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794066b236
Instead of accessing the cylinder table directly, use the get_cylinder() function. This gives less unwieldy expressions. But more importantly, the function does bound checking. This is crucial for now as the code hasn't be properly audited since the change to arbitrarily sized cylinder tables. Accesses of invalid cylinder indexes may lead to silent data-corruption that is sometimes not even noticed by valgrind. Returning NULL instead of an invalid pointer will make debugging much easier. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
619 lines
18 KiB
C++
619 lines
18 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include "cylindermodel.h"
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#include "tankinfomodel.h"
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#include "models.h"
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#include "core/qthelper.h"
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#include "core/divelist.h" // for mark_divelist_changed()
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#include "core/color.h"
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#include "qt-models/diveplannermodel.h"
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#include "core/gettextfromc.h"
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#include "core/subsurface-qt/DiveListNotifier.h"
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CylindersModel::CylindersModel(QObject *parent) :
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CleanerTableModel(parent),
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changed(false),
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rows(0)
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{
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// enum {REMOVE, TYPE, SIZE, WORKINGPRESS, START, END, O2, HE, DEPTH, MOD, MND, USE};
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setHeaderDataStrings(QStringList() << "" << tr("Type") << tr("Size") << tr("Work press.") << tr("Start press.") << tr("End press.") << tr("O₂%") << tr("He%")
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<< tr("Deco switch at") <<tr("Bot. MOD") <<tr("MND") << tr("Use"));
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connect(&diveListNotifier, &DiveListNotifier::cylindersReset, this, &CylindersModel::cylindersReset);
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}
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QVariant CylindersModel::headerData(int section, Qt::Orientation orientation, int role) const
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{
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if (role == Qt::DisplayRole && orientation == Qt::Horizontal && in_planner() && section == WORKINGPRESS)
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return tr("Start press.");
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else
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return CleanerTableModel::headerData(section, orientation, role);
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}
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CylindersModel *CylindersModel::instance()
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{
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static CylindersModel self;
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return &self;
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}
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static QString get_cylinder_string(const cylinder_t *cyl)
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{
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QString unit;
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int decimals;
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unsigned int ml = cyl->type.size.mliter;
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pressure_t wp = cyl->type.workingpressure;
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double value;
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// We cannot use "get_volume_units()", because even when
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// using imperial units we may need to show the size in
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// liters: if we don't have a working pressure, we cannot
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// convert the cylinder size to cuft.
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if (wp.mbar && prefs.units.volume == units::CUFT) {
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value = ml_to_cuft(ml) * bar_to_atm(wp.mbar / 1000.0);
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decimals = (value > 20.0) ? 0 : (value > 2.0) ? 1 : 2;
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unit = CylindersModel::tr("cuft");
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} else {
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value = ml / 1000.0;
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decimals = 1;
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unit = CylindersModel::tr("ℓ");
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}
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return QString("%L1").arg(value, 0, 'f', decimals) + unit;
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}
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static QString gas_volume_string(int ml, const char *tail)
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{
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double vol;
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const char *unit;
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int decimals;
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vol = get_volume_units(ml, NULL, &unit);
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decimals = (vol > 20.0) ? 0 : (vol > 2.0) ? 1 : 2;
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return QString("%L1 %2 %3").arg(vol, 0, 'f', decimals).arg(unit).arg(tail);
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}
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static QVariant gas_wp_tooltip(const cylinder_t *cyl);
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static QVariant gas_usage_tooltip(const cylinder_t *cyl)
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{
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pressure_t startp = cyl->start.mbar ? cyl->start : cyl->sample_start;
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pressure_t endp = cyl->end.mbar ? cyl->end : cyl->sample_end;
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int start, end, used;
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start = gas_volume(cyl, startp);
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end = gas_volume(cyl, endp);
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used = (end && start > end) ? start - end : 0;
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if (!used)
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return gas_wp_tooltip(cyl);
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return gas_volume_string(used, "(") +
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gas_volume_string(start, " -> ") +
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gas_volume_string(end, ")");
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}
