subsurface/qt-models/cylindermodel.cpp
Rick Walsh bb31517951 Planner: update cylinder mixes and MND and MOD when prefs are changed
Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-07-09 12:08:48 -07:00

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#include "cylindermodel.h"
#include "tankinfomodel.h"
#include "models.h"
#include "core/helpers.h"
#include "core/dive.h"
#include "core/color.h"
#include "qt-models/diveplannermodel.h"
#include "core/gettextfromc.h"
CylindersModel::CylindersModel(QObject *parent) :
CleanerTableModel(parent),
changed(false),
rows(0)
{
// enum {REMOVE, TYPE, SIZE, WORKINGPRESS, START, END, O2, HE, DEPTH, MOD, MND, USE};
setHeaderDataStrings(QStringList() << "" << tr("Type") << tr("Size") << tr("Work press.") << tr("Start press.") << tr("End press.") << tr("O₂%") << tr("He%")
<< tr("Deco MOD") <<tr("Bot. MOD") <<tr("MND") << tr("Use"));
}
CylindersModel *CylindersModel::instance()
{
static QScopedPointer<CylindersModel> self(new CylindersModel());
return self.data();
}
static QString get_cylinder_string(cylinder_t *cyl)
{
QString unit;
int decimals;
unsigned int ml = cyl->type.size.mliter;
pressure_t wp = cyl->type.workingpressure;
double value;
// We cannot use "get_volume_units()", because even when
// using imperial units we may need to show the size in
// liters: if we don't have a working pressure, we cannot
// convert the cylinder size to cuft.
if (wp.mbar && prefs.units.volume == units::CUFT) {
double real_value = ml_to_cuft(gas_volume(cyl, wp));
value = ml_to_cuft(ml) * bar_to_atm(wp.mbar / 1000.0);
decimals = (value > 20.0) ? 0 : (value > 2.0) ? 1 : 2;
unit = QString("(%1)%2").arg(real_value, 0, 'f', 0).arg(CylindersModel::tr("cuft"));
} else {
value = ml / 1000.0;
decimals = 1;
unit = CylindersModel::tr("");
}
return QString("%1").arg(value, 0, 'f', decimals) + unit;
}
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;
if (!index.isValid() || index.row() >= MAX_CYLINDERS)
return ret;
cylinder_t *cyl = &displayed_dive.cylinder[index.row()];
switch (role) {
case Qt::BackgroundRole: {
switch (index.column()) {
// mark the cylinder start / end pressure in red if the values
// seem implausible
case START:
case END:
if ((cyl->start.mbar && !cyl->end.mbar) ||
(cyl->end.mbar && cyl->start.mbar <= cyl->end.mbar))
ret = REDORANGE1_HIGH_TRANS;
break;
}
break;
}
case Qt::FontRole: {
QFont font = defaultModelFont();
switch (index.column()) {
case START:
font.setItalic(!cyl->start.mbar);
break;
case END:
font.setItalic(!cyl->end.mbar);
break;
}
ret = font;
break;
}
case Qt::TextAlignmentRole:
ret = Qt::AlignCenter;
break;
case Qt::DisplayRole:
case Qt::EditRole:
switch (index.column()) {
case TYPE:
ret = QString(cyl->type.description);
break;
case SIZE:
if (cyl->type.size.mliter)
ret = get_cylinder_string(cyl);
break;
case WORKINGPRESS:
if (cyl->type.workingpressure.mbar)
ret = get_pressure_string(cyl->type.workingpressure, true);
break;
case START:
if (cyl->start.mbar)
ret = get_pressure_string(cyl->start, true);
else if (cyl->sample_start.mbar)
ret = get_pressure_string(cyl->sample_start, true);
break;
case END:
if (cyl->end.mbar)
ret = get_pressure_string(cyl->end, true);
else if (cyl->sample_end.mbar)
ret = get_pressure_string(cyl->sample_end, true);
break;
case O2:
ret = percent_string(cyl->gasmix.o2);
break;
case HE:
ret = percent_string(cyl->gasmix.he);
break;
case DEPTH:
ret = get_depth_string(cyl->depth, true);
break;
case MOD:
if (cyl->bestmix_o2) {
ret = QString("*");
} else {
pressure_t modpO2;
modpO2.mbar = prefs.bottompo2;
ret = get_depth_string(gas_mod(&cyl->gasmix, modpO2, &displayed_dive, M_OR_FT(1,1)));
}
break;
case MND:
if (cyl->bestmix_he)
ret = QString("*");
else
