+void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
+{
+ wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
+ wxTreeItemAttr *attr;
+ wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem);
+ if ( it == m_attrs.end() )
+ {
+ m_hasAnyAttr = true;
+
+ m_attrs[item.m_pItem] =
+ attr = new wxTreeItemAttr;
+ }
+ else // already in the hash
+ {
+ attr = it->second;
+ }
+
+ attr->SetFont(font);
+
+ // Reset the item's text to ensure that the bounding rect will be adjusted
+ // for the new font.
+ SetItemText(item, GetItemText(item));
+
+ RefreshItem(item);
+}
+
+// ----------------------------------------------------------------------------
+// Item status
+// ----------------------------------------------------------------------------
+
+bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+
+ if ( item == wxTreeItemId(TVI_ROOT) )
+ {
+ // virtual (hidden) root is never visible
+ return false;
+ }
+
+ // Bug in Gnu-Win32 headers, so don't use the macro TreeView_GetItemRect
+ TVGetItemRectParam param;
+
+ // true means to get rect for just the text, not the whole line
+ if ( !wxTreeView_GetItemRect(GetHwnd(), HITEM(item), param, TRUE) )
+ {
+ // if TVM_GETITEMRECT returned false, then the item is definitely not
+ // visible (because its parent is not expanded)
+ return false;
+ }
+
+ // however if it returned true, the item might still be outside the
+ // currently visible part of the tree, test for it (notice that partly
+ // visible means visible here)
+ return param.rect.bottom > 0 && param.rect.top < GetClientSize().y;
+}
+
+bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+
+ if ( IS_VIRTUAL_ROOT(item) )
+ {
+ wxTreeItemIdValue cookie;
+ return GetFirstChild(item, cookie).IsOk();
+ }
+
+ wxTreeViewItem tvItem(item, TVIF_CHILDREN);
+ DoGetItem(&tvItem);
+
+ return tvItem.cChildren != 0;
+}
+
+bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDED);
+ DoGetItem(&tvItem);
+
+ return (tvItem.state & TVIS_EXPANDED) != 0;
+}
+
+bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_SELECTED);
+ DoGetItem(&tvItem);
+
+ return (tvItem.state & TVIS_SELECTED) != 0;
+}
+
+bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+
+ 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(TreeView_GetRoot(GetHwnd()));
+}
+
+wxTreeItemId wxTreeCtrl::GetSelection() const
+{
+ wxCHECK_MSG( !HasFlag(wxTR_MULTIPLE), wxTreeItemId(),
+ wxT("this only works with single selection controls") );
+
+ return GetFocusedItem();
+}
+
+wxTreeItemId wxTreeCtrl::GetFocusedItem() const
+{
+ return wxTreeItemId(TreeView_GetSelection(GetHwnd()));
+}
+
+wxTreeItemId wxTreeCtrl::GetItemParent(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+
+ 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(hItem);
+}
+
+wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item,
+ wxTreeItemIdValue& cookie) const
+{
+ wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+
+ // remember the last child returned in 'cookie'
+ cookie = TreeView_GetChild(GetHwnd(), HITEM(item));
+
+ return wxTreeItemId(cookie);
+}
+
+wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item),
+ wxTreeItemIdValue& cookie) const
+{
+ wxTreeItemId fromCookie(cookie);
+
+ HTREEITEM hitem = HITEM(fromCookie);
+
+ hitem = TreeView_GetNextSibling(GetHwnd(), hitem);
+
+ wxTreeItemId item(hitem);
+
+ cookie = item.m_pItem;
+
+ return item;
+}
+
+wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+
+ // can this be done more efficiently?
+ wxTreeItemIdValue 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
+{
+ wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+ return wxTreeItemId(TreeView_GetNextSibling(GetHwnd(), HITEM(item)));
+}
+
+wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+ return wxTreeItemId(TreeView_GetPrevSibling(GetHwnd(), HITEM(item)));
+}
+
+wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const
+{
+ return wxTreeItemId(TreeView_GetFirstVisible(GetHwnd()));
+}
+
+wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+ wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!"));
+
+ wxTreeItemId next(TreeView_GetNextVisible(GetHwnd(), HITEM(item)));
+ if ( next.IsOk() && !IsVisible(next) )
+ {
+ // Win32 considers that any non-collapsed item is visible while we want
+ // to return only really visible items
+ next.Unset();
+ }
+
+ return next;
+}
+
+wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+ wxASSERT_MSG( IsVisible(item), wxT("The item you call GetPrevVisible() for must be visible itself!"));
+
+ wxTreeItemId prev(TreeView_GetPrevVisible(GetHwnd(), HITEM(item)));
+ if ( prev.IsOk() && !IsVisible(prev) )
+ {
+ // just as above, Win32 function will happily return the previous item
+ // in the tree for the first visible item too
+ prev.Unset();
+ }
+
+ return prev;
+}
+
+// ----------------------------------------------------------------------------
+// multiple selections emulation
+// ----------------------------------------------------------------------------
+
+size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const
+{
+ TraverseSelections selector(this, selections);
+
+ return selector.GetCount();
+}
+
+// ----------------------------------------------------------------------------
+// Usual operations
+// ----------------------------------------------------------------------------
+
+wxTreeItemId wxTreeCtrl::DoInsertAfter(const wxTreeItemId& parent,
+ const wxTreeItemId& hInsertAfter,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ wxCHECK_MSG( parent.IsOk() || !TreeView_GetRoot(GetHwnd()),
+ wxTreeItemId(),
+ wxT("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.empty() )
+ {
+ mask |= TVIF_TEXT;
+ tvIns.item.pszText = wxMSW_CONV_LPTSTR(text);
+ }
+ else
+ {
+ tvIns.item.pszText = NULL;
+ tvIns.item.cchTextMax = 0;
+ }
+
+ // create the param which will store the other item parameters
+ wxTreeItemParam *param = new wxTreeItemParam;
+
+ // we return the images on demand as they depend on whether the item is
+ // expanded or collapsed too in our case
+ mask |= TVIF_IMAGE | TVIF_SELECTEDIMAGE;
+ tvIns.item.iImage = I_IMAGECALLBACK;
+ tvIns.item.iSelectedImage = I_IMAGECALLBACK;
+
+ param->SetImage(image, wxTreeItemIcon_Normal);
+ param->SetImage(selectedImage, wxTreeItemIcon_Selected);
+
+ mask |= TVIF_PARAM;
+ tvIns.item.lParam = (LPARAM)param;
+ tvIns.item.mask = mask;
+
+ // don't use the hack below for the children of hidden root: this results
+ // in a crash inside comctl32.dll when we call TreeView_GetItemRect()
+ const bool firstChild = !IsHiddenRoot(parent) &&
+ !TreeView_GetChild(GetHwnd(), HITEM(parent));
+
+ HTREEITEM id = TreeView_InsertItem(GetHwnd(), &tvIns);
+ if ( id == 0 )
+ {
+ wxLogLastError(wxT("TreeView_InsertItem"));
+ }
+
+ // apparently some Windows versions (2000 and XP are reported to do this)
+ // sometimes don't refresh the tree after adding the first child and so we
+ // need this to make the "[+]" appear
+ if ( firstChild )
+ {
+ TVGetItemRectParam param;
+
+ wxTreeView_GetItemRect(GetHwnd(), HITEM(parent), param, FALSE);
