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/*
* sc_interp.h
*
* Copyright © 2014-2018 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 SC_INTERP_H
#define SC_INTERP_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pango/pangocairo.h>
struct frame;
#define SCCONST_SLIDENUMBER (0)
#define NUM_SC_CONSTANTS (1)
struct presentation;
typedef struct _scinterp SCInterpreter;
typedef struct _sccallbacklist SCCallbackList;
typedef int (*SCCallbackBoxFunc)(SCInterpreter *scin, SCBlock *bl,
double *w, double *h, void **, void *);
typedef cairo_surface_t *(*SCCallbackDrawFunc)(int w, int h, void *, void *);
typedef int (*SCCallbackClickFunc)(double x, double y, void *, void *);
#include "frame.h"
#include "imagestore.h"
#include "stylesheet.h"
extern SCInterpreter *sc_interp_new(PangoContext *pc, PangoLanguage *lang,
ImageStore *is, struct frame *top);
extern void sc_interp_destroy(SCInterpreter *scin);
extern void sc_interp_save(SCInterpreter *scin);
extern void sc_interp_restore(SCInterpreter *scin);
extern int sc_interp_add_block(SCInterpreter *scin, SCBlock *bl, Stylesheet *ss);
extern void sc_interp_set_constant(SCInterpreter *scin, unsigned int constant,
const char *val);
/* Callback lists */
extern SCCallbackList *sc_callback_list_new();
extern void sc_callback_list_free(SCCallbackList *cbl);
extern void sc_callback_list_add_callback(SCCallbackList *cbl, const char *name,
SCCallbackBoxFunc box_func,
SCCallbackDrawFunc draw_func,
SCCallbackClickFunc click_func,
void *vp);
extern void sc_interp_set_callbacks(SCInterpreter *scin, SCCallbackList *cbl);
/* Get the current state of the interpreter */
extern struct frame *sc_interp_get_frame(SCInterpreter *scin);
extern PangoFont *sc_interp_get_font(SCInterpreter *scin);
extern PangoFontDescription *sc_interp_get_fontdesc(SCInterpreter *scin);
extern double *sc_interp_get_fgcol(SCInterpreter *scin);
extern void update_geom(struct frame *fr);
#endif /* SC_INTERP_H */
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