On 02/24/2018 02:40 PM, ll...@writersglen.com wrote:
[I screwed up and replied privately rather than to the list, so I'm repeating the reply here.]Hello,I've been struggling to format attractive code listings. The boxes in the attached mini-lyx document show my feeble attempts so far.Box 2 is close to what I want, but has numerous problems: 1. Rather than red and white, I'd want black and light gray 2. I'd like width to be full width of text area of my page 3. I'd to use \listno\ in header, but get this error message when I try: File ended while scanning use of \codelist. <*> listno.tex *** (job aborted, no legal \end found)4. If I try to add a second code listing I get error messages or a broken box depending upon how I try to terminate the first list specification5. I'd like to use a monospace font in the code area that has both normal and bold faceMost of all, I'd like to understand how to gain programming control over the appearance of my code list boxes. I've been studying the tcolorbox manual. But when I try to change parameters in the lyx preamble nothing seems to change. So I'm guessing there's a lyx issue I'm ignorant of.I'd much appreciate any and all tips to help solve these issues. Many thanks, Lloyd R. Prentice
Lloyd,There are a couple of problems with your MWE. One is that it won't compile due to a typo. In the TeX box after "More code", you have a left parenthesis where you need a left brace. The other is that you seem to be using a nonstandard document class. It's a good idea to keep MWEs as vanilla as possible.
To make the background for the text in your code box more gray, ratchet up the "5" in colback settings. Right now you have gray!5!white, which is a mix of 5% gray and 95% white. Try something like 25 rather than 5.
I believe the specification red!1175!black for the colframe parameter is illegal; the xcolor package wants numbers between 0 and 100. Since I'm not sure what you're going for here, I can't make a useful suggestion, other than to say the closer you get to 0 (100) the more red (black) you get in the mix.
If you want the box header to have a pure black background, add "colbacktitle=black" to the definition of the box.
To get full text width, you may need to use \newtcolorbox rather than \newtcbox (which does not seem to like the width option). That will mean using \begin{my box name} and \end{my box name} to create the box. The extra option you give in the definition of the color box is "width=\textwidth".
An easier approach, in my opinion, is to use the features of the LyX module to define a custom color box. I've attached a hacked copy of your file, changing the document type to plain old book, fiddling a bit with your preamble (while noting that the color box stuff in the preamble won't be needed at all if you use the module features), and demonstrating the custom color box feature from the module.
As for your other questions, it's dinner time here, so you're on your own. Hopefully someone else will pick up the thread.
Paul
listno.lyx
Description: application/lyx