ret = get_depth_string(gas_mnd(&cyl->gasmix, prefs.bestmixend, &displayed_dive, M_OR_FT(1,1)));
break;
case USE:
ret = gettextFromC::instance()->trGettext(cylinderuse_text[cyl->cylinder_use]);
break;
}
break;
case Qt::DecorationRole:
if (index.column() == REMOVE) {
if (rowCount() > 1)
ret = trashIcon();
else
ret = trashForbiddenIcon();
}
break;
case Qt::SizeHintRole:
if (index.column() == REMOVE) {
if (rowCount() > 1)
ret = trashIcon();
else
ret = trashForbiddenIcon();
}
break;
case Qt::ToolTipRole:
if (index.column() == REMOVE)
ret = tr("Clicking here will remove this cylinder.");
break;
}
return ret;
}
cylinder_t *CylindersModel::cylinderAt(const QModelIndex &index)
{
return &displayed_dive.cylinder[index.row()];
}
// this is our magic 'pass data in' function that allows the delegate to get
// the data here without silly unit conversions;
// so we only implement the two columns we care about
void CylindersModel::passInData(const QModelIndex &index, const QVariant &value)
{
cylinder_t *cyl = cylinderAt(index);
switch (index.column()) {
case SIZE:
if (cyl->type.size.mliter != value.toInt()) {
cyl->type.size.mliter = value.toInt();
dataChanged(index, index);
}
break;
case WORKINGPRESS:
if (cyl->type.workingpressure.mbar != value.toInt()) {
cyl->type.workingpressure.mbar = value.toInt();
dataChanged(index, index);
}
break;
}
}
bool CylindersModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
QString vString;
bool addDiveMode = DivePlannerPointsModel::instance()->currentMode() != DivePlannerPointsModel::NOTHING;
if (addDiveMode)
DivePlannerPointsModel::instance()->rememberTanks();
cylinder_t *cyl = cylinderAt(index);
switch (index.column()) {
case TYPE:
if (!value.isNull()) {
QByteArray ba = value.toByteArray();
const char *text = ba.constData();
if (!cyl->type.description || strcmp(cyl->type.description, text)) {
cyl->type.description = strdup(text);
changed = true;
}
}
break;
case SIZE:
if (CHANGED()) {
TankInfoModel *tanks = TankInfoModel::instance();
QModelIndexList matches = tanks->match(tanks->index(0, 0), Qt::DisplayRole, cyl->type.description);
cyl->type.size = string_to_volume(vString.toUtf8().data(), cyl->type.workingpressure);
mark_divelist_changed(true);
if (!matches.isEmpty())
tanks->setData(tanks->index(matches.first().row(), TankInfoModel::ML), cyl->type.size.mliter);
changed = true;
}
break;
case WORKINGPRESS:
if (CHANGED()) {
TankInfoModel *tanks = TankInfoModel::instance();
QModelIndexList matches = tanks->match(tanks->index(0, 0), Qt::DisplayRole, cyl->type.description);
cyl->type.workingpressure = string_to_pressure(vString.toUtf8().data());
if (!matches.isEmpty())
tanks->setData(tanks->index(matches.first().row(), TankInfoModel::BAR), cyl->type.workingpressure.mbar / 1000.0);
changed = true;
}
break;
case START:
if (CHANGED()) {
cyl->start = string_to_pressure(vString.toUtf8().data());
changed = true;
}
break;
case END:
if (CHANGED()) {
//&& (!cyl->start.mbar || string_to_pressure(vString.toUtf8().data()).mbar <= cyl->start.mbar)) {
cyl->end = string_to_pressure(vString.toUtf8().data());
changed = true;
}
break;
case O2:
if (CHANGED()) {
cyl->gasmix.o2 = string_to_fraction(vString.toUtf8().data());
// fO2 + fHe must not be greater than 1
if (get_o2(&cyl->gasmix) + get_he(&cyl->gasmix) > 1000)
cyl->gasmix.he.permille = 1000 - get_o2(&cyl->gasmix);
pressure_t modpO2;
if (displayed_dive.dc.divemode == PSCR)
modpO2.mbar = prefs.decopo2 + (1000 - get_o2(&cyl->gasmix)) * SURFACE_PRESSURE *
prefs.o2consumption / prefs.decosac / prefs.pscr_ratio;
else
modpO2.mbar = prefs.decopo2;
cyl->depth = gas_mod(&cyl->gasmix, modpO2, &displayed_dive, M_OR_FT(3, 10));
cyl->bestmix_o2 = false;
changed = true;
}
break;
case HE:
if (CHANGED()) {
cyl->gasmix.he = string_to_fraction(vString.toUtf8().data());
