render-pngs

#!/bin/bash

# ======================================
# ANSI
# ======================================
ansi_reset='\e[0m'

bold='\e[1m'

blue='\e[34m'

yellow_b='\e[1;33m'

red_b='\e[1;31m'

darkgray_b='\e[1;90m'


# ======================================
#   Constants
# ======================================
svg_src="SVG"

png_dest=".conky-vision-icons"

default_color="#000"

default_size="32"


# ======================================
# User Input
# ======================================
echo

echo -e "${bold}Enter icon icon_size (skip for default): ${ansi_reset}"
read -r icon_size

echo -e "${bold}Enter 1 or more colors (space or tab separated): ${ansi_reset}"
read -r -a icon_colors


# ======================================
# Checks
# ======================================
# If no colors given, add default color to array
[ ${#icon_colors[*]} -eq 0 ] && icon_colors[0]="$default_color"

mkdir -p "$png_dest"

icon_size=${icon_size:-"$default_size"}


# ======================================
# RENDER
# ======================================
for color in ${icon_colors[*]}; do
    echo
    echo -e "${darkgray_b}---------------------------------------${ansi_reset}"


    # Check whether the png folder already exits
    if [ -d "$png_dest/${color}__$icon_size" ]; then
        echo
        echo -e "${red_b}$png_dest/${color}__$icon_size exists!${ansi_reset}"
        continue
    fi


    mkdir -p "${color}__$icon_size"


    trap 'sed -i "s/<path fill=\"$color\"/<path/" $svg_src/*.svg; exit' INT TERM


    sed -i "s/<path/<path fill=\"$color\"/" "$svg_src"/*.svg


    # Loop through SVG folder & render png's
    for i in $svg_src/*.svg; do

        # Get basename
        i2=${i##*/}  i2=${i2%.*}

        # If png exists, skip
        if [ -f "${color}__$icon_size/$i2.png" ]; then
            echo
            echo -e "${darkgray_b}${color}__$icon_size/$i2.png exists.${ansi_reset}"

        else
            echo
            echo -e "${blue}Rendering ${yellow_b}${color}__$icon_size/$i2.png${ansi_reset}"

            inkscape -e "${color}__$icon_size/$i2.png" "$i" \
                     --export-width="$icon_size" --export-height="$icon_size" &> /dev/null
        fi
    done


    # Inkscape has trouble exporting into
    # arbitrary depth paths, so move manually
    mv "${color}__$icon_size" "$png_dest"


    # Revert edit of svg's before next iteration or EXIT
    sed -i "s/<path fill=\"$color\"/<path/" "$svg_src"/*.svg

done


# If notify-send installed, send notif
hash notify-send 2>/dev/null &&
notify-send -i 'terminal' \
            -a 'Terminal' \
            'Terminal'    \
            'Finished rendering icons!'