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src/game_tab/Game.cpp

@@ -0,0 +1,143 @@
+#include "Game.hpp"
+
+Game::Game() : current(NULL), moves(NULL) {
+  tags["White"] = "";
+  tags["Black"] = "";
+  initial_fen = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1";
+  board = "rnbqkbnrpppppppp                                PPPPPPPPRNBQKBNR";
+}
+
+Game::Game(std::string fen) : current(NULL), moves(NULL) {
+  tags["White"] = "";
+  tags["Black"] = "";
+  tags["FEN"] = fen;
+  initial_fen = fen;
+  board = chessarbiter::FENParser::Parse(fen).board;
+}
+
+Game::Game(HalfMove *m) {
+  moves = m;
+  current = m;
+  initial_fen = m->GetFen();
+  board = chessarbiter::FENParser::Parse(initial_fen).board;
+}
+
+std::string Game::GetBoard() { return (board); }
+
+std::string Game::GetTag(std::string tagname) { return (tags[tagname]); }
+
+void Game::SetTag(std::string tagname, std::string value) {
+  tags[tagname] = value;
+}
+bool Game::IsBlackToPlay() {
+  if (current == NULL) {
+    return (false);
+  }
+  return (!current->IsBlack);
+}
+
+void Game::DeleteTag(std::string tagname) { tags.erase(tagname); }
+
+void Game::DeleteMove(HalfMove *m) {
+  if (moves == m) {
+    current = NULL;
+    moves = NULL;
+    delete m;
+  } else {
+    if (m != NULL) {
+      current = m->GetParent();
+      if (current != NULL) {
+        current->RemoveChild(m);
+      }
+      delete m;
+    }
+  }
+}
+
+HalfMove *Game::GetCurrentMove() { return (current); }
+HalfMove *Game::GetMoves() { return (moves); }
+
+void Game::PromoteMove(HalfMove *m) {
+  if (m != NULL) {
+    current = m;
+    m->Promote();
+  }
+}
+
+void Game::SetMoveAsMainline(HalfMove *m) {
+  if (m != NULL) {
+    current = m;
+    m->SetAsMainline();
+  }
+}
+
+bool Game::Play(std::string move) {
+  wxLogDebug("Playing move %s", move);
+  std::string fen = GetFen();
+  arbiter.Setup(fen);
+  if (arbiter.Play(move)) {
+    HalfMove *m = new HalfMove(arbiter.GetSAN(), arbiter.GetFEN());
+    char capture = arbiter.GetCapture();
+    if (capture != ' ') {
+      wxLogDebug("%c", capture);
+      m->SetCapture(capture);
+    }
+    if (current != NULL) {
+      current->AddMove(m);
+    } else if (moves != NULL) {
+      moves->AddVariation(m);
+    }
+    current = m;
+    if (moves == NULL) {
+      moves = m;
+    }
+    wxLogDebug("%s",GetPGN());
+    return (true);
+  }
+  return (false);
+}
+
+void Game::Previous() {
+  if (current != NULL) {
+    current = current->GetParent();
+  }
+}
+
+std::vector<std::string> Game::ListTags() {
+  std::vector<std::string> keys;
+  for (auto const &element : tags) {
+    keys.push_back(element.first);
+  }
+  return (keys);
+}
+
+void Game::Next() {
+  if (current != NULL) {
+    HalfMove *m = current->GetMainline();
+    if (m != NULL) {
+      current = m;
+    }
+  } else {
+    current = moves;
+  }
+}
+
+void Game::SetCurrent(HalfMove *m) { current = m; }
+
+std::string Game::GetFen() {
+  if (current == NULL) {
+    return (initial_fen);
+  }
+  return (current->GetFen());
+}
+
+std::string Game::GetPGN() {
+  std::string pgn;
+  if (moves != NULL) {
+    for (auto const &element : tags) {
+      pgn += '[' + element.first + " \"" + element.second + "\"]\n";
+    }
+    pgn += moves->GetPGN();
+  }
+  return (pgn);
+}

src/game_tab/Game.hpp

@@ -0,0 +1,38 @@
+#pragma once
+
+#include "ChessArbiter.hpp"
+#include "HalfMove.hpp"
+#include "ochess.hpp"
+#include <unordered_map>
+
+class Game {
+  std::string board;
+  std::string initial_fen;
+  std::unordered_map<std::string, std::string> tags;
+  HalfMove *moves;
+  HalfMove *current;
+  chessarbiter::ChessArbiter arbiter;
+
+public:
+  Game();
+  Game(std::string fen);
+  Game(HalfMove *m);
+
+  std::string GetBoard();
+  std::string GetTag(std::string tagname);
+  void SetTag(std::string tagname, std::string value);
+  void DeleteTag(std::string tagname);
+  HalfMove *GetCurrentMove();
+  HalfMove *GetMoves();
+  std::string GetFen();
+  bool Play(std::string move);
+  bool IsBlackToPlay();
+  void Previous();
+  void Next();
+  void DeleteMove(HalfMove *m);
+  void PromoteMove(HalfMove *m);
+  void SetMoveAsMainline(HalfMove *m);
+  void SetCurrent(HalfMove *m);
+  std::vector<std::string> ListTags();
+  std::string GetPGN();
+};

src/game_tab/GameTab.cpp

@@ -0,0 +1,52 @@
+#include "GameTab.hpp"
+#include <wx/clipbrd.h>
+
+wxDEFINE_EVENT(GAME_CHANGE, wxCommandEvent);
+
+GameTab::GameTab(wxFrame *parent, Game *game)
+    : wxPanel(parent), game(game), TabInfos(TabInfos::GAME) {
+  // Splitter
+  wxSplitterWindow *splitter = new wxSplitterWindow(this, wxID_ANY);
+  splitter->SetMinimumPaneSize(100);
+
+  // Panels
+  board_panel = new BoardPanel((wxFrame *)splitter, game);
+  editor_panel = new EditorPanel((wxFrame *)splitter, game);
+  splitter->SplitVertically(board_panel, editor_panel);
+
+  // Setup splitter
+  wxBoxSizer *topSizer = new wxBoxSizer(wxHORIZONTAL);
+  topSizer->Add(splitter, 1, wxEXPAND);
+  SetSizerAndFit(topSizer);
+
+  // Refresh panels
+  wxCommandEvent event(REFRESH_TAB_TITLE, GetId());
+  event.SetEventObject(this);
+  OnRefreshTabTitle(event);
+  board_panel->Notify();
+  editor_panel->Notify();
+
+  Bind(REFRESH_TAB_TITLE, &GameTab::OnRefreshTabTitle, this, wxID_ANY);
+  Bind(GAME_CHANGE, &GameTab::OnGameChange, this, wxID_ANY);
+}
+
+void GameTab::OnGameChange(wxCommandEvent &event) {
+  board_panel->Notify();
+  editor_panel->Notify();
+}
+
+void GameTab::OnRefreshTabTitle(wxCommandEvent &event) {
+  std::string white = game->GetTag("White");
+  std::string black = game->GetTag("Black");
+  if (white.size() == 0 && black.size() == 0) {
+    SetLabel("New Game");
+  } else {
+    SetLabel(white + "-" + black);
+  }
+  event.SetEventObject(this);
+  event.Skip();
+}
+
+void GameTab::ApplyPreferences() {
+  board_panel->ApplyPreferences();
+}

src/game_tab/GameTab.hpp

@@ -0,0 +1,28 @@
+#pragma once
+#include "ChessArbiter.hpp"
+#include "Game.hpp"
+#include "HalfMove.hpp"
+#include "board/BoardPanel.hpp"
+#include "editor/EditorPanel.hpp"
+#include "ochess.hpp"
+#include <utility>
+#include <wx/collpane.h>
+#include <wx/splitter.h>
+#include <wx/textctrl.h>
+
+wxDECLARE_EVENT(REFRESH_TAB_TITLE, wxCommandEvent);
+wxDECLARE_EVENT(GAME_CHANGE, wxCommandEvent);
+
+
+class GameTab : public wxPanel, public TabInfos {
+  EditorPanel *editor_panel;
+  BoardPanel *board_panel;
+  Game *game;
+  void RefreshLabel();
+  void OnRefreshTabTitle(wxCommandEvent &event);
+  void OnGameChange(wxCommandEvent &event);
+public:
+  GameTab(wxFrame *parent, Game *game);
+  void ApplyPreferences();
+
+};

