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Implements double click event on items, allowing to block the category expansion change.

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This commit is contained in:
Leonardo Backes Vargas
2015-12-24 20:25:50 -02:00
parent 13669f7591
commit 3f1991ba1a
2 changed files with 52 additions and 17 deletions
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48
source/gui/widgets/listbox.cpp
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@@ -3545,7 +3545,7 @@ namespace nana
}
}
void trigger::dbl_click(graph_reference graph, const arg_mouse&)
void trigger::dbl_click(graph_reference graph, const arg_mouse& arg)
{
if (essence_->pointer_where.first == essence_t::parts::header)
if (cursor::size_we == essence_->lister.wd_ptr()->cursor())
@@ -3564,22 +3564,28 @@ namespace nana
//Get the item which the mouse is placed.
if (lister.forward(offset_y, essence_->pointer_where.second, item_pos))
{
drawerbase::listbox::size_type col=essence_->header.item_by_x(arg.pos.x - 2 - essence_->scroll.offset_x);
arg_item ai(item_pos, col==npos?-1:col);
lister.wd_ptr()->events().item_dbl_click.emit(ai);
if (!item_pos.is_category()) //being the npos of item.second is a category
return;
bool do_expand = (lister.expand(item_pos.cat) == false);
lister.expand(item_pos.cat, do_expand);
if(!ai.category_change_blocked()){
bool do_expand = (lister.expand(item_pos.cat) == false);
lister.expand(item_pos.cat, do_expand);
if(false == do_expand)
{
auto last = lister.last();
size_type n = essence_->number_of_lister_items(false);
if (lister.backward(last, n, last))
offset_y = last;
}
essence_->adjust_scroll_life();
refresh(graph);
API::lazy_refresh();
if(false == do_expand)
{
auto last = lister.last();
size_type n = essence_->number_of_lister_items(false);
if (lister.backward(last, n, last))
offset_y = last;
}
essence_->adjust_scroll_life();
refresh(graph);
API::lazy_refresh();
}
}
}
@@ -4285,6 +4291,22 @@ namespace nana
{
}
arg_item::arg_item ( const nana::drawerbase::listbox::index_pair& itm, nana::drawerbase::listbox::size_type column )
: item(itm), column(column), _m_block_change(false)
{
}
void arg_item::block_category_change() const {
_m_block_change=true;
}
bool arg_item::category_change_blocked() const {
return _m_block_change;
}
//class listbox
listbox::listbox(window wd, bool visible)
{