1 /* nuklear - 1.32.0 - public domain */
2 #include <stdio.h>
3 #include <stdlib.h>
4 #include <stdint.h>
5 #include <stdarg.h>
6 #include <string.h>
7 #include <math.h>
8 #include <assert.h>
9 #include <math.h>
10 #include <limits.h>
11 #include <time.h>
12
13 #include <allegro5/allegro.h>
14
15 #define WINDOW_WIDTH 1200
16 #define WINDOW_HEIGHT 800
17
18 #define NK_INCLUDE_FIXED_TYPES
19 #define NK_INCLUDE_STANDARD_IO
20 #define NK_INCLUDE_STANDARD_VARARGS
21 #define NK_INCLUDE_DEFAULT_ALLOCATOR
22 #define NK_IMPLEMENTATION
23 #define NK_ALLEGRO5_IMPLEMENTATION
24 #include "../../nuklear.h"
25 #include "nuklear_allegro5.h"
26
27
28 #define UNUSED(a) (void)a
29 #define MIN(a,b) ((a) < (b) ? (a) : (b))
30 #define MAX(a,b) ((a) < (b) ? (b) : (a))
31 #define LEN(a) (sizeof(a)/sizeof(a)[0])
32
33 /* ===============================================================
34 *
35 * EXAMPLE
36 *
37 * ===============================================================*/
38 /* This are some code examples to provide a small overview of what can be
39 * done with this library. To try out an example uncomment the include
40 * and the corresponding function. */
41 /*#include "../style.c"*/
42 /*#include "../calculator.c"*/
43 #include "../overview.c"
44 /*#include "../node_editor.c"*/
45
46 /* ===============================================================
47 *
48 * DEMO
49 *
50 * ===============================================================*/
error_callback(int e,const char * d)51 static void error_callback(int e, const char *d)
52 {printf("Error %d: %s\n", e, d);}
53
main(void)54 int main(void)
55 {
56 /* Platform */
57 ALLEGRO_DISPLAY *display = NULL;
58 ALLEGRO_EVENT_QUEUE *event_queue = NULL;
59
60 if (!al_init()) {
61 fprintf(stdout, "failed to initialize allegro5!\n");
62 exit(1);
63 }
64
65 al_install_mouse();
66 al_set_mouse_wheel_precision(150);
67 al_install_keyboard();
68
69 al_set_new_display_flags(ALLEGRO_WINDOWED|ALLEGRO_RESIZABLE|ALLEGRO_OPENGL);
70 al_set_new_display_option(ALLEGRO_SAMPLE_BUFFERS, 1, ALLEGRO_SUGGEST);
71 al_set_new_display_option(ALLEGRO_SAMPLES, 8, ALLEGRO_SUGGEST);
72 display = al_create_display(WINDOW_WIDTH, WINDOW_HEIGHT);
73 if (!display) {
74 fprintf(stdout, "failed to create display!\n");
75 exit(1);
76 }
77
78 event_queue = al_create_event_queue();
79 if (!event_queue) {
80 fprintf(stdout, "failed to create event_queue!\n");
81 al_destroy_display(display);
82 exit(1);
83 }
84
85 al_register_event_source(event_queue, al_get_display_event_source(display));
86 al_register_event_source(event_queue, al_get_mouse_event_source());
87 al_register_event_source(event_queue, al_get_keyboard_event_source());
88
89 NkAllegro5Font *font;
90 font = nk_allegro5_font_create_from_file("../../../extra_font/Roboto-Regular.ttf", 12, 0);
91 struct nk_context *ctx;
92
93 ctx = nk_allegro5_init(font, display, WINDOW_WIDTH, WINDOW_HEIGHT);
94
95 /* style.c */
96 /*set_style(ctx, THEME_WHITE);*/
97 /*set_style(ctx, THEME_RED);*/
98 /*set_style(ctx, THEME_BLUE);*/
99 /*set_style(ctx, THEME_DARK);*/
100
101 while(1)
102 {
103 ALLEGRO_EVENT ev;
104 ALLEGRO_TIMEOUT timeout;
105 al_init_timeout(&timeout, 0.06);
106
107 bool get_event = al_wait_for_event_until(event_queue, &ev, &timeout);
108
109 if (get_event && ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE) {
110 break;
111 }
112
113 /* Very Important: Always do nk_input_begin / nk_input_end even if
114 there are no events, otherwise internal nuklear state gets messed up */
115 nk_input_begin(ctx);
116 if (get_event) {
117 while (get_event) {
118 nk_allegro5_handle_event(&ev);
119 get_event = al_get_next_event(event_queue, &ev);
120 }
121 }
122 nk_input_end(ctx);
123
124 /* GUI */
125 if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
126 NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
127 NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
128 {
129 enum {EASY, HARD};
130 static int op = EASY;
131 static int property = 20;
132
133 nk_layout_row_static(ctx, 30, 80, 1);
134 if (nk_button_label(ctx, "button"))
135 fprintf(stdout, "button pressed\n");
136 nk_layout_row_dynamic(ctx, 30, 2);
137 if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
138 if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
139 nk_layout_row_dynamic(ctx, 22, 1);
140 nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
141 }
142 nk_end(ctx);
143
144 /* -------------- EXAMPLES ---------------- */
145 /*calculator(ctx);*/
146 overview(ctx);
147 /*node_editor(ctx);*/
148 /* ----------------------------------------- */
149
150 /* Draw */
151 al_clear_to_color(al_map_rgb(19, 43, 81));
152 /* IMPORTANT: `nk_allegro5_render` changes the target backbuffer
153 to the display set at initialization and does not restore it.
154 Change it if you want to draw somewhere else. */
155 nk_allegro5_render();
156 al_flip_display();
157 }
158
159 nk_allegro5_font_del(font);
160 nk_allegro5_shutdown();
161 al_destroy_display(display);
162 al_destroy_event_queue(event_queue);
163 return 0;
164 }
165
166