+// ----------------------------------------------------------------------------
+// Item status
+// ----------------------------------------------------------------------------
+
+bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const
+{
+ // Bug in Gnu-Win32 headers, so don't use the macro TreeView_GetItemRect
+ RECT rect;
+
+ // this ugliness comes directly from MSDN - it *is* the correct way to pass
+ // the HTREEITEM with TVM_GETITEMRECT
+ *(WXHTREEITEM *)&rect = (WXHTREEITEM)item;
+
+ // FALSE means get item rect for the whole item, not only text
+ return SendMessage(GetHwnd(), TVM_GETITEMRECT, FALSE, (LPARAM)&rect) != 0;
+}
+
+bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
+{
+ wxTreeViewItem tvItem(item, TVIF_CHILDREN);
+ DoGetItem(&tvItem);
+
+ return tvItem.cChildren != 0;
+}
+
+bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const
+{
+ // probably not a good idea to put it here
+ //wxASSERT( ItemHasChildren(item) );
+
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDED);
+ DoGetItem(&tvItem);
+
+ return (tvItem.state & TVIS_EXPANDED) != 0;
+}
+
+bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const
+{
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_SELECTED);
+ DoGetItem(&tvItem);
+
+ return (tvItem.state & TVIS_SELECTED) != 0;
+}
+
+bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const
+{
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD);
+ DoGetItem(&tvItem);
+
+ return (tvItem.state & TVIS_BOLD) != 0;
+}
+
+// ----------------------------------------------------------------------------
+// navigation
+// ----------------------------------------------------------------------------
+
+wxTreeItemId wxTreeCtrl::GetRootItem() const
+{
+ // Root may be real (visible) or virtual (hidden).
+ if ( GET_VIRTUAL_ROOT() )
+ return TVI_ROOT;
+
+ return wxTreeItemId((WXHTREEITEM) TreeView_GetRoot(GetHwnd()));
+}
+
+wxTreeItemId wxTreeCtrl::GetSelection() const
+{
+ wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), (long)(WXHTREEITEM)0,
+ wxT("this only works with single selection controls") );
+
+ return wxTreeItemId((WXHTREEITEM) TreeView_GetSelection(GetHwnd()));
+}
+
+wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const
+{
+ HTREEITEM hItem;
+
+ if ( IS_VIRTUAL_ROOT(item) )
+ {
+ // no parent for the virtual root
+ hItem = 0;
+ }
+ else // normal item
+ {
+ hItem = TreeView_GetParent(GetHwnd(), HITEM(item));
+ if ( !hItem && HasFlag(wxTR_HIDE_ROOT) )
+ {
+ // the top level items should have the virtual root as their parent
+ hItem = TVI_ROOT;
+ }
+ }
+
+ return wxTreeItemId((WXHTREEITEM)hItem);
+}
+
+wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item,
+ long& _cookie) const
+{
+ // remember the last child returned in 'cookie'
+ _cookie = (long)TreeView_GetChild(GetHwnd(), HITEM(item));
+
+ return wxTreeItemId((WXHTREEITEM)_cookie);
+}
+
+wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item),
+ long& _cookie) const
+{
+ wxTreeItemId l = wxTreeItemId((WXHTREEITEM)TreeView_GetNextSibling(GetHwnd(),
+ HITEM(_cookie)));
+ _cookie = (long)l;
+
+ return l;
+}
+
+wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const
+{
+ // can this be done more efficiently?
+ long cookie;
+
+ wxTreeItemId childLast,
+ child = GetFirstChild(item, cookie);
+ while ( child.IsOk() )
+ {
+ childLast = child;
+ child = GetNextChild(item, cookie);
+ }
+
+ return childLast;
+}
+
+wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
+{
+ return wxTreeItemId((WXHTREEITEM) TreeView_GetNextSibling(GetHwnd(), HITEM(item)));
+}
+
+wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
+{
+ return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevSibling(GetHwnd(), HITEM(item)));
+}
+
+wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const
+{
+ return wxTreeItemId((WXHTREEITEM) TreeView_GetFirstVisible(GetHwnd()));
+}
+
+wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const
+{
+ wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!"));
+
+ return wxTreeItemId((WXHTREEITEM) TreeView_GetNextVisible(GetHwnd(), HITEM(item)));
+}
+
+wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
+{
+ wxASSERT_MSG( IsVisible(item), wxT("The item you call GetPrevVisible() for must be visible itself!"));
+
+ return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevVisible(GetHwnd(), HITEM(item)));
+}
+
+// ----------------------------------------------------------------------------
+// multiple selections emulation
+// ----------------------------------------------------------------------------
+
+bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const
+{
+ // receive the desired information.
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
+ DoGetItem(&tvItem);
+
+ // state image indices are 1 based
+ return ((tvItem.state >> 12) - 1) == 1;
+}
+
+void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check)
+{
+ // receive the desired information.
