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/*
* Copyright (c) 2020-2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include "Engine.h"
#include <AK/HashMap.h>
#include <AK/NonnullRefPtr.h>
#include <AK/Optional.h>
#include <LibChess/Chess.h>
#include <LibGUI/Frame.h>
#include <LibGfx/Bitmap.h>
class ChessWidget final : public GUI::Frame {
C_OBJECT(ChessWidget);
public:
virtual ~ChessWidget() override = default;
virtual void paint_event(GUI::PaintEvent&) override;
virtual void mousedown_event(GUI::MouseEvent&) override;
virtual void mouseup_event(GUI::MouseEvent&) override;
virtual void mousemove_event(GUI::MouseEvent&) override;
virtual void keydown_event(GUI::KeyEvent&) override;
Chess::Board& board() { return m_board; };
const Chess::Board& board() const { return m_board; };
Chess::Board& board_playback() { return m_board_playback; };
const Chess::Board& board_playback() const { return m_board_playback; };
Chess::Color side() const { return m_side; };
void set_side(Chess::Color side) { m_side = side; };
void set_piece_set(StringView set);
const String& piece_set() const { return m_piece_set; };
Chess::Square mouse_to_square(GUI::MouseEvent& event) const;
bool drag_enabled() const { return m_drag_enabled; }
void set_drag_enabled(bool e) { m_drag_enabled = e; }
RefPtr<Gfx::Bitmap> get_piece_graphic(const Chess::Piece& piece) const;
bool show_available_moves() const { return m_show_available_moves; }
void set_show_available_moves(bool e) { m_show_available_moves = e; }
String get_fen() const;
bool import_pgn(StringView import_path);
bool export_pgn(StringView export_path) const;
int resign();
void flip_board();
void reset();
struct BoardTheme {
String name;
Color dark_square_color;
Color light_square_color;
};
const BoardTheme& board_theme() const { return m_board_theme; }
void set_board_theme(const BoardTheme& theme) { m_board_theme = theme; }
void set_board_theme(StringView name);
enum class PlaybackDirection {
First,
Backward,
Forward,
Last
};
void playback_move(PlaybackDirection);
void set_engine(RefPtr<Engine> engine) { m_engine = engine; }
void input_engine_move();
bool want_engine_move();
void set_coordinates(bool coordinates) { m_coordinates = coordinates; }
bool coordinates() const { return m_coordinates; }
struct BoardMarking {
Chess::Square from { 50, 50 };
Chess::Square to { 50, 50 };
bool alternate_color { false };
bool secondary_color { false };
enum class Type {
Square,
Arrow,
None
};
Type type() const
{
if (from.in_bounds() && to.in_bounds() && from != to)
return Type::Arrow;
else if ((from.in_bounds() && !to.in_bounds()) || (from.in_bounds() && to.in_bounds() && from == to))
return Type::Square;
return Type::None;
}
bool operator==(const BoardMarking& other) const { return from == other.from && to == other.to; }
};
private:
ChessWidget();
Chess::Board m_board;
Chess::Board m_board_playback;
bool m_playback { false };
size_t m_playback_move_number { 0 };
BoardMarking m_current_marking;
Vector<BoardMarking> m_board_markings;
BoardTheme m_board_theme { "Beige", Color::from_rgb(0xb58863), Color::from_rgb(0xf0d9b5) };
Color m_move_highlight_color { Color::from_rgba(0x66ccee00) };
Color m_marking_primary_color { Color::from_rgba(0x66ff0000) };
Color m_marking_alternate_color { Color::from_rgba(0x66ffaa00) };
Color m_marking_secondary_color { Color::from_rgba(0x6655dd55) };
Chess::Color m_side { Chess::Color::White };
HashMap<Chess::Piece, RefPtr<Gfx::Bitmap>> m_pieces;
String m_piece_set;
Chess::Square m_moving_square { 50, 50 };
Gfx::IntPoint m_drag_point;
bool m_dragging_piece { false };
bool m_drag_enabled { true };
bool m_show_available_moves { true };
Vector<Chess::Square> m_available_moves;
RefPtr<Engine> m_engine;
bool m_coordinates { true };
};
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