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path: root/support/dktools/hbimgdim.c
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/*
Copyright (C) 2013-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: hbimgdim.ctr
*/

/**	@file hbimgdim.c The hbimgdim module.
*/


#line 69 "hbimgdim.ctr"


#include "dk3all.h"
#include "dk3bif.h"
#include "htmlbook.h"





#line 78 "hbimgdim.ctr"



/**	File name suffixes used by SVG files.
*/
static const dkChar * const svg_suffixes[] = {
  dkT(".svg"), dkT(".svgz"), NULL
};



static
int
is_svg_file(dkChar const *fn)
{
  const dkChar	*psuff	= NULL;
  int		 back = 0;
  int		 ind;
  

#line 97 "hbimgdim.ctr"
  if (NULL != fn) {
    psuff = dk3str_get_suffix(fn);
    if (NULL != psuff) {
      ind = dk3str_array_index(svg_suffixes, psuff, 0);
      if (-1 < ind) {
        back = 1;
      }
    }
  }
  

#line 107 "hbimgdim.ctr"
  return back;
}



int
hbimgdim_compare(void const *l, void const *r, int cr)
{
  int		 back = 0;
  hb_img_dim_t	*pl;
  hb_img_dim_t	*pr;
  

#line 119 "hbimgdim.ctr"
  if(l) {
    if(r) {
      pl = (hb_img_dim_t *)l;
      switch(cr) {
        case 1: {
	  back = dk3str_fncmp(pl->fn, (dkChar const *)r);
	} break;
	default: {
	  pr = (hb_img_dim_t *)r;
	  back = dk3str_fncmp(pl->fn, pr->fn);
	} break;
      }
      if(-1 > back) { back = -1; }
      if( 1 < back) { back =  1; }
    } else back = 1;
  } else {
    if(r) back = -1;
  } 

#line 137 "hbimgdim.ctr"
  return back;
}



void
hbimgdim_delete(hb_img_dim_t *ptr)
{
  

#line 146 "hbimgdim.ctr"
  if(ptr) {
    dk3_release(ptr->fn);
    ptr->w = 0UL;
    ptr->h = 0UL;
    dk3_delete(ptr);
  } 

#line 152 "hbimgdim.ctr"
}



hb_img_dim_t	*
hbimgdim_new(dkChar const *fn, unsigned long w, unsigned long h, dk3_app_t *app)
{
  hb_img_dim_t		*back = NULL;
  

#line 161 "hbimgdim.ctr"
  back = dk3_new_app(hb_img_dim_t,1,app);
  if(back) {
    back->w = w;
    back->h = h;
    back->fn = dk3str_dup_app(fn,app);
    if(!(back->fn)) {
      hbimgdim_delete(back);
      back = NULL;
    }
  } 

#line 171 "hbimgdim.ctr"
  return back;
}



int
hbimgdim_find(
  hb_job_t	*job,
  dkChar const	*fn,
  unsigned long	*w,
  unsigned long	*h,
  int		 save
)
{
  hb_img_dim_t		*idptr;		/* Image dimension found or new */
  dk3_bif_t		*bp;		/* BIF object for graphics file */
  unsigned long		 xw;		/* Width read from file */
  unsigned long		 xh;		/* Height read from file */
  int			 back = 0;
  

#line 191 "hbimgdim.ctr"
  if((job) && (fn) && (w) && (h)) {
    idptr = (hb_img_dim_t *)dk3sto_it_find_like(job->i_imgdim, fn, 1);
    if(idptr) {
      *w = idptr->w;
      *h = idptr->h;
      back = 1;
    } else {
      if (0 == is_svg_file(fn)) {
        bp = dk3bif_open_filename_app(fn, DK3_BIF_IMAGE_TYPE_UNKNOWN, job->app);
        if(bp) {
          xw = dk3bif_get_width(bp);
	  xh = dk3bif_get_height(bp);
          dk3bif_close(bp);
	  if((xw) && (xh)) {
	    *w = xw;
	    *h = xh;
	    back = 1;
	    if(save) {
	      idptr = hbimgdim_new(fn, xw, xh, job->app);
	      if(idptr) {
	        if(!(dk3sto_add(job->s_imgdim, idptr))) {
	          hbimgdim_delete(idptr);
	        }
	      }
	    }
	  }
        }
      } else {
        /* TODO: Find SVG width and height */
      }
    }
  } 

#line 223 "hbimgdim.ctr"
  return back;
}