void Item_Event(object obj, Gnome.CanvasEventArgs args)
{
EventButton ev = new EventButton(args.Event.Handle);
CanvasRE item = (CanvasRE)obj;
switch (ev.Type)
{
case EventType.ButtonPress:
if (ev.Button == 1)
{
remember_x = ev.X;
remember_y = ev.Y;
args.RetVal = true;
return;
}
else if (ev.Button == 3)
{
item.Destroy();
args.RetVal = true;
return;
}
break;
case EventType.TwoButtonPress:
ChangeItemColor(item);
args.RetVal = true;
return;
case EventType.MotionNotify:
Gdk.ModifierType state = (Gdk.ModifierType)ev.State;
if ((state & Gdk.ModifierType.Button1Mask) != 0)
{
double new_x = ev.X, new_y = ev.Y;
item.Move(new_x - remember_x, new_y - remember_y);
remember_x = new_x;
remember_y = new_y;
args.RetVal = true;
return;
}
break;
case EventType.EnterNotify:
item.WidthUnits = 3.0;
args.RetVal = true;
return;
case EventType.LeaveNotify:
item.WidthUnits = 1.0;
args.RetVal = true;
return;
}
args.RetVal = false;
return;
}
static void Piece_Event(object o, Gnome.CanvasEventArgs args)
{
BoardPiece piece = (BoardPiece)o;
Canvas canvas = piece.Canvas;
double dx = 0.0, dy = 0.0;
switch (args.Event.Type)
{
case EventType.EnterNotify:
piece.Text.FillColor = "white";
args.RetVal = true;
break;
case EventType.LeaveNotify:
piece.Text.FillColor = "black";
args.RetVal = true;
break;
case EventType.ButtonPress:
int y = piece.Position / 4;
int x = piece.Position % 4;
Print_Position("from", piece.Position, true);
bool toMove = true;
if ((y > 0) && (piece.Board [(y - 1) * 4 + x] == null))
{
dx = 0.0;
dy = -1.0;
y--;
}
else if ((y < 3) && (piece.Board [(y + 1) * 4 + x] == null))
{
dx = 0.0;
dy = 1.0;
y++;
}
else if ((x > 0) && (piece.Board [y * 4 + x - 1] == null))
{
dx = -1.0;
dy = 0.0;
x--;
}
else if ((x < 3) && (piece.Board [y * 4 + x + 1] == null))
{
dx = 1.0;
dy = 0.0;
x++;
}
else
{
toMove = false;
}
if (toMove)
{
int new_position = y * 4 + x;
Print_Position("to", new_position, false);
piece.Board [piece.Position] = null;
piece.Position = new_position;
piece.Move(dx * PIECE_SIZE, dy * PIECE_SIZE);
canvas.UpdateNow();
}
else
{
Print_Position("to", piece.Position, false);
}
args.RetVal = true;
break;
default:
args.RetVal = false;
break;
}
}