X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fgadgets.c;h=56c359bcc1a0e636c658430e578ef1e5f6e169e5;hb=0359b2734a5f3014bde4563756fbc9cdb0be62f7;hp=1004199f40d45bdd9cf405ca4398a71f1e75d045;hpb=f73405762b7a66ebed17c0f6fa56e909d7e5626f;p=rocksndiamonds.git

diff --git a/src/libgame/gadgets.c b/src/libgame/gadgets.c
index 1004199f..56c359bc 100644
--- a/src/libgame/gadgets.c
+++ b/src/libgame/gadgets.c
@@ -4,7 +4,7 @@
 // (c) 1995-2014 by Artsoft Entertainment
 //     		    Holger Schemel
 //		    info@artsoft.org
-//		    http://www.artsoft.org/
+//		    https://www.artsoft.org/
 // ----------------------------------------------------------------------------
 // gadgets.c
 // ============================================================================
@@ -78,7 +78,7 @@ static int getNewGadgetID(void)
   }
 
   if (next_free_gadget_id <= 0)		// cannot get new gadget id
-    Error(ERR_EXIT, "too much gadgets -- this should not happen");
+    Fail("too much gadgets -- this should not happen");
 
   return id;
 }
@@ -808,7 +808,8 @@ static void DrawGadget_OverlayTouchButton(struct GadgetInfo *gi)
   int alpha_max = SDL_ALPHA_OPAQUE;
   int alpha_step = ALPHA_FADING_STEPSIZE(alpha_max);
 
-  if (gi->mapped)
+  // only show mapped overlay touch buttons if touch screen is really used
+  if (gi->mapped && runtime.uses_touch_device)
   {
     if (alpha < alpha_max)
       alpha = MIN(alpha + alpha_step, alpha_max);
@@ -883,7 +884,7 @@ static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
 
   while (tag != GDI_END)
   {
-    switch(tag)
+    switch (tag)
     {
       case GDI_IMAGE_ID:
 	gi->image_id = va_arg(ap, int);
@@ -1206,7 +1207,7 @@ static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
 	break;
 
       default:
-	Error(ERR_EXIT, "HandleGadgetTags(): unknown tag %d", tag);
+	Fail("HandleGadgetTags(): unknown tag %d", tag);
     }
 
     tag = va_arg(ap, int);	// read next tag
@@ -1267,7 +1268,7 @@ static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
     gi->height = 2 * border_ysize + font_height;
 
     if (gi->selectbox.options == NULL)
-      Error(ERR_EXIT, "selectbox gadget incomplete (missing options array)");
+      Fail("selectbox gadget incomplete (missing options array)");
 
     gi->selectbox.num_values = 0;
     while (gi->selectbox.options[gi->selectbox.num_values].text != NULL)
@@ -1329,7 +1330,7 @@ static void HandleGadgetTags(struct GadgetInfo *gi, int first_tag, va_list ap)
 
     if (gi->width == 0 || gi->height == 0 ||
 	gs->items_max == 0 || gs->items_visible == 0)
-      Error(ERR_EXIT, "scrollbar gadget incomplete (missing tags)");
+      Fail("scrollbar gadget incomplete (missing tags)");
 
     // calculate internal scrollbar values
     gs->size_min = (gi->type == GD_TYPE_SCROLLBAR_VERTICAL ?
@@ -1478,6 +1479,10 @@ static void MapGadgetExt(struct GadgetInfo *gi, boolean redraw)
   if (gi == NULL || gi->deactivated || gi->mapped)
     return;
 
+  // do not map overlay touch buttons if touch screen is not used
+  if (gi->overlay_touch_button && !runtime.uses_touch_device)
+    return;
+
   gi->mapped = TRUE;
 
   if (redraw)