Method query_string

src/string_editor_window.cpp:543–749

}

std::pair<bool, std::string> string_editor_window::query_string()
{
    if( !ctxt ) {
        create_context();
    }

    utf8_wrapper edit( ctxt->get_edittext() );
    if( _position == -1 ) {
        _position = _utext.length();
    }

    // fold the text
    bool refold = true;
    // calculate the cursor position
    bool reposition = true;

    ui_adaptor ui;
    ui.on_screen_resize( [&]( ui_adaptor & ui ) {
        _win = _create_window();
        _max.x = getmaxx( _win );
        _max.y = getmaxy( _win );
        _cursor_desired_x = -1;
        refold = true;
        ui.position_from_window( _win );
    } );
    ui.mark_resize();
    ui.on_redraw( [&]( ui_adaptor & ui ) {
        if( refold ) {
            utf8_wrapper text = _utext;
            if( !edit.empty() ) {
                text.insert( _position, edit );
            }
            if( _show_line_numbers ) {
                _line_number_width = get_line_number_width( text.str(), _line_number_min_width );
            } else {
                _line_number_width = 0;
            }
            const auto gutter_width = _show_line_numbers ? _line_number_width + 1 : 0;
            const auto fold_width = std::max( 1, _max.x - 2 - gutter_width );
            _folded = std::make_unique<folded_text>( text.str(), fold_width );
            refold = false;
            reposition = true;
        }
        if( reposition ) {
            _cursor_display = get_line_and_position( _position, _cursor_desired_x == 0 );
            if( _cursor_desired_x < 0 ) {
                _cursor_desired_x = _cursor_display.x;
            }
            if( edit.empty() ) {
                _ime_preview_range.reset();
            } else {
                _ime_preview_range = std::make_unique<ime_preview_range>( ime_preview_range{
                    _position, _position + static_cast<int>( edit.size() ),
                    _cursor_display, get_line_and_position( _position + edit.size() - 1, true )
                } );
            }
            reposition = false;
        }