Dive d/l selection UI: Add method to remove unused dives

This tries to relete from the dive list the dives that shouldn't be
imported.

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

qt-ui/downloadfromdivecomputer.cpp

@@ -405,6 +405,9 @@ void DownloadFromDCWidget::onDownloadThreadFinished()
 
 void DownloadFromDCWidget::on_ok_clicked()
 {
+	// remove all unselected dives from the dive-list.
+	diveImportedModel->removeUnused();
+
 	int uniqId, idx;
 	// remember the last downloaded dive (on most dive computers this will be the chronologically
 	// first new dive) and select it again after processing all the dives
@@ -573,3 +576,18 @@ void DiveImportedModel::setImportedDivesIndexes(int first, int last)
 	memset(checkStates, true, last-first);
 	endInsertRows();
 }
+
+void DiveImportedModel::removeUnused() {
+	beginRemoveRows(QModelIndex(), 0, rowCount()-1);
+	endRemoveRows();
+
+	for(int i = lastIndex; i >= firstIndex; i-- ){
+		if(!checkStates[firstIndex - i]) {
+			delete_single_dive(i);
+		}
+	}
+
+	lastIndex = 0;
+	firstIndex = 0;
+	delete[] checkStates;
+}

qt-ui/downloadfromdivecomputer.h

@@ -36,6 +36,7 @@ public:
 	bool setData(const QModelIndex &index, const QVariant &value, int role);
 	void setImportedDivesIndexes(int first, int last);
 	Qt::ItemFlags flags(const QModelIndex &index) const;
+	void removeUnused();
 private:
 	int firstIndex;
 	int lastIndex;