/* 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 __cplusplusextern "C" {#endiftypedef 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 */