Cfrgtkky

my question is simple (or not) I want to set the size of the colorbox command or fcolorbox command for a single character. The problem is the next:

As seen in the image, the height and width are different for different characters, but what I want is that the size is the same for all characters. The package that I use is xcolorand the code I used to generate the box character is
noindentcolorbox{black!85}{textcolor{white}{i}}

My objective is a box with individually centred character. The background of the box in black color and text in white. Also would be nice if it is a enumitem and the items are in a black box

 colorbox{black!85}{makebox[2em]{struttextcolor{white}{a}}}

or any other width that you want.

Or as if indicated in comments you want vertical as well as horizontal centering

 colorbox{black!85}{makebox(12,12){textcolor{white}{a}}}

where the size of the box, 12, is given in picture environment units (pt by default)

With tikz:

documentclass{article}

usepackage{tikz}

newcommandcoloredtext[2]{tikz[baseline=(char.base)]node[minimum width=2em,text height=1.5ex, text depth=0.1ex,fill=black!85,text=white,#1](char){#2};}%

begin{document}

noindent

foreach x in {a,b,...,z}{%

   coloredtext{x},

   }



noindent

foreach x in {A,B,...,Z}{%

   coloredtext[minimum width=2.55em]{x}

   }%

end{document}

I would suggest using the eqparbox package, if you want to have equal and minimal widths of the boxes (two runs are required):

documentclass[11pt]{article}



usepackage[utf8]{inputenc}

usepackage[T1]{fontenc}

usepackage{fourier} 



usepackage{eqparbox} 

usepackage[x11names]{xcolor} 



begin{document}



colorbox{DeepPink4}{eqmakebox[L]{Largebfseriescolor{AntiqueWhite1}I}}



colorbox{DeepPink4}{eqmakebox[L]{Largebfseriescolor{AntiqueWhite1}W}}



end{document} 

If you want the coloured boxes to have the same heights, while keeping the natural width of the widest, you can adjust the height in two ways:

• Either insert a vphantom{highest entry} as an argument to eqmakebox. Of course, it's up to you to decide which will be the highest entry. One may turn it into an optional argument of a macro.


• Or insert an invisible rule that lets you predefine the height of the box.

I give an example of both, the second solution with predefined height equal to 1 cm. This can make possible fancy effects.

documentclass[11pt]{article}



usepackage[utf8]{inputenc}

usepackage[T1]{fontenc}

usepackage{fourier}



usepackage{eqparbox}

usepackage[x11names]{xcolor}



begin{document}



colorbox{DeepPink4}{eqmakebox[L]{Largebfseriescolor{AntiqueWhite1}I}}

enspace 

colorbox{DeepPink4}{eqmakebox[L]{Largebfseriescolor{AntiqueWhite1}W}}

enspace 

colorbox{DeepPink4}{eqmakebox[L]{vphantom{Largebfseries W}footnotesizebfseriescolor{AntiqueWhite1}W}}

enspace\



colorbox{AntiqueWhite1}{eqmakebox[L]{rule{0pt}{dimexpr 1cm-2fboxseprelax}Largebfseriescolor{DeepPink4}W}}

enspace

colorbox{AntiqueWhite1}{eqmakebox[L]{rule{0pt}{dimexpr 1cm-2fboxseprelax}footnotesizebfseriescolor{DeepPink4}i}}

enspace\



colorbox{AntiqueWhite1}{eqmakebox[L]{rule[-0.4cm]{0pt}{dimexpr 1cm-2fboxseprelax}Largebfseriescolor{DeepPink4}W}}

enspace

colorbox{AntiqueWhite1}{eqmakebox[L]{rule[-0.4cm]{0pt}{dimexpr 1cm-2fboxseprelax}footnotesizebfseriescolor{DeepPink4}i}}



end{document} 

The first optional argument is the textcolor and the second is the background color.

documentclass{article}

usepackage[x11names]{xcolor}

makeatletter

defCbox{@ifnextchar[Cbox@i{Cbox@i[white]}}

defCbox@i[#1]{@ifnextchar[{Cbox@ii[#1]}{Cbox@ii[#1][black]}}

defCbox@ii[#1][#2]#3{colorbox{#2}{makebox[1em]{struttextcolor{#1}{#3}}}}

makeatother

begin{document}



Cbox{I} Cbox[yellow]{g} Cbox[AntiqueWhite1][DeepPink4]{W}



end{document} 

Here a solution with the adjustbox package. You can create the centered box using the center=<width> key. Adding strut gives you the same height and depths independent of the character size. If you use htstrutbox+dpstrutbox as the width you will get a nice square.

documentclass{article}

usepackage{xcolor}

usepackage{adjustbox}



newcommandblackboxchar[1]{noindent

    adjustbox{center=htstrutbox+dpstrutbox,frame,bgcolor=black!85}{color{white}strut #1}}



begin{document}



begin{itemize}

item[blackboxchar{i}] text  text  text  text 



item[blackboxchar{a}] text  text  text  text 



item[blackboxchar{m}] text  text  text  text 

end{itemize}



end{document}