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annotate libgui/graphics/gl-select.h @ 23220:092078913d54

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maint: Merge stable to default.
author John W. Eaton <jwe@octave.org>
date Wed, 22 Feb 2017 12:58:07 -0500
parents ef4d915df748 3ac9f9ecfae5
children 194eb4bd202b
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1 /*
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2
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3 Copyright (C) 2011-2017 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
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9 the Free Software Foundation; either version 3 of the License, or
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10 (at your 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
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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 (octave_gl_select_h)
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24 #define octave_gl_select_h 1
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25
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26 #include <map>
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27
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28 #include "gl-render.h"
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29 #include "oct-opengl.h"
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30
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31 namespace octave
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32 {
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33
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34 enum select_flags
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35 {
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36 select_ignore_hittest = 0x01,
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37 select_last = 0x02
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38 };
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39
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40 class opengl_selector : public opengl_renderer
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41 {
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42 public:
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43 opengl_selector (void) : size (5) { }
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44
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45 virtual ~opengl_selector (void) = default;
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46
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47 graphics_object select (const graphics_object& ax, int x, int y,
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48 int flags = 0);
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49
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50 virtual void draw (const graphics_object& go, bool toplevel = true);
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51
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52 protected:
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53 virtual void draw_text (const text::properties& props);
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54
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55 virtual void draw_image (const image::properties& props);
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56
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57 virtual void setup_opengl_transformation (const axes::properties& props);
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58
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59 virtual void init_marker (const std::string& m, double size, float width);
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60
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61 virtual Matrix render_text (const std::string& txt,
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62 double x, double y, double z,
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63 int halign, int valign, double rotation = 0.0);
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64
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65 private:
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66 void apply_pick_matrix (void);
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67
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68 void fake_text (double x, double y, double z, const Matrix& bbox,
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69 bool use_scale = true);
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71 private:
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72 // The mouse coordinate of the selection/picking point
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73 int xp, yp;
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74
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75 // The size (in pixels) of the picking window
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76 int size;
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77
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78 // The OpenGL name mapping
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79 std::map<GLuint, graphics_object> object_map;
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80 };
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81
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82 }
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83
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84 #endif