% Function for the Push Button "Play Movie"

% --- Executes on button press in pushbutton1.

function pushbutton1_Callback(hObject, eventdata, handles)

    % hObject    handle to pushbutton1 (see GCBO)

    % eventdata  reserved - to be defined in a future version of MATLAB

    % handles    structure with handles and user data (see GUIDATA)

    % handles.Bmode is false if the input data is Pulsed Doppler data

    if( handles.Bmode ~= true )

        plot(handles.time, handles.Velocity_Data, '-k', ...

                    'LineWidth', 1, ...

                    'Parent', handles.Diameter_Plot);

        % This script update the message bar

        script_to_display_message;                

    else

        % Update the Threshold based on the new end values of the slider, stops any

        % running timers, update box locations. clears the diameter plots

        script_update_Threshold_and_display;

        % Check this condition to see if any box were added for processing.

        % If not, request user to add some boxes to get results

        if(handles.number_Box == 0)

            handles.Message_Bar.String  = 'Please add a BOX';

            handles.Diameter_data       = [];

            return;

        else

            % Run this script to process the frames. In the process, we are mainly

            % running time intensive operations like bwareaopen. Instead of

            % running it multiple times, we run these commands only when the slider

            % is updated. 

            script_to_process_frames;

        end

    end

    % This script update the message bar

    script_to_display_message;

    %run this scrip to save the results

    script_to_save_results;

    % Update handles structure

    guidata(hObject, handles);

end