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1 /*
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2 A simple cross-platform OpenGL GUI toolkit
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3 Copyright (C) 2012 John Tsiombikas <nuclear@member.fsf.org>
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU Lesser General Public License as published by
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7 the Free Software Foundation, either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18 #ifndef GLTIKI_H_
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19 #define GLTIKI_H_
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20
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21 typedef struct gltk_widget gltk_widget;
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22 typedef struct gltk_item gltk_item;
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23 typedef struct gltk_pixmap gltk_pixmap;
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24
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25 typedef void (*gltk_callback)(gltk_widget *w, void *cls);
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26
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27 #ifdef __cplusplus
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28 extern "C" {
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29 #endif
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30
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31 int gltk_init(void);
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32 void gltk_cleanup(void);
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33
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34 gltk_widget *gltk_create_widget(void);
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35 void gltk_free_widget(gltk_widget *w);
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36
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37 void gltk_move(gltk_widget *w, float x, float y);
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38 void gltk_resize(gltk_widget *w, float xsz, float ysz);
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39
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40 /* label */
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41 gltk_widget *gltk_label(const char *text);
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42
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43 /* button */
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44 gltk_widget *gltk_button(const char *text);
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45 gltk_widget *gltk_button_cb(const char *text, gltk_callback cb, void *cls);
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46
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47 /* checkbox */
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48 gltk_widget *gltk_checkbox(const char *text, int checked);
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49 gltk_widget *gltk_checkbox_cb(const char *text, int checked, gltk_callback cb, void *cls);
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50 gltk_widget *gltk_checkbox_link(const char *text, int checked, int *link);
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51
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52 void gltk_set_checkbox_state(gltk_widget *w, int val);
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53 int gltk_get_checkbox_state(gltk_widget *w);
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54
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55 /* continuous slider */
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56 gltk_widget *gltk_slider(float val, float min, float max);
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57 gltk_widget *gltk_slider_cb(float val, float min, float max, gltk_callback cb, void *cls);
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58 gltk_widget *gltk_slider_link(float val, float min, float max, float *link);
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59
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60 void gltk_set_slider_range(gltk_widget *w, float min, float max);
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61 void gltk_set_slider_value(gltk_widget *w, float val);
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62 float gltk_get_slider_value(gltk_widget *w);
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63
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64 /* discrete int slider */
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65 gltk_widget *gltk_int_slider(int val, int min, int max);
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66 gltk_widget *gltk_int_slider_cb(int val, int min, int max, gltk_callback cb, void *cls);
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67 gltk_widget *gltk_int_slider_link(int val, int min, int max, int *link);
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68
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69 void gltk_set_int_slider_range(gltk_widget *w, int min, int max);
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70 void gltk_set_int_slider_value(gltk_widget *w, int val);
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71 int gltk_get_int_slider_value(gltk_widget *w);
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72
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73 /* listbox */
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74 gltk_widget *gltk_listbox(gltk_item *items, int sel, int visrows);
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75 gltk_widget *gltk_listbox_cb(gltk_item *items, int sel, int visrows, gltk_callback cb, void *cls);
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76 gltk_widget *gltk_listbox_link(gltk_item *items, int sel, int visrows, int *link);
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77
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78 gltk_item *gltk_create_item(const char *text, gltk_pixmap *img);
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79 void gltk_free_item(gltk_item *item);
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80
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81 void gltk_set_listbox_selection(gltk_widget *listbox, int sel);
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82 int gltk_get_listbox_selection(gltk_widget *listbox);
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83 void gltk_add_listbox_item(gltk_widget *listbox, gltk_item *item);
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84 void gltk_remove_listbox_item(gltk_widget *listbox, gltk_item *item);
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85 gltk_item *gltk_get_listbox_item(gltk_widget *listbox, int idx);
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86
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87 /* events */
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88 void gltk_event_button(int bn, int state, float x, float y);
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89 void gltk_event_motion(float x, float y);
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90 void gltk_event_keyboard(int key, int state);
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91
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92 /* drawing */
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93 void gltk_draw(gltk_widget *wlist);
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94
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95 /* GUI file format */
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96 gltk_widget *gltk_load(const char *fname);
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97 int gltk_save(const char *fname, gltk_widget *wlist);
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98
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99 #ifdef __cplusplus
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100 }
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101 #endif
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102
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103 #endif /* GLTIKI_H_ */
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