Read basic details from dive computer

Added classes for reading data from dive computer. This is
at the basic level and I will expand it as I go along.

Signed-off-by: Joseph W. Joshua <joejoshw@gmail.com>
Signed-off-by: Thiago Macieira <thiago@macieira.org>

qt-ui/configuredivecomputer.h

@@ -0,0 +1,58 @@
+#ifndef CONFIGUREDIVECOMPUTER_H
+#define CONFIGUREDIVECOMPUTER_H
+
+#include <QObject>
+#include <QThread>
+#include "libdivecomputer.h"
+
+class ReadSettingsThread : public QThread {
+	Q_OBJECT
+public:
+	ReadSettingsThread(QObject *parent, device_data_t *data);
+	virtual void run();
+	QString result;
+	QString lastError;
+signals:
+	void error(QString err);
+private:
+	device_data_t *data;
+};
+
+class ConfigureDiveComputer : public QObject
+{
+	Q_OBJECT
+public:
+	explicit ConfigureDiveComputer(QObject *parent = 0);
+	void readSettings(device_data_t *data);
+
+	enum states {
+			INITIAL,
+			READING,
+			WRITING,
+			CANCELLING,
+			CANCELLED,
+			ERROR,
+			DONE,
+		};
+
+	QString lastError;
+	states currentState;
+signals:
+	void deviceSettings(QString settings);
+	void message(QString msg);
+	void error(QString err);
+	void readFinished();
+	void writeFinished();
+	void stateChanged(states newState);
+private:
+	ReadSettingsThread *readThread;
+	void setState(states newState);
+
+
+	void readHWSettings(device_data_t *data);
+private slots:
+	void readThreadFinished();
+	void setError(QString err);
+};
+
+#endif // CONFIGUREDIVECOMPUTER_H