src/game_tab/HalfMove.cpp

@@ -0,0 +1,213 @@
+#include "HalfMove.hpp"
+
+HalfMove::HalfMove(std::string move) : capture(' ') {
+  this->move = move;
+  fen = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1";
+}
+
+HalfMove::HalfMove(std::string move, std::string fen) : fen(fen), capture(' ') {
+  this->move = move;
+}
+
+HalfMove::~HalfMove() {
+  for (HalfMove *m : variations) {
+    delete m;
+  }
+}
+
+void HalfMove::AddVariation(HalfMove *m) {
+  m->IsBlack = this->IsBlack;
+  m->Number = this->Number;
+  HalfMove::variations.push_back(m);
+  cgeditor::CGEHalfMove::variations.push_back(m);
+  m->SetParent(this);
+}
+
+std::map<char, std::uint8_t> HalfMove::GetLineCaptures() {
+  std::map<char, std::uint8_t> captures;
+  HalfMove *m = this;
+  do {
+    char c = m->capture;
+    if (captures.find(c) != captures.end()) {
+      captures[c]++;
+    } else {
+      captures[c] = 1;
+    }
+    m = m->parent;
+  } while (m != NULL);
+  return (captures);
+}
+
+void HalfMove::SetCapture(char c) { capture = c; }
+
+void HalfMove::AddMove(HalfMove *m) {
+  if (this->mainline == NULL) {
+    SetMainline(m);
+  } else {
+    if (mainline != NULL) {
+      mainline->AddVariation(m);
+    }
+  }
+}
+
+void HalfMove::SetMainline(HalfMove *m) {
+  if (!this->IsBlack) {
+    m->IsBlack = true;
+    m->Number = this->Number;
+  } else {
+    m->IsBlack = false;
+    m->Number = this->Number + 1;
+  }
+  HalfMove::mainline = m;
+  cgeditor::CGEHalfMove::MainLine = m;
+  if (m != NULL) {
+    m->SetParent(this);
+  }
+}
+
+void HalfMove::SetParent(HalfMove *m) {
+  HalfMove::parent = m;
+  CGEHalfMove::Parent = m;
+}
+
+void HalfMove::RemoveChild(HalfMove *m) {
+  std::uint32_t i = 0;
+  bool found = false;
+  for (i; i < HalfMove::variations.size(); i++) {
+    if (HalfMove::variations[i] == m) {
+      found = true;
+      break;
+    }
+  }
+  if (found) {
+    HalfMove::variations.erase(HalfMove::variations.begin() + i);
+  }
+  if (HalfMove::mainline == m) {
+    HalfMove::mainline = NULL;
+  }
+  cgeditor::CGEHalfMove::RemoveChild((CGEHalfMove *)m);
+}
+
+HalfMove *HalfMove::GetParent() { return (parent); }
+
+HalfMove *HalfMove::GetRoot() {
+  HalfMove *m = this;
+  HalfMove *p = HalfMove::parent;
+  while (p != NULL) {
+    if (p->mainline != m) {
+      return (m);
+    }
+    m = p;
+    p = m->HalfMove::parent;
+  }
+  return (m);
+}
+
+void HalfMove::SetAsMainline() {
+  HalfMove *root = GetRoot();
+  HalfMove *lastRoot;
+  do {
+    lastRoot = root;
+    root->HalfMove::Promote();
+    root = GetRoot();
+  } while (root != lastRoot);
+}
+
+HalfMove *HalfMove::GetMainline() { return (mainline); }
+
+HalfMove::HalfMove(pgnp::HalfMove *m, std::string initial_fen) {
+  chessarbiter::ChessArbiter arbiter;
+  arbiter.Setup(initial_fen);
+  arbiter.Play(arbiter.ParseSAN(m->move));
+  this->fen = arbiter.GetFEN();
+  this->move = m->move;
+  this->IsBlack = m->isBlack;
+  this->SetComment(m->comment);
+  this->Number = m->count;
+  if (m->MainLine != NULL) {
+    this->SetMainline(new HalfMove(m->MainLine, arbiter.GetFEN()));
+  }
+  for (pgnp::HalfMove *v : m->variations) {
+    arbiter.Setup(initial_fen);
+    arbiter.Play(arbiter.ParseSAN(v->move));
+    this->AddVariation(new HalfMove(v, arbiter.GetFEN()));
+  }
+}
+
+void HalfMove::SetFen(std::string fen) { this->fen = fen; }
+
+void HalfMove::Promote() {
+  HalfMove *root = GetRoot();
+  if (root->parent != NULL) {
+    HalfMove *p = root->parent;
+    if (p->HalfMove::mainline != root) {
+      if (root->parent->HalfMove::parent != NULL) {
+        HalfMove *pp = root->parent->HalfMove::parent;
+        if (pp->HalfMove::mainline == p) {
+          pp->HalfMove::SetMainline(root);
+        } else {
+          pp->AddVariation(root);
+          pp->HalfMove::RemoveChild(p);
+        }
+      }
+      if (p->HalfMove::mainline == root) {
+        p->HalfMove::SetMainline(NULL);
+      } else {
+        p->HalfMove::RemoveChild(root);
+      }
+      root->AddVariation(p);
+    }
+  }
+}
+
+bool HalfMove::IsVariation() {
+  HalfMove *m = this;
+  HalfMove *p = HalfMove::parent;
+  while (p != NULL) {
+    if (p->mainline != m) {
+      return (true);
+    }
+    m = p;
+    p = m->HalfMove::parent;
+  }
+  return (false);
+}
+
+std::string HalfMove::GetFen() { return (fen); }
+
+std::string HalfMove::GetPGN() { return (GetPGN(IsBlack)); }
+
+std::string HalfMove::GetPGN(bool needDots) {
+  std::string part;
+  bool newNeedDots = false;
+
+  if (!IsBlack || needDots) {
+    part += std::to_string(Number) + ".";
+    if (needDots) {
+      part += "..";
+    }
+  }
+  part += move;
+
+  if (GetNbLineComment() > 0) {
+    part += " {";
+    part += GetComment();
+    part += "}";
+    newNeedDots = true;
+  }
+
+  if (variations.size() > 0) {
+    newNeedDots = true;
+    for (HalfMove *v : variations) {
+      part += " (";
+      part += v->GetPGN(IsBlack);
+      part += ")";
+    }
+  }
+
+  if (mainline != NULL) {
+    part += " " + mainline->GetPGN(newNeedDots);
+  }
+
+  return (part);
+}

src/game_tab/HalfMove.hpp

@@ -0,0 +1,57 @@
+#pragma once
+#include "CGEditor.hpp"
+#include "ChessArbiter.hpp"
+#include "ochess.hpp"
+#include "pgnp.hpp"
+#include <map>
+#include <vector>
+
+/**
+ * @brief Create your custom half move class
+ *
+ * The implementation of the class should give you
+ * an overview of how to keep your move sync with the one of CGEditor
+ *
+ */
+class HalfMove : public cgeditor::CGEHalfMove {
+  HalfMove *parent = NULL;
+  HalfMove *mainline = NULL;
+  std::vector<HalfMove *> variations;
+  std::string fen;
+  char capture;
+  std::string GetPGN(bool needDots);
+
+public:
+  HalfMove(std::string move);
+  HalfMove(std::string move, std::string fen);
+  HalfMove(pgnp::HalfMove *m, std::string initial_fen);
+
+  ~HalfMove();
+  /// @brief Add variation to current move
+  void AddVariation(HalfMove *m);
+  /// @brief Remove the specified child from mainline and/or variations
+  void RemoveChild(HalfMove *m);
+  void AddMove(HalfMove *m);
+  /// @brief Set value of the mailine
+  void SetMainline(HalfMove *m);
+  /// @brief Set this move as mainline
+  void SetAsMainline();
+  /// @brief Promote the current move and submove
+  void Promote();
+  /// @brief Check if current half move is within a variation
+  bool IsVariation();
+  /// @brief Get the root of a variation
+  HalfMove *GetRoot();
+  /// @brief Get parent of the current move
+  HalfMove *GetParent();
+  HalfMove *GetMainline();
+  std::map<char, std::uint8_t> GetLineCaptures();
+
+  /// @brief Set parent of the current move
+  void SetParent(HalfMove *m);
+  std::string GetFen();
+  void SetFen(std::string fen);
+  void SetCapture(char c);
+  std::string GetPGN();
+};
+

