#!/bin/sh
# Copyright 2001 BSDi, Inc, Concord, CA.  Written by volkerdi@slackware.com.
# Copyright 2004 Slackware Linux, Inc., Concord, CA.
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Modified by rs Lange of Vector Linux. Formally called xorgsetup
vdir=`dirname $0`
. $vdir/vasm-functions
check_root

if [ $DISPLAY ]; then
  DIALOG=Xdialog
else
  DIALOG=dialog
fi

# If we aren't root, bail:
if [ "$UID" = "0" ]; then
  TMP=/var/log/setup/tmp
else
  clear
  echo "Only root can configure X......bailing"
  sleep 8
  exit
fi

# Now, this wouldn't make much sense either:
if [ ! -x /usr/X11R6/bin/Xorg ]; then
  echo "No X found so bailing............"
  sleep 8
  exit
fi

$DIALOG --title "CONFIGURE X SERVER" --yesno \
" X will attempt to probe for your video hardware and mouse, and \n
write an initial configuration file to /etc/X11/xorg.conf.\n
  Would you like to do this now?" 10 66
if [ ! $? = 0 ]; then
  exit
fi

if [ ! -d $TMP ]; then
 mkdir -p $TMP
 chmod 700 $TMP
fi

# OK, we'll warn the user if there's already an existing xorg.conf:
CONFIG_EXISTS=false
for xf86config in /etc/X11/xorg.conf /etc/xorg.conf /usr/X11R6/lib/X11/xorg.conf $HOME/xorg.conf ; do
  if [ -r $xf86config ]; then
    CONFIG_EXISTS=$xf86config
  fi  
done
if [ ! "$CONFIG_EXISTS" = "false" ]; then
  $DIALOG --title "FOUND EXISTING xorg.conf in `dirname $CONFIG_EXISTS`" \
  --msgbox "A previous X Window System configuration file has been found. \n
  You can now reconfigure X, replacing the file with a new version (and \n
  keeping a backup of the old file), or you can abort leaving the existing \n
  config file in place.  Hit ENTER to rename the xorg.conf file to \n
  xorg.conf.backup and create a new one, or ESC to abort." 10 80
  if [ ! $? = 0 ]; then
    exit
  fi
fi

# Have the X server create a default config file:
/usr/X11R6/bin/X -configure :2 2> /dev/null
if [ ! $? = 0 ]; then
  # failure, bail.
  exit
fi

# Move any existing config file(s) aside:
for xf86config in /etc/X11/xorg.conf /etc/xorg.conf /usr/X11R6/lib/X11/xorg.conf $HOME/xorg.conf ; do
  if [ -r $xf86config ]; then
    mv $xf86config ${xf86config}.backup
  fi  
done
##We may need horiz and vert refresh rates later so lets get them now
ddcxinfo -hsync > $TMP/hsync
ddcxinfo -vsync > $TMP/vsync
vert=`cat $TMP/vsync`
horiz=`cat $TMP/hsync`
if [ $vert = "0-0" ]; then
  vert="40-90"
fi
if [ $horiz = "0-0" ]; then
  horiz="31.5-64"
fi

# To force the nvidia module for a desired reolution
/bin/grep ^Driver /etc/X11/xorg.conf | grep "nv"
if [ $? == 0 ]; then
 if [ -e /lib/modules/`uname -r`/kernel/drivers/video/nvidia.ko ]; then
   echo module exists
 if [ -e /lib/modules/`uname -r`/kernel/drivers/video/nvidia.ko ]; then
  NV=`/bin/grep ^Driver /etc/X11/xorg.conf | grep "nv"|cut -d \" -f 2`
    if [ "$NV" == "nv" ];then
      sed s'/nv/nvidia/g' /etc/X11/xorg.conf >/etc/X11/xorg.conf.new
      mv /etc/X11/xorg.conf.new /etc/X11/xorg.conf
    fi
fi

