1 //========================================================================
2 // Window properties test
3 // Copyright (c) Camilla Löwy <elmindreda@glfw.org>
4 //
5 // This software is provided 'as-is', without any express or implied
6 // warranty. In no event will the authors be held liable for any damages
7 // arising from the use of this software.
8 //
9 // Permission is granted to anyone to use this software for any purpose,
10 // including commercial applications, and to alter it and redistribute it
11 // freely, subject to the following restrictions:
12 //
13 // 1. The origin of this software must not be misrepresented; you must not
14 // claim that you wrote the original software. If you use this software
15 // in a product, an acknowledgment in the product documentation would
16 // be appreciated but is not required.
17 //
18 // 2. Altered source versions must be plainly marked as such, and must not
19 // be misrepresented as being the original software.
20 //
21 // 3. This notice may not be removed or altered from any source
22 // distribution.
23 //
24 //========================================================================
25
26 #define GLAD_GL_IMPLEMENTATION
27 #include <glad/gl.h>
28 #define GLFW_INCLUDE_NONE
29 #include <GLFW/glfw3.h>
30
31 #include <stdarg.h>
32
33 #define NK_IMPLEMENTATION
34 #define NK_INCLUDE_FIXED_TYPES
35 #define NK_INCLUDE_FONT_BAKING
36 #define NK_INCLUDE_DEFAULT_FONT
37 #define NK_INCLUDE_DEFAULT_ALLOCATOR
38 #define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
39 #define NK_INCLUDE_STANDARD_VARARGS
40 #define NK_BUTTON_TRIGGER_ON_RELEASE
41 #include <nuklear.h>
42
43 #define NK_GLFW_GL2_IMPLEMENTATION
44 #include <nuklear_glfw_gl2.h>
45
46 #include <stdbool.h>
47 #include <stdio.h>
48 #include <stdlib.h>
49 #include <limits.h>
50
main(int argc,char ** argv)51 int main(int argc, char** argv)
52 {
53 int windowed_x, windowed_y, windowed_width, windowed_height;
54 int last_xpos = INT_MIN, last_ypos = INT_MIN;
55 int last_width = INT_MIN, last_height = INT_MIN;
56 int limit_aspect_ratio = false, aspect_numer = 1, aspect_denom = 1;
57 int limit_min_size = false, min_width = 400, min_height = 400;
58 int limit_max_size = false, max_width = 400, max_height = 400;
59 char width_buffer[12] = "", height_buffer[12] = "";
60 char xpos_buffer[12] = "", ypos_buffer[12] = "";
61 char numer_buffer[12] = "", denom_buffer[12] = "";
62 char min_width_buffer[12] = "", min_height_buffer[12] = "";
63 char max_width_buffer[12] = "", max_height_buffer[12] = "";
64 int may_close = true;
65 char window_title[64] = "";
66
67 if (!glfwInit())
68 exit(EXIT_FAILURE);
69
70 glfwWindowHint(GLFW_SCALE_TO_MONITOR, GLFW_TRUE);
71 glfwWindowHint(GLFW_WIN32_KEYBOARD_MENU, GLFW_TRUE);
72 glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
73 glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1);
74
75 GLFWwindow* window = glfwCreateWindow(600, 660, "Window Features", NULL, NULL);
76 if (!window)
77 {
78 glfwTerminate();
79 exit(EXIT_FAILURE);
80 }
81 glfwSetInputMode(window, GLFW_UNLIMITED_MOUSE_BUTTONS, GLFW_TRUE);