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static QVariant gas_volume_tooltip(const cylinder_t *cyl, pressure_t p)
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{
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int vol = gas_volume(cyl, p);
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double Z;
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if (!vol)
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return QVariant();
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Z = gas_compressibility_factor(cyl->gasmix, p.mbar / 1000.0);
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return gas_volume_string(vol, "(Z=") + QString("%1)").arg(Z, 0, 'f', 3);
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}
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static QVariant gas_wp_tooltip(const cylinder_t *cyl)
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{
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return gas_volume_tooltip(cyl, cyl->type.workingpressure);
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}
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static QVariant gas_start_tooltip(const cylinder_t *cyl)
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{
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return gas_volume_tooltip(cyl, cyl->start.mbar ? cyl->start : cyl->sample_start);
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}
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static QVariant gas_end_tooltip(const cylinder_t *cyl)
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{
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return gas_volume_tooltip(cyl, cyl->end.mbar ? cyl->end : cyl->sample_end);
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}
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static QVariant percent_string(fraction_t fraction)
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{
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int permille = fraction.permille;
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if (!permille)
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return QVariant();
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return QString("%L1%").arg(permille / 10.0, 0, 'f', 1);
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}
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QVariant CylindersModel::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid() || index.row() >= rows)
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return QVariant();
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const cylinder_t *cyl = get_cylinder(&displayed_dive, index.row());
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switch (role) {
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case Qt::BackgroundRole: {
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switch (index.column()) {
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// mark the cylinder start / end pressure in red if the values
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// seem implausible
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case START:
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case END:
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pressure_t startp, endp;
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startp = cyl->start.mbar ? cyl->start : cyl->sample_start;
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endp = cyl->end.mbar ? cyl->end : cyl->sample_end;
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if ((startp.mbar && !endp.mbar) ||
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(endp.mbar && startp.mbar <= endp.mbar))
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return REDORANGE1_HIGH_TRANS;
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break;
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}
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break;
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}
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case Qt::FontRole: {
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QFont font = defaultModelFont();
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switch (index.column()) {
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// if we don't have manually set pressure data use italic font
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case START:
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font.setItalic(!cyl->start.mbar);
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break;
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case END:
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font.setItalic(!cyl->end.mbar);
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break;
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}
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return font;
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}
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case Qt::TextAlignmentRole:
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return Qt::AlignCenter;
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case Qt::DisplayRole:
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case Qt::EditRole:
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switch (index.column()) {
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case TYPE:
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return QString(cyl->type.description);
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case SIZE:
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if (cyl->type.size.mliter)
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return get_cylinder_string(cyl);
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break;
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case WORKINGPRESS:
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if (cyl->type.workingpressure.mbar)
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return get_pressure_string(cyl->type.workingpressure, true);
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break;
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case START:
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if (cyl->start.mbar)
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return get_pressure_string(cyl->start, true);
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else if (cyl->sample_start.mbar)
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return get_pressure_string(cyl->sample_start, true);
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break;
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case END:
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if (cyl->end.mbar)
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return get_pressure_string(cyl->end, true);
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else if (cyl->sample_end.mbar)
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return get_pressure_string(cyl->sample_end, true);
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break;
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case O2:
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return percent_string(cyl->gasmix.o2);
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case HE:
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return percent_string(cyl->gasmix.he);
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case DEPTH:
