1424 lines
35 KiB
C++
1424 lines
35 KiB
C++
/*
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* A Menu 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/menu.cpp
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* @contributors:
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* kmribti(pr#102)
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* dankan1890(pr#158)
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*/
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#include <nana/gui/widgets/menu.hpp>
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#include <nana/gui/timer.hpp>
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#include <nana/system/platform.hpp>
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#include <nana/gui/element.hpp>
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#include <nana/gui/wvl.hpp>
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#include <nana/paint/text_renderer.hpp>
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#include <cctype> //introduces tolower
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#include <vector>
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namespace nana
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{
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namespace drawerbase
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{
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namespace menu
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{
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struct menu_type
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{
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using item_type = menu_item_type;
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using item_container = std::vector<std::unique_ptr<item_type>>;
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using iterator = item_container::iterator;
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::nana::menu* owner;
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std::vector<menu_type*> links;
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item_container items;
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unsigned max_pixels;
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unsigned item_pixels;
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nana::point gaps;
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};
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//A helper function to check the style parameter
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inline bool good_checks(checks s)
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{
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return (checks::none <= s && s <= checks::highlight);
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}
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//struct menu_item_type
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//Default constructor initializes the item as a splitter
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menu_item_type::menu_item_type()
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{
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flags.enabled = true;
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flags.splitter = true;
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flags.checked = false;
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linked.own_creation = false;
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linked.menu_ptr = nullptr;
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}
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menu_item_type::menu_item_type(std::string text, const event_fn_t& fn)
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: text(std::move(text)), event_handler(fn)
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{
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flags.enabled = true;
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flags.splitter = false;
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flags.checked = false;
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linked.own_creation = false;
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linked.menu_ptr = nullptr;
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}
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//end class menu_item_type
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class internal_renderer
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: public renderer_interface
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{
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public:
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internal_renderer()
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: crook_("menu_crook")
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{
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crook_.check(facade<element::crook>::state::checked);
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}
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private:
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//Impelement renderer_interface
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void background(graph_reference graph, window)
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{
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nana::size sz = graph.size();
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sz.width -= 30;
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sz.height -= 2;
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graph.rectangle(false, colors::gray_border);
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graph.rectangle({ 1, 1, 28, sz.height }, true, static_cast<color_rgb>(0xf6f6f6));
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graph.rectangle({ 29, 1, sz.width, sz.height }, true, colors::white);
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}
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void item(graph_reference graph, const nana::rectangle& r, const attr& at)
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{
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if (!at.enabled)
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return;
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if(at.item_state == state::active)
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{
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graph.rectangle(r, false, static_cast<color_rgb>(0xa8d8eb));
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graph.palette(false, static_cast<color_rgb>(0xc0ddfc));
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paint::draw(graph).corner(r, 1);
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if(at.enabled)
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graph.gradual_rectangle(nana::rectangle(r).pare_off(1), static_cast<color_rgb>(0xE8F0F4), static_cast<color_rgb>(0xDBECF4), true);
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}
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if(at.checked && (checks::none != at.check_style))
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{
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graph.rectangle(r, false, static_cast<color_rgb>(0xCDD3E6));
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::nana::color clr(0xE6, 0xEF, 0xF4);
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graph.rectangle(nana::rectangle(r).pare_off(1), true, clr);
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nana::rectangle crook_r = r;
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crook_r.width = 16;
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crook_.radio(at.check_style == checks::option);
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crook_.draw(graph, clr, colors::black, crook_r, element_state::normal);
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}
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}
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void item_image(graph_reference graph, const nana::point& pos, unsigned image_px, const paint::image& img)
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{
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if (img.size().width > image_px || img.size().height > image_px)
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{
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img.stretch(rectangle{ img.size() }, graph, rectangle{ pos, ::nana::size(image_px, image_px) });
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return;
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}
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//Stretchs menu icon only when it doesn't fit, center it otherwise.
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//Contributed by kmribti(pr#102)
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img.paste(graph, {
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pos.x + static_cast<int>(image_px - img.size().width) / 2,
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pos.y + static_cast<int>(image_px - img.size().height) / 2
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});
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}
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void item_text(graph_reference graph, const nana::point& pos, const std::string& text, unsigned text_pixels, const attr& at)
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{
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graph.palette(true, at.enabled ? colors::black : colors::gray_border);
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nana::paint::text_renderer tr(graph);
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auto wstr = to_wstring(text);
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tr.render(pos, wstr.c_str(), wstr.length(), text_pixels, true);
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}
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void sub_arrow(graph_reference graph, const nana::point& pos, unsigned pixels, const attr&)
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{
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facade<element::arrow> arrow("hollow_triangle");
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arrow.direction(::nana::direction::east);
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arrow.draw(graph, {}, colors::black, { pos.x, pos.y + static_cast<int>(pixels - 16) / 2, 16, 16 }, element_state::normal);
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}
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private:
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facade<element::crook> crook_;
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};
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class menu_builder
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: noncopyable
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{
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public:
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using item_type = menu_item_type;
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using event_fn_t = item_type::event_fn_t;
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using iterator = menu_type::item_container::iterator;
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menu_builder(::nana::menu* owner)
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{
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root_.owner = owner;
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root_.max_pixels = screen::primary_monitor_size().width * 2 / 3;
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root_.item_pixels = 24;
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renderer_ = pat::cloneable<renderer_interface>(internal_renderer());
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}
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~menu_builder()
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{
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//Disconnects the link.
