diff options
Diffstat (limited to 'indra/llui/llfolderviewitem.cpp')
| -rw-r--r-- | indra/llui/llfolderviewitem.cpp | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/indra/llui/llfolderviewitem.cpp b/indra/llui/llfolderviewitem.cpp index 747b472ac2..a369edbc6b 100644 --- a/indra/llui/llfolderviewitem.cpp +++ b/indra/llui/llfolderviewitem.cpp @@ -1461,31 +1461,37 @@ void LLFolderViewFolder::extendSelectionTo(LLFolderViewItem* new_selection) LLFolderView* root = getRoot(); - for (std::vector<LLFolderViewItem*>::iterator it = items_to_select_forward.begin(), end_it = items_to_select_forward.end(); + BOOL selection_reverse = new_selection->isSelected(); //indication that some elements are being deselected + + // array always go from 'will be selected' to ' will be unselected', iterate + // in opposite direction to simplify identification of 'point of origin' in + // case it is in the list we are working with + for (std::vector<LLFolderViewItem*>::reverse_iterator it = items_to_select_forward.rbegin(), end_it = items_to_select_forward.rend(); it != end_it; ++it) { LLFolderViewItem* item = *it; - if (item->isSelected()) + BOOL selected = item->isSelected(); + if (!selection_reverse && selected) { - root->removeFromSelectionList(item); + // it is our 'point of origin' where we shift/expand from + // don't deselect it + selection_reverse = TRUE; } else { - item->selectItem(); + root->changeSelection(item, !selected); } - root->addToSelectionList(item); } - if (new_selection->isSelected()) + if (selection_reverse) { - root->removeFromSelectionList(new_selection); + // at some point we reversed selection, first element should be deselected + root->changeSelection(last_selected_item_from_cur, FALSE); } - else - { - new_selection->selectItem(); - } - root->addToSelectionList(new_selection); + + // element we expand to should always be selected + root->changeSelection(new_selection, TRUE); } |