832 lines
19 KiB
C++
832 lines
19 KiB
C++
/*
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* A Textbox 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/textbox.hpp
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* @contributors: Oleg Smolsky
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*/
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#include <nana/gui/widgets/textbox.hpp>
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#include <nana/gui/widgets/skeletons/text_editor.hpp>
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#include <stdexcept>
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namespace nana
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{
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arg_textbox::arg_textbox(textbox& wdg, const std::vector<upoint>& text_pos)
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: widget(wdg), text_position(text_pos)
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{}
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namespace drawerbase {
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namespace textbox
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{
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//class event_agent
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event_agent::event_agent(::nana::textbox& wdg, const std::vector<upoint>& text_pos)
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:widget_(wdg), text_position_(text_pos)
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{}
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void event_agent::first_change()
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{
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widget_.events().first_change.emit(::nana::arg_textbox{ widget_, text_position_ }, widget_);
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}
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void event_agent::text_changed()
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{
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widget_.events().text_changed.emit(::nana::arg_textbox{ widget_, text_position_ }, widget_);
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}
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void event_agent::text_exposed(const std::vector<upoint>& text_pos)
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{
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::nana::arg_textbox arg(widget_, text_pos);
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widget_.events().text_exposed.emit(arg, widget_);
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}
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//end class event_agent
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//class draweer
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drawer::drawer()
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: widget_(nullptr), editor_(nullptr)
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{
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}
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drawer::text_editor* drawer::editor()
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{
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return editor_;
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}
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const drawer::text_editor* drawer::editor() const
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{
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return editor_;
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}
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void drawer::attached(widget_reference wdg, graph_reference graph)
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{
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auto wd = wdg.handle();
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widget_ = &wdg;
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auto scheme = API::dev::get_scheme(wdg);
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editor_ = new text_editor(wd, graph, dynamic_cast<::nana::widgets::skeletons::text_editor_scheme*>(scheme));
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evt_agent_.reset(new event_agent(static_cast<::nana::textbox&>(wdg), editor_->text_position()));
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editor_->textbase().set_event_agent(evt_agent_.get());
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editor_->set_event(evt_agent_.get());
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_m_text_area(graph.width(), graph.height());
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API::tabstop(wd);
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API::eat_tabstop(wd, true);
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API::effects_edge_nimbus(wd, effects::edge_nimbus::active);
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API::effects_edge_nimbus(wd, effects::edge_nimbus::over);
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}
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void drawer::detached()
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{
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delete editor_;
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editor_ = nullptr;
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}
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void drawer::refresh(graph_reference)
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{
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editor_->render(API::is_focus_ready(*widget_));
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}
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void drawer::focus(graph_reference graph, const arg_focus& arg)
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{
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if (!editor_->focus_changed(arg))
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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_down(graph_reference, const arg_mouse& arg)
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{
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editor_->mouse_pressed(arg);
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if(editor_->try_refresh())
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API::dev::lazy_refresh();
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}
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void drawer::mouse_move(graph_reference, const arg_mouse& arg)
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{
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editor_->mouse_move(arg.left_button, arg.pos);
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if(editor_->try_refresh())
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API::dev::lazy_refresh();
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}
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void drawer::mouse_up(graph_reference, const arg_mouse& arg)
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{
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editor_->mouse_pressed(arg);
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if(editor_->try_refresh())
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API::dev::lazy_refresh();
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}
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void drawer::mouse_wheel(graph_reference, const arg_wheel& arg)
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{
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if(editor_->scroll(arg.upwards, true))
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{
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editor_->reset_caret();
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API::dev::lazy_refresh();
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}
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}
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void drawer::mouse_enter(graph_reference, const arg_mouse&)
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{
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if(editor_->mouse_enter(true))
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API::dev::lazy_refresh();
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}
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void drawer::mouse_leave(graph_reference, const arg_mouse&)
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{
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if(editor_->mouse_enter(false))
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API::dev::lazy_refresh();
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}
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//Added Windows-style mouse double-click to the textbox(https://github.com/cnjinhao/nana/pull/229)
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//Oleg Smolsky
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void drawer::dbl_click(graph_reference, const arg_mouse& arg)
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{
