winmess-dim

#!/usr/bin/env bash
# 2021-08-27   WinMess Inspired by WinGrid-antiX
#              Get screen resolutions and compose the placement hint.

PROGNAME="${0##*/}"
PROGDIR="${0%/*}"
PROGVERSION=$($PROGDIR/winmess-version)
LIBDIR="$PROGDIR/../lib"

# Utility functions
# -----------------

# Location of utility functions.
LIBFILE="$LIBDIR/winmess-lib.sh"

. $LIBFILE

# Help and Information
# --------------------

init_help $1

# User Configurable Settings
# --------------------------

# Location of the user configurable settings file.
CONFIGFILE="$HOME/.config/winmess.conf"

# Obtain the user specifiable configuration.
if [ -f $CONFIGFILE ]
then
    . $CONFIGFILE
else
    # Display an error message and exit.
    ERRMSG=" $CONFIGFILE \n Was not found \n\n Exiting..."
    error "$ERRMSG"
    exit 1
fi

# Initialize screen resolutions.
init_res

# Call xwininfo.
cat <<EOS

Screen Resolutions and the Placement Hint
    For use in $HOME/.config/winmess.conf

Please, click on a window to see the hint to it's placement...
EOS
INFO=$(xwininfo)
AX=$(field 'Absolute upper-left X' "$INFO")
AY=$(field 'Absolute upper-left Y' "$INFO")
RX=$(field 'Relative upper-left X' "$INFO")
RY=$(field 'Relative upper-left Y' "$INFO")

X=$(($AX-$RX))
Y=$(($AY-$RY))

W=$(field Width "$INFO")
H=$(field Height "$INFO")

cat <<EOS

The placement hint: "x:$X y:$Y w:$W h:$H"
    May be some mino inaccuracies in values (less than 10 pixels)...

Screen width: $SCREENWIDTH
Screen height: $SCREENHEIGHT

Screen half width: $SCREENHALFWIDTH
Screen half height: $SCREENHALFHEIGHT

Gravity: $GRAVITY
   Always zero though...

EOS