1 | /* exportfilter.h |
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2 | * Export to CAD-like formats (DXF, Sketch, 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 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.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) = 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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