Third method of sweep selection

[xboard.git] / xboard.c

diff --git a/xboard.c b/xboard.c
index 1fbf561..6584d2a 100644 (file)
--- a/xboard.c
+++ b/xboard.c
@@ -4766,8 +4766,7 @@ void HandleUserMove(w, event, prms, nprms)
 void AnimateUserMove (Widget w, XEvent * event,
                      String * params, Cardinal * nParams)
 {
-    extern ChessSquare promoSweep;
-    if(promoSweep != EmptySquare && appData.sweepSelect) PromoScroll(event->xmotion.x, event->xmotion.y); else
+    if(!PromoScroll(event->xmotion.x, event->xmotion.y))
     DragPieceMove(event->xmotion.x, event->xmotion.y);
 }
 
@@ -8535,6 +8534,16 @@ DragPieceBegin(x, y)
     }
 }
 
+void
+ChangeDragPiece(ChessSquare piece)
+{
+  Pixmap mask;
+  player.dragPiece = piece;
+  /* The piece will be drawn using its own bitmap as a matte   */
+  SelectGCMask(piece, &player.pieceGC, &player.outlineGC, &mask);
+  XSetClipMask(xDisplay, player.pieceGC, mask);
+}
+
 static void
 DragPieceMove(x, y)
      int x; int y;