| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2016 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 |
| SeparateEventsHintWatcher(void *userdata, const char *name, |
| const char *oldValue, const char *newValue) |
| { |
| jclass mActivityClass = Android_JNI_GetActivityClass(); |
| JNIEnv *env = Android_JNI_GetEnv(); |
| jfieldID fid = (*env)->GetStaticFieldID(env, mActivityClass, "mSeparateMouseAndTouch", "Z"); |
| |
| separate_mouse_and_touch = (newValue && (SDL_strcmp(newValue, "1") == 0)); |
| (*env)->SetStaticBooleanField(env, mActivityClass, fid, separate_mouse_and_touch ? JNI_TRUE : JNI_FALSE); |
| } |
| |
| 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: */ |