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return get_depth_string(cyl->depth, true);
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case MOD:
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if (cyl->bestmix_o2) {
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return QStringLiteral("*");
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} else {
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pressure_t modpO2;
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modpO2.mbar = prefs.bottompo2;
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return get_depth_string(gas_mod(cyl->gasmix, modpO2, &displayed_dive, M_OR_FT(1,1)), true);
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}
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case MND:
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if (cyl->bestmix_he)
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return QStringLiteral("*");
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else
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return get_depth_string(gas_mnd(cyl->gasmix, prefs.bestmixend, &displayed_dive, M_OR_FT(1,1)), true);
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break;
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case USE:
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return gettextFromC::tr(cylinderuse_text[cyl->cylinder_use]);
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}
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break;
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case Qt::DecorationRole:
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case Qt::SizeHintRole:
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if (index.column() == REMOVE) {
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if ((in_planner() && DivePlannerPointsModel::instance()->tankInUse(index.row())) ||
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(!in_planner() && is_cylinder_prot(&displayed_dive, index.row()))) {
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return trashForbiddenIcon();
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}
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return trashIcon();
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}
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break;
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case Qt::ToolTipRole:
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switch (index.column()) {
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case REMOVE:
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if ((in_planner() && DivePlannerPointsModel::instance()->tankInUse(index.row())) ||
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(!in_planner() && is_cylinder_prot(&displayed_dive, index.row()))) {
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return tr("This gas is in use. Only cylinders that are not used in the dive can be removed.");
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}
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return tr("Clicking here will remove this cylinder.");
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case TYPE:
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case SIZE:
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return gas_usage_tooltip(cyl);
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case WORKINGPRESS:
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return gas_wp_tooltip(cyl);
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case START:
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return gas_start_tooltip(cyl);
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case END:
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return gas_end_tooltip(cyl);
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case DEPTH:
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return tr("Switch depth for deco gas. Calculated using Deco pO₂ preference, unless set manually.");
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case MOD:
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return tr("Calculated using Bottom pO₂ preference. Setting MOD adjusts O₂%, set to '*' for best O₂% for max. depth.");
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case MND:
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return tr("Calculated using Best Mix END preference. Setting MND adjusts He%, set to '*' for best He% for max. depth.");
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}
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break;
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}
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return QVariant();
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}
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cylinder_t *CylindersModel::cylinderAt(const QModelIndex &index)
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{
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return get_cylinder(&displayed_dive, index.row());
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}
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// this is our magic 'pass data in' function that allows the delegate to get
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// the data here without silly unit conversions;
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// so we only implement the two columns we care about
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void CylindersModel::passInData(const QModelIndex &index, const QVariant &value)
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{
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cylinder_t *cyl = cylinderAt(index);
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switch (index.column()) {
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case SIZE:
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if (cyl->type.size.mliter != value.toInt()) {
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cyl->type.size.mliter = value.toInt();
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dataChanged(index, index);
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}
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break;
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case WORKINGPRESS:
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if (cyl->type.workingpressure.mbar != value.toInt()) {
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cyl->type.workingpressure.mbar = value.toInt();
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dataChanged(index, index);
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}
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break;
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}
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}
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bool CylindersModel::setData(const QModelIndex &index, const QVariant &value, int role)
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{
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QString vString;
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cylinder_t *cyl = cylinderAt(index);
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switch (index.column()) {
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case TYPE:
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if (!value.isNull()) {
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QByteArray ba = value.toByteArray();
