Cfrgtkky

I would like to create a figure with a left-aligned subfloat caption as the following:

documentclass{llncs}



usepackage{todonotes}

usepackage{floatflt}

usepackage{graphicx}

usepackage{subfig}



begin{document}

begin{figure}[t!]

    centering

    subfloat[Resource Owner Password hspace{textwidth}Credential Grant]{

        missingfigure[figwidth=0.5textwidth]{Testing a long text string}

        label{fig:pwd_grant}

    }

    subfloat[Client Credential Grant]{

        missingfigure[figwidth=0.5textwidth]{Testing a long text string}

        label{fig:client_grant}

    }

    caption{grants}

    label{fig:auth_impl_grant}

end{figure}

end{document}

(if you compile now the example you will see the actual problem with the caption and why I would wish to have it left aligned)

using the subfig package with documenttype lncs
currently the caption is in block mode - means tex spreads it over the complete available distance. This looks pretty crappy to me...

Thank you very much in advance.

@Peiffap
Thanks to your suggestion I was able to create an example that worked for me with left aligned caption, but also in height aligned caption, it looks as follows:

documentclass{llncs}

usepackage{todonotes}

usepackage{floatflt}

usepackage{graphicx}

usepackage{subcaption}

captionsetup{compatibility=false}



begin{document}

begin{figure}[t!]

    makebox[linewidth][c]{

        subcaptionbox{Resource Owner Password\ Credential Grant}[.47linewidth]{

            missingfigure[figwidth=textwidth]{Testing a text string}

            label{fig:auth_grant}

        }

        hspace*{2cm}

        subcaptionbox{Client Credential Grant}[.47linewidth]{

            centering

            missingfigure[figwidth=textwidth]{Testing a text string}

            label{fig:impl_grant}

        }

    }

    caption{Caption}

    label{fig:auth_impl_grant}

end{figure}





end{document}

for some odd reason, when I put this into overleaf with the missing figure placeholder it looks odd, still locally it works totally fine.

Using the subcaption package, I could make the following.

This is the code I used to generate that (admittedly, I didn't have the llncs package installed, so I changed that out for article).

documentclass{article}

usepackage{todonotes}

usepackage{floatflt}

usepackage{graphicx}

usepackage{subcaption}



begin{document}

begin{figure}[t!]

    centering

    begin{subfigure}[t]{0.47textwidth}

        centering

        missingfigure[figwidth=textwidth]{Testing a long text string}

        caption{Resource Owner Password \ Credential Grant}

        label{fig:pwd_grant}

    end{subfigure}hfill

    begin{subfigure}[t]{0.47textwidth}

        centering

        missingfigure[figwidth=textwidth]{Testing a long text string}

        caption{Client Credential Grant}

        label{fig:client_grant}

    end{subfigure}

    caption{grants}

    label{fig:auth_impl_grant}

end{figure}



end{document}

Do note however that subcaption and subfig are not compatible! For what it's worth though, subfig was getting pretty obsolete last time I checked, while subcaption fixes some of its flaws (compatibility with hyperref being a big one).

Edit

After some more work, OP went with the following code.

documentclass{llncs}

usepackage{todonotes}

usepackage{floatflt}

usepackage{graphicx}

usepackage{subcaption}

captionsetup{compatibility=false}



begin{document}

begin{figure}[t!]

    makebox[linewidth][c]{

        subcaptionbox{Resource Owner Password\ Credential Grant}[.47linewidth]{

            missingfigure[figwidth=textwidth]{Testing a text string}

            label{fig:auth_grant}

        }

        hspace*{2cm}

        subcaptionbox{Client Credential Grant}[.47linewidth]{

            centering

            missingfigure[figwidth=textwidth]{Testing a text string}

            label{fig:impl_grant}

        }

    }

    caption{Caption}

    label{fig:auth_impl_grant}

end{figure}



end{document}