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/*
* pdfstorycode.c
*
* Copyright © 2019 Thomas White <taw@bitwiz.org.uk>
*
* This file is part of Colloquium.
*
* Colloquium is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <glib.h>
#include <glib/gstdio.h>
#include <gio/gio.h>
#include <cairo.h>
#include <cairo-pdf.h>
#include <pango/pangocairo.h>
#include "storycode.h"
#include "presentation.h"
#include "slide.h"
#include "imagestore.h"
#include "slide_render_cairo.h"
#include <libintl.h>
#define _(x) gettext(x)
static int render_slides_to_pdf(Presentation *p, ImageStore *is, const char *filename)
{
double w = 2048.0;
cairo_surface_t *surf;
cairo_t *cr;
int i;
PangoContext *pc;
struct slide_pos sel;
surf = cairo_pdf_surface_create(filename, w, w);
if ( cairo_surface_status(surf) != CAIRO_STATUS_SUCCESS ) {
fprintf(stderr, _("Couldn't create Cairo surface\n"));
return 1;
}
cr = cairo_create(surf);
pc = pango_cairo_create_context(cr);
sel.para = 0; sel.pos = 0; sel.trail = 0;
for ( i=0; i<presentation_get_num_slides(p); i++ )
{
Slide *s;
double log_w, log_h;
s = presentation_get_slide_by_number(p, i);
slide_get_logical_size(s, presentation_get_stylesheet(p),
&log_w, &log_h);
cairo_pdf_surface_set_size(surf, w, w*(log_h/log_w));
cairo_save(cr);
cairo_scale(cr, w/log_w, w/log_w);
slide_render_cairo(s, cr, is, presentation_get_stylesheet(p),
i, pango_language_get_default(), pc,
NULL, sel, sel);
cairo_show_page(cr);
cairo_restore(cr);
}
g_object_unref(pc);
cairo_surface_finish(surf);
cairo_destroy(cr);
return 0;
}
int main(int argc, char *argv[])
{
GFile *file;
GBytes *bytes;
const char *text;
size_t len;
Presentation *p;
ImageStore *is;
file = g_file_new_for_commandline_arg(argv[1]);
bytes = g_file_load_bytes(file, NULL, NULL, NULL);
text = g_bytes_get_data(bytes, &len);
p = storycode_parse_presentation(text);
g_bytes_unref(bytes);
is = imagestore_new(".");
imagestore_set_parent(is, g_file_get_parent(file));
/* Render each slide to PDF */
render_slides_to_pdf(p, is, "slides.pdf");
return 0;
}
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