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
+
+ DoGetItem(&tvItem);
+
+ // state images are one-based
+ tvItem.state = (check ? 2 : 1) << 12;
+
+ DoSetItem(&tvItem);
+}
+
+size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const
+{
+ TraverseSelections selector(this, selections);
+
+ return selector.GetCount();
+}
+
+// ----------------------------------------------------------------------------
+// Usual operations
+// ----------------------------------------------------------------------------
+
+wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
+ wxTreeItemId hInsertAfter,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ wxCHECK_MSG( parent.IsOk() || !TreeView_GetRoot(GetHwnd()),
+ wxTreeItemId(),
+ _T("can't have more than one root in the tree") );
+
+ TV_INSERTSTRUCT tvIns;
+ tvIns.hParent = HITEM(parent);
+ tvIns.hInsertAfter = HITEM(hInsertAfter);
+
+ // this is how we insert the item as the first child: supply a NULL
+ // hInsertAfter
+ if ( !tvIns.hInsertAfter )
+ {
+ tvIns.hInsertAfter = TVI_FIRST;
+ }
+
+ UINT mask = 0;
+ if ( !text.IsEmpty() )
+ {
+ mask |= TVIF_TEXT;
+ tvIns.item.pszText = (wxChar *)text.c_str(); // cast is ok
+ }
+ else
+ {
+ tvIns.item.pszText = NULL;
+ tvIns.item.cchTextMax = 0;
+ }
+
+ if ( image != -1 )
+ {
+ mask |= TVIF_IMAGE;
+ tvIns.item.iImage = image;
+
+ if ( selectedImage == -1 )
+ {
+ // take the same image for selected icon if not specified
+ selectedImage = image;
+ }
+ }
+
+ if ( selectedImage != -1 )
+ {
+ mask |= TVIF_SELECTEDIMAGE;
+ tvIns.item.iSelectedImage = selectedImage;
+ }
+
+ if ( data != NULL )
+ {
+ mask |= TVIF_PARAM;
+ tvIns.item.lParam = (LPARAM)data;
+ }
+
+ tvIns.item.mask = mask;
+
+ HTREEITEM id = (HTREEITEM) TreeView_InsertItem(GetHwnd(), &tvIns);
+ if ( id == 0 )
+ {
+ wxLogLastError(wxT("TreeView_InsertItem"));
+ }
+
+ if ( data != NULL )
+ {
+ // associate the application tree item with Win32 tree item handle
+ data->SetId((WXHTREEITEM)id);
+ }
+
+ return wxTreeItemId((WXHTREEITEM)id);
+}
+
+// for compatibility only
+wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
+ const wxString& text,
+ int image, int selImage,
+ long insertAfter)
+{
+ return DoInsertItem(parent, (WXHTREEITEM)insertAfter, text,
+ image, selImage, NULL);
+}
+
+wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+
+ if ( m_windowStyle & wxTR_HIDE_ROOT )
+ {
+ // create a virtual root item, the parent for all the others
+ m_pVirtualRoot = new wxVirtualNode(data);
+
+ return TVI_ROOT;
+ }
+
+ return DoInsertItem(wxTreeItemId((long)(WXHTREEITEM) 0), (long)(WXHTREEITEM) 0,
+ text, image, selectedImage, data);
+}
+
+wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ return DoInsertItem(parent, (WXHTREEITEM) TVI_FIRST,
+ text, image, selectedImage, data);
+}
+
+wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
+ const wxTreeItemId& idPrevious,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ return DoInsertItem(parent, idPrevious, text, image, selectedImage, data);
+}
+
+wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
+ size_t index,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ // find the item from index
+ long cookie;
+ wxTreeItemId idPrev, idCur = GetFirstChild(parent, cookie);
+ while ( index != 0 && idCur.IsOk() )
+ {
+ index--;
+
+ idPrev = idCur;
+ idCur = GetNextChild(parent, cookie);
+ }
+
+ // assert, not check: if the index is invalid, we will append the item
+ // to the end
+ wxASSERT_MSG( index == 0, _T("bad index in wxTreeCtrl::InsertItem") );
+
+ return DoInsertItem(parent, idPrev, text, image, selectedImage, data);
+}
+
+wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parent,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ return DoInsertItem(parent, (WXHTREEITEM) TVI_LAST,
+ text, image, selectedImage, data);
+}
+
+void wxTreeCtrl::Delete(const wxTreeItemId& item)
+{
+ if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteItem"));
+ }
+}
+
+// delete all children (but don't delete the item itself)
+void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
+{
+ long cookie;
+
+ wxArrayLong children;
+ wxTreeItemId child = GetFirstChild(item, cookie);
+ while ( child.IsOk() )
+ {
+ children.Add((long)(WXHTREEITEM)child);
+
+ child = GetNextChild(item, cookie);
+ }
+
+ size_t nCount = children.Count();
+ for ( size_t n = 0; n < nCount; n++ )
+ {
+ if ( !TreeView_DeleteItem(GetHwnd(), (HTREEITEM)children[n]) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteItem"));
+ }
+ }
+}
+
+void wxTreeCtrl::DeleteAllItems()
+{
+ // delete stored root item.