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//Clears the all links which are parent of mine
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for (auto link : root_.links)
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{
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for (auto & m : link->items)
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{
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if (m->linked.menu_ptr == &root_)
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{
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m->linked.own_creation = false;
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m->linked.menu_ptr = nullptr;
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}
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}
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}
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for (auto & m : root_.items)
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{
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if (m->linked.menu_ptr)
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{
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for (auto i = m->linked.menu_ptr->links.begin(); i != m->linked.menu_ptr->links.end();)
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{
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if ((*i) == &root_)
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i = m->linked.menu_ptr->links.erase(i);
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else
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++i;
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}
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if (m->linked.own_creation)
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delete m->linked.menu_ptr->owner;
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}
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}
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}
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void check_style(std::size_t index, checks s)
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{
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if(good_checks(s))
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{
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if(root_.items.size() > index)
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root_.items[index]->style = s;
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}
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}
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void checked(std::size_t pos, bool check)
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{
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if (root_.items.size() <= pos)
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return;
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item_type & m = *(root_.items[pos]);
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if(check && (checks::option == m.style))
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{
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//find a splitter in front of pos
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if (pos > 0)
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{
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do
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{
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if (root_.items[--pos]->flags.splitter)
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{
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++pos;
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break;
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}
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}while(pos > 0);
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}
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while (pos < root_.items.size())
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{
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item_type & el = *(root_.items[pos++]);
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if(el.flags.splitter) break;
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if(checks::option == el.style)
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el.flags.checked = false;
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}
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}
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m.flags.checked = check;
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}
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menu_type& data()
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{
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return root_;
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}
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//Returns false if the linked menu is already existing
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bool set_linkage(std::size_t pos, menu_type &linked, bool own_creation)
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{
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auto mi = root_.items.at(pos).get();
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if (mi->linked.menu_ptr)
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return false;
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mi->linked.menu_ptr = &linked;
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mi->linked.own_creation = own_creation;
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linked.links.emplace_back(&root_);
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return true;
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}
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pat::cloneable<renderer_interface>& renderer()
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{
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return renderer_;
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}
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void renderer(const pat::cloneable<renderer_interface>& rd)
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{
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renderer_ = rd;
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}
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private:
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menu_type root_;
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pat::cloneable<renderer_interface> renderer_;
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};//end class menu_builder
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//class menu_item_type::item_proxy
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menu_item_type::item_proxy::item_proxy(std::size_t pos, nana::menu* m):
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pos_{pos},
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menu_{m}
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{}
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menu_item_type::item_proxy& menu_item_type::item_proxy::enabled(bool v)
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{
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menu_->enabled(pos_, v);
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return *this;
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}
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bool menu_item_type::item_proxy::enabled() const
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{
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return menu_->enabled(pos_);
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}
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menu_item_type::item_proxy& menu_item_type::item_proxy::check_style(checks style)
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{
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menu_->check_style(pos_, style);
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return *this;
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}
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menu_item_type::item_proxy& menu_item_type::item_proxy::checked(bool ck)
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{
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menu_->checked(pos_, ck);
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return *this;
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}
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bool menu_item_type::item_proxy::checked() const
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{
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return menu_->checked(pos_);
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}
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menu_item_type::item_proxy& menu_item_type::item_proxy::text(std::string title)
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{
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menu_->text(pos_, title);
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return *this;
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}
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std::string menu_item_type::item_proxy::text() const
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{
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return menu_->text(pos_);
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}
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std::size_t menu_item_type::item_proxy::index() const
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{
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return pos_;
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}
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//end class item_proxy
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class menu_drawer
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: public drawer_trigger
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{
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public:
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using item_proxy = menu_item_type::item_proxy;
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menu_drawer()
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{
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state_.active = npos;
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state_.sub_window = false;
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state_.nullify_mouse = false;
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detail_.border.x = detail_.border.y = 2;
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}
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void set_run(menu_builder& mbuilder, menu_type& menu, std::function<void()> && menu_tree_destroyer)
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{
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mbuilder_ = &mbuilder;
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menu_ = &menu;
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fn_close_tree_ = std::move(menu_tree_destroyer);
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}
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menu_builder& mbuilder()
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{
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return *mbuilder_;
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}
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void 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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//Get the current cursor pos to determinate the monitor
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detail_.monitor_pos = API::cursor_position();
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}
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void mouse_move(graph_reference graph, const arg_mouse& arg)
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{
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state_.nullify_mouse = false;
