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      1 /*
      2   Copyright (C) 1997-2014 Sam Lantinga <slouken (at) 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 /* Simple program:  Test relative mouse motion */
     14 
     15 #include <stdlib.h>
     16 #include <stdio.h>
     17 #include <time.h>
     18 
     19 #include "SDL_test_common.h"
     20 
     21 
     22 static SDLTest_CommonState *state;
     23 static SDL_Rect rect;
     24 
     25 static void
     26 DrawRects(SDL_Renderer * renderer)
     27 {
     28     SDL_SetRenderDrawColor(renderer, 255, 127, 0, 255);
     29     SDL_RenderFillRect(renderer,&rect);
     30 }
     31 
     32 int
     33 main(int argc, char *argv[])
     34 {
     35     int i, done;
     36     SDL_Event event;
     37 
     38 	/* Enable standard application logging */
     39     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
     40 
     41     /* Initialize test framework */
     42     state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
     43     if (!state) {
     44         return 1;
     45     }
     46     for (i = 1; i < argc;i++) {
     47         SDLTest_CommonArg(state, i);
     48     }
     49     if (!SDLTest_CommonInit(state)) {
     50         return 2;
     51     }
     52 
     53     /* Create the windows and initialize the renderers */
     54     for (i = 0; i < state->num_windows; ++i) {
     55         SDL_Renderer *renderer = state->renderers[i];
     56         SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_NONE);
     57         SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
     58         SDL_RenderClear(renderer);
     59     }
     60 
     61     srand((unsigned int)time(NULL));
     62     if(SDL_SetRelativeMouseMode(SDL_TRUE) < 0) {
     63         return 3;
     64     };
     65 
     66     rect.x = DEFAULT_WINDOW_WIDTH / 2;
     67     rect.y = DEFAULT_WINDOW_HEIGHT / 2;
     68     rect.w = 10;
     69     rect.h = 10;
     70     /* Main render loop */
     71     done = 0;
     72     while (!done) {
     73         /* Check for events */
     74         while (SDL_PollEvent(&event)) {
     75             SDLTest_CommonEvent(state, &event, &done);
     76             switch(event.type) {
     77                 case SDL_MOUSEMOTION:
     78                 {
     79                     rect.x += event.motion.xrel;
     80                     rect.y += event.motion.yrel;
     81                 }
     82                 break;
     83             }
     84         }
     85         for (i = 0; i < state->num_windows; ++i) {
     86             SDL_Renderer *renderer = state->renderers[i];
     87             if (state->windows[i] == NULL)
     88                 continue;
     89             SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
     90             SDL_RenderClear(renderer);
     91 
     92             DrawRects(renderer);
     93 
     94             SDL_RenderPresent(renderer);
     95         }
     96     }
     97 
     98     SDLTest_CommonQuit(state);
     99     return 0;
    100 }
    101 
    102 /* vi: set ts=4 sw=4 expandtab: */
    103