src/game_tab/board/BoardCanvas.cpp

@@ -0,0 +1,294 @@
+#include "BoardCanvas.hpp"
+
+wxDEFINE_EVENT(PLAY_MOVE_EVENT, wxCommandEvent);
+
+BoardCanvas::BoardCanvas(wxFrame *parent)
+    : wxPanel(parent), black_side(false), is_black_turn(true), frozen(false),
+      lock_square_size(false), t(new Theme()), t_captures(new Theme()) {
+  board = "rnbqkbnrpppppppp                                PPPPPPPPRNBQKBNR";
+  is_dragging = false;
+  valid_drag = false;
+  t_captures->ResizePieces(t->GetPiecesSizes() * CAPTURE_FACTOR);
+  SetClockTime(-1, -1, -1, false);
+  SetClockTime(-1, -1, -1, true);
+  ApplyPreferences();
+}
+
+BoardCanvas::BoardCanvas(wxFrame *parent, std::uint32_t square_width,
+                         bool frozen)
+    : BoardCanvas(parent) {
+  t->ResizeSquaresAndPieces(square_width);
+  t_captures->ResizePieces(t->GetPiecesSizes() * CAPTURE_FACTOR);
+  this->frozen = true;
+  lock_square_size = true;
+}
+
+void BoardCanvas::OnPaint(wxPaintEvent &event) {
+  wxPaintDC dc(this);
+  REFRESH_MOUSE_LOCATION();
+  square_width = t->GetSquaresSizes();
+  canvas_size = dc.GetSize();
+  boardX = (canvas_size.x - (8 * square_width)) / 2;
+  boardY = (canvas_size.y - (8 * square_width)) / 2;
+  if (boardX > canvas_size.x)
+    boardX = 0;
+  if (boardY > canvas_size.y)
+    boardY = 0;
+  DrawBoard(dc);
+}
+
+void BoardCanvas::ApplyPreferences() {
+  if (t != NULL)
+    delete t;
+  if (t_captures != NULL)
+    delete t_captures;
+  t = new Theme();
+  t_captures = new Theme();
+
+  CONFIG_OPEN(config);
+  black_side = config->Read("board/black_by_default", false);
+  if (lock_square_size) {
+    t->ResizeSquaresAndPieces(square_width);
+  } else {
+    t->ResizeSquaresAndPieces(config->Read("board/square_size", 80));
+  }
+  t->SetSquareRadius(config->Read("board/corner_radius", 10));
+  t_captures->ResizePieces(t->GetPiecesSizes() * CAPTURE_FACTOR);
+  CONFIG_CLOSE(config);
+
+  Refresh();
+}
+
+void BoardCanvas::SetupBoard(std::string board, bool is_black_turn,
+                             std::map<char, std::uint8_t> captures) {
+  this->board = board;
+  this->is_black_turn = is_black_turn;
+  this->captures = captures;
+  Refresh();
+}
+
+void BoardCanvas::DrawBoard(wxPaintDC &dc) {
+  std::uint32_t piece_width = t->GetPiecesSizes();
+  std::uint32_t centrer_offset = (square_width - piece_width) / 2;
+
+  bool DrawDraggingPiece = false;
+  char dp = 'p';
+  std::uint32_t dpx = 0, dpy = 0;
+  for (std::int8_t file = 7; file >= 0; file--) {
+    for (std::uint8_t rank = 0; rank <= 7; rank++) {
+      std::uint32_t x = boardX + (7 - file) * square_width;
+      std::uint32_t y = boardY + rank * square_width;
+      if ((file + rank) % 2 == 0) {
+        if (file == 0 && rank == 0) {
+          dc.DrawBitmap(*t->Get('1'), x, y, true);
+        } else if (file == 7 && rank == 7) {
+          dc.DrawBitmap(*t->Get('2'), x, y, true);
+        } else {
+          dc.DrawBitmap(*t->Get('s'), x, y, true);
+        }
+      } else {
+        if (file == 7 && rank == 0) {
+          dc.DrawBitmap(*t->Get('0'), x, y, true);
+        } else if (file == 0 && rank == 7) {
+          dc.DrawBitmap(*t->Get('3'), x, y, true);
+        } else {
+          dc.DrawBitmap(*t->Get('S'), x, y, true);
+        }
+      }
+
+      std::uint8_t prank = rank;
+      std::uint8_t pfile = file;
+      if (black_side) {
+        prank = 7 - rank;
+        pfile = 7 - file;
+      }
+      std::uint32_t px = x + centrer_offset;
+      std::uint32_t py = y + centrer_offset;
+      char piece = board[(7 - pfile) + 8 * prank];
+      if (is_dragging && (7 - pfile) == active_square.x &&
+          (7 - prank) == active_square.y) {
+        dp = piece;
+        dpx = px - (lastClickX - mouseX);
+        dpy = py - (lastClickY - mouseY);
+        DrawDraggingPiece = true;
+        continue;
+      }
+      if (piece != ' ') {
+        dc.DrawBitmap(*t->Get(piece), px, py, false);
+      }
+    }
+  }
+
+  // Draw badge
+  dc.SetPen(wxPen(*wxBLACK, 3));
+  std::uint32_t badgeY = boardY;
+  std::uint32_t badgeWidth = square_width / 2;
+  if (is_black_turn) {
+    dc.SetBrush(*wxBLACK_BRUSH);
+    if (black_side) {
+      badgeY = boardY + (8 * square_width) - badgeWidth;
+    }
+  } else {
+    dc.SetBrush(*wxWHITE_BRUSH);
+    if (!black_side) {
+      badgeY = boardY + (8 * square_width) - badgeWidth;
+    }
+  }
+  wxRect badge(boardX + (8 * square_width) + badgeWidth / 2, badgeY, badgeWidth,
+               badgeWidth);
+  dc.DrawRectangle(badge);
+
+  // Draw captures first for white then for black
+  std::uint32_t captures_size = t_captures->GetPiecesSizes();
+  std::uint8_t padding = 10;
+  std::uint32_t offsetX = 0;
+  std::uint32_t offsetY = -(captures_size + padding);
+  if (black_side) {
+    offsetY = 8 * square_width + padding;
+  }
+  for (char p : {'P', 'N', 'B', 'R', 'Q'}) {
+    if (captures.find(p) != captures.end()) {
+      for (std::uint8_t i = 0; i < captures[p]; i++) {
+        dc.DrawBitmap(*t_captures->Get(p), boardX + offsetX, boardY + offsetY);
+        offsetX += captures_size / 2;
+      }
+      offsetX += captures_size / 2;
+    }
+  }
+  offsetX = 0;
+  if (black_side) {
+    offsetY = -(captures_size + padding);
+  } else {
+    offsetY = 8 * square_width + padding;
+  }
+  for (char p : {'p', 'n', 'b', 'r', 'q'}) {
+    if (captures.find(p) != captures.end()) {
+      for (std::uint8_t i = 0; i < captures[p]; i++) {
+        dc.DrawBitmap(*t_captures->Get(p), boardX + offsetX, boardY + offsetY);
+        offsetX += captures_size / 2;
+      }
+      offsetX += captures_size / 2;
+    }
+  }
+
+  // Draw dragging piece
+  if (DrawDraggingPiece) {
+    dc.DrawBitmap(*t->Get(dp), dpx, dpy, false);
+  }
+
+  // Draw numbers
+  for (char l = 'a'; l < 'a' + 8; l++) {
+    dc.DrawText(wxString(l), wxPoint(boardX + l - 'a' * square_width,
+                                     boardY + 8 * square_width + 10));
+  }
+
+  // Draw Clocks
+  if (std::get<0>(black_time) >= 0) {
+    wxFont font = dc.GetFont();
+    ClockTime clock = black_side ? white_time : black_time;
+    wxString time =
+        wxString::Format("%ds", std::get<1>(clock), std::get<2>(clock));
+    if (std::get<0>(clock) > 0) {
+      time = wxString::Format("%d:%d", std::get<0>(clock), std::get<1>(clock));
+    } else if (std::get<1>(clock) > 0) {
+      time = wxString::Format("%d:%ds", std::get<1>(clock), std::get<2>(clock));
+    }
+    dc.SetFont(font.Scale(1.5).MakeBold());
+    wxCoord width, height;
+    dc.GetTextExtent(time, &width, &height);
+    dc.DrawText(time,
+                wxPoint(boardX + square_width * 8 - width, boardY - height));
+    clock = black_side ? black_time : white_time;
+    time = wxString::Format("%ds", std::get<1>(clock), std::get<2>(clock));
+    if (std::get<0>(clock) > 0) {
+      time = wxString::Format("%d:%d", std::get<0>(clock), std::get<1>(clock));
+    } else if (std::get<1>(clock) > 0) {
+      time = wxString::Format("%d:%ds", std::get<1>(clock), std::get<2>(clock));
+    }
+    dc.GetTextExtent(time, &width, &height);
+    dc.DrawText(time, wxPoint(boardX + square_width * 8 - width,
+                              boardY + square_width * 8));
+  }
+}
+
+void BoardCanvas::MouseEvent(wxMouseEvent &event) {
+  if (!frozen) {
+    if (event.Dragging()) {
+      if (valid_drag) {
+        is_dragging = true;
+        Refresh();
+      }
+    } else {
+      if (is_dragging) {
+        is_dragging = false;
+        valid_drag = false;
+        // Handle drop
+        REFRESH_MOUSE_LOCATION();
+        INIT_CURRENT_SQUARE();
+
+        if (IsCurrentSquareValid) {
+          wxLogDebug("Drag end on square (%d,%d)", file, rank);
+          /// Play the move
+          wxCommandEvent event(PLAY_MOVE_EVENT, GetId());
+          event.SetEventObject(this);
+          std::string move = ((char)('a' + active_square.x)) +
+                             std::to_string(+active_square.y + 1) +
+                             ((char)('a' + file)) + std::to_string(rank + 1);
+          event.SetString(move);
+          ProcessEvent(event);
+        }
+      }
+      if (event.LeftDown()) {
+        SetFocus();
+        REFRESH_MOUSE_LOCATION();
+        lastClickX = mouseX;
+        lastClickY = mouseY;
+        INIT_CURRENT_SQUARE();
+        if (IsCurrentSquareValid) {
+          active_square.x = file;
+          active_square.y = rank;
+          if (board[(7 - rank) * 8 + file] != ' ') {
+            wxLogDebug("Drag start on square (%d,%d)", file, rank);
+            valid_drag = true;
+          }
+        }
+      }
+    }
+  }
+}
+
+void BoardCanvas::Zoom(std::int32_t zoom) {
+  t->Zoom(zoom);
+  t_captures->ResizePieces(t->GetPiecesSizes() * CAPTURE_FACTOR);
+  Refresh();
+}
+
+void BoardCanvas::Swap() {
+  black_side = !black_side;
+  Refresh();
+}
+
+void BoardCanvas::OnKeyEvent(wxKeyEvent &event) {
+  if (event.GetKeyCode() == WXK_LEFT) {
+    wxCommandEvent previousEvent(PREVIOUS_MOVE_EVENT, GetId());
+    previousEvent.SetEventObject(this);
+    ProcessEvent(previousEvent);
+  } else if (event.GetKeyCode() == WXK_RIGHT) {
+    wxCommandEvent nextEvent(NEXT_MOVE_EVENT, GetId());
+    nextEvent.SetEventObject(this);
+    ProcessEvent(nextEvent);
+  }
+}
+
+void BoardCanvas::SetClockTime(short hours, short min, short sec,
+                               bool IsBlack) {
+  if (IsBlack) {
+    black_time = std::make_tuple(hours, min, sec);
+  } else {
+    white_time = std::make_tuple(hours, min, sec);
+  }
+}
+
+wxBEGIN_EVENT_TABLE(BoardCanvas, wxPanel) EVT_PAINT(BoardCanvas::OnPaint)
+    EVT_MOUSE_EVENTS(BoardCanvas::MouseEvent)
+        EVT_CHAR_HOOK(BoardCanvas::OnKeyEvent) wxEND_EVENT_TABLE()