+ ::InvalidateRect(GetHwnd(), ¶m.rect, FALSE);
+ }
+
+ // associate the application tree item with Win32 tree item handle
+ param->SetItem(id);
+
+ // setup wxTreeItemData
+ if ( data != NULL )
+ {
+ param->SetData(data);
+ data->SetId(id);
+ }
+
+ return wxTreeItemId(id);
+}
+
+wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ if ( HasFlag(wxTR_HIDE_ROOT) )
+ {
+ wxASSERT_MSG( !m_pVirtualRoot, wxT("tree can have only a single root") );
+
+ // create a virtual root item, the parent for all the others
+ wxTreeItemParam *param = new wxTreeItemParam;
+ param->SetData(data);
+
+ m_pVirtualRoot = new wxVirtualNode(param);
+
+ return TVI_ROOT;
+ }
+
+ return DoInsertAfter(wxTreeItemId(), wxTreeItemId(),
+ text, image, selectedImage, data);
+}
+
+wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
+ size_t index,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ wxTreeItemId idPrev;
+ if ( index == (size_t)-1 )
+ {
+ // special value: append to the end
+ idPrev = TVI_LAST;
+ }
+ else // find the item from index
+ {
+ wxTreeItemIdValue cookie;
+ wxTreeItemId 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, wxT("bad index in wxTreeCtrl::InsertItem") );
+ }
+
+ return DoInsertAfter(parent, idPrev, text, image, selectedImage, data);
+}
+
+void wxTreeCtrl::Delete(const wxTreeItemId& item)
+{
+ // unlock tree selections on vista, without this the
+ // tree ctrl will eventually crash after item deletion
+ TreeItemUnlocker unlock_all;
+
+ if ( HasFlag(wxTR_MULTIPLE) )
+ {
+ bool selected = IsSelected(item);
+ wxTreeItemId next;
+
+ if ( selected )
+ {
+ next = TreeView_GetNextVisible(GetHwnd(), HITEM(item));
+
+ if ( !next.IsOk() )
+ {
+ next = TreeView_GetPrevVisible(GetHwnd(), HITEM(item));
+ }
+ }
+
+ {
+ TempSetter set(m_changingSelection);
+ if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteItem"));
+ return;
+ }
+ }
+
+ if ( !selected )
+ {
+ return;
+ }
+
+ if ( item == m_htSelStart )
+ m_htSelStart.Unset();
+
+ if ( item == m_htClickedItem )
+ m_htClickedItem.Unset();
+
+ if ( next.IsOk() )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, next);
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this, next);
+ (void)HandleTreeEvent(changedEvent);
+ }
+ else
+ {
+ DoUnselectItem(next);
+ ClearFocusedItem();
+ }
+ }
+ }
+ else
+ {
+ 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)
+{
+ // unlock tree selections on vista for the duration of this call
+ TreeItemUnlocker unlock_all;
+
+ wxTreeItemIdValue cookie;
+
+ wxArrayTreeItemIds children;
+ wxTreeItemId child = GetFirstChild(item, cookie);
+ while ( child.IsOk() )
+ {
+ children.Add(child);
+
+ child = GetNextChild(item, cookie);
+ }
+
+ size_t nCount = children.Count();
+ for ( size_t n = 0; n < nCount; n++ )
+ {
+ Delete(children[n]);
+ }
+}
+
+void wxTreeCtrl::DeleteAllItems()
+{
+ // unlock tree selections on vista for the duration of this call
+ TreeItemUnlocker unlock_all;
+
+ // invalidate all the items we store as they're going to become invalid
+ m_htSelStart =
+ m_htClickedItem = wxTreeItemId();
+
+ // delete the "virtual" root item.
+ if ( GET_VIRTUAL_ROOT() )
+ {
+ delete GET_VIRTUAL_ROOT();
+ m_pVirtualRoot = NULL;
+ }
+
+ // and all the real items
+
+ 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( !IsHiddenRoot(item),
+ 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 ( IsExpanded(item) )
+ {
+ wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_COLLAPSING,
+ this, wxTreeItemId(item));
+
+ if ( !IsTreeEventAllowed(event) )
+ return;
+ }
+
+ if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) )
+ {
+ if ( IsExpanded(item) )
+ return;
+
+ wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_COLLAPSED, this, item);
+ (void)HandleTreeEvent(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::Unselect()
+{
+ wxASSERT_MSG( !HasFlag(wxTR_MULTIPLE),
+ wxT("doesn't make sense, may be you want UnselectAll()?") );
+
+ // the current focus
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+
+ if ( !htFocus )
+ {
+ return;
+ }
+
+ if ( HasFlag(wxTR_MULTIPLE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, wxTreeItemId());
+ changingEvent.m_itemOld = htFocus;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ ClearFocusedItem();
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, wxTreeItemId());
+ changedEvent.m_itemOld = htFocus;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else
+ {
+ ClearFocusedItem();
+ }
+}
+
+void wxTreeCtrl::DoUnselectAll()
+{
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ for ( size_t n = 0; n < count; n++ )
+ {
+ DoUnselectItem(selections[n]);
+ }
+
+ m_htSelStart.Unset();
+}
+
+void wxTreeCtrl::UnselectAll()
+{
+ if ( HasFlag(wxTR_MULTIPLE) )
+ {
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ if ( !htFocus ) return;
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this);
+ changingEvent.m_itemOld = htFocus;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this);
+ changedEvent.m_itemOld = htFocus;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else
+ {
+ Unselect();
+ }
+}
+
+void wxTreeCtrl::DoSelectChildren(const wxTreeItemId& parent)
+{
+ DoUnselectAll();
+
+ wxTreeItemIdValue cookie;
+ wxTreeItemId child = GetFirstChild(parent, cookie);
+ while ( child.IsOk() )
+ {
+ DoSelectItem(child, true);
+ child = GetNextChild(child, cookie);
+ }
+}
+
+void wxTreeCtrl::SelectChildren(const wxTreeItemId& parent)
+{
+ wxCHECK_RET( HasFlag(wxTR_MULTIPLE),
+ "this only works with multiple selection controls" );
+
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this);
+ changingEvent.m_itemOld = htFocus;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoSelectChildren(parent);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this);
+ changedEvent.m_itemOld = htFocus;
+ (void)HandleTreeEvent(changedEvent);
+ }
+}
+
+void wxTreeCtrl::DoSelectItem(const wxTreeItemId& item, bool select)
+{
+ TempSetter set(m_changingSelection);
+
+ ::SelectItem(GetHwnd(), HITEM(item), select);
+}
+
+void wxTreeCtrl::SelectItem(const wxTreeItemId& item, bool select)
+{
+ wxCHECK_RET( !IsHiddenRoot(item), wxT("can't select hidden root item") );
+
+ if ( select == IsSelected(item) )
+ {
+ // nothing to do, the item is already in the requested state
+ return;
+ }
+
+ if ( HasFlag(wxTR_MULTIPLE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ DoSelectItem(item, select);
+
+ if ( !htFocus )
+ {
+ SetFocusedItem(item);
+ }
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, item);
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else // single selection
+ {
+ wxTreeItemId itemOld, itemNew;
+ if ( select )
+ {
+ itemOld = GetSelection();
+ itemNew = item;
+ }
+ else // deselecting the currently selected item
+ {
+ itemOld = item;
+ // leave itemNew invalid
+ }
+
+ // Recent versions of comctl32.dll send TVN_SELCHANG{ED,ING} events
+ // when we call TreeView_SelectItem() but apparently some old ones did
+ // not so send the events ourselves and ignore those generated by
+ // TreeView_SelectItem() if m_changingSelection is set.
