vrpn_Android.h

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#ifndef VRPN_ANDROID_H
#define VRPN_ANDROID_H
 
#include <jni.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <string>
#include <string.h>
 
#include "vrpn_Types.h"
 
#ifndef VRPN_BUTTON_H
#include "vrpn_Button.h"
#define VRPN_BUTTON_H
#endif
 
#ifndef VRPN_ANALOG_H
#include "vrpn_Analog.h"
#define VRPN_ANALOG_H
#endif
 
/*
 * This is an Android server implementation.  It has as members a vrpn_Button_Server
 * and some number of vrpn_Analog_Servers, as determined by the Java side.  This 
 * implementation also has vrpn_Button_Remote and vrpn_Analog_Remote clients for 
 * the sole purpose of testing.  All data from the Android is represented here
 * as either Analogs or Buttons.
 *
 * All interaction between this class and the Java side are handled by the jni layer.
 *
 * It's worth noting that it is possible to pipe stdout to the Android log - directions
 * for doing so are in the manual for this project - and all output is in the form of:
 * fprintf(stderr, "..."), which we've found to be more reliable than other methods,
 * including fprintf(stdout, "...").
 */
 
 
class vrpn_Android_Server
{
public:

    vrpn_Android_Server(vrpn_int32 num_analogs, vrpn_int32 * analog_sizes, vrpn_int32 num_buttons, vrpn_int32 port);
    
    ~vrpn_Android_Server();
    
    void mainloop();

    void set_analog(vrpn_int32 analog_id, vrpn_int32 channel, vrpn_float64 val);
    
    void set_button(vrpn_int32 button_id, vrpn_int32 state);
    
    void report_analog_chg(vrpn_int32 analog_id);
    
private:

    void initialize(vrpn_int32 num_analogs, vrpn_int32 * analog_sizes, vrpn_int32 num_buttons);
 
    // Names of the member servers.  Only used by the local clients
    const char  * ANALOG_SERVER_NAME;       // with no id number; those are formed automatically
    const char  * BUTTON_SERVER_NAME;       // uses id 0, since there is only one button server
    
    vrpn_int32 num_analogs;                 // Number of vrpn_Analog_Servers
    vrpn_int32 * analog_sizes;              // Array of numbers of channels in the analog servers
 
    vrpn_Analog_Server ** analog_server;    // handles multi-touch x and y as well as any sliders, dials, etc
    vrpn_Button_Server  * button_server;
    
    vrpn_Analog_Remote ** analog_client;
    vrpn_Button_Remote  * button_client;
    
    vrpn_Connection     * connection;
    
    vrpn_int32 port;
};
 
#endif