// 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;
changed = true;
}
break;
case DEPTH:
if (CHANGED()) {
cyl->depth = string_to_depth(vString.toUtf8().data());
changed = true;
}
break;
case MOD:
if (CHANGED()) {
if (QString::compare(vString.toUtf8().data(), "*") == 0) {
cyl->bestmix_o2 = true;
// Calculate fO2 for max depth
cyl->gasmix.o2 = best_o2(displayed_dive.maxdepth, &displayed_dive);
} else {
cyl->bestmix_o2 = false;
// Calculate fO2 for input depth
cyl->gasmix.o2 = best_o2(string_to_depth(vString.toUtf8().data()), &displayed_dive);
}
pressure_t modpO2;
modpO2.mbar = prefs.decopo2;
cyl->depth = gas_mod(&cyl->gasmix, modpO2, &displayed_dive, M_OR_FT(3, 10));
changed = true;
}
break;
case MND:
if (CHANGED()) {
if (QString::compare(vString.toUtf8().data(), "*") == 0) {
cyl->bestmix_he = true;
// Calculate fO2 for max depth
cyl->gasmix.he = best_he(displayed_dive.maxdepth, &displayed_dive);
} else {
cyl->bestmix_he = false;
// Calculate fHe for input depth
cyl->gasmix.he = best_he(string_to_depth(vString.toUtf8().data()), &displayed_dive);
}
changed = true;
}
break;
case USE:
if (CHANGED()) {
int use = vString.toInt();
if (use > NUM_GAS_USE - 1 || use < 0)
use = 0;
cyl->cylinder_use = (enum cylinderuse)use;
changed = true;
}
break;
}
dataChanged(index, index);
return true;
}
int CylindersModel::rowCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return rows;
}
void CylindersModel::add()
{
if (rows >= MAX_CYLINDERS) {
return;
}
int row = rows;
fill_default_cylinder(&displayed_dive.cylinder[row]);
displayed_dive.cylinder[row].manually_added = true;
beginInsertRows(QModelIndex(), row, row);
rows++;
changed = true;
endInsertRows();
}
void CylindersModel::clear()
{
if (rows > 0) {
beginRemoveRows(QModelIndex(), 0, rows - 1);
endRemoveRows();
}
}
void CylindersModel::updateDive()
{
clear();
rows = 0;
for (int i = 0; i < MAX_CYLINDERS; i++) {
if (!cylinder_none(&displayed_dive.cylinder[i]) &&
(prefs.display_unused_tanks ||
is_cylinder_used(&displayed_dive, i) ||
displayed_dive.cylinder[i].manually_added))
rows = i + 1;
}
if (rows > 0) {
beginInsertRows(QModelIndex(), 0, rows - 1);
endInsertRows();
}
}
void CylindersModel::copyFromDive(dive *d)
{
if (!d)
return;
rows = 0;
for (int i = 0; i < MAX_CYLINDERS; i++) {
if (!cylinder_none(&d->cylinder[i]) &&
(is_cylinder_used(d, i) || prefs.display_unused_tanks)) {
rows = i + 1;
}
}
if (rows > 0) {
beginInsertRows(QModelIndex(), 0, rows - 1);
endInsertRows();
}
}
Qt::ItemFlags CylindersModel::flags(const QModelIndex &index) const
{
if (index.column() == REMOVE)
return Qt::ItemIsEnabled;
return QAbstractItemModel::flags(index) | Qt::ItemIsEditable;
}
void CylindersModel::remove(const QModelIndex &index)
{
int mapping[MAX_CYLINDERS];
if (index.column() != REMOVE) {
return;
}
int same_gas = -1;
cylinder_t *cyl = &displayed_dive.cylinder[index.row()];
struct gasmix *mygas = &cyl->gasmix;
for (int i = 0; i < MAX_CYLINDERS; i++) {
mapping[i] = i;
if (i == index.row() || cylinder_none(&displayed_dive.cylinder[i]))
continue;
struct gasmix *gas2 = &displayed_dive.cylinder[i].gasmix;
if (gasmix_distance(mygas, gas2) == 0)
same_gas = i;
}
if (same_gas == -1 &&
((DivePlannerPointsModel::instance()->currentMode() != DivePlannerPointsModel::NOTHING &&
DivePlannerPointsModel::instance()->tankInUse(index.row())) ||
(DivePlannerPointsModel::instance()->currentMode() == DivePlannerPointsModel::NOTHING &&
is_cylinder_used(&displayed_dive, index.row())))) {
emit warningMessage(TITLE_OR_TEXT(
tr("Cylinder cannot be removed"),
tr("This gas is in use. Only cylinders that are not used in the dive can be removed.")));
return;
}
beginRemoveRows(QModelIndex(), index.row(), index.row()); // yah, know, ugly.
