Method insert

src/RichText/TextBox.cpp:1086–1137

}

TextPosition TextBox::insert(TextPosition pos, std::string_view textToInsert, const std::optional<TextStyleModifier::ModifierMap>& inputModMap) {
    TextPosition oldPos = pos = move(Movement::NOWHERE, pos);

    for(char c : textToInsert) {
        if(c == '\r') {}
        else if(c == '\n') {
            if(newlinesAllowed) {
                for(auto& [p, tStylesInPos] : tStyleMods) {
                    if(p.fParagraphIndex > pos.fParagraphIndex)
                        p.fParagraphIndex++;
                    else if(p.fParagraphIndex == pos.fParagraphIndex && p.fTextByteIndex >= pos.fTextByteIndex && !(p.fTextByteIndex == pos.fTextByteIndex && p.fTextByteIndex == 0)) {
                        p.fTextByteIndex = p.fTextByteIndex - pos.fTextByteIndex;
                        p.fParagraphIndex++;
                    }
                }
                paragraphs.insert(paragraphs.begin() + pos.fParagraphIndex + 1, ParagraphData{});
                paragraphs[pos.fParagraphIndex + 1].pStyleData = paragraphs[pos.fParagraphIndex].pStyleData;
                paragraphs[pos.fParagraphIndex + 1].text = paragraphs[pos.fParagraphIndex].text.substr(pos.fTextByteIndex, paragraphs[pos.fParagraphIndex].text.size() - pos.fTextByteIndex);
                paragraphs[pos.fParagraphIndex].text.erase(pos.fTextByteIndex, paragraphs[pos.fParagraphIndex].text.size() - pos.fTextByteIndex);
                pos.fParagraphIndex++;
                pos.fTextByteIndex = 0;
            }
        }
        else if(c == '\t' && !newlinesAllowed) {
            for(auto& [p, tStylesInPos] : tStyleMods) {
                if(p.fParagraphIndex == pos.fParagraphIndex && p.fTextByteIndex >= pos.fTextByteIndex && !(p.fTextByteIndex == pos.fTextByteIndex && p.fTextByteIndex == 0))
                    p.fTextByteIndex += tabWidth;
            }
            paragraphs[pos.fParagraphIndex].text.insert(pos.fTextByteIndex, std::string(tabWidth, ' '));
            pos.fTextByteIndex += tabWidth;
        }
        else {
            for(auto& [p, tStylesInPos] : tStyleMods) {
                if(p.fParagraphIndex == pos.fParagraphIndex && p.fTextByteIndex >= pos.fTextByteIndex && !(p.fTextByteIndex == pos.fTextByteIndex && p.fTextByteIndex == 0))
                    p.fTextByteIndex++;
            }
            paragraphs[pos.fParagraphIndex].text.insert(paragraphs[pos.fParagraphIndex].text.begin() + pos.fTextByteIndex, c);
            pos.fTextByteIndex++;
        }
    }

    if(!textToInsert.empty()) {
        remove_duplicate_text_style_mods();
        if(inputModMap.has_value()) {
            for(const auto& [modType, modifier] : inputModMap.value())
                set_text_style_modifier_between(oldPos, pos, modifier);
        }
        needsRebuild = true;
    }

    return pos;
}

TextPosition TextBox::remove(TextPosition p1, TextPosition p2) {
    auto [start, end] = get_start_end_text_pos(p1, p2);