495 lines
12 KiB
C++
495 lines
12 KiB
C++
/*
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* A Toolbar Implementation
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* Nana C++ Library(http://www.nanapro.org)
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* Copyright(C) 2003-2016 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/toolbar.cpp
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* @contributors:
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* kmribti(pr#105)
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*/
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#include <nana/gui/widgets/toolbar.hpp>
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#include <nana/gui/tooltip.hpp>
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#include <vector>
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namespace nana
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{
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arg_toolbar::arg_toolbar(toolbar& tbar, std::size_t btn)
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: widget(tbar), button{btn}
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{}
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namespace drawerbase
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{
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namespace toolbar
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{
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struct item_type
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{
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enum kind{ button, container};
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typedef std::size_t size_type;
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std::string text;
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nana::paint::image image;
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unsigned pixels{0};
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unsigned position{ 0 }; // last item position.
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nana::size textsize;
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bool enable{true};
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kind type;
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item_type(const std::string& text, const nana::paint::image& img, kind type)
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:text(text), image(img), type(type)
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{}
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};
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class item_container
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{
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public:
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using container_type = std::vector<item_type*>;
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using size_type = container_type::size_type;
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~item_container()
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{
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for(auto ptr : cont_)
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delete ptr;
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}
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void insert(size_type pos, std::string text, const nana::paint::image& img, item_type::kind type)
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{
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item_type* m = new item_type(std::move(text), img, type);
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if(pos < cont_.size())
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cont_.insert(cont_.begin() + pos, m);
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else
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cont_.push_back(m);
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}
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void push_back(const std::string& text, const nana::paint::image& img)
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{
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insert(cont_.size(), text, img, item_type::kind::button);
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}
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void push_back(const std::string& text)
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{
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insert(cont_.size(), text, nana::paint::image(), item_type::kind::button);
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}
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//Contributed by kmribti(pr#105)
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void go_right() noexcept
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{
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right_ = cont_.size();
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}
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//Contributed by kmribti(pr#105)
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size_t right() const noexcept
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{
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return right_;
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}
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void insert(size_type pos)
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{
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if(pos < cont_.size())
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cont_.insert(cont_.begin() + pos, static_cast<item_type*>(nullptr)); //both works in C++0x and C++2003
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else
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cont_.push_back(nullptr);
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}
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void separate()
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{
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cont_.push_back(nullptr);
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}
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size_type size() const noexcept
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{
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return cont_.size();
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}
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container_type& container() noexcept
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{
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return cont_;
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}
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item_type * at(size_type pos)
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{
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return cont_.at(pos);
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}
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private:
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container_type cont_;
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size_t right_{ npos };
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};
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class item_renderer
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{
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public:
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enum class state_t{normal, highlighted, selected};
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const static unsigned extra_size = 6;
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item_renderer(nana::paint::graphics& graph, bool textout, unsigned scale, const ::nana::color& bgcolor)
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:graph(graph), textout(textout), scale(scale), bgcolor(bgcolor)
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{}
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void operator()(int x, int y, unsigned width, unsigned height, item_type& item, state_t state)
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{
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//draw background
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if (state != state_t::normal)
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{
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nana::rectangle background_r(x, y, width, height);
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graph.rectangle(background_r, false, static_cast<color_rgb>(0x3399FF));
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if (state_t::highlighted == state || state_t::selected == state)
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graph.gradual_rectangle(background_r.pare_off(1), bgcolor, static_cast<color_rgb>(state_t::selected == state ? 0x99CCFF : 0xC0DDFC), true);
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}
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if(!item.image.empty())
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{
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auto imgsize = item.image.size();
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if (imgsize.width > scale) imgsize.width = scale;
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if (imgsize.height > scale) imgsize.height = scale;
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nana::point pos(
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x + static_cast<int>(scale + extra_size - imgsize.width) / 2,
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y + static_cast<int>(height - imgsize.height) / 2);
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item.image.paste(::nana::rectangle{ imgsize }, graph, pos);
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if(item.enable == false)
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{
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nana::paint::graphics gh(imgsize);
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gh.bitblt(::nana::rectangle{ imgsize }, graph, pos);
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gh.rgb_to_wb();
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gh.paste(graph, pos.x, pos.y);
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}
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else if(state == state_t::normal)
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graph.blend(nana::rectangle(pos, imgsize), ::nana::color(0xc0, 0xdd, 0xfc).blend(bgcolor, 0.5), 0.25);
