a lot!!! of changes

added main menu
added debug display
many debug widgets for plotting live data
worked on android live sensors
added offline-data sensor feeding
some dummy data sensors
worked on the map display
added ui debug for grid-points, particles and weights
added a cool dude to display the estimation
added real filtering based on the Indoor components
c++11 fixes for android compilation
online and offline filtering support
new resampling technique for testing
map loading via dialog

sensors/linux/WiFiSensorLinux.h

@@ -1,15 +1,38 @@
 #ifndef WIFISENSORLINUX_H
 #define WIFISENSORLINUX_H
 
+#ifdef LINUX_DESKTOP
+
 #include "../WiFiSensor.h"
+#include <thread>
+
+extern "C" {
+	#include "WiFiSensorLinuxC.h"
+}
 
 class WiFiSensorLinux : public WiFiSensor {
 
+private:
+
+	std::vector<uint32_t> freqs = {2412, 2417, 2422, 2427, 2432, 2437, 2442, 2447, 2452, 2457, 2462, 2467, 2472};
+	bool running;
+	std::thread thread;
+
+	int ifIdx;
+	wifiState state;
 
 private:
 
 	WiFiSensorLinux() {
 
+		ifIdx = wifiGetInterfaceIndex("wlp3s0");
+		if (ifIdx == 0) {throw Exception("wifi interface not found!");}
+
+		int ret = wifiGetDriver(&state);
+		if (ret != 0) {throw Exception("wifi driver not found!");}
+
+		std::cout << "if: " << ifIdx << std::endl;
+
 	}
 
 public:
@@ -21,13 +44,59 @@ public:
 	}
 
 	void start() override {
-
+		running = true;
+		thread = std::thread(&WiFiSensorLinux::run, this);
 	}
 
 	void stop() override {
+		running = false;
+		thread.join();
+	}
+
+private:
+
+	void run() {
+
+		wifiScanResult result;
+		wifiChannels channels;
+		channels.frequencies = freqs.data();
+		channels.numUsed = freqs.size();
+
+
+
+		while(running) {
+
+			int ret;
+
+			// trigger a scan
+			ret = wifiTriggerScan(&state, ifIdx, &channels);
+			if (ret != 0) {
+				std::this_thread::sleep_for(std::chrono::milliseconds(100));
+				continue;
+			}
+
+			// fetch scan result (blocks)
+			ret = wifiGetScanResult(&state, ifIdx, &result);
+
+			// convert to our format
+			const Timestamp ts = Timestamp::fromUnixTime();
+			WiFiMeasurements data;
+
+			for (int i = 0; i < result.numUsed; ++i) {
+				const std::string mac = result.entries[i].mac;
+				const int rssi = result.entries[i].rssi;
+				data.entries.push_back(WiFiMeasurement(AccessPoint(mac), rssi));
+			}
+
+			// and call the listeners
+			informListeners(ts, data);
+
+		}
 
 	}
 
 };
 
+#endif
+
 #endif // WIFISENSORLINUX_H