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if(track_mouse(arg.pos))
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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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}
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void mouse_leave(graph_reference graph, const arg_mouse& arg)
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{
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mouse_move(graph, arg);
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}
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void mouse_down(graph_reference, const arg_mouse&)
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{
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state_.nullify_mouse = false;
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}
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void refresh(graph_reference graph)
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{
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if (!(mbuilder_ && menu_))
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return;
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_m_adjust_window_size();
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auto renderer = mbuilder_->renderer().get();
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renderer->background(graph, *widget_);
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const unsigned item_h_px = _m_item_height();
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const unsigned image_px = item_h_px - 2;
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nana::rectangle item_r(2, 2, graph_->width() - 4, item_h_px);
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unsigned strpixels = item_r.width - 60;
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int text_top_off = static_cast<int>(item_h_px - graph.text_extent_size(L"jh({[").height) / 2;
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std::size_t pos = 0;
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for (auto & m : menu_->items)
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{
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auto item_ptr = m.get();
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if (item_ptr->flags.splitter)
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{
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graph_->line({ item_r.x + 40, item_r.y }, { static_cast<int>(graph.width()) - 1, item_r.y }, colors::gray_border);
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item_r.y += 2;
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++pos;
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continue;
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}
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renderer_interface::attr attr = _m_make_renderer_attr(pos == state_.active, *item_ptr);
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//Draw item background
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renderer->item(*graph_, item_r, attr);
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//Draw text, the text is transformed from orignal for hotkey character
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wchar_t hotkey;
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std::string::size_type hotkey_pos;
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auto text = API::transform_shortkey_text(item_ptr->text, hotkey, &hotkey_pos);
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if (item_ptr->image.empty() == false)
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renderer->item_image(graph, nana::point(item_r.x + 5, item_r.y + static_cast<int>(item_h_px - image_px) / 2 - 1), image_px, item_ptr->image);
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renderer->item_text(graph, nana::point(item_r.x + 40, item_r.y + text_top_off), text, strpixels, attr);
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item_ptr->hotkey = hotkey;
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if (hotkey && item_ptr->flags.enabled)
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API::dev::draw_shortkey_underline(*graph_, text, hotkey, hotkey_pos, {item_r.x + 40, item_r.y + text_top_off}, colors::black);
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if (item_ptr->linked.menu_ptr)
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renderer->sub_arrow(graph, nana::point(graph_->width() - 20, item_r.y), item_h_px, attr);
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item_r.y += item_r.height + 1;
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++pos;
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}
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}
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std::size_t active() const
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{
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return state_.active;
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}
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bool goto_next(bool forword)
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{
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state_.nullify_mouse = true;
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auto & items = menu_->items;
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if (items.empty())
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return false;
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auto pos = state_.active;
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const auto lastpos = items.size() - 1;
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bool end = false;
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while(true)
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{
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if(forword)
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{
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if(pos == lastpos)
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{
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if (end)
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{
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pos = npos;
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break;
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}
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end = true;
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pos = 0;
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}
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else
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++pos;
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}
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else
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{
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if(pos == 0 || pos == npos)
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{
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if (end)
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break;
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end = true;
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pos = lastpos;
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}
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else
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--pos;
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}
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auto item_ptr = items.at(pos).get();
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if (!item_ptr->flags.splitter && item_ptr->flags.enabled)
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break;
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}
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if(pos != npos && pos != state_.active)
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{
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state_.active = pos;
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state_.sub_window = false;
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refresh(*graph_);
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return true;
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}
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return false;
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}
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bool track_mouse(const ::nana::point& pos)
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{
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if (!state_.nullify_mouse)
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{
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auto & items = menu_->items;
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std::size_t index = _m_get_index_by_pos(pos.x, pos.y);
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if (index != state_.active)
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{
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if ((index == npos) && items.at(state_.active)->linked.menu_ptr && state_.sub_window)
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return false;
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state_.active = (index != npos && items.at(index)->flags.splitter) ? npos : index;
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state_.active_timestamp = nana::system::timestamp();
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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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menu_type* data() const
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{
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return menu_;
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}
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void set_sub_window(bool subw)
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{
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state_.sub_window = subw;
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}
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menu_type* get_sub(nana::point& pos, unsigned long& tmstamp) const
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{
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if (npos == state_.active)
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return nullptr;
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auto & items = menu_->items;
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auto sub = items.at(state_.active)->linked.menu_ptr;
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if (sub)
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{
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pos.x = static_cast<int>(graph_->width()) - 2;
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pos.y = 2;
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|
|
auto index = state_.active;
|
|
for (auto & m : items)
|
|
{
|
|
if (0 == index--)
|
|
break;
|
|
|
|
if (m->flags.splitter)
|
|
{
|
|
pos.y += 2;
|
|
continue;
|
|
}
|
|
|
|
pos.y += _m_item_height() + 1;
|
|
}
|
|
|
|
tmstamp = state_.active_timestamp;
|
|
return sub;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
//send_shortkey has 3 states, 0 = UNKNOWN KEY, 1 = ITEM, 2 = GOTO SUBMENU
|
|
int send_shortkey(wchar_t key)
|
|
{
|
|
key = std::tolower(key);
|
|
std::size_t index = 0;
|
|
for(auto & m : menu_->items)
|
|
{
|
|
auto item_ptr = m.get();
|
|
if (std::tolower(m->hotkey) != key)
|
|
{
|
|
++index;
|
|
continue;
|
|
}
|
|
|
|
if (!item_ptr->flags.splitter)
|
|
{
|
|
if (item_ptr->linked.menu_ptr)
|
|
{
|
|
state_.active = index;
|
|
state_.active_timestamp = nana::system::timestamp();
|
|
|
|
API::refresh_window(*widget_);
|
|
return 2;
|
|
}
|
|
else if (item_ptr->flags.enabled)
|
|
{
|
|
//A pointer refers to a menu object which owns the menu window.
|
|
//After fn_close_tree_(), *this is an invalid object.
