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#include "eve.h"
#include "eve_kbd.h"
#define FLAG_SHIFT 0x01
#define FLAG_CTRL 0x02
#define FLAG_FN 0x04
#define KEY_SHIFT 0x11
#define KEY_CTRL 0x12
#define KEY_FN 0x13
#define KEY_DEL 0x08
#define KEY_RET 0x0a
#define KEYS_Y 575
#define KEYS_FSIZE 29
#define KEYS_HEIGHT 40
#define KEYS_RSIZE 45
void eos_kbd_init(EOSKbd *kbd, eos_kbd_fptr_t key_down_f, uint32_t mem_addr, uint32_t *mem_next) {
eos_eve_write16(REG_CMD_DL, 0);
eos_kbd_update(kbd);
eos_eve_cmd_exec(1);
kbd->mem_addr = mem_addr;
kbd->mem_size = eos_eve_read16(REG_CMD_DL);
kbd->key_modifier = 0;
kbd->key_count = 0;
kbd->key_down = 0;
kbd->key_down_f = key_down_f;
eos_eve_cmd(CMD_MEMCPY, "www", kbd->mem_addr, EVE_RAM_DL, kbd->mem_size);
eos_eve_cmd_exec(1);
*mem_next = kbd->mem_addr + kbd->mem_size;
}
void eos_kbd_draw(EOSKbd *kbd, uint8_t tag0, int touch_idx) {
uint8_t evt;
EOSTouch *t = eos_touch_evt(tag0, touch_idx, 1, 127, &evt);
if (t && evt) {
if (evt & EOS_TOUCH_ETYPE_DOWN) {
uint8_t _tag = t->tag;
if (_tag >= KEY_SHIFT && _tag <= KEY_FN) {
if (touch_idx == 0) {
uint8_t f = (1 << (_tag - KEY_SHIFT));
kbd->key_modifier = f;
kbd->key_modifier_sticky &= f;
kbd->key_modifier_lock &= f;
if (kbd->key_modifier_lock & f) {
kbd->key_modifier_lock &= ~f;
} else if (kbd->key_modifier_sticky & f) {
kbd->key_modifier_sticky &= ~f;
kbd->key_modifier_lock |= f;
} else {
kbd->key_modifier_sticky |= f;
}
}
} else {
kbd->key_count++;
kbd->key_down = _tag;
if (kbd->key_down_f) {
int c = _tag;
if ((kbd->key_modifier & FLAG_CTRL) && (_tag >= '?') && (_tag <= '_')) c = (_tag - '@') & 0x7f;
kbd->key_down_f(c);
}
}
}
if (evt & EOS_TOUCH_ETYPE_UP) {
uint8_t _tag = t->tag_prev;
if (_tag >= KEY_SHIFT && _tag <= KEY_FN) {
if (touch_idx == 0) {
uint8_t f = (1 << (_tag - KEY_SHIFT));
if (!((kbd->key_modifier_lock | kbd->key_modifier_sticky) & f)) {
kbd->key_modifier &= ~f;
}
}
} else {
if (kbd->key_count) kbd->key_count--;
if (!kbd->key_count) kbd->key_down = 0;
if (kbd->key_modifier_sticky) {
if (touch_idx == 0) kbd->key_modifier &= ~kbd->key_modifier_sticky;
kbd->key_modifier_sticky = 0;
}
}
}
eos_kbd_update(kbd);
} else {
eos_eve_cmd(CMD_APPEND, "ww", kbd->mem_addr, kbd->mem_size);
}
}
void eos_kbd_update(EOSKbd *kbd) {
eos_eve_cmd_dl(SAVE_CONTEXT());
eos_eve_cmd(CMD_KEYS, "hhhhhhs", 0, KEYS_Y + KEYS_RSIZE * 0, 480, KEYS_HEIGHT, KEYS_FSIZE, kbd->key_down, kbd->key_modifier & (FLAG_FN | FLAG_SHIFT) ? "!@#$%^&*()" : (kbd->key_modifier & FLAG_CTRL ? " @[\\]^_? " : "1234567890"));
eos_eve_cmd(CMD_KEYS, "hhhhhhs", 0, KEYS_Y + KEYS_RSIZE * 1, 480, KEYS_HEIGHT, KEYS_FSIZE, kbd->key_down, kbd->key_modifier & FLAG_FN ? "-_=+[]{}\\|" : kbd->key_modifier & (FLAG_SHIFT | FLAG_CTRL) ? "QWERTYUIOP" : "qwertyuiop");
eos_eve_cmd(CMD_KEYS, "hhhhhhs", 24, KEYS_Y + KEYS_RSIZE * 2, 432, KEYS_HEIGHT, KEYS_FSIZE, kbd->key_down, kbd->key_modifier & FLAG_FN ? "`~ ;:'\"" : kbd->key_modifier & (FLAG_SHIFT | FLAG_CTRL) ? "ASDFGHJKL" : "asdfghjkl");
eos_eve_cmd(CMD_KEYS, "hhhhhhs", 72, KEYS_Y + KEYS_RSIZE * 3, 335, KEYS_HEIGHT, KEYS_FSIZE, kbd->key_down, kbd->key_modifier & FLAG_FN ? " ,.<>/?" : kbd->key_modifier & (FLAG_SHIFT | FLAG_CTRL) ? "ZXCVBNM" : "zxcvbnm");
eos_eve_cmd_dl(TAG(KEY_SHIFT));
eos_eve_cmd(CMD_BUTTON, "hhhhhhs", 0, KEYS_Y + KEYS_RSIZE * 3, 69, KEYS_HEIGHT, 21, kbd->key_modifier & FLAG_SHIFT ? EVE_OPT_FLAT : 0, "shift");
eos_eve_cmd_dl(TAG(KEY_DEL));
eos_eve_cmd(CMD_BUTTON, "hhhhhhs", 410, KEYS_Y + KEYS_RSIZE * 3, 70, KEYS_HEIGHT, 21, kbd->key_down == KEY_DEL ? EVE_OPT_FLAT : 0, "del");
eos_eve_cmd_dl(TAG(KEY_FN));
eos_eve_cmd(CMD_BUTTON, "hhhhhhs", 0, KEYS_Y + KEYS_RSIZE * 4, 69, KEYS_HEIGHT, 21, kbd->key_modifier & FLAG_FN ? EVE_OPT_FLAT : 0, "fn");
eos_eve_cmd_dl(TAG(KEY_CTRL));
eos_eve_cmd(CMD_BUTTON, "hhhhhhs", 72, KEYS_Y + KEYS_RSIZE * 4, 69, KEYS_HEIGHT, 21, kbd->key_modifier & FLAG_CTRL ? EVE_OPT_FLAT : 0, "ctrl");
eos_eve_cmd_dl(TAG(' '));
eos_eve_cmd(CMD_BUTTON, "hhhhhhs", 144, KEYS_Y + KEYS_RSIZE * 4, 263, KEYS_HEIGHT, 21, kbd->key_down == ' ' ? EVE_OPT_FLAT : 0, "");
eos_eve_cmd_dl(TAG(KEY_RET));
eos_eve_cmd(CMD_BUTTON, "hhhhhhs", 410, KEYS_Y + KEYS_RSIZE * 4, 69, KEYS_HEIGHT, 21, kbd->key_down == KEY_RET ? EVE_OPT_FLAT : 0, "ret");
eos_eve_cmd_dl(RESTORE_CONTEXT());
}
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