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const char *text = ba.constData();
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if (!cyl->type.description || strcmp(cyl->type.description, text)) {
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cyl->type.description = strdup(text);
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changed = true;
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}
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}
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break;
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case SIZE:
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if (CHANGED()) {
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TankInfoModel *tanks = TankInfoModel::instance();
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QModelIndexList matches = tanks->match(tanks->index(0, 0), Qt::DisplayRole, cyl->type.description);
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cyl->type.size = string_to_volume(qPrintable(vString), cyl->type.workingpressure);
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mark_divelist_changed(true);
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if (!matches.isEmpty())
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tanks->setData(tanks->index(matches.first().row(), TankInfoModel::ML), cyl->type.size.mliter);
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changed = true;
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}
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break;
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case WORKINGPRESS:
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if (CHANGED()) {
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TankInfoModel *tanks = TankInfoModel::instance();
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QModelIndexList matches = tanks->match(tanks->index(0, 0), Qt::DisplayRole, cyl->type.description);
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cyl->type.workingpressure = string_to_pressure(qPrintable(vString));
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if (!matches.isEmpty())
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tanks->setData(tanks->index(matches.first().row(), TankInfoModel::BAR), cyl->type.workingpressure.mbar / 1000.0);
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changed = true;
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}
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break;
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case START:
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if (CHANGED()) {
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cyl->start = string_to_pressure(qPrintable(vString));
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changed = true;
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}
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break;
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case END:
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if (CHANGED()) {
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//&& (!cyl->start.mbar || string_to_pressure(qPrintable(vString)).mbar <= cyl->start.mbar)) {
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cyl->end = string_to_pressure(qPrintable(vString));
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changed = true;
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}
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break;
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case O2:
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if (CHANGED()) {
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cyl->gasmix.o2 = string_to_fraction(qPrintable(vString));
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// fO2 + fHe must not be greater than 1
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if (get_o2(cyl->gasmix) + get_he(cyl->gasmix) > 1000)
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cyl->gasmix.he.permille = 1000 - get_o2(cyl->gasmix);
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pressure_t modpO2;
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if (displayed_dive.dc.divemode == PSCR)
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modpO2.mbar = prefs.decopo2 + (1000 - get_o2(cyl->gasmix)) * SURFACE_PRESSURE *
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prefs.o2consumption / prefs.decosac / prefs.pscr_ratio;
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else
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modpO2.mbar = prefs.decopo2;
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cyl->depth = gas_mod(cyl->gasmix, modpO2, &displayed_dive, M_OR_FT(3, 10));
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cyl->bestmix_o2 = false;
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changed = true;
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}
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break;
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case HE:
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if (CHANGED()) {
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cyl->gasmix.he = string_to_fraction(qPrintable(vString));
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// fO2 + fHe must not be greater than 1
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if (get_o2(cyl->gasmix) + get_he(cyl->gasmix) > 1000)
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cyl->gasmix.o2.permille = 1000 - get_he(cyl->gasmix);
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cyl->bestmix_he = false;
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changed = true;
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}
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break;
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case DEPTH:
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if (CHANGED()) {
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cyl->depth = string_to_depth(qPrintable(vString));
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changed = true;
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}
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break;
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case MOD:
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if (CHANGED()) {
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if (QString::compare(qPrintable(vString), "*") == 0) {
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cyl->bestmix_o2 = true;
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// Calculate fO2 for max. depth
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cyl->gasmix.o2 = best_o2(displayed_dive.maxdepth, &displayed_dive);
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} else {
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cyl->bestmix_o2 = false;
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// Calculate fO2 for input depth
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cyl->gasmix.o2 = best_o2(string_to_depth(qPrintable(vString)), &displayed_dive);
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}
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pressure_t modpO2;
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modpO2.mbar = prefs.decopo2;
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cyl->depth = gas_mod(cyl->gasmix, modpO2, &displayed_dive, M_OR_FT(3, 10));
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changed = true;