|
|
auto owner = menu_->owner;
|
|
|
|
fn_close_tree_();
|
|
if (item_ptr->event_handler)
|
|
{
|
|
item_proxy ip{ index, owner };
|
|
item_ptr->event_handler.operator()(ip);
|
|
}
|
|
return 1;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
private:
|
|
static renderer_interface::attr _m_make_renderer_attr(bool active, const menu_item_type & m)
|
|
{
|
|
renderer_interface::attr attr;
|
|
attr.item_state = (active ? renderer_interface::state::active : renderer_interface::state::normal);
|
|
attr.enabled = m.flags.enabled;
|
|
attr.checked = m.flags.checked;
|
|
attr.check_style = m.style;
|
|
return attr;
|
|
}
|
|
|
|
std::size_t _m_get_index_by_pos(int x, int y) const
|
|
{
|
|
if( (x < static_cast<int>(detail_.border.x)) ||
|
|
(x > static_cast<int>(graph_->width()) - static_cast<int>(detail_.border.x)) ||
|
|
(y < static_cast<int>(detail_.border.y)) ||
|
|
(y > static_cast<int>(graph_->height()) - static_cast<int>(detail_.border.y)))
|
|
return npos;
|
|
|
|
int pos = detail_.border.y;
|
|
std::size_t index = 0;
|
|
for (auto & m : menu_->items)
|
|
{
|
|
unsigned h = (m->flags.splitter ? 1 : _m_item_height());
|
|
if(pos <= y && y < static_cast<int>(pos + h))
|
|
return index;
|
|
else if(y < pos)
|
|
return npos;
|
|
|
|
++index;
|
|
pos += (h + 1);
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
unsigned _m_item_height() const
|
|
{
|
|
return menu_->item_pixels;
|
|
}
|
|
|
|
nana::size _m_client_size() const
|
|
{
|
|
nana::size size;
|
|
|
|
if (menu_->items.size())
|
|
{
|
|
for (auto & m : menu_->items)
|
|
{
|
|
if(false == m->flags.splitter)
|
|
{
|
|
nana::size item_size = graph_->text_extent_size(m->text);
|
|
if(size.width < item_size.width)
|
|
size.width = item_size.width;
|
|
}
|
|
else
|
|
++size.height;
|
|
}
|
|
|
|
size.width += (35 + 40);
|
|
size.height = static_cast<unsigned>(menu_->items.size() - size.height) * _m_item_height() + size.height + static_cast<unsigned>(menu_->items.size() - 1);
|
|
}
|
|
|
|
if (size.width > menu_->max_pixels)
|
|
size.width = menu_->max_pixels;
|
|
|
|
return size;
|
|
}
|
|
|
|
void _m_adjust_window_size() const
|
|
{
|
|
nana::size size = _m_client_size();
|
|
|
|
size.width += detail_.border.x * 2;
|
|
size.height += detail_.border.y * 2;
|
|
|
|
widget_->size(size);
|
|
|
|
nana::point pos;
|
|
API::calc_screen_point(*widget_, pos);
|
|
|
|
//get the screen coordinates of the widget pos.
|
|
auto scr_area = screen().from_point(detail_.monitor_pos).workarea();
|
|
|
|
if(pos.x + static_cast<int>(size.width) > scr_area.right())
|
|
pos.x = scr_area.right() - static_cast<int>(size.width);
|
|
if(pos.x < scr_area.x) pos.x = scr_area.x;
|
|
|
|
if(pos.y + static_cast<int>(size.height) > scr_area.bottom())
|
|
pos.y = scr_area.bottom() - static_cast<int>(size.height);
|
|
if(pos.y < scr_area.y) pos.y = scr_area.y;
|
|
|
|
API::calc_window_point(API::get_owner_window(*widget_), pos);
|
|
widget_->move(pos.x, pos.y);
|
|
}
|
|
private:
|
|
widget *widget_{nullptr};
|
|
paint::graphics *graph_{nullptr};
|
|
|
|
menu_builder* mbuilder_{ nullptr };
|
|
menu_type* menu_{ nullptr };
|
|
|
|
std::function<void()> fn_close_tree_;
|
|
|
|
struct state
|
|
{
|
|
std::size_t active;
|
|
unsigned active_timestamp;
|
|
bool sub_window: 1;
|
|
bool nullify_mouse: 1;
|
|
}state_;
|
|
|
|
struct widget_detail
|
|
{
|
|
nana::point monitor_pos; //It is used for determinating the monitor.
|
|
nana::upoint border;
|
|
}detail_;
|
|
};//end class menu_drawer
|
|
|
|
class menu_window
|
|
: public widget_object<category::root_tag, menu_drawer>
|
|
{
|
|
using drawer_type = menu_drawer;
|
|
using base_type = widget_object<category::root_tag, menu_drawer>;
|
|
public:
|
|
using item_type = menu_builder::item_type;
|
|
|
|
|
|
menu_window(window wd, bool is_wd_parent_menu, const point& pos, menu_builder& mbuilder, menu_type& menu_data)
|
|
//add a is_wd_parent_menu to determine whether the menu wants the focus.
