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/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
/*
* Copyright © 2004,2006 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Carl D. Worth <cworth@cworth.org>
*/
#include "cairo-boilerplate.h"
#include "cairo-boilerplate-svg.h"
#include "cairo-boilerplate-svg-private.h"
#include <cairo-svg.h>
#include <cairo-svg-surface-private.h>
#include <cairo-paginated-surface-private.h>
#if HAVE_SIGNAL_H
#include <stdlib.h>
#include <signal.h>
#endif
cairo_user_data_key_t svg_closure_key;
typedef struct _svg_target_closure
{
char *filename;
int width, height;
cairo_surface_t *target;
} svg_target_closure_t;
cairo_surface_t *
_cairo_boilerplate_svg_create_surface (const char *name,
cairo_content_t content,
int width,
int height,
int max_width,
int max_height,
cairo_boilerplate_mode_t mode,
int id,
void **closure)
{
svg_target_closure_t *ptc;
cairo_surface_t *surface;
cairo_status_t status;
*closure = ptc = xmalloc (sizeof (svg_target_closure_t));
ptc->width = width;
ptc->height = height;
xasprintf (&ptc->filename, "%s-out.svg", name);
xunlink (ptc->filename);
surface = cairo_svg_surface_create (ptc->filename, width, height);
if (cairo_surface_status (surface))
goto CLEANUP_FILENAME;
cairo_surface_set_fallback_resolution (surface, 72., 72.);
if (content == CAIRO_CONTENT_COLOR) {
ptc->target = surface;
surface = cairo_surface_create_similar (ptc->target,
CAIRO_CONTENT_COLOR,
width, height);
if (cairo_surface_status (surface))
goto CLEANUP_TARGET;
} else {
ptc->target = NULL;
}
status = cairo_surface_set_user_data (surface, &svg_closure_key, ptc, NULL);
if (status == CAIRO_STATUS_SUCCESS)
return surface;
cairo_surface_destroy (surface);
surface = cairo_boilerplate_surface_create_in_error (status);
CLEANUP_TARGET:
cairo_surface_destroy (ptc->target);
CLEANUP_FILENAME:
free (ptc->filename);
free (ptc);
return surface;
}
cairo_status_t
_cairo_boilerplate_svg_finish_surface (cairo_surface_t *surface)
{
svg_target_closure_t *ptc = cairo_surface_get_user_data (surface, &svg_closure_key);
cairo_status_t status;
/* Both surface and ptc->target were originally created at the
* same dimensions. We want a 1:1 copy here, so we first clear any
* device offset on surface.
*
* In a more realistic use case of device offsets, the target of
* this copying would be of a different size than the source, and
* the offset would be desirable during the copy operation. */
cairo_surface_set_device_offset (surface, 0, 0);
if (ptc->target) {
cairo_t *cr;
cr = cairo_create (ptc->target);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_paint (cr);
cairo_show_page (cr);
status = cairo_status (cr);
cairo_destroy (cr);
if (status)
return status;
cairo_surface_finish (surface);
status = cairo_surface_status (surface);
if (status)
return status;
surface = ptc->target;
}
cairo_surface_finish (surface);
status = cairo_surface_status (surface);
if (status)
return status;
return CAIRO_STATUS_SUCCESS;
}
cairo_status_t
_cairo_boilerplate_svg_surface_write_to_png (cairo_surface_t *surface, const char *filename)
{
svg_target_closure_t *ptc = cairo_surface_get_user_data (surface, &svg_closure_key);
char command[4096];
int exitstatus;
sprintf (command, "./svg2png %s %s",
ptc->filename, filename);
exitstatus = system (command);
#if _XOPEN_SOURCE && HAVE_SIGNAL_H
if (WIFSIGNALED (exitstatus))
raise (WTERMSIG (exitstatus));
#endif
if (exitstatus)
return CAIRO_STATUS_WRITE_ERROR;
return CAIRO_STATUS_SUCCESS;
}
static cairo_surface_t *
_cairo_boilerplate_svg_convert_to_image (cairo_surface_t *surface)
{
svg_target_closure_t *ptc = cairo_surface_get_user_data (surface,
&svg_closure_key);
FILE *file;
cairo_surface_t *image;
file = cairo_boilerplate_open_any2ppm (ptc->filename, 0);
if (file == NULL)
return cairo_boilerplate_surface_create_in_error (CAIRO_STATUS_READ_ERROR);
image = cairo_boilerplate_image_surface_create_from_ppm_stream (file);
fclose (file);
return image;
}
cairo_surface_t *
_cairo_boilerplate_svg_get_image_surface (cairo_surface_t *surface,
int width,
int height)
{
cairo_surface_t *image;
image = _cairo_boilerplate_svg_convert_to_image (surface);
cairo_surface_set_device_offset (image,
cairo_image_surface_get_width (image) - width,
cairo_image_surface_get_height (image) - height);
surface = _cairo_boilerplate_get_image_surface (image, width, height);
cairo_surface_destroy (image);
return surface;
}
void
_cairo_boilerplate_svg_cleanup (void *closure)
{
svg_target_closure_t *ptc = closure;
if (ptc->target)
cairo_surface_destroy (ptc->target);
free (ptc->filename);
free (ptc);
}
cairo_status_t
cairo_boilerplate_svg_surface_force_fallbacks (cairo_surface_t *abstract_surface)
{
cairo_paginated_surface_t *paginated = (cairo_paginated_surface_t*) abstract_surface;
cairo_svg_surface_t *surface;
if (cairo_surface_get_type (abstract_surface) != CAIRO_SURFACE_TYPE_PDF)
return CAIRO_STATUS_SURFACE_TYPE_MISMATCH;
surface = (cairo_svg_surface_t*) paginated->target;
surface->force_fallbacks = TRUE;
return CAIRO_STATUS_SUCCESS;
}
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