src/game_tab/board/BoardCanvas.hpp

@@ -0,0 +1,68 @@
+#pragma once
+
+#include "Theme.hpp"
+#include "ochess.hpp"
+#include <map>
+#include <tuple>
+#include <utility>
+#include <vector>
+#include <wx/artprov.h>
+
+// Local events
+wxDECLARE_EVENT(PLAY_MOVE_EVENT, wxCommandEvent);
+
+// Foreign events
+wxDECLARE_EVENT(PREVIOUS_MOVE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(NEXT_MOVE_EVENT, wxCommandEvent);
+
+#define REFRESH_MOUSE_LOCATION()                                               \
+  {                                                                            \
+    const wxPoint pt = wxGetMousePosition();                                   \
+    mouseX = pt.x - this->GetScreenPosition().x;                               \
+    mouseY = pt.y - this->GetScreenPosition().y;                               \
+  }
+
+#define INIT_CURRENT_SQUARE()                                                  \
+  std::uint32_t file = 7 - (mouseX - boardX) / square_width;                   \
+  std::uint32_t rank = (mouseY - boardY) / square_width;                       \
+  if (!black_side) {                                                           \
+    file = 7 - file;                                                           \
+    rank = 7 - rank;                                                           \
+  }                                                                            \
+  bool IsCurrentSquareValid = file >= 0 && file <= 7 && rank >= 0 && rank <= 7;
+
+#define MOUSE_ON(x, y, width, height)                                          \
+  (mouseX >= (x) && mouseX <= ((x) + (width)) && mouseY >= (y) &&              \
+   mouseY <= ((y) + (height)))
+
+#define CAPTURE_FACTOR 0.5
+
+typedef std::tuple<short, short, short> ClockTime;
+
+class BoardCanvas : public wxPanel {
+  Theme *t, *t_captures;
+  std::string board;
+  bool black_side, is_dragging, valid_drag, is_black_turn;
+  std::uint32_t boardX, boardY, square_width, mouseX, mouseY, lastClickX,
+      lastClickY;
+  wxSize canvas_size;
+  wxPoint active_square;
+  std::map<char, std::uint8_t> captures;
+  ClockTime black_time, white_time;
+  bool frozen,lock_square_size;
+
+public:
+  BoardCanvas(wxFrame *parent);
+  BoardCanvas(wxFrame *parent,std::uint32_t square_width, bool frozen);
+  void ApplyPreferences();
+  void DrawBoard(wxPaintDC &dc);
+  void OnPaint(wxPaintEvent &event);
+  void OnKeyEvent(wxKeyEvent &event);
+  void MouseEvent(wxMouseEvent &event);
+  void Zoom(std::int32_t zoom);
+  void Swap();
+  void SetupBoard(std::string board, bool is_black_turn,
+                  std::map<char, std::uint8_t> captures);
+  void SetClockTime(short hours, short min, short sec, bool IsBlack);
+  DECLARE_EVENT_TABLE()
+};

src/game_tab/board/BoardPanel.cpp

@@ -0,0 +1,96 @@
+#include "BoardPanel.hpp"
+#include <wx/clipbrd.h>
+
+BoardPanel::BoardPanel(wxFrame *parent, Game *game)
+    : wxPanel(parent), game(game) {
+
+  wxBoxSizer *board_panel_sizer = new wxBoxSizer(wxVERTICAL);
+  board_canvas = new BoardCanvas((wxFrame *)this);
+  board_panel_sizer->Add(board_canvas, 1, wxEXPAND);
+
+  // Left Panel buttons
+  wxBoxSizer *board_panel_button_sizer = new wxBoxSizer(wxHORIZONTAL);
+  board_panel_button_sizer->Add(
+      new wxBitmapButton(this, SWAP_BTN, LoadPNG("swap")), 0);
+  board_panel_button_sizer->Add(
+      new wxBitmapButton(this, ZOOM_IN_BTN, LoadPNG("zoomin")), 0);
+  board_panel_button_sizer->Add(
+      new wxBitmapButton(this, ZOOM_OUT_BTN, LoadPNG("zoomout")), 0);
+  board_panel_button_sizer->Add(new wxButton(this, COPY_FEN_BTN, L"Copy FEN"),
+                                0, wxEXPAND);
+  board_panel_sizer->Add(board_panel_button_sizer, 0);
+  this->SetSizer(board_panel_sizer);
+
+  Bind(PLAY_MOVE_EVENT, &BoardPanel::OnPlay, this, wxID_ANY);
+  Bind(PREVIOUS_MOVE_EVENT, &BoardPanel::OnPreviousMove, this, wxID_ANY);
+  Bind(NEXT_MOVE_EVENT, &BoardPanel::OnNextMove, this, wxID_ANY);
+  Bind(wxEVT_BUTTON, &BoardPanel::OnSwap, this, SWAP_BTN);
+  Bind(wxEVT_BUTTON, &BoardPanel::OnZoomIn, this, ZOOM_IN_BTN);
+  Bind(wxEVT_BUTTON, &BoardPanel::OnZoomOut, this, ZOOM_OUT_BTN);
+  Bind(wxEVT_BUTTON, &BoardPanel::OnCopyFEN, this, COPY_FEN_BTN);
+}
+
+void BoardPanel::OnPreviousMove(wxCommandEvent &event) {
+  game->Previous();
+  Notify();
+  NotifyEditor();
+}
+
+void BoardPanel::OnZoomIn(wxCommandEvent &event) {
+  wxLogDebug("Clicked on zoom in");
+  board_canvas->Zoom(10);
+}
+
+void BoardPanel::OnZoomOut(wxCommandEvent &event) {
+  wxLogDebug("Clicked on zoom out");
+  board_canvas->Zoom(-10);
+}
+
+void BoardPanel::OnSwap(wxCommandEvent &event) {
+  wxLogDebug("Clicked on swap");
+  board_canvas->Swap();
+}
+
+void BoardPanel::OnNextMove(wxCommandEvent &event) {
+  wxLogDebug("Game tab received NEXT_MOVE_EVENT");
+  game->Next();
+  Notify();
+  NotifyEditor();
+}
+
+void BoardPanel::OnPlay(wxCommandEvent &event) {
+  wxLogDebug("Game tab received PLAY_MOVE_EVENT");
+  if (game->Play(event.GetString().ToStdString())) {
+    NotifyEditor();
+  }
+  Notify();
+}
+
+void BoardPanel::OnCopyFEN(wxCommandEvent &event) {
+  wxLogDebug("Clicked on copy fen");
+  if (wxTheClipboard->Open()) {
+    wxTheClipboard->SetData(new wxTextDataObject(game->GetFen()));
+    wxTheClipboard->Close();
+  }
+}
+
+void BoardPanel::Notify() {
+  std::string fen = game->GetFen();
+  std::map<char, std::uint8_t> captures;
+  HalfMove *m = game->GetCurrentMove();
+  if (m != NULL) {
+    captures = m->GetLineCaptures();
+  }
+  board_canvas->SetupBoard(chessarbiter::FENParser::Parse(fen).board,
+                           game->IsBlackToPlay(), captures);
+}
+
+void BoardPanel::NotifyEditor() {
+  wxCommandEvent previousEvent(GAME_CHANGE, GetId());
+  previousEvent.SetEventObject(this);
+  ProcessEvent(previousEvent);
+}
+
+void BoardPanel::ApplyPreferences() {
+  board_canvas->ApplyPreferences();
+}