+ wxTreeEvent
+ changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, itemNew);
+ changingEvent.SetOldItem(itemOld);
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ TempSetter set(m_changingSelection);
+
+ if ( !TreeView_SelectItem(GetHwnd(), HITEM(itemNew)) )
+ {
+ wxLogLastError(wxT("TreeView_SelectItem"));
+ }
+ else // ok
+ {
+ ::SetFocus(GetHwnd(), HITEM(item));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, itemNew);
+ changedEvent.SetOldItem(itemOld);
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ //else: program vetoed the change
+ }
+}
+
+void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
+{
+ wxCHECK_RET( !IsHiddenRoot(item), wxT("can't show hidden root 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);
+ wxDELETE(m_textCtrl);
+
+ m_idEdited.Unset();
+ }
+}
+
+wxTextCtrl *wxTreeCtrl::EditLabel(const wxTreeItemId& item,
+ wxClassInfo *textControlClass)
+{
+ wxASSERT( textControlClass->IsKindOf(wxCLASSINFO(wxTextCtrl)) );
+
+ DeleteTextCtrl();
+
+ m_idEdited = item;
+ 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 )
+ {
+ wxDELETE(m_textCtrl);
+ return NULL;
+ }
+
+ // textctrl is subclassed in MSWOnNotify
+ return m_textCtrl;
+}
+
+// End label editing, optionally cancelling the edit
+void wxTreeCtrl::DoEndEditLabel(bool discardChanges)
+{
+ TreeView_EndEditLabelNow(GetHwnd(), discardChanges);
+
+ DeleteTextCtrl();
+}
+
+wxTreeItemId wxTreeCtrl::DoTreeHitTest(const wxPoint& point, int& flags) const
+{
+ TV_HITTESTINFO hitTestInfo;
+ hitTestInfo.pt.x = (int)point.x;
+ hitTestInfo.pt.y = (int)point.y;
+
+ (void) 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(hitTestInfo.hItem);
+}
+
+bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
+ wxRect& rect,
+ bool textOnly) const
+{
+ // Virtual root items have no bounding rectangle
+ if ( IS_VIRTUAL_ROOT(item) )
+ {
+ return false;
+ }
+
+ TVGetItemRectParam param;
+
+ if ( wxTreeView_GetItemRect(GetHwnd(), HITEM(item), param, textOnly) )
+ {
+ rect = wxRect(wxPoint(param.rect.left, param.rect.top),
+ wxPoint(param.rect.right, param.rect.bottom));
+
+ return true;
+ }
+ else
+ {
+ // couldn't retrieve rect: for example, item isn't visible
+ return false;
+ }
+}
+
+void wxTreeCtrl::ClearFocusedItem()
+{
+ TempSetter set(m_changingSelection);
+
+ if ( !TreeView_SelectItem(GetHwnd(), 0) )
+ {
+ wxLogLastError(wxT("TreeView_SelectItem"));
+ }
+}
+
+void wxTreeCtrl::SetFocusedItem(const wxTreeItemId& item)
+{
+ wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
+ TempSetter set(m_changingSelection);
+
+ ::SetFocus(GetHwnd(), HITEM(item));
+}
+
+void wxTreeCtrl::DoUnselectItem(const wxTreeItemId& item)
+{
+ TempSetter set(m_changingSelection);
+
+ ::UnselectItem(GetHwnd(), HITEM(item));
+}
+
+void wxTreeCtrl::DoToggleItemSelection(const wxTreeItemId& item)
+{
+ TempSetter set(m_changingSelection);
+
+ ::ToggleItemSelection(GetHwnd(), HITEM(item));
+}
+
+// ----------------------------------------------------------------------------
+// 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(LPARAM lParam)
+ {
+ return ((wxTreeItemParam*)lParam)->GetItem();
+ }
+};
+
+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(pItem1),
+ GetIdFromData(pItem2));
+}
+
+void wxTreeCtrl::SortChildren(const wxTreeItemId& item)
+{
+ wxCHECK_RET( item.IsOk(), wxT("invalid tree 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!)
+ // RN: Note that if you find you're code doesn't sort as expected this
+ // may be why as if you don't use the DECLARE_CLASS/IMPLEMENT_CLASS
+ // combo for your derived wxTreeCtrl if will sort without
+ // OnCompareItems
+ if ( GetClassInfo() == wxCLASSINFO(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::MSWShouldPreProcessMessage(WXMSG* msg)
+{
+ if ( msg->message == WM_KEYDOWN )
+ {
+ // Only eat VK_RETURN if not being used by the application in
+ // conjunction with modifiers
+ if ( (msg->wParam == VK_RETURN) && !wxIsAnyModifierDown() )
+ {
+ // we need VK_RETURN to generate wxEVT_COMMAND_TREE_ITEM_ACTIVATED
+ return false;
+ }
+ }
+
+ return wxTreeCtrlBase::MSWShouldPreProcessMessage(msg);
+}
+
+bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id_)
+{
+ const int id = (signed short)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;
+}
+
+bool wxTreeCtrl::MSWIsOnItem(unsigned flags) const
+{
+ unsigned mask = TVHT_ONITEM;
+ if ( HasFlag(wxTR_FULL_ROW_HIGHLIGHT) )
+ mask |= TVHT_ONITEMINDENT | TVHT_ONITEMRIGHT;
+
+ return (flags & mask) != 0;
+}
+
+bool wxTreeCtrl::MSWHandleSelectionKey(unsigned vkey)
+{
+ const bool bCtrl = wxIsCtrlDown();
+ const bool bShift = wxIsShiftDown();
+ const HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+
+ switch ( vkey )
+ {
+ case VK_RETURN:
+ case VK_SPACE:
+ if ( !htSel )
+ break;
+
+ if ( vkey != VK_RETURN && bCtrl )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htSel);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoToggleItemSelection(wxTreeItemId(htSel));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htSel);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else
+ {
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ if ( count != 1 || HITEM(selections[0]) != htSel )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htSel);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(wxTreeItemId(htSel));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htSel);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ break;
+
+ case VK_UP:
+ case VK_DOWN:
+ if ( !bCtrl && !bShift )
+ {
+ wxArrayTreeItemIds selections;
+ wxTreeItemId next;
+
+ if ( htSel )
+ {
+ next = vkey == VK_UP
+ ? TreeView_GetPrevVisible(GetHwnd(), htSel)
+ : TreeView_GetNextVisible(GetHwnd(), htSel);
+ }
+ else
+ {
+ next = GetRootItem();
+
+ if ( IsHiddenRoot(next) )
+ next = TreeView_GetChild(GetHwnd(), HITEM(next));
+ }
+
+ if ( !next.IsOk() )
+ {
+ break;
+ }
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else if ( htSel )
+ {
+ wxTreeItemId next = vkey == VK_UP
+ ? TreeView_GetPrevVisible(GetHwnd(), htSel)
+ : TreeView_GetNextVisible(GetHwnd(), htSel);
+
+ if ( !next.IsOk() )
+ {
+ break;
+ }
+
+ if ( !m_htSelStart )
+ {
+ m_htSelStart = htSel;
+ }
+
+ if ( bShift && SelectRange(GetHwnd(), HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS | SR_SIMULATE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ SelectRange(GetHwnd(), HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+
+ SetFocusedItem(next);
+ }
+ break;
+
+ case VK_LEFT:
+ if ( HasChildren(htSel) && IsExpanded(htSel) )
+ {
+ Collapse(htSel);
+ }
+ else
+ {
+ wxTreeItemId next = GetItemParent(htSel);
+
+ if ( next.IsOk() && !IsHiddenRoot(next) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ break;
+
+ case VK_RIGHT:
+ if ( !IsVisible(htSel) )
+ {
+ EnsureVisible(htSel);
+ }
+
+ if ( !HasChildren(htSel) )
+ break;
+
+ if ( !IsExpanded(htSel) )
+ {
+ Expand(htSel);
+ }
+ else
+ {
+ wxTreeItemId next = TreeView_GetChild(GetHwnd(), htSel);
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ break;
+
+ case VK_HOME:
+ case VK_END:
+ {
+ wxTreeItemId next = GetRootItem();
+
+ if ( IsHiddenRoot(next) )
+ {
+ next = TreeView_GetChild(GetHwnd(), HITEM(next));
+ }
+
+ if ( !next.IsOk() )
+ break;
+
+ if ( vkey == VK_END )
+ {
+ for ( ;; )
+ {
+ wxTreeItemId nextTemp = TreeView_GetNextVisible(
+ GetHwnd(), HITEM(next));
+
+ if ( !nextTemp.IsOk() )
+ break;
+
+ next = nextTemp;
+ }
+ }
+
+ if ( htSel == HITEM(next) )
+ break;
+
+ if ( bShift )
+ {
+ if ( !m_htSelStart )
+ {
+ m_htSelStart = htSel;
+ }
+
+ if ( SelectRange(GetHwnd(),
+ HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS | SR_SIMULATE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ SelectRange(GetHwnd(),
+ HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ else // no Shift
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ break;
+
+ case VK_PRIOR:
+ case VK_NEXT:
+ if ( bCtrl )
+ {
+ wxTreeItemId firstVisible = GetFirstVisibleItem();
+ size_t visibleCount = TreeView_GetVisibleCount(GetHwnd());
+ wxTreeItemId nextAdjacent = (vkey == VK_PRIOR) ?