82
83 glfwMakeContextCurrent(window);
84 gladLoadGL(glfwGetProcAddress);
85 glfwSwapInterval(0);
86
87 bool position_supported = true;
88
89 glfwGetError(NULL);
90 glfwGetWindowPos(window, &last_xpos, &last_ypos);
91 sprintf(xpos_buffer, "%i", last_xpos);
92 sprintf(ypos_buffer, "%i", last_ypos);
93 if (glfwGetError(NULL) == GLFW_FEATURE_UNAVAILABLE)
94 position_supported = false;
95
96 glfwGetWindowSize(window, &last_width, &last_height);
97 sprintf(width_buffer, "%i", last_width);
98 sprintf(height_buffer, "%i", last_height);
99
100 sprintf(numer_buffer, "%i", aspect_numer);
101 sprintf(denom_buffer, "%i", aspect_denom);
102
103 sprintf(min_width_buffer, "%i", min_width);
104 sprintf(min_height_buffer, "%i", min_height);
105 sprintf(max_width_buffer, "%i", max_width);
106 sprintf(max_height_buffer, "%i", max_height);
107
108 struct nk_context* nk = nk_glfw3_init(window, NK_GLFW3_INSTALL_CALLBACKS);
109
110 struct nk_font_atlas* atlas;
111 nk_glfw3_font_stash_begin(&atlas);
112 nk_glfw3_font_stash_end();
113
114 strncpy(window_title, glfwGetWindowTitle(window), sizeof(window_title));
115
116 while (!(may_close && glfwWindowShouldClose(window)))
117 {
118 int width, height;
119
120 glfwGetWindowSize(window, &width, &height);
121
122 struct nk_rect area = nk_rect(0.f, 0.f, (float) width, (float) height);
123 nk_window_set_bounds(nk, "main", area);
124
125 nk_glfw3_new_frame();
126 if (nk_begin(nk, "main", area, 0))
127 {
128 nk_layout_row_dynamic(nk, 30, 4);
129
130 if (glfwGetWindowMonitor(window))
131 {
132 if (nk_button_label(nk, "Make Windowed"))
133 {
134 glfwSetWindowMonitor(window, NULL,
135 windowed_x, windowed_y,
136 windowed_width, windowed_height, 0);
137 }
138 }
139 else
140 {
141 if (nk_button_label(nk, "Make Fullscreen"))
142 {
143 GLFWmonitor* monitor = glfwGetPrimaryMonitor();
144 const GLFWvidmode* mode = glfwGetVideoMode(monitor);
145 glfwGetWindowPos(window, &windowed_x, &windowed_y);
146 glfwGetWindowSize(window, &windowed_width, &windowed_height);
147 glfwSetWindowMonitor(window, monitor,
148 0, 0, mode->width, mode->height,
149 mode->refreshRate);
150 }
151 }
152
153 if (nk_button_label(nk, "Maximize"))
154 glfwMaximizeWindow(window);
155 if (nk_button_label(nk, "Iconify"))
156 glfwIconifyWindow(window);
157 if (nk_button_label(nk, "Restore"))
158 glfwRestoreWindow(window);
159
160 nk_layout_row_dynamic(nk, 30, 2);
161
162 if (nk_button_label(nk, "Hide (for 3s)"))
163 {
164 glfwHideWindow(window);
165
166 const double time = glfwGetTime() + 3.0;
167 while (glfwGetTime() < time)
168 glfwWaitEventsTimeout(1.0);
169
170 glfwShowWindow(window);
171 }
172 if (nk_button_label(nk, "Request Attention (after 3s)"))
173 {
174 glfwIconifyWindow(window);
175
176 const double time = glfwGetTime() + 3.0;
177 while (glfwGetTime() < time)
178 glfwWaitEventsTimeout(1.0);
179
180 glfwRequestWindowAttention(window);
181 }
182
183 nk_layout_row_dynamic(nk, 30, 1);
184
185 if (glfwGetWindowAttrib(window, GLFW_MOUSE_PASSTHROUGH))
186 {
187 nk_label(nk, "Press H to disable mouse passthrough", NK_TEXT_CENTERED);
