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//
// ChessBoardWidget.cs
//
// Author:
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2016 jp
//
// This program 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.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
using System;
using System.ComponentModel;
using Crow;
using Crow.Cairo;
//using vkvg;
namespace vkChess
{
public class BoardWidget : Widget
{
Picture sprites;
Piece[,] board;
[DefaultValue(null)]
public virtual Piece[,] Board {
get { return board; }
set {
if (board == value) {
RegisterForGraphicUpdate ();
return;
}
board = value;
NotifyValueChanged ("Board", board);
RegisterForGraphicUpdate ();
}
}
public BoardWidget ():base()
{
sprites = new SvgPicture ("data/Pieces.svg");
}
protected override void onDraw (Context gr)
{
base.onDraw (gr);
/*gr.FontFace = Font.Name;
gr.FontSize = (uint)Font.Size;*/
FontExtents fe = gr.FontExtents;
Rectangle r = ClientRectangle;
r.Inflate (-(int)fe.Height);
double gridSize;
double gridX = r.X;
double gridY = r.Y;
if (r.Width > r.Height) {
gridX += (r.Width - r.Height) / 2;
gridSize = r.Height;
} else {
gridY += (r.Height - r.Width) / 2;
gridSize = r.Width;
}
Fill white = new SolidColor (Colors.Ivory);
white.SetAsSource (IFace, gr);
gr.Rectangle (gridX, gridY, gridSize, gridSize);
gr.Fill ();
double cellSize = gridSize / 8;
Fill black = new SolidColor (Colors.Grey);
black.SetAsSource (IFace, gr);
for (int x = 0; x < 8; x++) {
for (int y = 0; y < 8; y++) {
if ((x + y) % 2 != 0)
gr.Rectangle (gridX + x * cellSize, gridY + y * cellSize, cellSize, cellSize);
}
}
gr.Fill ();
Foreground.SetAsSource (IFace, gr);
for (int x = 0; x < 8; x++) {
string L = new string(new char[] { (char)(x + 97)});
gr.MoveTo (gridX + x * cellSize - gr.TextExtents(L).XAdvance / 2 + cellSize / 2,
gridY + gridSize + fe.Ascent + 1);
gr.ShowText (L);
}
for (int y = 0; y < 8; y++) {
string L = (y + 1).ToString();
gr.MoveTo (gridX - gr.TextExtents(L).XAdvance - 1,
gridY + fe.Ascent + cellSize * (7-y) + cellSize / 2 - fe.Height / 2);
gr.ShowText (L);
}
gr.Fill ();
if (board == null)
return;
for (int x = 0; x < 8; x++) {
for (int y = 0; y < 8; y++) {
if (board [x, y] == null)
continue;
string spriteName;
if (board [x, y].Player == ChessColor.White)
spriteName = "w";
else
spriteName = "b";
switch (board[x,y].Type) {
case PieceType.Pawn:
spriteName += "p";
break;
case PieceType.Rook:
spriteName += "r";
break;
case PieceType.Knight:
spriteName += "k";
break;
case PieceType.Bishop:
spriteName += "b";
break;
case PieceType.King:
spriteName += "K";
break;
case PieceType.Queen:
spriteName += "q";
break;
}
sprites.Paint (IFace, gr,new Rectangle(
(int)(gridX + x * cellSize),
(int)(gridY + (7 - y) * cellSize),
(int)cellSize,
(int)cellSize),spriteName);
}
}
}
}
}
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