+ TreeView_GetPrevVisible(GetHwnd(), HITEM(firstVisible)) :
+ TreeView_GetNextVisible(GetHwnd(), HITEM(firstVisible));
+
+ if ( !nextAdjacent )
+ {
+ break;
+ }
+
+ wxTreeItemId nextStart = firstVisible;
+
+ for ( size_t n = 1; n < visibleCount; n++ )
+ {
+ wxTreeItemId nextTemp = (vkey == VK_PRIOR) ?
+ TreeView_GetPrevVisible(GetHwnd(), HITEM(nextStart)) :
+ TreeView_GetNextVisible(GetHwnd(), HITEM(nextStart));
+
+ if ( nextTemp.IsOk() )
+ {
+ nextStart = nextTemp;
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ EnsureVisible(nextStart);
+
+ if ( vkey == VK_NEXT )
+ {
+ wxTreeItemId nextEnd = nextStart;
+
+ for ( size_t n = 1; n < visibleCount; n++ )
+ {
+ wxTreeItemId nextTemp =
+ TreeView_GetNextVisible(GetHwnd(), HITEM(nextEnd));
+
+ if ( nextTemp.IsOk() )
+ {
+ nextEnd = nextTemp;
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ EnsureVisible(nextEnd);
+ }
+ }
+ else // no Ctrl
+ {
+ size_t visibleCount = TreeView_GetVisibleCount(GetHwnd());
+ wxTreeItemId nextAdjacent = (vkey == VK_PRIOR) ?
+ TreeView_GetPrevVisible(GetHwnd(), htSel) :
+ TreeView_GetNextVisible(GetHwnd(), htSel);
+
+ if ( !nextAdjacent )
+ {
+ break;
+ }
+
+ wxTreeItemId next(htSel);
+
+ for ( size_t n = 1; n < visibleCount; n++ )
+ {
+ wxTreeItemId nextTemp = vkey == VK_PRIOR ?
+ TreeView_GetPrevVisible(GetHwnd(), HITEM(next)) :
+ TreeView_GetNextVisible(GetHwnd(), HITEM(next));
+
+ if ( !nextTemp.IsOk() )
+ break;
+
+ next = nextTemp;
+ }
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ m_htSelStart.Unset();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ break;
+
+ default:
+ return false;
+ }
+
+ return true;
+}
+
+bool wxTreeCtrl::MSWHandleTreeKeyDownEvent(WXWPARAM wParam, WXLPARAM lParam)
+{
+ wxTreeEvent keyEvent(wxEVT_COMMAND_TREE_KEY_DOWN, this);
+ keyEvent.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN, wParam, lParam);
+
+ bool processed = HandleTreeEvent(keyEvent);
+
+ // generate a separate event for Space/Return
+ if ( !wxIsCtrlDown() && !wxIsShiftDown() && !wxIsAltDown() &&
+ ((wParam == VK_SPACE) || (wParam == VK_RETURN)) )
+ {
+ const HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ if ( htSel )
+ {
+ wxTreeEvent activatedEvent(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
+ this, htSel);
+ (void)HandleTreeEvent(activatedEvent);
+ }
+ }
+
+ return processed;
+}
+
+// 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
+WXLRESULT
+wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+ bool processed = false;
+ WXLRESULT rc = 0;
+ bool isMultiple = HasFlag(wxTR_MULTIPLE);
+
+ if ( nMsg == WM_CONTEXTMENU )
+ {
+ int x = GET_X_LPARAM(lParam),
+ y = GET_Y_LPARAM(lParam);
+
+ // the item for which the menu should be shown
+ wxTreeItemId item;
+
+ // the position where the menu should be shown in client coordinates
+ // (so that it can be passed directly to PopupMenu())
+ wxPoint pt;
+
+ if ( x == -1 || y == -1 )
+ {
+ // this means that the event was generated from keyboard (e.g. with
+ // Shift-F10 or special Windows menu key)
+ //
+ // use the Explorer standard of putting the menu at the left edge
+ // of the text, in the vertical middle of the text
+ item = wxTreeItemId(TreeView_GetSelection(GetHwnd()));
+ if ( item.IsOk() )
+ {
+ // Use the bounding rectangle of only the text part
+ wxRect rect;
+ GetBoundingRect(item, rect, true);
+ pt = wxPoint(rect.GetX(), rect.GetY() + rect.GetHeight() / 2);
+ }
+ }
+ else // event from mouse, use mouse position
+ {
+ pt = ScreenToClient(wxPoint(x, y));
+
+ TV_HITTESTINFO tvhti;
+ tvhti.pt.x = pt.x;
+ tvhti.pt.y = pt.y;
+
+ if ( TreeView_HitTest(GetHwnd(), &tvhti) )
+ item = wxTreeItemId(tvhti.hItem);
+ }
+
+ // create the event
+ if ( item.IsOk() )
+ {
+ wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_MENU, this, item);
+
+ event.m_pointDrag = pt;
+
+ if ( HandleTreeEvent(event) )
+ processed = true;
+ //else: continue with generating wxEVT_CONTEXT_MENU in base class code
+ }
+ }
+ else 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);
+
+ TV_HITTESTINFO tvht;
+ tvht.pt.x = x;
+ tvht.pt.y = y;
+
+ HTREEITEM htOldItem = TreeView_GetSelection(GetHwnd());
+ HTREEITEM htItem = TreeView_HitTest(GetHwnd(), &tvht);
+
+ switch ( nMsg )
+ {
+ case WM_LBUTTONDOWN:
+ if ( !isMultiple )
+ break;
+
+ m_htClickedItem.Unset();
+
+ if ( !MSWIsOnItem(tvht.flags) )
+ {
+ if ( tvht.flags & TVHT_ONITEMBUTTON )
+ {
+ // either it's going to be handled by user code or
+ // we're going to use it ourselves to toggle the
+ // branch, in either case don't pass it to the base
+ // class which would generate another mouse click event
+ // for it even though it's already handled here
+ processed = true;
+ SetFocus();
+
+ if ( !HandleMouseEvent(nMsg, x, y, wParam) )
+ {
+ if ( !IsExpanded(htItem) )
+ {
+ Expand(htItem);
+ }
+ else
+ {
+ Collapse(htItem);
+ }
+ }
+ }
+
+ m_focusLost = false;
+ break;
+ }
+
+ processed = true;
+ SetFocus();
+ m_htClickedItem = (WXHTREEITEM) htItem;
+ m_ptClick = wxPoint(x, y);
+
+ if ( wParam & MK_CONTROL )
+ {
+ if ( HandleMouseEvent(nMsg, x, y, wParam) )
+ {
+ m_htClickedItem.Unset();
+ break;
+ }
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ // toggle selected state
+ DoToggleItemSelection(wxTreeItemId(htItem));
+
+ SetFocusedItem(wxTreeItemId(htItem));
+
+ // reset on any click without Shift
+ m_htSelStart.Unset();
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else if ( wParam & MK_SHIFT )
+ {
+ if ( HandleMouseEvent(nMsg, x, y, wParam) )
+ {
+ m_htClickedItem.Unset();
+ break;
+ }
+
+ int srFlags = 0;
+ bool willChange = true;
+
