36095c9190
disabled checkbox square now looks like disabled textbox In addition found an unused instruction in text_editor.cpp: could be replaced or removed (or left as it is :) )
320 lines
7.5 KiB
C++
320 lines
7.5 KiB
C++
/*
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* A CheckBox Implementation
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* Nana C++ Library(http://www.nanapro.org)
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* Copyright(C) 2003-2018 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/checkbox.cpp
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*/
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#include <nana/gui/widgets/checkbox.hpp>
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#include <nana/paint/text_renderer.hpp>
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#include <nana/gui/element.hpp>
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#include <algorithm>
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namespace nana{ namespace drawerbase
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{
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namespace checkbox
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{
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typedef element::crook_interface::state crook_state;
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struct drawer::implement
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{
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widget * widget_ptr;
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scheme * scheme_ptr;
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bool react;
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bool radio;
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facade<element::crook> crook;
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};
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//class drawer
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drawer::drawer()
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: impl_(new implement)
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{
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impl_->widget_ptr = nullptr;
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impl_->react = true;
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impl_->radio = false;
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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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void drawer::attached(widget_reference widget, graph_reference)
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{
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impl_->widget_ptr = &widget;
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impl_->scheme_ptr =static_cast<scheme*>(API::dev::get_scheme(widget));
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API::dev::enable_space_click(widget, true);
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}
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void drawer::refresh(graph_reference graph)
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{
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auto wdg = impl_->widget_ptr;
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//draw background
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if (!API::dev::copy_transparent_background(*wdg, graph))
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graph.rectangle(true, wdg->bgcolor());
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//draw title
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if (graph.width() > 16 + interval)
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{
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auto title = to_wstring(wdg->caption_native());
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unsigned pixels = graph.width() - (16 + interval);
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nana::paint::text_renderer tr(graph);
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if (!wdg->enabled())
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{
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graph.palette(true, colors::white);
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tr.render({ 17 + interval, 2 }, title.c_str(), title.length(), pixels);
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graph.palette(true, static_cast<color_rgb>(0x808080));
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}
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else
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graph.palette(true, wdg->fgcolor());
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tr.render({ 16 + interval, 1 }, title.c_str(), title.length(), pixels);
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}
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//draw crook
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unsigned txt_px = 0, descent = 0, ileading = 0;
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graph.text_metrics(txt_px, descent, ileading);
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txt_px += (descent + 2);
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auto e_state = API::element_state(*wdg);
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if(!wdg->enabled())
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e_state = element_state::disabled;
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impl_->crook.draw(graph,
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impl_->scheme_ptr->square_bgcolor.get(wdg->bgcolor()), impl_->scheme_ptr->square_border_color.get(wdg->fgcolor()),
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rectangle(0, txt_px > 16 ? (txt_px - 16) / 2 : 0, 16, 16), e_state);
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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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refresh(graph);
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API::dev::lazy_refresh();
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}
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void drawer::mouse_up(graph_reference graph, const arg_mouse&)
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{
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if (impl_->react)
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{
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impl_->crook.reverse();
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arg_checkbox arg{ static_cast<nana::checkbox*>(impl_->widget_ptr) };
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API::events<nana::checkbox>(impl_->widget_ptr->handle()).checked.emit(arg, impl_->widget_ptr->handle());
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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 drawer::mouse_enter(graph_reference graph, const arg_mouse&)
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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 drawer::mouse_leave(graph_reference graph, const arg_mouse&)
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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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drawer::implement * drawer::impl() const
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{
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return impl_;
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}
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//end class drawer
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} //end namespace checkbox
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}//end namespace drawerbase
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//class checkbox
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checkbox::checkbox(){}
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checkbox::checkbox(window wd, bool visible)
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{
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create(wd, rectangle(), visible);
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bgcolor(API::bgcolor(wd));
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}
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checkbox::checkbox(window wd, const std::string& text, bool visible)
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{
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create(wd, rectangle(), visible);
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bgcolor(API::bgcolor(wd));
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caption(text);
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}
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checkbox::checkbox(window wd, const char* text, bool visible)
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: checkbox(wd, std::string(text), visible)
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{
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}
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checkbox::checkbox(window wd, const nana::rectangle& r, bool visible)
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{
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bgcolor(API::bgcolor(wd));
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create(wd, r, visible);
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}
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void checkbox::element_set(const char* name)
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{
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get_drawer_trigger().impl()->crook.switch_to(name);
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}
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void checkbox::react(bool want)