|
|
//if a submenu gets the focus, the program may cause a crash error when the submenu is being destroyed
|
|
: base_type(wd, false, rectangle(pos, nana::size(2, 2)), appear::bald<appear::floating>()),
|
|
want_focus_{ (!wd) || ((!is_wd_parent_menu) && (API::root(API::focus_window()) != API::root(wd))) },
|
|
event_focus_{ nullptr }
|
|
{
|
|
caption("nana menu window");
|
|
get_drawer_trigger().set_run(mbuilder, menu_data, [this]{ this->_m_close_all(); });
|
|
|
|
state_.owner_menubar = state_.self_submenu = false;
|
|
state_.auto_popup_submenu = true;
|
|
|
|
submenu_.child = submenu_.parent = nullptr;
|
|
submenu_.object = nullptr;
|
|
|
|
state_.mouse_pos = API::cursor_position();
|
|
events().mouse_move.connect_unignorable([this](const arg_mouse&){
|
|
nana::point pos = API::cursor_position();
|
|
if (pos != state_.mouse_pos)
|
|
{
|
|
menu_window * root = this;
|
|
while (root->submenu_.parent)
|
|
root = root->submenu_.parent;
|
|
root->state_.auto_popup_submenu = true;
|
|
|
|
state_.mouse_pos = pos;
|
|
}
|
|
});
|
|
}
|
|
|
|
void popup(bool owner_menubar)
|
|
{
|
|
if (!want_focus_)
|
|
{
|
|
API::activate_window(this->parent());
|
|
API::take_active(this->handle(), false, nullptr);
|
|
}
|
|
|
|
if(submenu_.parent == nullptr)
|
|
{
|
|
state_.owner_menubar = owner_menubar;
|
|
API::dev::register_menu_window(this->handle(), !owner_menubar);
|
|
}
|
|
|
|
auto & events = this->events();
|
|
events.destroy.connect_unignorable([this](const arg_destroy&){
|
|
_m_destroy();
|
|
});
|
|
|
|
events.key_press.connect_unignorable([this](const arg_keyboard& arg){
|
|
_m_key_down(arg);
|
|
});
|
|
|
|
auto fn = [this](const arg_mouse& arg)
|
|
{
|
|
if (event_code::mouse_down == arg.evt_code)
|
|
_m_open_sub(0); //Try to open submenu immediately
|
|
else if ((event_code::mouse_up == arg.evt_code) && (mouse::left_button == arg.button))
|
|
pick();
|
|
};
|
|
|
|
events.mouse_down.connect_unignorable(fn);
|
|
events.mouse_up.connect_unignorable(fn);
|
|
|
|
timer_.interval(100);
|
|
timer_.elapse([this]{
|
|
this->_m_open_sub(500); //Try to open submenu
|
|
});
|
|
timer_.start();
|
|
|
|
show();
|
|
|
|
if (want_focus_)
|
|
{
|
|
event_focus_ = events.focus.connect_unignorable([this](const arg_focus& arg)
|
|
{
|
|
//when the focus of the menu window is losing, close the menu.
|
|
//But here is not every menu window may have focus event installed,
|
|
//It is only installed when the owner of window is the desktop window.
|
|
|
|
if (false == arg.getting && (arg.receiver != API::root(*this)))
|
|
{
|
|
for (auto child = submenu_.child; child; child = child->submenu_.child)
|
|
{
|
|
if (API::root(child->handle()) == arg.receiver)
|
|
return;
|
|
}
|
|
|
|
_m_close_all();
|
|
}
|
|
});
|
|
|
|
focus();
|
|
activate();
|
|
}
|
|
}
|
|
|
|
void goto_next(bool forward)
|
|
{
|
|
menu_window * object = this;
|
|
|
|
while(object->submenu_.child)
|
|
object = object->submenu_.child;
|
|
|
|
state_.auto_popup_submenu = false;
|
|
|
|
if(object->get_drawer_trigger().goto_next(forward))
|
|
API::update_window(object->handle());
|
|
}
|
|
|
|
bool submenu(bool enter)
|
|
{
|
|
menu_window * menu_wd = this;
|
|
while (menu_wd->submenu_.child)
|
|
menu_wd = menu_wd->submenu_.child;
|
|
|
|
state_.auto_popup_submenu = false;
|
|
|
|
if (!enter)
|
|
{
|
|
if (menu_wd->submenu_.parent)
|
|
{
|
|
auto & sub = menu_wd->submenu_.parent->submenu_;
|
|
sub.child = nullptr;
|
|
sub.object = nullptr;
|
|
|
|
menu_wd->close();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return menu_wd->_m_manipulate_sub(0, true);
|
|
}
|
|
|
|
int send_shortkey(wchar_t key)
|
|
{
|
|
menu_window * object = this;
|
|
while(object->submenu_.child)
|
|
object = object->submenu_.child;
|
|
|
|
return object->get_drawer_trigger().send_shortkey(key);
|
|
}
|
|
|
|
void pick()
|
|
{
|
|
menu_window * object = this;
|
|
while (object->submenu_.child)
|
|
object = object->submenu_.child;
|
|
|
|
auto active = object->get_drawer_trigger().active();
|
|
auto * menu = object->get_drawer_trigger().data();
|
|
if ((npos == active) || !menu)
|
|
return;
|
|
|
|
menu_item_type & item = *(menu->items.at(active));
|
|
|
|
if ((!item.flags.enabled) || item.flags.splitter || item.linked.menu_ptr)
|
|
return;
|
|
|
|
if (checks::highlight == item.style)
|
|
{
|
|
item.flags.checked = !item.flags.checked;
|
|
}
|
|
else if (checks::option == item.style)
|
|
{
|
|
get_drawer_trigger().mbuilder().checked(active, true);
|
|
}
|
|
|
|
this->_m_close_all(); //means deleting this;
|
|
//The deleting operation has moved here, because item.event_handler.operator()(ip)
|
|
//may create a window, which make a killing focus for menu window, if so the close_all
|
|
//operation preformences after item.event_handler.operator()(ip), that would be deleting this object twice!
