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/* libwmf (<libwmf/canvas.h>): library for wmf conversion
Copyright (C) 2000 - various; see CREDITS, ChangeLog, and sources
The libwmf Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The libwmf Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the libwmf Library; see the file COPYING. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Interface Programmable des Applications ??
*/
#ifndef LIBWMF_CANVAS_H
#define LIBWMF_CANVAS_H
#include <libwmf/ipa.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef void * wmfCanvas;
/**
* Make a canvas for drawing to, to build a metafile in memory.
*/
extern wmfCanvas * wmf_canvas (wmfAPI*,unsigned short,unsigned short,unsigned short);
/**
* Final canvas call: finish off the metafile, free canvas etc., and return the metafile buffer.
*/
extern unsigned char * wmf_canvas_done (wmfAPI*,wmfCanvas*,unsigned char**,unsigned long*);
/**
* Set current pen (stroke) attributes.
*/
extern int wmf_canvas_set_pen (wmfAPI*,wmfCanvas*,
unsigned short,unsigned short,unsigned short,
unsigned short,wmfRGB);
/**
* Set current brush (fill) attributes.
*/
extern int wmf_canvas_set_brush (wmfAPI*,wmfCanvas*,unsigned short,unsigned short,wmfRGB);
/**
* Change current font.
*/
extern int wmf_canvas_set_font (wmfAPI*,wmfCanvas*,const char*,
unsigned short,unsigned short,unsigned short,unsigned short,
unsigned short,unsigned short,unsigned short,unsigned short);
/**
* Set polygon fill mode.
*/
extern int wmf_canvas_set_polyfill (wmfAPI*,wmfCanvas*,unsigned short);
/**
* Set background mode.
*/
extern int wmf_canvas_set_background (wmfAPI*,wmfCanvas*,unsigned short);
/**
* Set background color.
*/
extern int wmf_canvas_set_bgcolor (wmfAPI*,wmfCanvas*,wmfRGB);
/**
* Set text color.
*/
extern int wmf_canvas_set_textcolor (wmfAPI*,wmfCanvas*,wmfRGB);
/**
* Draw a line.
*/
extern int wmf_canvas_line (wmfAPI*,wmfCanvas*,
unsigned short,unsigned short,
unsigned short,unsigned short);
/**
* Draw a rounded rectangle.
*/
extern int wmf_canvas_roundrect (wmfAPI*,wmfCanvas*,
unsigned short,unsigned short,
unsigned short,unsigned short,
unsigned short,unsigned short);
/**
* Draw a rectangle.
*/
extern int wmf_canvas_rect (wmfAPI*,wmfCanvas*,
unsigned short,unsigned short,
unsigned short,unsigned short);
/**
* Draw an ellipse in the given bounding box.
*/
extern int wmf_canvas_ellipse (wmfAPI*,wmfCanvas*,
unsigned short,unsigned short,
unsigned short,unsigned short);
/**
* \b wmf_canvas_arc_t is the (enumeration) type used to distinguish arc type.
*/
typedef enum _wmf_canvas_arc_t
{
wmf_CA_open = 0, /**< drawn arc segment (no fill) */
wmf_CA_chord, /**< start & end of arc joined together */
wmf_CA_pie /**< start & end of arc joined to centre */
} wmf_canvas_arc_t;
/**
* Draw an elliptic arc in the given bounding box.
*/
extern int wmf_canvas_arc (wmfAPI*,wmfCanvas*,
unsigned short,unsigned short,
unsigned short,unsigned short,
unsigned short,unsigned short,
unsigned short,unsigned short,wmf_canvas_arc_t);
/**
* Draw a line connecting a sequence of points.
*/
extern int wmf_canvas_polyline (wmfAPI*,wmfCanvas*,
unsigned short*,unsigned short*,unsigned short);
/**
* Draw a polygon.
*/
extern int wmf_canvas_polygon (wmfAPI*,wmfCanvas*,
unsigned short*,unsigned short*,unsigned short);
/**
* Draw a set of polygons.
*/
extern int wmf_canvas_polygons (wmfAPI*,wmfCanvas*,unsigned short,
unsigned short**,unsigned short**,unsigned short*);
/**
* Draw text.
*/
extern int wmf_canvas_text (wmfAPI*,wmfCanvas*,unsigned short,unsigned short,const char*);
/**
* Place a bitmap.
*/
extern int wmf_canvas_bitmap (wmfAPI*,wmfCanvas*,unsigned short,unsigned short,
unsigned short,unsigned short,const unsigned char*,unsigned long);
#ifdef __cplusplus
}
#endif
#endif /* ! LIBWMF_CANVAS_H */
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