On Thu, Mar 13, 2014 at 10:29:29PM +0100, Vincent van Ravesteijn wrote:
>
> I did some debugging. The problem lies in the use of
> QProcess::startDetached. If you call this function with a the "cmd"
> prefix, you will inevitably get a command window.
That's the only way to use batch files on Windows with QProcess.
> Omitting the "cmd" could be a solution. Does it have any use to add
> the latexEnvCmdPrefix to a viewer command ?
Yes, it has. Any spawned subprocess should receive a copy of the relevant
environment variables. This was initially done using Qt, but due to
https://bugreports.qt-project.org/browse/QTBUG-19885
we have to use this workaround.
As an example, I attach a wrapper I use to launch xdvi. It relies on
TEXINPUTS being correctly set.
--
Enrico
#!/bin/sh
#
# Visualizza un file dvi in portrait o landscape
file=""
args=""
for arg in "$@"; do
case $arg in
-*) args="$args $arg" ;;
*) if [ -f "$arg" -o -f "$arg.dvi" ]; then
dir=`dirname "$arg"`
file=`basename "$arg"`
cd "$dir"
if [ ! -f "$file" ]; then
file=$file.dvi
fi
args="$args \"$file\""
else
args="$args $arg"
fi ;;
esac
done
if test -f LYXINPUTPATH; then
# we were called from LyX, so the input path is in LYXINPUTPATH
PWD=`cat LYXINPUTPATH`
else
PWD="."
PWD=$PWD:$PWD/figs
fi
if test -z "$TEXINPUTS"; then
TEXINPUTS=$PWD:
else
case $TEXINPUTS in
:*) TEXINPUTS=:$PWD$TEXINPUTS ;;
*:) TEXINPUTS=$TEXINPUTS$PWD: ;;
esac
fi
export TEXINPUTS
paper=
if [ -f "$file" ]; then
# use landscape if horiz >= vert dimension in dvi file
line=`dvitype "$file" | grep maxv=`
maxv=`expr "$line" : 'maxv=\(.*\), maxh.*'`
maxh=`expr "$line" : '.*maxh=\(.*\), maxstack.*'`
if [ $maxh -ge $maxv ]; then
paper="-paper a4r"
else
paper="-geometry 638 -margins 1.5"
fi
fi
eval exec /usr/bin/xdvi $paper -gamma 2 -expert $args