|
|
|
|
if (item.event_handler)
|
|
{
|
|
item_type::item_proxy ip{ active, menu->owner };
|
|
item.event_handler.operator()(ip);
|
|
}
|
|
}
|
|
private:
|
|
//_m_destroy just destroys the children windows.
|
|
//The all window including parent windows want to be closed by calling the _m_close_all() instead of close()
|
|
void _m_destroy()
|
|
{
|
|
if(this->submenu_.parent)
|
|
{
|
|
this->submenu_.parent->submenu_.child = nullptr;
|
|
this->submenu_.parent->submenu_.object = nullptr;
|
|
}
|
|
|
|
if(this->submenu_.child)
|
|
{
|
|
menu_window * tail = this;
|
|
while(tail->submenu_.child) tail = tail->submenu_.child;
|
|
|
|
while(tail != this)
|
|
{
|
|
menu_window * junk = tail;
|
|
tail = tail->submenu_.parent;
|
|
junk->close();
|
|
}
|
|
}
|
|
}
|
|
|
|
void _m_close_all()
|
|
{
|
|
menu_window * root = this;
|
|
while(root->submenu_.parent)
|
|
root = root->submenu_.parent;
|
|
|
|
//Avoid generating a focus event when the menu is destroying and a focus event.
|
|
if (event_focus_)
|
|
umake_event(event_focus_);
|
|
|
|
if(root != this)
|
|
{
|
|
//Disconnect the menu chain at this menu, and delete the menus before this.
|
|
this->submenu_.parent->submenu_.child = nullptr;
|
|
this->submenu_.parent->submenu_.object = nullptr;
|
|
this->submenu_.parent = nullptr;
|
|
root->close();
|
|
//The submenu is treated its parent menu as an owner window,
|
|
//if the root is closed, the all submenus will be closed
|
|
}
|
|
else
|
|
{
|
|
//Then, delete the menus from this.
|
|
this->close();
|
|
}
|
|
}
|
|
|
|
void _m_key_down(const arg_keyboard& arg)
|
|
{
|
|
switch(arg.key)
|
|
{
|
|
case keyboard::os_arrow_up:
|
|
case keyboard::os_arrow_down:
|
|
this->goto_next(keyboard::os_arrow_down == arg.key);
|
|
break;
|
|
case keyboard::os_arrow_left:
|
|
case keyboard::os_arrow_right:
|
|
this->submenu(keyboard::os_arrow_right == arg.key);
|
|
break;
|
|
case keyboard::enter:
|
|
this->pick();
|
|
break;
|
|
case keyboard::escape:
|
|
//Leave sub menu. But if the sub menu doesn't exist,
|
|
//close the menu.
|
|
if (!this->submenu(false))
|
|
close();
|
|
break;
|
|
default:
|
|
switch (send_shortkey(arg.key))
|
|
{
|
|
case 0:
|
|
if (this->empty() == false)
|
|
close();
|
|
break;
|
|
case 1: //The menu has been closed
|
|
break;
|
|
case 2:
|
|
this->submenu(true);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool _m_manipulate_sub(unsigned long delay_ms, bool forced)
|
|
{
|
|
auto & drawer = get_drawer_trigger();
|
|
::nana::point pos;
|
|
unsigned long tmstamp;
|
|
|
|
auto menu_ptr = drawer.get_sub(pos, tmstamp);
|
|
|
|
if (menu_ptr == submenu_.object)
|
|
return false;
|
|
|
|
if (menu_ptr && (::nana::system::timestamp() - tmstamp < delay_ms))
|
|
return false;
|
|
|
|
if (submenu_.object && (menu_ptr != submenu_.object))
|
|
{
|
|
drawer.set_sub_window(false);
|
|
submenu_.child->close();
|
|
submenu_.child = nullptr;
|
|
submenu_.object = nullptr;
|
|
}
|
|
|
|
if (menu_ptr)
|
|
{
|
|
menu_window * root = this;
|
|
while (root->submenu_.parent)
|
|
root = root->submenu_.parent;
|
|
|
|
if ((submenu_.object == nullptr) && menu_ptr && (forced || root->state_.auto_popup_submenu))
|
|
{
|
|
menu_ptr->item_pixels = drawer.data()->item_pixels;
|
|
menu_ptr->gaps = drawer.data()->gaps;
|
|
pos += menu_ptr->gaps;
|
|
|
|
menu_window & mwnd = form_loader<menu_window, false>()(handle(), true, pos, drawer.mbuilder(), *menu_ptr);
|
|
mwnd.state_.self_submenu = true;
|
|
submenu_.child = &mwnd;
|
|
submenu_.child->submenu_.parent = this;
|
|
submenu_.object = menu_ptr;
|
|
|
|
API::set_window_z_order(handle(), mwnd.handle(), z_order_action::none);
|
|
|
|
mwnd.popup(state_.owner_menubar);
|
|
drawer.set_sub_window(true);
|
|
if (forced)
|
|
mwnd.goto_next(true);
|
|
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void _m_open_sub(unsigned delay_ms) //check_repeatly
|
|
{
|
|
if(state_.auto_popup_submenu)
|
|
{
|
|
auto pos = API::cursor_position();
|
|
|
|
API::calc_window_point(handle(), pos);
|
|
get_drawer_trigger().track_mouse(pos);
|
|
|
|
_m_manipulate_sub(delay_ms, false);
|
|
}
|
|
}
|
|
private:
|
|
const bool want_focus_;
|
|
event_handle event_focus_;
|
|
|
|
timer timer_;
