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Converted icon renderer to use RSVG via C rather than pyrsvg

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This commit is contained in:
Joel Holdsworth 2008-08-12 22:13:26 +01:00
parent c12e134981
commit c14ee293fe
4 changed files with 230 additions and 14 deletions
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4
admin/Makefile.am
View file

@ -22,3 +22,7 @@ vgsuppression_SOURCES = $(admin_srcdir)/vgsuppression.c
vgsuppression_CPPFLAGS = $(AM_CPPFLAGS) -std=gnu99 -Wall -Werror -I$(top_srcdir)/src/
vgsuppression_LDADD = liblumi.a -lnobugmt -lpthread -ldl
noinst_PROGRAMS += rsvg-convert
rsvg_convert_SOURCES = $(admin_srcdir)/rsvg-convert.c
rsvg_convert_CPPFLAGS = $(AM_CPPFLAGS) -std=gnu99 -Wall -Werror
rsvg_convert_LDADD = -lcairo -lglib-2.0 -lgthread-2.0 -lrsvg-2

20
admin/render-icon.py
View file

@ -24,12 +24,11 @@ import getopt
from xml.dom import minidom
import os
import shutil
import cairo
import rsvg
#svgDir = "svg"
#prerenderedDir = "prerendered"
inkscapePath = "/usr/bin/inkscape"
rsvgPath = "./rsvg-convert"
artworkLayerPrefix = "artwork:"
def createDirectory( name ):
@ -105,18 +104,11 @@ def renderSvgRsvg(file_path, out_dir, artwork_name, rectangle, doc_size):
# Prepare a Cairo context
width = int(rectangle[2])
height = int(rectangle[3])
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
context = cairo.Context(surface)
context.translate(-rectangle[0], -rectangle[1])
# Load an render the SVG
svg = rsvg.Handle(file=file_path)
svg.render_cairo(context)
# Output a PNG file
surface.write_to_png(os.path.join(out_dir,
"%ix%i/%s.png" % (width, height, artwork_name)))
os.spawnlp(os.P_WAIT, rsvgPath, rsvgPath,
"--source-rect=%g:%g:%g:%g" % (rectangle[0], rectangle[1], rectangle[2], rectangle[3]),
"--output=" + os.path.join(out_dir, "%gx%g/%s.png" % (rectangle[2], rectangle[3], artwork_name)),
file_path)
def renderSvgIcon(file_path, out_dir):
artwork_name, doc_size, rectangles = parseSVG(file_path)