+ delete GET_VIRTUAL_ROOT();
+
+ if ( !TreeView_DeleteAllItems(GetHwnd()) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteAllItems"));
+ }
+}
+
+void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag)
+{
+ wxASSERT_MSG( flag == TVE_COLLAPSE ||
+ flag == (TVE_COLLAPSE | TVE_COLLAPSERESET) ||
+ flag == TVE_EXPAND ||
+ flag == TVE_TOGGLE,
+ wxT("Unknown flag in wxTreeCtrl::DoExpand") );
+
+ // A hidden root can be neither expanded nor collapsed.
+ wxCHECK_RET( !(m_windowStyle & wxTR_HIDE_ROOT) || (HITEM(item) != TVI_ROOT),
+ wxT("Can't expand/collapse hidden root node!") )
+
+ // TreeView_Expand doesn't send TVN_ITEMEXPAND(ING) messages, so we must
+ // emulate them. This behaviour has changed slightly with comctl32.dll
+ // v 4.70 - now it does send them but only the first time. To maintain
+ // compatible behaviour and also in order to not have surprises with the
+ // future versions, don't rely on this and still do everything ourselves.
+ // To avoid that the messages be sent twice when the item is expanded for
+ // the first time we must clear TVIS_EXPANDEDONCE style manually.
+
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDEDONCE);
+ tvItem.state = 0;
+ DoSetItem(&tvItem);
+
+ if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 )
+ {
+ wxTreeEvent event(wxEVT_NULL, m_windowId);
+ event.m_item = item;
+ event.SetEventObject(this);
+
+ // note that the {EXPAND|COLLAPS}ING event is sent by TreeView_Expand()
+ // itself
+ event.SetEventType(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
+ : IDX_COLLAPSE]
+ [IDX_DONE]);
+
+ (void)GetEventHandler()->ProcessEvent(event);
+ }
+ //else: change didn't took place, so do nothing at all
+}
+
+void wxTreeCtrl::Expand(const wxTreeItemId& item)
+{
+ DoExpand(item, TVE_EXPAND);
+}
+
+void wxTreeCtrl::Collapse(const wxTreeItemId& item)
+{
+ DoExpand(item, TVE_COLLAPSE);
+}
+
+void wxTreeCtrl::CollapseAndReset(const wxTreeItemId& item)
+{
+ DoExpand(item, TVE_COLLAPSE | TVE_COLLAPSERESET);
+}
+
+void wxTreeCtrl::Toggle(const wxTreeItemId& item)
+{
+ DoExpand(item, TVE_TOGGLE);
+}
+
+void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action)
+{
+ DoExpand(item, action);
+}
+
+void wxTreeCtrl::Unselect()
+{
+ wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE),
+ wxT("doesn't make sense, may be you want UnselectAll()?") );
+
+ // just remove the selection
+ SelectItem(wxTreeItemId((long) (WXHTREEITEM) 0));
+}
+
+void wxTreeCtrl::UnselectAll()
+{
+ if ( m_windowStyle & wxTR_MULTIPLE )
+ {
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+ for ( size_t n = 0; n < count; n++ )
+ {
+#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ SetItemCheck(selections[n], FALSE);
+#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ ::UnselectItem(GetHwnd(), HITEM(selections[n]));
+#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ }
+ }
+ else
+ {
+ // just remove the selection
+ Unselect();
+ }
+}
+
+void wxTreeCtrl::SelectItem(const wxTreeItemId& item)
+{
+ if ( m_windowStyle & wxTR_MULTIPLE )
+ {
+#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ // selecting the item means checking it
+ SetItemCheck(item);
+#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ ::SelectItem(GetHwnd(), HITEM(item));
+#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ }
+ else
+ {
+ // inspite of the docs (MSDN Jan 99 edition), we don't seem to receive
+ // the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so
+ // send them ourselves
+
+ wxTreeEvent event(wxEVT_NULL, m_windowId);
+ event.m_item = item;
+ event.SetEventObject(this);
+
+ event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING);
+ if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
+ {
+ if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_SelectItem"));
+ }
+ else
+ {
+ event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
+ (void)GetEventHandler()->ProcessEvent(event);
+ }
+ }
+ //else: program vetoed the change
+ }
+}
+
+void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
+{
+ // no error return
+ TreeView_EnsureVisible(GetHwnd(), HITEM(item));