188
189 if (glfwGetKey(window, GLFW_KEY_H))
190 glfwSetWindowAttrib(window, GLFW_MOUSE_PASSTHROUGH, false);
191 }
192
193 nk_label(nk, "Press Enter in a text field to set value", NK_TEXT_CENTERED);
194
195 nk_flags events;
196 const nk_flags flags = NK_EDIT_FIELD |
197 NK_EDIT_SIG_ENTER |
198 NK_EDIT_GOTO_END_ON_ACTIVATE;
199
200 nk_layout_row_begin(nk, NK_DYNAMIC, 30, 2);
201 nk_layout_row_push(nk, 1.f / 3.f);
202 nk_label(nk, "Title", NK_TEXT_LEFT);
203 nk_layout_row_push(nk, 2.f / 3.f);
204 events = nk_edit_string_zero_terminated(nk, flags, window_title,
205 sizeof(window_title), NULL);
206 if (events & NK_EDIT_COMMITED)
207 glfwSetWindowTitle(window, window_title);
208 nk_layout_row_end(nk);
209
210 if (position_supported)
211 {
212 int xpos, ypos;
213 glfwGetWindowPos(window, &xpos, &ypos);
214
215 nk_layout_row_dynamic(nk, 30, 3);
216 nk_label(nk, "Position", NK_TEXT_LEFT);
217
218 events = nk_edit_string_zero_terminated(nk, flags, xpos_buffer,
219 sizeof(xpos_buffer),
220 nk_filter_decimal);
221 if (events & NK_EDIT_COMMITED)
222 {
223 xpos = atoi(xpos_buffer);
224 glfwSetWindowPos(window, xpos, ypos);
225 }
226 else if (xpos != last_xpos || (events & NK_EDIT_DEACTIVATED))
227 sprintf(xpos_buffer, "%i", xpos);
228
229 events = nk_edit_string_zero_terminated(nk, flags, ypos_buffer,
230 sizeof(ypos_buffer),
231 nk_filter_decimal);
232 if (events & NK_EDIT_COMMITED)
233 {
234 ypos = atoi(ypos_buffer);
235 glfwSetWindowPos(window, xpos, ypos);
236 }
237 else if (ypos != last_ypos || (events & NK_EDIT_DEACTIVATED))
238 sprintf(ypos_buffer, "%i", ypos);
239
240 last_xpos = xpos;
241 last_ypos = ypos;
242 }
243 else
244 nk_label(nk, "Platform does not support window position", NK_TEXT_LEFT);
245
246 nk_layout_row_dynamic(nk, 30, 3);
247 nk_label(nk, "Size", NK_TEXT_LEFT);
248
249 events = nk_edit_string_zero_terminated(nk, flags, width_buffer,
250 sizeof(width_buffer),
251 nk_filter_decimal);
252 if (events & NK_EDIT_COMMITED)
253 {
254 width = atoi(width_buffer);
255 glfwSetWindowSize(window, width, height);
256 }
257 else if (width != last_width || (events & NK_EDIT_DEACTIVATED))
258 sprintf(width_buffer, "%i", width);
259
260 events = nk_edit_string_zero_terminated(nk, flags, height_buffer,
261 sizeof(height_buffer),
262 nk_filter_decimal);
263 if (events & NK_EDIT_COMMITED)
264 {
265 height = atoi(height_buffer);
266 glfwSetWindowSize(window, width, height);
267 }
268 else if (height != last_height || (events & NK_EDIT_DEACTIVATED))
269 sprintf(height_buffer, "%i", height);
270
271 last_width = width;
272 last_height = height;
273
274 bool update_ratio_limit = false;
275 if (nk_checkbox_label(nk, "Aspect Ratio", &limit_aspect_ratio))
276 update_ratio_limit = true;
277
278 events = nk_edit_string_zero_terminated(nk, flags, numer_buffer,
279 sizeof(numer_buffer),
280 nk_filter_decimal);
281 if (events & NK_EDIT_COMMITED)
282 {
283 aspect_numer = abs(atoi(numer_buffer));
284 update_ratio_limit = true;
285 }
286 else if (events & NK_EDIT_DEACTIVATED)
287 sprintf(numer_buffer, "%i", aspect_numer);