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}
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break;
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case MND:
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if (CHANGED()) {
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if (QString::compare(qPrintable(vString), "*") == 0) {
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cyl->bestmix_he = true;
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// Calculate fO2 for max. depth
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cyl->gasmix.he = best_he(displayed_dive.maxdepth, &displayed_dive, prefs.o2narcotic, cyl->gasmix.o2);
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} else {
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cyl->bestmix_he = false;
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// Calculate fHe for input depth
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cyl->gasmix.he = best_he(string_to_depth(qPrintable(vString)), &displayed_dive, prefs.o2narcotic, cyl->gasmix.o2);
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}
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changed = true;
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}
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break;
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case USE:
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if (CHANGED()) {
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int use = vString.toInt();
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if (use > NUM_GAS_USE - 1 || use < 0)
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use = 0;
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cyl->cylinder_use = (enum cylinderuse)use;
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changed = true;
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}
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break;
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}
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dataChanged(index, index);
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return true;
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}
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int CylindersModel::rowCount(const QModelIndex&) const
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{
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return rows;
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}
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void CylindersModel::add()
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{
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int row = rows;
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cylinder_t cyl = { 0 };
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fill_default_cylinder(&displayed_dive, &cyl);
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cyl.start = cyl.type.workingpressure;
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cyl.manually_added = true;
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cyl.cylinder_use = OC_GAS;
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beginInsertRows(QModelIndex(), row, row);
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add_to_cylinder_table(&displayed_dive.cylinders, row, cyl);
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rows++;
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changed = true;
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endInsertRows();
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emit dataChanged(createIndex(row, 0), createIndex(row, COLUMNS - 1));
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}
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void CylindersModel::clear()
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{
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if (rows > 0) {
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beginRemoveRows(QModelIndex(), 0, rows - 1);
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endRemoveRows();
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}
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}
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static bool show_cylinder(struct dive *dive, int i)
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{
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if (i < 0 || i >= dive->cylinders.nr)
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return false;
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if (is_cylinder_used(dive, i))
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return true;
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cylinder_t *cyl = get_cylinder(dive, i);
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if (cyl->start.mbar || cyl->sample_start.mbar ||
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cyl->end.mbar || cyl->sample_end.mbar)
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return true;
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if (cyl->manually_added)
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return true;
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|
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/*
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* The cylinder has some data, but none of it is very interesting,
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* it has no pressures and no gas switches. Do we want to show it?
|
||
*/
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||
return prefs.display_unused_tanks;
|
||
}
|
||
|
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void CylindersModel::updateDive()
|
||
{
|
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#ifdef DEBUG_CYL
|
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dump_cylinders(&displayed_dive, true);
|
||
#endif
|
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beginResetModel();
|
||
// TODO: this is fundamentally broken - it assumes that unused cylinders are at
|
||
// the end. Fix by using a QSortFilterProxyModel.
|
||
rows = 0;
|
||
for (int i = 0; i < displayed_dive.cylinders.nr; ++i) {
|
||
if (show_cylinder(&displayed_dive, i))
|
||
++rows;
|
||
}
|
||
endResetModel();
|
||
}
|
||
|
||
Qt::ItemFlags CylindersModel::flags(const QModelIndex &index) const
|
||
{
|
||
if (index.column() == REMOVE || index.column() == USE)
|
||
return Qt::ItemIsEnabled;
|
||
return QAbstractItemModel::flags(index) | Qt::ItemIsEditable;
|
||
}
|
||
|
||
void CylindersModel::remove(const QModelIndex &index)
|
||
{
|
||
|
||
if (index.column() == USE) {
|
||
cylinder_t *cyl = cylinderAt(index);
|
||
if (cyl->cylinder_use == OC_GAS)
|
||
cyl->cylinder_use = NOT_USED;
|
||
else if (cyl->cylinder_use == NOT_USED)
|
||
cyl->cylinder_use = OC_GAS;
|
||
changed = true;
|
||
dataChanged(index, index);
|
||
return;
|
||
}
|
||
|
||
if (index.column() != REMOVE)
|
||
return;
|
||
|
||
if ((in_planner() && DivePlannerPointsModel::instance()->tankInUse(index.row())) ||
|
||
(!in_planner() && is_cylinder_prot(&displayed_dive, index.row())))
|
||
return;
|
||
|
||
beginRemoveRows(QModelIndex(), index.row(), index.row());
|
||
rows--;
|
||
remove_cylinder(&displayed_dive, index.row());
|
||
changed = true;
|
||
endRemoveRows();
|
||
|
||
// Create a mapping of cylinder indexes:
|
||
// 1) Fill mapping[0]..mapping[index-1] with 0..index
|
||
// 2) Set mapping[index] to -1
|
||
// 3) Fill mapping[index+1]..mapping[end] with index..