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if(editor_->select_word(arg))
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API::dev::lazy_refresh();
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}
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void drawer::key_press(graph_reference, const arg_keyboard& arg)
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{
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editor_->respond_key(arg);
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editor_->reset_caret(true);
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if(editor_->try_refresh())
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API::dev::lazy_refresh();
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}
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void drawer::key_char(graph_reference, const arg_keyboard& arg)
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{
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editor_->respond_char(arg);
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if(editor_->try_refresh())
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API::dev::lazy_refresh();
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}
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void drawer::resized(graph_reference graph, const arg_resized& arg)
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{
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_m_text_area(arg.width, arg.height);
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refresh(graph);
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editor_->reset_caret();
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if (!editor_->try_refresh())
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refresh(graph);
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API::dev::lazy_refresh();
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}
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void drawer::typeface_changed(graph_reference graph)
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{
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editor_->typeface_changed();
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refresh(graph);
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API::update_window(widget_->handle());
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}
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void drawer::_m_text_area(unsigned width, unsigned height)
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{
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if(editor_)
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{
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nana::rectangle r(0, 0, width, height);
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if (!API::widget_borderless(widget_->handle()))
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{
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r.x = r.y = 2;
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r.width = (width > 4 ? width - 4 : 0);
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r.height = (height > 4 ? height - 4 : 0);
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}
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editor_->text_area(r);
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}
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}
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//end class drawer
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}//end namespace textbox
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}//end namespace drawerbase
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//class textbox
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textbox::textbox()
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{}
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textbox::textbox(window wd, bool visible)
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{
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create(wd, rectangle(), visible);
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}
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textbox::textbox(window wd, const std::string& text, bool visible)
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{
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throw_not_utf8(text);
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create(wd, rectangle(), visible);
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caption(text);
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}
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textbox::textbox(window wd, const char* text, bool visible)
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{
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throw_not_utf8(text);
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create(wd, rectangle(), visible);
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caption(text);
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}
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textbox::textbox(window wd, const rectangle& r, bool visible)
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{
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create(wd, r, visible);
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}
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void textbox::load(std::string file)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor && editor->load(file.data()))
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{
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if (editor->try_refresh())
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API::update_window(handle());
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}
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}
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void textbox::store(std::string file)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor)
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editor->textbase().store(std::move(file), false, nana::unicode::utf8); //3rd parameter is just for syntax, it will be ignored
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}
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void textbox::store(std::string file, nana::unicode encoding)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor)
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editor->textbase().store(std::move(file), true, encoding);
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}
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textbox::colored_area_access_interface* textbox::colored_area_access()
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{
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auto editor = get_drawer_trigger().editor();
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if (editor)
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return &editor->colored_area();
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return nullptr;
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}
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point textbox::content_origin() const
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{
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auto editor = get_drawer_trigger().editor();
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if (editor)
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return editor->content_origin();
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return{};
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}
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/// Enables/disables the textbox to indent a line. Idents a new line when it is created by pressing enter.
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/// @param generator generates text for identing a line. If it is empty, textbox indents the line according to last line.
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textbox& textbox::indention(bool enb, std::function<std::string()> generator)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor)
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editor->indent(enb, generator);
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return *this;
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}
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textbox& textbox::reset(const std::string& str, bool end_caret)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor)
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{
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editor->text(to_wstring(str), false);
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if (end_caret)
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editor->move_caret_end(true);
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editor->textbase().reset();
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if (editor->try_refresh())
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API::update_window(this->handle());
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}
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return *this;