+ if ( !(wParam & MK_CONTROL) )
+ {
+ srFlags |= SR_UNSELECT_OTHERS;
+ }
+
+ if ( !m_htSelStart )
+ {
+ // take the focused item
+ m_htSelStart = htOldItem;
+ }
+ else
+ {
+ willChange = SelectRange(GetHwnd(), HITEM(m_htSelStart),
+ htItem, srFlags | SR_SIMULATE);
+ }
+
+ if ( willChange )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ // this selects all items between the starting one
+ // and the current
+ if ( m_htSelStart )
+ {
+ SelectRange(GetHwnd(), HITEM(m_htSelStart),
+ htItem, srFlags);
+ }
+ else
+ {
+ DoSelectItem(wxTreeItemId(htItem));
+ }
+
+ SetFocusedItem(wxTreeItemId(htItem));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ else // normal click
+ {
+ // avoid doing anything if we click on the only
+ // currently selected item
+
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ if ( count == 0 ||
+ count > 1 ||
+ HITEM(selections[0]) != htItem )
+ {
+ if ( HandleMouseEvent(nMsg, x, y, wParam) )
+ {
+ m_htClickedItem.Unset();
+ break;
+ }
+
+ // clear the previously selected items, if the user
+ // clicked outside of the present selection, otherwise,
+ // perform the deselection on mouse-up, this allows
+ // multiple drag and drop to work.
+ if ( !IsItemSelected(GetHwnd(), htItem))
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(wxTreeItemId(htItem));
+ SetFocusedItem(wxTreeItemId(htItem));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else
+ {
+ SetFocusedItem(wxTreeItemId(htItem));
+ m_mouseUpDeselect = true;
+ }
+ }
+ else // click on a single selected item
+ {
+ // don't interfere with the default processing in
+ // WM_MOUSEMOVE handler below as the default window
+ // proc will start the drag itself if we let have
+ // WM_LBUTTONDOWN
+ m_htClickedItem.Unset();
+
+ // prevent in-place editing from starting if focus lost
+ // since previous click
+ if ( m_focusLost )
+ {
+ ClearFocusedItem();
+ DoSelectItem(wxTreeItemId(htItem));
+ SetFocusedItem(wxTreeItemId(htItem));
+ }
+ else
+ {
+ processed = false;
+ }
+ }
+
+ // reset on any click without Shift
+ m_htSelStart.Unset();
+ }
+
+ m_focusLost = false;
+
+ // we consumed the event so we need to trigger state image
+ // click if needed
+ if ( processed )
+ {
+ if ( tvht.flags & TVHT_ONITEMSTATEICON )
+ {
+ m_triggerStateImageClick = true;
+ }
+ }
+ break;
+
+ case WM_RBUTTONDOWN:
+ if ( !isMultiple )
+ break;
+
+ processed = true;
+ SetFocus();
+
+ if ( HandleMouseEvent(nMsg, x, y, wParam) || !htItem )
+ {
+ break;
+ }
+
+ // default handler removes the highlight from the currently
+ // focused item when right mouse button is pressed on another
+ // one but keeps the remaining items highlighted, which is
+ // confusing, so override this default behaviour
+ if ( !IsItemSelected(GetHwnd(), htItem) )
+ {
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(wxTreeItemId(htItem));
+ SetFocusedItem(wxTreeItemId(htItem));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+
+ break;
+
+ case WM_MOUSEMOVE:
+#ifndef __WXWINCE__
+ if ( m_htClickedItem )
+ {
+ int cx = abs(m_ptClick.x - x);
+ int cy = abs(m_ptClick.y - y);
+
+ if ( cx > ::GetSystemMetrics(SM_CXDRAG) ||
+ cy > ::GetSystemMetrics(SM_CYDRAG) )
+ {
+ NM_TREEVIEW tv;
+ wxZeroMemory(tv);
+
+ tv.hdr.hwndFrom = GetHwnd();
+ tv.hdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID);
+ tv.hdr.code = TVN_BEGINDRAG;
+
+ tv.itemNew.hItem = HITEM(m_htClickedItem);
+
+
+ TVITEM tviAux;
+ wxZeroMemory(tviAux);
+
+ tviAux.hItem = HITEM(m_htClickedItem);
+ tviAux.mask = TVIF_STATE | TVIF_PARAM;
+ tviAux.stateMask = 0xffffffff;
+ TreeView_GetItem(GetHwnd(), &tviAux);
+
+ tv.itemNew.state = tviAux.state;
+ tv.itemNew.lParam = tviAux.lParam;
+
+ tv.ptDrag.x = x;
+ tv.ptDrag.y = y;
+
+ // do it before SendMessage() call below to avoid
+ // reentrancies here if there is another WM_MOUSEMOVE
+ // in the queue already
+ m_htClickedItem.Unset();
+
+ ::SendMessage(GetHwndOf(GetParent()), WM_NOTIFY,
+ tv.hdr.idFrom, (LPARAM)&tv );
+
+ // don't pass it to the default window proc, it would
+ // start dragging again
+ processed = true;
+ }
+ }
+#endif // __WXWINCE__
+
+#if wxUSE_DRAGIMAGE
+ 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();
+ }
+ }
+#endif // wxUSE_DRAGIMAGE
+ break;
+
+ case WM_LBUTTONUP:
+ if ( isMultiple )
+ {
+ // deselect other items if needed
+ if ( htItem )
+ {
+ if ( m_mouseUpDeselect )
+ {
+ m_mouseUpDeselect = false;
+
+ wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(wxTreeItemId(htItem));
+ SetFocusedItem(wxTreeItemId(htItem));
+
+ wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+
+ m_htClickedItem.Unset();
+
+ if ( m_triggerStateImageClick )
+ {
+ if ( tvht.flags & TVHT_ONITEMSTATEICON )
+ {
+ wxTreeEvent event(wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK,
+ this, htItem);
+ (void)HandleTreeEvent(event);
+
+ m_triggerStateImageClick = false;
+ processed = true;
+ }
+ }
+
+ if ( !m_dragStarted && MSWIsOnItem(tvht.flags) )
+ {
+ processed = true;
+ }
+ }
+
+ // fall through
+
+ case WM_RBUTTONUP:
+#if wxUSE_DRAGIMAGE
+ if ( m_dragImage )
+ {
+ m_dragImage->EndDrag();
+ wxDELETE(m_dragImage);
+
+ // generate the drag end event
+ wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG,
+ this, htItem);
+ event.m_pointDrag = wxPoint(x, y);
+ (void)HandleTreeEvent(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);
+ }
+#endif // wxUSE_DRAGIMAGE
+
+ if ( isMultiple && nMsg == WM_RBUTTONUP )
+ {
+ // send NM_RCLICK
+ NMHDR nmhdr;
+ nmhdr.hwndFrom = GetHwnd();
+ nmhdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID);
+ nmhdr.code = NM_RCLICK;
