Implement -positionDir option GTK

[xboard.git] / backend.c

diff --git a/backend.c b/backend.c
index c4c5bf3..6bf57ac 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -7388,7 +7388,7 @@ LeftClick (ClickType clickType, int xPix, int yPix)
        x = BOARD_WIDTH - 1 - x;
     }
 
-    if(appData.monoMouse && gameMode == EditPosition && clickType == Press && boards[currentMove][y][x] == EmptySquare) {
+    if(appData.monoMouse && gameMode == EditPosition && fromX < 0 && clickType == Press && boards[currentMove][y][x] == EmptySquare) {
        static int dummy;
        RightClick(clickType, xPix, yPix, &dummy, &dummy);
        right = TRUE;
@@ -7495,7 +7495,7 @@ LeftClick (ClickType clickType, int xPix, int yPix)
            return;
        }
     }
-
+printf("to click %d,%d\n",x,y);
     /* fromX != -1 */
     if (clickType == Press && gameMode != EditPosition) {
        ChessSquare fromP;
@@ -7558,6 +7558,12 @@ LeftClick (ClickType clickType, int xPix, int yPix)
        // ignore clicks on holdings
        if(x < BOARD_LEFT || x >= BOARD_RGHT) return;
     }
+printf("A type=%d\n",clickType);
+
+    if(x == fromX && y == fromY && gameMode == EditPosition && SubtractTimeMarks(&lastClickTime, &prevClickTime) < 200) {
+       gatingPiece = boards[currentMove][fromY][fromX]; // prepare to copy rather than move
+       return;
+    }
 
     if (clickType == Release && x == fromX && y == fromY && killX < 0) {
        DragPieceEnd(xPix, yPix); dragging = 0;
@@ -7591,7 +7597,7 @@ LeftClick (ClickType clickType, int xPix, int yPix)
     }
 
     clearFlag = 0;
-
+printf("B\n");
     if(gameMode != EditPosition && !appData.testLegality && !legal[y][x] &&
        fromX >= BOARD_LEFT && fromX < BOARD_RGHT && (x != killX || y != killY) && !sweepSelecting) {
        if(dragging) DragPieceEnd(xPix, yPix), dragging = 0;
@@ -7599,7 +7605,7 @@ LeftClick (ClickType clickType, int xPix, int yPix)
        DrawPosition(TRUE, NULL);
        return; // ignore to-click
     }
-
+printf("(%d,%d)-(%d,%d) %d %d\n",fromX,fromY,toX,toY,x,y);
     /* we now have a different from- and (possibly off-board) to-square */
     /* Completed move */
     if(!sweepSelecting) {