src/game_tab/board/BoardPanel.hpp

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "../Game.hpp"
+#include "BoardCanvas.hpp"
+#include "ochess.hpp"
+
+// Foreign events
+wxDECLARE_EVENT(GAME_CHANGE, wxCommandEvent);
+
+enum { COPY_FEN_BTN = wxID_HIGHEST + 1, ZOOM_IN_BTN, ZOOM_OUT_BTN, SWAP_BTN };
+
+class BoardPanel : public wxPanel {
+  Game *game;
+  BoardCanvas *board_canvas;
+  void NotifyEditor();
+
+public:
+  BoardPanel(wxFrame *parent, Game *game);
+  void Notify();
+  void OnPlay(wxCommandEvent &event);
+  void OnGotoMove(wxCommandEvent &event);
+  void OnPreviousMove(wxCommandEvent &event);
+  void OnNextMove(wxCommandEvent &event);
+  void OnCopyFEN(wxCommandEvent &event);
+  void OnZoomIn(wxCommandEvent &event);
+  void OnZoomOut(wxCommandEvent &event);
+  void OnSwap(wxCommandEvent &event);
+  void OnRefreshBoard(wxCommandEvent &event);
+  void ApplyPreferences();
+};

src/game_tab/board/Theme.cpp

@@ -0,0 +1,184 @@
+#include "Theme.hpp"
+#include <wx/filename.h>
+
+Theme::Theme() : square_radius(10) {
+  // Load config
+  CONFIG_OPEN(config);
+  std::string piece =
+      config->Read("board/theme/pieces/path", "default").ToStdString();
+  wxFileName piece_file(piece);
+  std::string square =
+      config->Read("board/theme/squares/path", "default").ToStdString();
+  wxFileName square_file(square);
+  CONFIG_CLOSE(config);
+  // Piece
+  if (piece == "default" || !piece_file.FileExists()) {
+    wxLogDebug("Loading piece skin from binres");
+    LoadPiecesSkin(LoadPNG("cburnett").ConvertToImage());
+  } else {
+    wxLogDebug("Loading piece skin: %s", piece);
+    LoadPiecesSkin(wxImage(piece, wxBITMAP_TYPE_PNG));
+  }
+  // Square
+  if (square == "default" || !square_file.FileExists()) {
+    wxLogDebug("Loading square skin from binres");
+    LoadSquaresSkin(LoadPNG("chesscom_8bits").ConvertToImage());
+  } else {
+    wxLogDebug("Loading square skin: %s", square);
+    LoadSquaresSkin(wxImage(square, wxBITMAP_TYPE_PNG));
+  }
+}
+
+Theme::Theme(std::string piece, std::string square) : square_radius(10) {
+  wxLogDebug("Loading piece skin: %s", piece);
+  LoadPiecesSkin(wxImage(piece, wxBITMAP_TYPE_PNG));
+  wxLogDebug("Loading square skin: %s", square);
+  LoadSquaresSkin(wxImage(square, wxBITMAP_TYPE_PNG));
+}
+
+Theme::~Theme() {
+  for (std::pair<char, wxBitmap *> c : skin_scaled) {
+    delete c.second;
+  }
+}
+
+std::uint8_t Theme::GetSquareRadius() { return (square_radius); }
+
+void Theme::LoadPiecesSkin(wxImage iskin) {
+  if (iskin.GetWidth() != 2 * ELT_DIM || iskin.GetHeight() != 6 * ELT_DIM) {
+    throw "Invalid piece theme";
+  }
+
+  int offset = 0;
+  // Kings
+  skin['k'] = iskin.GetSubImage(wxRect(0, offset, ELT_DIM, ELT_DIM));
+  skin['K'] = iskin.GetSubImage(wxRect(ELT_DIM, offset, ELT_DIM, ELT_DIM));
+  // Queen
+  offset = ELT_DIM;
+  skin['q'] = iskin.GetSubImage(wxRect(0, offset, ELT_DIM, ELT_DIM));
+  skin['Q'] = iskin.GetSubImage(wxRect(ELT_DIM, offset, ELT_DIM, ELT_DIM));
+  // Rook
+  offset = ELT_DIM * 2;
+  skin['r'] = iskin.GetSubImage(wxRect(0, offset, ELT_DIM, ELT_DIM));
+  skin['R'] = iskin.GetSubImage(wxRect(ELT_DIM, offset, ELT_DIM, ELT_DIM));
+  // Bishop
+  offset = ELT_DIM * 3;
+  skin['b'] = iskin.GetSubImage(wxRect(0, offset, ELT_DIM, ELT_DIM));
+  skin['B'] = iskin.GetSubImage(wxRect(ELT_DIM, offset, ELT_DIM, ELT_DIM));
+  // Knight
+  offset = ELT_DIM * 4;
+  skin['n'] = iskin.GetSubImage(wxRect(0, offset, ELT_DIM, ELT_DIM));
+  skin['N'] = iskin.GetSubImage(wxRect(ELT_DIM, offset, ELT_DIM, ELT_DIM));
+  // Pawn
+  offset = ELT_DIM * 5;
+  skin['p'] = iskin.GetSubImage(wxRect(0, offset, ELT_DIM, ELT_DIM));
+  skin['P'] = iskin.GetSubImage(wxRect(ELT_DIM, offset, ELT_DIM, ELT_DIM));
+
+  // Update scaled version
+  ResizePieces(DEFAULT_SIZE * PIECE_SIZE_FACTOR);
+}
+
+void Theme::LoadSquaresSkin(wxImage iskin) {
+  if (iskin.GetWidth() != 2 * ELT_DIM || iskin.GetHeight() != ELT_DIM) {
+    throw "Invalid piece theme";
+  }
+
+  // Square
+  skin['s'] = iskin.GetSubImage(wxRect(0, 0, ELT_DIM, ELT_DIM));
+  skin['S'] = iskin.GetSubImage(wxRect(ELT_DIM, 0, ELT_DIM, ELT_DIM));
+
+  // Update scaled version
+  ResizeSquares(DEFAULT_SIZE);
+}
+
+wxBitmap *Theme::Get(char c) { return (skin_scaled[c]); }
+
+void Theme::ResizePieces(std::uint32_t width) {
+  for (std::pair<char, wxImage> c : skin) {
+    if (c.first != 's' && c.first != 'S') {
+      if (skin_scaled.count(c.first))
+        delete skin_scaled[c.first];
+      skin_scaled[c.first] =
+          new wxBitmap(c.second.Scale(width, width, wxIMAGE_QUALITY_HIGH));
+    }
+  }
+}
+
+void Theme::ResizeSquaresAndPieces(std::uint32_t width) {
+  ResizeSquares(width);
+  ResizePieces(width * PIECE_SIZE_FACTOR);
+}
+
+void Theme::ResizeSquares(std::uint32_t width) {
+  if (skin_scaled.count('s'))
+    delete skin_scaled['s'];
+  skin_scaled['s'] =
+      new wxBitmap(skin['s'].Scale(width, width, wxIMAGE_QUALITY_HIGH));
+  if (skin_scaled.count('S'))
+    delete skin_scaled['S'];
+  skin_scaled['S'] =
+      new wxBitmap(skin['S'].Scale(width, width, wxIMAGE_QUALITY_HIGH));
+
+  skin_scaled['0'] = new wxBitmap(*skin_scaled['S']);
+  skin_scaled['1'] = new wxBitmap(*skin_scaled['s']);
+  skin_scaled['2'] = new wxBitmap(*skin_scaled['s']);
+  skin_scaled['3'] = new wxBitmap(*skin_scaled['S']);
+
+  skin_scaled['0']->SetMask(RoundedMask(width, 0));
+  skin_scaled['1']->SetMask(RoundedMask(width, 1));
+  skin_scaled['2']->SetMask(RoundedMask(width, 2));
+  skin_scaled['3']->SetMask(RoundedMask(width, 3));
+}
+
+void Theme::Zoom(int amount) {
+  double width = skin_scaled['s']->GetWidth() + amount;
+  ResizeSquares(std::max(width, 1.0));
+  ResizePieces(std::max(width * PIECE_SIZE_FACTOR, 1.0));
+}
+
+void Theme::SetSquareRadius(std::uint8_t radius) {
+  square_radius = radius;
+  Zoom(0); // Refresh scale
+}
+
+/**
+ * This will never fail since k entry always exists (cf constructor and
+ * ResizePieces)
+ */
+double Theme::GetPiecesSizes() { return (skin_scaled['k']->GetWidth()); }
+
+/**
+ * This will never fail since s entry always exists (cf constructor and
+ * ResizeSquares)
+ */
+double Theme::GetSquaresSizes() { return (skin_scaled['s']->GetWidth()); }
+
+wxMask *Theme::RoundedMask(std::uint32_t width, std::uint8_t corner) {
+
+  wxBitmap b(width, width, 1);
+  wxMemoryDC dc;
+  dc.SelectObject(b);
+  dc.SetPen(*wxBLACK_PEN);
+  dc.SetBrush(*wxBLACK_BRUSH);
+  dc.DrawRectangle(0, 0, width, width);
+  dc.SetBrush(*wxWHITE_BRUSH);
+  dc.SetPen(*wxWHITE_PEN);
+  dc.DrawRoundedRectangle(0, 0, width, width, square_radius);
+
+  dc.SetBrush(*wxWHITE_BRUSH);
+  dc.SetPen(*wxWHITE_PEN);
+  if (corner == 0) {
+    dc.DrawRectangle(0, width / 2, width, width);
+    dc.DrawRectangle(width / 2, 0, width, width);
+  } else if (corner == 1) {
+    dc.DrawRectangle(0, 0, width / 2, width);
+    dc.DrawRectangle(0, width / 2, width, width);
+  } else if (corner == 2) {
+    dc.DrawRectangle(0, 0, width, width / 2);
+    dc.DrawRectangle(width / 2, 0, width, width);
+  } else if (corner == 3) {
+    dc.DrawRectangle(0, 0, width / 2, width);
+    dc.DrawRectangle(0, 0, width, width / 2);
+  }
+  return (new wxMask(b));
+}

