Keymap Updates for DMQ Design SPIN, Boardsource 4x12, and Gingham (#9911)

* Updating keymaps for Gingham and DMQ Design SPIN and adding keymap for BoardSource 4x12

* Update keyboards/boardsource/4x12/keymaps/codecoffeecode/keymap.c

keyboards/dmqdesign/spin/keymaps/codecoffeecode/keymap.c

@@ -0,0 +1,51 @@
+/* Copyright 2020 codecoffeecode
+ *
+ * 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] = LAYOUT(
+      KC_HOME,              KC_UP,   KC_END,   /*|*/ KC_TRNS,
+      KC_LEFT,              KC_DOWN, KC_RIGHT, /*|*/ KC_TRNS,
+      KC_MPRV,              KC_MPLY, KC_MNXT,  /*|*/ KC_TRNS,
+      LCTL(LSFT(KC_ESC)),   RGB_TOG, LGUI(KC_L)
+      ),
+};
+
+void encoder_update_user(uint8_t index, bool clockwise) {
+    switch(index) {
+      case 0:
+        if (clockwise) {
+          tap_code(KC_VOLU); // Volume
+        } else {
+          tap_code(KC_VOLD);
+        }
+        break;
+      case 1:
+        if (clockwise) {
+          tap_code(KC_MS_WH_DOWN);  // Scroll
+        } else {
+          tap_code(KC_MS_WH_UP);
+        }
+        break;
+      case 2:
+        if (clockwise) {
+          rgblight_increase_hue(); // RGB Hue
+        } else {
+          rgblight_decrease_hue();
+        }
+        break;
+    }
+}