commit f0dd740da74bd21b19393e15e7526e37279df21d · yemou.pink/scripts

+132

scritps/prefon

···

       1
       +
       #!/bin/sh

     

       2
       +
       # Script to preview fonts

     

       3
       +
       

     

       4
       +
       usage() {

     

       5
       +
       	printf '%b\n' "${0##*/} [-F FILE | -S | -t STRING] [OPTIONS]"                         \

     

       6
       +
       	              "actions:"                                                              \

     

       7
       +
       	              "\t-F FILE   - read from file"                                          \

     

       8
       +
       	              "\t-S        - read from stdin"                                         \

     

       9
       +
       	              "\t-t STRING - use a string"                                            \

     

       10
       +
       	              "\noptions:"                                                            \

     

       11
       +
       	              "\t-b SIZE   - border size"                                             \

     

       12
       +
       	              "\t-c COLORS - set the color of the text and background"                \

     

       13
       +
       	              "\t-f FONT   - which font to preview"                                   \

     

       14
       +
       	              "\t-h        - display this message"                                    \

     

       15
       +
       	              "\t-i        - do not generate an inverse image"                        \

     

       16
       +
       	              "\t-o FILE   - output file for the generated image"                     \

     

       17
       +
       	              "\t-s SIZE   - size of the font"                                        \

     

       18
       +
       	              "\ndefault values:"                                                     \

     

       19
       +
       	              "These values can be set before execution to change default values"     \

     

       20
       +
       	              "\tPREFON_ACTION=text (file, stdin, or text)"                           \

     

       21
       +
       	              "\tPREFON_BORDER_SIZE=16"                                               \

     

       22
       +
       	              "\tPREFON_COLORS=\"000000,ffffff\""                                     \

     

       23
       +
       	              "\tPREFON_FONT=\"monospace\""                                           \

     

       24
       +
       	              "\tPREFON_OUTPUT=\"/tmp/prefon.png\""                                   \

     

       25
       +
       	              "\tPREFON_SIZE=16"                                                      \

     

       26
       +
       	              "\tPREFON_TEXT=\"The quick brown fox jumps\\\n    over the lazy dog}\"" \

     

       27
       +
       	              "\tPREFON_INVERSE=vertical (horizontal, vertical, none)"

     

       28
       +
       }

     

       29
       +
       

     

       30
       +
       info() {

     

       31
       +
       	case $1 in

     

       32
       +
       		i ) prefix=INFO ;;

     

       33
       +
       		w ) prefix=WARNING ;;

     

       34
       +
       		e ) prefix=ERROR ;;

     

       35
       +
       		* ) printf '%s\n' "sus!" 1>&2; exit 1 ;;

     

       36
       +
       	esac

     

       37
       +
       	shift

     

       38
       +
       

     

       39
       +
       	printf "${0##*/}: $prefix: %b\n" "$*" 1>&2

     

       40
       +
       }

     

       41
       +
       

     

       42
       +
       # Default values

     

       43
       +
       PREFON_ACTION=${PREFON_ACTION:-text}

     

       44
       +
       PREFON_BORDER_SIZE=${PREFON_BORDER_SIZE:-16}

     

       45
       +
       PREFON_COLORS=${PREFON_COLORS:-000000,ffffff}

     

       46
       +
       PREFON_FONT="${PREFON_FONT:-monospace}"

     

       47
       +
       PREFON_OUTPUT="${PREFON_OUTPUT:-/tmp/prefon.png}"

     

       48
       +
       PREFON_SIZE=${PREFON_SIZE:-16}

     

       49
       +
       PREFON_TEXT="${PREFON_TEXT:-The quick brown fox jumps\n    over the lazy dog}"

     

       50
       +
       PREFON_INVERSE=${PREFON_WITHOUT_INVERSE:-vertical}

     

       51
       +
       

     

       52
       +
       # Handle arguments

     

       53
       +
       while [ "$*" ]

     

       54
       +
       do

     

       55
       +
       	case $1 in

     

       56
       +
       		-  ) shift; continue ;;

     

       57
       +
       		-- ) shift; break ;;

     

       58
       +
       		-* ) flag=${1#-}; shift ;;

     

       59
       +
       		*  ) shift; continue ;;

     

       60
       +
       	esac

     

       61
       +
       	while [ "$flag" ]

     

       62
       +
       	do

     

       63
       +
       		arg=${flag%${flag#?}}

     

       64
       +
       		case $arg in

     

       65
       +
       			F ) PREFON_ACTION="file"; PREFON_FILE=$1; shift ;;

     

