mifr/subsurface
1
0
Fork 0
mirror of https://github.com/subsurface/subsurface.git synced 2025-01-31 20:23:25 +00:00
Code Issues Projects Releases Packages Wiki Activity

Take the on-canvas position into account for DiveCartesianAxis::valueAt()

Browse source 
We did this right for posAtValue(), but not for the inverse.

Fixes #438

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2014-02-11 12:05:33 -08:00
parent ccb1c33d02
commit 92bbed3304
2 changed files with 7 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
qt-ui/profile/divecartesianaxis.cpp
View file

@ -187,12 +187,15 @@ void DiveCartesianAxis::setTickInterval(double i)
interval = i;
}
qreal DiveCartesianAxis::valueAt(const QPointF& p)
qreal DiveCartesianAxis::valueAt(const QPointF& p) const
{
QLineF m = line();
QPointF relativePosition = p;
relativePosition -= pos(); // normalize p based on the axis' offset on screen
double retValue = (orientation == LeftToRight || orientation == RightToLeft) ?
max * (p.x() - m.x1()) / (m.x2() - m.x1()) :
max * (p.y() - m.y1()) / (m.y2() - m.y1());
max * (relativePosition.x() - m.x1()) / (m.x2() - m.x1()) :
max * (relativePosition.y() - m.y1()) / (m.y2() - m.y1());
return retValue;
}

2
qt-ui/profile/divecartesianaxis.h
View file

@ -29,7 +29,7 @@ public:
double maximum() const;
double tickInterval() const;
double tickSize() const;
qreal valueAt(const QPointF& p);
qreal valueAt(const QPointF& p) const;
qreal percentAt(const QPointF& p);
qreal posAtValue(qreal value);
void setColor(const QColor& color);