Atlas - testmodal.c
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[FILE BEGIN]
1/*
2  Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
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/* Sample program:  Create a parent window and a modal child window. */
13
14#include <SDL3/SDL.h>
15#include <SDL3/SDL_main.h>
16#include <SDL3/SDL_test.h>
17#include <stdlib.h>
18
19int main(int argc, char *argv[])
20{
21    SDL_Window *w1 = NULL, *w2 = NULL;
22    SDL_Renderer *r1 = NULL, *r2 = NULL;
23    SDLTest_CommonState *state = NULL;
24    Uint64 show_deadline = 0;
25    int i;
26    int exit_code = 0;
27
28    /* Initialize test framework */
29    state = SDLTest_CommonCreateState(argv, 0);
30    if (state == NULL) {
31        return 1;
32    }
33
34    /* Parse commandline */
35    for (i = 1; i < argc;) {
36        int consumed;
37
38        consumed = SDLTest_CommonArg(state, i);
39
40        if (consumed <= 0) {
41            static const char *options[] = { NULL };
42            SDLTest_CommonLogUsage(state, argv[0], options);
43            return 1;
44        }
45
46        i += consumed;
47    }
48
49    if (!SDL_Init(SDL_INIT_VIDEO)) {
50        SDL_Log("SDL_Init failed (%s)", SDL_GetError());
51        return 1;
52    }
53
54    if (!SDL_CreateWindowAndRenderer("Parent Window", 640, 480, 0, &w1, &r1)) {
55        SDL_Log("Failed to create parent window and/or renderer: %s", SDL_GetError());
56        exit_code = 1;
57        goto sdl_quit;
58    }
59
60    if (!SDL_CreateWindowAndRenderer("Non-Modal Window", 320, 200, 0, &w2, &r2)) {
61        SDL_Log("Failed to create parent window and/or renderer: %s", SDL_GetError());
62        exit_code = 1;
63        goto sdl_quit;
64    }
65
66    if (SDL_SetWindowParent(w2, w1)) {
67        if (SDL_SetWindowModal(w2, true)) {
68            SDL_SetWindowTitle(w2, "Modal Window");
69        }
70    }
71
72    while (1) {
73        int quit = 0;
74        SDL_Event e;
75        while (SDL_PollEvent(&e)) {
76            if (e.type == SDL_EVENT_QUIT) {
77                quit = 1;
78                break;
79            } else if (e.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED) {
80                if (e.window.windowID == SDL_GetWindowID(w2)) {
81                    SDL_DestroyRenderer(r2);
82                    SDL_DestroyWindow(w2);
83                    r2 = NULL;
84                    w2 = NULL;
85                } else if (e.window.windowID == SDL_GetWindowID(w1)) {
86                    SDL_DestroyRenderer(r1);
87                    SDL_DestroyWindow(w1);
88                    r1 = NULL;
89                    w1 = NULL;
90                }
91            } else if (e.type == SDL_EVENT_KEY_DOWN) {
92                if ((e.key.key == SDLK_M || e.key.key == SDLK_N) && !w2) {
93                    if (!SDL_CreateWindowAndRenderer("Non-Modal Window", 320, 200, SDL_WINDOW_HIDDEN, &w2, &r2)) {
94                        SDL_Log("Failed to create modal window and/or renderer: %s", SDL_GetError());
95                        exit_code = 1;
96                        goto sdl_quit;
97                    }
98
99                    if (e.key.key == SDLK_M) {
100                        if (SDL_SetWindowParent(w2, w1)) {
101                            if (SDL_SetWindowModal(w2, true)) {
102                                SDL_SetWindowTitle(w2, "Modal Window");
103                            }
104                        }
105                    }
106                    SDL_ShowWindow(w2);
107                } else if (e.key.key == SDLK_ESCAPE && w2) {
108                    SDL_DestroyWindow(w2);
109                    r2 = NULL;
110                    w2 = NULL;
111                } else if (e.key.key == SDLK_H) {
112                    if (e.key.mod & SDL_KMOD_CTRL) {
113                        /* Hide the parent, which should hide the modal too. */
114                        show_deadline = SDL_GetTicksNS() + SDL_SECONDS_TO_NS(3);
115                        SDL_HideWindow(w1);
116                    } else if (w2) {
117                        /* Show/hide the modal window */
118                        if (SDL_GetWindowFlags(w2) & SDL_WINDOW_HIDDEN) {
119                            SDL_ShowWindow(w2);
120                        } else {
121                            SDL_HideWindow(w2);
122                        }
123                    }
124                } else if (e.key.key == SDLK_P && w2) {
125                    if (SDL_GetWindowFlags(w2) & SDL_WINDOW_MODAL) {
126                        /* Unparent the window */
127                        if (SDL_SetWindowModal(w2, false)) {
128                            if (SDL_SetWindowParent(w2, NULL)) {
129                                SDL_SetWindowTitle(w2, "Non-Modal Window");
130                            }
131                        }
132                    } else {
133                        /* Reparent the window */
134                        if (SDL_SetWindowParent(w2, w1)) {
135                            if (SDL_SetWindowModal(w2, true)) {
136                                SDL_SetWindowTitle(w2, "Modal Window");
137                            }
138                        }
139                    }
140                }
141            }
142        }
143        if (quit) {
144            break;
145        }
146        SDL_Delay(100);
147
148        if (show_deadline && show_deadline <= SDL_GetTicksNS()) {
149            SDL_ShowWindow(w1);
150        }
151
152        /* Parent window is red */
153        if (r1) {
154            SDL_SetRenderDrawColor(r1, 224, 48, 12, SDL_ALPHA_OPAQUE);
155            SDL_RenderClear(r1);
156            SDL_RenderPresent(r1);
157        }
158
159        /* Child window is blue */
160        if (r2) {
161            SDL_SetRenderDrawColor(r2, 6, 76, 255, SDL_ALPHA_OPAQUE);
162            SDL_RenderClear(r2);
163            SDL_RenderPresent(r2);
164        }
165    }
166
167sdl_quit:
168    if (w1) {
169        /* The child window and renderer will be cleaned up automatically. */
170        SDL_DestroyWindow(w1);
171    }
172
173    SDL_Quit();
174    SDLTest_CommonDestroyState(state);
175    return exit_code;
176}
177
[FILE END]
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