629 lines
15 KiB
C++
629 lines
15 KiB
C++
/*
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* A Menubar implementation
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* Nana C++ Library(http://www.nanapro.org)
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* Copyright(C) 2009-2017 Jinhao(cnjinhao@hotmail.com)
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*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* @file: nana/gui/widgets/menubar.cpp
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*/
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#include <nana/gui/widgets/menubar.hpp>
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#include <stdexcept>
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namespace nana
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{
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class menu_accessor
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{
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public:
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static void popup(menu& m, window wd, int x, int y)
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{
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m._m_popup(wd, { x, y }, true);
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}
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};
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namespace drawerbase
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{
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namespace menubar
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{
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struct item_type
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{
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item_type(const native_string_type text, unsigned long shortkey)
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: text(text), shortkey(shortkey)
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{}
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native_string_type text;
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unsigned long shortkey;
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::nana::menu menu_obj;
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::nana::point pos;
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::nana::size size;
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};
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class trigger::itembase
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{
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public:
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using container = std::vector<item_type*>;
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~itembase()
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{
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for(auto i : cont_)
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delete i;
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}
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void append(const native_string_type& text, unsigned long shortkey)
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{
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if(shortkey && shortkey < 0x61) shortkey += (0x61 - 0x41);
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cont_.emplace_back(new item_type(text, shortkey));
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}
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std::size_t find(unsigned long shortkey) const
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{
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if(shortkey)
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{
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if(shortkey < 0x61) shortkey += (0x61 - 0x41);
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std::size_t index = 0;
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for(auto i : cont_)
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{
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if(i->shortkey == shortkey)
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return index;
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++index;
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}
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}
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return npos;
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}
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const container& cont() const
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{
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return cont_;
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}
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private:
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container cont_;
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};
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//class item_renderer
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item_renderer::item_renderer(window wd, graph_reference graph)
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:graph_(graph), scheme_ptr_(static_cast<scheme*>(API::dev::get_scheme(wd)))
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{}
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void item_renderer::background(const nana::point& pos, const nana::size& size, state item_state)
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{
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auto bground = scheme_ptr_->text_fgcolor;
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::nana::color border, body, corner;
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switch (item_state)
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{
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case state::highlighted:
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border = scheme_ptr_->border_highlight;
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body = scheme_ptr_->body_highlight;
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corner = body.blend(bground, 0.5);
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break;
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case state::selected:
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border = scheme_ptr_->border_selected;
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body = scheme_ptr_->body_selected;
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corner = body.blend(bground, 0.5);
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break;
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default: //Don't process other states.
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return;
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}
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nana::rectangle r(pos, size);
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graph_.rectangle(r, false, border);
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graph_.palette(false, corner);
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paint::draw{ graph_ }.corner(r, 1);
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graph_.rectangle(r.pare_off(1), true, body);
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}
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void item_renderer::caption(const point& pos, const native_string_type& text)
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{
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graph_.string(pos, text, scheme_ptr_->text_fgcolor);
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}
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//end class item_renderer
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//class trigger
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trigger::trigger()
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: widget_(nullptr)
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, graph_(nullptr)
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, items_(new itembase) {}
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trigger::~trigger()
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{
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delete items_;
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}
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nana::menu* trigger::push_back(const std::string& text)
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{
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wchar_t shkey;
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API::transform_shortkey_text(text, shkey, nullptr);
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if(shkey)
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API::register_shortkey(widget_->handle(), shkey);
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auto pos = items_->cont().size();
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items_->append(to_nstring(text), shkey);
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refresh(*graph_);
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API::update_window(*widget_);
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return at(pos);
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}
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nana::menu* trigger::at(std::size_t pos) const
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{
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if (pos < items_->cont().size())
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return &(items_->cont()[pos]->menu_obj);
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return nullptr;
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}
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std::size_t trigger::size() const
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{
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return items_->cont().size();
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}
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void trigger::attached(widget_reference widget, graph_reference graph)
