Plaid Keymap for Programmers

keyboards/plaid/keymaps/thehalfdeafchef/config.h

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+/* Copyright 2019 Ian Canino (ian@thecommittedbug.io)
+ *
+ * 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/>.
+ */
+
+#pragma once
+
+// place overrides here

keyboards/plaid/keymaps/thehalfdeafchef/keymap.c

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+#include QMK_KEYBOARD_H
+
+enum plaid_layers {
+    _QWERTY,
+    _DVORAK,
+    _COLEMAK,
+    _LOWER,
+    _RAISE,
+    _FUNCTION,
+};
+
+enum plaid_keycodes { QWERTY = SAFE_RANGE, COLEMAK, DVORAK, LED };
+
+#define LOWER MO(_LOWER)
+#define RAISE MO(_RAISE)
+
+#define LED_ON 1
+#define LED_OFF 0
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+    /* Qwerty
+     * ,-----------------------------------------------------------------------------------.
+     * | Esc  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+     * |------+------+------+------+------+-------------+------+------+------+------+------|
+     * | Tab  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+     * |------+------+------+------+------+------|------+------+------+------+------+------|
+     * | LS/( |   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+     * |------+------+------+------+------+------+------+------+------+------+------+------|
+     * | Ctrl | LGUI | Alt  |   [  |Lower |    Space    |Raise |   ]  | RGUI |   \  | RS/) |
+     * `-----------------------------------------------------------------------------------'
+     */
+    [_QWERTY] = LAYOUT_planck_mit(KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC, KC_TAB, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_LSPO, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT, KC_LCTL, KC_LGUI, KC_LALT, KC_LBRC, LOWER, KC_SPC, RAISE, KC_RBRC, KC_RGUI, KC_BSLS, KC_RSPC),
+
+    /* Colemak
+     * ,-----------------------------------------------------------------------------------.
+     * | Esc  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+     * |------+------+------+------+------+-------------+------+------+------+------+------|
+     * | Tab  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+     * |------+------+------+------+------+------|------+------+------+------+------+------|
+     * | LS/( |   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+     * |------+------+------+------+------+------+------+------+------+------+------+------|
+     * | Ctrl | LGUI | Alt  |   [  |Lower |    Space    |Raise |   ]  | RGUI |   \  | RS/) |
+     * `-----------------------------------------------------------------------------------'
+     */
+
+    [_COLEMAK] = LAYOUT_planck_mit(KC_ESC, KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_SCLN, KC_BSPC, KC_TAB, KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, KC_QUOT, KC_LSPO, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT, KC_LCTL, KC_RALT, KC_LALT, KC_LGUI, LOWER, KC_SPC, RAISE, KC_RBRC, KC_RGUI, KC_BSLS, KC_RSPC),
+
+    /* Dvorak
+     * ,-----------------------------------------------------------------------------------.
+     * | Esc  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+     * |------+------+------+------+------+-------------+------+------+------+------+------|
+     * | Tab  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+     * |------+------+------+------+------+------|------+------+------+------+------+------|
+     * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+     * |------+------+------+------+------+------+------+------+------+------+------+------|
+     * | Ctrl | LGUI | Alt  |   [  |Lower |    Space    |Raise |   ]  | RGUI |   \  | RS/) |
+     * `-----------------------------------------------------------------------------------'
+     */
+
+    [_DVORAK] = LAYOUT_planck_mit(KC_ESC, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_F, KC_G, KC_C, KC_R, KC_L, KC_BSPC, KC_TAB, KC_A, KC_O, KC_E, KC_U, KC_I, KC_D, KC_H, KC_T, KC_N, KC_S, KC_SLSH, KC_LSPO, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_B, KC_M, KC_W, KC_V, KC_Z, KC_ENT, KC_LCTL, KC_RALT, KC_LALT, KC_LGUI, LOWER, KC_SPC, RAISE, KC_RBRC, KC_RGUI, KC_BSLS, KC_RSPC),
+
+    /* LOWER
+     * ,----------------------------------------------------------------------------.
+     * |      |      | MPRV | MPLY | MNXT |     |     |     | PGUP| UP  | PGDN|PSCR |
+     * |------+------+------+------+------+-----+-----+-----+-----+-----------+-----+
+     * |      |      | MUTE | VOLD | VOLU |     |     |     | LEFT| DOWN|RIGHT|     |
+     * |------+------+------+------+------+-----+-----+-----+-----+-----+-----+-----+
+     * |      |      | MAIL | WBAK | WFWD |     |     |     | HOME|     | END |     |
+     * |------+------+------+------+------+-----+-----+-----+-----+-----------+-----+
+     * |      |      |      |      |      |    DEL    |     |     |     |     |     |
+     * `----------------------------------------------------------------------------'
+     */
+
+    [_LOWER] = LAYOUT_planck_mit(KC_NO, KC_NO, KC_MPRV, KC_MPLY, KC_MNXT, KC_NO, KC_NO, KC_NO, KC_PGUP, KC_UP, KC_PGDN, KC_PSCR, KC_NO, KC_NO, KC_MUTE, KC_VOLD, KC_VOLU, KC_NO, KC_NO, KC_NO, KC_LEFT, KC_DOWN, KC_RGHT, KC_NO, KC_NO, KC_NO, KC_MAIL, KC_WBAK, KC_WFWD, KC_NO, KC_NO, KC_NO, KC_HOME, KC_NO, KC_END, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_DEL, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO),
+
+    /* RAISE
+     * ,--------------------------------------------------------------------------------.
+     * | NLCK |  1   |  2   |  3   |  -   |     |     |     |  !   |  #   |  $   |  +   |
