diff options
Diffstat (limited to 'cpp/termbox/input.inl')
| -rw-r--r-- | cpp/termbox/input.inl | 214 |
1 files changed, 107 insertions, 107 deletions
diff --git a/cpp/termbox/input.inl b/cpp/termbox/input.inl index 8c555114..eee888f2 100644 --- a/cpp/termbox/input.inl +++ b/cpp/termbox/input.inl @@ -3,130 +3,130 @@ // s2 should be null-terminated static bool starts_with(const char *s1, int len, const char *s2) { - int n = 0; - while (*s2 && n < len) { - if (*s1++ != *s2++) - return false; - n++; - } - return *s2 == 0; + int n = 0; + while (*s2 && n < len) { + if (*s1++ != *s2++) + return false; + n++; + } + return *s2 == 0; } // convert escape sequence to event, and return consumed bytes on success (failure == 0) static int parse_escape_seq(struct tb_event *event, const char *buf, int len) { - if (len >= 6 && starts_with(buf, len, "\033[M")) { + if (len >= 6 && starts_with(buf, len, "\033[M")) { - switch (buf[3] & 3) { - case 0: - if (buf[3] == 0x60) - event->key = TB_KEY_MOUSE_WHEEL_UP; - else - event->key = TB_KEY_MOUSE_LEFT; - break; - case 1: - if (buf[3] == 0x61) - event->key = TB_KEY_MOUSE_WHEEL_DOWN; - else - event->key = TB_KEY_MOUSE_MIDDLE; - break; - case 2: - event->key = TB_KEY_MOUSE_RIGHT; - break; - case 3: - event->key = TB_KEY_MOUSE_RELEASE; - break; - default: - return -6; - } - event->type = TB_EVENT_MOUSE; // TB_EVENT_KEY by default + switch (buf[3] & 3) { + case 0: + if (buf[3] == 0x60) + event->key = TB_KEY_MOUSE_WHEEL_UP; + else + event->key = TB_KEY_MOUSE_LEFT; + break; + case 1: + if (buf[3] == 0x61) + event->key = TB_KEY_MOUSE_WHEEL_DOWN; + else + event->key = TB_KEY_MOUSE_MIDDLE; + break; + case 2: + event->key = TB_KEY_MOUSE_RIGHT; + break; + case 3: + event->key = TB_KEY_MOUSE_RELEASE; + break; + default: + return -6; + } + event->type = TB_EVENT_MOUSE; // TB_EVENT_KEY by default - // the coord is 1,1 for upper left - event->x = buf[4] - 1 - 32; - event->y = buf[5] - 1 - 32; + // the coord is 1,1 for upper left + event->x = buf[4] - 1 - 32; + event->y = buf[5] - 1 - 32; - return 6; - } + return 6; + } - // it's pretty simple here, find 'starts_with' match and return - // success, else return failure - int i; - for (i = 0; keys[i]; i++) { - if (starts_with(buf, len, keys[i])) { - event->ch = 0; - event->key = 0xFFFF-i; - return strlen(keys[i]); - } - } - return 0; + // it's pretty simple here, find 'starts_with' match and return + // success, else return failure + int i; + for (i = 0; keys[i]; i++) { + if (starts_with(buf, len, keys[i])) { + event->ch = 0; + event->key = 0xFFFF-i; + return strlen(keys[i]); + } + } + return 0; } static bool extract_event(struct tb_event *event, struct bytebuffer *inbuf, int inputmode) { - const char *buf = inbuf->buf; - const int len = inbuf->len; - if (len == 0) - return false; + const char *buf = inbuf->buf; + const int len = inbuf->len; + if (len == 0) + return false; - if (buf[0] == '\033') { - int n = parse_escape_seq(event, buf, len); - if (n != 0) { - bool success = true; - if (n < 0) { - success = false; - n = -n; - } - bytebuffer_truncate(inbuf, n); - return success; - } else { - // it's not escape sequence, then it's ALT or ESC, - // check inputmode - if (inputmode&TB_INPUT_ESC) { - // if we're in escape mode, fill ESC event, pop - // buffer, return success - event->ch = 0; - event->key = TB_KEY_ESC; - event->mod = 0; - bytebuffer_truncate(inbuf, 1); - return true; - } - if (inputmode&TB_INPUT_ALT) { - // if we're in alt mode, set ALT modifier to - // event and redo parsing - event->mod = TB_MOD_ALT; - bytebuffer_truncate(inbuf, 1); - return extract_event(event, inbuf, inputmode); - } - assert(!"never got here"); - } - } + if (buf[0] == '\033') { + int n = parse_escape_seq(event, buf, len); + if (n != 0) { + bool success = true; + if (n < 0) { + success = false; + n = -n; + } + bytebuffer_truncate(inbuf, n); + return success; + } else { + // it's not escape sequence, then it's ALT or ESC, + // check inputmode + if (inputmode&TB_INPUT_ESC) { + // if we're in escape mode, fill ESC event, pop + // buffer, return success + event->ch = 0; + event->key = TB_KEY_ESC; + event->mod = 0; + bytebuffer_truncate(inbuf, 1); + return true; + } + if (inputmode&TB_INPUT_ALT) { + // if we're in alt mode, set ALT modifier to + // event and redo parsing + event->mod = TB_MOD_ALT; + bytebuffer_truncate(inbuf, 1); + return extract_event(event, inbuf, inputmode); + } + assert(!"never got here"); + } + } - // if we're here, this is not an escape sequence and not an alt sequence - // so, it's a FUNCTIONAL KEY or a UNICODE character + // if we're here, this is not an escape sequence and not an alt sequence + // so, it's a FUNCTIONAL KEY or a UNICODE character - // first of all check if it's a functional key - if ((unsigned char)buf[0] <= TB_KEY_SPACE || - (unsigned char)buf[0] == TB_KEY_BACKSPACE2) - { - // fill event, pop buffer, return success */ - event->ch = 0; - event->key = (uint16_t)buf[0]; - bytebuffer_truncate(inbuf, 1); - return true; - } + // first of all check if it's a functional key + if ((unsigned char)buf[0] <= TB_KEY_SPACE || + (unsigned char)buf[0] == TB_KEY_BACKSPACE2) + { + // fill event, pop buffer, return success */ + event->ch = 0; + event->key = (uint16_t)buf[0]; + bytebuffer_truncate(inbuf, 1); + return true; + } - // feh... we got utf8 here + // feh... we got utf8 here - // check if there is all bytes - if (len >= tb_utf8_char_length(buf[0])) { - /* everything ok, fill event, pop buffer, return success */ - tb_utf8_char_to_unicode(&event->ch, buf); - event->key = 0; - bytebuffer_truncate(inbuf, tb_utf8_char_length(buf[0])); - return true; - } + // check if there is all bytes + if (len >= tb_utf8_char_length(buf[0])) { + /* everything ok, fill event, pop buffer, return success */ + tb_utf8_char_to_unicode(&event->ch, buf); + event->key = 0; + bytebuffer_truncate(inbuf, tb_utf8_char_length(buf[0])); + return true; + } - // event isn't recognized, perhaps there is not enough bytes in utf8 - // sequence - return false; + // event isn't recognized, perhaps there is not enough bytes in utf8 + // sequence + return false; } |