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annotate libinterp/corefcn/base-text-renderer.h @ 25643:afb5288a25ad

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move text engine classes inside octave namespace * text-engine.cc: Rename from txt-eng.cc. * text-engine.h: Rename from txt-eng.h. Change all uses. * txt-eng.h: Provide for backward-compatibility. * libinterp/corefcn/module.mk: Update. * text-engine.cc, text-engine.h: Move classes inside octave namespace. Change all uses.
author John W. Eaton <jwe@octave.org>
date Thu, 19 Jul 2018 13:28:51 -0400
parents 6652d3823428
children 00f796120a6d
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1 /*
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2
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3 Copyright (C) 2016-2018 John W. Eaton
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4 Copyright (C) 2009-2018 Michael Goffioul
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5
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6 This file is part of Octave.
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7
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8 Octave is free software: you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by
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10 the Free Software Foundation, either version 3 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 Octave is distributed in the hope that it will be useful, but
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14 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 Octave; see the file COPYING. If not, see
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20 <https://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #if ! defined (octave_base_text_renderer_h)
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25 #define octave_base_text_renderer_h 1
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26
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27 #include "octave-config.h"
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28
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29 #include <list>
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30 #include <string>
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31
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32 #include "dMatrix.h"
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33 #include "uint8NDArray.h"
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34
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35 #include "text-engine.h"
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36 #include "text-renderer.h"
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37
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38 namespace octave
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39 {
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40 class
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41 base_text_renderer : public text_processor
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42 {
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43 public:
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44
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45 base_text_renderer (void) : text_processor () { }
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46
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47 // No copying!
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48
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49 base_text_renderer (const base_text_renderer&) = delete;
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50
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51 base_text_renderer& operator = (const base_text_renderer&) = delete;
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52
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53 virtual ~base_text_renderer (void) = default;
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54
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55 virtual Matrix
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56 get_extent (text_element *elt, double rotation) = 0;
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57
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58 virtual Matrix
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59 get_extent (const std::string& txt, double rotation,
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60 const caseless_str& interpreter) = 0;
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61
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62 virtual void
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63 set_font (const std::string& name, const std::string& weight,
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64 const std::string& angle, double size) = 0;
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65
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66 virtual void set_color (const Matrix& c) = 0;
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67
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68 virtual void
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69 text_to_pixels (const std::string& txt, uint8NDArray& pxls,
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70 Matrix& bbox, int halign, int valign, double rotation,
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71 const caseless_str& interpreter,
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72 bool handle_rotation) = 0;
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73
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74 virtual void
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75 text_to_strlist (const std::string& txt,
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76 std::list<text_renderer::string>& lst,
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77 Matrix& box, int halign, int valign, double rotation,
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78 const caseless_str& interpreter = "tex") = 0;
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79 };
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80 }
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81
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82 #endif