288
289 events = nk_edit_string_zero_terminated(nk, flags, denom_buffer,
290 sizeof(denom_buffer),
291 nk_filter_decimal);
292 if (events & NK_EDIT_COMMITED)
293 {
294 aspect_denom = abs(atoi(denom_buffer));
295 update_ratio_limit = true;
296 }
297 else if (events & NK_EDIT_DEACTIVATED)
298 sprintf(denom_buffer, "%i", aspect_denom);
299
300 if (update_ratio_limit)
301 {
302 if (limit_aspect_ratio)
303 glfwSetWindowAspectRatio(window, aspect_numer, aspect_denom);
304 else
305 glfwSetWindowAspectRatio(window, GLFW_DONT_CARE, GLFW_DONT_CARE);
306 }
307
308 bool update_size_limit = false;
309
310 if (nk_checkbox_label(nk, "Minimum Size", &limit_min_size))
311 update_size_limit = true;
312
313 events = nk_edit_string_zero_terminated(nk, flags, min_width_buffer,
314 sizeof(min_width_buffer),
315 nk_filter_decimal);
316 if (events & NK_EDIT_COMMITED)
317 {
318 min_width = abs(atoi(min_width_buffer));
319 update_size_limit = true;
320 }
321 else if (events & NK_EDIT_DEACTIVATED)
322 sprintf(min_width_buffer, "%i", min_width);
323
324 events = nk_edit_string_zero_terminated(nk, flags, min_height_buffer,
325 sizeof(min_height_buffer),
326 nk_filter_decimal);
327 if (events & NK_EDIT_COMMITED)
328 {
329 min_height = abs(atoi(min_height_buffer));
330 update_size_limit = true;
331 }
332 else if (events & NK_EDIT_DEACTIVATED)
333 sprintf(min_height_buffer, "%i", min_height);
334
335 if (nk_checkbox_label(nk, "Maximum Size", &limit_max_size))
336 update_size_limit = true;
337
338 events = nk_edit_string_zero_terminated(nk, flags, max_width_buffer,
339 sizeof(max_width_buffer),
340 nk_filter_decimal);
341 if (events & NK_EDIT_COMMITED)
342 {
343 max_width = abs(atoi(max_width_buffer));
344 update_size_limit = true;
345 }
346 else if (events & NK_EDIT_DEACTIVATED)
347 sprintf(max_width_buffer, "%i", max_width);
348
349 events = nk_edit_string_zero_terminated(nk, flags, max_height_buffer,
350 sizeof(max_height_buffer),
351 nk_filter_decimal);
352 if (events & NK_EDIT_COMMITED)
353 {
354 max_height = abs(atoi(max_height_buffer));
355 update_size_limit = true;
356 }
357 else if (events & NK_EDIT_DEACTIVATED)
358 sprintf(max_height_buffer, "%i", max_height);
359
360 if (update_size_limit)
361 {
362 glfwSetWindowSizeLimits(window,
363 limit_min_size ? min_width : GLFW_DONT_CARE,
364 limit_min_size ? min_height : GLFW_DONT_CARE,
365 limit_max_size ? max_width : GLFW_DONT_CARE,
366 limit_max_size ? max_height : GLFW_DONT_CARE);
367 }
368
369 int fb_width, fb_height;
370 glfwGetFramebufferSize(window, &fb_width, &fb_height);
371 nk_label(nk, "Framebuffer Size", NK_TEXT_LEFT);
372 nk_labelf(nk, NK_TEXT_LEFT, "%i", fb_width);
373 nk_labelf(nk, NK_TEXT_LEFT, "%i", fb_height);
374
375 float xscale, yscale;
376 glfwGetWindowContentScale(window, &xscale, &yscale);
377 nk_label(nk, "Content Scale", NK_TEXT_LEFT);
378 nk_labelf(nk, NK_TEXT_LEFT, "%f", xscale);
379 nk_labelf(nk, NK_TEXT_LEFT, "%f", yscale);
380
381 nk_layout_row_begin(nk, NK_DYNAMIC, 30, 5);
382 int frame_left, frame_top, frame_right, frame_bottom;
