testhittesting.c
Go to the documentation of this file.
#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);
static SDL_HitTestResult SDLCALL
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;
}
SDL_WINDOWPOS_CENTERED
#define SDL_WINDOWPOS_CENTERED
Definition: SDL_video.h:139
SDL_PollEvent
#define SDL_PollEvent
Definition: SDL_dynapi_overrides.h:122
SDL_KEYDOWN
Definition: SDL_events.h:93
e
SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char const char SDL_SCANF_FORMAT_STRING const char return SDL_ThreadFunction const char void return Uint32 return Uint32 SDL_AssertionHandler void SDL_SpinLock SDL_atomic_t int int return SDL_atomic_t return void void void return void return int return SDL_AudioSpec SDL_AudioSpec return int int return return int SDL_RWops int SDL_AudioSpec Uint8 Uint32 * e
Definition: SDL_dynapi_procs.h:117
SDL_MOUSEBUTTONUP
Definition: SDL_events.h:104
SDL_HITTEST_NORMAL
Definition: SDL_video.h:995
numareas
static int numareas
Definition: testhittesting.c:15
h
GLfloat GLfloat GLfloat GLfloat h
Definition: SDL_opengl_glext.h:1946
SDL_MOUSEBUTTONDOWN
Definition: SDL_events.h:103
SDL_Point
The structure that defines a point.
Definition: SDL_rect.h:48
SDL_QUIT
Definition: SDL_events.h:60
SDL_Renderer
Definition: SDL_sysrender.h:76
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
SDL_CreateWindow
#define SDL_CreateWindow
Definition: SDL_dynapi_overrides.h:514
SDL_PointInRect
SDL_FORCE_INLINE SDL_bool SDL_PointInRect(const SDL_Point *p, const SDL_Rect *r)
Returns true if point resides inside a rectangle.
Definition: SDL_rect.h:73
drag_areas
const SDL_Rect drag_areas[]
Definition: testhittesting.c:8
SDL_HitTestResult
SDL_HitTestResult
Possible return values from the SDL_HitTest callback.
Definition: SDL_video.h:993
SDL_Event::window
SDL_WindowEvent window
Definition: SDL_events.h:529
SDL_Point::x
int x
Definition: SDL_rect.h:50
SDL_GetWindowSize
#define SDL_GetWindowSize
Definition: SDL_dynapi_overrides.h:527
SDL_Log
#define SDL_Log
Definition: SDL_dynapi_overrides.h:31
SDL_RenderFillRects
#define SDL_RenderFillRects
Definition: SDL_dynapi_overrides.h:342
SDLK_x
Definition: SDL_keycode.h:123
SDL_Point::y
int y
Definition: SDL_rect.h:51
renderer
static SDL_Renderer * renderer
Definition: testaudiocapture.c:21
SDL_Quit
#define SDL_Quit
Definition: SDL_dynapi_overrides.h:58
done
int done
Definition: checkkeys.c:28
SDL_WindowEvent::data2
Sint32 data2
Definition: SDL_events.h:184
w
GLubyte GLubyte GLubyte GLubyte w
Definition: SDL_opengl_glext.h:731
SDL_WINDOWEVENT
Definition: SDL_events.h:89
SDL_HITTEST_DRAGGABLE
Definition: SDL_video.h:996
SDL_WindowEvent::event
Uint8 event
Definition: SDL_events.h:179
SDL_KeyboardEvent::keysym
SDL_Keysym keysym
Definition: SDL_events.h:199
hitTest
static SDL_HitTestResult hitTest(SDL_Window *window, const SDL_Point *pt, void *data)
Definition: testhittesting.c:18
SDL_Delay
#define SDL_Delay
Definition: SDL_dynapi_overrides.h:486
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
RESIZE_BORDER
#define RESIZE_BORDER
Definition: testhittesting.c:6
NULL
#define NULL
Definition: begin_code.h:164
SDL_WINDOW_RESIZABLE
Definition: SDL_video.h:105
SDL_WINDOW_BORDERLESS
Definition: SDL_video.h:104
REPORT_RESIZE_HIT
#define REPORT_RESIZE_HIT(name)
SDL_RenderClear
#define SDL_RenderClear
Definition: SDL_dynapi_overrides.h:334
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_Event::key
SDL_KeyboardEvent key
Definition: SDL_events.h:530
SDL_SetWindowHitTest
#define SDL_SetWindowHitTest
Definition: SDL_dynapi_overrides.h:585
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDL_Keysym::sym
SDL_Keycode sym
Definition: SDL_keyboard.h:50
SDL_Init
#define SDL_Init
Definition: SDL_dynapi_overrides.h:54
SDL_arraysize
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:93
SDL_Event
General event structure.
Definition: SDL_events.h:525
SDL_SetRenderDrawColor
#define SDL_SetRenderDrawColor
Definition: SDL_dynapi_overrides.h:330
areas
static const SDL_Rect * areas
Definition: testhittesting.c:14
SDLK_ESCAPE
Definition: SDL_keycode.h:55
SDL_WindowEvent::data1
Sint32 data1
Definition: SDL_events.h:183
main
int main(int argc, char **argv)
Definition: testhittesting.c:60
SDL.h
SDL_WINDOWEVENT_MOVED
Definition: SDL_video.h:153
SDLCALL
#define SDLCALL
Definition: SDL_internal.h:45
SDL_INIT_VIDEO
#define SDL_INIT_VIDEO
Definition: SDL.h:78
SDL_CreateRenderer
#define SDL_CreateRenderer
Definition: SDL_dynapi_overrides.h:301
SDL_Rect
A rectangle, with the origin at the upper left.
Definition: SDL_rect.h:64
SDL_RenderPresent
#define SDL_RenderPresent
Definition: SDL_dynapi_overrides.h:346
SDL_Event::type
Uint32 type
Definition: SDL_events.h:527