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Diffstat (limited to 'libs/cairo-1.16.0/boilerplate/cairo-boilerplate-pdf.c')
-rw-r--r--libs/cairo-1.16.0/boilerplate/cairo-boilerplate-pdf.c279
1 files changed, 279 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/boilerplate/cairo-boilerplate-pdf.c b/libs/cairo-1.16.0/boilerplate/cairo-boilerplate-pdf.c
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index 0000000..c6c6b63
--- /dev/null
+++ b/libs/cairo-1.16.0/boilerplate/cairo-boilerplate-pdf.c
@@ -0,0 +1,279 @@
+/* -*- 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"
+
+#if CAIRO_CAN_TEST_PDF_SURFACE
+
+#include <cairo-pdf.h>
+#include <cairo-pdf-surface-private.h>
+#include <cairo-paginated-surface-private.h>
+
+#if HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+
+#if HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+
+#if ! CAIRO_HAS_RECORDING_SURFACE
+#define CAIRO_SURFACE_TYPE_RECORDING CAIRO_INTERNAL_SURFACE_TYPE_RECORDING
+#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;
+
+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,
+ 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_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_CREATE_DATE, NULL);
+ 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;
+
+ 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;
+}
+
+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_finish (ptc->target);
+ cairo_surface_destroy (ptc->target);
+ }
+ free (ptc->filename);
+ free (ptc);
+}
+
+static void
+_cairo_boilerplate_pdf_force_fallbacks (cairo_surface_t *abstract_surface,
+ double x_pixels_per_inch,
+ double y_pixels_per_inch)
+{
+ 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;
+ cairo_surface_set_fallback_resolution (&paginated->base,
+ x_pixels_per_inch,
+ y_pixels_per_inch);
+}
+
+static const cairo_boilerplate_target_t targets[] = {
+ {
+ "pdf", "pdf", ".pdf", NULL,
+ CAIRO_SURFACE_TYPE_PDF,
+ CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED, 0,
+ "cairo_pdf_surface_create",
+ _cairo_boilerplate_pdf_create_surface,
+ cairo_surface_create_similar,
+ _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, NULL, FALSE, TRUE, TRUE
+ },
+ {
+ "pdf", "pdf", ".pdf", NULL,
+ CAIRO_SURFACE_TYPE_RECORDING, CAIRO_CONTENT_COLOR, 0,
+ "cairo_pdf_surface_create",
+ _cairo_boilerplate_pdf_create_surface,
+ cairo_surface_create_similar,
+ _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, NULL, FALSE, TRUE, TRUE
+ },
+};
+CAIRO_BOILERPLATE (pdf, targets)
+
+#else
+
+CAIRO_NO_BOILERPLATE (pdf)
+
+#endif
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-01 05:39:48 +0000