Feature to show or hide heart rate graph

Adds new push button "HR" to the button bar on the dive profile to
toggle display of heart rate.

TODO: New icon for the heart rate button is needed.

Fixes #485

Signed-off-by: Lakshman Anumolu <acrlakshman@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/qt-ui/profile/diveprofileitem.cpp b/qt-ui/profile/diveprofileitem.cpp
index 2ffc7ec02..51d6a3f79 100644
--- a/qt-ui/profile/diveprofileitem.cpp
+++ b/qt-ui/profile/diveprofileitem.cpp
@@ -221,6 +221,7 @@ DiveHeartrateItem::DiveHeartrateItem()
 	pen.setCosmetic(true);
 	pen.setWidth(1);
 	setPen(pen);
+	visible = true;
 }
 
 void DiveHeartrateItem::modelDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
@@ -297,6 +298,27 @@ void DiveHeartrateItem::paint(QPainter *painter, const QStyleOptionGraphicsItem
 	painter->drawPolyline(polygon());
 }
 
+void DiveHeartrateItem::preferencesChanged()
+{
+	QSettings s;
+	s.beginGroup("TecDetails");
+	setVisible(s.value(visibilityKey).toBool());
+	if (s.value(visibilityKey).toBool())
+		visible = true;
+	else
+		visible = false;
+}
+
+void DiveHeartrateItem::setVisibilitySettingsKey(const QString &key)
+{
+	visibilityKey = key;
+}
+
+bool DiveHeartrateItem::isVisible()
+{
+	return visible == true;
+}
+
 DiveTemperatureItem::DiveTemperatureItem()
 {
 	QPen pen;