/*
 * presentation.h
 *
 * Copyright © 2013-2018 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/>.
 *
 */

#ifndef PRESENTATION_H
#define PRESENTATION_H

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

struct presentation;

#include "imagestore.h"
#include "sc_parse.h"
#include "slideshow.h"
#include "narrative_window.h"
#include "slide_window.h"
#include "stylesheet.h"

struct menu_pl;

struct presentation
{
	GFile            *file;
	GFile            *stylesheet_from;
	int               completely_empty;
	int               saved;
	PangoLanguage    *lang;

	ImageStore       *is;

	NarrativeWindow  *narrative_window;

	struct pr_clock  *clock;

	/* This is the "native" size of the slide.  It only exists to give
	 * font size some meaning in the context of a somewhat arbitrary DPI */
	double            slide_width;
	double            slide_height;

	SCBlock          *scblocks;
	Stylesheet       *stylesheet;
};


extern struct presentation *new_presentation(const char *imagestore);
extern void free_presentation(struct presentation *p);

extern char *get_titlebar_string(struct presentation *p);

extern int slide_number(struct presentation *p, SCBlock *sl);
extern int num_slides(struct presentation *p);
extern SCBlock *first_slide(struct presentation *p);
extern SCBlock *last_slide(struct presentation *p);
extern SCBlock *next_slide(struct presentation *p, SCBlock *sl);
extern SCBlock *prev_slide(struct presentation *p, SCBlock *sl);

extern int load_presentation(struct presentation *p, GFile *file);
extern int save_presentation(struct presentation *p, GFile *file, GFile *ssfile);

#define UNUSED __attribute__((unused))


#endif	/* PRESENTATION_H */