Direct injection of LaTeXString type into a slide

[stefanbringuier]

At the moment, if you want to inject mathematical expressions or equations into a Slide one could do the following:

using PPTX, MathJaxRenderer

pres = Presentation(;title="An equation")
slide = Slide(;title="A slide with an equation")

schrodinger_eq = Math("i\\hbar\\frac{\\partial}{\\partial t}{\\vert\\Psi(t)\\rangle} = \\hat{H}\\vert\\Psi(t)\\rangle")
eq_pic_file = tempname()*".png"
MathJaxRenderer.write(eq_pic_file,schrodinger_eq,dpi_x=300,dpi_y=300,x_zoom=10,y_zoom=10)

push!(slide,Picture(eq_pic_file,top=75,left=100,size=150))
push!(pres,slide)
PPTX.write("an_equation.pptx",pres,overwrite=true,open_ppt=false)

This works well, however, to me it would feel more natural to use LaTeXStrings.jl so one doesn't need to escape all \ and $ symbols. Also seems more natural if one is creating notebooks making use ofLaTeXString and/or Latexify and the plan is to use parts of the notebook for creating slides with PPTX.jl. The question would be how to inject a LaTeXString data type into a Slide. Does it get rendered by adding dependencies to PPTX.jl like (MathTexEngine.jl)[https://github.com/Kolaru/MathTeXEngine.jl) along with some plotting package and then just add as Picture type ? This maybe heavy. If powerpoint supports MathML maybe one creates a PPTX.LaTeXEq data type that gets properly handled upon push!(slide,PPTX.LaTeXEq(L"\frac{1}{x}")?

[matthijscox-asml]

For plotting, we had the idea to use Requires.jl to not force the user to install Plots as a dependency. We could try something similar for LaTeXStrings.

But I personally don't have any experience yet with Requires.jl.