Add ConnectionListModel

We'll use that to do a better job of showing the connection used when
talking to a dive computer.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

core/btdiscovery.cpp

@@ -9,6 +9,47 @@ extern QMap<QString, dc_descriptor_t *> descriptorLookup;
 
 BTDiscovery *BTDiscovery::m_instance = NULL;
 
+ConnectionListModel::ConnectionListModel(QObject *parent) :
+	QAbstractListModel(parent)
+{
+}
+
+QHash <int, QByteArray> ConnectionListModel::roleNames() const
+{
+	QHash<int, QByteArray> roles;
+	roles[AddressRole] = "address";
+	return roles;
+}
+
+QVariant ConnectionListModel::data(const QModelIndex &index, int role) const
+{
+	if (index.row() < 0 || index.row() >= m_addresses.count())
+		return QVariant();
+	if (role != AddressRole)
+		return QVariant();
+	return m_addresses[index.row()];
+}
+
+QString ConnectionListModel::address(int idx) const
+{
+	if (idx < 0 || idx >> m_addresses.count())
+		return QString();
+	return m_addresses[idx];
+}
+
+int ConnectionListModel::rowCount(const QModelIndex &parent) const
+{
+	Q_UNUSED(parent)
+	return m_addresses.count();
+}
+
+void ConnectionListModel::addAddress(const QString address)
+{
+	beginInsertRows(QModelIndex(), rowCount(), rowCount());
+	m_addresses.append(address);
+	endInsertRows();
+}
+
 static dc_descriptor_t *getDeviceType(QString btName)
 // central function to convert a BT name to a Subsurface known vendor/model pair
 {

core/btdiscovery.h

@@ -5,6 +5,7 @@
 #include <QObject>
 #include <QString>
 #include <QLoggingCategory>
+#include <QAbstractListModel>
 #if defined(BT_SUPPORT)
 #include <QBluetoothLocalDevice>
 #include <QBluetoothDeviceDiscoveryAgent>
@@ -17,6 +18,22 @@
 #include <QAndroidJniEnvironment>
 #endif
 
+class ConnectionListModel : public QAbstractListModel {
+	Q_OBJECT
+public:
+	enum CLMRole {
+		AddressRole = Qt::UserRole + 1
+	};
+	ConnectionListModel(QObject *parent = 0);
+	QHash<int, QByteArray> roleNames() const;
+	QVariant data(const QModelIndex &index, int role = AddressRole) const;
+	QString address(int idx) const;
+	int rowCount(const QModelIndex &parent = QModelIndex()) const;
+	void addAddress(const QString address);
+private:
+	QStringList m_addresses;
+};
+
 class BTDiscovery : public QObject {
 	Q_OBJECT