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-/* $Header$
-
- This is dvipdfm, a DVI to PDF translator.
- Copyright (C) 1998, 1999 by Mark A. Wicks
-
- 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
-
- The author may be contacted via the e-mail address
-
- mwicks@kettering.edu
-*/
-
-
-#ifndef PDFSPECIAL_H
-
-#define PDFSPECIAL_H
-#include "numbers.h"
-#include "pdfobj.h"
-
-struct xform_info
-{
- double width;
- double height;
- double depth;
- double scale;
- double xscale;
- double yscale;
- double rotate;
- /* If the user enters a "bounding box", user_bbox is nonzero */
- unsigned char user_bbox;
- /* If the user enters a "bounding box", the use specified
- coordinates follow */
- double u_llx, u_lly, u_urx, u_ury;
- /* The following lines are for compatibility with dvips specials.
- The method is a bit clumsy, and requires a lengthy explanation,
- because dvipdfm uses form xobjects to embed all image types.
-
- Because the image is a form xobject, the image must be clipped
- somewhere. Form xobjects always crop to their bounding box.
- However, this is not the dvips behavior. If the user specifies
- "clip", PS and PDF images will be clipped to the user specified
- bounding box; in other words, the user specified bounding box and
- the clipping bounding box are one and the same. Otherwise,
- dvipdfm will clip the image at the bounding box contained in the
- image file. (The eps header in the case of Metapost images or
- the media box or crop box in the case of PDF images.) In the
- case that the user bounding box and clip bounding box are
- different, the image is scaled to match any user specified
- dimensions.
-
- Processing of all image inclusion specials are handled by common
- code which fills in the user bounding box, if any, as well as the
- width, height, depth, xscale, yscale, scale, and rotate fields.
- That common routine calls a routine specific to each image type.
- The routines specific to each file type MUST fill in the c_llx
- through c_ury fields, because the source of this information is
- image type dependent. They are also responsible for calling
- pdf_scale_image(), which checks the information for consistency
- and recalculates ` the scaling required to achieve the desired
- effect. */
- unsigned char clip;
- double c_llx, c_lly, c_urx, c_ury;
-};
-
-extern int pdf_parse_special(char *buffer, UNSIGNED_QUAD size, double
- x_user, double y_user);
-extern void pdf_finish_specials(void);
-extern pdf_obj *get_reference(char **start, char *end);
-extern struct xform_info *new_xform_info (void);
-extern void release_xform_info (struct xform_info *p);
-extern int validate_image_xform_info (struct xform_info *p);
-extern void add_xform_matrix (double xoff, double yoff, double xscale, double
- yscale, double rotate);
-
-extern void pdf_special_ignore_colors(void);
-
-extern double parse_one_unit (char **start, char *end);
-extern void pdf_scale_image (struct xform_info *p);
-extern pdf_obj *embed_image (char *filename, struct xform_info *p,
- double x_user, double y_user, char
- *objname);
-extern void pdf_finish_specials(void);
-extern void pdf_special_set_grow (double g);
-extern double pdf_special_tell_grow (void);
-
-#ifndef M_PI
- #define M_PI (4.0*atan(1.0))
-#endif /* M_PI */
-
-#endif /* PDFSPECIAL_H */