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
hitTest(SDL_Window * window,const SDL_Point * pt,void * data)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
main(int argc,char ** argv)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 }
135