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{
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graph_ = &graph;
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widget_ = &widget;
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}
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void trigger::refresh(graph_reference graph)
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{
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auto bgcolor = API::bgcolor(*widget_);
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graph_->rectangle(true, bgcolor);
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item_renderer ird(*widget_, graph);
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nana::point item_pos(2, 2);
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nana::size item_s(0, 23);
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unsigned long index = 0;
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for (auto i : items_->cont())
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{
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//Transform the text if it contains the hotkey character
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wchar_t hotkey;
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::std::wstring::size_type hotkey_pos;
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auto text = API::transform_shortkey_text(to_utf8(i->text), hotkey, &hotkey_pos);
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nana::size text_s = graph.text_extent_size(text);
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item_s.width = text_s.width + 16;
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i->pos = item_pos;
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i->size = item_s;
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using state = item_renderer::state;
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state item_state = (index != state_.active ? state::normal : (state_.menu_active ? state::selected : state::highlighted));
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ird.background(item_pos, item_s, item_state);
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if (state::selected == item_state)
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{
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int x = item_pos.x + item_s.width;
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int y1 = item_pos.y + 2, y2 = item_pos.y + item_s.height - 1;
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graph.line({ x, y1 }, { x, y2 }, bgcolor.blend(colors::gray_border, 0.6));
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graph.line({ x + 1, y1 }, { x + 1, y2 }, bgcolor.blend(colors::button_face_shadow_end, 0.5));
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}
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//Draw text, the text is transformed from orignal for hotkey character
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int text_top_off = (item_s.height - text_s.height) / 2;
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ird.caption({ item_pos.x + 8, item_pos.y + text_top_off }, to_nstring(text));
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API::dev::draw_shortkey_underline(graph, text, hotkey, hotkey_pos, { item_pos.x + 8, item_pos.y + text_top_off }, ird.scheme_ptr()->text_fgcolor);
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item_pos.x += i->size.width;
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++index;
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}
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}
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void trigger::mouse_move(graph_reference graph, const arg_mouse& arg)
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{
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if (arg.pos != state_.mouse_pos)
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state_.nullify_mouse = false;
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bool popup = false;
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if(state_.behavior == state_type::behavior_focus)
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{
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auto index = _m_item_by_pos(arg.pos);
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if(index != npos && state_.active != index)
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{
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state_.active = index;
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popup = true;
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}
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}
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else
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popup = _m_track_mouse(arg.pos);
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if(popup)
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{
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_m_popup_menu();
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refresh(graph);
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API::dev::lazy_refresh();
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}
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state_.mouse_pos = arg.pos;
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}
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void trigger::mouse_leave(graph_reference graph, const arg_mouse& arg)
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{
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state_.nullify_mouse = false;
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mouse_move(graph, arg);
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}
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void trigger::mouse_down(graph_reference graph, const arg_mouse& arg)
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{
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state_.nullify_mouse = false;
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state_.active = _m_item_by_pos(arg.pos);
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if (npos != state_.active)
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{
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if (!state_.menu_active)
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state_.menu_active = true;
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_m_popup_menu();
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}
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else
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_m_total_close();
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refresh(graph);
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API::dev::lazy_refresh();
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}
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void trigger::mouse_up(graph_reference graph, const arg_mouse&)
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{
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state_.nullify_mouse = false;
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if(state_.behavior != state_.behavior_menu)
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{
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if(state_.menu_active)
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state_.behavior = state_.behavior_menu;
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}
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else
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{
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state_.behavior = state_.behavior_none;
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_m_total_close();
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refresh(graph);
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API::dev::lazy_refresh();
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}
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}
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void trigger::focus(graph_reference graph, const arg_focus& arg)
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{
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if((arg.getting == false) && (state_.active != npos))
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{
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state_.behavior = state_type::behavior_none;
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state_.nullify_mouse = true;
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state_.menu_active = false;
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_m_close_menu();
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state_.active = npos;
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refresh(graph);
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API::dev::lazy_refresh();
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}
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}
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void trigger::key_press(graph_reference graph, const arg_keyboard& arg)
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{
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state_.nullify_mouse = true;
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if(state_.menu)
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{
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switch(arg.key)
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{
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case keyboard::os_arrow_down:
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case keyboard::backspace:
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case keyboard::os_arrow_up:
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state_.menu->goto_next(keyboard::os_arrow_down == arg.key);
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break;
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case keyboard::os_arrow_right:
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if(state_.menu->goto_submen() == false)
