1 files changed, 120 insertions, 0 deletions
diff --git a/desktop-widgets/profile/tankitem.cpp b/desktop-widgets/profile/tankitem.cpp
new file mode 100644
index 000000000..c0e75a371
--- /dev/null
+++ b/desktop-widgets/profile/tankitem.cpp
@@ -0,0 +1,120 @@
+#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();
+}