diff options
Diffstat (limited to 'Source/external/SDL2/src/video/android/SDL_androidmouse.c')
| -rw-r--r-- | Source/external/SDL2/src/video/android/SDL_androidmouse.c | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/Source/external/SDL2/src/video/android/SDL_androidmouse.c b/Source/external/SDL2/src/video/android/SDL_androidmouse.c new file mode 100644 index 0000000..037b453 --- /dev/null +++ b/Source/external/SDL2/src/video/android/SDL_androidmouse.c @@ -0,0 +1,266 @@ +/* + 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 "SDL_androidmouse.h" + +#include "SDL_events.h" +#include "../../events/SDL_mouse_c.h" + +#include "../../core/android/SDL_android.h" + +/* See Android's MotionEvent class for constants */ +#define ACTION_DOWN 0 +#define ACTION_UP 1 +#define ACTION_MOVE 2 +#define ACTION_HOVER_MOVE 7 +#define ACTION_SCROLL 8 +#define BUTTON_PRIMARY 1 +#define BUTTON_SECONDARY 2 +#define BUTTON_TERTIARY 4 +#define BUTTON_BACK 8 +#define BUTTON_FORWARD 16 + +typedef struct +{ + int custom_cursor; + int system_cursor; + +} SDL_AndroidCursorData; + +/* Last known Android mouse button state (includes all buttons) */ +static int last_state; + +/* Blank cursor */ +static SDL_Cursor *empty_cursor; + +static SDL_Cursor * +Android_WrapCursor(int custom_cursor, int system_cursor) +{ + SDL_Cursor *cursor; + + cursor = SDL_calloc(1, sizeof(*cursor)); + if (cursor) { + SDL_AndroidCursorData *data = (SDL_AndroidCursorData*)SDL_calloc(1, sizeof(*data)); + if (data) { + data->custom_cursor = custom_cursor; + data->system_cursor = system_cursor; + cursor->driverdata = data; + } else { + SDL_free(cursor); + cursor = NULL; + SDL_OutOfMemory(); + } + } else { + SDL_OutOfMemory(); + } + + return cursor; +} + +static SDL_Cursor * +Android_CreateDefaultCursor() +{ + return Android_WrapCursor(0, SDL_SYSTEM_CURSOR_ARROW); +} + +static SDL_Cursor * +Android_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y) +{ + int custom_cursor; + SDL_Surface *converted; + + converted = SDL_ConvertSurfaceFormat(surface, SDL_PIXELFORMAT_ARGB8888, 0); + if (!converted) { + return NULL; + } + custom_cursor = Android_JNI_CreateCustomCursor(converted, hot_x, hot_y); + SDL_FreeSurface(converted); + if (!custom_cursor) { + SDL_Unsupported(); + return NULL; + } + return Android_WrapCursor(custom_cursor, 0); +} + +static SDL_Cursor * +Android_CreateSystemCursor(SDL_SystemCursor id) +{ + return Android_WrapCursor(0, id); +} + +static void +Android_FreeCursor(SDL_Cursor * cursor) +{ + SDL_free(cursor->driverdata); + SDL_free(cursor); +} + +static SDL_Cursor * +Android_CreateEmptyCursor() +{ + if (!empty_cursor) { + SDL_Surface *empty_surface = SDL_CreateRGBSurfaceWithFormat(0, 1, 1, 32, SDL_PIXELFORMAT_ARGB8888); + if (empty_surface) { + SDL_memset(empty_surface->pixels, 0, empty_surface->h * empty_surface->pitch); + empty_cursor = Android_CreateCursor(empty_surface, 0, 0); + SDL_FreeSurface(empty_surface); + } + } + return empty_cursor; +} + +static void +Android_DestroyEmptyCursor() +{ + if (empty_cursor) { + Android_FreeCursor(empty_cursor); + empty_cursor = NULL; + } +} + +static int +Android_ShowCursor(SDL_Cursor * cursor) +{ + if (!cursor) { + cursor = Android_CreateEmptyCursor(); + } + if (cursor) { + SDL_AndroidCursorData *data = (SDL_AndroidCursorData*)cursor->driverdata; + if (data->custom_cursor) { + if (!Android_JNI_SetCustomCursor(data->custom_cursor)) { + return SDL_Unsupported(); + } + } else { + if (!Android_JNI_SetSystemCursor(data->system_cursor)) { + return SDL_Unsupported(); + } + } + return 0; + } else { + /* SDL error set inside Android_CreateEmptyCursor() */ + return -1; + } +} + +static int +Android_SetRelativeMouseMode(SDL_bool enabled) +{ + if (!Android_JNI_SupportsRelativeMouse()) { + return SDL_Unsupported(); + } + + if (!Android_JNI_SetRelativeMouseEnabled(enabled)) { + return SDL_Unsupported(); + } + + return 0; +} + +void +Android_InitMouse(void) +{ + SDL_Mouse *mouse = SDL_GetMouse(); + + mouse->CreateCursor = Android_CreateCursor; + mouse->CreateSystemCursor = Android_CreateSystemCursor; + mouse->ShowCursor = Android_ShowCursor; + mouse->FreeCursor = Android_FreeCursor; + mouse->SetRelativeMouseMode = Android_SetRelativeMouseMode; + + SDL_SetDefaultCursor(Android_CreateDefaultCursor()); + + last_state = 0; +} + +void +Android_QuitMouse(void) +{ + Android_DestroyEmptyCursor(); +} + +/* Translate Android mouse button state to SDL mouse button */ +static Uint8 +TranslateButton(int state) +{ + if (state & BUTTON_PRIMARY) { + return SDL_BUTTON_LEFT; + } else if (state & BUTTON_SECONDARY) { + return SDL_BUTTON_RIGHT; + } else if (state & BUTTON_TERTIARY) { + return SDL_BUTTON_MIDDLE; + } else if (state & BUTTON_FORWARD) { + return SDL_BUTTON_X1; + } else if (state & BUTTON_BACK) { + return SDL_BUTTON_X2; + } else { + return 0; + } +} + +void +Android_OnMouse(int state, int action, float x, float y, SDL_bool relative) +{ + int changes; + Uint8 button; + + if (!Android_Window) { + return; + } + + switch(action) { + case ACTION_DOWN: + changes = state & ~last_state; + button = TranslateButton(changes); + last_state = state; + SDL_SendMouseMotion(Android_Window, 0, relative, x, y); + SDL_SendMouseButton(Android_Window, 0, SDL_PRESSED, button); + break; + + case ACTION_UP: + changes = last_state & ~state; + button = TranslateButton(changes); + last_state = state; + SDL_SendMouseMotion(Android_Window, 0, relative, x, y); + SDL_SendMouseButton(Android_Window, 0, SDL_RELEASED, button); + break; + + case ACTION_MOVE: + case ACTION_HOVER_MOVE: + SDL_SendMouseMotion(Android_Window, 0, relative, x, y); + break; + + case ACTION_SCROLL: + SDL_SendMouseWheel(Android_Window, 0, x, y, SDL_MOUSEWHEEL_NORMAL); + break; + + default: + break; + } +} + +#endif /* SDL_VIDEO_DRIVER_ANDROID */ + +/* vi: set ts=4 sw=4 expandtab: */ + |