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#include <stdlib.h>
#include "eve.h"
#include "eve_kbd.h"
#define KBD_X 0
#define KBD_Y 575
#define KBD_W 480
#define KBD_H 225
#define KEY_SPACERX 3
#define KEY_SPACERY 5
#define KEY_FONT 29
#define MOD_FONT 21
#define KEY_BS 0x08
#define KEY_RET 0x0a
#define FLAG_SHIFT 0x01
#define FLAG_CTRL 0x02
#define FLAG_FN 0x04
#define TAG_SHIFT 0x11
#define TAG_CTRL 0x12
#define TAG_FN 0x13
void eve_kbd_init(EVEKbd *kbd, uint32_t mem_addr, uint32_t *mem_next) {
uint16_t mem_size;
kbd->x = KBD_X;
kbd->y = KBD_Y;
kbd->w = KBD_W;
kbd->h = KBD_H;
kbd->mem_addr = mem_addr;
kbd->key_modifier = 0;
kbd->key_count = 0;
kbd->key_down = 0;
kbd->putc = NULL;
kbd->active = 1;
eve_write16(REG_CMD_DL, 0);
eve_kbd_draw(kbd);
eve_cmd_exec(1);
mem_size = eve_read16(REG_CMD_DL);
eve_cmd(CMD_MEMCPY, "www", mem_addr, EVE_RAM_DL, mem_size);
eve_cmd_exec(1);
kbd->active = 0;
kbd->mem_size = mem_size;
*mem_next = kbd->mem_addr + kbd->mem_size;
}
void eve_kbd_set_handler(EVEKbd *kbd, eve_kbd_input_handler_t putc) {
kbd->putc = putc;
}
int eve_kbd_touch(EVEKbd *kbd, uint8_t tag0, int touch_idx, void *w) {
EVETouch *t;
uint16_t evt;
t = eve_touch_evt(tag0, touch_idx, 1, 0x7e, &evt);
if (t && evt) {
if (evt & EVE_TOUCH_ETYPE_TAG) {
uint8_t _tag = t->tag;
if (_tag >= TAG_SHIFT && _tag <= TAG_FN) {
if (touch_idx == 0) {
uint8_t f = (1 << (_tag - TAG_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->putc) {
int c = _tag;
if ((kbd->key_modifier & FLAG_CTRL) && (_tag >= '?') && (_tag <= '_')) c = (_tag - '@') & 0x7f;
kbd->putc(w, c);
}
}
}
if (evt & EVE_TOUCH_ETYPE_TAG_UP) {
uint8_t _tag = t->tag_up;
if (_tag >= TAG_SHIFT && _tag <= TAG_FN) {
if (touch_idx == 0) {
uint8_t f = (1 << (_tag - TAG_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;
}
}
}
kbd->active = 1;
} else {
kbd->active = 0;
}
return kbd->active;
}
uint8_t eve_kbd_draw(EVEKbd *kbd) {
if (kbd->active) {
int x = kbd->x;
int y = kbd->y;
int w = kbd->w;
int row_h = kbd->h / 5;
int key_w = (w - 9 * KEY_SPACERX) / 10 + 1;
int mod_w = key_w + key_w / 2;
int key_h = row_h - KEY_SPACERY;
eve_cmd_dl(SAVE_CONTEXT());
eve_cmd(CMD_KEYS, "hhhhhhs", x, y + row_h * 0, w, key_h, KEY_FONT, kbd->key_down, kbd->key_modifier & (FLAG_FN | FLAG_SHIFT) ? "!@#$%^&*()" : (kbd->key_modifier & FLAG_CTRL ? " @[\\]^_? " : "1234567890"));
eve_cmd(CMD_KEYS, "hhhhhhs", x, y + row_h * 1, w, key_h, KEY_FONT, kbd->key_down, kbd->key_modifier & FLAG_FN ? "-_=+[]{}\\|" : kbd->key_modifier & (FLAG_SHIFT | FLAG_CTRL) ? "QWERTYUIOP" : "qwertyuiop");
eve_cmd(CMD_KEYS, "hhhhhhs", x + key_w / 2, y + row_h * 2, w - key_w, key_h, KEY_FONT, kbd->key_down, kbd->key_modifier & FLAG_FN ? "`~ ;:'\"" : kbd->key_modifier & (FLAG_SHIFT | FLAG_CTRL) ? "ASDFGHJKL" : "asdfghjkl");
eve_cmd(CMD_KEYS, "hhhhhhs", x + mod_w + KEY_SPACERX, y + row_h * 3, w - 2 * (mod_w + KEY_SPACERX), key_h, KEY_FONT, kbd->key_down, kbd->key_modifier & FLAG_FN ? " ,.<>/?" : kbd->key_modifier & (FLAG_SHIFT | FLAG_CTRL) ? "ZXCVBNM" : "zxcvbnm");
eve_cmd_dl(TAG(TAG_SHIFT));
eve_cmd(CMD_BUTTON, "hhhhhhs", x, y + row_h * 3, mod_w, key_h, MOD_FONT, kbd->key_modifier & FLAG_SHIFT ? EVE_OPT_FLAT : 0, "shift");
eve_cmd_dl(TAG(KEY_BS));
eve_cmd(CMD_BUTTON, "hhhhhhs", x + w - mod_w, y + row_h * 3, mod_w, key_h, MOD_FONT, kbd->key_down == KEY_BS ? EVE_OPT_FLAT : 0, "del");
eve_cmd_dl(TAG(TAG_FN));
eve_cmd(CMD_BUTTON, "hhhhhhs", x, y + row_h * 4, mod_w, key_h, MOD_FONT, kbd->key_modifier & FLAG_FN ? EVE_OPT_FLAT : 0, "fn");
eve_cmd_dl(TAG(TAG_CTRL));
eve_cmd(CMD_BUTTON, "hhhhhhs", x + mod_w + KEY_SPACERX, y + row_h * 4, mod_w, key_h, MOD_FONT, kbd->key_modifier & FLAG_CTRL ? EVE_OPT_FLAT : 0, "ctrl");
eve_cmd_dl(TAG(' '));
eve_cmd(CMD_BUTTON, "hhhhhhs", x + 2 * (mod_w + KEY_SPACERX), y + row_h * 4, w - 3 * (mod_w + KEY_SPACERX), key_h, MOD_FONT, kbd->key_down == ' ' ? EVE_OPT_FLAT : 0, "");
eve_cmd_dl(TAG(KEY_RET));
eve_cmd(CMD_BUTTON, "hhhhhhs", x + w - mod_w, y + row_h * 4, mod_w, key_h, MOD_FONT, kbd->key_down == KEY_RET ? EVE_OPT_FLAT : 0, "ret");
eve_cmd_dl(RESTORE_CONTEXT());
} else {
eve_cmd(CMD_APPEND, "ww", kbd->mem_addr, kbd->mem_size);
}
return 0x7e;
}
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