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_m_move(false);
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break;
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case keyboard::os_arrow_left:
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if(state_.menu->exit_submenu() == false)
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_m_move(true);
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break;
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case keyboard::escape:
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if(state_.menu->exit_submenu() == false)
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{
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_m_close_menu();
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state_.behavior = state_.behavior_focus;
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state_.menu_active = false;
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}
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break;
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case keyboard::enter:
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state_.menu->pick();
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break;
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default:
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//Katsuhisa Yuasa: menubar key_press improvements
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//send_shortkey has 3 states, 0 = UNKNOWN KEY, 1 = ITEM, 2 = GOTO SUBMENU
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int sk_state = state_.menu->send_shortkey(arg.key);
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switch(sk_state)
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{
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case 0: //UNKNOWN KEY
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break;
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case 1: //ITEM
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if (state_.active != npos)
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{
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_m_total_close();
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if (arg.key == 18) //ALT
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state_.behavior = state_.behavior_focus;
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}
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break;
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case 2: //GOTO SUBMENU
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state_.menu->goto_submen();
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break;
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default: break;
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}
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break;
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}
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}
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else
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{
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switch(arg.key)
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{
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case keyboard::os_arrow_right:
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case keyboard::backspace:
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case keyboard::os_arrow_left:
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_m_move(keyboard::os_arrow_right != arg.key);
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break;
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case keyboard::os_arrow_up:
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case keyboard::os_arrow_down:
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case keyboard::enter:
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state_.menu_active = true;
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if(_m_popup_menu())
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state_.menu->goto_next(true);
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break;
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case keyboard::escape:
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if(state_.behavior == state_.behavior_focus)
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{
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state_.active= npos;
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state_.behavior = state_.behavior_none;
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}
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break;
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default:
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auto index = items_->find(arg.key);
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if(index != npos)
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{
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state_.active = index;
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state_.menu_active = true;
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if(_m_popup_menu())
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state_.menu->goto_next(true);
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}
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break;
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}
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}
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refresh(graph);
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API::dev::lazy_refresh();
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}
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void trigger::key_release(graph_reference graph, const arg_keyboard& arg)
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{
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if(arg.key == 18)
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{
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if(state_.behavior == state_type::behavior_none)
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{
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state_.behavior = state_type::behavior_focus;
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state_.active = 0;
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}
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else
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{
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state_.behavior = state_type::behavior_none;
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auto pos = API::cursor_position();
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API::calc_window_point(widget_->handle(), pos);
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state_.active = _m_item_by_pos(pos);
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}
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state_.menu_active = false;
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refresh(graph);
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API::dev::lazy_refresh();
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}
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}
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void trigger::shortkey(graph_reference graph, const arg_keyboard& arg)
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{
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API::focus_window(widget_->handle());
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auto index = items_->find(arg.key);
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if(index != npos && (index != state_.active || nullptr == state_.menu))
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{
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_m_close_menu();
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state_.menu_active = true;
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state_.nullify_mouse = true;
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state_.active = index;
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if(_m_popup_menu())
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state_.menu->goto_next(true);
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refresh(graph);
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API::dev::lazy_refresh();
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state_.behavior = state_.behavior_menu;
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}
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}
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void trigger::_m_move(bool to_left)
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{
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if(items_->cont().empty()) return;
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const std::size_t last_pos = items_->cont().size() - 1;
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auto index = state_.active;
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if(to_left)
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{
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--index;
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if (index > last_pos)
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index = last_pos;
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}
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else
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{
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++index;
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if(index > last_pos)
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index = 0;
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}
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if(index != state_.active)
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{
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state_.active = index;
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refresh(*graph_);
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API::dev::lazy_refresh();
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if(_m_popup_menu())
