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9a01d59822
Another code size improvement, and makes maintaining lists of menu items less stupid (you don't need to change the template arg when the item count changes).
100 lines
2.2 KiB
C++
100 lines
2.2 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __UI_MENU_H__
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#define __UI_MENU_H__
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#include "ui.hpp"
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#include "ui_widget.hpp"
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#include "ui_painter.hpp"
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#include <cstddef>
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#include <string>
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#include <functional>
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namespace ui {
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struct MenuItem {
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std::string text;
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std::function<void(void)> on_select;
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// TODO: Prevent default-constructed MenuItems.
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// I managed to construct a menu with three extra, unspecified menu items
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// in the array that were default constructed...
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};
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class MenuItemView : public Widget {
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public:
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MenuItemView(
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MenuItem item
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) : item(item)
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{
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}
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void paint(Painter& painter) override;
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void select();
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void highlight();
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void unhighlight();
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private:
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const MenuItem item;
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};
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class MenuView : public View {
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public:
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std::function<void(void)> on_left;
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MenuView() {
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set_focusable(true);
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}
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~MenuView();
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void add_item(const MenuItem item);
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void add_items(const std::initializer_list<MenuItem> items) {
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for(const auto& item : items) {
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add_item(item);
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}
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}
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void set_parent_rect(const Rect new_parent_rect) override;
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MenuItemView* item_view(size_t index) const;
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size_t highlighted() const;
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bool set_highlighted(const size_t new_value);
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void on_focus() override;
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void on_blur() override;
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bool on_key(const KeyEvent event) override;
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bool on_encoder(const EncoderEvent event) override;
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//bool on_touch(const TouchEvent event) override;
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private:
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size_t highlighted_ { 0 };
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};
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} /* namespace ui */
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#endif/*__UI_MENU_H__*/
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