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