+}
+
+void wxTreeCtrl::ScrollTo(const wxTreeItemId& item)
+{
+ if ( !TreeView_SelectSetFirstVisible(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_SelectSetFirstVisible"));
+ }
+}
+
+wxTextCtrl* wxTreeCtrl::GetEditControl() const
+{
+ return m_textCtrl;
+}
+
+void wxTreeCtrl::DeleteTextCtrl()
+{
+ if ( m_textCtrl )
+ {
+ // the HWND corresponding to this control is deleted by the tree
+ // control itself and we don't know when exactly this happens, so check
+ // if the window still exists before calling UnsubclassWin()
+ if ( !::IsWindow(GetHwndOf(m_textCtrl)) )
+ {
+ m_textCtrl->SetHWND(0);
+ }
+
+ m_textCtrl->UnsubclassWin();
+ m_textCtrl->SetHWND(0);
+ delete m_textCtrl;
+ m_textCtrl = NULL;
+ }
+}
+
+wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item,
+ wxClassInfo* textControlClass)
+{
+ wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) );
+
+ DeleteTextCtrl();
+
+ m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
+ HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), HITEM(item));
+
+ // this is not an error - the TVN_BEGINLABELEDIT handler might have
+ // returned FALSE
+ if ( !hWnd )
+ {
+ delete m_textCtrl;
+ m_textCtrl = NULL;
+ return NULL;
+ }
+
+ // textctrl is subclassed in MSWOnNotify
+ return m_textCtrl;
+}
+
+// End label editing, optionally cancelling the edit
+void wxTreeCtrl::EndEditLabel(const wxTreeItemId& WXUNUSED(item), bool discardChanges)
+{
+ TreeView_EndEditLabelNow(GetHwnd(), discardChanges);
+
+ DeleteTextCtrl();
+}
+
+wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags)
+{
+ TV_HITTESTINFO hitTestInfo;
+ hitTestInfo.pt.x = (int)point.x;
+ hitTestInfo.pt.y = (int)point.y;
+
+ TreeView_HitTest(GetHwnd(), &hitTestInfo);
+
+ flags = 0;
+
+ // avoid repetition
+ #define TRANSLATE_FLAG(flag) if ( hitTestInfo.flags & TVHT_##flag ) \
+ flags |= wxTREE_HITTEST_##flag
+
+ TRANSLATE_FLAG(ABOVE);
+ TRANSLATE_FLAG(BELOW);
+ TRANSLATE_FLAG(NOWHERE);
+ TRANSLATE_FLAG(ONITEMBUTTON);
+ TRANSLATE_FLAG(ONITEMICON);
+ TRANSLATE_FLAG(ONITEMINDENT);
+ TRANSLATE_FLAG(ONITEMLABEL);
+ TRANSLATE_FLAG(ONITEMRIGHT);
+ TRANSLATE_FLAG(ONITEMSTATEICON);
+ TRANSLATE_FLAG(TOLEFT);
+ TRANSLATE_FLAG(TORIGHT);
+
+ #undef TRANSLATE_FLAG
+
+ return wxTreeItemId((WXHTREEITEM) hitTestInfo.hItem);
+}
+
+bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
+ wxRect& rect,
+ bool textOnly) const
+{
+ RECT rc;
+ if ( TreeView_GetItemRect(GetHwnd(), HITEM(item),
+ &rc, textOnly) )
+ {
+ rect = wxRect(wxPoint(rc.left, rc.top), wxPoint(rc.right, rc.bottom));
+
+ return TRUE;
+ }
+ else
+ {
+ // couldn't retrieve rect: for example, item isn't visible
+ return FALSE;
+ }
+}
+
+// ----------------------------------------------------------------------------
+// sorting stuff
+// ----------------------------------------------------------------------------
+
+// this is just a tiny namespace which is friend to wxTreeCtrl and so can use
+// functions such as IsDataIndirect()
+class wxTreeSortHelper
+{
+public:
+ static int CALLBACK Compare(LPARAM data1, LPARAM data2, LPARAM tree);
+
+private:
+ static wxTreeItemId GetIdFromData(wxTreeCtrl *tree, LPARAM item)
+ {
+ wxTreeItemData *data = (wxTreeItemData *)item;
+ if ( tree->IsDataIndirect(data) )
+ {
+ data = ((wxTreeItemIndirectData *)data)->GetData();
+ }
+
+ return data->GetId();
+ }
+};
+
+int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1,
+ LPARAM pItem2,
+ LPARAM htree)
+{
+ wxCHECK_MSG( pItem1 && pItem2, 0,
+ wxT("sorting tree without data doesn't make sense") );
+
+ wxTreeCtrl *tree = (wxTreeCtrl *)htree;
+
+ return tree->OnCompareItems(GetIdFromData(tree, pItem1),
+ GetIdFromData(tree, pItem2));
+}
+
+int wxTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
+ const wxTreeItemId& item2)
+{
+ return wxStrcmp(GetItemText(item1), GetItemText(item2));
+}
+
+void wxTreeCtrl::SortChildren(const wxTreeItemId& item)
+{
+ // rely on the fact that TreeView_SortChildren does the same thing as our
+ // default behaviour, i.e. sorts items alphabetically and so call it
+ // directly if we're not in derived class (much more efficient!)