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}
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std::string textbox::filename() const
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if(editor)
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return editor->textbase().filename();
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return{};
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}
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bool textbox::edited() const
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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return (editor ? editor->textbase().edited() : false);
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}
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textbox& textbox::edited_reset()
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor)
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editor->textbase().edited_reset();
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return *this;
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}
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bool textbox::saved() const
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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return (editor ? editor->textbase().saved() : false);
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}
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bool textbox::getline(std::size_t line_index, std::string& text) const
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor)
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{
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std::wstring line_text;
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if (editor->getline(line_index, line_text))
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{
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text = to_utf8(line_text);
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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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bool textbox::getline(std::size_t line_index,std::size_t start_point,std::string& text) const
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if(editor)
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{
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std::wstring line_text;
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if(editor->getline(line_index,line_text))
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{
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if(line_text.length() >= start_point)
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{
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text = to_utf8(line_text.substr(start_point));
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return true;
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}
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}
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}
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return false;
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}
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/// Gets the caret position
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bool textbox::caret_pos(point& pos, bool text_coordinate) const
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{
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auto editor = get_drawer_trigger().editor();
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internal_scope_guard lock;
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if (!editor)
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return false;
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auto scr_pos = editor->caret_screen_pos();
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if (text_coordinate)
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{
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auto upos = editor->caret();
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pos.x = static_cast<int>(upos.x);
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pos.y = static_cast<int>(upos.y);
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}
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else
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pos = scr_pos;
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return editor->hit_text_area(scr_pos);
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}
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upoint textbox::caret_pos() const
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{
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auto editor = get_drawer_trigger().editor();
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internal_scope_guard lock;
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if (editor)
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return editor->caret();
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return{};
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}
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textbox& textbox::caret_pos(const upoint& pos)
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{
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auto editor = get_drawer_trigger().editor();
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internal_scope_guard lock;
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if (editor && editor->move_caret(pos, true))
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API::refresh_window(handle());
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return *this;
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}
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textbox& textbox::append(const std::string& text, bool at_caret)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if(editor)
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{
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if(at_caret == false)
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editor->move_caret_end(false);
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editor->put(to_wstring(text), true);
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editor->try_refresh();
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API::update_window(this->handle());
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}
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return *this;
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}
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//a native wstring version textbox::append
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textbox& textbox::append(const std::wstring& text, bool at_caret)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if(editor)
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{
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if(at_caret == false)
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editor->move_caret_end(false);
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editor->put(text, true);
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editor->try_refresh();
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API::update_window(this->handle());
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}
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return *this;
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}
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/// Determine wheter the text is auto-line changed.
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bool textbox::line_wrapped() const
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{
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internal_scope_guard lock;
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return get_drawer_trigger().editor()->attr().line_wrapped;
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}
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textbox& textbox::line_wrapped(bool autl)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor && editor->line_wrapped(autl))
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{
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editor->try_refresh();
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API::update_window(handle());
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}
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return *this;
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}
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bool textbox::multi_lines() const
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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return (editor ? editor->attr().multi_lines : false);
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}
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textbox& textbox::multi_lines(bool ml)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor && editor->multi_lines(ml))
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{
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auto wd = handle();
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API::eat_tabstop(wd, ml); //textbox handles the Tab pressing when it is multi-line.
