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profile: don't recalculate plot-info when zooming / scrolling

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This is a potentially expensive operation (e.g. interpolation of
pressure values), so don't recalculate the plot data for every
redraw.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-10-22 18:23:15 +02:00 • committed by Dirk Hohndel
parent 6dfc2da8d0
commit 71629521b7
3 changed files with 10 additions and 7 deletions
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5
profile-widget/profilescene.cpp
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@ -324,7 +324,7 @@ bool ProfileScene::isPointOutOfBoundaries(const QPointF &point) const
}
void ProfileScene::plotDive(const struct dive *dIn, int dcIn, DivePlannerPointsModel *plannerModel,
bool inPlanner, bool instant, bool calcMax, double zoom, double zoomedPosition)
bool inPlanner, bool instant, bool keepPlotInfo, bool calcMax, double zoom, double zoomedPosition)
{
d = dIn;
dc = dcIn;
@ -363,7 +363,8 @@ void ProfileScene::plotDive(const struct dive *dIn, int dcIn, DivePlannerPointsM
* shown.
* create_plot_info_new() automatically frees old plot data.
*/
create_plot_info_new(d, get_dive_dc_const(d, dc), &plotInfo, !calcMax, planner_ds);
if (!keepPlotInfo)
create_plot_info_new(d, get_dive_dc_const(d, dc), &plotInfo, !calcMax, planner_ds);
bool hasHeartBeat = plotInfo.maxhr;
// For mobile we might want to turn of some features that are normally shown.