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, log):
  10         wxTreeCtrl.__init__(self, parent, id, pos, size, style)
  11         self.log = log
  12
  13     def OnCompareItems(self, item1, item2):
  14         t1 = self.GetItemText(item1)
  15         t2 = self.GetItemText(item2)
  16         self.log.WriteText('compare: ' + t1 + '<>' + t2 + '\n')
  17         if t1 < t2: return -1
  18         if t1 == t2: return 0
  19         return 1
  20
  21 #---------------------------------------------------------------------------
  22
  23 class TestTreeCtrlPanel(wxPanel):
  24     def __init__(self, parent, log):
  25         # Use the WANTS_CHARS style so the panel doesn't eat the Return key.
  26         wxPanel.__init__(self, parent, -1, style=wxWANTS_CHARS)
  27         EVT_SIZE(self, self.OnSize)
  28
  29         self.log = log
  30         tID = NewId()
  31
  32         self.tree = MyTreeCtrl(self, tID, wxDefaultPosition, wxDefaultSize,
  33                                wxTR_HAS_BUTTONS | wxTR_EDIT_LABELS# | wxTR_MULTIPLE
  34                                , self.log)
  35
  36         #import images
  37         #il = wxImageList(16, 16)
  38         #idx1 = il.Add(images.getSmilesBitmap())
  39         #idx2 = il.Add(images.getOpenBitmap())
  40         #idx3 = il.Add(images.getNewBitmap())
  41         #idx4 = il.Add(images.getCopyBitmap())
  42         #idx5 = il.Add(images.getPasteBitmap())
  43
  44         #self.tree.SetImageList(il)
  45         #self.il = il
  46
  47         # NOTE:  For some reason tree items have to have a data object in
  48         #        order to be sorted.  Since our compare just uses the labels
  49         #        we don't need any real data, so we'll just use None.
  50
  51         self.root = self.tree.AddRoot("The Root Item")
  52         self.tree.SetPyData(self.root, None)
  53         #self.tree.SetItemImage(self.root, idx1)
  54
  55         for x in range(15):
  56             child = self.tree.AppendItem(self.root, "Item %d" % x)
  57             self.tree.SetPyData(child, None)
  58             #self.tree.SetItemImage(child, idx2)
  59             #self.tree.SetItemSelectedImage(child, idx3)
  60             for y in range(5):
  61                 last = self.tree.AppendItem(child, "item %d-%s" % (x, chr(ord("a")+y)))
  62                 self.tree.SetPyData(last, None)
  63                 #self.tree.SetItemImage(last, idx4)
  64                 #self.tree.SetItemSelectedImage(last, idx5)
  65                 for z in range(5):
  66                     item = self.tree.AppendItem(last,  "item %d-%s-%d" % (x, chr(ord("a")+y), z))
  67                     self.tree.SetPyData(item, None)
  68
  69         self.tree.Expand(self.root)
  70         EVT_TREE_ITEM_EXPANDED  (self, tID, self.OnItemExpanded)
  71         EVT_TREE_ITEM_COLLAPSED (self, tID, self.OnItemCollapsed)
  72         EVT_TREE_SEL_CHANGED    (self, tID, self.OnSelChanged)
  73         EVT_TREE_BEGIN_LABEL_EDIT(self, tID, self.OnBeginEdit)
  74         EVT_TREE_END_LABEL_EDIT (self, tID, self.OnEndEdit)
  75         EVT_TREE_ITEM_ACTIVATED (self, tID, self.OnActivate)
  76
  77         EVT_LEFT_DCLICK(self.tree, self.OnLeftDClick)
  78         EVT_RIGHT_DOWN(self.tree, self.OnRightClick)
  79         EVT_RIGHT_UP(self.tree, self.OnRightUp)
  80
  81
  82     def OnRightClick(self, event):
  83         pt = event.GetPosition();
  84         item, flags = self.tree.HitTest(pt)
  85         self.log.WriteText("OnRightClick: %s, %s\n" % (self.tree.GetItemText(item),
  86                                                        type(item)))
  87         self.tree.SelectItem(item)
  88
  89
  90
  91     def OnRightUp(self, event):
  92         pt = event.GetPosition();
  93         item, flags = self.tree.HitTest(pt)
  94         self.log.WriteText("OnRightUp: %s (manually starting label edit)\n"
  95                            % self.tree.GetItemText(item))
  96         self.tree.EditLabel(item)
  97
  98
  99
 100     def OnBeginEdit(self, event):
 101         self.log.WriteText("OnBeginEdit\n")
 102         # show how to prevent edit...
 103         if self.tree.GetItemText(event.GetItem()) == "The Root Item":
 104             wxBell()
 105             self.log.WriteText("You can't edit this one...\n")
 106             event.Veto()
 107
 108     def OnEndEdit(self, event):
 109         self.log.WriteText("OnEndEdit\n")
 110         # show how to reject edit, we'll not allow any digits
 111         for x in event.GetLabel():
 112             if x in string.digits:
 113                 self.log.WriteText("You can't enter digits...\n")
 114                 event.Veto()
 115                 return
 116
 117
 118     def OnLeftDClick(self, event):
 119         pt = event.GetPosition();
 120         item, flags = self.tree.HitTest(pt)
 121         self.log.WriteText("OnLeftDClick: %s\n" % self.tree.GetItemText(item))
 122         parent = self.tree.GetItemParent(item)
 123         self.tree.SortChildren(parent)
 124         event.Skip()
 125
 126
 127     def OnSize(self, event):
 128         w,h = self.GetClientSizeTuple()
 129         self.tree.SetDimensions(0, 0, w, h)
 130
 131
 132     def OnItemExpanded(self, event):
 133         item = event.GetItem()
 134         self.log.WriteText("OnItemExpanded: %s\n" % self.tree.GetItemText(item))
 135
 136     def OnItemCollapsed(self, event):
 137         item = event.GetItem()
 138         self.log.WriteText("OnItemCollapsed: %s\n" % self.tree.GetItemText(item))
 139
 140     def OnSelChanged(self, event):
 141         self.item = event.GetItem()
 142         self.log.WriteText("OnSelChanged: %s\n" % self.tree.GetItemText(self.item))
 143         if wxPlatform == '__WXMSW__':
 144             self.log.WriteText("BoundingRect: %s\n" %
 145                                self.tree.GetBoundingRect(self.item, true))
 146         #items = self.tree.GetSelections()
 147         #print map(self.tree.GetItemText, items)
 148         event.Skip()
 149
 150
 151     def OnActivate(self, evt):
 152         self.log.WriteText("OnActivate: %s\n" % self.tree.GetItemText(self.item))
 153
 154
 155 #---------------------------------------------------------------------------
 156
 157 def runTest(frame, nb, log):
 158     win = TestTreeCtrlPanel(nb, log)
 159     return win
 160
 161 #---------------------------------------------------------------------------
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175 overview = """\
 176 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.
 177
 178 wxTreeCtrl()
 179 -------------------------
 180
 181 Default constructor.
 182
 183 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")
 184
 185 Constructor, creating and showing a tree control.
 186
 187 Parameters
 188 -------------------
 189
 190 parent = Parent window. Must not be NULL.
 191
 192 id = Window identifier. A value of -1 indicates a default value.
 193
 194 pos = Window position.
 195
 196 size = Window size. If the default size (-1, -1) is specified then the window is sized appropriately.
 197
 198 style = Window style. See wxTreeCtrl.
 199
 200 validator = Window validator.
 201
 202 name = Window name.
 203 """