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// SPDX-License-Identifier: GPL-2.0
#include "profile-widget/tankitem.h"
#include "qt-models/diveplotdatamodel.h"
#include "profile-widget/divetextitem.h"
#include "core/profile.h"
#include <QPen>
static const qreal height = 3.0;
TankItem::TankItem(QObject *parent) :
QObject(parent),
plotEndTime(-1)
{
QColor red(PERSIANRED1);
QColor blue(AIR_BLUE);
QColor yellow(NITROX_YELLOW);
QColor green(NITROX_GREEN);
QLinearGradient nitroxGradient(QPointF(0, 0), QPointF(0, height));
nitroxGradient.setColorAt(0.0, green);
nitroxGradient.setColorAt(0.49, green);
nitroxGradient.setColorAt(0.5, yellow);
nitroxGradient.setColorAt(1.0, yellow);
nitrox = nitroxGradient;
oxygen = green;
QLinearGradient trimixGradient(QPointF(0, 0), QPointF(0, height));
trimixGradient.setColorAt(0.0, green);
trimixGradient.setColorAt(0.49, green);
trimixGradient.setColorAt(0.5, red);
trimixGradient.setColorAt(1.0, red);
trimix = trimixGradient;
air = blue;
hAxis = nullptr;
}
void TankItem::setData(DivePlotDataModel *model, struct plot_info *plotInfo, struct dive *d)
{
// If there is nothing to plot, quit early.
if (plotInfo->nr <= 0) {
plotEndTime = -1;
return;
}
// Find correct end of the dive plot for correct end of the tankbar.
struct plot_data *last_entry = &plotInfo->entry[plotInfo->nr - 1];
plotEndTime = last_entry->sec;
// Stay informed of changes to the tanks.
connect(model, SIGNAL(dataChanged(QModelIndex, QModelIndex)), this, SLOT(modelDataChanged(QModelIndex, QModelIndex)), Qt::UniqueConnection);
modelDataChanged();
}
void TankItem::createBar(int startTime, int stopTime, struct gasmix gas)
{
qreal x = hAxis->posAtValue(startTime);
qreal w = hAxis->posAtValue(stopTime) - hAxis->posAtValue(startTime);
// pick the right gradient, size, position and text
QGraphicsRectItem *rect = new QGraphicsRectItem(x, 0, w, height, this);
if (gasmix_is_air(gas))
rect->setBrush(air);
else if (gas.he.permille)
rect->setBrush(trimix);
else if (gas.o2.permille == 1000)
rect->setBrush(oxygen);
else
rect->setBrush(nitrox);
rect->setPen(QPen(QBrush(), 0.0)); // get rid of the thick line around the rectangle
rects.push_back(rect);
DiveTextItem *label = new DiveTextItem(rect);
label->setText(gasname(gas));
label->setBrush(Qt::black);
label->setPos(x + 1, 0);
label->setAlignment(Qt::AlignBottom | Qt::AlignRight);
#ifdef SUBSURFACE_MOBILE
label->setPos(x + 1, -2.5);
#endif
label->setZValue(101);
}
void TankItem::modelDataChanged(const QModelIndex&, const QModelIndex&)
{
// We don't have enougth data to calculate things, quit.
if (plotEndTime < 0)
return;
// remove the old rectangles
qDeleteAll(rects);
rects.clear();
// Bail if there are no cylinders
if (displayed_dive.cylinders.nr <= 0)
return;
// get the information directly from the displayed_dive (the dc always exists)
struct divecomputer *dc = get_dive_dc(&displayed_dive, dc_number);
// start with the first gasmix and at the start of the dive
int cyl = explicit_first_cylinder(&displayed_dive, dc);
struct gasmix gasmix = get_cylinder(&displayed_dive, cyl)->gasmix;
int startTime = 0;
// work through all the gas changes and add the rectangle for each gas while it was used
const struct event *ev = get_next_event(dc->events, "gaschange");
while (ev && (int)ev->time.seconds < plotEndTime) {
createBar(startTime, ev->time.seconds, gasmix);
startTime = ev->time.seconds;
gasmix = get_gasmix_from_event(&displayed_dive, ev);
ev = get_next_event(ev->next, "gaschange");
}
createBar(startTime, plotEndTime, gasmix);
}
void TankItem::setHorizontalAxis(DiveCartesianAxis *horizontal)
{
hAxis = horizontal;
connect(hAxis, SIGNAL(sizeChanged()), this, SLOT(modelDataChanged()));
modelDataChanged();
}
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