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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-private.h"
#include <cairo-pdf.h>
#include <cairo-pdf-surface-private.h>
#include <cairo-paginated-surface-private.h>
#if ! CAIRO_HAS_META_SURFACE
#define CAIRO_SURFACE_TYPE_META CAIRO_INTERNAL_SURFACE_TYPE_META
#endif
static const cairo_user_data_key_t pdf_closure_key;
typedef struct _pdf_target_closure
{
char *filename;
int width;
int height;
cairo_surface_t *target;
} pdf_target_closure_t;
#define ARRAY_LENGTH(__array) ((int) (sizeof (__array) / sizeof (__array[0])))
static cairo_surface_t *
_cairo_boilerplate_pdf_create_surface (const char *name,
cairo_content_t content,
double width,
double height,
double max_width,
double max_height,
cairo_boilerplate_mode_t mode,
int id,
void **closure)
{
pdf_target_closure_t *ptc;
cairo_surface_t *surface;
cairo_status_t status;
/* Sanitize back to a real cairo_content_t value. */
if (content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED)
content = CAIRO_CONTENT_COLOR_ALPHA;
*closure = ptc = xmalloc (sizeof (pdf_target_closure_t));
ptc->width = ceil (width);
ptc->height = ceil (height);
xasprintf (&ptc->filename, "%s.out.pdf", name);
xunlink (ptc->filename);
surface = cairo_pdf_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,
ptc->width, ptc->height);
if (cairo_surface_status (surface))
goto CLEANUP_TARGET;
} else {
ptc->target = NULL;
}
status = cairo_surface_set_user_data (surface, &pdf_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;
}
static cairo_status_t
_cairo_boilerplate_pdf_finish_surface (cairo_surface_t *surface)
{
pdf_target_closure_t *ptc = cairo_surface_get_user_data (surface,
&pdf_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;
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;
}
static cairo_status_t
_cairo_boilerplate_pdf_surface_write_to_png (cairo_surface_t *surface, const char *filename)
{
pdf_target_closure_t *ptc = cairo_surface_get_user_data (surface, &pdf_closure_key);
char command[4096];
int exitstatus;
sprintf (command, "./pdf2png %s %s 1",
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_pdf_convert_to_image (cairo_surface_t *surface, int page)
{
pdf_target_closure_t *ptc = cairo_surface_get_user_data (surface,
&pdf_closure_key);
return cairo_boilerplate_convert_to_image (ptc->filename, page+1);
}
static cairo_surface_t *
_cairo_boilerplate_pdf_get_image_surface (cairo_surface_t *surface,
int page,
int width,
int height)
{
cairo_surface_t *image;
image = _cairo_boilerplate_pdf_convert_to_image (surface, page);
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, 0, width, height);
cairo_surface_destroy (image);
return surface;
}
static void
_cairo_boilerplate_pdf_cleanup (void *closure)
{
pdf_target_closure_t *ptc = closure;
if (ptc->target)
cairo_surface_destroy (ptc->target);
free (ptc->filename);
free (ptc);
}
static void
_cairo_boilerplate_pdf_force_fallbacks (cairo_surface_t *abstract_surface,
unsigned int flags)
{
pdf_target_closure_t *ptc = cairo_surface_get_user_data (abstract_surface,
&pdf_closure_key);
cairo_paginated_surface_t *paginated;
cairo_pdf_surface_t *surface;
if (ptc->target)
abstract_surface = ptc->target;
paginated = (cairo_paginated_surface_t*) abstract_surface;
surface = (cairo_pdf_surface_t*) paginated->target;
surface->force_fallbacks = TRUE;
}
static const cairo_boilerplate_target_t targets[] = {
{
"pdf", "pdf", ".pdf", NULL,
CAIRO_SURFACE_TYPE_PDF,
CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED, 0,
_cairo_boilerplate_pdf_create_surface,
_cairo_boilerplate_pdf_force_fallbacks,
_cairo_boilerplate_pdf_finish_surface,
_cairo_boilerplate_pdf_get_image_surface,
_cairo_boilerplate_pdf_surface_write_to_png,
_cairo_boilerplate_pdf_cleanup,
NULL, TRUE, TRUE
},
{
"pdf", "pdf", ".pdf", NULL,
CAIRO_SURFACE_TYPE_META, CAIRO_CONTENT_COLOR, 0,
_cairo_boilerplate_pdf_create_surface,
_cairo_boilerplate_pdf_force_fallbacks,
_cairo_boilerplate_pdf_finish_surface,
_cairo_boilerplate_pdf_get_image_surface,
_cairo_boilerplate_pdf_surface_write_to_png,
_cairo_boilerplate_pdf_cleanup,
NULL, TRUE, TRUE
},
};
CAIRO_BOILERPLATE (pdf, targets)
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