+ item->SetHilight(FALSE);
+ RefreshLine(item);
+
+ if (item->HasChildren())
+ {
+ wxArrayGenericTreeItems& children = item->GetChildren();
+ size_t count = children.Count();
+ for ( size_t n = 0; n < count; ++n )
+ UnselectAllChildren(children[n]);
+ }
+}
+
+void wxTreeCtrl::UnselectAll()
+{
+ UnselectAllChildren(GetRootItem().m_pItem);
+}
+
+// Recursive function !
+// To stop we must have crt_item<last_item
+// Algorithm :
+// Tag all next children, when no more children,
+// Move to parent (not to tag)
+// Keep going... if we found last_item, we stop.
+bool wxTreeCtrl::TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
+{
+ wxGenericTreeItem *parent = crt_item->GetParent();
+
+ if ( parent == NULL ) // This is root item
+ return TagAllChildrenUntilLast(crt_item, last_item, select);
+
+ wxArrayGenericTreeItems& children = parent->GetChildren();
+ int index = children.Index(crt_item);
+ wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
+
+ size_t count = children.Count();
+ for (size_t n=(size_t)(index+1); n<count; ++n)
+ if (TagAllChildrenUntilLast(children[n], last_item, select)) return TRUE;
+
+ return TagNextChildren(parent, last_item, select);
+}
+
+bool wxTreeCtrl::TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
+{
+ crt_item->SetHilight(select);
+ RefreshLine(crt_item);
+
+ if (crt_item==last_item) return TRUE;
+
+ if (crt_item->HasChildren())
+ {
+ wxArrayGenericTreeItems& children = crt_item->GetChildren();
+ size_t count = children.Count();
+ for ( size_t n = 0; n < count; ++n )
+ if (TagAllChildrenUntilLast(children[n], last_item, select)) return TRUE;
+ }
+
+ return FALSE;
+}
+
+void wxTreeCtrl::SelectItemRange(wxGenericTreeItem *item1, wxGenericTreeItem *item2)
+{
+ // item2 is not necessary after item1
+ wxGenericTreeItem *first=NULL, *last=NULL;
+
+ // choice first' and 'last' between item1 and item2
+ if (item1->GetY()<item2->GetY())
+ {
+ first=item1;
+ last=item2;
+ }
+ else
+ {
+ first=item2;
+ last=item1;
+ }
+
+ bool select=m_current->HasHilight();
+
+ if (TagAllChildrenUntilLast(first,last,select)) return;
+
+ TagNextChildren(first,last,select);
+}
+
+void wxTreeCtrl::SelectItem(const wxTreeItemId& itemId,
+ bool unselect_others,
+ bool extended_select)
+{
+ wxCHECK_RET( itemId.IsOk(), _T("invalid tree item") );
+
+ bool is_single=!(GetWindowStyleFlag() & wxTR_MULTIPLE);
+ wxGenericTreeItem *item = itemId.m_pItem;
+
+ //wxCHECK_RET( ( (!unselect_others) && is_single),
+ // _T("this is a single selection tree") );
+
+ // to keep going anyhow !!!
+ if (is_single)
+ {
+ if (item->HasHilight()) return; // nothing to do
+ unselect_others=TRUE;
+ extended_select=FALSE;
+ }
+ else // check if selection will really change
+ if (unselect_others && item->HasHilight())
+ {
+ // selection change if there is more than one item currently selected
+ wxArrayTreeItemIds selected_items;
+ if (GetSelections(selected_items)==1) return;
+ }
projects / wxWidgets.git / blobdiff