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////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2018 Leo Tenenbaum
// This file is part of GraphColoring.
//
// GraphColoring is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GraphColoring is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with GraphColoring. If not, see <https://www.gnu.org/licenses/>.
////////////////////////////////////////////////////////////////////////////////
#ifndef GRAPHCOLORING_LEVELSELECT_H_
#define GRAPHCOLORING_LEVELSELECT_H_
#include <memory>
#include "gui/gui.hpp"
#include "pugi/pugixml.hpp"
namespace graphcoloring {
class LevelSelect
{
public:
typedef std::function<void(std::string,std::string)> level_click_callback_t;
LevelSelect(gui::Window* window,
level_click_callback_t level_click_callback);
virtual ~LevelSelect() {}
static const char* const LEVEL_LISTING_PATH;
private:
void Scroll(int direction); // -1 for up, +1 for down
void ReadCategories();
pugi::xml_object_range<pugi::xml_named_node_iterator> GetCategories();
void ButtonClicked(std::string category_id, std::string level_id);
void MakeLevelButtons();
void Render();
void RenderCategoryLabels();
static constexpr double LEVEL_CIRCLE_RADIUS = 0.06; // As a percentage of min(width, height)
static constexpr double LEVEL_CIRCLE_PADDING = 0.03;
static constexpr double TEXT_SIZE = 0.06;
static constexpr double COMPLETED_SHADE = 0.7; // How much to shade completed levels
static constexpr int LEVELS_PER_ROW = 7;
gui::Window* const window;
pugi::xml_document category_listing;
int total_points;
std::map<std::string, double> categories_y_positions;
level_click_callback_t level_click_callback;
std::vector<std::unique_ptr<gui::Button>> buttons;
gui::Size min_dimension_both; // min_dimension_both.x,y = min(window width, window height)
gui::Size min_dimension_y; // min_dimension_y.x = window width, .y = min(window width, window height)
gui::Position scroll_position;
int lowest_y; // Lowest y position of bottom of level circle. Used for calculating maximum scroll down.
};
} // namespace graphcoloring
#endif // GRAPHCOLORING_LEVELSELECT_H_
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