+ if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) )
+ {
+ TreeView_SortChildren(GetHwnd(), HITEM(item), 0);
+ }
+ else
+ {
+ TV_SORTCB tvSort;
+ tvSort.hParent = HITEM(item);
+ tvSort.lpfnCompare = wxTreeSortHelper::Compare;
+ tvSort.lParam = (LPARAM)this;
+ TreeView_SortChildrenCB(GetHwnd(), &tvSort, 0 /* reserved */);
+ }
+}
+
+// ----------------------------------------------------------------------------
+// implementation
+// ----------------------------------------------------------------------------
+
+bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
+{
+ if ( cmd == EN_UPDATE )
+ {
+ wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
+ event.SetEventObject( this );
+ ProcessCommand(event);
+ }
+ else if ( cmd == EN_KILLFOCUS )
+ {
+ wxCommandEvent event(wxEVT_KILL_FOCUS, id);
+ event.SetEventObject( this );
+ ProcessCommand(event);
+ }
+ else
+ {
+ // nothing done
+ return FALSE;
+ }
+
+ // command processed
+ return TRUE;
+}
+
+// we hook into WndProc to process WM_MOUSEMOVE/WM_BUTTONUP messages - as we
+// only do it during dragging, minimize wxWin overhead (this is important for
+// WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly
+// instead of passing by wxWin events
+long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+ bool processed = FALSE;
+ long rc = 0;
+ bool isMultiple = (GetWindowStyle() & wxTR_MULTIPLE) != 0;
+
+ if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) )
+ {
+ // we only process mouse messages here and these parameters have the same
+ // meaning for all of them
+ int x = GET_X_LPARAM(lParam),
+ y = GET_Y_LPARAM(lParam);
+ HTREEITEM htItem = GetItemFromPoint(GetHwnd(), x, y);
+
+ switch ( nMsg )
+ {
+#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ case WM_LBUTTONDOWN:
+ if ( htItem && isMultiple )
+ {
+ if ( wParam & MK_CONTROL )
+ {
+ SetFocus();
+
+ // toggle selected state
+ ToggleItemSelection(GetHwnd(), htItem);
+
+ ::SetFocus(GetHwnd(), htItem);
+
+ // reset on any click without Shift
+ m_htSelStart = 0;
+
+ processed = TRUE;
+ }
+ else if ( wParam & MK_SHIFT )
+ {
+ // this selects all items between the starting one and
+ // the current
+
+ if ( !m_htSelStart )
+ {
+ // take the focused item
+ m_htSelStart = (WXHTREEITEM)
+ TreeView_GetSelection(GetHwnd());
+ }
+
+ SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem,
+ !(wParam & MK_CONTROL));
+
+ ::SetFocus(GetHwnd(), htItem);
+
+ processed = TRUE;
+ }
+ else // normal click
+ {
+ // clear the selection and then let the default handler
+ // do the job
+ UnselectAll();
+
+ // prevent the click from starting in-place editing
+ // when there was no selection in the control
+ TreeView_SelectItem(GetHwnd(), 0);
+
+ // reset on any click without Shift
+ m_htSelStart = 0;
+ }
+ }
+ break;
+#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+
+ case WM_MOUSEMOVE:
+ if ( m_dragImage )
+ {
+ m_dragImage->Move(wxPoint(x, y));
+ if ( htItem )
+ {
+ // highlight the item as target (hiding drag image is
+ // necessary - otherwise the display will be corrupted)
+ m_dragImage->Hide();
+ TreeView_SelectDropTarget(GetHwnd(), htItem);
+ m_dragImage->Show();
+ }
+ }
+ break;
+
+ case WM_LBUTTONUP:
+ case WM_RBUTTONUP:
+ if ( m_dragImage )
+ {
+ m_dragImage->EndDrag();
+ delete m_dragImage;
+ m_dragImage = NULL;
+
+ // generate the drag end event
+ wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId);
+
+ event.m_item = (WXHTREEITEM)htItem;
+ event.m_pointDrag = wxPoint(x, y);
+ event.SetEventObject(this);
+
+ (void)GetEventHandler()->ProcessEvent(event);
+
+ // if we don't do it, the tree seems to think that 2 items
+ // are selected simultaneously which is quite weird
+ TreeView_SelectDropTarget(GetHwnd(), 0);
+ }
+ break;
+ }
+ }
+#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple )
+ {
+ // the tree control greys out the selected item when it loses focus and
+ // paints it as selected again when it regains it, but it won't do it
+ // for the other items itself - help it
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+ RECT rect;
+ for ( size_t n = 0; n < count; n++ )
+ {
+ // TreeView_GetItemRect() will return FALSE if item is not visible,