219
admin/rsvg-convert.c Normal file
View file

@ -0,0 +1,219 @@
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*-
rsvg-convert.c: Command line utility for exercising rsvg with cairo.
Copyright (C) 2005 Red Hat, Inc.
Copyright (C) 2005 Dom Lachowicz <cinamod@hotmail.com>
Copyright (C) 2005 Caleb Moore <c.moore@student.unsw.edu.au>
Copyright (C) 2008 Joel Holdsworth <joel@airwebreathe.org.uk>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this program; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Authors: Carl Worth <cworth@cworth.org>,
Caleb Moore <c.moore@student.unsw.edu.au>,
Dom Lachowicz <cinamod@hotmail.com>,
Joel Holdsworth <joel@airwebreathe.org.uk>
*/
#ifndef N_
#define N_(X) X
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <librsvg-2/librsvg/rsvg.h>
#include <librsvg-2/librsvg/rsvg-cairo.h>
#ifdef CAIRO_HAS_PS_SURFACE
#include <cairo-ps.h>
#endif
#ifdef CAIRO_HAS_PDF_SURFACE
#include <cairo-pdf.h>
#endif
#ifdef CAIRO_HAS_SVG_SURFACE
#include <cairo-svg.h>
#endif
#ifndef _
#define _(X) X
#endif
struct RsvgSizeCallbackData {
gint width;
gint height;
};
struct RsvgSourceRectangle {
double left;
double top;
double width;
double height;
};
static void
display_error (GError * err)
{
if (err) {
g_print ("%s", err->message);
g_error_free (err);
}
}
static void
rsvg_cairo_size_callback (int *width, int *height, gpointer data)
{
RsvgDimensionData *dimensions = data;
*width = dimensions->width;
*height = dimensions->height;
}
static cairo_status_t
rsvg_cairo_write_func (void *closure, const unsigned char *data, unsigned int length)
{
fwrite (data, 1, length, (FILE *) closure);
return CAIRO_STATUS_SUCCESS;
}
int
main (int argc, char **argv)
{
GOptionContext *g_option_context;
int width = -1;
int height = -1;
char *source_rect_string = NULL;
char *output = NULL;
GError *error = NULL;
char *filename = NULL;
char **args = NULL;
RsvgHandle *rsvg;
cairo_surface_t *surface = NULL;
cairo_t *cr = NULL;
RsvgDimensionData dimensions;
FILE *output_file = stdout;
struct RsvgSourceRectangle source_rect = {0, 0, 0, 0};
GOptionEntry options_table[] = {
{"width", 'w', 0, G_OPTION_ARG_INT, &width,
N_("width [optional; defaults to the SVG's width]"), N_("<int>")},
{"height", 'h', 0, G_OPTION_ARG_INT, &height,
N_("height [optional; defaults to the SVG's height]"), N_("<int>")},
{"source-rect", 'r', 0, G_OPTION_ARG_STRING, &source_rect_string,
N_("source rectangle [optional; defaults to rectangle of the SVG document]"), N_("left:top:width:height")},
{"output", 'o', 0, G_OPTION_ARG_STRING, &output,
N_("output filename"), NULL},
{G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &args, NULL, N_("FILE")},
{NULL}
};
g_thread_init(NULL);
g_option_context = g_option_context_new (_("- SVG Converter"));
g_option_context_add_main_entries (g_option_context, options_table, NULL);
g_option_context_set_help_enabled (g_option_context, TRUE);
if (!g_option_context_parse (g_option_context, &argc, &argv, &error)) {
display_error (error);
exit (1);
}
g_option_context_free (g_option_context);
if (output != NULL) {
output_file = fopen (output, "wb");
if (!output_file) {
fprintf (stderr, _("Error saving to file: %s\n"), output);
exit (1);
}
}
if (args[0] != NULL) {
filename = args[0];
}
/* Parse the source rect */
if(source_rect_string != NULL) {
const int n = sscanf(source_rect_string, "%lg:%lg:%lg:%lg",
&source_rect.left, &source_rect.top,
&source_rect.width, &source_rect.height);
if(n != 4 || source_rect.width <= 0.0 || source_rect.height < 0.0) {
fprintf (stderr, _("Invalid source rect: %s\n"), source_rect_string);
exit(1);
}
}
rsvg_init ();
rsvg = rsvg_handle_new_from_file (filename, &error);
if (!rsvg) {
fprintf (stderr, _("Error reading SVG:"));
display_error (error);
fprintf (stderr, "\n");
exit (1);
}
/* if the user did not specify a source rectangle, get the page size from the SVG */
if(source_rect_string == NULL) {
rsvg_handle_set_size_callback (rsvg, rsvg_cairo_size_callback, &dimensions, NULL);
source_rect.left = 0;
source_rect.top = 0;
source_rect.width = dimensions.width;
source_rect.height = dimensions.height;
}
rsvg_handle_get_dimensions (rsvg, &dimensions);
if(width != -1 && height != -1) {
dimensions.width = width;
dimensions.height = height;
} else if(source_rect_string != NULL) {
dimensions.width = source_rect.width;
dimensions.height = source_rect.height;
}
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
dimensions.width, dimensions.height);
cr = cairo_create (surface);
cairo_translate(cr, -source_rect.left, -source_rect.top);
if(width != -1 && height != -1 && source_rect_string != NULL) {
cairo_scale(cr, (double)dimensions.width / (double)source_rect.width,
(double)dimensions.height / (double)source_rect.height);
}
rsvg_handle_render_cairo (rsvg, cr);
cairo_surface_write_to_png_stream (surface, rsvg_cairo_write_func, output_file);
g_object_unref (G_OBJECT (rsvg));
cairo_destroy (cr);
cairo_surface_destroy (surface);
fclose (output_file);
rsvg_term ();
return 0;
}

1
icons/Makefile.am
View file

@ -33,6 +33,7 @@ iconcommand = python $(top_srcdir)/admin/render-icon.py
48x48pre = $(prerendereddir)/48x48
lumigui_DEPENDENCIES += \
rsvg-convert \
$(16x16)/arrow.png $(22x22)/arrow.png $(24x24)/arrow.png $(32x32)/arrow.png $(48x48)/arrow.png \
$(16x16)/i-beam.png $(22x22)/i-beam.png $(24x24)/i-beam.png $(32x32)/i-beam.png $(48x48)/i-beam.png \
$(16x16)/assets-panel.png \