From 863c609797ca6d556dd3a4586fc07a6f4a5472d4 Mon Sep 17 00:00:00 2001 From: Geoff Levand Date: Sun, 12 Apr 2009 15:11:57 +0000 Subject: Add ncurses UI menu Add support for an ncurses UI menu object. Signed-off-by: Geoff Levand Signed-off-by: Jeremy Kerr --- ui/ncurses/nc-menu.h | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 ui/ncurses/nc-menu.h (limited to 'ui/ncurses/nc-menu.h') diff --git a/ui/ncurses/nc-menu.h b/ui/ncurses/nc-menu.h new file mode 100644 index 0000000..b487df9 --- /dev/null +++ b/ui/ncurses/nc-menu.h @@ -0,0 +1,130 @@ +/* + * Copyright (C) 2009 Sony Computer Entertainment Inc. + * Copyright 2009 Sony Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#if !defined(_PB_NC_MENU_H) +#define _PB_NC_MENU_H + +#include +#include + +#include "log/log.h" +#include "pb-protocol/pb-protocol.h" +#include "nc-scr.h" + +struct pmenu; + +/** + * struct pmenu_item - Hold the state of a single menu item. + * @i_sig: Signature for callback type checking, should be pmenu_item_sig. + * @nci: The ncurses menu item instance for this item. + */ + +struct pmenu_item { + enum pb_nc_sig i_sig; + ITEM *nci; + struct pmenu *pmenu; + void *data; + int (*on_edit)(struct pmenu_item *item); + int (*on_execute)(struct pmenu_item *item); +}; + +struct pmenu_item *pmenu_item_alloc(struct pmenu *menu); +struct pmenu_item *pmenu_item_setup(struct pmenu *menu, struct pmenu_item *i, + unsigned int index, const char *name, const char *description); +void pmenu_item_delete(struct pmenu_item *item); + +static inline struct pmenu_item *pmenu_item_from_arg(void *arg) +{ + struct pmenu_item *item = (struct pmenu_item *)arg; + + assert(item->i_sig == pb_item_sig); + return item; +} + +static inline struct pmenu_item *pmenu_item_init(struct pmenu *menu, + unsigned int index, const char *name, const char *description) +{ + return pmenu_item_setup(menu, pmenu_item_alloc(menu), index, name, + description); +} + +/** + * struct pmenu - Data structure defining complete menu. + * @insert_pt: Index in nc item array. + * @ncm: The ncurses menu instance for this menu. + */ + +struct pmenu { + struct nc_scr scr; + MENU *ncm; + ITEM **items; + unsigned int item_count; + unsigned int insert_pt; + int (*hot_key)(struct pmenu *menu, struct pmenu_item *item, int c); + void (*on_exit)(struct pmenu *menu); +}; + +struct pmenu *pmenu_init(void *ui_ctx, unsigned int item_count, + void (*on_exit)(struct pmenu *)); +int pmenu_setup(struct pmenu *menu); +void pmenu_delete(struct pmenu *menu); +unsigned int pmenu_grow(struct pmenu *menu, unsigned int count); +int pmenu_remove(struct pmenu *menu, struct pmenu_item *item); +struct pmenu_item *pmenu_find_selected(struct pmenu *menu); + +/* convenience routines */ + +int pmenu_exit_cb(struct pmenu_item *item); + +static inline struct pmenu *pmenu_from_scr(struct nc_scr *scr) +{ + struct pmenu *pmenu; + + assert(scr->sig == pb_pmenu_sig); + pmenu = (struct pmenu *)((char *)scr + - (size_t)&((struct pmenu *)0)->scr); + assert(pmenu->scr.sig == pb_pmenu_sig); + + return pmenu; +} + +/* debug routines */ + +#if defined(DEBUG) +enum {do_debug = 1}; +#else +enum {do_debug = 0}; +#endif + +static inline void pmenu_dump_item(const ITEM *item) +{ + if (do_debug) + pb_log("%p %s\n", item, (item ? item->name.str : "(null)")); +} + +static inline void pmenu_dump_items(ITEM *const *items, unsigned int count) +{ + unsigned int i; + + if (do_debug) + for (i = 0; i < count; i++) + pb_log("%u: %p %s\n", i, items[i], + (items[i] ? items[i]->name.str : "(null)")); +} + +#endif -- cgit v1.2.1