qmk_firmware/keyboards/atreus/keymaps/gerb/keymap.c

// This is the personal keymap of Chris Gerber (@gerbercj). I haven't worked out the kinks
// with the Colemak and Dvorak support yet, but everything else works nicely.

#include "atreus.h"

// Each layer gets a name for readability, which is then used in the keymap matrix below.
// The underscores don't mean anything - you can have a layer called STUFF or any other name.
// Layer names don't all need to be of the same length, obviously, and you can also skip them
// entirely and just use numbers.
#define _QW 0
#define _CM 1
#define _DV 2
#define _L1 3
#define _L2 4

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [_QW] = { /* Qwerty */
    {KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_NO,   KC_Y,    KC_U,    KC_I,    KC_O,    KC_P   },
    {KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_NO,   KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN},
    {KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_LALT, KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH},
    {KC_ESC,  KC_TAB,  KC_LGUI, KC_LSFT, KC_BSPC, KC_RCTL, KC_SPC,  MO(_L1), KC_MINS, KC_QUOT, KC_ENT }
  },
  [_CM] = { /* Colemak */
    {KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_NO,   KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN},
    {KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_NO,   KC_H,    KC_N,    KC_E,    KC_I,    KC_O   },
    {KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_LALT, KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH},
    {KC_ESC,  KC_TAB,  KC_LGUI, KC_LSFT, KC_BSPC, KC_RCTL, KC_SPC,  MO(_L1), KC_MINS, KC_QUOT, KC_ENT }
  },
  [_DV] = { /* Dvorak */
    {KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_NO,   KC_F,    KC_G,    KC_C,    KC_R,    KC_L   },
    {KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_NO,   KC_D,    KC_H,    KC_T,    KC_N,    KC_S   },
    {KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_LALT, KC_B,    KC_M,    KC_W,    KC_V,    KC_Z   },
    {KC_ESC,  KC_TAB,  KC_LGUI, KC_LSFT, KC_BSPC, KC_RCTL, KC_SPC,  MO(_L1), KC_MINS, KC_SLSH, KC_ENT }
  },
  [_L1] = { /* LAYER 1 */
    {KC_INS,  KC_HOME, KC_UP,   KC_END,  KC_PGUP, KC_NO,   KC_VOLU, KC_7,    KC_8,    KC_9,    KC_LBRC},
    {KC_DEL,  KC_LEFT, KC_DOWN, KC_RGHT, KC_PGDN, KC_NO,   KC_VOLD, KC_4,    KC_5,    KC_6,    KC_RBRC},
    {KC_GRV,  KC_MPRV, KC_MPLY, KC_MNXT, KC_MINS, KC_LALT, KC_MUTE, KC_1,    KC_2,    KC_3,    KC_BSLS},
    {TG(_L2), KC_APP,  KC_LGUI, KC_LSFT, KC_BSPC, KC_RCTL, KC_SPC,  KC_TRNS, KC_DOT,  KC_0,    KC_EQL }
  },
  [_L2] = { /* LAYER 2 */
    {KC_TRNS, KC_WH_L, KC_MS_U, KC_WH_R, KC_WH_U, KC_NO,   DF(_QW), KC_F7,   KC_F8,   KC_F9,   KC_F10 },
    {KC_TRNS, KC_MS_L, KC_MS_D, KC_MS_R, KC_WH_D, KC_NO,   DF(_CM), KC_F6,   KC_F5,   KC_F6,   KC_F11 },
    {KC_BTN4, KC_BTN1, KC_BTN2, KC_BTN3, KC_BTN4, KC_LALT, DF(_DV), KC_F1,   KC_F2,   KC_F3,   KC_F12 },
    {KC_TRNS, KC_TRNS, KC_LGUI, KC_LSFT, KC_BSPC, KC_RCTL, KC_SPC,  KC_TRNS, KC_TRNS, KC_TRNS, RESET  }
  }
};

const uint16_t PROGMEM fn_actions[] = {

};

const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
{
  // MACRODOWN only works in this function
      switch(id) {
        case 0:
          if (record->event.pressed) {
            register_code(KC_RSFT);
          } else {
            unregister_code(KC_RSFT);
          }
        break;
      }
    return MACRO_NONE;
};