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listbox and place code refined

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This commit is contained in:
Jinhao 2016-07-13 23:00:03 +08:00
parent 49dfaca1ef
commit 9b91d3b55f
2 changed files with 34 additions and 64 deletions
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37
source/gui/place.cpp
View File

@ -503,7 +503,7 @@ namespace nana
static event_handle erase_element(std::vector<element_t>& elements, window handle)
{
for (auto i = elements.begin(), end = elements.end(); i != end; ++i)
for (auto i = elements.begin(); i != elements.end(); ++i)
{
if (i->handle == handle)
{
@ -515,26 +515,16 @@ namespace nana
return nullptr;
}
private:
//The defintion is moved after the definition of class division
template<typename Function>
void _m_for_each(division*, Function);
//Listen to destroy of a window
//It will delete the element and recollocate when the window destroyed.
event_handle _m_make_destroy(window wd)
{
return API::events(wd).destroy.connect([this, wd](const arg_destroy&)
{
for (auto i = elements.begin(), end = elements.end(); i != end; ++i)
if (erase_element(elements, wd))
{
if (i->handle == wd)
{
elements.erase(i);
if (!API::is_destroying(API::get_parent_window(wd)))
place_ptr_->collocate();
break;
}
if (!API::is_destroying(API::get_parent_window(wd)))
place_ptr_->collocate();
}
});
}
@ -613,10 +603,7 @@ namespace nana
division(kind k, std::string&& n)
: kind_of_division(k),
name(std::move(n)),
field(nullptr),
div_next(nullptr),
div_owner(nullptr)
name(std::move(n))
{}
virtual ~division()
@ -754,7 +741,6 @@ namespace nana
//Collocate the division and its children divisions,
//The window parameter is specified for the window which the place object binded.
virtual void collocate(window) = 0;
public:
kind kind_of_division;
bool display{ true };
@ -769,18 +755,11 @@ namespace nana
place_parts::margin margin;
place_parts::repeated_array gap;
field_gather * field;
division * div_next, *div_owner;
field_gather * field{ nullptr };
division * div_next{ nullptr };
division * div_owner{ nullptr };
};//end class division
template<typename Function>
void place::implement::field_gather::_m_for_each(division * div, Function fn)
{
for (auto & up : div->children) //The element of children is unique_ptr
fn(up.get());
}
class place::implement::div_arrange
: public division
{