+     * |------+------+------+------+------+-----+-----+-----+------+------+------+------+
+     * |   /  |  4   |  5   |  6   |  +   |     |     |     |  %   |  !   |  !   |  =   |
+     * |------+------+------+------+------+-----+-----+-----+------+------+------+------+
+     * |   *  |  7   |  8   |  9   |  ,   |     |     |     |  _   |  -   |  @   |  ~   |
+     * |------+------+------+------+------+-----+-----+-----+------+------+------+------+
+     * |      |  0   |  .   | Ent  |  =   |           |     |      |      |      |  `   |
+     * `--------------------------------------------------------------------------------'
+     */
+
+    [_RAISE] = LAYOUT_planck_mit(KC_NLCK, KC_P1, KC_P2, KC_P3, KC_PMNS, KC_NO, KC_NO, KC_NO, KC_EXLM, KC_HASH, KC_DLR, KC_PLUS, KC_PSLS, KC_P4, KC_P5, KC_P6, KC_PPLS, KC_NO, KC_NO, KC_NO, KC_PERC, KC_ASTR, KC_AMPR, KC_EQL, KC_PAST, KC_P7, KC_P8, KC_P9, KC_PCMM, KC_NO, KC_NO, KC_NO, KC_UNDS, KC_MINS, KC_AT, KC_TILDE, KC_NO, KC_P0, KC_PDOT, KC_PENT, KC_PEQL, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_GRV),
+
+    /* Function (Lower + Raise)
+     * ,-----------------------------------------------------------------------------------------------------------------------.
+     * | RESET| LCA_T(F1)  | LCA_T(F2) | LCA_T(F3) | LCA_T(F4) | LCA_T(F5) | LCA_T(F6) | LCA_T(F7) |      |      |      |      |
+     * |------+------------+-----------+-----------+-----------+-----------+-----------+-----------+------+------+------+------+
+     * |      |            |           |           |           | QWERTY    | DVORAK    | COLEMAK   |      |      |      |      |
+     * |------+------------+-----------+-----------+-----------+-----------+-----------+-----------+------+------+------+------+
+     * |      |            |           |           |           |           |           |           |      |      |      |      |
+     * |------+------------+-----------+-----------+-----------+-----------+-----------+-----------+------+------+------+------+
+     * |      |            |           |           |           |          LED          |           |      |      |      |      |
+     * `-----------------------------------------------------------------------------------------------------------------------'
+     */
+
+    [_FUNCTION] = LAYOUT_planck_mit(RESET, LCA_T(KC_F1), LCA_T(KC_F2), LCA_T(KC_F3), LCA_T(KC_F4), LCA_T(KC_F5), LCA_T(KC_F6), LCA_T(KC_F7), KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, QWERTY, DVORAK, COLEMAK, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, LED, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO)};
+
+// constants to toggle LED behavior
+
+// Setup config struct for LED
+typedef union {
+    uint32_t raw;
+    struct {
+        bool red_mode : 1;
+        bool green_mode : 1;
+    };
+} led_config_t;
+led_config_t led_config;
+
+void keyboard_post_init_user(void) { led_config.raw = eeconfig_read_user(); }
+
+void eeconfig_init_user(void) {  // EEPROM is getting reset!
+    led_config.raw        = 0;
+    led_config.red_mode   = LED_ON;
+    led_config.green_mode = LED_ON;
+    eeconfig_update_user(led_config.raw);
+    eeconfig_update_user(led_config.raw);
+}
+
+// When LOWER and RAISE are held together, go to the FUNCTION layer
+uint32_t layer_state_set_user(uint32_t state) { return update_tri_layer_state(state, _LOWER, _RAISE, _FUNCTION); }
+
+// Runs constantly in the background, in a loop.
+void matrix_scan_user(void) {
+    uint8_t layer = biton32(layer_state);
+
+    switch (layer) {
+        case _LOWER:
+            writePinHigh(LED_RED);
+            break;
+        case _RAISE:
+            writePinHigh(LED_GREEN);
+            break;
+        default:
+            writePinLow(LED_GREEN);
+            writePinLow(LED_RED);
+    }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        case QWERTY:
+            if (record->event.pressed) {
+                set_single_persistent_default_layer(_QWERTY);
+            }
+            return false;
+            break;
+        case COLEMAK:
+            if (record->event.pressed) {
+                set_single_persistent_default_layer(_COLEMAK);
+            }
+            return false;
+            break;
+        case DVORAK:
+            if (record->event.pressed) {
+                set_single_persistent_default_layer(_DVORAK);
+            }
+            return false;
+            break;
+        case LED:
+            if (record->event.pressed) {
+                if (led_config.red_mode == LED_ON && led_config.green_mode == LED_ON) {
+                    led_config.red_mode   = LED_OFF;
+                    led_config.green_mode = LED_OFF;
+                } else if (led_config.red_mode == LED_OFF && led_config.green_mode == LED_OFF) {
+                    led_config.red_mode   = LED_ON;
+                    led_config.green_mode = LED_ON;
+                }
+            }
+            eeconfig_update_user(led_config.raw);
+            return false;
+            break;
+    }
+    return true;
+}

keyboards/plaid/keymaps/thehalfdeafchef/readme.md

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+![Plaid Layout Image](https://i.imgur.com/WnVnwEG.png)
+
+# The Half Deaf Chef Plaid Layout
+
+Opinionated keymaps optimized for programmers. The Left and Right Shift tap as parenthesis and the bracket keys are to either side of the layer keys (LOWER, RAISE). A 'right-side' up number pad in a layer with a complementary 'symbol' pad on the opposite side. An additional layer is provided to switch to virtual console on Linux based systems running xorg. These changes are propagated among all the layouts.