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