src/exportfilter.h

   1 /* exportfilter.h
   2  * Export to CAD-like formats (DXF, Skencil, SVG, EPS, HPGL) and also Compass
   3  * PLT.
   4  */
   5
   6 /* Copyright (C) 2005,2012,2013,2014,2015,2016 Olly Betts
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  21  */
  22
  23 #ifndef SURVEX_EXPORTFILTER_H
  24 #define SURVEX_EXPORTFILTER_H
  25
  26 #include <stdio.h>
  27 #include "wx.h"
  28
  29 #include "img_hosted.h"
  30
  31 class ExportFilter {
  32   protected:
  33     FILE * fh;
  34   public:
  35     ExportFilter() : fh(NULL) { }
  36     // FIXME: deal with errors closing file... (safe_fclose?)
  37     virtual ~ExportFilter() { if (fh) fclose(fh); }
  38     virtual const int * passes() const;
  39     virtual bool fopen(const wxString& fnm_out) {
  40         fh = wxFopen(fnm_out.fn_str(), wxT("wb"));
  41         return (fh != NULL);
  42     }
  43     virtual void header(const char *, const char *, time_t,
  44                         double, double, double,
  45                         double, double, double) { }
  46     virtual void start_pass(int) { }
  47     virtual void line(const img_point *, const img_point *, unsigned, bool) { }
  48     virtual void label(const img_point *, const char *, bool, int) = 0;
  49     virtual void cross(const img_point *, bool) { }
  50     virtual void xsect(const img_point *, double, double, double) { }
  51     virtual void wall(const img_point *, double, double) { }
  52     virtual void passage(const img_point *, double, double, double) { }
  53     virtual void tube_end() { }
  54     virtual void footer() { }
  55 };
  56
  57 #endif