[Keymap] New kbd67/hotswap keymap for writing both code and math (#4933)

* Custom keymap.

* Fix magic layer, enable Unicode.

* Update README.

* Make Unicode config change keymap-local.

* Move magic to AltGr, simplifying layout.

* Changes per Drashna.

* Fix magic+esc = backtick!

* Change reset implementation per Drashna's suggestion.

* Add a few more symbols so long as the commit is open - √ℜℂℤ⊙ℚℕ and the like.

* Typo fix.

* Slight simplification, drop an extra variable.
master
zunger-humu 2019-01-25 09:46:49 -08:00 committed by Drashna Jaelre
parent 4d8eefc694
commit 0ba9620d65
4 changed files with 227 additions and 0 deletions

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/* Copyright 2018 MechMerlin
*
* 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
// Enable cmd-option-escape on mac.
#define GRAVE_ESC_ALT_OVERRIDE
// place overrides here

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/* Copyright 2019 Yonatan Zunger
*
* 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
enum custom_keycodes {
// Use this instead of RALT, so we can use it to switch layers but not trigger other alt-related
// behavior (like GRAVE_ESC_ALT_OVERRIDE).
MAGIC = SAFE_RANGE,
};
enum layers_keymap {
_QWERTY = 0,
_FUNCTION,
_MAGIC,
_SHIFTMAGIC,
};
// This is so that H(xxxx) has the same width as _______, which makes the grids more legible.
#define H(x) UC(0x##x)
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
/* Keymap (Base Layer) Default Layer
* ,----------------------------------------------------------------.
* |Esc | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Del|Brk|Home|
* |----------------------------------------------------------------|
* |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \ |End |
* |----------------------------------------------------------------|
* |Ctrl | A| S| D| F| G| H| J| K| L| ;| '|Return |PgUp|
* |----------------------------------------------------------------|
* |Shift | Z| X| C| V| B| N| M| ,| .| /|Shift | Up|PgDn|
* |----------------------------------------------------------------|
* |Ctrl|Alt |Win | Space |Alt| FN |||||Lef|Dow|Rig |
* `----------------------------------------------------------------'
*/
[_QWERTY] = LAYOUT(
KC_GESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_BRK, KC_HOME, \
KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_END, \
KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT, KC_PGUP, \
KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, KC_PGDN, \
KC_LCTL, KC_LALT, KC_LGUI, KC_SPC, MAGIC, MO(_FUNCTION), KC_LEFT, KC_DOWN, KC_RGHT),
/* Keymap Fn Layer. Blank keys are deliberately NO, not TRNS.
* ,----------------------------------------------------------------.
* |Rst |F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|F13|PSc|PAUS|
* |----------------------------------------------------------------|
* |Debug| | | | | | | | | | | | | | |
* |----------------------------------------------------------------|
* |Ctrl | |Vo+| | | | | | | | | | | |
* |----------------------------------------------------------------|
* |Shift |REV|Vo-|FWD| | | | | | | | McL|MsU|McR |
* |----------------------------------------------------------------|
* |Ctrl|Alt |Win | |Alt| |||||MsL|MsD|MsR |
* `----------------------------------------------------------------'
*/
[_FUNCTION] = LAYOUT(
RESET, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_F13, KC_PSCR, KC_MPLY, \
DEBUG, 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__VOLUP, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, \
_______, KC_MRWD, KC__VOLDOWN, KC_MFFD, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_BTN1, KC_MS_U, KC_BTN2, \
_______, _______, _______, KC_NO, _______, _______, KC_MS_L, KC_MS_D, KC_MS_R),
/* Mathematical lower layer. Blank keys are TRNS.
* Note that escape turns into grave here. This doesn't just generalize GRAVE_ESC; it means that
* magic+esc is a way to create backticks without a dedicated key.
* ,----------------------------------------------------------------.
* | ` | ¹| ² | ³ | | | | | | | | | | | | |
* |----------------------------------------------------------------|
* | | ± | ω | ε | ρ | τ | θ | υ | ι | ο | π | | | | |
* |----------------------------------------------------------------|
* | | α | σ | δ | φ | γ | η | | κ | λ | | | | |
* |----------------------------------------------------------------|
* | | ζ | ξ | χ | ψ | β | ν | μ | | | | | | |
* |----------------------------------------------------------------|
* | | | | | | ||||| | | |
* `----------------------------------------------------------------'
*/
[_MAGIC] = LAYOUT(
KC_GRV, H(00b9), H(00b2), H(00b3), H(2074), H(2075), H(2076), H(2077), H(2078), H(2079), H(2070), H(207b), H(207a), H(2295), H(2260), H(221a), \
_______, H(00b1), H(03c9), H(03b5), H(03c1), H(03c4), H(03b8), H(03c5), H(03b9), H(03bf), H(03c0), H(2203), H(2200), H(211a), H(211d), \
_______, H(03b1), H(03c3), H(03b4), H(03c6), H(03b3), H(03b7), H(2205), H(03ba), H(03bb), H(2228), H(2227), _______, H(2115), \
_______, H(03b6), H(03be), H(03c7), H(03c8), H(03b2), H(03bd), H(03bc), H(2272), H(2273), H(2208), _______, H(2191), H(2194), \
_______, _______, _______, _______, _______, _______, H(2190), H(2193), H(2192)),
/* Mathematical upper layer. Blank keys are TRNS.
* ,----------------------------------------------------------------.
* | ` | | | | | | | | | | | | | | | |
* |----------------------------------------------------------------|
* | | | Ω | Ε | Ρ | Τ | Θ | Υ | Ι | Ο | Π | | | | |
* |----------------------------------------------------------------|
* | | Α | Σ | Δ | Φ | Γ | Η | ¬ | Κ | Λ | | | | |
* |----------------------------------------------------------------|
* | | Ζ | Ξ | Χ | Ψ | Β | Ν | Μ | | | | | | |
* |----------------------------------------------------------------|
* | | | | | | ||||| | | |
* `----------------------------------------------------------------'
*/
[_SHIFTMAGIC] = LAYOUT(
KC_GRV, H(2081), H(2082), H(2083), H(2084), H(2085), H(2086), H(2087), H(2088), H(2089), H(2080), H(208b), H(208a), H(2297), H(2248), H(2202), \
_______, H(2213), H(03a9), H(0395), H(03a1), H(03a4), H(0398), H(03a5), H(0399), H(039f), H(03a0), H(2204), H(221e), H(2299), H(2102), \
_______, H(0391), H(03a3), H(0394), H(03a6), H(0393), H(0397), H(00ac), H(039a), H(039b), H(222a), H(2229), _______, H(2124), \
_______, H(0396), H(039e), H(03a7), H(03a8), H(0392), H(039d), H(039c), H(2286), H(2287), H(2209), _______, H(21d1), H(21d4), \
_______, _______, _______, _______, _______, _______, H(21d0), H(21d3), H(21d2)),
};
// Layer bitfields.
#define MAGIC_LAYER (1UL << _MAGIC)
#define SHIFTMAGIC_LAYER (1UL << _SHIFTMAGIC)
// The layers we don't touch.
#define LAYER_MASK ~(MAGIC_LAYER|SHIFTMAGIC_LAYER)
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
// Activate the appropriate magic layer:
// User is holding AltGr+Shift => _SHIFTMAGIC
// User is holding AltGr => _MAGIC
// Not holding AltGr => None
// We do this the efficient way, by grabbing the non-magic bits from the current layer bitmap,
// setting the appropriate magic or shiftmagic bit, and doing an absolute layer set. (Layer
// sets are nontrivial, so we don't want to do extras!)
// We track shift and AltGr state on our own, because this function is called before get_mods is
// updated!
static bool shifted = false;
static bool magic = false;
if (keycode == KC_LSHIFT || keycode == KC_RSHIFT) {
shifted = record->event.pressed;
} else if (keycode == MAGIC) {
magic = record->event.pressed;
} else if (keycode == RESET) {
// Safe reset: Only actually let this keycode through if shift is held as well. Since there's no
// right-shift in the function layer, this means that reset is Fn+LShift+Esc, something you're
// not likely to hit by accident. (Especially since AltGr+Esc is backtick!)
return (record->event.pressed && shifted);
}
// Update the layer.
uint32_t new_layer_state = layer_state & LAYER_MASK;
if (magic) {
new_layer_state |= (shifted ? SHIFTMAGIC_LAYER : MAGIC_LAYER);
}
if (layer_state != new_layer_state) {
layer_state_set(new_layer_state);
}
return true;
}
void eeconfig_init_user(void) {
set_unicode_input_mode(UC_OSX);
}
void matrix_init_user(void) {
}
void matrix_scan_user(void) {
}
void led_set_user(uint8_t usb_led) {
}

