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#!/bin/bash
# Find currently used resolution
res=$( xrandr | awk '/\sconnected/{i=split(substr($0,0,index($0,"+")-1),a);if($0~/\sprimary\s/){if(p==""){p=a[i]}}else{if(d==""){d=a[i]}}}END{if(p==""){print d}else{print p}}' )
bgpath="/usr/share/mga/backgrounds"
if [ $(readlink "$bgpath/default.jpg") != "$bgpath/Mageia-Default-$res.jpg" ]; then
# Check if this is a supported resolution, if not, find the background with the same aspect ratio
if [ ! -e "$bgpath/Mageia-Default-$res.jpg" ]; then
width=$(echo $res | cut -f1 -d"x")
height=$(echo $res | cut -f2 -d"x")
# Bash only does integer arithmetic, we multiply everything by 1000 to workaround this
ratio=$((1000*$width/$height))
found=false
declare -A refRatios=( ["1250"]="1280x1024" ["1333"]="1600x1200" ["1600"]="1920x1200"
["1667"]="1280x768" ["1707"]="1024x600" ["1778"]="1920x1080" )
for key in "${!refRatios[@]}"; do
if [ $(($ratio % $key)) -lt 25 -o $(($key % $ratio)) -lt 25 ]; then
res=${refRatios[$key]}
ratio=$key
found=true
break
fi
done
if ! $found; then
echo "mga-bg-res: Your aspect ratio does not seem to be supported, keeping default background resolution."
exit 1
fi
fi
if [ $(readlink "$bgpath/default.jpg") != "$bgpath/Mageia-Default-$res.jpg" ]; then
echo "mga-bg-res: Changing the background symlink to point to Mageia-Default-$res.jpg (aspect ratio ${ratio:0:1}.${ratio:1:3})"
/usr/bin/mga-bg-res $res
else
echo "mga-bg-res: Nothing to do, the background symlink is already correct."
fi
else
echo "mga-bg-res: Nothing to do, the background symlink is already correct."
fi
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