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