function [autoSwitch, userSpecifiedRenderer] = autoSwitchToPaintersForPrint(pj)

% This undocumented helper function is for internal use.

% AUTOSWITCHTOPAINTERSFORPRINT 

% Checks to see if we should use painters for output generation when

% producing vector output, based on heuristic implemented here

% Copyright 2014-2019 The MathWorks, Inc.

    autoSwitch = false;  

    % becomes false if we don't exit early. Early exit triggered by:

    %   not vector format

    %   renderer was manually set (mode is manual)

    %   renderer was specified in print command 

    %   renderer is already painters 

    userSpecifiedRenderer = true;  

    exportHndl = pj.Handles{1}; 

    isVectorFormat = length(pj.Driver) > 1 && ...  

                     (strncmp(pj.Driver(1:2), 'ps', 2) || ...  

                     any(strncmp(pj.Driver(1:3), {'eps', 'met', 'pdf', 'svg'}, 3))); 

    %  We won't "auto switch" if 

    %    ** not doing a vector format or

    %    ** renderer was specified in call to print, or 

    %    ** user set figure's renderer (renderermode is 'manual'),  or 

    %    ** renderer is already set to 'painters' 

    rendererProp = 'Renderer'; 

    if isa(exportHndl, 'matlab.graphics.primitive.Canvas') || ...  

            isa(exportHndl, 'matlab.graphics.primitive.canvas.JavaCanvas') || ... 

            isa(exportHndl, 'matlab.graphics.primitive.canvas.HTMLCanvas') 

        rendererProp = 'OpenGL';

    end 

    if ~isVectorFormat || pj.rendererOption || ... 

            strcmp(exportHndl.([rendererProp 'Mode']), 'manual') || ... 

            any(strcmp(exportHndl.(rendererProp), {'painters', 'off'}))

        return; 

    end

    % not returning early, checking contents w/in heuristic

    userSpecifiedRenderer = false; 

    % use the heuristic to decide whether or not switch

    % auto switch only if the scene isn't too complex 

    % when exporting, and not printing, we might have a specified set of

    % objects to export (print does entire figure). We only want to

    % consider that specified set when deciding whether to autoswitch 

    if (isfield(pj, 'temp') || isprop(pj, 'temp')) && isfield(pj.temp, 'exportInclude') && ...

            ~isempty(pj.temp.exportInclude)

        exportHndl = setdiff(pj.temp.exportInclude, exportHndl); 

    end

    % first check if any axes use depth sorting (only care if the axes

    % contents are visible since that would impact rendering)

    ax = findobjinternal(exportHndl, 'type', 'axes', 'SortMethod', 'depth', 'ContentsVisible', 'on');

    if ~isempty(ax)

        % depth sorting in use, don't autoswitch g1736840

        autoSwitch = false;

    else

        %  none of the axes were using depth sorting, but still need to

        %  check for more complex figures. For example, figs w/large surfaces 

        %  or large number of markers could result in time-consuming 

        %  output generation and large output files. 

        checker = matlab.graphics.internal.PrintPaintersChecker.getInstance();

        autoSwitch = ~checker.exceedsVertexLimits(exportHndl); 

    end

    % if we still think we can/should auto switch, check to see if the 

    % figure uses transparency and, if so, whether the output format

    % supports it (right now, PS/EPS don't support transparency 

    if autoSwitch && ~isempty(strfind(pj.Driver, 'ps'))

        % if transparency, don't autoswitch

        autoSwitch = ~hasTransparency(exportHndl, checker.DebugMode); 

    end

    % if we still think we can/should auto switch, check to see if there is

    % any lighting involved, and don't autoSwitch if there is

    if autoSwitch

        autoSwitch = ~checker.exceedsLightingLimits(exportHndl);

    end

    % if we still think we can/should auto switch, check to see if there is

    % any surface with texturemap facecolor exist, and don't autoSwitch if

    % it is going to be large output size (except PDF format) [g1651960]

    if autoSwitch && ~contains(pj.Driver, 'pdf')

        autoSwitch = ~checker.exceedsTextureLimits(exportHndl);

    end

    % if we still think we can/should auto switch, check to see if there is

    % trianglestrip/quadrilateral with texturemap/interp facecolor 

    % exceeds beyond certain limit[g1769901].

    if autoSwitch

        autoSwitch = ~checker.exceedsIntepolatedLimits(exportHndl);

    end

end