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x += scale;
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width -= scale;
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}
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if(textout)
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{
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graph.string({ x + static_cast<int>(width - item.textsize.width) / 2, y + static_cast<int>(height - item.textsize.height) / 2 }, item.text);
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}
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}
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protected:
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nana::paint::graphics& graph;
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bool textout;
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unsigned scale;
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::nana::color bgcolor;
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};
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struct drawer::drawer_impl_type
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{
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event_handle event_size{ nullptr };
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paint::graphics* graph_ptr{ nullptr };
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unsigned scale{16};
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bool textout{false};
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size_type which{npos};
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item_renderer::state_t state{item_renderer::state_t::normal};
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item_container items;
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::nana::tooltip tooltip;
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};
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//class drawer
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drawer::drawer()
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: impl_(new drawer_impl_type)
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{
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}
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drawer::~drawer()
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{
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delete impl_;
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}
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item_container& drawer::items() const
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{
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return impl_->items;
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}
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void drawer::scale(unsigned s)
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{
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impl_->scale = s;
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for(auto m : impl_->items.container())
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_m_calc_pixels(m, true);
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}
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void drawer::refresh(graph_reference graph)
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{
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int x = 2, y = 2;
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auto bgcolor = API::bgcolor(widget_->handle());
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graph.palette(true, bgcolor);
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graph.gradual_rectangle(rectangle{ graph.size() }, bgcolor.blend(colors::white, 0.9), bgcolor.blend(colors::black, 0.95), true);
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item_renderer ir(graph, impl_->textout, impl_->scale, bgcolor);
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size_type index = 0;
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for (auto item : impl_->items.container())
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{
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if (item)
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{
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_m_calc_pixels(item, false);
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item->position = x;
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ir(x, y, item->pixels, impl_->scale + ir.extra_size, *item, (index == impl_->which ? impl_->state : item_renderer::state_t::normal));
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x += item->pixels;
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}
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else
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{
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x += 2;
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graph.line({ x, y + 2 }, { x, y + static_cast<int>(impl_->scale + ir.extra_size) - 4 }, static_cast<color_rgb>(0x808080));
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x += 4;
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}
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++index;
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//Reset the x position of items which are right aligned
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//Contributed by kmribti(pr#105)
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if (index == impl_->items.right() && index < impl_->items.size())
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{
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unsigned total_x = 0;
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for (size_t i = index; i < impl_->items.size(); i++) {
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if (impl_->items.at(i) == nullptr) {
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total_x += 8; // we assume that separator has width = 8.
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}
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else {
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_m_calc_pixels(impl_->items.at(i), false);
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total_x += impl_->items.at(i)->pixels;
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}
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}
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x = graph.size().width - total_x - 4;
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}
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}
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}
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void drawer::attached(widget_reference widget, graph_reference graph)
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{
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impl_->graph_ptr = &graph;
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widget_ = static_cast< ::nana::toolbar*>(&widget);
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widget.caption("nana toolbar");
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if (widget_->detached()) return;
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impl_->event_size = API::events(widget.parent()).resized.connect_unignorable([this](const arg_resized& arg)
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{
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auto wd = widget_->handle();
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API::window_size(wd, nana::size(arg.width, widget_->size().height));
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API::update_window(wd);
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});
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}
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void drawer::detached()
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{
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API::umake_event(impl_->event_size);
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impl_->event_size = nullptr;
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impl_->graph_ptr = nullptr;
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}
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void drawer::mouse_move(graph_reference graph, const arg_mouse& arg)
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{
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if (arg.left_button)
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return;
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size_type which = _m_which(arg.pos, true);
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if(impl_->which != which)
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{
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auto & container = impl_->items.container();
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if (impl_->which != npos && container.at(impl_->which)->enable)
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{
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::nana::arg_toolbar arg{ *widget_, impl_->which };
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widget_->events().leave.emit(arg);
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}
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impl_->which = which;
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if (which == npos || container.at(which)->enable)
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{
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impl_->state = item_renderer::state_t::highlighted;
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refresh(graph);
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API::lazy_refresh();
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if (impl_->state == item_renderer::state_t::highlighted)
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{
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::nana::arg_toolbar arg{ *widget_, which };
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widget_->events().enter.emit(arg);
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}
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}
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if(which != npos)
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impl_->tooltip.show(widget_->handle(), nana::point(arg.pos.x, arg.pos.y + 20), (*(container.begin() + which))->text, 0);
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else
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impl_->tooltip.close();
