paragraphs
I want to create a few new paragraph styles for a user manual I am writing. The trick part is I want to add an Icon to the beging of the line.
I want to create three styles;
each is differnt in terms of color and have different icons. I want it to be more like a textbox with a boarder around it. keeping in mind that each instance will be no more than 2 lines at very most. e.g.
Warning; Risk of Electric Shock
in the file stdlayouts.inc you can copy the definition for quotation
to a part called "myquotation". In the file stdlists you can see at the end how additional preamble commands can be made which are hided from the normal user. After changing your layout file run reconfigure and restart lyx, there should now be a "myquoation" in all styles which support this kind of environment.
Here is an example for an LyX environment MyQuotation
Style MyQuotation
Category MainText
Margin Static
LatexType Environment
LatexName myquotation
NextNoIndent 1
LeftMargin MMM
RightMargin MMM
ParIndent MM
ParSkip 0
ItemSep 0
TopSep 0.5
BottomSep 0.5
ParSep 0
Align Block
AlignPossible Block, Left, Right, Center
Preamble
\usepackage{mdframed}
\usepackage{xcolor}
\newenvironment{myquotation}
{\begin{mdframed}[linecolor=red]\quotation}
{\endquotation\end{mdframed}}
EndPreamble
End
insert it into the file stdlayouts.inc and save the file in your local .lyx/layouts/ directory (don't know how it shopuld be on windows). Then run reconfigure and you shouöld see the paagraph layout MyQuotation which then gives a framed output.
The blank-line-gives-new-paragraph mechanism works on a lower level than LaTeX; it is TeX. You may want to read sections 2.5 and 2.9 of TeX by Topic. There are basically two possibilities, both of which should certainly be confined to a group.
\par, for example \let\par\relax\endlinechar to be 32, so that the actual (platform-dependent) end-of-line-marker(s) are replaced by a space token. You can also set it to some value outside the range 0-255, meaning that nothing will be inserted in the input stream.In both cases, note that if a line ends with a control sequence, one has to take care of spaces in the output. You can also mess around with catcodes, but I'm not sure what would be gained by this compared to 1. and 2 (except perhaps that the space-issue would be easier to solve).
This said, to answer your final question: No, I certainly don't think it's a good idea. In code that no one but you will see you can of course do anything, but as soon as you need to collaborate on some projects, tricks such as these can cause quite a lot of confusion. The standard way of increasing readability while preventing insertion of \par tokens is the one you describe. The % doesn't actually have to appear as the very first character; spaces before it are automatically ignored. This can be useful if you use indentation inside environments:
\begin{align}
something &= some complicated expression \\
%
other &= more complicated stuff
\end{align}
Best Answer
You can define new icons for bclogo just following the pattern shown on page 18 of the documentation:
assuming that your logo is in
warning.png;\logowidthis a length parameter that defaults to 17pt and can be changed by\setlength{\logowidth}{<length>}.You can then use