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#include "tankitem.h"
#include "diveplotdatamodel.h"
#include "divetextitem.h"
#include "profile.h"
#include <QPen>
TankItem::TankItem(QObject *parent) :
QGraphicsRectItem(),
dataModel(0),
pInfoEntry(0),
pInfoNr(0)
{
height = 3;
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;
memset(&diveCylinderStore, 0, sizeof(diveCylinderStore));
}
TankItem::~TankItem()
{
// Should this be clear_dive(diveCylinderStore)?
for (int i = 0; i < MAX_CYLINDERS; i++)
free((void *)diveCylinderStore.cylinder[i].type.description);
}
void TankItem::setData(DivePlotDataModel *model, struct plot_info *plotInfo, struct dive *d)
{
free(pInfoEntry);
// the plotInfo and dive structures passed in could become invalid before we stop using them,
// so copy the data that we need
int size = plotInfo->nr * sizeof(plotInfo->entry[0]);
pInfoEntry = (struct plot_data *)malloc(size);
pInfoNr = plotInfo->nr;
memcpy(pInfoEntry, plotInfo->entry, size);
copy_cylinders(d, &diveCylinderStore, false);
dataModel = model;
connect(dataModel, SIGNAL(dataChanged(QModelIndex, QModelIndex)), this, SLOT(modelDataChanged(QModelIndex, QModelIndex)), Qt::UniqueConnection);
modelDataChanged();
}
void TankItem::createBar(qreal x, qreal w, struct gasmix *gas)
{
// 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);
label->setZValue(101);
}
void TankItem::modelDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
{
// We don't have enougth data to calculate things, quit.
if (!dataModel || !pInfoEntry || !pInfoNr)
return;
// remove the old rectangles
foreach (QGraphicsRectItem *r, rects) {
delete(r);
}
rects.clear();
// walk the list and figure out which tanks go where
struct plot_data *entry = pInfoEntry;
int cylIdx = entry->cylinderindex;
int i = -1;
int startTime = 0;
struct gasmix *gas = &diveCylinderStore.cylinder[cylIdx].gasmix;
qreal width, left;
while (++i < pInfoNr) {
entry = &pInfoEntry[i];
if (entry->cylinderindex == cylIdx)
continue;
width = hAxis->posAtValue(entry->sec) - hAxis->posAtValue(startTime);
left = hAxis->posAtValue(startTime);
createBar(left, width, gas);
cylIdx = entry->cylinderindex;
gas = &diveCylinderStore.cylinder[cylIdx].gasmix;
startTime = entry->sec;
}
width = hAxis->posAtValue(entry->sec) - hAxis->posAtValue(startTime);
left = hAxis->posAtValue(startTime);
createBar(left, width, gas);
}
void TankItem::setHorizontalAxis(DiveCartesianAxis *horizontal)
{
hAxis = horizontal;
connect(hAxis, SIGNAL(sizeChanged()), this, SLOT(modelDataChanged()));
modelDataChanged();
}
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