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profile: add width() function to DiveCartesian axis

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To properly layout the profile we need to know the expected space
required by the vertical axes. In the general case, format the
the text "999". For the partial-pressure-axis, use "0.99".

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2021-08-11 10:57:42 +02:00 • committed by Dirk Hohndel
parent f713858ba4
commit 7dd9b65df0
4 changed files with 36 additions and 7 deletions
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19
profile-widget/divecartesianaxis.cpp
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@ -8,6 +8,8 @@
#include "profile-widget/divelineitem.h"
#include "profile-widget/profilescene.h"
static const double labelSpace = 2.0; // space between label and ticks
QPen DiveCartesianAxis::gridPen() const
{
QPen pen;
@ -117,6 +119,18 @@ void emptyList(QList<T *> &list, int steps, int speed)
}
}
double DiveCartesianAxis::textWidth(const QString &s) const
{
QFont fnt = DiveTextItem::getFont(dpr, labelScale);
QFontMetrics fm(fnt);
return fm.size(Qt::TextSingleLine, s).width() + labelSpace * dpr;
}
double DiveCartesianAxis::width() const
{
return textWidth("999");
}
void DiveCartesianAxis::updateTicks(int animSpeed, color_index_t color)
{
if (!changed && !printMode)
@ -401,3 +415,8 @@ void PartialGasPressureAxis::update(int animSpeed)
setTickInterval(pp > 4 ? 0.5 : 0.25);
updateTicks(animSpeed);
}
double PartialGasPressureAxis::width() const
{
return textWidth(textForValue(0.99));
}