383 glfwGetWindowFrameSize(window, &frame_left, &frame_top, &frame_right, &frame_bottom);
384 nk_layout_row_push(nk, 1.f / 3.f);
385 nk_label(nk, "Frame Size:", NK_TEXT_LEFT);
386 nk_layout_row_push(nk, 1.f / 6.f);
387 nk_labelf(nk, NK_TEXT_LEFT, "%i", frame_left);
388 nk_layout_row_push(nk, 1.f / 6.f);
389 nk_labelf(nk, NK_TEXT_LEFT, "%i", frame_top);
390 nk_layout_row_push(nk, 1.f / 6.f);
391 nk_labelf(nk, NK_TEXT_LEFT, "%i", frame_right);
392 nk_layout_row_push(nk, 1.f / 6.f);
393 nk_labelf(nk, NK_TEXT_LEFT, "%i", frame_bottom);
394 nk_layout_row_end(nk);
395
396 nk_layout_row_begin(nk, NK_DYNAMIC, 30, 2);
397 float opacity = glfwGetWindowOpacity(window);
398 nk_layout_row_push(nk, 1.f / 3.f);
399 nk_labelf(nk, NK_TEXT_LEFT, "Opacity: %0.3f", opacity);
400 nk_layout_row_push(nk, 2.f / 3.f);
401 if (nk_slider_float(nk, 0.f, &opacity, 1.f, 0.001f))
402 glfwSetWindowOpacity(window, opacity);
403 nk_layout_row_end(nk);
404
405 nk_layout_row_begin(nk, NK_DYNAMIC, 30, 2);
406 int should_close = glfwWindowShouldClose(window);
407 nk_layout_row_push(nk, 1.f / 3.f);
408 if (nk_checkbox_label(nk, "Should Close", &should_close))
409 glfwSetWindowShouldClose(window, should_close);
410 nk_layout_row_push(nk, 2.f / 3.f);
411 nk_checkbox_label(nk, "May Close", &may_close);
412 nk_layout_row_end(nk);
413
414 nk_layout_row_dynamic(nk, 30, 1);
415 nk_label(nk, "Attributes", NK_TEXT_CENTERED);
416
417 nk_layout_row_dynamic(nk, 30, width > 200 ? width / 200 : 1);
418
419 int decorated = glfwGetWindowAttrib(window, GLFW_DECORATED);
420 if (nk_checkbox_label(nk, "Decorated", &decorated))
421 glfwSetWindowAttrib(window, GLFW_DECORATED, decorated);
422
423 int resizable = glfwGetWindowAttrib(window, GLFW_RESIZABLE);
424 if (nk_checkbox_label(nk, "Resizable", &resizable))
425 glfwSetWindowAttrib(window, GLFW_RESIZABLE, resizable);
426
427 int floating = glfwGetWindowAttrib(window, GLFW_FLOATING);
428 if (nk_checkbox_label(nk, "Floating", &floating))
429 glfwSetWindowAttrib(window, GLFW_FLOATING, floating);
430
431 int passthrough = glfwGetWindowAttrib(window, GLFW_MOUSE_PASSTHROUGH);
432 if (nk_checkbox_label(nk, "Mouse Passthrough", &passthrough))
433 glfwSetWindowAttrib(window, GLFW_MOUSE_PASSTHROUGH, passthrough);
434
435 int auto_iconify = glfwGetWindowAttrib(window, GLFW_AUTO_ICONIFY);
436 if (nk_checkbox_label(nk, "Auto Iconify", &auto_iconify))
437 glfwSetWindowAttrib(window, GLFW_AUTO_ICONIFY, auto_iconify);
438
439 nk_value_bool(nk, "Focused", glfwGetWindowAttrib(window, GLFW_FOCUSED));
440 nk_value_bool(nk, "Hovered", glfwGetWindowAttrib(window, GLFW_HOVERED));
441 nk_value_bool(nk, "Visible", glfwGetWindowAttrib(window, GLFW_VISIBLE));
442 nk_value_bool(nk, "Iconified", glfwGetWindowAttrib(window, GLFW_ICONIFIED));
443 nk_value_bool(nk, "Maximized", glfwGetWindowAttrib(window, GLFW_MAXIMIZED));
444 }
445 nk_end(nk);
446
447 glClear(GL_COLOR_BUFFER_BIT);
448 nk_glfw3_render(NK_ANTI_ALIASING_ON);
449 glfwSwapBuffers(window);
450
451 glfwWaitEvents();
452 }
453
454 nk_glfw3_shutdown();
455 glfwTerminate();
456 exit(EXIT_SUCCESS);
457 }
458
459