Method MovePos

src/textbuf.cpp:363–395

* Handle text navigation with arrow keys left/right. * This defines where the caret will blink and the next character interaction will occur * @param keycode Direction in which navigation occurs (WKC_CTRL |) WKC_LEFT, (WKC_CTRL |) WKC_RIGHT, WKC_END, WKC_HOME * @return Return true on successful change of Textbuf, or false otherwise */

 * @return Return true on successful change of Textbuf, or false otherwise
 */
bool Textbuf::MovePos(uint16_t keycode)
{
	switch (keycode) {
		case WKC_LEFT:
		case WKC_CTRL | WKC_LEFT: {
			auto move_type = (keycode & WKC_CTRL) != 0 ? StringIterator::ITER_WORD : StringIterator::ITER_CHARACTER;
			return (_current_text_dir == TD_LTR) ? this->MovePrev(move_type) : this->MoveNext(move_type);
		}

		case WKC_RIGHT:
		case WKC_CTRL | WKC_RIGHT: {
			auto move_type = (keycode & WKC_CTRL) != 0 ? StringIterator::ITER_WORD : StringIterator::ITER_CHARACTER;
			return (_current_text_dir == TD_LTR) ? this->MoveNext(move_type) : this->MovePrev(move_type);
		}

		case WKC_HOME:
			this->caretpos = 0;
			this->char_iter->SetCurPosition(this->caretpos);
			this->UpdateCaretPosition();
			return true;

		case WKC_END:
			this->caretpos = static_cast<uint16_t>(this->buf.size());
			this->char_iter->SetCurPosition(this->caretpos);
			this->UpdateCaretPosition();
			return true;

		default:
			break;
	}

	return false;
}

/**
 * Initialize the textbuffer by supplying it the buffer to write into