findFigure.m
684dbb31e286TekRSA-Freq-vs-Time

findFigure.m
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			% Find matlab.ui.Figure handle in structure or class instance

			function Fig = findFigure(Obj)

			% First check if the object is empty
			if isempty(Obj)
			Fig = [];
			return
			end

			% Check if the object itself is a figure
			if isa(Obj, 'matlab.ui.Figure')
			Fig = Obj;
			return
			end

			% If the object contains 'Gui' property, search over it instead of the
			% object itself.
			gui_prop_name_list = {'gui', 'Gui', 'GUI'};
			ind = ismember(gui_prop_name_list, properties(Obj));
			if nnz(ind) == 1
			tag = gui_prop_name_list{ind};
			Fig = findFigure(Obj.(tag));
			return
			end

			% Find figure among the object properties
			if isstruct(Obj)
			prop_names = fieldnames(Obj);
			else
			if isvalid(Obj)
			prop_names = properties(Obj);
			else
			Fig = [];
			return
			end
			end

			% Try to find the figure among the properties
			figure_ind = cellfun(@(x) isa(Obj.(x),'matlab.ui.Figure'), prop_names);
			if any(figure_ind)

			% Returns the 1-st figure among those found
			fig_names = prop_names(figure_ind);
			Fig = Obj.(fig_names{1});
			else
			Fig = [];
			end
			end