mirror of https://github.com/GNOME/gimp.git
tools: scripts to extract a single SVG icon from a source file.
SVG sources contains many icons and each icon is extracted by its id.
This commit is contained in:
Jehan
parent
1427b2c795
commit
b0af146ea3
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@ -3,7 +3,9 @@
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libgimpbase = $(top_builddir)/libgimpbase/libgimpbase-$(GIMP_API_VERSION).la
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if ENABLE_VECTOR_ICONS
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invert_svg = invert-svg
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svg_icon_tools = invert-svg compute-svg-viewbox
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else
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svg_icon_tools =
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endif
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if WITH_PDBGEN
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@ -28,7 +30,7 @@ bin_PROGRAMS = gimptool-2.0
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endif
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noinst_PROGRAMS = test-clipboard $(invert_svg)
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noinst_PROGRAMS = test-clipboard $(svg_icon_tools)
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EXTRA_PROGRAMS = \
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kernelgen
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@ -53,6 +55,14 @@ invert_svg_SOURCES = invert-svg.c
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invert_svg_LDADD = \
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$(GLIB_LIBS) \
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$(GIO_LIBS)
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compute_svg_viewbox_SOURCES = compute-svg-viewbox.c
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compute_svg_viewbox_CFLAGS = \
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$(SVG_CFLAGS)
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compute_svg_viewbox_LDADD = \
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$(SVG_LIBS)
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endif
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AM_CPPFLAGS = \
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@ -0,0 +1,85 @@
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/* compute-svg-viewbox.c
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* Copyright (C) 2016 Jehan
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <librsvg/rsvg.h>
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#include <stdio.h>
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#include <stdlib.h>
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int main (int argc, char **argv)
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{
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RsvgHandle *handle;
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RsvgPositionData position_data;
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RsvgDimensionData dimension;
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gchar *endptr;
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gchar *path;
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gchar *id;
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gint prev_x;
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gint prev_y;
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if (argc != 5)
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{
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fprintf (stderr, "Usage: compute-svg-viewbox path object_id x y\n");
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return 1;
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}
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prev_x = strtol (argv[3], &endptr, 10);
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if (endptr == argv[3])
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{
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fprintf (stderr, "Error: the third parameter must be an integer\n");
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return 1;
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}
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prev_y = strtol (argv[4], &endptr, 10);
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if (endptr == argv[4])
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{
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fprintf (stderr, "Error: the fourth parameter must be an integer\n");
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return 1;
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}
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path = argv[1];
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handle = rsvg_handle_new_from_file (path, NULL);
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if (! handle)
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{
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fprintf (stderr, "Error: wrong path \"%s\".\n", path);
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return 1;
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}
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id = g_strdup_printf("#%s", argv[2]);
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if (! rsvg_handle_has_sub (handle, id))
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{
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fprintf (stderr, "Error: the id \"%s\" does not exist.\n", id);
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g_object_unref (handle);
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g_free (id);
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return 1;
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}
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rsvg_handle_get_position_sub (handle, &position_data, id);
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rsvg_handle_get_dimensions_sub (handle, &dimension, id);
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if (dimension.width != dimension.height)
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{
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/* Right now, we are constraining all objects into square objects. */
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fprintf (stderr, "WARNING: object \"%s\" has unexpected size %dx%d [pos: (%d, %d)].\n",
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id, dimension.width, dimension.height,
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position_data.x, position_data.y);
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}
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printf("viewBox=\"%d %d %d %d\"",
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position_data.x + prev_x, position_data.y + prev_y,
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dimension.width, dimension.height);
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g_object_unref (handle);
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g_free (id);
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return 0;
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}
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@ -0,0 +1,117 @@
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#!/bin/sh
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# extract-vector-icon.sh
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# Copyright (C) 2016 Jehan
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This script generates a new SVG file by extracting a single object by
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# its id, from a source SVG, and updating the viewBox (canvas) size and
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# position.
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usage ()
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{
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printf "Usage: extract-vector-icon.sh source icon-name [width height]\n"
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printf "Create the file 'icon-name.svg' from the \`source\` SVG.\n"
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}
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if [ "$#" != 2 ]; then
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if [ "$#" != 4 ]; then
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usage
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exit 1
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fi
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fi
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# The script is run from $(top_builddir)/icons/Symbolic/
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compute_viewbox="$(pwd)/../../tools/compute-svg-viewbox"
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source="$1"
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id="$2"
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if [ "$#" == 4 ]; then
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# The expected display width/height for the image.
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width="$3"
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height="$4"
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else
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# We base the design of our scalable icons on 16x16 pixels.
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width="16"
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height="16"
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fi
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# Extract the icon code.
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#icon=`xmllint "$source" --xpath '//*[local-name()="g" and @id="'$id'"]'`
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icon=`xmllint "$source" --xpath '//*[@id="'$id'"]'`
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# Get rid of any transform on the top node to help librsvg.
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#icon=`echo $icon | sed 's/^\(<[^>]*\) transform="[^"]*"/\1/'`
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if [ $? -ne 0 ]; then
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>&2 echo "extract-vector-icon.sh: object id \"$id\" not found in \"$source\" ";
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exit 1;
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fi;
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# The typical namespaces declared at start of a SVG made with Inkscape.
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# Since we are not sure of what namespace will use the object XML, and
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# since we don't want to end up with invalid XML, we just keep them all
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# declared here.
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svg_start='<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!-- Created by GIMP build. -->
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<svg
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xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:cc="http://creativecommons.org/ns#"
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xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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xmlns:svg="http://www.w3.org/2000/svg"
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xmlns="http://www.w3.org/2000/svg"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
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version="1.1"
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'
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# Grab the defined color palette.
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defs=`xmllint "$source" --xpath '//*[local-name()="defs"]'`
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# Create a temporary SVG file with the main information.
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svg_temp="`mktemp ./${id}-XXXX.svg`"
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echo "$svg_start>$defs$icon</svg>" > $svg_temp
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x=0
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y=0
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# In case the source SVG has a viewBox not starting at (0, 0), get
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# the current origin coordinates.
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#viewBox=`xmllint $svg_temp --xpath '/*[local-name()="svg"]/@viewBox'`
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#if [ $? -eq 0 ]; then
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# x=`echo $viewBox| sed 's/ *viewBox *= *"\([0-9]\+\) .*$/\1/'`
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# y=`echo $viewBox| sed 's/ *viewBox *= *"[0-9]\+ \+\([0-9]\+\).*$/\1/'`
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#fi;
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# Compute the viewBox that we want to set to our generated SVG.
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viewBox=`$compute_viewbox "$svg_temp" "$id" $x $y`
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if [ $? -ne 0 ]; then
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>&2 echo "extract-vector-icon.sh: error running \`$compute_viewbox "$tmp" "$id" $x $y\`.";
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rm -f $svg_temp
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exit 1;
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fi;
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rm -f $svg_temp
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# The finale SVG file with properly set viewBox.
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svg="$svg_start $viewBox"
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if [ "$#" == 5 ]; then
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svg="$svg
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width=\"$width\"
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height=\"$height\""
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fi
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svg="$svg>
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<title>$id</title>
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$defs
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$icon
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</svg>"
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echo "$svg"
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