+ ::SendMessage(::GetParent(GetHwnd()), WM_NOTIFY,
+ nmhdr.idFrom, (LPARAM)&nmhdr);
+ processed = true;
+ }
+
+ m_dragStarted = false;
+
+ break;
+ }
+ }
+ else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) )
+ {
+ if ( 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);
+ TVGetItemRectParam param;
+
+ for ( size_t n = 0; n < count; n++ )
+ {
+ // TreeView_GetItemRect() will return false if item is not
+ // visible, which may happen perfectly well
+ if ( wxTreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
+ param, TRUE) )
+ {
+ ::InvalidateRect(GetHwnd(), ¶m.rect, FALSE);
+ }
+ }
+ }
+
+ if ( nMsg == WM_KILLFOCUS )
+ {
+ m_focusLost = true;
+ }
+ }
+ else if ( (nMsg == WM_KEYDOWN || nMsg == WM_SYSKEYDOWN) && isMultiple )
+ {
+ // normally we want to generate wxEVT_KEY_DOWN events from TVN_KEYDOWN
+ // notification but for the keys which can be used to change selection
+ // we need to do it from here so as to not apply the default behaviour
+ // if the events are handled by the user code
+ switch ( wParam )
+ {
+ case VK_RETURN:
+ case VK_SPACE:
+ case VK_UP:
+ case VK_DOWN:
+ case VK_LEFT:
+ case VK_RIGHT:
+ case VK_HOME:
+ case VK_END:
+ case VK_PRIOR:
+ case VK_NEXT:
+ if ( !HandleKeyDown(wParam, lParam) &&
+ !MSWHandleTreeKeyDownEvent(wParam, lParam) )
+ {
+ // use the key to update the selection if it was left
+ // unprocessed
+ MSWHandleSelectionKey(wParam);
+ }
+
+ // pretend that we did process it in any case as we already
+ // generated an event for it
+ processed = true;
+
+ //default: for all the other keys leave processed as false so that
+ // the tree control generates a TVN_KEYDOWN for us
+ }
+
+ }
+ else if ( nMsg == WM_COMMAND )
+ {
+ // if we receive a EN_KILLFOCUS command from the in-place edit control
+ // used for label editing, make sure to end editing
+ WORD id, cmd;
+ WXHWND hwnd;
+ UnpackCommand(wParam, lParam, &id, &hwnd, &cmd);
+
+ if ( cmd == EN_KILLFOCUS )
+ {
+ if ( m_textCtrl && m_textCtrl->GetHandle() == hwnd )
+ {
+ DoEndEditLabel();
+
+ processed = true;
+ }
+ }
+ }
+
+ if ( !processed )
+ rc = wxControl::MSWWindowProc(nMsg, wParam, lParam);
+
+ return rc;
+}
+
+WXLRESULT
+wxTreeCtrl::MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+ if ( nMsg == WM_CHAR )
+ {
+ // don't let the control process Space and Return keys because it
+ // doesn't do anything useful with them anyhow but always beeps
+ // annoyingly when it receives them and there is no way to turn it off
+ // simply if you just process TREEITEM_ACTIVATED event to which Space
+ // and Enter presses are mapped in your code
+ if ( wParam == VK_SPACE || wParam == VK_RETURN )
+ return 0;
+ }
+#if wxUSE_DRAGIMAGE
+ else if ( nMsg == WM_KEYDOWN )
+ {
+ if ( wParam == VK_ESCAPE )
+ {
+ if ( m_dragImage )
+ {
+ m_dragImage->EndDrag();
+ wxDELETE(m_dragImage);
+
+ // 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);
+ }
+ }
+ }
+#endif // wxUSE_DRAGIMAGE
+
+ return wxControl::MSWDefWindowProc(nMsg, wParam, lParam);
+}
+
+// process WM_NOTIFY Windows message
+bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
+{
+ wxTreeEvent event(wxEVT_NULL, this);
+ 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 = 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;
+
+ // although the user event handler may still veto it, it is
+ // important to set it now so that calls to SetItemText() from
+ // the event handler would change the text controls contents
+ m_idEdited =
+ event.m_item = info->item.hItem;
+ event.m_label = info->item.pszText;
+ event.m_editCancelled = false;
+ }
+ break;
+
+ case TVN_DELETEITEM:
+ {
+ eventType = wxEVT_COMMAND_TREE_DELETE_ITEM;
+ NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
+
+ event.m_item = tv->itemOld.hItem;
+
+ if ( m_hasAnyAttr )
+ {
+ wxMapTreeAttr::iterator it = m_attrs.find(tv->itemOld.hItem);
+ if ( it != m_attrs.end() )
+ {
+ delete it->second;
+ m_attrs.erase(it);
+ }
+ }
+ }
+ break;
+
+ case TVN_ENDLABELEDIT:
+ {
+ eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT;
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+
+ event.m_item = info->item.hItem;
+ event.m_label = info->item.pszText;
+ event.m_editCancelled = info->item.pszText == NULL;
+ break;
+ }
+
+#ifndef __WXWINCE__
+ // These *must* not be removed or TVN_GETINFOTIP will
+ // not be processed each time the mouse is moved
+ // and the tooltip will only ever update once.
+ case TTN_NEEDTEXTA:
+ case TTN_NEEDTEXTW:
+ {
+ *result = 0;
+
+ break;
+ }
+
+#ifdef TVN_GETINFOTIP
+ case TVN_GETINFOTIP:
+ {
+ eventType = wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP;
+ NMTVGETINFOTIP *info = (NMTVGETINFOTIP*)lParam;
+
+ // Which item are we trying to get a tooltip for?
+ event.m_item = info->hItem;
+
+ break;
+ }
+#endif // TVN_GETINFOTIP
+#endif // !__WXWINCE__
+
+ 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 = 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 = hdr->code == TVN_ITEMEXPANDING ? IDX_DOING
+ : IDX_DONE;
+
+ eventType = gs_expandEvents[what][how];
+
+ event.m_item = tv->itemNew.hItem;
+ }
+ break;
+
+ case TVN_KEYDOWN:
+ {
+ TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
+
+ // fabricate the lParam and wParam parameters sufficiently
+ // similar to the ones from a "real" WM_KEYDOWN so that
+ // CreateKeyEvent() works correctly
+ return MSWHandleTreeKeyDownEvent(
+ info->wVKey, (wxIsAltDown() ? KF_ALTDOWN : 0) << 16);
+ }
+
+
+ // Vista's tree control has introduced some problems with our
+ // multi-selection tree. When TreeView_SelectItem() is called,
+ // the wrong items are deselected.
