)
  69         EVT_TREE_ITEM_COLLAPSED (self, tID, self.OnItemCollapsed)
  70         EVT_TREE_SEL_CHANGED    (self, tID, self.OnSelChanged)
  71         EVT_TREE_BEGIN_LABEL_EDIT(self, tID, self.OnBeginEdit)
  72         EVT_TREE_END_LABEL_EDIT (self, tID, self.OnEndEdit)
  73         EVT_TREE_ITEM_ACTIVATED (self, tID, self.OnActivate)
  74
  75         EVT_LEFT_DCLICK(self.tree, self.OnLeftDClick)
  76         EVT_RIGHT_DOWN(self.tree, self.OnRightClick)
  77         EVT_RIGHT_UP(self.tree, self.OnRightUp)
  78
  79
  80     def OnRightClick(self, event):
  81         pt = event.GetPosition();
  82         item, flags = self.tree.HitTest(pt)
  83         self.log.WriteText("OnRightClick: %s, %s\n" % (self.tree.GetItemText(item),
  84                                                        type(item)))
  85         self.tree.SelectItem(item)
  86
  87
  88
  89     def OnRightUp(self, event):
  90         pt = event.GetPosition();
  91         item, flags = self.tree.HitTest(pt)
  92         self.log.WriteText("OnRightUp: %s (manually starting label edit)\n"
  93                            % self.tree.GetItemText(item))
  94         self.tree.EditLabel(item)
  95
  96
  97
  98     def OnBeginEdit(self, event):
  99         self.log.WriteText("OnBeginEdit\n")
 100         # show how to prevent edit...
 101         if self.tree.GetItemText(event.GetItem()) == "The Root Item":
 102             wxBell()
 103             self.log.WriteText("You can't edit this one...\n")
 104             event.Veto()
 105
 106     def OnEndEdit(self, event):
 107         self.log.WriteText("OnEndEdit\n")
 108         # show how to reject edit, we'll not allow any digits
 109         for x in event.GetLabel():
 110             if x in string.digits:
 111                 self.log.WriteText("You can't enter digits...\n")
 112                 event.Veto()
 113                 return
 114
 115
 116     def OnLeftDClick(self, event):
 117         pt = event.GetPosition();
 118         item, flags = self.tree.HitTest(pt)
 119         self.log.WriteText("OnLeftDClick: %s\n" % self.tree.GetItemText(item))
 120         parent = self.tree.GetItemParent(item)
 121         self.tree.SortChildren(parent)
 122         event.Skip()
 123
 124
 125     def OnSize(self, event):
 126         w,h = self.GetClientSizeTuple()
 127         self.tree.SetDimensions(0, 0, w, h)
 128
 129
 130     def OnItemExpanded(self, event):
 131         item = event.GetItem()
 132         self.log.WriteText("OnItemExpanded: %s\n" % self.tree.GetItemText(item))
 133
 134     def OnItemCollapsed(self, event):
 135         item = event.GetItem()
 136         self.log.WriteText("OnItemCollapsed: %s\n" % self.tree.GetItemText(item))
 137
 138     def OnSelChanged(self, event):
 139         self.item = event.GetItem()
 140         self.log.WriteText("OnSelChanged: %s\n" % self.tree.GetItemText(self.item))
 141         if wxPlatform == '__WXMSW__':
 142             self.log.WriteText("BoundingRect: %s\n" %
 143                                self.tree.GetBoundingRect(self.item, true))
 144         #items = self.tree.GetSelections()
 145         #print map(self.tree.GetItemText, items)
 146         event.Skip()
 147
 148
 149     def OnActivate(self, evt):
 150         self.log.WriteText("OnActivate: %s\n" % self.tree.GetItemText(self.item))
 151
 152
 153 #---------------------------------------------------------------------------
 154
 155 def runTest(frame, nb, log):
 156     win = TestTreeCtrlPanel(nb, log)
 157     return win
 158
 159 #---------------------------------------------------------------------------
 160
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 172
 173 overview = """\
 174 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.
 175
 176 wxTreeCtrl()
 177 -------------------------
 178
 179 Default constructor.
 180
 181 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")
 182
 183 Constructor, creating and showing a tree control.
 184
 185 Parameters
 186 -------------------
 187
 188 parent = Parent window. Must not be NULL.
 189
 190 id = Window identifier. A value of -1 indicates a default value.
 191
 192 pos = Window position.
 193
 194 size = Window size. If the default size (-1, -1) is specified then the window is sized appropriately.
 195
 196 style = Window style. See wxTreeCtrl.
 197
 198 validator = Window validator.
 199
 200 name = Window name.
 201 """