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New infrastructure feature. Games are now permitted to be

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_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]
This commit is contained in:
Simon Tatham
2008-09-06 09:27:56 +00:00
parent c6b1d4472b
commit a7431c0b7c
38 changed files with 303 additions and 55 deletions
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33
gtk.c
View File

@ -79,7 +79,7 @@ void fatal(char *fmt, ...)
* GTK front end to puzzles.
*/
static void update_preset_tick(frontend *fe);
static void changed_preset(frontend *fe);
struct font {
#ifdef USE_PANGO
@ -127,6 +127,7 @@ struct frontend {
int npresets;
GtkWidget **preset_bullets;
GtkWidget *preset_custom_bullet;
GtkWidget *copy_menu_item;
};
void get_random_seed(void **randseed, int *randseedsize)
@ -849,7 +850,7 @@ static void config_ok_button_clicked(GtkButton *button, gpointer data)
else {
fe->cfgret = TRUE;
gtk_widget_destroy(fe->cfgbox);
update_preset_tick(fe);
changed_preset(fe);
}
}
@ -1115,11 +1116,18 @@ static void update_menuitem_bullet(GtkWidget *label, int visible)
}
}
static void update_preset_tick(frontend *fe)
/*
* Called when any other code in this file has changed the
* selected game parameters.
*/
static void changed_preset(frontend *fe)
{
int n = midend_which_preset(fe->me);
int i;
/*
* Update the tick mark in the Type menu.
*/
if (fe->preset_bullets) {
for (i = 0; i < fe->npresets; i++)
update_menuitem_bullet(fe->preset_bullets[i], n == i);
@ -1127,6 +1135,14 @@ static void update_preset_tick(frontend *fe)
if (fe->preset_custom_bullet) {
update_menuitem_bullet(fe->preset_custom_bullet, n < 0);
}
/*
* Update the greying on the Copy menu option.
*/
if (fe->copy_menu_item) {
int enabled = midend_can_format_as_text_now(fe->me);
gtk_widget_set_sensitive(fe->copy_menu_item, enabled);
}
}
static void resize_fe(frontend *fe)
@ -1158,7 +1174,7 @@ static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
midend_set_params(fe->me, params);
midend_new_game(fe->me);
update_preset_tick(fe);
changed_preset(fe);
resize_fe(fe);
}
@ -1388,7 +1404,7 @@ static void menu_load_event(GtkMenuItem *menuitem, gpointer data)
return;
}
update_preset_tick(fe);
changed_preset(fe);
resize_fe(fe);
}
}
@ -1673,7 +1689,7 @@ static frontend *new_window(char *arg, int argtype, char **error)
} else
fe->preset_custom_bullet = NULL;
update_preset_tick(fe);
changed_preset(fe);
} else {
fe->npresets = 0;
fe->preset_bullets = NULL;
@ -1694,13 +1710,16 @@ static frontend *new_window(char *arg, int argtype, char **error)
add_menu_separator(GTK_CONTAINER(menu));
add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", 'r');
if (thegame.can_format_as_text) {
if (thegame.can_format_as_text_ever) {
add_menu_separator(GTK_CONTAINER(menu));
menuitem = gtk_menu_item_new_with_label("Copy");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
GTK_SIGNAL_FUNC(menu_copy_event), fe);
gtk_widget_show(menuitem);
fe->copy_menu_item = menuitem;
} else {
fe->copy_menu_item = NULL;
}
if (thegame.can_solve) {
add_menu_separator(GTK_CONTAINER(menu));