+ // which may happen perfectly well
+ if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
+ &rect, TRUE) )
+ {
+ ::InvalidateRect(GetHwnd(), &rect, FALSE);
+ }
+ }
+ }
+ else if ( nMsg == WM_KEYDOWN && isMultiple )
+ {
+ bool bCtrl = wxIsCtrlDown(),
+ bShift = wxIsShiftDown();
+
+ // we handle.arrows and space, but not page up/down and home/end: the
+ // latter should be easy, but not the former
+
+ HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ if ( !m_htSelStart )
+ {
+ m_htSelStart = (WXHTREEITEM)htSel;
+ }
+
+ if ( wParam == VK_SPACE )
+ {
+ if ( bCtrl )
+ {
+ ToggleItemSelection(GetHwnd(), htSel);
+ }
+ else
+ {
+ UnselectAll();
+
+ ::SelectItem(GetHwnd(), htSel);
+ }
+
+ processed = TRUE;
+ }
+ else if ( wParam == VK_UP || wParam == VK_DOWN )
+ {
+ if ( !bCtrl && !bShift )
+ {
+ // no modifiers, just clear selection and then let the default
+ // processing to take place
+ UnselectAll();
+ }
+ else if ( htSel )
+ {
+ (void)wxControl::MSWWindowProc(nMsg, wParam, lParam);
+
+ HTREEITEM htNext = (HTREEITEM)(wParam == VK_UP
+ ? TreeView_GetPrevVisible(GetHwnd(), htSel)
+ : TreeView_GetNextVisible(GetHwnd(), htSel));
+
+ if ( !htNext )
+ {
+ // at the top/bottom
+ htNext = htSel;
+ }
+
+ if ( bShift )
+ {
+ SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext);
+ }
+ else // bCtrl
+ {
+ // without changing selection
+ ::SetFocus(GetHwnd(), htNext);
+ }
+
+ processed = TRUE;
+ }
+ }
+ }
+#endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ if ( !processed )
+ rc = wxControl::MSWWindowProc(nMsg, wParam, lParam);
+
+ return rc;
+}
+
+// process WM_NOTIFY Windows message
+bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
+{
+ wxTreeEvent event(wxEVT_NULL, m_windowId);
+ wxEventType eventType = wxEVT_NULL;
+ NMHDR *hdr = (NMHDR *)lParam;
+
+ switch ( hdr->code )
+ {
+ case TVN_BEGINDRAG:
+ eventType = wxEVT_COMMAND_TREE_BEGIN_DRAG;
+ // fall through
+
+ case TVN_BEGINRDRAG:
+ {
+ if ( eventType == wxEVT_NULL )
+ eventType = wxEVT_COMMAND_TREE_BEGIN_RDRAG;
+ //else: left drag, already set above
+
+ NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
+
+ event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
+ event.m_pointDrag = wxPoint(tv->ptDrag.x, tv->ptDrag.y);
+
+ // don't allow dragging by default: the user code must
+ // explicitly say that it wants to allow it to avoid breaking
+ // the old apps
+ event.Veto();
+ }
+ break;
+
+ case TVN_BEGINLABELEDIT:
+ {
+ eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT;
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+
+ event.m_item = (WXHTREEITEM) info->item.hItem;
+ event.m_label = info->item.pszText;
+ }
+ break;
+
+ case TVN_DELETEITEM:
+ {
+ eventType = wxEVT_COMMAND_TREE_DELETE_ITEM;
+ NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
+
+ event.m_item = (WXHTREEITEM)tv->itemOld.hItem;
+
+ if ( m_hasAnyAttr )
+ {
+ delete (wxTreeItemAttr *)m_attrs.
+ Delete((long)tv->itemOld.hItem);
+ }
+ }
+ break;
+
+ case TVN_ENDLABELEDIT:
+ {
+ eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT;
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+
+ event.m_item = (WXHTREEITEM)info->item.hItem;
+ event.m_label = info->item.pszText;
+ if (info->item.pszText == NULL)
+ return FALSE;
+ break;
+ }
+
+ case TVN_GETDISPINFO:
+ eventType = wxEVT_COMMAND_TREE_GET_INFO;
+ // fall through
+
+ case TVN_SETDISPINFO:
+ {
+ if ( eventType == wxEVT_NULL )
+ eventType = wxEVT_COMMAND_TREE_SET_INFO;
+ //else: get, already set above
+
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+
+ event.m_item = (WXHTREEITEM) info->item.hItem;
+ break;
+ }
+
+ case TVN_ITEMEXPANDING:
+ case TVN_ITEMEXPANDED:
+ {
+ NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam;
+
+ int what;
+ switch ( tv->action )
+ {
+ default:
+ wxLogDebug(wxT("unexpected code %d in TVN_ITEMEXPAND message"), tv->action);
+ // fall through
+
+ case TVE_EXPAND:
+ what = IDX_EXPAND;
+ break;
+
+ case TVE_COLLAPSE:
+ what = IDX_COLLAPSE;
+ break;
+ }
+
+ int how = (int)hdr->code == TVN_ITEMEXPANDING ? IDX_DOING
+ : IDX_DONE;
+
+ eventType = gs_expandEvents[what][how];
+
+ event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
+ }
+ break;
+
