common/layer_stack.h

   1 /*
   2 Copyright 2013 Jun Wako <wakojun@gmail.com>
   3
   4 This program is free software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17 #ifndef LAYER_STACK_H
  18 #define LAYER_STACK_H
  19
  20 #include <stdint.h>
  21 #include "action.h"
  22
  23
  24 /*
  25  * Layer stack
  26  */
  27 #define LAYER_STACK_SIZE 8
  28 typedef struct {
  29     uint8_t layer:4;
  30     uint8_t next:3;
  31     bool    used;
  32 } layer_item_t;
  33
  34
  35 bool layer_stack_push(uint8_t layer);
  36 bool layer_stack_pop(void);
  37 bool layer_stack_remove(uint8_t layer);
  38 bool layer_stack_remove_then_push(uint8_t layer);
  39 bool layer_stack_remove_or_push(uint8_t layer);
  40 void layer_stack_debug(void);
  41 action_t layer_stack_get_action(key_t key);
  42
  43 #endif
  44