+
+ // Fortunately, Vista provides a new notification, TVN_ITEMCHANGING
+ // that can be used to regulate this incorrect behaviour. The
+ // following messages will allow only the unlocked item's selection
+ // state to change
+
+ case TVN_ITEMCHANGINGA:
+ case TVN_ITEMCHANGINGW:
+ {
+ // we only need to handles these in multi-select trees
+ if ( HasFlag(wxTR_MULTIPLE) )
+ {
+ // get info about the item about to be changed
+ NMTVITEMCHANGE* info = (NMTVITEMCHANGE*)lParam;
+ if (TreeItemUnlocker::IsLocked(info->hItem))
+ {
+ // item's state is locked, don't allow the change
+ // returning 1 will disallow the change
+ *result = 1;
+ return true;
+ }
+ }
+
+ // allow the state change
+ }
+ return false;
+
+ // NB: MSLU is broken and sends TVN_SELCHANGEDA instead of
+ // TVN_SELCHANGEDW in Unicode mode under Win98. Therefore
+ // we have to handle both messages:
+ case TVN_SELCHANGEDA:
+ case TVN_SELCHANGEDW:
+ if ( !m_changingSelection )
+ {
+ eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
+ }
+ // fall through
+
+ case TVN_SELCHANGINGA:
+ case TVN_SELCHANGINGW:
+ if ( !m_changingSelection )
+ {
+ if ( eventType == wxEVT_NULL )
+ eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
+ //else: already set above
+
+ if (hdr->code == TVN_SELCHANGINGW ||
+ hdr->code == TVN_SELCHANGEDW)
+ {
+ NM_TREEVIEWW *tv = (NM_TREEVIEWW *)lParam;
+ event.m_item = tv->itemNew.hItem;
+ event.m_itemOld = tv->itemOld.hItem;
+ }
+ else
+ {
+ NM_TREEVIEWA *tv = (NM_TREEVIEWA *)lParam;
+ event.m_item = tv->itemNew.hItem;
+ event.m_itemOld = tv->itemOld.hItem;
+ }
+ }
+
+ // we receive this message from WM_LBUTTONDOWN handler inside
+ // comctl32.dll and so before the click is passed to
+ // DefWindowProc() which sets the focus to the window which was
+ // clicked and this can lead to unexpected event sequences: for
+ // example, we may get a "selection change" event from the tree
+ // before getting a "kill focus" event for the text control which
+ // had the focus previously, thus breaking user code doing input
+ // validation
+ //
+ // to avoid such surprises, we force the generation of focus events
+ // now, before we generate the selection change ones
+ if ( !m_changingSelection && !m_isBeingDeleted )
+ SetFocus();
+ break;
+
+ // instead of explicitly checking for _WIN32_IE, check if the
+ // required symbols are available in the headers
+#if defined(CDDS_PREPAINT)
+ 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;
+
+ // windows in TreeCtrl use one-based index for item state images,
+ // 0 indexed image is not being used, we're using zero-based index,
+ // so we have to add temp image (of zero index) to state image list
+ // before we draw any item, then after items are drawn we have to
+ // delete it (in POSTPAINT notify)
+ if (m_imageListState && m_imageListState->GetImageCount() > 0)
+ {
+ typedef BOOL (wxSTDCALL *ImageList_Copy_t)
+ (HIMAGELIST, int, HIMAGELIST, int, UINT);
+ static ImageList_Copy_t s_pfnImageList_Copy = NULL;
+ static bool loaded = false;
+
+ if ( !loaded )
+ {
+ wxLoadedDLL dllComCtl32(wxT("comctl32.dll"));
+ if ( dllComCtl32.IsLoaded() )
+ {
+ wxDL_INIT_FUNC(s_pfn, ImageList_Copy, dllComCtl32);
+ loaded = true;
+ }
+ }
+
+ if ( !s_pfnImageList_Copy )
+ {
+ // this code is broken with ImageList_Copy()
+ // but I don't care enough about Win95 support
+ // to write it now -- if anybody does, please
+ // do it
+ wxFAIL_MSG("TODO: implement this for Win95");
+ break;
+ }
+
+ const HIMAGELIST
+ hImageList = GetHimagelistOf(m_imageListState);
+
+ // add temporary image
+ int width, height;
+ m_imageListState->GetSize(0, width, height);
+
+ HBITMAP hbmpTemp = ::CreateBitmap(width, height, 1, 1, NULL);
+ int index = ::ImageList_Add(hImageList, hbmpTemp, hbmpTemp);
+ ::DeleteObject(hbmpTemp);
+
+ if ( index != -1 )
+ {
+ // move images to right
+ for ( int i = index; i > 0; i-- )
+ {
+ (*s_pfnImageList_Copy)(hImageList, i,
+ hImageList, i-1,
+ ILCF_MOVE);
+ }
+
+ // we must remove the image in POSTPAINT notify
+ *result |= CDRF_NOTIFYPOSTPAINT;
+ }
+ }
+ break;
+
+ case CDDS_POSTPAINT:
+ // we are deleting temp image of 0 index, which was
+ // added before items were drawn (in PREPAINT notify)
+ if (m_imageListState && m_imageListState->GetImageCount() > 0)
+ m_imageListState->Remove(0);
+ break;
+
+ case CDDS_ITEMPREPAINT:
+ {
+ wxMapTreeAttr::iterator
+ it = m_attrs.find((void *)nmcd.dwItemSpec);
+
+ if ( it == m_attrs.end() )
+ {
+ // nothing to do for this item
+ *result = CDRF_DODEFAULT;
+ break;
+ }
+
+ wxTreeItemAttr * const attr = it->second;
+
+ wxTreeViewItem tvItem((void *)nmcd.dwItemSpec,
+ TVIF_STATE, TVIS_DROPHILITED);
+ DoGetItem(&tvItem);
+ const UINT tvItemState = tvItem.state;
+
+ // selection colours should override ours,
+ // otherwise it is too confusing to the user
+ if ( !(nmcd.uItemState & CDIS_SELECTED) &&
+ !(tvItemState & TVIS_DROPHILITED) )
+ {
+ wxColour colBack;
+ if ( attr->HasBackgroundColour() )
+ {
+ colBack = attr->GetBackgroundColour();
+ lptvcd->clrTextBk = wxColourToRGB(colBack);
+ }
+ }
+
+ // but we still want to keep the special foreground
+ // colour when we don't have focus (we can't keep
+ // it when we do, it would usually be unreadable on
+ // the almost inverted bg colour...)
