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profile: add space at bottom of temperature graph

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The temperature graph connected directly to whatever was below.
Thus, the lowest temperature often was not clearly seen.

Add a general "bottom border" space to the main chart features
and set it to two pixels for the temperature and zero pixels
for the rest. Might need some fine-tuning.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-12-11 08:45:47 +01:00 committed by Dirk Hohndel
parent 3ae160857d
commit cf1ad3d831
1 changed files with 7 additions and 6 deletions
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13
profile-widget/profilescene.cpp
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@ -277,7 +277,8 @@ static auto slope(Func f)
// Helper structure for laying out secondary plots.
struct VerticalAxisLayout {
DiveCartesianAxis *axis;
double height;
double height; // in pixels (times dpr) or a weight if not enough space
double bottom_border; // in pixels (times dpr)
bool visible;
};
@ -334,10 +335,10 @@ void ProfileScene::updateAxes(bool diveHasHeartBeat, bool simplified)
const double minProfileFraction = 0.5;
VerticalAxisLayout secondaryAxes[] = {
// Note: axes are listed from bottom to top, since they are added that way.
{ heartBeatAxis, 75.0, prefs.hrgraph && diveHasHeartBeat },
{ percentageAxis, 50.0, prefs.percentagegraph },
{ gasYAxis, 75.0, ppGraphsEnabled(currentdc, simplified) },
{ temperatureAxis, 50.0, true },
{ heartBeatAxis, 75.0, 0.0, prefs.hrgraph && diveHasHeartBeat },
{ percentageAxis, 50.0, 0.0, prefs.percentagegraph },
{ gasYAxis, 75.0, 0.0, ppGraphsEnabled(currentdc, simplified) },
{ temperatureAxis, 50.0, 2.0, true },
};
// A loop is probably easier to read than std::accumulate.
@ -359,7 +360,7 @@ void ProfileScene::updateAxes(bool diveHasHeartBeat, bool simplified)
if (!l.visible)
continue;
bottomBorder -= l.height * dpr;
l.axis->setPosition(QRectF(leftBorder, bottomBorder, width, l.height * dpr));
l.axis->setPosition(QRectF(leftBorder, bottomBorder, width, (l.height - l.bottom_border) * dpr));
}
height = bottomBorder - topBorder;