[PATCH] Fix null pointer dereference when adding fist dive

[Anton Lundin]

If you have a blank history, we sugest now as time for the dive.

Signed-off-by: Anton Lundin <glance at acc.umu.se>
---
 qt-ui/maintab.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/qt-ui/maintab.cpp b/qt-ui/maintab.cpp
index b9a539f..382dbd7 100644
--- a/qt-ui/maintab.cpp
+++ b/qt-ui/maintab.cpp
@@ -241,9 +241,9 @@ void MainTab::updateDiveInfo(int dive)
 	UPDATE_TEXT(d, buddy);
 	UPDATE_TEMP(d, airtemp);
 	UPDATE_TEMP(d, watertemp);
-	ui->dateTimeEdit->setDateTime(QDateTime::fromTime_t(d->when - gettimezoneoffset()));
 	if (d) {
 		char buffer[256];
+		ui->dateTimeEdit->setDateTime(QDateTime::fromTime_t(d->when - gettimezoneoffset()));
 		print_gps_coordinates(buffer, sizeof buffer, d->latitude.udeg, d->longitude.udeg);
 		ui->coordinates->setText(buffer);
 		if (mainWindow() && mainWindow()->dive_list()->selectedTrips.count() == 1) {
@@ -331,6 +331,8 @@ void MainTab::updateDiveInfo(int dive)
 		cylindersModel->setDive(d);
 		weightModel->setDive(d);
 	} else {
+		/* Set time to now */
+		ui->dateTimeEdit->setDateTime(QDateTime::currentDateTime());
 		/* clear the fields */
 		ui->rating->setCurrentStars(0);
 		ui->coordinates->clear();
-- 
1.8.1.2