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/* gfxtools.h
Various utility functions for dealing with gfxdevices (header file).
Part of the swftools package.
Copyright (c) 2005 Matthias Kramm <kramm@quiss.org>
This program 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef __gfxtools_h__
#define __gfxtools_h__
#ifdef __cplusplus
extern "C" {
#endif
#include <stdio.h>
#include "../lib/mem.h"
#include "../lib/gfxdevice.h"
typedef struct _gfxdrawer
{
void*internal;
gfxcoord_t x,y;
void (*moveTo)(struct _gfxdrawer*d, gfxcoord_t x, gfxcoord_t y);
void (*lineTo)(struct _gfxdrawer*d, gfxcoord_t x, gfxcoord_t y);
void (*splineTo)(struct _gfxdrawer*d, gfxcoord_t sx, gfxcoord_t sy, gfxcoord_t x, gfxcoord_t y);
void (*close)(struct _gfxdrawer*d);
void* (*result)(struct _gfxdrawer*d);
} gfxdrawer_t;
typedef struct _gfxpoint
{
gfxcoord_t x,y;
} gfxpoint_t;
typedef struct _gfxfontlist
{
gfxfont_t*font;
void*user;
struct _gfxfontlist*next;
} gfxfontlist_t;
void gfxdrawer_target_gfxline(gfxdrawer_t*d);
void gfxtool_draw_dashed_line(gfxdrawer_t*d, gfxline_t*line, float*dashes, float phase);
gfxline_t* gfxtool_dash_line(gfxline_t*line, float*dashes, float phase);
void gfxline_dump(gfxline_t*l, FILE*fi, char*prefix);
gfxline_t* gfxline_append(gfxline_t*line1, gfxline_t*line2);
void gfxline_free(gfxline_t*l);
gfxline_t* gfxline_clone(gfxline_t*line);
void gfxline_optimize(gfxline_t*line);
void gfxdraw_cubicTo(gfxdrawer_t*draw, double c1x, double c1y, double c2x, double c2y, double x, double y, double quality);
void gfxdraw_conicTo(gfxdrawer_t*draw, double cx, double cy, double tox, double toy, double quality);
gfxbbox_t gfxline_getbbox(gfxline_t*line);
gfxbbox_t gfxbbox_expand_to_point(gfxbbox_t box, gfxcoord_t x, gfxcoord_t y);
void gfxbbox_intersect(gfxbbox_t*box1, gfxbbox_t*box2);
void gfxline_transform(gfxline_t*line, gfxmatrix_t*matrix);
/* tries to remove unnecessary moveTos from the gfxline */
gfxline_t* gfxline_restitch(gfxline_t*line);
/* reverses in place */
gfxline_t* gfxline_reverse(gfxline_t*line);
void gfxmatrix_dump(gfxmatrix_t*l, FILE*fi, char*prefix);
void gfxmatrix_transform(gfxmatrix_t*m, gfxcoord_t* v1, gfxcoord_t*dest);
void gfxmatrix_invert(gfxmatrix_t*src, gfxmatrix_t*dest);
void gfxmatrix_unit(gfxmatrix_t*m);
void gfxmatrix_multiply(gfxmatrix_t*m1, gfxmatrix_t*m2, gfxmatrix_t*dest);
gfxfontlist_t* gfxfontlist_create();
gfxfontlist_t*gfxfontlist_addfont(gfxfontlist_t*list, gfxfont_t*font);
gfxfontlist_t*gfxfontlist_addfont2(gfxfontlist_t*list, gfxfont_t*font, void*user);
gfxfont_t*gfxfontlist_findfont(gfxfontlist_t*list, char*id);
char gfxfontlist_hasfont(gfxfontlist_t*list, gfxfont_t*font);
void* gfxfontlist_getuserdata(gfxfontlist_t*list, const char*id);
void gfxfontlist_free(gfxfontlist_t*list, char deletefonts);
void gfximage_save_jpeg(gfximage_t*img, char*filename, int quality);
gfxbbox_t* gfxline_isrectangle(gfxline_t*_l);
gfxline_t*gfxline_makerectangle(double x1, double y1, double x2, double y2);
gfxline_t*gfxline_makecircle(double x,double y,double rx, double ry);
void gfxline_show(gfxline_t*line, FILE*fi);
typedef struct _gfxparam {
const char*key;
const char*value;
struct _gfxparam* next;
} gfxparam_t;
typedef struct _gfxparams {
gfxparam_t*params;
gfxparam_t*last;
} gfxparams_t;
gfxparams_t* gfxparams_new();
void gfxparams_store(gfxparams_t*params, const char*name, const char*value);
void gfxparams_free(gfxparams_t*params);
#ifdef __cplusplus
}
#endif
#endif //__gfxtools_h__
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