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* Custom keymap for kbd67, for those who need to both code and type math.
* Author: Yonatan Zunger (zunger@gmail.com)
This keymap is presently rather Mac-centric, as it uses Mac media keys in its function layer and the
OS X Unicode input mode for the "magic" layers.
*Layer 0 (Base QWERTY):* The layout has a few minor quirks: grave escape, Home/End/PgUp/PgDn in the
right-hand column (rather than the more common Home/PgUp/PgDn/End), and a pause key between
backspace and home -- this being something I use for screen lock, a necessity when one works with
and sits next to security engineers. (Using a heavier switch on the pause key greatly reduces the
risk of accidental triggering) In OS X style, alt and win are swapped on the left-hand side.
The right-hand alt and gui keys take on a different meaning: right-alt lives up to its old name of
AltGr by invoking Greek (the "magic" layers, 2 and 3), and right-gui invokes the function layer.
*Layer 1 (Functions):* This layer deliberately sets KC_NO for the keys it doesn't use. I realize
this isn't common, but I like to keep my functions quite distinct from all other layers.
RESET can be accessed at Fn+Left Shift+Escape.
*Layers 2 and 3*: These are invoked by the "magic" key (AltGr) and by magic+shift. The
letters mostly produce Greek; the numbers, superscripts (magic) and subscripts (magic+shift); and
the various other keys, mathematical symbols. There unfortunately aren't nearly enough keys for all
the symbols I'd like, so magic+alt and magic+alt+shift may end up existing as well, giving this a
proper Space Cadet effect; but that said, it's going to be hard to remember where all these symbols
are without some extremely custom keycaps. In the limit of arbitrarily complex layers, the keyboard
will probably start running LISP and turn into EMACS.

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# You need Unicode for this map.
UNICODE_ENABLE = yes # Unicode