From a7431c0b7ce232f296ebcd70172ca64e58300105 Mon Sep 17 00:00:00 2001 From: Simon Tatham Date: Sat, 6 Sep 2008 09:27:56 +0000 Subject: New infrastructure feature. Games are now permitted to be _conditionally_ able to format the current puzzle as text to be sent to the clipboard. For instance, if a game were to support playing on a square grid and on other kinds of grid such as hexagonal, then it might reasonably feel that only the former could be sensibly rendered in ASCII art; so it can now arrange for the "Copy" menu item to be greyed out depending on the game_params. To do this I've introduced a new backend function (can_format_as_text_now()), and renamed the existing static backend field "can_format_as_text" to "can_format_as_text_ever". The latter will cause compile errors for anyone maintaining a third-party front end; if any such person is reading this, I apologise to them for the inconvenience, but I did do it deliberately so that they'd know to update their front end. As yet, no checked-in game actually uses this feature; all current games can still either copy always or copy never. [originally from svn r8161] --- midend.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'midend.c') diff --git a/midend.c b/midend.c index 87df28a..215482d 100644 --- a/midend.c +++ b/midend.c @@ -1198,9 +1198,18 @@ char *midend_set_config(midend *me, int which, config_item *cfg) return NULL; } +int midend_can_format_as_text_now(midend *me) +{ + if (me->ourgame->can_format_as_text_ever) + return me->ourgame->can_format_as_text_now(me->params); + else + return FALSE; +} + char *midend_text_format(midend *me) { - if (me->ourgame->can_format_as_text && me->statepos > 0) + if (me->ourgame->can_format_as_text_ever && me->statepos > 0 && + me->ourgame->can_format_as_text_now(me->params)) return me->ourgame->text_format(me->states[me->statepos-1].state); else return NULL; -- cgit v1.1