61
source/gui/widgets/listbox.cpp
View File

@ -547,8 +547,6 @@ namespace nana
};
struct essence;
struct item_data
{
using container = std::vector<cell>;
@ -719,7 +717,7 @@ namespace nana
if (allocate_if_empty)
{
std::make_unique<nana::any>().swap(item.anyobj);
item.anyobj.reset(new any);
return item.anyobj.get();
}
}
@ -1044,8 +1042,8 @@ namespace nana
{
auto i = categories_.cbegin();
std::advance(i, pos.cat);
if (i->model_ptr && i->model_ptr->container()->immutable())
throw std::runtime_error("nana::listbox disallow the operation because of immutable modal");
throw_if_immutable_model(i->model_ptr.get());
}
}
@ -1057,8 +1055,7 @@ namespace nana
std::advance(i, pos.cat);
if (i->model_ptr)
{
if (i->model_ptr->container()->immutable())
throw std::runtime_error("nana::listbox disallow to modify the item because of immutable model");
throw_if_immutable_model(i->model_ptr.get());
i->model_ptr->container()->assign(pos.item, cells);
}
@ -1874,7 +1871,7 @@ namespace nana
{
return index_pair{ absolute(first()) };
}
bool good(size_type cat) const
{
return (cat < categories_.size());
@ -1884,6 +1881,7 @@ namespace nana
{
return ((pos.cat < categories_.size()) && (pos.item < size_item(pos.cat)));
}
/// if good return the same item (in arg item), or just the next cat and true, but If fail return false
bool good_item(index_pair pos, index_pair& item) const
{
@ -1951,6 +1949,7 @@ namespace nana
return npos;
}
index_pair relative_pair(const index_pair& pos) const
{
//Returns an empty pos if item is npos
@ -2251,19 +2250,14 @@ namespace nana
adjust_scroll_life(); // call adjust_scroll_value(); //adjust_scroll_value(); // again?
}
void trace_item_abs( index_pair abs_pos )
{
if( abs_pos.item == npos
&& abs_pos.cat == scroll.offset_y_abs.cat
&& scroll.offset_y_abs.item == npos ) // if item==off y and is a cat
return;
trace_item_dpl( lister.relative_pair(abs_pos)) ; // ??? scroll_y_dpl_refresh() ;
}
void trace_last_selected_item( )
{
trace_item_abs(lister.last_selected_abs);
if (lister.last_selected_abs.item == npos &&
lister.last_selected_abs.cat == scroll.offset_y_abs.cat &&
scroll.offset_y_abs.item == npos) // if item==off y and is a cat
return;
trace_item_dpl(lister.relative_pair(lister.last_selected_abs)); // ??? scroll_y_dpl_refresh() ;
}
void update()
@ -3040,7 +3034,7 @@ namespace nana
{
auto& cat = *get(pos.cat);
if ((pos.item != ::nana::npos) && (pos.item >= cat.items.size()))
if ((pos.item != nana::npos) && (pos.item >= cat.items.size()))
throw std::invalid_argument("listbox: invalid pos to scroll");
if (!cat.expand)
@ -3069,12 +3063,12 @@ namespace nana
if (categories_.back().expand)
{
if (categories_.back().items.empty())
last.item = npos;
last.item = nana::npos;
else
last.item = categories_.back().items.size() - 1;
}
else
last.item = ::nana::npos;
last.item = nana::npos;
backward(last, view_items, start_pos);
}
@ -3204,19 +3198,18 @@ namespace nana
std::vector<cell> model_cells;
auto const pcell = (cat.model_ptr ? &model_cells : nullptr);
for (auto i : cat.sorted)
{
auto& item = cat.items[i];
if (item.flags.selected || !exp_opt.only_selected_items)
{
//Test if the category have a model set.
if (cat.model_ptr)
{
if (pcell)
cat.model_ptr->container()->to_cells(i).swap(model_cells);
list_str += (item.to_string(exp_opt, &model_cells) + exp_opt.endl);
}
else
list_str += (item.to_string(exp_opt, nullptr) + exp_opt.endl);
list_str += (item.to_string(exp_opt, pcell) + exp_opt.endl);
}
}
}
@ -3473,15 +3466,16 @@ namespace nana
{
const auto & col = essence_->header.at(essence_->pointer_where.second);
nana::paint::graphics ext_graph({ col.width_px, essence_->scheme_ptr->header_height });
ext_graph.typeface(essence_->graph->typeface());
paint::graphics fl_graph({ col.width_px, essence_->scheme_ptr->header_height });
fl_graph.typeface(essence_->graph->typeface());
int text_top = (essence_->scheme_ptr->header_height - essence_->scheme_ptr->text_height) / 2;
_m_draw_header_item(ext_graph, rectangle{ext_graph.size()}, text_top, colors::white, col, item_state::floated);
_m_draw_header_item(fl_graph, rectangle{ fl_graph.size()}, text_top, colors::white, col, item_state::floated);
auto xpos = essence_->header.position(col.index, nullptr) + pos.x - grabs_.start_pos;
ext_graph.blend(rectangle{ ext_graph.size() }, *(essence_->graph), point{xpos - static_cast<int>(essence_->scroll.x_offset()) + rect.x, rect.y}, 0.5);
fl_graph.blend(rectangle{ fl_graph.size() }, *(essence_->graph), point{xpos - static_cast<int>(essence_->scroll.x_offset()) + rect.x, rect.y}, 0.5);
}
private:
@ -5084,9 +5078,6 @@ namespace nana
API::refresh_window(ess_->listbox_ptr->handle());
}
}
//class cat_proxy
//end class cat_proxy
}
}//end namespace drawerbase