From http://www.jwz.org/xscreensaver/xscreensaver-5.35.tar.gz

[xscreensaver] / hacks / maze.c

diff --git a/hacks/maze.c b/hacks/maze.c
index 8576386b2ae9c4aba0af4c135c21830fcef9ce89..9afe44159c2c59a5eff02d263b32ae9cb371cc44 100644 (file)
--- a/hacks/maze.c
+++ b/hacks/maze.c
@@ -93,10 +93,11 @@
 #include  <stdio.h>
 
 /* #include  <X11/bitmaps/gray1> */
+/*
 #define gray1_width  2
 #define gray1_height 2
 static const char gray1_bits[] = { 0x01, 0x02 };
-
+*/
 
 #define MAX_MAZE_SIZE_X        1000
 #define MAX_MAZE_SIZE_Y        1000
@@ -870,8 +871,10 @@ static int
 backup (struct state *st)                                          /* back up a move */
 {
   st->sqnum--;
-  st->cur_sq_x = st->move_list[st->sqnum].x;
-  st->cur_sq_y = st->move_list[st->sqnum].y;
+  if (st->sqnum >= 0) {
+    st->cur_sq_x = st->move_list[st->sqnum].x;
+    st->cur_sq_y = st->move_list[st->sqnum].y;
+  }
   return ( st->sqnum );
 }
 
@@ -1467,6 +1470,10 @@ maze_init (Display *dpy_arg, Window window_arg)
   XSetForeground (st->dpy, st->erase_gc, bg);
   XSetBackground (st->dpy, st->erase_gc, bg);
 
+# ifdef HAVE_JWXYZ
+  jwxyz_XSetAntiAliasing (st->dpy, st->gc, False);
+# endif
+
   {
     Window r;
     int x, y;
@@ -1588,6 +1595,9 @@ maze_draw (Display *dpy, Window window, void *closure)
         st->stop = 0;
         st->state = 1;
 
+        if (st->solve_state && st->solve_state->running)
+          st->solve_state->running = 0;
+
         st->sync_p = ((random() % 4) != 0);
 
         size = get_integer_resource (st->dpy, "gridSize", "Dimension");
@@ -1608,9 +1618,8 @@ static Bool
 maze_event (Display *dpy, Window window, void *closure, XEvent *event)
 {
   struct state *st = (struct state *) closure;
-  switch (event->type) 
+  if (event->type == ButtonPress)
     {
-    case ButtonPress:
       switch (event->xbutton.button) 
         {
         case 2:
@@ -1627,14 +1636,17 @@ maze_event (Display *dpy, Window window, void *closure, XEvent *event)
           st->stop = 0 ;
           return True;
         }
-      break;
-
-    case Expose:
+    }
+  else if (event->type == Expose)
+    {
       st->restart = 1;
-      break;
-
-    default:
-      break;
+      return False;
+    }
+  else if (screenhack_event_helper (dpy, window, event))
+    {
+      st->restart = 1 ;
+      st->stop = 0 ;
+      return True;
     }
   return False;
 }