1 /*
2 Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
3
4 This software is provided 'as-is', without any express or implied
5 warranty. In no event will the authors be held liable for any damages
6 arising from the use of this software.
7
8 Permission is granted to anyone to use this software for any purpose,
9 including commercial applications, and to alter it and redistribute it
10 freely.
11 */
12
13 #include <stdlib.h>
14 #include <stdio.h>
15
16 #ifdef __EMSCRIPTEN__
17 #include <emscripten/emscripten.h>
18 #endif
19
20 #include "SDL_test_common.h"
21 #include "SDL_test_font.h"
22
23 static SDLTest_CommonState *state;
24 int done;
25
26 static const char *cursorNames[] = {
27 "arrow",
28 "ibeam",
29 "wait",
30 "crosshair",
31 "waitarrow",
32 "sizeNWSE",
33 "sizeNESW",
34 "sizeWE",
35 "sizeNS",
36 "sizeALL",
37 "NO",
38 "hand",
39 };
40 int system_cursor = -1;
41 SDL_Cursor *cursor = NULL;
42 SDL_bool relative_mode = SDL_FALSE;
43 int highlighted_mode = -1;
44
45 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
46 static void
quit(int rc)47 quit(int rc)
48 {
49 SDLTest_CommonQuit(state);
50 exit(rc);
51 }
52
53 /* Draws the modes menu, and stores the mode index under the mouse in highlighted_mode */
54 static void
draw_modes_menu(SDL_Window * window,SDL_Renderer * renderer,SDL_Rect viewport)55 draw_modes_menu(SDL_Window *window, SDL_Renderer *renderer, SDL_Rect viewport)
56 {
57 SDL_DisplayMode mode;
58 char text[1024];
59 const int lineHeight = 10;
60 const int display_index = SDL_GetWindowDisplayIndex(window);
61 const int num_modes = SDL_GetNumDisplayModes(display_index);
62 int i;
63 int column_chars = 0;
64 int text_length;
65 int x, y;
66 int table_top;
67 SDL_Point mouse_pos = { -1, -1 };
68
69 /* Get mouse position */
70 if (SDL_GetMouseFocus() == window) {
71 int window_x, window_y;
72 float logical_x, logical_y;
73
74 SDL_GetMouseState(&window_x, &window_y);
75 SDL_RenderWindowToLogical(renderer, window_x, window_y, &logical_x, &logical_y);
76
77 mouse_pos.x = (int)logical_x;
78 mouse_pos.y = (int)logical_y;
79 }
80
81 x = 0;
82 y = viewport.y;
83
84 y += lineHeight;
85
86 SDL_snprintf(text, sizeof(text), "Click on a mode to set it with SDL_SetWindowDisplayMode");
87 SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
88 SDLTest_DrawString(renderer, x, y, text);
89 y += lineHeight;
90
91 SDL_snprintf(text, sizeof(text), "Press Ctrl+Enter to toggle SDL_WINDOW_FULLSCREEN");
92 SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
93 SDLTest_DrawString(renderer, x, y, text);
94 y += lineHeight;
95
96 table_top = y;
97
98 /* Clear the cached mode under the mouse */
99 if (window == SDL_GetMouseFocus()) {
100 highlighted_mode = -1;
101 }
102
103 for (i = 0; i < num_modes; ++i) {
104 SDL_Rect cell_rect;
105
106 if (0 != SDL_GetDisplayMode(display_index, i, &mode)) {
107 return;
108 }
109
110 SDL_snprintf(text, sizeof(text), "%d: %dx%d@%dHz",
111 i, mode.w, mode.h, mode.refresh_rate);
112
113 /* Update column width */
114 text_length = (int)SDL_strlen(text);
115 column_chars = SDL_max(column_chars, text_length);
116
117 /* Check if under mouse */
118 cell_rect.x = x;
119 cell_rect.y = y;
120 cell_rect.w = text_length * FONT_CHARACTER_SIZE;
121 cell_rect.h = lineHeight;
122
123 if (SDL_PointInRect(&mouse_pos, &cell_rect)) {
124 SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
125
126 /* Update cached mode under the mouse */
127 if (window == SDL_GetMouseFocus()) {
128 highlighted_mode = i;
129 }
130 } else {
131 SDL_SetRenderDrawColor(renderer, 170, 170, 170, 255);
132 }
133
134 SDLTest_DrawString(renderer, x, y, text);
135 y += lineHeight;
136
137 if (y + lineHeight > (viewport.y + viewport.h)) {
138 /* Advance to next column */
139 x += (column_chars + 1) * FONT_CHARACTER_SIZE;
140 y = table_top;
141 column_chars = 0;
142 }
143 }
144 }
145
146 void
loop()147 loop()
148 {
149 int i;
150 SDL_Event event;
151 /* Check for events */
152 while (SDL_PollEvent(&event)) {
153 SDLTest_CommonEvent(state, &event, &done);
154
155 if (event.type == SDL_WINDOWEVENT) {