# OK, so now that we have a default file in $HOME/xorg.conf.new
# we can set up a default color depth:
clear
$DIALOG --title "SELECT DEFAULT COLOR DEPTH" \
  --menu "Now you may select a default color depth for the X server:" 13 70 6 \
  "24" "24 bit True Color" \
  "16" "16 bit Pseudo Color" \
  "8" "8 bit 256 Color" \
  "4" "4 bit 16 Color" \
  "1" "1 bit Mono B/W" \
  "none" "Go with driver default (usually 8-bit)" 2> $TMP/colordepth
if [ ! $? = 0 ]; then
  rm -f $TMP/colordepth
  exit 1
fi
depth=`cat $TMP/colordepth`
sleep 2
##############################################################
##now lets get a default screen resolution
clear
$DIALOG --title "SELECT DEFAULT MONITOR RESOLUTION" \
 --menu "Please select your default screen resolution from the menu below. \n
The resolution selected should be the best your monitor will handle. \n
For most modern monitors a selection of 1024X768 is a good choice, older monitors \n
may only be able to do 800X600. Please select a resolution now." 16 70 6 \
"640x480" "The most basic vga monitor" \
"800x600" "Any SVGA monitor should be able to do this"  \
"1024x768" "If you have a recent 15 or 17 inch monitor OK" \
"1280x1024" "Very new monitors or lcd screens" \
"1600x1200" "You know if you have this one...wow!" \
"none" "Choose this if you have no idea X will try to figure it out" 2> $TMP/resolution
if [ ! $? = 0 ]; then
rm -f $TMP/resolution
exit 1
fi
res=`cat $TMP/resolution`

##set resolution modes
if [ "$res" = "640x480" ]; then
  finalres="Modes \"640x480\" \"800x600\""
fi
if [ "$res" = "800x600" ]; then
  finalres="Modes \"800x600\" \"640x480\""
fi
if [ "$res" = "1024x768" ]; then
  finalres="Modes \"1024x768\" \"800x600\" \"640x480\""
fi
if [ "$res" = "1280x1024" ]; then
  finalres="Modes \"1280x1024\" \"1024x768\" \"800x600\" \"640x480\""
fi
if [ "$res" = "1600x1200" ]; then
  finalres="Modes \"1600x1024\" \"1280x1024\" \"1024x768\" \"800x600\" \"640x480\""
fi


#check the keyboard
$DIALOG --title "KEEP DEFAULT KEYBOARD MAP AND LAYOUT" \
--yesno "Would you like to KEEP the default (US) keyboard setup? \n
 if you choose NO you can change both the keymap and keyboard type\n
 from the default Setting \
US and pc102" 8 70 2> /dev/null
if [ ! $? = 0 ]; then
  vxkbset
fi
# I know this completely hoses the indentation of the xorg.conf file, but
# really don't know a good way around that.  Shoulda used perl.  ;)
START_LOOKING=false
rm -f /etc/X11/xorg.conf
. /etc/sysconfig/vector
cat $HOME/xorg.conf.new | grep -w " HorizSync" 1> /dev/null
if [ $? = 0 ]; then
  echo "no" > $TMP/fixsync
else
  echo "yes" > $TMP/fixsync
fi
fixsync=`cat $TMP/fixsync`
cat $HOME/xorg.conf.new | while read LINE ; do
  echo "$LINE" >> /etc/X11/xorg.conf
  if echo $LINE | grep Section | grep Screen 1> /dev/null ; then
    START_LOOKING=true
  fi
  if [ "$START_LOOKING" = "true" ]; then
   if echo $LINE | grep Monitor 1> /dev/null ; then
     if [ ! "$depth" = "none" ]; then
       echo "DefaultDepth $depth" >> /etc/X11/xorg.conf
     fi
     START_LOOKING=false
   fi
 fi
 ## add cyrillic fonts to font path
 if echo $LINE | grep 100dpi 1> /dev/null ; then
   echo "FontPath     \"/usr/X11R6/lib/X11/fonts/truetype/\"
FontPath     \"/usr/X11R6/lib/X11/fonts/local/\"
FontPath     \"/usr/X11R6/lib/X11/fonts/cyrillic/\" " >> /etc/X11/xorg.conf
 fi
 ##lets try a default resolution
 if [ ! "$res" = "none" ]; then 
  if echo $LINE | grep ^Depth 1> /dev/null ; then
    echo $finalres >> /etc/X11/xorg.conf
  fi
 fi
 ##now the wheel for a mouse
#if echo $LINE | grep Device | grep mouse 1> /dev/null ; then
#  echo "Option  \"ZAxisMapping\" \"4 5\"" >> /etc/X11/xorg.conf
#fi	
 
 ##now keyboard setting if none us
 if [ ! $XKBMAP ]; then
   XKBMAP=us
 fi
 if [ $XKBMAP ]; then
  if echo $LINE | grep Driver | grep kbd 1> /dev/null ; then
    echo "Option  \"XkbLayout\"  \"$XKBMAP\"   ## KEYBOARD_MAP!" >> /etc/X11/xorg.conf
  fi
 fi
 if [ $XKBMODEL ]; then
  if echo $LINE | grep Driver | grep kbd 1> /dev/null ; then
    echo "Option  \"XkbModel\"  \"$XKBMODEL\"" >> /etc/X11/xorg.conf
  fi
 fi
 if [ $XKBVAR ]; then
  if echo $LINE | grep Driver | grep kbd 1> /dev/null ; then
    echo "Option  \"Xkbvariant\"  \"$XKBVAR\"" >> /etc/X11/xorg.conf
  fi
 fi
 ##last monitor refresh if not auto detected
 if [ "$fixsync" = "yes" ]; then
  if echo $LINE | grep ModelName 1> /dev/null ; then
    echo "HorizSync $horiz" >> /etc/X11/xorg.conf
  fi
 fi
 if [ "$fixsync" = "yes" ]; then
  if echo $LINE | grep ModelName 1> /dev/null ; then
    echo "VertRefresh $vert" >> /etc/X11/xorg.conf
  fi
 fi				
done

