Move WeightModel to qt-models

One more step to make it easyer to port the app to Mobile.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-models/weightmodel.cpp

@@ -0,0 +1,174 @@
+#include "weightmodel.h"
+#include "dive.h"
+#include "gettextfromc.h"
+#include "metrics.h"
+#include "helpers.h"
+#include "weigthsysteminfomodel.h"
+
+WeightModel::WeightModel(QObject *parent) : CleanerTableModel(parent),
+	changed(false),
+	rows(0)
+{
+	//enum Column {REMOVE, TYPE, WEIGHT};
+	setHeaderDataStrings(QStringList() << tr("") << tr("Type") << tr("Weight"));
+}
+
+weightsystem_t *WeightModel::weightSystemAt(const QModelIndex &index)
+{
+	return &displayed_dive.weightsystem[index.row()];
+}
+
+void WeightModel::remove(const QModelIndex &index)
+{
+	if (index.column() != REMOVE) {
+		return;
+	}
+	beginRemoveRows(QModelIndex(), index.row(), index.row()); // yah, know, ugly.
+	rows--;
+	remove_weightsystem(&displayed_dive, index.row());
+	changed = true;
+	endRemoveRows();
+}
+
+void WeightModel::clear()
+{
+	if (rows > 0) {
+		beginRemoveRows(QModelIndex(), 0, rows - 1);
+		endRemoveRows();
+	}
+}
+
+QVariant WeightModel::data(const QModelIndex &index, int role) const
+{
+	QVariant ret;
+	if (!index.isValid() || index.row() >= MAX_WEIGHTSYSTEMS)
+		return ret;
+
+	weightsystem_t *ws = &displayed_dive.weightsystem[index.row()];
+
+	switch (role) {
+	case Qt::FontRole:
+		ret = defaultModelFont();
+		break;
+	case Qt::TextAlignmentRole:
+		ret = Qt::AlignCenter;
+		break;
+	case Qt::DisplayRole:
+	case Qt::EditRole:
+		switch (index.column()) {
+		case TYPE:
+			ret = gettextFromC::instance()->tr(ws->description);
+			break;
+		case WEIGHT:
+			ret = get_weight_string(ws->weight, true);
+			break;
+		}
+		break;
+	case Qt::DecorationRole:
+		if (index.column() == REMOVE)
+			ret = trashIcon();
+		break;
+	case Qt::SizeHintRole:
+		if (index.column() == REMOVE)
+			ret = trashIcon().size();
+		break;
+	case Qt::ToolTipRole:
+		if (index.column() == REMOVE)
+			ret = tr("Clicking here will remove this weight system.");
+		break;
+	}
+	return ret;
+}
+
+// this is our magic 'pass data in' function that allows the delegate to get
+// the data here without silly unit conversions;
+// so we only implement the two columns we care about
+void WeightModel::passInData(const QModelIndex &index, const QVariant &value)
+{
+	weightsystem_t *ws = &displayed_dive.weightsystem[index.row()];
+	if (index.column() == WEIGHT) {
+		if (ws->weight.grams != value.toInt()) {
+			ws->weight.grams = value.toInt();
+			dataChanged(index, index);
+		}
+	}
+}
+
+
+bool WeightModel::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+	QString vString = value.toString();
+	weightsystem_t *ws = &displayed_dive.weightsystem[index.row()];
+	switch (index.column()) {
+	case TYPE:
+		if (!value.isNull()) {
+			//TODO: C-function weigth_system_set_description ?
+			if (!ws->description || gettextFromC::instance()->tr(ws->description) != vString) {
+				// loop over translations to see if one matches
+				int i = -1;
+				while (ws_info[++i].name) {
+					if (gettextFromC::instance()->tr(ws_info[i].name) == vString) {
+						ws->description = copy_string(ws_info[i].name);
+						break;
+					}
+				}
+				if (ws_info[i].name == NULL) // didn't find a match
+					ws->description = strdup(vString.toUtf8().constData());
+				changed = true;
+			}
+		}
+		break;
+	case WEIGHT:
+		if (CHANGED()) {
+			ws->weight = string_to_weight(vString.toUtf8().data());
+			// now update the ws_info
+			changed = true;
+			WSInfoModel *wsim = WSInfoModel::instance();
+			QModelIndexList matches = wsim->match(wsim->index(0, 0), Qt::DisplayRole, gettextFromC::instance()->tr(ws->description));
+			if (!matches.isEmpty())
+				wsim->setData(wsim->index(matches.first().row(), WSInfoModel::GR), ws->weight.grams);
+		}
+		break;
+	}
+	dataChanged(index, index);
+	return true;
+}
+
+Qt::ItemFlags WeightModel::flags(const QModelIndex &index) const
+{
+	if (index.column() == REMOVE)
+		return Qt::ItemIsEnabled;
+	return QAbstractItemModel::flags(index) | Qt::ItemIsEditable;
+}
+
+int WeightModel::rowCount(const QModelIndex &parent) const
+{
+	return rows;
+}
+
+void WeightModel::add()
+{
+	if (rows >= MAX_WEIGHTSYSTEMS)
+		return;
+
+	int row = rows;
+	beginInsertRows(QModelIndex(), row, row);
+	rows++;
+	changed = true;
+	endInsertRows();
+}
+
+void WeightModel::updateDive()
+{
+	clear();
+	rows = 0;
+	for (int i = 0; i < MAX_WEIGHTSYSTEMS; i++) {
+		if (!weightsystem_none(&displayed_dive.weightsystem[i])) {
+			rows = i + 1;
+		}
+	}
+	if (rows > 0) {
+		beginInsertRows(QModelIndex(), 0, rows - 1);
+		endInsertRows();
+	}
+}