|
|
struct state_type
|
|
{
|
|
bool self_submenu; //Indicates whether the menu window is used for a submenu
|
|
bool owner_menubar;
|
|
bool auto_popup_submenu;
|
|
nana::point mouse_pos;
|
|
}state_;
|
|
|
|
struct submenu_type
|
|
{
|
|
menu_window* parent;
|
|
menu_window* child;
|
|
const menu_type *object;
|
|
}submenu_;
|
|
};
|
|
//end class menu_window
|
|
}//end namespace menu
|
|
}//end namespace drawerbase
|
|
|
|
//class menu
|
|
struct menu::implement
|
|
{
|
|
struct info
|
|
{
|
|
menu * handle;
|
|
bool kill;
|
|
};
|
|
|
|
drawerbase::menu::menu_builder mbuilder;
|
|
drawerbase::menu::menu_window * window_ptr;
|
|
std::function<void()> destroy_answer;
|
|
|
|
implement(menu* self):
|
|
mbuilder{self}
|
|
{
|
|
}
|
|
};
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|
|
|
menu::menu()
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|
:impl_(new implement(this))
|
|
{
|
|
impl_->window_ptr = nullptr;
|
|
}
|
|
|
|
menu::~menu()
|
|
{
|
|
this->close();
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|
delete impl_;
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|
}
|
|
|
|
using item_type = drawerbase::menu::menu_item_type;
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|
|
|
auto menu::append(std::string text_utf8, const menu::event_fn_t& handler) -> item_proxy
|
|
{
|
|
std::unique_ptr<item_type> item{ new item_type{ std::move(text_utf8), handler } };
|
|
impl_->mbuilder.data().items.emplace_back(std::move(item));
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|
return item_proxy{size() - 1, this};
|
|
}
|
|
|
|
void menu::append_splitter()
|
|
{
|
|
impl_->mbuilder.data().items.emplace_back(new item_type);
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|
}
|
|
|
|
auto menu::insert(std::size_t pos, std::string text_utf8, const event_fn_t& handler) -> item_proxy
|
|
{
|
|
auto & items = impl_->mbuilder.data().items;
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|
if (pos > items.size())
|
|
throw std::out_of_range("menu: a new item inserted to an invalid position");
|
|
|
|
std::unique_ptr<item_type> item{ new item_type{ std::move(text_utf8), handler } };
|
|
|
|
items.emplace(
|
|
#ifdef _MSC_VER
|
|
items.cbegin() + pos,
|
|
#else
|
|
items.begin() + pos,
|
|
#endif
|
|
std::move(item));
|
|
|
|
return item_proxy{ pos, this};
|
|
}
|
|
|
|
void menu::clear()
|
|
{
|
|
internal_scope_guard lock;
|
|
impl_->mbuilder.data().items.clear();
|
|
}
|
|
|
|
void menu::enabled(std::size_t index, bool enable)
|
|
{
|
|
impl_->mbuilder.data().items.at(index)->flags.enabled = enable;
|
|
}
|
|
|
|
bool menu::enabled(std::size_t index) const
|
|
{
|
|
return impl_->mbuilder.data().items.at(index)->flags.enabled;
|
|
}
|
|
|
|
void menu::erase(std::size_t index)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto & items = impl_->mbuilder.data().items;
|
|
if(index < items.size())
|
|
items.erase(items.begin() + index);
|
|
}
|
|
|
|
void menu::image(std::size_t index, const paint::image& img)
|
|
{
|
|
impl_->mbuilder.data().items.at(index)->image = img;
|
|
}
|
|
|
|
void menu::text(std::size_t index, std::string text_utf8)
|
|
{
|
|
impl_->mbuilder.data().items.at(index)->text.swap(text_utf8);
|
|
}
|
|
|
|
std::string menu::text(std::size_t index) const
|
|
{
|
|
return impl_->mbuilder.data().items.at(index)->text;
|
|
}
|
|
|
|
bool menu::link(std::size_t index, menu& menu_obj)
|
|
{
|
|
return impl_->mbuilder.set_linkage(index, menu_obj.impl_->mbuilder.data(), false);
|
|
}
|
|
|
|
menu* menu::link(std::size_t index) const
|
|
{
|
|
auto mi = impl_->mbuilder.data().items.at(index).get();
|
|
|
|
if (mi && mi->linked.menu_ptr)
|
|
return mi->linked.menu_ptr->owner;
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
menu *menu::create_sub_menu(std::size_t index)
|
|
{
|
|
std::unique_ptr<menu> guard{new menu};
|
|
if (impl_->mbuilder.set_linkage(index, guard->impl_->mbuilder.data(), true))
|
|
return guard.release();
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void menu::popup(window wd, int x, int y)
|
|
{
|
|
_m_popup(wd, { x, y }, false);
|
|
}
|
|
|
|
void menu::popup_await(window wd, int x, int y)
|
|
{
|
|