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state_.menu->goto_next(true);
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}
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}
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bool trigger::_m_popup_menu()
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{
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auto& items = items_->cont();
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auto pos = state_.active;
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if (pos >= items.size())
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return false;
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if(state_.menu_active && (state_.menu != &(items[pos]->menu_obj)))
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{
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API::dev::delay_restore(true);
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_m_close_menu();
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API::dev::delay_restore(false);
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state_.active = pos;
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auto & m = items[pos];
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state_.menu = &(m->menu_obj);
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state_.menu->destroy_answer([this]
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{
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state_.menu = nullptr;
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if (state_.passive_close)
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{
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_m_total_close();
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refresh(*graph_);
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API::update_window(widget_->handle());
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}
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});
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if (API::focus_window() != this->widget_->handle())
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API::focus_window(widget_->handle());
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menu_accessor::popup(*state_.menu, *widget_, m->pos.x, m->pos.y + static_cast<int>(m->size.height));
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return true;
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}
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return false;
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}
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void trigger::_m_total_close()
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{
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_m_close_menu();
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state_.menu_active = false;
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state_.behavior = state_.behavior_none;
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auto pos = API::cursor_position();
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API::calc_window_point(widget_->handle(), pos);
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state_.active = _m_item_by_pos(pos);
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}
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bool trigger::_m_close_menu()
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{
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if(state_.menu)
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{
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state_.passive_close = false;
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state_.menu->close();
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state_.passive_close = true;
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state_.menu = nullptr;
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return true;
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}
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return false;
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}
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std::size_t trigger::_m_item_by_pos(const ::nana::point& pos)
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{
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if((2 <= pos.x) && (2 <= pos.y) && (pos.y < 25))
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{
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int item_x = 2;
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std::size_t index = 0;
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for(auto i : items_->cont())
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{
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if(item_x <= pos.x && pos.x < item_x + static_cast<int>(i->size.width))
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return index;
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item_x += i->size.width;
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++index;
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}
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}
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return npos;
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}
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bool trigger::_m_track_mouse(const ::nana::point& pos)
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{
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if(state_.nullify_mouse == false)
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{
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auto which = _m_item_by_pos(pos);
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if((which != state_.active) && (which != npos || (false == state_.menu_active)))
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{
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state_.active = which;
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return true;
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}
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}
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return false;
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}
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|
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//struct state_type
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trigger::state_type::state_type()
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: active(npos),
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behavior(behavior_none),
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menu_active(false),
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passive_close(true),
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nullify_mouse(false),
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menu(nullptr)
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{}
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//end struct state_type
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//end class trigger
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}//end namespace menubar
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}//end namespace drawerbase
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//class menubar
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menubar::menubar(window wd)
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{
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create(wd);
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}
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menubar::~menubar()
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{
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API::umake_event(evt_resized_);
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}
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void menubar::create(window wd)
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{
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widget_object<category::widget_tag, drawerbase::menubar::trigger, ::nana::general_events, drawerbase::menubar::scheme>
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::create(wd, rectangle(nana::size(API::window_size(wd).width, 28)));
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API::dev::set_menubar(handle(), true);
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evt_resized_ = API::events(wd).resized.connect([this](const ::nana::arg_resized& arg)
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{
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auto sz = this->size();
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sz.width = arg.width;
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this->size(sz);
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});
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}
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menu& menubar::push_back(const std::string& text)
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{
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return *(get_drawer_trigger().push_back(text));
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}
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menu& menubar::at(std::size_t index) const
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{
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auto p = get_drawer_trigger().at(index);
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if(nullptr == p)
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throw std::out_of_range("menubar::at, out of range");
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return *p;
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}
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std::size_t menubar::length() const
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{
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return get_drawer_trigger().size();
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}
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//end class menubar
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}//end namespace nana
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