4 files changed, 19 insertions, 3 deletions
diff --git a/qt-ui/mainwindow.cpp b/qt-ui/mainwindow.cpp
index 23c972741..1f3d7def9 100644
--- a/qt-ui/mainwindow.cpp
+++ b/qt-ui/mainwindow.cpp
@@ -564,6 +564,13 @@ bool MainWindow::askSaveChanges()
 	else							\
 		prefs.field = default_prefs.field
 
+#define GET_TXT(name, field)					\
+	v = s.value(QString(name));				\
+	if (v.isValid())					\
+		prefs.field = strdup(v.toString().toUtf8().constData());			\
+	else							\
+		prefs.field = default_prefs.field
+
 
 void MainWindow::initialUiSetup()
 {
@@ -623,7 +630,8 @@ void MainWindow::readSettings()
 	GET_BOOL("calcalltissues", calc_all_tissues);
 	GET_INT("gflow", gflow);
 	GET_INT("gfhigh", gfhigh);
-	set_gf(prefs.gflow, prefs.gfhigh);
+	GET_BOOL("gf_low_at_maxdepth", gf_low_at_maxdepth);
+	set_gf(prefs.gflow, prefs.gfhigh, prefs.gf_low_at_maxdepth);
 	GET_BOOL("show_sac", show_sac);
 	s.endGroup();
 
diff --git a/qt-ui/preferences.cpp b/qt-ui/preferences.cpp
index f638d9d7d..0249c894f 100644
--- a/qt-ui/preferences.cpp
+++ b/qt-ui/preferences.cpp
@@ -55,6 +55,7 @@ void PreferencesDialog::setUiFromPrefs()
 
 	ui.gflow->setValue(prefs.gflow);
 	ui.gfhigh->setValue(prefs.gfhigh);
+	ui.gf_low_at_maxdepth->setChecked(prefs.gf_low_at_maxdepth);
 
 	// units
 	if (prefs.unit_system == METRIC)
@@ -111,7 +112,7 @@ void PreferencesDialog::syncSettings()
 	s.setValue("pn2threshold", ui.pn2Threshold->value());
 	SB("ead", ui.ead_end_eadd);
 	SB("mod", ui.mod);
-	s.setValue("modppo2", ui.maxppo2->value());
+	s.setValue("modppO2", ui.maxppo2->value());
 	SB("dcceiling", ui.dc_reported_ceiling);
 	SB("redceiling", ui.red_ceiling);
 	SB("calcceiling", ui.calculated_ceiling);
@@ -120,6 +121,7 @@ void PreferencesDialog::syncSettings()
 	SB("calcalltissues", ui.all_tissues);
 	s.setValue("gflow", ui.gflow->value());
 	s.setValue("gfhigh", ui.gfhigh->value());
+	SB("gf_low_at_maxdepth", ui.gf_low_at_maxdepth);
 	SB("show_sac", ui.show_sac);
 	s.endGroup();
 
diff --git a/qt-ui/preferences.h b/qt-ui/preferences.h
index 1cd3d9096..fb0fcbc94 100644
--- a/qt-ui/preferences.h
+++ b/qt-ui/preferences.h
@@ -26,7 +26,6 @@ public slots:
 private:
 	explicit PreferencesDialog(QWidget* parent = 0, Qt::WindowFlags f = 0);
 	void setUiFromPrefs();
-	void setUIFromSettings();
 	Ui::PreferencesDialog ui;
 	struct preferences oldPrefs;
 };
diff --git a/qt-ui/preferences.ui b/qt-ui/preferences.ui
index 7e071face..581670c91 100644
--- a/qt-ui/preferences.ui
+++ b/qt-ui/preferences.ui
@@ -763,6 +763,13 @@
             <item row="1" column="1">
              <widget class="QSpinBox" name="gfhigh"/>
             </item>
+            <item row="2" column="0" colspan="2">
+             <widget class="QCheckBox" name="gf_low_at_maxdepth">
+              <property name="text">
+               <string>GFLow at max depth</string>
+              </property>
+             </widget>
+            </item>
            </layout>
           </widget>
          </item>