Destruktor i Try .. Catch

class Dialog_Brightness_Contrast
    : public Dialog
{
public:
    BrightnessContrastState _state;
   
    std::shared_ptr < SliderWithButtons > _brightness_slider;
    std::shared_ptr < SliderWithButtons > _contrast_slider;
   
    std::shared_ptr < ColoredButtonWithText > _reset;
    std::shared_ptr < ColoredButtonWithText > _confirm;
   
    std::vector < std::shared_ptr < Layer >> _original_layers;
    std::vector < std::shared_ptr < Layer >> _edited_layers;
   
    Dialog_Brightness_Contrast( std::vector < std::shared_ptr < Layer >> layers );
    ~Dialog_Brightness_Contrast();
   
    void saveOriginalLayers( std::vector < std::shared_ptr < Layer >> layers );
    void setPosition( sf::Vector2i position );
    void setTheFilter();
   
    void cursorHover();
    void handleEvent( const sf::Event & event );
    void update();
    void draw();
   
};

Dialog_Brightness_Contrast::~Dialog_Brightness_Contrast() {
   
    try {
        if( Dialog_Brightness_Contrast::_state == BrightnessContrastState::Idle ) {
            // is Reset - backup layers
            _brightness_slider->setValue( 0 );
            _contrast_slider->setValue( 0 );
           
            getCurrentAnimation()->getCurrentFrame()->_layers.clear();
            getCurrentAnimation()->getCurrentFrame()->_layers = _edited_layers;
            layers_panel->loadLayersFromCurrentFrame();
        }
        else {
            // is Edited - add effect to selection
            if( selection->_state == SelectionState::Selected ) {
                sf::Image original_image = getCurrentAnimation()->getCurrentLayer()->_image;
                pasteImageWithMask( getCurrentAnimation()->getCurrentLayer()->_image, * selection->_resizedImage, selection->_resizedRect.position.x, selection->_resizedRect.position.y, * selection->_resizedMaskImage,( toolbar->_option_transparency->_checkbox->_value == 0 ) ? sf::Color::Transparent
                    : toolbar->_second_color->_color );
                history->saveStep();
                canvas->_isEdited = true;
                selection->normalize( selection->_resizedRect );
                getCurrentAnimation()->getCurrentLayer()->_image = original_image;
            }
            else {
                history->saveStep();
            }
        }
    }
    catch( const std::exception & e ) {
        std::cerr << "Exception in Dialog_Brightness_Contrast destructor: " << e.what() << std::endl;
    }
    catch( ... ) {
        std::cerr << "Unknown exception in Dialog_Brightness_Contrast destructor" << std::endl;
    }
}

if( Dialog_Brightness_Contrast::_state == BrightnessContrastState::Idle ) {
    // is Reset - backup layers
    _brightness_slider->setValue( 0 );
    _contrast_slider->setValue( 0 );
   
    getCurrentAnimation()->getCurrentFrame()->_layers.clear();
    getCurrentAnimation()->getCurrentFrame()->_layers = _edited_layers; // to-do orginal
    layers_panel->loadLayersFromCurrentFrame();
}