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Don't show '0.0%' gas percentages

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It's just distracting.  Leave it empty.  No helium should be visually
very different from actual trimix, and for oxygen, zero means something
different anyway (it's air).  In neither case is '0.0%' a good string to
show, just show it as empty.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Linus Torvalds 2013-06-19 18:22:09 -10:00 committed by Dirk Hohndel
parent 45d9ca09de
commit bc24b9320f
1 changed files with 12 additions and 2 deletions
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14
qt-ui/models.cpp
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@ -59,6 +59,16 @@ int CylindersModel::columnCount(const QModelIndex& parent) const
return COLUMNS;
}
static QVariant percent_string(fraction_t fraction)
{
int permille = fraction.permille;
if (!permille)
return QVariant();
return QString("%1%").arg(permille / 10.0, 0, 'f', 1);
}
QVariant CylindersModel::data(const QModelIndex& index, int role) const
{
QVariant ret;
@ -109,10 +119,10 @@ QVariant CylindersModel::data(const QModelIndex& index, int role) const
ret = get_pressure_string(cyl->end, TRUE);
break;
case O2:
ret = QString("%1%").arg(cyl->gasmix.o2.permille / 10.0, 0, 'f', 1);
ret = percent_string(cyl->gasmix.o2);
break;
case HE:
ret = QString("%1%").arg(cyl->gasmix.he.permille / 10.0, 0, 'f', 1);
ret = percent_string(cyl->gasmix.he);
break;
}
break;