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{
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get_drawer_trigger().impl()->react = want;
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}
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bool checkbox::checked() const
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{
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return (get_drawer_trigger().impl()->crook.checked() != drawerbase::checkbox::crook_state::unchecked);
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}
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void checkbox::check(bool state)
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{
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using crook_state = drawerbase::checkbox::crook_state;
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if (checked() != state)
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{
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get_drawer_trigger().impl()->crook.check(state ? crook_state::checked : crook_state::unchecked);
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API::refresh_window(handle());
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arg_checkbox arg(this);
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this->events().checked.emit(arg, this->handle());
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}
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}
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void checkbox::radio(bool is_radio)
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{
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get_drawer_trigger().impl()->crook.radio(is_radio);
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API::refresh_window(handle());
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}
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void checkbox::transparent(bool enabled)
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{
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if(enabled)
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API::effects_bground(*this, effects::bground_transparent(0), 0.0);
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else
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API::effects_bground_remove(*this);
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API::refresh_window(handle());
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}
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bool checkbox::transparent() const
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{
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return API::is_transparent_background(*this);
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}
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//end class checkbox
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//class radio_group
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radio_group::~radio_group()
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{
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for(auto & e : ui_container_)
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{
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e.uiobj->radio(false);
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e.uiobj->react(true);
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API::umake_event(e.eh_checked);
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API::umake_event(e.eh_destroy);
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API::umake_event(e.eh_keyboard);
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}
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}
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void radio_group::add(checkbox& uiobj)
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{
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uiobj.radio(true);
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uiobj.check(false);
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uiobj.react(false);
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element_tag el;
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el.uiobj = &uiobj;
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uiobj.events().checked.connect_unignorable([this](const arg_checkbox& arg)
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{
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if (arg.widget->checked())
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{
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for (auto & ck : ui_container_)
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{
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if (ck.uiobj->handle() != arg.widget->handle())
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ck.uiobj->check(false);
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}
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}
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}, true);
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el.eh_checked = uiobj.events().click.connect_unignorable([this](const arg_click& arg)
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{
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for (auto & i : ui_container_)
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i.uiobj->check(arg.window_handle == i.uiobj->handle());
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}, true);
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el.eh_destroy = uiobj.events().destroy.connect_unignorable([this](const arg_destroy& arg)
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{
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for (auto i = ui_container_.begin(); i != ui_container_.end(); ++i)
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{
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if (arg.window_handle == i->uiobj->handle())
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{
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ui_container_.erase(i);
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return;
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}
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}
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});
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el.eh_keyboard = uiobj.events().key_press.connect_unignorable([this](const arg_keyboard& arg)
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{
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auto window_handle = arg.window_handle;
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auto i = std::find_if(ui_container_.begin(), ui_container_.end(), [window_handle](const element_tag& e){
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return (e.uiobj->handle() == window_handle);
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});
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if (ui_container_.end() == i)
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return;
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checkbox * target = nullptr;
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if (keyboard::os_arrow_up == arg.key)
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{
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if (ui_container_.begin() != i)
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target = (i - 1)->uiobj;
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else
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target = ui_container_.back().uiobj;
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}
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else if (keyboard::os_arrow_down == arg.key)
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{
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if (ui_container_.end() - 1 != i)
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target = (i + 1)->uiobj;
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else
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target = ui_container_.front().uiobj;
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}
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if(target)
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{
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target->check(true);
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target->focus();
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}
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});
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ui_container_.emplace_back(el);
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}
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std::size_t radio_group::checked() const
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{
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for (auto i = ui_container_.cbegin(); i != ui_container_.cend(); ++i)
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{
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if (i->uiobj->checked())
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return static_cast<std::size_t>(i - ui_container_.cbegin());
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}
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return npos;
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}
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std::size_t radio_group::size() const
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{
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return ui_container_.size();
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}
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//end class radio_group
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}//end namespace nana
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