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}
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}
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void drawer::mouse_leave(graph_reference graph, const arg_mouse&)
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{
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if(impl_->which != npos)
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{
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size_type which = impl_->which;
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impl_->which = npos;
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refresh(graph);
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API::lazy_refresh();
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if (which != npos && impl_->items.at(which)->enable)
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{
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::nana::arg_toolbar arg{ *widget_, which };
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widget_->events().leave.emit(arg);
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}
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}
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impl_->tooltip.close();
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}
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void drawer::mouse_down(graph_reference graph, const arg_mouse&)
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{
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impl_->tooltip.close();
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if(impl_->which != npos && (impl_->items.at(impl_->which)->enable))
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{
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impl_->state = item_renderer::state_t::selected;
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refresh(graph);
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API::lazy_refresh();
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}
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}
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void drawer::mouse_up(graph_reference graph, const arg_mouse& arg)
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{
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if(impl_->which != npos)
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{
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size_type which = _m_which(arg.pos, false);
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if(impl_->which == which)
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{
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::nana::arg_toolbar arg{ *widget_, which };
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widget_->events().selected.emit(arg);
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impl_->state = item_renderer::state_t::highlighted;
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}
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else
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{
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impl_->which = which;
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impl_->state = (which == npos ? item_renderer::state_t::normal : item_renderer::state_t::highlighted);
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}
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refresh(graph);
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API::lazy_refresh();
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}
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}
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drawer::size_type drawer::_m_which(point pos, bool want_if_disabled) const
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{
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if (pos.x < 2 || pos.y < 2 || pos.y >= static_cast<int>(impl_->scale + item_renderer::extra_size + 2)) return npos;
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pos.x -= 2;
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std::size_t index = 0;
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for(auto m: impl_->items.container())
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{
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unsigned x = static_cast<unsigned>(pos.x);
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if (m && x >= m->position && x <= (m->position+m->pixels))
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return (((!m) || (!m->enable && !want_if_disabled)) ? npos : index);
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++index;
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}
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return npos;
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}
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void drawer::_m_calc_pixels(item_type* item, bool force)
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{
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if (item && (force || (0 == item->pixels)))
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{
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if (item->text.size())
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item->textsize = impl_->graph_ptr->text_extent_size(item->text);
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if (item->image.empty() == false)
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item->pixels = impl_->scale + item_renderer::extra_size;
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if (item->textsize.width && impl_->textout)
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item->pixels += item->textsize.width + 8;
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}
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}
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//class drawer
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}//end namespace toolbar
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}//end namespace drawerbase
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//class toolbar
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toolbar::toolbar(window wd, bool visible, bool detached) :
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detached_(detached)
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{
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create(wd, rectangle(), visible);
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}
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toolbar::toolbar(window wd, const rectangle& r, bool visible, bool detached) :
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detached_(detached)
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{
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create(wd, r, visible);
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}
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//Contributed by kmribti(pr#105)
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void toolbar::go_right()
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{
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get_drawer_trigger().items().go_right();
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}
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void toolbar::separate()
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{
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get_drawer_trigger().items().separate();
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API::refresh_window(handle());
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}
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void toolbar::append(const std::string& text, const nana::paint::image& img)
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{
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get_drawer_trigger().items().push_back(text, img);
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API::refresh_window(handle());
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}
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void toolbar::append(const std::string& text)
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{
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get_drawer_trigger().items().push_back(text, {});
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API::refresh_window(this->handle());
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}
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bool toolbar::enable(size_type pos) const
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{
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auto & items = get_drawer_trigger().items();
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if (items.size() <= pos)
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return false;
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auto m = items.at(pos);
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return (m && m->enable);
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}
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void toolbar::enable(size_type pos, bool eb)
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{
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auto & items = get_drawer_trigger().items();
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if (items.size() > pos)
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{
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auto m = items.at(pos);
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if (m && (m->enable != eb))
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{
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m->enable = eb;
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API::refresh_window(this->handle());
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}
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}
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}
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void toolbar::scale(unsigned s)
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{
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get_drawer_trigger().scale(s);
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API::refresh_window(handle());
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}
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//end class toolbar
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}//end namespace nana
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