3.0 KiB
Swap-Hands Action
The swap-hands action allows support for one-handed typing without requiring a separate layer. Set SWAP_HANDS_ENABLE in the Makefile and define a hand_swap_config entry in your keymap. Now whenever the ACTION_SWAP_HANDS command key is pressed the keyboard is mirrored. For instance, to type "Hello, World" on QWERTY you would type ^Ge^s^s^w^c W^wr^sd
Configuration
The configuration table is a simple 2-dimensional array to map from column/row to new column/row. Example hand_swap_config for Planck:
const keypos_t PROGMEM hand_swap_config[MATRIX_ROWS][MATRIX_COLS] = {
{{11, 0}, {10, 0}, {9, 0}, {8, 0}, {7, 0}, {6, 0}, {5, 0}, {4, 0}, {3, 0}, {2, 0}, {1, 0}, {0, 0}},
{{11, 1}, {10, 1}, {9, 1}, {8, 1}, {7, 1}, {6, 1}, {5, 1}, {4, 1}, {3, 1}, {2, 1}, {1, 1}, {0, 1}},
{{11, 2}, {10, 2}, {9, 2}, {8, 2}, {7, 2}, {6, 2}, {5, 2}, {4, 2}, {3, 2}, {2, 2}, {1, 2}, {0, 2}},
{{11, 3}, {10, 3}, {9, 3}, {8, 3}, {7, 3}, {6, 3}, {5, 3}, {4, 3}, {3, 3}, {2, 3}, {1, 3}, {0, 3}},
};
Note that the array indices are reversed same as the matrix and the values are of type keypos_t which is {col, row} and all values are zero-based. In the example above, hand_swap_config[2][4] (third row, fifth column) would return {7, 2} (third row, eighth column). Yes, this is confusing.
Swap Keycodes
| Key | Description |
|---|---|
SH_T(key) |
Sends key with a tap; momentary swap when held. |
SH_ON |
Turns on swapping and leaves it on. |
SH_OFF |
Turn off swapping and leaves it off. Good for returning to a known state. |
SH_MON |
Swaps hands when pressed, returns to normal when released (momentary). |
SH_MOFF |
Momentarily turns off swap. |
SH_TG |
Toggles swap on and off with every key press. |
SH_TT |
Momentary swap when held, toggles with repeated taps (see below). |
SH_OS |
One shot swap hands: toggles while pressed or until next key press. |
SH_TT swap-hands tap-toggle key is similar to layer tap-toggle. Tapping repeatedly (5 taps by default) will toggle swap-hands on or off, like SH_TG. Tap-toggle count can be changed by defining a value for TAPPING_TOGGLE.
Encoder Mapping
When using an encoder mapping, it's also able to handle swapping encoders between sides, too.
Encoder indexes are defined as left-to-right, and the extent of the array needs to match the number of encoders on the keyboard.
As an example, if a split keyboard has a single encoder per side, you can swap the order by using the following code in your keymap:
#if defined(SWAP_HANDS_ENABLE) && defined(ENCODER_MAP_ENABLE)
const uint8_t PROGMEM encoder_hand_swap_config[NUM_ENCODERS] = { 1, 0 };
#endif