from wxPython.wx import * import string #--------------------------------------------------------------------------- class MyTreeCtrl(wxTreeCtrl): def __init__(self, parent, id, pos, size, style, log): wxTreeCtrl.__init__(self, parent, id, pos, size, style) self.log = log def OnCompareItems(self, item1, item2): t1 = self.GetItemText(item1) t2 = self.GetItemText(item2) self.log.WriteText('compare: ' + t1 + ' <> ' + t2 + '\n') if t1 < t2: return -1 if t1 == t2: return 0 return 1 #--------------------------------------------------------------------------- class TestTreeCtrlPanel(wxPanel): def __init__(self, parent, log): # Use the WANTS_CHARS style so the panel doesn't eat the Return key. wxPanel.__init__(self, parent, -1, style=wxWANTS_CHARS) EVT_SIZE(self, self.OnSize) self.log = log tID = NewId() self.tree = MyTreeCtrl(self, tID, wxDefaultPosition, wxDefaultSize, wxTR_HAS_BUTTONS | wxTR_EDIT_LABELS | wxTR_MULTIPLE, self.log) ##import images ##il = wxImageList(16, 16) ##idx1 = il.Add(images.getSmilesBitmap()) ##idx2 = il.Add(images.getOpenBitmap()) ##idx3 = il.Add(images.getNewBitmap()) ##idx4 = il.Add(images.getCopyBitmap()) ##idx5 = il.Add(images.getPasteBitmap()) ##self.tree.SetImageList(il) ##self.il = il # NOTE: For some reason tree items have to have a data object in # order to be sorted. Since our compare just uses the labels # we don't need any real data, so we'll just use None. self.root = self.tree.AddRoot("The Root Item") self.tree.SetPyData(self.root, None) ##self.tree.SetItemImage(self.root, idx1) for x in range(15): child = self.tree.AppendItem(self.root, "Item %d" % x) self.tree.SetPyData(child, None) ##self.tree.SetItemImage(child, idx2, wxTreeItemIcon_Expanded) ##self.tree.SetItemSelectedImage(child, idx3) for y in range(5): last = self.tree.AppendItem(child, "item %d-%s" % (x, chr(ord("a")+y))) self.tree.SetPyData(last, None) ##self.tree.SetItemImage(last, idx4) ##self.tree.SetItemSelectedImage(last, idx5) for z in range(5): item = self.tree.AppendItem(last, "item %d-%s-%d" % (x, chr(ord("a")+y), z)) self.tree.SetPyData(item, None) self.tree.Expand(self.root) EVT_TREE_ITEM_EXPANDED (self, tID, self.OnItemExpanded) EVT_TREE_ITEM_COLLAPSED (self, tID, self.OnItemCollapsed) EVT_TREE_SEL_CHANGED (self, tID, self.OnSelChanged) EVT_TREE_BEGIN_LABEL_EDIT(self, tID, self.OnBeginEdit) EVT_TREE_END_LABEL_EDIT (self, tID, self.OnEndEdit) EVT_TREE_ITEM_ACTIVATED (self, tID, self.OnActivate) EVT_LEFT_DCLICK(self.tree, self.OnLeftDClick) EVT_RIGHT_DOWN(self.tree, self.OnRightClick) EVT_RIGHT_UP(self.tree, self.OnRightUp) EVT_LEFT_DOWN(self.tree, self.OnLeftDown) def OnRightClick(self, event): pt = event.GetPosition(); item, flags = self.tree.HitTest(pt) self.log.WriteText("OnRightClick: %s, %s, %s\n" % (self.tree.GetItemText(item), type(item), item.__class__)) self.tree.SelectItem(item) def OnRightUp(self, event): pt = event.GetPosition(); item, flags = self.tree.HitTest(pt) self.log.WriteText("OnRightUp: %s (manually starting label edit)\n" % self.tree.GetItemText(item)) self.tree.EditLabel(item) # prg added def OnLeftDown(self, event): self.log.WriteText("OnLeftDown") # prg debug self.itemGrabbed = False # reset self.currentViewer = event.GetEventObject() pt = event.GetPosition(); item, flags = self.currentViewer.HitTest(pt) self.itemGrabbed = (flags == 16 or flags == 64) if item.IsOk(): # need this to prevent sys crash when tree has no items itemText = self.currentViewer.GetItemText(item) self.entityObj = self.currentViewer.GetPyData(item) event.Skip() def OnBeginEdit(self, event): self.log.WriteText("OnBeginEdit\n") # show how to prevent edit... if self.tree.GetItemText(event.GetItem()) == "The Root Item": wxBell() self.log.WriteText("You can't edit this one...\n") # Lets just see what's visible of its children cookie = 0 root = event.GetItem() (child, cookie) = self.tree.GetFirstChild(root, cookie) while child.IsOk(): self.log.WriteText("Child [%s] visible = %d" % (self.tree.GetItemText(child), self.tree.IsVisible(child))) (child, cookie) = self.tree.GetNextChild(root, cookie) event.Veto() def OnEndEdit(self, event): self.log.WriteText("OnEndEdit\n") # show how to reject edit, we'll not allow any digits for x in event.GetLabel(): if x in string.digits: self.log.WriteText("You can't enter digits...\n") event.Veto() return def OnLeftDClick(self, event): pt = event.GetPosition(); item, flags = self.tree.HitTest(pt) self.log.WriteText("OnLeftDClick: %s\n" % self.tree.GetItemText(item)) parent = self.tree.GetItemParent(item) self.tree.SortChildren(parent) event.Skip() def OnSize(self, event): w,h = self.GetClientSizeTuple() self.tree.SetDimensions(0, 0, w, h) def OnItemExpanded(self, event): item = event.GetItem() self.log.WriteText("OnItemExpanded: %s\n" % self.tree.GetItemText(item)) def OnItemCollapsed(self, event): item = event.GetItem() self.log.WriteText("OnItemCollapsed: %s\n" % self.tree.GetItemText(item)) def OnSelChanged(self, event): self.item = event.GetItem() self.log.WriteText("OnSelChanged: %s\n" % self.tree.GetItemText(self.item)) if wxPlatform == '__WXMSW__': self.log.WriteText("BoundingRect: %s\n" % self.tree.GetBoundingRect(self.item, true)) #items = self.tree.GetSelections() #print map(self.tree.GetItemText, items) self.tree.SetItemText(self.item, "Selected") event.Skip() def OnActivate(self, evt): self.log.WriteText("OnActivate: %s\n" % self.tree.GetItemText(self.item)) #--------------------------------------------------------------------------- def runTest(frame, nb, log): win = TestTreeCtrlPanel(nb, log) return win #--------------------------------------------------------------------------- overview = """\ 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. """ if __name__ == '__main__': import sys,os import run run.main(['', os.path.basename(sys.argv[0])])