src/game_tab/board/Theme.hpp

@@ -0,0 +1,37 @@
+#pragma once
+
+#include "ochess.hpp"
+
+#include <string>
+#include <unordered_map>
+
+#define ELT_DIM 200
+#define DEFAULT_SIZE 80
+#define PIECE_SIZE_FACTOR 0.8 // Should be between 0 and 1
+#define DEFAULT_PIECE_THEME "assets/pieces/cburnett.png"
+#define DEFAULT_SQUARE_THEME "assets/boards/chesscom_8bits.png"
+
+class Theme {
+private:
+  std::unordered_map<char, wxImage> skin;
+  std::unordered_map<char, wxBitmap *> skin_scaled;
+  std::uint8_t square_radius;
+  wxMask *RoundedMask(std::uint32_t width, std::uint8_t corner);
+
+public:
+  Theme();
+  Theme(std::string piece, std::string square);
+  ~Theme();
+  void LoadPiecesSkin(wxImage skin);
+  void LoadSquaresSkin(wxImage iskin);
+  void ResizePieces(std::uint32_t width);
+  void ResizeSquares(std::uint32_t width);
+  void ResizeSquaresAndPieces(std::uint32_t width);
+  void SetSquareRadius(std::uint8_t radius);
+  std::uint8_t GetSquareRadius();
+  void Zoom(int amount);
+  double GetPiecesSizes();
+  double GetSquaresSizes();
+
+  wxBitmap *Get(char c);
+};

src/game_tab/editor/EditorCanvas.cpp

@@ -0,0 +1,186 @@
+#include "EditorCanvas.hpp"
+
+EditorCanvas::EditorCanvas(wxFrame *parent)
+    : wxPanel(parent), NeedRedraw(false) {
+  hide_icon = LoadPNG("hide", wxSize(CGEditor::status.MoveIconWidth,
+                                     CGEditor::status.MoveIconWidth));
+  t.ResizePieces(CGEditor::status.MoveIconWidth);
+}
+
+void EditorCanvas::OnPaint(wxPaintEvent &event) {
+  wxPaintDC current_dc(this);
+  dc = &current_dc;
+
+  // Refresh canvas size
+  wxSize sz = GetClientSize();
+  CGEditor::status.CanvasWidth = sz.GetWidth();
+  CGEditor::status.CanvasHeight = sz.GetHeight();
+  CGEditor::status.UseMoveIcons =
+      true; // Piece image should be drawn before the move ?
+
+  const wxPoint pt = wxGetMousePosition();
+  CGEditor::status.MouseX = pt.x - this->GetScreenPosition().x;
+  CGEditor::status.MouseY = pt.y - this->GetScreenPosition().y;
+  CGEditor::Draw();
+}
+
+/**
+ * @brief Convenient fonction to center text
+ *
+ * @param e Element to center
+ * @return wxPoint The centered version of e according to wdWidget API
+ */
+wxPoint EditorCanvas::Middle(cgeditor::Element e) {
+  wxSize sz = dc->GetTextExtent(e.text);
+  return (wxPoint(e.x + (e.width - sz.GetWidth()) / 2,
+                  e.y + (e.height - sz.GetHeight()) / 2));
+}
+
+void EditorCanvas::DrawElement(const cgeditor::Element &e) {
+  dc->SetPen(wxNullPen);
+  dc->SetBrush(*wxRED_BRUSH);
+  if (e.prop & cgeditor::Property::Rectangle) {
+    if (e.prop & cgeditor::Property::Scrollbarbg) {
+      dc->SetBrush(*wxCYAN_BRUSH);
+    } else if (e.prop & cgeditor::Property::Scrollbar) {
+      dc->SetBrush(*wxGREY_BRUSH);
+    } else if (e.prop & cgeditor::Property::Margin) {
+      dc->SetBrush(*wxLIGHT_GREY_BRUSH);
+    } else if (e.prop & cgeditor::Property::Button) {
+      if (e.prop & cgeditor::Property::On) {
+        dc->DrawBitmap(hide_icon, e.x, e.y);
+        return;
+      }
+      dc->SetBrush(*wxBLACK_BRUSH);
+    }
+    wxRect recToDraw(e.x, e.y, e.width, e.height);
+    dc->DrawRectangle(recToDraw);
+  } else if (e.prop & cgeditor::Property::Text ||
+             e.prop & cgeditor::Property::Image) {
+    if (e.prop & cgeditor::Property::Image) {
+      // Draw your pieces images instead
+      std::uint32_t y = Middle(e).y - CGEditor::status.MoveIconWidth / 2;
+      char p = 'P';
+      if (e.prop & cgeditor::Property::Knight) {
+        p = 'N';
+      } else if (e.prop & cgeditor::Property::Bishop) {
+        p = 'B';
+      } else if (e.prop & cgeditor::Property::Queen) {
+        p = 'Q';
+      } else if (e.prop & cgeditor::Property::King) {
+        p = 'K';
+      }
+      if (e.prop & cgeditor::Property::Black) {
+        p = std::tolower(p);
+      }
+      if (e.prop & cgeditor::Property::Current) {
+        wxRect recToDraw(e.x, e.y, e.width, e.height);
+        dc->SetBrush(*wxLIGHT_GREY_BRUSH);
+        dc->DrawRectangle(recToDraw);
+      }
+      dc->DrawBitmap(*t.Get(p), e.x, y);
+    } else if (e.prop & cgeditor::Property::Comment) {
+      wxRect recToDraw(e.x, e.y, e.width, e.height);
+      dc->SetBrush(*wxYELLOW_BRUSH);
+      dc->DrawRectangle(recToDraw);
+      dc->DrawText(wxString(e.text), wxPoint(e.x, e.y));
+    } else if (e.prop & cgeditor::Property::Menuitem) {
+      wxRect recToDraw(e.x, e.y, e.width, e.height);
+      dc->SetBrush(*wxLIGHT_GREY_BRUSH);
+      dc->DrawRectangle(recToDraw);
+      dc->DrawText(wxString(e.text), wxPoint(e.x, Middle(e).y));
+    } else {
+      if (e.prop & cgeditor::Property::Move) {
+        if (e.prop & cgeditor::Property::Current) {
+          wxRect recToDraw(e.x, e.y, e.width, e.height);
+          dc->SetBrush(*wxLIGHT_GREY_BRUSH);
+          dc->DrawRectangle(recToDraw);
+        }
+        if (CGEditor::status.UseMoveIcons) {
+          dc->DrawText(wxString(e.text), wxPoint(e.x, Middle(e).y));
+        } else {
+          dc->DrawText(wxString(e.text), Middle(e));
+        }
+      } else {
+        dc->DrawText(wxString(e.text), Middle(e));
+      }
+    }
+  }
+}
+void EditorCanvas::HandleEvent(const cgeditor::Event &e) {
+  wxLogDebug("Editor event!");
+  if (e.type == cgeditor::Event::Goto) {
+    wxCommandEvent event(GOTO_MOVE_EVENT, GetId());
+    event.SetEventObject(this);
+    event.SetClientData(e.move);
+    ProcessEvent(event);
+  } else if (e.type == cgeditor::Event::Delete) {
+    wxCommandEvent event(DELETE_MOVE_EVENT, GetId());
+    event.SetEventObject(this);
+    event.SetClientData(e.move);
+    ProcessEvent(event);
+  } else if (e.type == cgeditor::Event::Promote) {
+    wxCommandEvent event(PROMOTE_MOVE_EVENT, GetId());
+    event.SetEventObject(this);
+    event.SetClientData(e.move);
+    ProcessEvent(event);
+  } else if (e.type == cgeditor::Event::SetAsMainline) {
+    wxCommandEvent event(SET_AS_MAINLINE_EVENT, GetId());
+    event.SetEventObject(this);
+    event.SetClientData(e.move);
+    ProcessEvent(event);
+  }
+}
+
+void EditorCanvas::MouseEvent(wxMouseEvent &event) {
+  if (event.Dragging()) {
+    CGEditor::status.LeftClick = false;
+    CGEditor::status.IsDrag = true;
+    Refresh();
+  } else if (event.LeftDown()) {
+    SetFocus();
+    CGEditor::status.LeftClick = true;
+    Refresh();
+  } else if (event.RightDown()) {
+    SetFocus();
+    CGEditor::status.RightClick = true;
+    Refresh();
+  } else if (event.GetWheelRotation() != 0) {
+    SetFocus();
+    if (event.GetWheelRotation() < 0) {
+      CGEditor::status.EventVScroll = 50;
+    } else {
+      CGEditor::status.EventVScroll = -50;
+    }
+    Refresh();
+  }
+
+  // Should another draw of CGEditor be made?
+  if (NeedRedraw) {
+    Refresh();
+    NeedRedraw = false;
+  }
+}
+
+void EditorCanvas::SetMoves(HalfMove *moves, HalfMove *current) {
+  CGEditor::status.Moves = moves;
+  CGEditor::status.CurrentMove = current;
+
+  Refresh();
+}
+
+void EditorCanvas::OnKeyEvent(wxKeyEvent &event) {
+  if (event.GetKeyCode() == WXK_LEFT) {
+    wxCommandEvent previousEvent(PREVIOUS_MOVE_EVENT, GetId());
+    previousEvent.SetEventObject(this);
+    ProcessEvent(previousEvent);
+  } else if (event.GetKeyCode() == WXK_RIGHT) {
+    wxCommandEvent nextEvent(NEXT_MOVE_EVENT, GetId());
+    nextEvent.SetEventObject(this);
+    ProcessEvent(nextEvent);
+  }
+}
+
+wxBEGIN_EVENT_TABLE(EditorCanvas, wxPanel) EVT_PAINT(EditorCanvas::OnPaint)
+    EVT_MOUSE_EVENTS(EditorCanvas::MouseEvent)
+        EVT_CHAR_HOOK(EditorCanvas::OnKeyEvent) wxEND_EVENT_TABLE()

