test/testhittesting.c
author Sam Lantinga <slouken@libsdl.org>
Thu, 07 Dec 2017 16:08:09 -0800
changeset 11730 ac6c607e065c
parent 11272 d60ede5a0c2e
permissions -rw-r--r--
Enable building the Metal renderer by default, and weak link the Metal framework so the SDL library is safe to use on older Macs
Also generate iOS versions of the Metal shaders
     1 #include <stdio.h>
     2 #include "SDL.h"
     3 
     4 /* !!! FIXME: rewrite this to be wired in to test framework. */
     5 
     6 #define RESIZE_BORDER 20
     7 
     8 const SDL_Rect drag_areas[] = {
     9     { 20, 20, 100, 100 },
    10     { 200, 70, 100, 100 },
    11     { 400, 90, 100, 100 }
    12 };
    13 
    14 static const SDL_Rect *areas = drag_areas;
    15 static int numareas = SDL_arraysize(drag_areas);
    16 
    17 static SDL_HitTestResult SDLCALL
    18 hitTest(SDL_Window *window, const SDL_Point *pt, void *data)
    19 {
    20     int i;
    21     int w, h;
    22 
    23     for (i = 0; i < numareas; i++) {
    24         if (SDL_PointInRect(pt, &areas[i])) {
    25             SDL_Log("HIT-TEST: DRAGGABLE\n");
    26             return SDL_HITTEST_DRAGGABLE;
    27         }
    28     }
    29 
    30     SDL_GetWindowSize(window, &w, &h);
    31 
    32     #define REPORT_RESIZE_HIT(name) { \
    33         SDL_Log("HIT-TEST: RESIZE_" #name "\n"); \
    34         return SDL_HITTEST_RESIZE_##name; \
    35     }
    36 
    37     if (pt->x < RESIZE_BORDER && pt->y < RESIZE_BORDER) {
    38         REPORT_RESIZE_HIT(TOPLEFT);
    39     } else if (pt->x > RESIZE_BORDER && pt->x < w - RESIZE_BORDER && pt->y < RESIZE_BORDER) {
    40         REPORT_RESIZE_HIT(TOP);
    41     } else if (pt->x > w - RESIZE_BORDER && pt->y < RESIZE_BORDER) {
    42         REPORT_RESIZE_HIT(TOPRIGHT);
    43     } else if (pt->x > w - RESIZE_BORDER && pt->y > RESIZE_BORDER && pt->y < h - RESIZE_BORDER) {
    44         REPORT_RESIZE_HIT(RIGHT);
    45     } else if (pt->x > w - RESIZE_BORDER && pt->y > h - RESIZE_BORDER) {
    46         REPORT_RESIZE_HIT(BOTTOMRIGHT);
    47     } else if (pt->x < w - RESIZE_BORDER && pt->x > RESIZE_BORDER && pt->y > h - RESIZE_BORDER) {
    48         REPORT_RESIZE_HIT(BOTTOM);
    49     } else if (pt->x < RESIZE_BORDER && pt->y > h - RESIZE_BORDER) {
    50         REPORT_RESIZE_HIT(BOTTOMLEFT);
    51     } else if (pt->x < RESIZE_BORDER && pt->y < h - RESIZE_BORDER && pt->y > RESIZE_BORDER) {
    52         REPORT_RESIZE_HIT(LEFT);
    53     }
    54 
    55     SDL_Log("HIT-TEST: NORMAL\n");
    56     return SDL_HITTEST_NORMAL;
    57 }
    58 
    59 
    60 int main(int argc, char **argv)
    61 {
    62     int done = 0;
    63     SDL_Window *window;
    64     SDL_Renderer *renderer;
    65 
    66     /* !!! FIXME: check for errors. */
    67     SDL_Init(SDL_INIT_VIDEO);
    68     window = SDL_CreateWindow("Drag the red boxes", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE);
    69     renderer = SDL_CreateRenderer(window, -1, 0);
    70 
    71     if (SDL_SetWindowHitTest(window, hitTest, NULL) == -1) {
    72         SDL_Log("Enabling hit-testing failed!\n");
    73         SDL_Quit();
    74         return 1;
    75     }
    76 
    77     while (!done)
    78     {
    79         SDL_Event e;
    80         int nothing_to_do = 1;
    81 
    82         SDL_SetRenderDrawColor(renderer, 0, 0, 127, 255);
    83         SDL_RenderClear(renderer);
    84         SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
    85         SDL_RenderFillRects(renderer, areas, SDL_arraysize(drag_areas));
    86         SDL_RenderPresent(renderer);
    87 
    88         while (SDL_PollEvent(&e)) {
    89             nothing_to_do = 0;
    90 
    91             switch (e.type)
    92             {
    93                 case SDL_MOUSEBUTTONDOWN:
    94                     SDL_Log("button down!\n");
    95                     break;
    96 
    97                 case SDL_MOUSEBUTTONUP:
    98                     SDL_Log("button up!\n");
    99                     break;
   100 
   101                 case SDL_WINDOWEVENT:
   102                     if (e.window.event == SDL_WINDOWEVENT_MOVED) {
   103                         SDL_Log("Window event moved to (%d, %d)!\n", (int) e.window.data1, (int) e.window.data2);
   104                     }
   105                     break;
   106 
   107                 case SDL_KEYDOWN:
   108                     if (e.key.keysym.sym == SDLK_ESCAPE) {
   109                         done = 1;
   110                     } else if (e.key.keysym.sym == SDLK_x) {
   111                         if (!areas) {
   112                             areas = drag_areas;
   113                             numareas = SDL_arraysize(drag_areas);
   114                         } else {
   115                             areas = NULL;
   116                             numareas = 0;
   117                         }
   118                     }
   119                     break;
   120 
   121                 case SDL_QUIT:
   122                     done = 1;
   123                     break;
   124             }
   125         }
   126 
   127         if (nothing_to_do) {
   128             SDL_Delay(50);
   129         }
   130     }
   131 
   132     SDL_Quit();
   133     return 0;
   134 }