_m_popup(wd, { x, y }, false);
|
|
if (impl_->window_ptr)
|
|
API::wait_for(impl_->window_ptr->handle());
|
|
}
|
|
|
|
void menu::close()
|
|
{
|
|
if (impl_->window_ptr)
|
|
{
|
|
impl_->window_ptr->close();
|
|
impl_->window_ptr = nullptr;
|
|
}
|
|
}
|
|
|
|
void menu::check_style(std::size_t index, checks style)
|
|
{
|
|
impl_->mbuilder.check_style(index, style);
|
|
}
|
|
|
|
void menu::checked(std::size_t index, bool check)
|
|
{
|
|
impl_->mbuilder.checked(index, check);
|
|
}
|
|
|
|
bool menu::checked(std::size_t index) const
|
|
{
|
|
return impl_->mbuilder.data().items.at(index)->flags.checked;
|
|
}
|
|
|
|
void menu::answerer(std::size_t index, const event_fn_t& fn)
|
|
{
|
|
impl_->mbuilder.data().items.at(index)->event_handler = fn;
|
|
}
|
|
|
|
void menu::destroy_answer(std::function<void()> fn)
|
|
{
|
|
impl_->destroy_answer = std::move(fn);
|
|
}
|
|
|
|
void menu::gaps(const nana::point& pos)
|
|
{
|
|
impl_->mbuilder.data().gaps = pos;
|
|
}
|
|
|
|
void menu::goto_next(bool forward)
|
|
{
|
|
if (impl_->window_ptr)
|
|
impl_->window_ptr->goto_next(forward);
|
|
}
|
|
|
|
bool menu::goto_submen()
|
|
{
|
|
return (impl_->window_ptr ? impl_->window_ptr->submenu(true) : false);
|
|
}
|
|
|
|
bool menu::exit_submenu()
|
|
{
|
|
return (impl_->window_ptr ? impl_->window_ptr->submenu(false) : false);
|
|
}
|
|
|
|
std::size_t menu::size() const
|
|
{
|
|
return impl_->mbuilder.data().items.size();
|
|
}
|
|
|
|
int menu::send_shortkey(wchar_t key)
|
|
{
|
|
return (impl_->window_ptr ? impl_->window_ptr->send_shortkey(key) : 0);
|
|
}
|
|
|
|
void menu::pick()
|
|
{
|
|
if (impl_->window_ptr)
|
|
impl_->window_ptr->pick();
|
|
}
|
|
|
|
menu& menu::max_pixels(unsigned px)
|
|
{
|
|
impl_->mbuilder.data().max_pixels = (px > 100 ? px : 100);
|
|
return *this;
|
|
}
|
|
|
|
unsigned menu::max_pixels() const
|
|
{
|
|
return impl_->mbuilder.data().max_pixels;
|
|
}
|
|
|
|
menu& menu::item_pixels(unsigned px)
|
|
{
|
|
impl_->mbuilder.data().item_pixels = px;
|
|
return *this;
|
|
}
|
|
|
|
unsigned menu::item_pixels() const
|
|
{
|
|
return impl_->mbuilder.data().item_pixels;
|
|
}
|
|
|
|
const pat::cloneable<menu::renderer_interface>& menu::renderer() const
|
|
{
|
|
return impl_->mbuilder.renderer();
|
|
}
|
|
|
|
void menu::renderer(const pat::cloneable<renderer_interface>& rd)
|
|
{
|
|
impl_->mbuilder.renderer(rd);
|
|
}
|
|
|
|
window menu::handle() const
|
|
{
|
|
return (impl_->window_ptr ? impl_->window_ptr->handle() : nullptr);
|
|
}
|
|
|
|
void menu::_m_popup(window wd, const point& pos, bool called_by_menubar)
|
|
{
|
|
if (impl_->mbuilder.data().items.size())
|
|
{
|
|
close();
|
|
|
|
impl_->window_ptr = &(form_loader<drawerbase::menu::menu_window, false>()(wd, false, pos, impl_->mbuilder, impl_->mbuilder.data()));
|
|
impl_->window_ptr->events().destroy.connect_unignorable([this](const arg_destroy&){
|
|
impl_->window_ptr = nullptr;
|
|
if (impl_->destroy_answer)
|
|
impl_->destroy_answer();
|
|
});
|
|
impl_->window_ptr->popup(called_by_menubar);
|
|
}
|
|
}
|
|
//end class menu
|
|
|
|
detail::popuper menu_popuper(menu& mobj, mouse ms)
|
|
{
|
|
return detail::popuper(mobj, ms);
|
|
}
|
|
|
|
detail::popuper menu_popuper(menu& mobj, window owner, const point& pos, mouse ms)
|
|
{
|
|
return detail::popuper(mobj, owner, pos, ms);
|
|
}
|
|
|
|
namespace detail
|
|
{
|
|
//class popuper
|
|
popuper::popuper(menu& mobj, mouse ms)
|
|
: mobj_(mobj), owner_(nullptr), take_mouse_pos_(true), mouse_(ms)
|
|
{}
|
|
|
|
popuper::popuper(menu& mobj, window owner, const point& pos, mouse ms)
|
|
: mobj_(mobj), owner_(owner), take_mouse_pos_(false), pos_(pos), mouse_(ms)
|
|
{}
|
|
|
|
void popuper::operator()(const arg_mouse& arg)
|
|
{
|
|
if(take_mouse_pos_)
|
|
{
|
|
switch(arg.evt_code)
|
|
{
|
|
case event_code::click:
|
|
case event_code::mouse_down:
|
|
case event_code::mouse_up:
|
|
owner_ = arg.window_handle;
|
|
pos_ = arg.pos;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
|
|
if((mouse::any_button == mouse_) || (mouse_ == arg.button))
|
|
mobj_.popup(owner_, pos_.x, pos_.y);
|
|
}
|
|
//end class
|
|
}//end namespace detail
|
|
}//end namespace nana
|