src/game_tab/editor/EditorCanvas.hpp

@@ -0,0 +1,33 @@
+#pragma once
+
+#include "../HalfMove.hpp"
+#include "CGEditor.hpp"
+#include "ochess.hpp"
+#include "../board/Theme.hpp"
+
+// Foreign events
+wxDECLARE_EVENT(GOTO_MOVE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(PREVIOUS_MOVE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(NEXT_MOVE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(DELETE_MOVE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(PROMOTE_MOVE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(SET_AS_MAINLINE_EVENT, wxCommandEvent);
+
+class EditorCanvas : public wxPanel, public cgeditor::CGEditor {
+  wxPaintDC *dc;
+  bool NeedRedraw;
+  wxPoint Middle(cgeditor::Element e);
+  wxBitmap hide_icon;
+  Theme t;
+
+public:
+  EditorCanvas(wxFrame *parent);
+  void OnPaint(wxPaintEvent &event);
+  void MouseEvent(wxMouseEvent &event);
+  void DrawElement(const cgeditor::Element &e);
+  void HandleEvent(const cgeditor::Event &e);
+  void SetMoves(HalfMove *moves, HalfMove *current);
+  void OnKeyEvent(wxKeyEvent &event);
+
+  DECLARE_EVENT_TABLE()
+};

