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133 lines
4.3 KiB
133 lines
4.3 KiB
/*
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Calf Box, an open source musical instrument.
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Copyright (C) 2010-2011 Krzysztof Foltman
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CBOX_MENUITEM_H
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#define CBOX_MENUITEM_H
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#if USE_NCURSES
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#include <glib.h>
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#include <ncurses.h>
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#include <stdint.h>
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struct cbox_menu;
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struct cbox_menu_item;
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struct cbox_menu_item_command;
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struct cbox_menu_item_static;
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struct cbox_menu_item_menu;
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struct cbox_menu_state;
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struct cbox_menu_measure
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{
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int label_width;
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int value_width;
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int height;
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};
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struct cbox_menu_item_class
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{
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void (*measure)(struct cbox_menu_item *item, struct cbox_menu_state *state);
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void (*draw)(struct cbox_menu_item *item, struct cbox_menu_state *state, gchar *value, int hilited);
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gchar *(*format_value)(const struct cbox_menu_item *item, struct cbox_menu_state *state);
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int (*on_key)(struct cbox_menu_item *item, struct cbox_menu_state *state, int key);
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int (*on_idle)(struct cbox_menu_item *item, struct cbox_menu_state *state);
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void (*destroy)(struct cbox_menu_item *item);
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};
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typedef int (*cbox_menu_item_execute_func)(struct cbox_menu_item_command *item, void *context);
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typedef char *(*cbox_menu_item_format_value)(const struct cbox_menu_item_static *item, void *context);
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struct cbox_menu_item
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{
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gchar *label;
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struct cbox_menu_item_class *item_class;
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void *item_context;
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uint32_t flags;
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int x, y;
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/* TODO: is_active? */
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};
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struct cbox_menu_item_command
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{
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struct cbox_menu_item item;
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int (*execute)(struct cbox_menu_item_command *item, void *menu_context);
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};
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struct cbox_menu_item_int
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{
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struct cbox_menu_item item;
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int *value;
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int vmin, vmax;
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const char *fmt;
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int (*on_change)(struct cbox_menu_item_int *item, void *menu_context);
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};
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struct cbox_menu_item_double
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{
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struct cbox_menu_item item;
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double *value;
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double vmin, vmax;
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const char *fmt;
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double step_arg;
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double (*step)(struct cbox_menu_item_double *item, int where);
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int (*on_change)(struct cbox_menu_item_double *item, void *menu_context);
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};
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struct cbox_menu_item_static
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{
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struct cbox_menu_item item;
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char *(*format_value)(const struct cbox_menu_item_static *item, void *menu_context);
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};
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typedef struct cbox_menu *(*create_menu_func)(struct cbox_menu_item_menu *item, void *menu_context);
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struct cbox_menu_item_context
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{
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void (*destroy_func)(void *menu_context);
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};
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struct cbox_menu_item_menu
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{
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struct cbox_menu_item item;
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struct cbox_menu *menu;
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create_menu_func create_menu;
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};
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enum {
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mif_free_label = 1, // release the label on destroy
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mif_free_context = 2, // release the context on destroy
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mif_dup_label = 4 | mif_free_label, // clone the label, release the clone on destroy
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mif_context_is_struct = 8, // cast context to cbox_menu_item_context and call destroy_func on destroy (it may or may not free() itself)
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};
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extern struct cbox_menu_item *cbox_menu_item_new_command(const char *label, cbox_menu_item_execute_func exec, void *item_context, uint32_t flags);
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extern struct cbox_menu_item *cbox_menu_item_new_static(const char *label, cbox_menu_item_format_value fmt, void *item_context, uint32_t flags);
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extern struct cbox_menu_item *cbox_menu_item_new_int(const char *label, int *value, int vmin, int vmax, void *item_context, uint32_t flags);
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extern struct cbox_menu_item *cbox_menu_item_new_menu(const char *label, struct cbox_menu *menu, void *item_context, uint32_t flags);
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extern struct cbox_menu_item *cbox_menu_item_new_dynamic_menu(const char *label, create_menu_func func, void *item_context, uint32_t flags);
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extern void cbox_menu_item_destroy(struct cbox_menu_item *);
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static inline struct cbox_menu_item *cbox_menu_item_new_ok(void)
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{
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return cbox_menu_item_new_menu("OK", NULL, NULL, 0);
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}
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#endif
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#endif
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