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annotate src/txt-eng-ft.h @ 16088:b29b10fbb744 stable release-3-6-4

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Version 3.6.4 released. * configure.ac (AC_INIT): Version is now 3.6.4. (OCTAVE_RELEASE_DATE): Now 2013-02-21.
author John W. Eaton <jwe@octave.org>
date Thu, 21 Feb 2013 15:17:54 -0500
parents 72c96de7a403
children
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1 /*
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2
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3 Copyright (C) 2009-2012 Michael Goffioul
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if ! defined (txt_eng_ft_h)
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24 #define txt_eng_ft_h 1
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25
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26 #if HAVE_FREETYPE
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27
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28 #include <vector>
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29
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30 #include <ft2build.h>
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31 #include FT_FREETYPE_H
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32
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33 #include <dMatrix.h>
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34 #include <uint8NDArray.h>
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35 #include "txt-eng.h"
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36
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37 class
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38 OCTINTERP_API
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39 ft_render : public text_processor
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40 {
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41 public:
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42 enum {
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43 MODE_BBOX = 0,
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44 MODE_RENDER = 1
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45 };
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46
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47 enum {
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48 ROTATION_0 = 0,
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49 ROTATION_90 = 1,
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50 ROTATION_180 = 2,
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51 ROTATION_270 = 3
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52 };
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53
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54 public:
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55 ft_render (void);
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56
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57 ~ft_render (void);
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58
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59 void visit (text_element_string& e);
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60
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61 void reset (void);
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62
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63 uint8NDArray get_pixels (void) const { return pixels; }
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64
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65 Matrix get_boundingbox (void) const { return bbox; }
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66
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67 uint8NDArray render (text_element* elt, Matrix& box,
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68 int rotation = ROTATION_0);
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69
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70 Matrix get_extent (text_element *elt, double rotation = 0.0);
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71 Matrix get_extent (const std::string& txt, double rotation = 0.0);
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72
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73 void set_font (const std::string& name, const std::string& weight,
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74 const std::string& angle, double size);
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75
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76 void set_color (Matrix c);
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77
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78 void set_mode (int m);
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79
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80 void text_to_pixels (const std::string& txt,
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81 uint8NDArray& pixels_, Matrix& bbox,
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82 int halign, int valign, double rotation);
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83
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84 private:
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85 int rotation_to_mode (double rotation) const;
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86
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87 // No copying!
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88
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89 ft_render (const ft_render&);
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90
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91 ft_render& operator = (const ft_render&);
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92
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93 private:
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94 FT_Face face;
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95 Matrix bbox;
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96 uint8NDArray pixels;
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97 int xoffset;
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98 int yoffset;
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99 int multiline_halign;
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100 std::vector<int> multiline_align_xoffsets;
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101 int mode;
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102 uint8_t red, green, blue;
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103 };
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104
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105 #endif // HAVE_FREETYPE
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106
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107 #endif