src/game_tab/editor/EditorPanel.cpp

@@ -0,0 +1,207 @@
+#include "EditorPanel.hpp"
+
+wxDEFINE_EVENT(GOTO_MOVE_EVENT, wxCommandEvent);
+wxDEFINE_EVENT(DELETE_MOVE_EVENT, wxCommandEvent);
+wxDEFINE_EVENT(PROMOTE_MOVE_EVENT, wxCommandEvent);
+wxDEFINE_EVENT(SET_AS_MAINLINE_EVENT, wxCommandEvent);
+wxDEFINE_EVENT(PREVIOUS_MOVE_EVENT, wxCommandEvent);
+wxDEFINE_EVENT(NEXT_MOVE_EVENT, wxCommandEvent);
+
+EditorPanel::EditorPanel(wxFrame *parent, Game *game)
+    : wxPanel(parent), game(game), selected_item(-1) {
+
+  // ----- Init -----
+  wxBoxSizer *sizer = new wxBoxSizer(wxVERTICAL);
+  wxNotebook *notebook = new wxNotebook(this, wxID_ANY);
+
+  //----- CGEditor Page -----
+  wxPanel *cgeditor_panel = new wxPanel(notebook, wxID_ANY);
+  wxBoxSizer *cgeditor_panel_sizer = new wxBoxSizer(wxVERTICAL);
+  editor_canvas = new EditorCanvas((wxFrame *)cgeditor_panel);
+  cgeditor_panel_sizer->Add(editor_canvas, 1, wxEXPAND);
+  // Comment box
+  wxStaticBox *commentBox =
+      new wxStaticBox(cgeditor_panel, wxID_ANY, "Move Comment");
+  wxBoxSizer *commentBoxSizer = new wxBoxSizer(wxVERTICAL);
+  comment_input = new wxTextCtrl(
+      commentBox, COMMENT_INPUT_BOX, wxEmptyString, // Use right ID
+      wxDefaultPosition, wxSize(0, 150), wxTE_MULTILINE);
+  commentBoxSizer->Add(comment_input, 0, wxEXPAND);
+  commentBox->SetSizer(commentBoxSizer);
+  cgeditor_panel_sizer->Add(commentBox, 0, wxEXPAND);
+  cgeditor_panel->SetSizer(cgeditor_panel_sizer);
+
+  //----- Tags Page -----
+  wxPanel *tag_panel = new wxPanel(notebook, wxID_ANY);
+  wxBoxSizer *tag_panel_sizer = new wxBoxSizer(wxVERTICAL);
+  wxPanel *tag_edit_panel = new wxPanel(tag_panel, wxID_ANY);
+  wxBoxSizer *tag_edit_panel_sizer = new wxBoxSizer(wxVERTICAL);
+  tagTextCtrl = new wxTextCtrl(tag_edit_panel, wxID_ANY);
+  tagTextCtrl->SetHint(wxString("Name"));
+  tag_edit_panel_sizer->Add(tagTextCtrl, 1, wxEXPAND);
+  valueTextCtrl = new wxTextCtrl(tag_edit_panel, wxID_ANY);
+  valueTextCtrl->SetHint(wxString("Value"));
+  tag_edit_panel_sizer->Add(valueTextCtrl, 1, wxEXPAND);
+  tag_edit_panel_sizer->Add(new wxButton(tag_edit_panel, UPDATE_BTN, L"Update"),
+                            1, wxEXPAND);
+  tag_edit_panel->SetSizer(tag_edit_panel_sizer);
+  tag_panel_sizer->Add(tag_edit_panel, 0, wxEXPAND);
+  tags_list = new wxListCtrl(tag_panel, wxID_ANY, wxDefaultPosition,
+                             wxDefaultSize, wxLC_REPORT);
+  tags_list->InsertColumn(0, L"Name");
+  tags_list->InsertColumn(1, L"Value", wxLIST_FORMAT_LEFT, 500);
+  RefreshTagsList();
+  tag_panel_sizer->Add(tags_list, 1, wxEXPAND);
+  delete_button = new wxButton(tag_panel, DELETE_BTN, L"Delete");
+  delete_button->Enable(false);
+  tag_panel_sizer->Add(delete_button, 0, wxEXPAND);
+  tag_panel->SetSizer(tag_panel_sizer);
+
+  //----- Notebook -----
+  notebook->AddPage(cgeditor_panel, L"Editor");
+  notebook->AddPage(tag_panel, L"Tags");
+  sizer->Add(notebook, 1, wxEXPAND);
+
+  //----- Sizer -----
+  this->SetSizer(sizer);
+
+  // Bind events
+  this->Bind(wxEVT_TEXT, &EditorPanel::OnCommentChange, this,
+             COMMENT_INPUT_BOX);
+  this->Bind(GOTO_MOVE_EVENT, &EditorPanel::OnGotoMove, this, wxID_ANY);
+  this->Bind(DELETE_MOVE_EVENT, &EditorPanel::OnMoveDelete, this, wxID_ANY);
+  this->Bind(PROMOTE_MOVE_EVENT, &EditorPanel::OnMovePromote, this, wxID_ANY);
+  this->Bind(SET_AS_MAINLINE_EVENT, &EditorPanel::OnMoveSetAsMainline, this,
+             wxID_ANY);
+  this->Bind(NEXT_MOVE_EVENT, &EditorPanel::OnNextMove, this, wxID_ANY);
+  this->Bind(PREVIOUS_MOVE_EVENT, &EditorPanel::OnPreviousMove, this, wxID_ANY);
+  this->Bind(wxEVT_LIST_ITEM_SELECTED, &EditorPanel::OnTagSelected, this,
+             wxID_ANY);
+  this->Bind(wxEVT_LIST_ITEM_DESELECTED, &EditorPanel::OnTagDeselected, this,
+             wxID_ANY);
+  this->Bind(wxEVT_BUTTON, &EditorPanel::OnApply, this, UPDATE_BTN);
+  this->Bind(wxEVT_BUTTON, &EditorPanel::OnDelete, this, DELETE_BTN);
+}
+
+void EditorPanel::OnTagSelected(wxListEvent &event) {
+  wxListItem item = event.GetItem();
+  std::string key = item.GetText().ToStdString();
+  tagTextCtrl->ChangeValue(key);
+  item.SetColumn(1);
+  tags_list->GetItem(item);
+  valueTextCtrl->ChangeValue(item.GetText().ToStdString());
+  selected_item = item.GetId();
+  delete_button->Enable(true);
+}
+
+void EditorPanel::OnTagDeselected(wxListEvent &event) {
+  selected_item = -1;
+  delete_button->Enable(false);
+}
+
+void EditorPanel::NotifyBoard() {
+  wxCommandEvent previousEvent(GAME_CHANGE, GetId());
+  previousEvent.SetEventObject(this);
+  ProcessEvent(previousEvent);
+}
+
+void EditorPanel::OnCommentChange(wxCommandEvent &event) {
+  wxLogDebug("EditorPanel: comment input change");
+  HalfMove *m = game->GetCurrentMove();
+  if (m != NULL) {
+    m->SetComment(event.GetString().ToStdString());
+  }
+  editor_canvas->Refresh();
+}
+
+void EditorPanel::OnApply(wxCommandEvent &event) {
+  std::string key = tagTextCtrl->GetValue().ToStdString();
+  if (key == "FEN") {
+    SHOW_DIALOG_ERROR("Editing the FEN tag is forbidden");
+    return;
+  }
+  if (key.size() > 0) {
+    std::string value = valueTextCtrl->GetValue().ToStdString();
+    game->SetTag(key, value);
+    RefreshTagsList();
+    wxCommandEvent event(REFRESH_TAB_TITLE, GetId());
+    event.SetEventObject(this);
+    ProcessEvent(event);
+  }
+}
+
+void EditorPanel::OnDelete(wxCommandEvent &event) {
+  if (selected_item >= 0) {
+    wxListItem item;
+    item.SetColumn(0);
+    item.SetId(selected_item);
+    tags_list->GetItem(item);
+    std::string key = item.GetText().ToStdString();
+    if (key != "FEN") {
+      game->DeleteTag(key);
+      selected_item = -1;
+      RefreshTagsList();
+    } else {
+      SHOW_DIALOG_ERROR("Deleting the FEN tag is forbidden.");
+    }
+  }
+}
+
+void EditorPanel::OnGotoMove(wxCommandEvent &event) {
+  wxLogDebug("EditorPanel: received GOTO_MOVE_EVENT");
+  game->SetCurrent((HalfMove *)event.GetClientData());
+  NotifyBoard();
+  editor_canvas->Refresh();
+}
+
+void EditorPanel::OnMoveDelete(wxCommandEvent &event) {
+  game->DeleteMove((HalfMove *)event.GetClientData());
+  NotifyBoard();
+  editor_canvas->Refresh();
+}
+
+void EditorPanel::OnMovePromote(wxCommandEvent &event) {
+  wxLogDebug("EditorPanel: promote move called");
+  game->PromoteMove((HalfMove *)event.GetClientData());
+  NotifyBoard();
+  editor_canvas->Refresh();
+}
+
+void EditorPanel::OnMoveSetAsMainline(wxCommandEvent &event) {
+  wxLogDebug("EditorPanel: set move as mainline called");
+  game->SetMoveAsMainline((HalfMove *)event.GetClientData());
+  NotifyBoard();
+  editor_canvas->Refresh();
+}
+
+void EditorPanel::Notify() {
+  HalfMove *m = game->GetCurrentMove();
+  if (m != NULL) {
+    comment_input->ChangeValue(
+        m->GetComment()); // ChangeValue do not raise events
+  }
+  editor_canvas->SetMoves(game->GetMoves(), m);
+}
+
+void EditorPanel::RefreshTagsList() {
+  tags_list->DeleteAllItems();
+  for (std::string s : game->ListTags()) {
+    long index = tags_list->InsertItem(0, s);
+    tags_list->SetItem(index, 1, game->GetTag(s));
+    if (s == "FEN") {
+      tags_list->SetItemBackgroundColour(index, wxColour(200, 200, 200));
+    }
+  }
+}
+
+void EditorPanel::OnPreviousMove(wxCommandEvent &event) {
+  game->Previous();
+  Notify();
+  NotifyBoard();
+}
+
+void EditorPanel::OnNextMove(wxCommandEvent &event) {
+  game->Next();
+  Notify();
+  NotifyBoard();
+}

src/game_tab/editor/EditorPanel.hpp

@@ -0,0 +1,44 @@
+#include "../Game.hpp"
+#include "EditorCanvas.hpp"
+#include "ochess.hpp"
+#include <wx/listctrl.h>
+#include <wx/notebook.h>
+
+// Local events
+wxDECLARE_EVENT(GOTO_MOVE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(DELETE_MOVE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(PROMOTE_MOVE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(SET_AS_MAINLINE_EVENT, wxCommandEvent);
+wxDECLARE_EVENT(REFRESH_TAB_TITLE, wxCommandEvent);
+
+// Foreign events
+wxDECLARE_EVENT(GAME_CHANGE, wxCommandEvent);
+
+enum { COMMENT_INPUT_BOX = wxID_HIGHEST + 100, UPDATE_BTN, DELETE_BTN };
+
+class EditorPanel : public wxPanel {
+  Game *game;
+  EditorCanvas *editor_canvas;
+  wxTextCtrl *comment_input;
+  wxListCtrl *tags_list;
+  wxTextCtrl *tagTextCtrl, *valueTextCtrl;
+  wxButton *delete_button;
+  long selected_item;
+
+public:
+  EditorPanel(wxFrame *parent, Game *game);
+  void NotifyBoard();
+  void Notify();
+  void OnCommentChange(wxCommandEvent &event);
+  void OnGotoMove(wxCommandEvent &event);
+  void OnMoveDelete(wxCommandEvent &event);
+  void OnMovePromote(wxCommandEvent &event);
+  void OnMoveSetAsMainline(wxCommandEvent &event);
+  void RefreshTagsList();
+  void OnTagSelected(wxListEvent &event);
+  void OnTagDeselected(wxListEvent &event);
+  void OnApply(wxCommandEvent &event);
+  void OnDelete(wxCommandEvent &event);
+  void OnPreviousMove(wxCommandEvent &event);
+  void OnNextMove(wxCommandEvent &event);
+};