1 /*

     2     SDL - Simple DirectMedia Layer

     3     Copyright (C) 1997-2011 Sam Lantinga

     4 

     5     This library is free software; you can redistribute it and/or

     6     modify it under the terms of the GNU Lesser General Public

     7     License as published by the Free Software Foundation; either

     8     version 2.1 of the License, or (at your option) any later version.

     9 

    10     This library is distributed in the hope that it will be useful,

    11     but WITHOUT ANY WARRANTY; without even the implied warranty of

    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13     Lesser General Public License for more details.

    14 

    15     You should have received a copy of the GNU Lesser General Public

    16     License along with this library; if not, write to the Free Software

    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    18 

    19     Sam Lantinga

    20     slouken@libsdl.org

    21 */

    22 #include "SDL_config.h"

    23 

    24 #include <android/log.h>

    25 

    26 #include "SDL_events.h"

    27 #include "../../events/SDL_touch_c.h"

    28 

    29 #include "SDL_androidtouch.h"

    30 

    31 

    32 #define ACTION_DOWN 0

    33 #define ACTION_UP 1

    34 #define ACTION_MOVE 2

    35 #define ACTION_CANCEL 3

    36 #define ACTION_OUTSIDE 4

    37 #define ACTION_POINTER_DOWN 5

    38 #define ACTION_POINTER_UP 6

    39 

    40 

    41 void Android_OnTouch(int action, int pointerId, float x, float y, float p)

    42 {

    43     if (!Android_Window) {

    44         return;

    45     }

    46 

    47     //The first event will provide the x, y and pressure max values,

    48     if(!SDL_GetTouch(1)){

    49         SDL_Touch touch;

    50         touch.id = 1;

    51         touch.x_min = 0;

    52         touch.x_max = x;

    53         touch.native_xres = touch.x_max - touch.x_min;

    54         touch.y_min = 0;

    55         touch.y_max = y;

    56         touch.native_yres = touch.y_max - touch.y_min;

    57         touch.pressure_min = 0;

    58         touch.pressure_max = p;

    59         touch.native_pressureres = touch.pressure_max - touch.pressure_min;

    60 

    61         if(SDL_AddTouch(&touch, "") < 0) return;

    62     }

    63 

    64 

    65     switch(action){

    66         case ACTION_DOWN:

    67         case ACTION_POINTER_DOWN:

    68             SDL_SetTouchFocus(pointerId, Android_Window);

    69             SDL_SendFingerDown(1, pointerId, SDL_TRUE, x, y, p);

    70             break;

    71         case ACTION_CANCEL:

    72         case ACTION_POINTER_UP:

    73         case ACTION_UP:

    74             SDL_SendFingerDown(1, pointerId, SDL_FALSE, x, y, p);

    75             break;

    76         case ACTION_MOVE: 

    77             SDL_SendTouchMotion(1, pointerId, 0, x, y, p);

    78             break;

    79         case ACTION_OUTSIDE:

    80             break;

    81     }

    82 }

    83 

    84 /* vi: set ts=4 sw=4 expandtab: */