156 if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
157 SDL_Window *window = SDL_GetWindowFromID(event.window.windowID);
158 if (window) {
159 SDL_Log("Window %d resized to %dx%d\n",
160 event.window.windowID,
161 event.window.data1,
162 event.window.data2);
163 }
164 }
165 if (event.window.event == SDL_WINDOWEVENT_MOVED) {
166 SDL_Window *window = SDL_GetWindowFromID(event.window.windowID);
167 if (window) {
168 SDL_Log("Window %d moved to %d,%d (display %s)\n",
169 event.window.windowID,
170 event.window.data1,
171 event.window.data2,
172 SDL_GetDisplayName(SDL_GetWindowDisplayIndex(window)));
173 }
174 }
175 if (event.window.event == SDL_WINDOWEVENT_FOCUS_LOST) {
176 relative_mode = SDL_GetRelativeMouseMode();
177 if (relative_mode) {
178 SDL_SetRelativeMouseMode(SDL_FALSE);
179 }
180 }
181 if (event.window.event == SDL_WINDOWEVENT_FOCUS_GAINED) {
182 if (relative_mode) {
183 SDL_SetRelativeMouseMode(SDL_TRUE);
184 }
185 }
186 }
187 if (event.type == SDL_KEYUP) {
188 SDL_bool updateCursor = SDL_FALSE;
189
190 if (event.key.keysym.sym == SDLK_LEFT) {
191 --system_cursor;
192 if (system_cursor < 0) {
193 system_cursor = SDL_NUM_SYSTEM_CURSORS - 1;
194 }
195 updateCursor = SDL_TRUE;
196 } else if (event.key.keysym.sym == SDLK_RIGHT) {
197 ++system_cursor;
198 if (system_cursor >= SDL_NUM_SYSTEM_CURSORS) {
199 system_cursor = 0;
200 }
201 updateCursor = SDL_TRUE;
202 }
203 if (updateCursor) {
204 SDL_Log("Changing cursor to \"%s\"", cursorNames[system_cursor]);
205 SDL_FreeCursor(cursor);
206 cursor = SDL_CreateSystemCursor((SDL_SystemCursor)system_cursor);
207 SDL_SetCursor(cursor);
208 }
209 }
210 if (event.type == SDL_MOUSEBUTTONUP) {
211 SDL_Window* window = SDL_GetMouseFocus();
212 if (highlighted_mode != -1 && window != NULL) {
213 const int display_index = SDL_GetWindowDisplayIndex(window);
214 SDL_DisplayMode mode;
215 if (0 != SDL_GetDisplayMode(display_index, highlighted_mode, &mode)) {
216 SDL_Log("Couldn't get display mode");
217 } else {
218 SDL_SetWindowDisplayMode(window, &mode);
219 }
220 }
221 }
222 }
223
224 for (i = 0; i < state->num_windows; ++i) {
225 SDL_Window* window = state->windows[i];
226 SDL_Renderer *renderer = state->renderers[i];
227 if (window != NULL && renderer != NULL) {
228 int y = 0;
229 SDL_Rect viewport, menurect;
230
231 SDL_RenderGetViewport(renderer, &viewport);
232
233 SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
234 SDL_RenderClear(renderer);
235
236 SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
237 SDLTest_CommonDrawWindowInfo(renderer, state->windows[i], &y);
238
239 menurect.x = 0;
240 menurect.y = y;
241 menurect.w = viewport.w;
242 menurect.h = viewport.h - y;
243 draw_modes_menu(window, renderer, menurect);
244
245 SDL_RenderPresent(renderer);
246 }
247 }
248 #ifdef __EMSCRIPTEN__
249 if (done) {
250 emscripten_cancel_main_loop();
251 }
252 #endif
253 }
254
255 int
main(int argc,char * argv[])256 main(int argc, char *argv[])
257 {
258 int i;
259
260 /* Enable standard application logging */
261 SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
262
263 SDL_assert(SDL_arraysize(cursorNames) == SDL_NUM_SYSTEM_CURSORS);
264
265 /* Initialize test framework */
266 state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
267 if (!state) {
268 return 1;
269 }
270
271 if (!SDLTest_CommonDefaultArgs(state, argc, argv) || !SDLTest_CommonInit(state)) {
272 SDLTest_CommonQuit(state);
273 return 1;
274 }
275
276 SDL_EventState(SDL_DROPFILE, SDL_ENABLE);
277 SDL_EventState(SDL_DROPTEXT, SDL_ENABLE);
278
279 for (i = 0; i < state->num_windows; ++i) {
280 SDL_Renderer *renderer = state->renderers[i];
281 SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
282 SDL_RenderClear(renderer);
283 }
284
285 /* Main render loop */
286 done = 0;
287 #ifdef __EMSCRIPTEN__
288 emscripten_set_main_loop(loop, 0, 1);
289 #else
290 while (!done) {
291 loop();
292 }
293 #endif
294 SDL_FreeCursor(cursor);
295
296 quit(0);
297 /* keep the compiler happy ... */
298 return(0);
299 }
300
301 /* vi: set ts=4 sw=4 expandtab: */
302