profile: explicitly update profile items

Instead of listening to the dive-data-model changed and
axis changed signals, update the profile items explicitly
once per plot() call. This avoids double replotting of the
dive items.

The old code had at least two replots per plot() call:
one after profileYAxis()->setMaximum() and one after
dataModel->emitDataChanged().

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

1 files changed, 0 insertions, 5 deletions

diff --git a/profile-widget/diveprofileitem.cpp b/profile-widget/diveprofileitem.cpp
index 54acee86b..b91b7ef92 100644
--- a/profile-widget/diveprofileitem.cpp
+++ b/profile-widget/diveprofileitem.cpp
@@ -17,10 +17,6 @@ AbstractProfilePolygonItem::AbstractProfilePolygonItem(const DivePlotDataModel &
 	hAxis(horizontal), vAxis(vertical), dataModel(model), hDataColumn(hColumn), vDataColumn(vColumn)
 {
 	setCacheMode(DeviceCoordinateCache);
-	connect(&dataModel, &DivePlotDataModel::dataChanged, this, &AbstractProfilePolygonItem::modelDataChanged);
-	connect(&hAxis, &DiveCartesianAxis::sizeChanged, this, &AbstractProfilePolygonItem::replot);
-	connect(&vAxis, &DiveCartesianAxis::sizeChanged, this, &AbstractProfilePolygonItem::replot);
-	connect(&vAxis, &DiveCartesianAxis::maxChanged, this, &AbstractProfilePolygonItem::replot);
 }
 
 void AbstractProfilePolygonItem::clear()
@@ -880,7 +876,6 @@ void DiveReportedCeiling::paint(QPainter *painter, const QStyleOptionGraphicsIte
 
 void PartialPressureGasItem::modelDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
 {
-	//AbstractProfilePolygonItem::modelDataChanged();
 	if (!shouldCalculateStuff(topLeft, bottomRight))
 		return;