       66
       +
       			S ) PREFON_ACTION=stdin; PREFON_FILE=/dev/stdin ;;

     

       67
       +
       			b ) PREFON_BORDER_SIZE=$1; shift ;;

     

       68
       +
       			c ) PREFON_COLORS=$1; shift ;;

     

       69
       +
       			f ) PREFON_FONT=$1; shift ;;

     

       70
       +
       			h ) usage; exit 0 ;;

     

       71
       +
       			i ) PREFON_INVERSE=$1; shift ;;

     

       72
       +
       			o ) PREFON_OUTPUT=$1; shift ;;

     

       73
       +
       			s ) PREFON_SIZE=$1; shift ;;

     

       74
       +
       			t ) PREFON_ACTION=text; PREFON_TEXT=$1; shift ;;

     

       75
       +
       			* ) printf '%s\n' "${0##*/}: -$arg: invalid argument" 1>&2; usage 1>&2; exit 1 ;;

     

       76
       +
       		esac

     

       77
       +
       		flag=${flag#?}

     

       78
       +
       	done

     

       79
       +
       done

     

       80
       +
       

     

       81
       +
       generate_image() {

     

       82
       +
       	_gen_img() {

     

       83
       +
       		convert -background "#$2" -bordercolor "#$2" -border "$PREFON_BORDER_SIZE" \

     

       84
       +
       			pango:"<span foreground=\"#$1\" font_desc=\"$PREFON_FONT $PREFON_SIZE\">$4</span>" "$3"

     

       85
       +
       	}

     

       86
       +
       

     

       87
       +
       	fgcolor=${PREFON_COLORS%,*}

     

       88
       +
       	bgcolor=${PREFON_COLORS#*,}

     

       89
       +
       

     

       90
       +
       	_gen_img "$fgcolor" "$bgcolor" "$PREFON_OUTPUT" "$1" || { info e failed to generate image; exit 1; }

     

       91
       +
       

     

       92
       +
       	[ "$PREFON_INVERSE" != "none" ] && {

     

       93
       +
       		inverse="${PREFON_OUTPUT%.*}"

     

       94
       +
       		inverse="${inverse}-inverse.${PREFON_OUTPUT##*.}"

     

       95
       +
       

     

       96
       +
       		_gen_img "$bgcolor" "$fgcolor" "$inverse" "$1" || { info e failed to generate image; exit 1; }

     

       97
       +
       

     

       98
       +
       		case $PREFON_INVERSE in

     

       99
       +
       			horizontal ) convert "$PREFON_OUTPUT" "$inverse" +append "$PREFON_OUTPUT" \

     

       100
       +
       					|| { info e failed to generate image; exit 1; } ;;

     

       101
       +
       			vertical   ) convert "$PREFON_OUTPUT" "$inverse" -append "$PREFON_OUTPUT" \

     

       102
       +
       					|| { info e failed to generate image; exit 1; } ;;

     

       103
       +
       			* ) info e "${PREFON_INVERSE}: is not a valid value for PREFON_INVERSE"; exit 1 ;;

     

       104
       +
       		esac

     

       105
       +
       

     

       106
       +
       		rm "$inverse" || info w failed to remove temporary file: "${inverse}"

     

       107
       +
       	}

     

       108
       +
       

     

       109
       +
       	printf '%s\n' "$PREFON_OUTPUT"

     

       110
       +
       }

     

       111
       +
       

     

       112
       +
       read_input() {

     

       113
       +
       	_output_file() {

     

       114
       +
       		while IFS= read -r line

     

       115
       +
       		do

     

       116
       +
       			printf '%s\n' "$line"

     

       117
       +
       		done < "$PREFON_FILE"

     

       118
       +
       	}

     

       119
       +
       

     

       120
       +
       	input="$(_output_file)"

     

       121
       +
       	generate_image "$input"

     

       122
       +
       }

     

       123
       +
       

     

       124
       +
       case $PREFON_ACTION in

     

       125
       +
       	file  ) [ -e "$PREFON_FILE" ] || { info e "'$PREFON_FILE' does not exist"; exit 1; }

     

       126
       +
       		wa ;;

     

       127
       +
       	stdin ) [ -e /dev/stdin ] || { info e "/dev/stdin does not exist"; exit 1; }

     

       128
       +
       		wa ;;

     

       129
       +
       	text  ) [ "$PREFON_TEXT" ] || { info e "string not provided"; exit 1; }

     

       130
       +
       		generate_image "$PREFON_TEXT" ;;

     

       131
       +
       	*     ) info e invalid action: $PREFON_ACTION; exit 1 ;;

     

       132
       +
       esac