qmk_firmware/keyboards/gboards/butterstick/sten.h

// 2019, g Heavy Industries
// Blessed mother of Christ, please keep this readable
// and protect us from segfaults. For thine is the clock,
// the slave and the master. Until we return from main.
//
// Amen.

#pragma once

#include QMK_KEYBOARD_H
#include "mousekey.h"
#include "keymap_steno.h"
#include "wait.h"

extern size_t keymapsCount;			// Total keymaps
extern uint32_t cChord;				// Current Chord
extern uint32_t stenoLayers[];		// Chords that simulate QMK layers
extern size_t stenoLayerCount;		// Number of simulated layers

// Function defs
void 			processChord(bool useFakeSteno);
uint32_t	processQwerty(bool lookup);
uint32_t 	processFakeSteno(bool lookup);
void 			saveState(uint32_t cChord);
void 			restoreState(void);

// Macros for use in keymap.c
void 			SEND(uint8_t kc);
void 			REPEAT(void);
void 			SET_STICKY(uint32_t);
void 			SWITCH_LAYER(int);
void 			CLICK_MOUSE(uint8_t);

// Keymap helper
#define P(chord, act) if (cChord == (chord)) { if (!lookup) {act;} return chord;}
#define PC(chord, act) if (cChord == (chord)) { if (!lookup) {act;} return chord;} \
	for(int i = 0; i < stenoLayerCount; i++) { \
		uint32_t refChord = stenoLayers[i] | chord; \
		if (cChord == (refChord)) { if (!lookup) {act;} return refChord;}; \
}

// Shift to internal representation
// i.e) S(teno)R(ight)F
#define STN(n) (1L<<n)
enum ORDER { 
		SFN = 0, SPWR, SST1, SST2, SST3, SST4, SNUML, SNUMR,
		SLSU, SLSD, SLT, SLK, SLP, SLW, SLH, SLR, SLA, SLO, 
		SRE, SRU, SRF, SRR, SRP, SRB, SRL, SRG, SRT, SRS, SRD, SRZ, SRES1, SRES2
};

// Break it all out
#define FN	STN(SFN)
#define PWR	STN(SPWR)
#define ST1 STN(SST1)
#define ST2 STN(SST2)
#define ST3 STN(SST3)
#define ST4 STN(SST4)
#define LNO STN(SNUML) 	// STN1-6
#define RNO STN(SNUMR) 	// STN7-C
#define RES1 STN(SRES1) // Use reserved for sticky state
#define RES2 STN(SRES2)

#define LSU STN(SLSU)
#define LSD STN(SLSD)
#define LFT STN(SLT)  	// (L)e(F)t (T), preprocessor conflict
#define LK  STN(SLK)
#define LP  STN(SLP)
#define LW  STN(SLW)
#define LH  STN(SLH)
#define LR  STN(SLR)
#define LA  STN(SLA)
#define LO  STN(SLO)

#define RE  STN(SRE)
#define RU  STN(SRU)
#define RF  STN(SRF)
#define RR  STN(SRR)
#define RP  STN(SRP)
#define RB  STN(SRB)
#define RL  STN(SRL)
#define RG  STN(SRG)
#define RT  STN(SRT)
#define RS  STN(SRS)
#define RD  STN(SRD)
#define RZ  STN(SRZ)