+ if ( ( !(nmcd.uItemState & CDIS_SELECTED) ||
+ FindFocus() != this ) &&
+ !(tvItemState & TVIS_DROPHILITED) )
+ {
+ wxColour colText;
+ if ( attr->HasTextColour() )
+ {
+ colText = attr->GetTextColour();
+ lptvcd->clrText = wxColourToRGB(colText);
+ }
+ }
+
+ if ( attr->HasFont() )
+ {
+ HFONT hFont = GetHfontOf(attr->GetFont());
+
+ ::SelectObject(nmcd.hdc, hFont);
+
+ *result = CDRF_NEWFONT;
+ }
+ else // no specific font
+ {
+ *result = CDRF_DODEFAULT;
+ }
+ }
+ break;
+
+ default:
+ *result = CDRF_DODEFAULT;
+ }
+ }
+
+ // we always process it
+ return true;
+#endif // have owner drawn support in headers
+
+ case NM_CLICK:
+ {
+ DWORD pos = GetMessagePos();
+ POINT point;
+ point.x = LOWORD(pos);
+ point.y = HIWORD(pos);
+ ::MapWindowPoints(HWND_DESKTOP, GetHwnd(), &point, 1);
+ int htFlags = 0;
+ wxTreeItemId item = HitTest(wxPoint(point.x, point.y), htFlags);
+
+ if ( htFlags & wxTREE_HITTEST_ONITEMSTATEICON )
+ {
+ event.m_item = item;
+ eventType = wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK;
+ }
+
+ break;
+ }
+
+ case NM_DBLCLK:
+ case NM_RCLICK:
+ {
+ TV_HITTESTINFO tvhti;
+ wxGetCursorPosMSW(&tvhti.pt);
+ ::ScreenToClient(GetHwnd(), &tvhti.pt);
+ if ( TreeView_HitTest(GetHwnd(), &tvhti) )
+ {
+ if ( MSWIsOnItem(tvhti.flags) )
+ {
+ event.m_item = 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.SetEventType(eventType);
+
+ bool processed = HandleTreeEvent(event);
+
+ // post processing
+ switch ( hdr->code )
+ {
+ case NM_DBLCLK:
+ // we translate NM_DBLCLK into ACTIVATED event and if the user
+ // handled the activation of the item we shouldn't proceed with
+ // also using the same double click for toggling the item expanded
+ // state -- but OTOH do let the user to expand/collapse the item by
+ // double clicking on it if the activation is not handled specially
+ *result = processed;
+ break;
+
+ case NM_RCLICK:
+ // prevent tree control from sending WM_CONTEXTMENU to our parent
+ // (which it does if NM_RCLICK is not handled) because we want to
+ // send it to the control itself
+ *result =
+ processed = true;
+
+ ::SendMessage(GetHwnd(), WM_CONTEXTMENU,
+ (WPARAM)GetHwnd(), ::GetMessagePos());
+ break;
+
+ case TVN_BEGINDRAG:
+ case TVN_BEGINRDRAG:
+#if wxUSE_DRAGIMAGE
+ if ( event.IsAllowed() )
+ {
+ // normally this is impossible because the m_dragImage is
+ // deleted once the drag operation is over
+ wxASSERT_MSG( !m_dragImage, wxT("starting to drag once again?") );
+
+ m_dragImage = new wxDragImage(*this, event.m_item);
+ m_dragImage->BeginDrag(wxPoint(0,0), this);
+ m_dragImage->Show();
+
+ m_dragStarted = true;
+ }
+#endif // wxUSE_DRAGIMAGE
+ break;
+
+ case TVN_DELETEITEM:
+ {
+ // NB: we might process this message using wxWidgets 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;
+
+ wxTreeItemParam *param =
+ (wxTreeItemParam *)tv->itemOld.lParam;
+ delete param;
+
+ 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 )
+ {
+ // 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() )
+ 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);
+ }
+ }
+ else // we had set m_idEdited before
+ {
+ m_idEdited.Unset();
+ }
+ 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;
+
+#ifndef __WXWINCE__
+#ifdef TVN_GETINFOTIP
+ case TVN_GETINFOTIP:
+ {
+ // If the user permitted a tooltip change, change it
+ if (event.IsAllowed())
+ {
+ SetToolTip(event.m_label);
+ }
+ }
+ break;
+#endif
+#endif
+
+ case TVN_SELCHANGING:
+ case TVN_ITEMEXPANDING:
+ // return true to prevent the action from happening
+ *result = !event.IsAllowed();
+ break;
+
+ case TVN_ITEMEXPANDED:
+ {
+ NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
+ const wxTreeItemId id(tv->itemNew.hItem);
+
+ if ( tv->action == TVE_COLLAPSE )
+ {
+ if ( wxApp::GetComCtl32Version() >= 600 )
+ {
+ // for some reason the item selection rectangle depends
+ // on whether it is expanded or collapsed (at least
+ // with comctl32.dll v6): it is wider (by 3 pixels) in
+ // the expanded state, so when the item collapses and
+ // then is deselected the rightmost 3 pixels of the
+ // previously drawn selection are left on the screen
+ //
+ // it's not clear if it's a bug in comctl32.dll or in
+ // our code (because it does not happen in Explorer but
+ // OTOH we don't do anything which could result in this
+ // AFAICS) but we do need to work around it to avoid
+ // ugly artifacts
+ RefreshItem(id);
+ }
+ }
+ else // expand
+ {
+ // the item is also not refreshed properly after expansion when
+ // it has an image depending on the expanded/collapsed state:
+ // again, it's not clear if the bug is in comctl32.dll or our
+ // code...
+ 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 && */ )
+ {
+ wxTreeItemId item = event.m_item;
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+
+ const wxTreeItemParam * const param = GetItemParam(item);
+ if ( !param )
+ break;
+
+ if ( info->item.mask & TVIF_IMAGE )
+ {
+ info->item.iImage =
+ param->GetImage
+ (
+ IsExpanded(item) ? wxTreeItemIcon_Expanded
+ : wxTreeItemIcon_Normal
+ );
+ }
+ if ( info->item.mask & TVIF_SELECTEDIMAGE )
+ {
+ info->item.iSelectedImage =
+ param->GetImage
+ (
+ 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;
+}
+
+// ----------------------------------------------------------------------------
+// State control.
+// ----------------------------------------------------------------------------
+
+// why do they define INDEXTOSTATEIMAGEMASK but not the inverse?
+#define STATEIMAGEMASKTOINDEX(state) (((state) & TVIS_STATEIMAGEMASK) >> 12)
+
+int wxTreeCtrl::DoGetItemState(const wxTreeItemId& item) const
+{
+ wxCHECK_MSG( item.IsOk(), wxTREE_ITEMSTATE_NONE, wxT("invalid tree item") );
+
+ // receive the desired information
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
+ DoGetItem(&tvItem);
+
+ // state images are one-based
+ return STATEIMAGEMASKTOINDEX(tvItem.state) - 1;
+}
+
+void wxTreeCtrl::DoSetItemState(const wxTreeItemId& item, int state)
+{
+ wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
+
+ // state images are one-based
+ // 0 if no state image display (wxTREE_ITEMSTATE_NONE = -1)
+ tvItem.state = INDEXTOSTATEIMAGEMASK(state + 1);
+
+ DoSetItem(&tvItem);
+}
+
+// ----------------------------------------------------------------------------
+// Update locking.
+// ----------------------------------------------------------------------------
+
+// Using WM_SETREDRAW with the native control is a bad idea as it's broken in
+// some Windows versions (see http://support.microsoft.com/kb/130611) and
+// doesn't seem to do anything in other ones (e.g. under Windows 7 the tree
+// control keeps updating its scrollbars while the items are added to it,
+// resulting in horrible flicker when adding even a couple of dozen items).
+// So we hide it instead of freezing -- this still flickers, but actually not
+// as badly as it would if we didn't do it.
+
+void wxTreeCtrl::DoFreeze()
+{
+ // Notice that we don't call wxWindow::Hide() here as we want the window to
+ // remain shown from wxWidgets point of view and also because
+ // wxWindowMSW::Show() calls Do{Freeze,Thaw}() itself, so we'd get into
+ // infinite recursion this way.
+ if ( IsShown() )
+ ::ShowWindow(GetHwnd(), SW_HIDE);
+}
+
+void wxTreeCtrl::DoThaw()
+{
+ if ( IsShown() )
+ ::ShowWindow(GetHwnd(), SW_SHOW);
+}
projects / wxWidgets.git / blobdiff