added script to set wallpapers

wallpaper.sh

@@ -0,0 +1,184 @@
+#!/bin/bash
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Copyright 2020 Pavel "Pasha-From-Russia" Borovskikh
+# based on work of 
+#   Alessandro "Locutus73" Miele
+#   Alexey "Sorgelig" Melnikov 
+
+# You can download the latest version of this script from:
+# https://github.com/MiSTer-devel/Scripts_MiSTer
+
+# Version 1.0 - 2020-11-23 - First commit
+
+
+
+# ========= OPTIONS ==================
+
+DIALOG_TITLE="MiSTer Wallpaper Manager"
+WALLPAPER_DIR=/media/fat/Backgrounds
+
+# ========= ADVANCED OPTIONS =========
+
+DIALOG_HEIGHT="31"
+
+# ========= CODE STARTS HERE =========
+
+function checkTERMINAL()
+{
+	if [[ ! (-t 0 && -t 1 && -t 2) ]]; then
+		echo "This script must be run"
+		echo "from an interactive terminal."
+		echo "Please press F9 (F12 to exit)"
+		echo "or use SSH."
+		exit 2
+	fi
+}
+
+function setupDIALOG()
+{
+	local ORIGINAL_SCRIPT_PATH="${0}"
+	if which dialog > /dev/null 2>&1
+	then
+		DIALOG="dialog"
+	else
+		DIALOG="/media/fat/linux/dialog/dialog"
+		if [ ! -f ${DIALOG} ]; then
+			set -e
+			exit 0
+		fi
+
+		export LD_LIBRARY_PATH="/media/fat/linux/dialog"
+	fi
+
+	rm -f "/media/fat/config/dialogrc"
+	if [ ! -f "~/.dialogrc" ]; then
+		export DIALOGRC="$(dirname ${ORIGINAL_SCRIPT_PATH})/.dialogrc"
+		if [ ! -f "${DIALOGRC}" ]; then
+			${DIALOG} --create-rc "${DIALOGRC}"
+			sed -i "s/use_colors = OFF/use_colors = ON/g" "${DIALOGRC}"
+			sed -i "s/screen_color = (CYAN,BLUE,ON)/screen_color = (CYAN,BLACK,ON)/g" "${DIALOGRC}"
+			sync
+		fi
+	fi
+
+	export NCURSES_NO_UTF8_ACS=1
+
+	: ${DIALOG_OK=0}
+	: ${DIALOG_CANCEL=1}
+	: ${DIALOG_ESC=255}
+
+	: ${SIG_NONE=0}
+	: ${SIG_HUP=1}
+	: ${SIG_INT=2}
+	: ${SIG_QUIT=3}
+	: ${SIG_KILL=9}
+	: ${SIG_TERM=15}
+}
+
+function setupDIALOGtempfile()
+{
+	DIALOG_TEMPFILE=`(DIALOG_TEMPFILE) 2>/dev/null` || DIALOG_TEMPFILE=/tmp/dialog_tempfile$$
+	trap "rm -f $DIALOG_TEMPFILE 2>/dev/null" 0 $SIG_NONE $SIG_HUP $SIG_INT $SIG_QUIT $SIG_TERM $SIG_KILL
+}
+
+function readDIALOGtempfile()
+{
+	DIALOG_RETVAL=$?
+	DIALOG_OUTPUT="$(cat ${DIALOG_TEMPFILE})"
+}
+
+function showInfoMsg()
+{
+	[ "$1" == "" ] && return
+	${DIALOG} --title "${DIALOG_TITLE}" --infobox "$1" 0 0
+	local WAIT="$2"
+	[ "$WAIT" == "" ] && return
+	WAIT=$((WAIT))
+	sleep $WAIT
+}
+
+function forceExit()
+{
+	showInfoMsg "$1" 5
+	clear
+	set -e
+	exit 1
+}
+
+function showMainMENU()
+{
+	OIFS="$IFS"
+	IFS=$'\n'
+	local WALLPAPERS=`ls $WALLPAPER_DIR 2>/dev/null`
+	if [ "$WALLPAPERS" == "" ]; then
+		IFS="$OIFS"
+		forceExit "No wallpapers found in $WALLPAPER_DIR"
+	fi
+	local INDEX=0
+	local MENU_ITEMS=""
+	for FILE in `ls $WALLPAPER_DIR 2>/dev/null`; do
+		INDEX=$((INDEX + 1))
+		[[ "$FILE" == *" "* ]] && continue
+		MENU_ITEMS="${MENU_ITEMS} ${FILE} ${FILE} "
+	done
+	IFS="$OIFS"
+	setupDIALOGtempfile
+	${DIALOG} --clear --no-tags --ok-label "Select" \
+		--title "${DIALOG_TITLE}" \
+		--menu "Please choose an option.\nUse arrow keys, tab, space, enter and esc.\nPut wallpapers to $WALLPAPER_DIR.\nNo spaces allowed in filenames." ${DIALOG_HEIGHT} 0 999 \
+		${MENU_ITEMS} \
+		2> ${DIALOG_TEMPFILE}
+	readDIALOGtempfile
+}
+
+function process()
+{
+	[ "$1" == "" ] && return
+	local FILE=$WALLPAPER_DIR/"$1"
+	if [ ! -f "$FILE" ]; then
+		showInfoMsg "File not found!" 2
+		return
+	fi
+	local EXT=${1#*.}
+	local DEST=/media/fat/menu.$EXT
+	showInfoMsg "Copying $1... to $DEST" 1
+	rm -f /media/fat/menu.jpg
+	rm -f /media/fat/menu.png
+	cp -f "${FILE}" ${DEST} || showInfoMsg "File copy error!" 2
+	sync
+}
+
+clear
+checkTERMINAL
+setupDIALOG
+
+[ ! -d $WALLPAPER_DIR ] && forceExit "$WALLPAPER_DIR not found!"
+
+while true; do
+	showMainMENU
+	case ${DIALOG_RETVAL} in
+		${DIALOG_OK})
+			process "${DIALOG_OUTPUT}"
+			;;
+		*)
+			break
+			;;
+	esac
+done
+
+clear
+reboot now
+forceExit "Rebooting ..." 5