Connect cylinders entered in planner with the gases available

Now the gases for which we have cylinders are offered in the gas selection
list and correctly recognized and added for the plan.

Still tons of work to be done to make this work the way it is designed,
but we are getting closer.

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

qt-ui/diveplanner.cpp

@@ -32,19 +32,25 @@
 
 #define M_OR_FT(_m,_f) ((prefs.units.length == units::METERS) ? ((_m) * 1000) : ((_f) * 304.8))
 
-QStringListModel *airTypes() {
+QStringListModel *gasSelectionModel() {
 	static QStringListModel *self = new QStringListModel(QStringList()
-		<< QObject::tr("AIR")
-		<< QObject::tr("EAN32")
-		<< QObject::tr("EAN36"));
+		<< QObject::tr("AIR"));
+	self->setStringList(DivePlannerPointsModel::instance()->getGasList());
 	return self;
 }
 
-QString strForAir(const divedatapoint& p) {
-	return is_air(p.o2, p.he) ? QObject::tr("AIR")
-		: p.o2 == 320 ? QObject::tr("EAN32")
-		: p.o2 == 360 ? QObject::tr("EAN36")
-		: QObject::tr("Choose Gas");
+QString gasToStr(const int o2Permille, const int hePermille) {
+	uint o2 = (o2Permille + 5) / 10, he = (hePermille + 5) / 10;
+	QString result = is_air(o2Permille, hePermille) ? QObject::tr("AIR")
+							: he == 0 ? QString("EAN%1").arg(o2, 2, 10, QChar('0'))
+								  : QString("%1/%2").arg(o2).arg(he);
+	qDebug() << o2 << he << result;
+	return result;
+}
+
+QString dpGasToStr(const divedatapoint& p)
+{
+	return gasToStr(p.o2, p.he);
 }
 
 QColor getColor(const color_indice_t i)
@@ -170,7 +176,7 @@ DivePlannerGraphics::DivePlannerGraphics(QWidget* parent): QGraphicsView(parent)
 	// Prepare the stuff for the gas-choices.
 	gasListView = new QListView();
 	gasListView->setWindowFlags(Qt::Popup);
-	gasListView->setModel(airTypes());
+	gasListView->setModel(gasSelectionModel());
 	gasListView->hide();
 	gasListView->installEventFilter(this);
 
@@ -446,11 +452,31 @@ void DivePlannerPointsModel::loadFromDive(dive* d)
 	}
 }
 
+QStringList& DivePlannerPointsModel::getGasList()
+{
+	static QStringList list;
+	list.clear();
+	if (!stagingDive) {
+		list.push_back(tr("AIR"));
+	} else {
+		for (int i = 0; i < MAX_CYLINDERS; i++) {
+			cylinder_t *cyl = &stagingDive->cylinder[i];
+			if (cylinder_nodata(cyl))
+				break;
+			list.push_back(gasToStr(cyl->gasmix.o2.permille, cyl->gasmix.he.permille));
+		}
+	}
+	qDebug() << list;
+	return list;
+}
+
 void DivePlannerGraphics::prepareSelectGas()
 {
+	QStringListModel *model = qobject_cast<QStringListModel*>(gasListView->model());
 	currentGasChoice = static_cast<Button*>(sender());
 	QPoint c = QCursor::pos();
 	gasListView->setGeometry(c.x(), c.y(), 150, 100);
+	model->setStringList(DivePlannerPointsModel::instance()->getGasList());
 	gasListView->show();
 }
 
@@ -459,6 +485,7 @@ void DivePlannerGraphics::selectGas(const QModelIndex& index)
 	QString gasSelected = gasListView->model()->data(index, Qt::DisplayRole).toString();
 	int idx = gases.indexOf(currentGasChoice);
 	plannerModel->setData(plannerModel->index(idx, DivePlannerPointsModel::GAS), gasSelected);
+	qDebug() << "gas selected:" << gasSelected;
 	gasListView->hide();
 }
 
@@ -493,7 +520,7 @@ void DivePlannerGraphics::drawProfile()
 		QLineF line(p1, p2);
 		QPointF pos = line.pointAt(0.5);
 		gases[i]->setPos(pos);
-		gases[i]->setText(strForAir(plannerModel->at(i-1)));
+		gases[i]->setText(dpGasToStr(plannerModel->at(i-1)));
 	}
 
 	// (re-) create the profile with different colors for segments that were
@@ -980,7 +1007,7 @@ QVariant DivePlannerPointsModel::data(const QModelIndex& index, int role) const
 		case GAS:
 			if (index.row() > 0) {
 				p = divepoints.at(index.row() - 1);
-				return strForAir(p);
+				return dpGasToStr(p);
 			}
 			return "";
 		}

qt-ui/diveplanner.h

@@ -14,7 +14,7 @@ class QStringListModel;
 class QModelIndex;
 
 // Return a Model containing the air types.
-QStringListModel *airTypes();
+QStringListModel *gasSelectionModel();
 
 class DivePlannerPointsModel : public QAbstractTableModel{
 	Q_OBJECT
@@ -41,6 +41,7 @@ public:
 	divedatapoint at(int row);
 	int size();
 	struct diveplan getDiveplan();
+	QStringList &getGasList();
 public slots:
 	int addStop(int meters = 0, int minutes = 0, int o2 = 0, int he = 0, int ccpoint = 0 );
 	void addCylinder_clicked();

qt-ui/modeldelegates.cpp

@@ -307,7 +307,7 @@ void AirTypesDelegate::setModelData(QWidget* editor, QAbstractItemModel* model,
 	model->setData(index, QVariant(combo->currentText()));
 }
 
-AirTypesDelegate::AirTypesDelegate(QObject* parent) : ComboBoxDelegate(airTypes(), parent)
+AirTypesDelegate::AirTypesDelegate(QObject* parent) : ComboBoxDelegate(gasSelectionModel(), parent)
 {
 }