Refactoring game tab

6 files changed, 709 insertions, 0 deletions

diff --git a/src/game_tab/left_panel/GameTabLeftPanel.cpp b/src/game_tab/left_panel/GameTabLeftPanel.cpp
new file mode 100644
index 0000000..79894d0
--- /dev/null
+++ b/src/game_tab/left_panel/GameTabLeftPanel.cpp
@@ -0,0 +1,96 @@
+#include "GameTabLeftPanel.hpp"
+#include <wx/clipbrd.h>
+
+GameTabLeftPanel::GameTabLeftPanel(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, &GameTabLeftPanel::OnPlay, this, wxID_ANY);
+  Bind(PREVIOUS_MOVE_EVENT, &GameTabLeftPanel::OnPreviousMove, this, wxID_ANY);
+  Bind(NEXT_MOVE_EVENT, &GameTabLeftPanel::OnNextMove, this, wxID_ANY);
+  Bind(wxEVT_BUTTON, &GameTabLeftPanel::OnSwap, this, SWAP_BTN);
+  Bind(wxEVT_BUTTON, &GameTabLeftPanel::OnZoomIn, this, ZOOM_IN_BTN);
+  Bind(wxEVT_BUTTON, &GameTabLeftPanel::OnZoomOut, this, ZOOM_OUT_BTN);
+  Bind(wxEVT_BUTTON, &GameTabLeftPanel::OnCopyFEN, this, COPY_FEN_BTN);
+}
+
+void GameTabLeftPanel::OnPreviousMove(wxCommandEvent &event) {
+  game->Previous();
+  Notify();
+  NotifyEditor();
+}
+
+void GameTabLeftPanel::OnZoomIn(wxCommandEvent &event) {
+  wxLogDebug("Clicked on zoom in");
+  board_canvas->Zoom(10);
+}
+
+void GameTabLeftPanel::OnZoomOut(wxCommandEvent &event) {
+  wxLogDebug("Clicked on zoom out");
+  board_canvas->Zoom(-10);
+}
+
+void GameTabLeftPanel::OnSwap(wxCommandEvent &event) {
+  wxLogDebug("Clicked on swap");
+  board_canvas->Swap();
+}
+
+void GameTabLeftPanel::OnNextMove(wxCommandEvent &event) {
+  wxLogDebug("Game tab received NEXT_MOVE_EVENT");
+  game->Next();
+  Notify();
+  NotifyEditor();
+}
+
+void GameTabLeftPanel::OnPlay(wxCommandEvent &event) {
+  wxLogDebug("Game tab received PLAY_MOVE_EVENT");
+  if (game->Play(event.GetString().ToStdString())) {
+    NotifyEditor();
+  }
+  Notify();
+}
+
+void GameTabLeftPanel::OnCopyFEN(wxCommandEvent &event) {
+  wxLogDebug("Clicked on copy fen");
+  if (wxTheClipboard->Open()) {
+    wxTheClipboard->SetData(new wxTextDataObject(game->GetFen()));
+    wxTheClipboard->Close();
+  }
+}
+
+void GameTabLeftPanel::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 GameTabLeftPanel::NotifyEditor() {
+  wxCommandEvent previousEvent(GAME_CHANGE, GetId());
+  previousEvent.SetEventObject(this);
+  ProcessEvent(previousEvent);
+}
+
+void GameTabLeftPanel::ApplyPreferences() {
+  board_canvas->ApplyPreferences();
+}
diff --git a/src/game_tab/left_panel/GameTabLeftPanel.hpp b/src/game_tab/left_panel/GameTabLeftPanel.hpp
new file mode 100644
index 0000000..85b1e6e
--- /dev/null
+++ b/src/game_tab/left_panel/GameTabLeftPanel.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "../Game.hpp"
+#include "board/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 GameTabLeftPanel : public wxPanel {
+  Game *game;
+  BoardCanvas *board_canvas;
+  void NotifyEditor();
+
+public:
+  GameTabLeftPanel(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();
+};
\ No newline at end of file
diff --git a/src/game_tab/left_panel/board/BoardCanvas.cpp b/src/game_tab/left_panel/board/BoardCanvas.cpp
new file mode 100644
index 0000000..237a68a
--- /dev/null
+++ b/src/game_tab/left_panel/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()
diff --git a/src/game_tab/left_panel/board/BoardCanvas.hpp b/src/game_tab/left_panel/board/BoardCanvas.hpp
new file mode 100644
index 0000000..34c4911
--- /dev/null
+++ b/src/game_tab/left_panel/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()
+};
diff --git a/src/game_tab/left_panel/board/Theme.cpp b/src/game_tab/left_panel/board/Theme.cpp
new file mode 100644
index 0000000..6ecbafc
--- /dev/null
+++ b/src/game_tab/left_panel/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));
+}
diff --git a/src/game_tab/left_panel/board/Theme.hpp b/src/game_tab/left_panel/board/Theme.hpp
new file mode 100644
index 0000000..88036d8
--- /dev/null
+++ b/src/game_tab/left_panel/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);
+};