I'm not sure this ticket deserve the status of a feature request, as it is basically an idea to mitigate the issue discussed in this ask.libreoffice question.
Since in LO Impress it is not possible to add TexMaths equations inside a text box, one has to write an entire paragraph using TexMaths and include it as an image (and tolerate the different text fonts...)
(There is, of course, the other approach of leaving out some space in the text box and adding equations as images grouped together with the text box, but I find this other approach way less user friendly.)
To regulate the width of the text, one can use the geometry package in the LaTeX preamble and set the margins, but I found it more handy to wrap my text inside a minipage. Since I'm doing this repeateadly, I was wondering if this could be included as an option in the TexMaths editor window, with the minipage width as an input field as it is already done with the font size.
Ticket moved from /p/texmaths/bugs/127/
Thank you for the minipage suggestion!
It would be useful to control the width in the GUI. Perhaps display the default width of the texmaths libreoffice object and provide an option to override the width with a user defined value.
Now (since TexMaths 0.51), it's possible to write (simple) equations within text boxes. This can handle inline equations very conveniently.
For complex display equations, you can insert them outside the text boxes, as the usual way.