|
||
std::vector<int> mapping(displayed_dive.cylinders.nr + 1);
|
||
std::iota(mapping.begin(), mapping.begin() + index.row(), 0);
|
||
mapping[index.row()] = -1;
|
||
std::iota(mapping.begin() + index.row() + 1, mapping.end(), index.row());
|
||
|
||
cylinder_renumber(&displayed_dive, &mapping[0]);
|
||
if (in_planner())
|
||
DivePlannerPointsModel::instance()->cylinderRenumber(&mapping[0]);
|
||
changed = true;
|
||
}
|
||
|
||
void CylindersModel::moveAtFirst(int cylid)
|
||
{
|
||
cylinder_t temp_cyl;
|
||
|
||
beginMoveRows(QModelIndex(), cylid, cylid, QModelIndex(), 0);
|
||
memmove(&temp_cyl, get_cylinder(&displayed_dive, cylid), sizeof(temp_cyl));
|
||
for (int i = cylid - 1; i >= 0; i--)
|
||
memmove(get_cylinder(&displayed_dive, i + 1), get_cylinder(&displayed_dive, i), sizeof(temp_cyl));
|
||
memmove(get_cylinder(&displayed_dive, 0), &temp_cyl, sizeof(temp_cyl));
|
||
|
||
// Create a mapping of cylinder indexes:
|
||
// 1) Fill mapping[0]..mapping[cyl] with 0..index
|
||
// 2) Set mapping[cyl] to 0
|
||
// 3) Fill mapping[cyl+1]..mapping[end] with cyl..
|
||
std::vector<int> mapping(displayed_dive.cylinders.nr);
|
||
std::iota(mapping.begin(), mapping.begin() + cylid, 1);
|
||
mapping[cylid] = 0;
|
||
std::iota(mapping.begin() + (cylid + 1), mapping.end(), cylid);
|
||
cylinder_renumber(&displayed_dive, &mapping[0]);
|
||
if (in_planner())
|
||
DivePlannerPointsModel::instance()->cylinderRenumber(&mapping[0]);
|
||
changed = true;
|
||
endMoveRows();
|
||
}
|
||
|
||
void CylindersModel::updateDecoDepths(pressure_t olddecopo2)
|
||
{
|
||
pressure_t decopo2;
|
||
decopo2.mbar = prefs.decopo2;
|
||
for (int i = 0; i < displayed_dive.cylinders.nr; i++) {
|
||
cylinder_t *cyl = get_cylinder(&displayed_dive, i);
|
||
/* 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(displayed_dive.cylinders.nr - 1, COLUMNS - 1));
|
||
}
|
||
|
||
void CylindersModel::updateTrashIcon()
|
||
{
|
||
emit dataChanged(createIndex(0, 0), createIndex(displayed_dive.cylinders.nr - 1, 0));
|
||
}
|
||
|
||
bool CylindersModel::updateBestMixes()
|
||
{
|
||
// Check if any of the cylinders are best mixes, update if needed
|
||
bool gasUpdated = false;
|
||
for (int i = 0; i < displayed_dive.cylinders.nr; i++) {
|
||
cylinder_t *cyl = get_cylinder(&displayed_dive, 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, prefs.o2narcotic, cyl->gasmix.o2);
|
||
// 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 */
|
||
if (gasUpdated)
|
||
emit dataChanged(createIndex(0, 0), createIndex(displayed_dive.cylinders.nr - 1, COLUMNS - 1));
|
||
return gasUpdated;
|
||
}
|
||
|
||
void CylindersModel::cylindersReset(const QVector<dive *> &dives)
|
||
{
|
||
// This model only concerns the currently displayed dive. If this is not among the
|
||
// dives that had their cylinders reset, exit.
|
||
if (!current_dive || std::find(dives.begin(), dives.end(), current_dive) == dives.end())
|
||
return;
|
||
|
||
// Copy the cylinders from the current dive to the displayed dive.
|
||
copy_cylinders(¤t_dive->cylinders, &displayed_dive.cylinders);
|
||
|
||
// And update the model..
|
||
updateDive();
|
||
}
|