diff options
Diffstat (limited to 'source/3rd-party/SDL2/src/video/android/SDL_androidtouch.c')
| -rw-r--r-- | source/3rd-party/SDL2/src/video/android/SDL_androidtouch.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/video/android/SDL_androidtouch.c b/source/3rd-party/SDL2/src/video/android/SDL_androidtouch.c new file mode 100644 index 0000000..5c3e4aa --- /dev/null +++ b/source/3rd-party/SDL2/src/video/android/SDL_androidtouch.c @@ -0,0 +1,151 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ +#include "../../SDL_internal.h" + +#if SDL_VIDEO_DRIVER_ANDROID + +#include <android/log.h> + +#include "SDL_hints.h" +#include "SDL_events.h" +#include "SDL_log.h" +#include "SDL_androidtouch.h" +#include "../../events/SDL_mouse_c.h" +#include "../../events/SDL_touch_c.h" +#include "../../core/android/SDL_android.h" + +#define ACTION_DOWN 0 +#define ACTION_UP 1 +#define ACTION_MOVE 2 +#define ACTION_CANCEL 3 +#define ACTION_OUTSIDE 4 +#define ACTION_POINTER_DOWN 5 +#define ACTION_POINTER_UP 6 + +static void Android_GetWindowCoordinates(float x, float y, + int *window_x, int *window_y) +{ + int window_w, window_h; + + SDL_GetWindowSize(Android_Window, &window_w, &window_h); + *window_x = (int)(x * window_w); + *window_y = (int)(y * window_h); +} + +static SDL_bool separate_mouse_and_touch = SDL_FALSE; + +static void SDLCALL +SeparateEventsHintWatcher(void *userdata, const char *name, + const char *oldValue, const char *newValue) +{ + separate_mouse_and_touch = (newValue && (SDL_strcmp(newValue, "1") == 0)); + + Android_JNI_SetSeparateMouseAndTouch(separate_mouse_and_touch); +} + +void Android_InitTouch(void) +{ + int i; + int* ids; + const int number = Android_JNI_GetTouchDeviceIds(&ids); + + SDL_AddHintCallback(SDL_HINT_ANDROID_SEPARATE_MOUSE_AND_TOUCH, + SeparateEventsHintWatcher, NULL); + + if (0 < number) { + for (i = 0; i < number; ++i) { + SDL_AddTouch((SDL_TouchID) ids[i], ""); /* no error handling */ + } + SDL_free(ids); + } +} + +void Android_QuitTouch(void) +{ + SDL_DelHintCallback(SDL_HINT_ANDROID_SEPARATE_MOUSE_AND_TOUCH, + SeparateEventsHintWatcher, NULL); + separate_mouse_and_touch = SDL_FALSE; +} + +void Android_OnTouch(int touch_device_id_in, int pointer_finger_id_in, int action, float x, float y, float p) +{ + SDL_TouchID touchDeviceId = 0; + SDL_FingerID fingerId = 0; + int window_x, window_y; + static SDL_FingerID pointerFingerID = 0; + + if (!Android_Window) { + return; + } + + touchDeviceId = (SDL_TouchID)touch_device_id_in; + if (SDL_AddTouch(touchDeviceId, "") < 0) { + SDL_Log("error: can't add touch %s, %d", __FILE__, __LINE__); + } + + fingerId = (SDL_FingerID)pointer_finger_id_in; + switch (action) { + case ACTION_DOWN: + /* Primary pointer down */ + if (!separate_mouse_and_touch) { + Android_GetWindowCoordinates(x, y, &window_x, &window_y); + /* send moved event */ + SDL_SendMouseMotion(Android_Window, SDL_TOUCH_MOUSEID, 0, window_x, window_y); + /* send mouse down event */ + SDL_SendMouseButton(Android_Window, SDL_TOUCH_MOUSEID, SDL_PRESSED, SDL_BUTTON_LEFT); + } + pointerFingerID = fingerId; + case ACTION_POINTER_DOWN: + /* Non primary pointer down */ + SDL_SendTouch(touchDeviceId, fingerId, SDL_TRUE, x, y, p); + break; + + case ACTION_MOVE: + if (!pointerFingerID) { + if (!separate_mouse_and_touch) { + Android_GetWindowCoordinates(x, y, &window_x, &window_y); + /* send moved event */ + SDL_SendMouseMotion(Android_Window, SDL_TOUCH_MOUSEID, 0, window_x, window_y); + } + } + SDL_SendTouchMotion(touchDeviceId, fingerId, x, y, p); + break; + + case ACTION_UP: + /* Primary pointer up */ + if (!separate_mouse_and_touch) { + /* send mouse up */ + SDL_SendMouseButton(Android_Window, SDL_TOUCH_MOUSEID, SDL_RELEASED, SDL_BUTTON_LEFT); + } + pointerFingerID = (SDL_FingerID) 0; + case ACTION_POINTER_UP: + /* Non primary pointer up */ + SDL_SendTouch(touchDeviceId, fingerId, SDL_FALSE, x, y, p); + break; + + default: + break; + } +} + +#endif /* SDL_VIDEO_DRIVER_ANDROID */ + +/* vi: set ts=4 sw=4 expandtab: */ |