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editor->try_refresh();
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API::update_window(wd);
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}
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return *this;
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}
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bool textbox::editable() const
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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return (editor ? editor->attr().editable : false);
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}
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textbox& textbox::editable(bool able)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if(editor)
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editor->editable(able, false);
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return *this;
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}
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textbox& textbox::enable_caret()
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor)
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editor->editable(editor->attr().editable, true);
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return *this;
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}
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void textbox::set_accept(std::function<bool(wchar_t)> fn)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if(editor)
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editor->set_accept(std::move(fn));
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}
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textbox& textbox::tip_string(std::string str)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if(editor && editor->tip_string(std::move(str)))
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API::refresh_window(handle());
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return *this;
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}
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textbox& textbox::mask(wchar_t ch)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if(editor && editor->mask(ch))
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API::refresh_window(handle());
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return *this;
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}
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bool textbox::selected() const
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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return (editor ? editor->selected() : false);
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}
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bool textbox::get_selected_points(nana::upoint &a, nana::upoint &b) const
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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return (editor ? editor->get_selected_points(a, b) : false);
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}
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void textbox::select(bool yes)
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{
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if(editor && editor->select(yes))
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API::refresh_window(*this);
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}
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std::pair<upoint, upoint> textbox::selection() const
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{
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std::pair<upoint, upoint> points;
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internal_scope_guard lock;
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auto editor = get_drawer_trigger().editor();
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if (editor)
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editor->get_selected_points(points.first, points.second);
|
|
|
|
return points;
|
|
}
|
|
|
|
void textbox::copy() const
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if(editor)
|
|
editor->copy();
|
|
}
|
|
|
|
void textbox::paste()
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if(editor)
|
|
{
|
|
editor->paste();
|
|
if (editor->try_refresh())
|
|
API::update_window(*this);
|
|
}
|
|
}
|
|
|
|
void textbox::del()
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if(editor)
|
|
{
|
|
editor->del();
|
|
API::refresh_window(*this);
|
|
}
|
|
}
|
|
|
|
int textbox::to_int() const
|
|
{
|
|
auto s = _m_caption();
|
|
if (s.empty()) return 0;
|
|
|
|
return std::stoi(s, nullptr, 0);
|
|
}
|
|
|
|
double textbox::to_double() const
|
|
{
|
|
auto s = _m_caption();
|
|
if (s.empty()) return 0;
|
|
|
|
return std::stod(s);
|
|
}
|
|
|
|
textbox& textbox::from(int n)
|
|
{
|
|
_m_caption(to_nstring(n));
|
|
return *this;
|
|
}
|
|
|
|
textbox& textbox::from(double d)
|
|
{
|
|
_m_caption(to_nstring(d));
|
|
return *this;
|
|
}
|
|
|
|
void textbox::clear_undo()
|
|
{
|
|
get_drawer_trigger().editor()->clear_undo();
|
|
}
|
|
|
|
void textbox::set_highlight(const std::string& name, const ::nana::color& fgcolor, const ::nana::color& bgcolor)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
{
|
|
editor->set_highlight(name, fgcolor, bgcolor);
|
|
API::refresh_window(handle());
|
|
}
|
|
}
|
|
|
|
void textbox::erase_highlight(const std::string& name)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
{
|
|
editor->erase_highlight(name);
|
|
API::refresh_window(handle());
|
|
}
|
|
}
|
|
|
|
void textbox::set_keywords(const std::string& name, bool case_sensitive, bool whole_word_match, std::initializer_list<std::wstring> kw_list)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
{
|
|
for (auto & kw : kw_list)
|
|
editor->set_keyword(kw, name, case_sensitive, whole_word_match);
|
|
API::refresh_window(handle());
|
|
}
|
|
}
|
|
|
|
void textbox::set_keywords(const std::string& name, bool case_sensitive, bool whole_word_match, std::initializer_list<std::string> kw_list_utf8)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
{
|
|
for (auto & kw : kw_list_utf8)
|
|
editor->set_keyword(::nana::charset(kw, ::nana::unicode::utf8), name, case_sensitive, whole_word_match);
|
|
API::refresh_window(handle());
|
|
}
|
|
}
|
|
|
|
void textbox::erase_keyword(const std::string& kw)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
{
|
|
editor->erase_keyword(to_wstring(kw));
|
|
API::refresh_window(handle());
|
|
}
|
|
}
|
|
|
|
textbox& textbox::text_align(::nana::align alignment)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
{
|
|
editor->text_align(alignment);
|
|
API::refresh_window(handle());
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
std::vector<upoint> textbox::text_position() const
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
return editor->text_position();
|
|
|
|
return{};
|
|
}
|
|
|
|
rectangle textbox::text_area() const
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
return editor->text_area(false);
|
|
|
|
return{};
|
|
}
|
|
|
|
unsigned textbox::line_pixels() const
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
return (editor ? editor->line_height() : 0);
|
|
}
|
|
|
|
void textbox::focus_behavior(text_focus_behavior behavior)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
editor->focus_behavior(behavior);
|
|
}
|
|
|
|
void textbox::select_behavior(bool move_to_end)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
editor->select_behavior(move_to_end);
|
|
}
|
|
|
|
void textbox::set_undo_queue_length(std::size_t len)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
editor->set_undo_queue_length(len);
|
|
}
|
|
|
|
std::size_t textbox::display_line_count() const noexcept
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
return editor->line_count(false);
|
|
|
|
return 0;
|
|
}
|
|
|
|
std::size_t textbox::text_line_count() const noexcept
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
return editor->line_count(true);
|
|
|
|
return 0;
|
|
}
|
|
|
|
//Override _m_caption for caption()
|
|
auto textbox::_m_caption() const noexcept -> native_string_type
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
return to_nstring(editor->text());
|
|
|
|
return native_string_type();
|
|
}
|
|
|
|
void textbox::_m_caption(native_string_type&& str)
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
{
|
|
editor->text(to_wstring(str), false);
|
|
|
|
if (editor->try_refresh())
|
|
API::update_window(this->handle());
|
|
}
|
|
}
|
|
|
|
//Override _m_typeface for changing the caret
|
|
void textbox::_m_typeface(const nana::paint::font& font)
|
|
{
|
|
widget::_m_typeface(font);
|
|
auto editor = get_drawer_trigger().editor();
|
|
if(editor)
|
|
editor->reset_caret_pixels();
|
|
}
|
|
|
|
std::shared_ptr<scroll_operation_interface> textbox::_m_scroll_operation()
|
|
{
|
|
internal_scope_guard lock;
|
|
auto editor = get_drawer_trigger().editor();
|
|
if (editor)
|
|
return editor->scroll_operation();
|
|
|
|
return {};
|
|
}
|
|
//end class textbox
|
|
}//end namespace nana
|
|
|