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CylindersModel: test for CHANGED() outside of switch statement

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A small code consolidation:

With one exception, all targets of the switch statement would
test for CHANGED(). Instead do the test once and exit early.
This changes the behavior of the function: if not changed, there
will be no more dataChanged-signal. However, this appears to be
the correct thing to do anyway. And it is easily changed if
it matters after all.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2020-02-27 19:01:43 +01:00
parent a4a06c48bf
commit a75360f58f
1 changed files with 30 additions and 40 deletions
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70
qt-models/cylindermodel.cpp
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@ -321,17 +321,18 @@ bool CylindersModel::setData(const QModelIndex &index, const QVariant &value, in
return false;
}
bool changed = CHANGED();
if (index.column() != TYPE && !changed)
return false;
switch (index.column()) {
case TYPE: {
QString type = value.toString();
if (!same_string(qPrintable(type), cyl->type.description)) {
free((void *)cyl->type.description);
cyl->type.description = strdup(qPrintable(type));
}
case TYPE:
if (!same_string(qPrintable(vString), cyl->type.description)) {
free((void *)cyl->type.description);
cyl->type.description = strdup(qPrintable(vString));
}
break;
case SIZE:
if (CHANGED()) {
case SIZE: {
TankInfoModel *tanks = TankInfoModel::instance();
QModelIndexList matches = tanks->match(tanks->index(0, 0), Qt::DisplayRole, cyl->type.description);
@ -340,8 +341,7 @@ bool CylindersModel::setData(const QModelIndex &index, const QVariant &value, in
tanks->setData(tanks->index(matches.first().row(), TankInfoModel::ML), cyl->type.size.mliter);
}
break;
case WORKINGPRESS:
if (CHANGED()) {
case WORKINGPRESS: {
TankInfoModel *tanks = TankInfoModel::instance();
QModelIndexList matches = tanks->match(tanks->index(0, 0), Qt::DisplayRole, cyl->type.description);
cyl->type.workingpressure = string_to_pressure(qPrintable(vString));
@ -350,16 +350,13 @@ bool CylindersModel::setData(const QModelIndex &index, const QVariant &value, in
}
break;
case START:
if (CHANGED())
cyl->start = string_to_pressure(qPrintable(vString));
cyl->start = string_to_pressure(qPrintable(vString));
break;
case END:
if (CHANGED())
//&& (!cyl->start.mbar || string_to_pressure(qPrintable(vString)).mbar <= cyl->start.mbar)) {
cyl->end = string_to_pressure(qPrintable(vString));
//if (!cyl->start.mbar || string_to_pressure(qPrintable(vString)).mbar <= cyl->start.mbar) {
cyl->end = string_to_pressure(qPrintable(vString));
break;
case O2:
if (CHANGED()) {
case O2: {
cyl->gasmix.o2 = string_to_fraction(qPrintable(vString));
// fO2 + fHe must not be greater than 1
if (get_o2(cyl->gasmix) + get_he(cyl->gasmix) > 1000)
@ -375,20 +372,16 @@ bool CylindersModel::setData(const QModelIndex &index, const QVariant &value, in
}
break;
case HE:
if (CHANGED()) {
cyl->gasmix.he = string_to_fraction(qPrintable(vString));
// fO2 + fHe must not be greater than 1
if (get_o2(cyl->gasmix) + get_he(cyl->gasmix) > 1000)
cyl->gasmix.o2.permille = 1000 - get_he(cyl->gasmix);
cyl->bestmix_he = false;
}
cyl->gasmix.he = string_to_fraction(qPrintable(vString));
// fO2 + fHe must not be greater than 1
if (get_o2(cyl->gasmix) + get_he(cyl->gasmix) > 1000)
cyl->gasmix.o2.permille = 1000 - get_he(cyl->gasmix);
cyl->bestmix_he = false;
break;
case DEPTH:
if (CHANGED())
cyl->depth = string_to_depth(qPrintable(vString));
cyl->depth = string_to_depth(qPrintable(vString));
break;
case MOD:
if (CHANGED()) {
case MOD: {
if (QString::compare(qPrintable(vString), "*") == 0) {
cyl->bestmix_o2 = true;
// Calculate fO2 for max. depth
@ -404,20 +397,17 @@ bool CylindersModel::setData(const QModelIndex &index, const QVariant &value, in
}
break;
case MND:
if (CHANGED()) {
if (QString::compare(qPrintable(vString), "*") == 0) {
cyl->bestmix_he = true;
// Calculate fO2 for max. depth
cyl->gasmix.he = best_he(d->maxdepth, d, prefs.o2narcotic, cyl->gasmix.o2);
} else {
cyl->bestmix_he = false;
// Calculate fHe for input depth
cyl->gasmix.he = best_he(string_to_depth(qPrintable(vString)), d, prefs.o2narcotic, cyl->gasmix.o2);
}
if (QString::compare(qPrintable(vString), "*") == 0) {
cyl->bestmix_he = true;
// Calculate fO2 for max. depth
cyl->gasmix.he = best_he(d->maxdepth, d, prefs.o2narcotic, cyl->gasmix.o2);
} else {
cyl->bestmix_he = false;
// Calculate fHe for input depth
cyl->gasmix.he = best_he(string_to_depth(qPrintable(vString)), d, prefs.o2narcotic, cyl->gasmix.o2);
}
break;
case USE:
if (CHANGED()) {
case USE: {
int use = vString.toInt();
if (use > NUM_GAS_USE - 1 || use < 0)
use = 0;