+ case TVN_KEYDOWN:
+ {
+ eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
+ TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
+
+ // we pass 0 as 2 last CreateKeyEvent() parameters because we
+ // don't have access to the real key press flags here - but as
+ // it is only used to determin wxKeyEvent::m_altDown flag it's
+ // not too bad
+ event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,
+ wxCharCodeMSWToWX(info->wVKey));
+
+ // a separate event for Space/Return
+ if ( !wxIsCtrlDown() && !wxIsShiftDown() &&
+ ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) )
+ {
+ wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
+ m_windowId);
+ event2.SetEventObject(this);
+ if ( !(GetWindowStyle() & wxTR_MULTIPLE) )
+ {
+ event2.m_item = GetSelection();
+ }
+ //else: don't know how to get it
+
+ (void)GetEventHandler()->ProcessEvent(event2);
+ }
+ }
+ break;
+
+ case TVN_SELCHANGED:
+ eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
+ // fall through
+
+ case TVN_SELCHANGING:
+ {
+ if ( eventType == wxEVT_NULL )
+ eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
+ //else: already set above
+
+ NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
+
+ event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
+ event.m_itemOld = (WXHTREEITEM) tv->itemOld.hItem;
+ }
+ break;
+
+#if defined(_WIN32_IE) && _WIN32_IE >= 0x300 && !wxUSE_COMCTL32_SAFELY && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
+ case NM_CUSTOMDRAW:
+ {
+ LPNMTVCUSTOMDRAW lptvcd = (LPNMTVCUSTOMDRAW)lParam;
+ NMCUSTOMDRAW& nmcd = lptvcd->nmcd;
+ switch ( nmcd.dwDrawStage )
+ {
+ case CDDS_PREPAINT:
+ // if we've got any items with non standard attributes,
+ // notify us before painting each item
+ *result = m_hasAnyAttr ? CDRF_NOTIFYITEMDRAW
+ : CDRF_DODEFAULT;
+ break;
+
+ case CDDS_ITEMPREPAINT:
+ {
+ wxTreeItemAttr *attr =
+ (wxTreeItemAttr *)m_attrs.Get(nmcd.dwItemSpec);
+
+ if ( !attr )
+ {
+ // nothing to do for this item
+ *result = CDRF_DODEFAULT;
+ break;
+ }
+
+ HFONT hFont;
+ wxColour colText, colBack;
+ if ( attr->HasFont() )
+ {
+ wxFont font = attr->GetFont();
+ hFont = (HFONT)font.GetResourceHandle();
+ }
+ else
+ {
+ hFont = 0;
+ }
+
+ if ( attr->HasTextColour() )
+ {
+ colText = attr->GetTextColour();
+ }
+ else
+ {
+ colText = GetForegroundColour();
+ }
+
+ // selection colours should override ours
+ if ( nmcd.uItemState & CDIS_SELECTED )
+ {
+ DWORD clrBk = ::GetSysColor(COLOR_HIGHLIGHT);
+ lptvcd->clrTextBk = clrBk;
+
+ // try to make the text visible
+ lptvcd->clrText = wxColourToRGB(colText);
+ lptvcd->clrText |= ~clrBk;
+ lptvcd->clrText &= 0x00ffffff;
+ }
+ else
+ {
+ if ( attr->HasBackgroundColour() )
+ {
+ colBack = attr->GetBackgroundColour();
+ }
+ else
+ {
+ colBack = GetBackgroundColour();
+ }
+
+ lptvcd->clrText = wxColourToRGB(colText);
+ lptvcd->clrTextBk = wxColourToRGB(colBack);
+ }
+
+ // note that if we wanted to set colours for
+ // individual columns (subitems), we would have
+ // returned CDRF_NOTIFYSUBITEMREDRAW from here
+ if ( hFont )
+ {
+ ::SelectObject(nmcd.hdc, hFont);
+
+ *result = CDRF_NEWFONT;
+ }
+ else
+ {
+ *result = CDRF_DODEFAULT;
+ }
+ }
+ break;
+
+ default:
+ *result = CDRF_DODEFAULT;
+ }
+ }
+
+ // we always process it
+ return TRUE;
+#endif // _WIN32_IE >= 0x300
+
+ case NM_DBLCLK:
+ case NM_RCLICK:
+ {
+ TV_HITTESTINFO tvhti;
+ ::GetCursorPos(&tvhti.pt);
+ ::ScreenToClient(GetHwnd(), &tvhti.pt);
+ if ( TreeView_HitTest(GetHwnd(), &tvhti) )
+ {
+ if ( tvhti.flags & TVHT_ONITEM )
+ {
+ event.m_item = (WXHTREEITEM) tvhti.hItem;
+ eventType = (int)hdr->code == NM_DBLCLK
+ ? wxEVT_COMMAND_TREE_ITEM_ACTIVATED
+ : wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK;
+
+ event.m_pointDrag.x = tvhti.pt.x;
+ event.m_pointDrag.y = tvhti.pt.y;
+ }
+
+ break;
+ }
+ }
+ // fall through
+
+ default:
+ return wxControl::MSWOnNotify(idCtrl, lParam, result);
+ }
+
+ event.SetEventObject(this);
+ event.SetEventType(eventType);
+
+ bool processed = GetEventHandler()->ProcessEvent(event);
+
+ // post processing
+ switch ( hdr->code )
+ {
+ case NM_DBLCLK:
+ // we translate NM_DBLCLK into ACTIVATED event, so don't interpret
