Method InsertChar

src/textbuf.cpp:128–144

* Insert a character to a textbuffer. If maxwidth of the Textbuf is zero, * we don't care about the visual-length but only about the physical * length of the string * @param key Character to be inserted * @return Return true on successful change of Textbuf, or false otherwise */

 * @return Return true on successful change of Textbuf, or false otherwise
 */
bool Textbuf::InsertChar(char32_t key)
{
	auto [src, len] = EncodeUtf8(key);
	if (this->buf.size() + len < this->max_bytes && this->chars + 1 <= this->max_chars) {
		/* Make space in the string, then overwrite it with the Utf8 encoded character. */
		this->buf.insert(this->caretpos, src, len);
		this->chars++;
		this->caretpos += len;

		this->UpdateStringIter();
		this->UpdateWidth();
		this->UpdateCaretPosition();
		this->UpdateMarkedText();
		return true;
	}
	return false;
}

/**
 * Insert a string into the text buffer. If maxwidth of the Textbuf is zero,