Move DivePlannerModel and CylinderModel to qt-models

Still trying to make it easier for the Mobile Port:
This patch is a bit bigger than I hopped, but it was the smallest that I
could get.

A lot of TODO items where added where I broke the code because the current
implementation would break the QML implementtion on the designer. I'll
most probably fix those myself when I finish the transition to the models
to the new folder.

I only moved both models at once because there's an interdependency
between them (seems inevitable, tough, but I'll take a better look at it
later).

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 9 insertions, 382 deletions

diff --git a/qt-models/models.cpp b/qt-models/models.cpp
index 637a2d3b1..3bc0f74a2 100644
--- a/qt-models/models.cpp
+++ b/qt-models/models.cpp
@@ -28,387 +28,12 @@
 #include <QMessageBox>
 #include <QStringListModel>
 
-static QPixmap *trashIconPixmap;
-
 // initialize the trash icon if necessary
-static void initTrashIcon()
-{
-	if (!trashIconPixmap)
-		trashIconPixmap = new QPixmap(QIcon(":trash").pixmap(defaultIconMetrics().sz_small));
-}
 
 const QPixmap &trashIcon()
 {
-	return *trashIconPixmap;
-}
-
-CylindersModel::CylindersModel(QObject *parent) : changed(false),
-	rows(0)
-{
-	//	enum {REMOVE, TYPE, SIZE, WORKINGPRESS, START, END, O2, HE, DEPTH};
-	setHeaderDataStrings(QStringList() << "" << tr("Type") << tr("Size") << tr("Work press.") << tr("Start press.") << tr("End press.") << tr("O₂%") << tr("He%")
-					   << tr("Switch at") << tr("Use"));
-
-	initTrashIcon();
-}
-
-CylindersModel *CylindersModel::instance()
-{
-
-	static QScopedPointer<CylindersModel> self(new CylindersModel());
-	return self.data();
-}
-
-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_volume_string(cyl->type.size, true, cyl->type.workingpressure.mbar);
-			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 USE:
-			ret = gettextFromC::instance()->trGettext(cylinderuse_text[cyl->cylinder_use]);
-			break;
-		}
-		break;
-	case Qt::DecorationRole:
-		if (index.column() == REMOVE)
-			ret = trashIcon();
-		break;
-	case Qt::SizeHintRole:
-		if (index.column() == REMOVE)
-			ret = trashIcon().size();
-		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;
-	}
-}
-
-/* Has the string value changed */
-#define CHANGED() \
-	(vString = value.toString()) != data(index, role).toString()
-
-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());
-			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, M_OR_FT(3, 10));
-			changed = true;
-		}
-		break;
-	case HE:
-		if (CHANGED()) {
-			cyl->gasmix.he = string_to_fraction(vString.toUtf8().data());
-			changed = true;
-		}
-		break;
-	case DEPTH:
-		if (CHANGED()) {
-			cyl->depth = string_to_depth(vString.toUtf8().data());
-			changed = true;
-		}
-		break;
-	case USE:
-		if (CHANGED()) {
-			cyl->cylinder_use = (enum cylinderuse)vString.toInt();
-			changed = true;
-		}
-		break;
-	}
-	if (addDiveMode)
-		DivePlannerPointsModel::instance()->tanksUpdated();
-	dataChanged(index, index);
-	return true;
-}
-
-int CylindersModel::rowCount(const QModelIndex &parent) const
-{
-	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(cyl->gasmix)) ||
-	     (DivePlannerPointsModel::instance()->currentMode() == DivePlannerPointsModel::NOTHING &&
-	      is_cylinder_used(&displayed_dive, index.row())))) {
-		QMessageBox::warning(MainWindow::instance(), 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.")),
-				     QMessageBox::Ok);
-		return;
-	}
-	beginRemoveRows(QModelIndex(), index.row(), index.row()); // yah, know, ugly.
-	rows--;
-	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;
-	}
+	static QPixmap trash = QPixmap(":trash").scaledToHeight(defaultIconMetrics().sz_small);
+	return trash;
 }
 
 WeightModel::WeightModel(QObject *parent) : CleanerTableModel(parent),
@@ -417,8 +42,6 @@ WeightModel::WeightModel(QObject *parent) : CleanerTableModel(parent),
 {
 	//enum Column {REMOVE, TYPE, WEIGHT};
 	setHeaderDataStrings(QStringList() << tr("") << tr("Type") << tr("Weight"));
-
-	initTrashIcon();
 }
 
 weightsystem_t *WeightModel::weightSystemAt(const QModelIndex &index)
@@ -1592,7 +1215,6 @@ bool DiveTripModel::setData(const QModelIndex &index, const QVariant &value, int
 	return diveItem->setData(index, value, role);
 }
 
-
 /*####################################################################
  *
  * Dive Computer Model
@@ -1605,8 +1227,6 @@ DiveComputerModel::DiveComputerModel(QMultiMap<QString, DiveComputerNode> &dcMap
 	setHeaderDataStrings(QStringList() << "" << tr("Model") << tr("Device ID") << tr("Nickname"));
 	dcWorkingMap = dcMap;
 	numRows = 0;
-
-	initTrashIcon();
 }
 
 QVariant DiveComputerModel::data(const QModelIndex &index, int role) const
@@ -2213,8 +1833,15 @@ GasSelectionModel *GasSelectionModel::instance()
 	return self.data();
 }
 
+//TODO: Remove this #include here when the issue below is fixed.
+#include "diveplannermodel.h"
 void GasSelectionModel::repopulate()
 {
+	/* TODO:
+	 * getGasList shouldn't be a member of DivePlannerPointsModel,
+	 * it has nothing to do with the current plain being calculated:
+	 * it's internal to the current_dive.
+	 */
 	setStringList(DivePlannerPointsModel::instance()->getGasList());
 }