rows--;
// if we didn't find an identical gas, point same_gas at the index.row()
if (same_gas == -1)
same_gas = index.row();
if (index.row() == 0) {
// first gas - we need to make sure that the same gas ends up
// as first gas
memmove(cyl, &displayed_dive.cylinder[same_gas], sizeof(*cyl));
remove_cylinder(&displayed_dive, same_gas);
mapping[same_gas] = 0;
for (int i = same_gas + 1; i < MAX_CYLINDERS; i++)
mapping[i] = i - 1;
} else {
remove_cylinder(&displayed_dive, index.row());
if (same_gas > index.row())
same_gas--;
mapping[index.row()] = same_gas;
for (int i = index.row() + 1; i < MAX_CYLINDERS; i++)
mapping[i] = i - 1;
}
changed = true;
endRemoveRows();
struct divecomputer *dc = &displayed_dive.dc;
while (dc) {
dc_cylinder_renumber(&displayed_dive, dc, mapping);
dc = dc->next;
}
}
void CylindersModel::updateDecoDepths(pressure_t olddecopo2)
{
pressure_t decopo2;
decopo2.mbar = prefs.decopo2;
for (int i = 0; i < MAX_CYLINDERS; i++) {
cylinder_t *cyl = &displayed_dive.cylinder[i];
struct gasmix *mygas = &cyl->gasmix;
/* If the gas's deco MOD matches the old pO2, it will have been automatically calculated and should be updated.
* If they don't match, we should leave the user entered depth as it is */
if (cyl->depth.mm == gas_mod(&cyl->gasmix, olddecopo2, &displayed_dive, M_OR_FT(3, 10)).mm) {
cyl->depth = gas_mod(&cyl->gasmix, decopo2, &displayed_dive, M_OR_FT(3, 10));
}
}
emit dataChanged(createIndex(0, 0), createIndex(MAX_CYLINDERS - 1, COLUMNS - 1));
}
bool CylindersModel::updateBestMixes()
{
// Check if any of the cylinders are best mixes, update if needed
bool gasUpdated = false;
for (int i = 0; i < MAX_CYLINDERS; i++) {
cylinder_t *cyl = &displayed_dive.cylinder[i];
if (cyl->bestmix_o2) {
cyl->gasmix.o2 = best_o2(displayed_dive.maxdepth, &displayed_dive);
// fO2 + fHe must not be greater than 1
if (get_o2(&cyl->gasmix) + get_he(&cyl->gasmix) > 1000)
cyl->gasmix.he.permille = 1000 - get_o2(&cyl->gasmix);
pressure_t modpO2;
modpO2.mbar = prefs.decopo2;
cyl->depth = gas_mod(&cyl->gasmix, modpO2, &displayed_dive, M_OR_FT(3, 10));
gasUpdated = true;
}
if (cyl->bestmix_he) {
cyl->gasmix.he = best_he(displayed_dive.maxdepth, &displayed_dive);
// 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);
gasUpdated = true;
}
}
/* This slot is called when the bottom pO2 and END preferences are updated, we want to
* emit dataChanged so MOD and MND are refreshed, even if the gas mix hasn't been changed */
emit dataChanged(createIndex(0, 0), createIndex(MAX_CYLINDERS - 1, COLUMNS - 1));
return gasUpdated;
}