+ // the return code of this event handler as the return value for
+ // NM_DBLCLK - otherwise, double clicking the item to toggle its
+ // expanded status would never work
+ *result = FALSE;
+ break;
+
+ case TVN_BEGINDRAG:
+ case TVN_BEGINRDRAG:
+ if ( event.IsAllowed() )
+ {
+ // normally this is impossible because the m_dragImage is
+ // deleted once the drag operation is over
+ wxASSERT_MSG( !m_dragImage, _T("starting to drag once again?") );
+
+ m_dragImage = new wxDragImage(*this, event.m_item);
+ m_dragImage->BeginDrag(wxPoint(0, 0), this);
+ m_dragImage->Show();
+ }
+ break;
+
+ case TVN_DELETEITEM:
+ {
+ // NB: we might process this message using wxWindows event
+ // tables, but due to overhead of wxWin event system we
+ // prefer to do it here ourself (otherwise deleting a tree
+ // with many items is just too slow)
+ NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
+
+ wxTreeItemId item = event.m_item;
+ if ( HasIndirectData(item) )
+ {
+ wxTreeItemIndirectData *data = (wxTreeItemIndirectData *)
+ tv->itemOld.lParam;
+ delete data; // can't be NULL here
+ }
+ else
+ {
+ wxTreeItemData *data = (wxTreeItemData *)tv->itemOld.lParam;
+ delete data; // may be NULL, ok
+ }
+
+ processed = TRUE; // Make sure we don't get called twice
+ }
+ break;
+
+ case TVN_BEGINLABELEDIT:
+ // return TRUE to cancel label editing
+ *result = !event.IsAllowed();
+ // set ES_WANTRETURN ( like we do in BeginLabelEdit )
+ if(event.IsAllowed())
+ {
+ HWND hText = TreeView_GetEditControl(GetHwnd());
+ if(hText != NULL)
+ {
+ // MBN: if m_textCtrl already has an HWND, it is a stale
+ // pointer from a previous edit (because the user
+ // didn't modify the label before dismissing the control,
+ // and TVN_ENDLABELEDIT was not sent), so delete it
+ if(m_textCtrl && m_textCtrl->GetHWND() != 0)
+ DeleteTextCtrl();
+ if(!m_textCtrl)
+ m_textCtrl = new wxTextCtrl();
+ m_textCtrl->SetParent(this);
+ m_textCtrl->SetHWND((WXHWND)hText);
+ m_textCtrl->SubclassWin((WXHWND)hText);
+
+ // set wxTE_PROCESS_ENTER style for the text control to
+ // force it to process the Enter presses itself, otherwise
+ // they could be stolen from it by the dialog
+ // navigation code
+ m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle()
+ | wxTE_PROCESS_ENTER);
+ }
+ }
+ break;
+
+ case TVN_ENDLABELEDIT:
+ // return TRUE to set the label to the new string: note that we
+ // also must pretend that we did process the message or it is going
+ // to be passed to DefWindowProc() which will happily return FALSE
+ // cancelling the label change
+ *result = event.IsAllowed();
+ processed = TRUE;
+
+ // ensure that we don't have the text ctrl which is going to be
+ // deleted any more
+ DeleteTextCtrl();
+ break;
+
+ case TVN_SELCHANGING:
+ case TVN_ITEMEXPANDING:
+ // return TRUE to prevent the action from happening
+ *result = !event.IsAllowed();
+ break;
+
+ case TVN_ITEMEXPANDED:
+ // the item is not refreshed properly after expansion when it has
+ // an image depending on the expanded/collapsed state - bug in
+ // comctl32.dll or our code?
+ {
+ NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam;
+ if ( tv->action == TVE_EXPAND )
+ {
+ wxTreeItemId id = (WXHTREEITEM)tv->itemNew.hItem;
+
+ int image = GetItemImage(id, wxTreeItemIcon_Expanded);
+ if ( image != -1 )
+ {
+ RefreshItem(id);
+ }
+ }
+ }
+ break;
+
+ case TVN_GETDISPINFO:
+ // NB: so far the user can't set the image himself anyhow, so do it
+ // anyway - but this may change later
+// if ( /* !processed && */ 1 )
+ {
+ wxTreeItemId item = event.m_item;
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+ if ( info->item.mask & TVIF_IMAGE )
+ {
+ info->item.iImage =
+ DoGetItemImageFromData
+ (
+ item,
+ IsExpanded(item) ? wxTreeItemIcon_Expanded
+ : wxTreeItemIcon_Normal
+ );
+ }
+ if ( info->item.mask & TVIF_SELECTEDIMAGE )
+ {
+ info->item.iSelectedImage =
+ DoGetItemImageFromData
+ (
+ item,
+ IsExpanded(item) ? wxTreeItemIcon_SelectedExpanded
+ : wxTreeItemIcon_Selected
+ );
+ }
+ }
+ break;
+
+ //default:
+ // for the other messages the return value is ignored and there is
+ // nothing special to do
+ }
+ return processed;
+}
+
+#endif // __WIN95__
projects / wxWidgets.git / blobdiff