echo Section \"DRI\" >> /etc/X11/xorg.conf
echo 	Mode         0666 >> /etc/X11/xorg.conf
echo EndSection >> /etc/X11/xorg.conf

rm -f $TMP/colordepth
rm -f $TMP/resolution
rm -f $TMP/vsync
rm -f $TMP/hsync
rm -f $HOME/xorg.conf.new
clear

##  Test for 2 video cards
if [ `grep "^Driver" /etc/X11/xorg.conf | grep -v kbd | grep -v mouse | wc | cut -d " " -f7` -gt 1 ]; then
     cards=`grep "^Vendor" /etc/X11/xorg.conf | grep -v Mon | cut -d " " -f3 | cut -c 2-`
     for i in $cards; do
       echo $i >>/tmp/cards
       card[$j]="$i"
       j=`expr $j + 1`
     done
     $DCMD --backtitle "$BACKTITLE" --title "Choose Video Card" --menu "\n
     We have found more than 1 video card, and for X to work \n
     we need to know which card your monitor is connected to.\n
     Choose which video card you would like to use" \
     20 74 8 \
     ${card[0]} ${card[0]} \
     ${card[1]} ${card[1]} \
     ${card[2]} ${card[2]} \
     2> $freply

     cp /etc/X11/xorg.conf /etc/X11/xorg.conf.backup

     card1=`cat $freply`
     card2=`cat /tmp/cards | grep -v $card1`
     sed '/Card[0-2]/ d' /etc/X11/xorg.conf > /etc/X11/xorg.conf.1
     rm /etc/X11/xorg.conf
     cat /etc/X11/xorg.conf.1 | while read LINE ; do
       echo "$LINE" >> /etc/X11/xorg.conf.2
       if echo $LINE | grep $card1 1> /dev/null ; then
         echo Identifier  \"Card0\" >> /etc/X11/xorg.conf.2
       fi
       if echo $LINE | grep Section | grep Screen 1> /dev/null ; then
         echo Device     \"Card0\" >> /etc/X11/xorg.conf.2
       fi
     done
     cat /etc/X11/xorg.conf.2 | while read LINE ; do
       echo "$LINE" >> /etc/X11/xorg.conf
       if echo $LINE | grep $card2 1> /dev/null ; then
         echo Identifier  \"Card1\" >> /etc/X11/xorg.conf
       fi
     done
       rm /tmp/cards
       rm /etc/X11/xorg.conf.1
       rm /etc/X11/xorg.conf.2
fi

### intel i810 video has a problem without this hack
cat /etc/X11/xorg.conf | grep Driver | grep i810 1> /dev/null

if [ $? = 0 ]; then
uname -r | cut -f 1,2 -d '.' > $TMP/kernel
kernel=`cat $TMP/kernel`
rm -f $TMP/kernel
if [ $kernel = "2.6" ]; then
/sbin/modprobe intel-agp && echo "/sbin/modprobe intel-agp" >> /etc/rc.d/rc.modules
fi
fi
echo "Testing configuration...........hold tight!!!!"
sleep 2
Xorg -probeonly :2 2> /dev/null
if [ $? = 0 ]; then



$DIALOG --title "X WAS CONFIGURED SUCCESSFULLY" \
  --msgbox "Your new X configuration file has been saved to /etc/X11/xorg.conf.
You may still need to add or adjust some values in the file to achieve the desired
screen resolution.  For example, some monitors would require \"HorizSync 30-55\" in
the \"Monitor\" section of the configuration file.  For complete information about 
making these adjustments, please refer to \"man xorg.conf\"." \
  11 76

else
$DIALOG --title "ERROR ERROR" \
 --yesno "There was an error in your X configuration. Would you like to edit the \n
 /etc/X11/xorg.conf file as autoconfig must have stumbled somewhere? \n
 Choosing yes here will start a text mode configuration utility. \n
 Choose no if you wish to edit later from the installation." \
 11 66 2> /dev/null
 if [ $? = 0 ]; then
 /usr/X11R6/bin/xorgcfg -textmode
 fi

 exit 1
 fi