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Add the gas pressure plot.

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Added the Gas Pressure Graph with the related Model Changes
to access the cylinder index, pressure, interpolated pressure
and SAC.

The plot does not correctly plot its color right now but it's not hard to
do.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Tomaz Canabrava 2014-01-17 15:34:15 -02:00 • committed by Dirk Hohndel
parent 779c1b6738
commit 4ff73cf537
6 changed files with 80 additions and 14 deletions
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50
qt-ui/profile/diveprofileitem.cpp
View file

@ -2,6 +2,7 @@
#include "diveplotdatamodel.h"
#include "divecartesianaxis.h"
#include "graphicsview-common.h"
#include "profile.h"
#include <QPen>
#include <QPainter>
@ -132,3 +133,52 @@ void DiveTemperatureItem::paint(QPainter* painter, const QStyleOptionGraphicsIte
painter->setPen(pen());
painter->drawPolyline(polygon());
}
void DiveGasPressureItem::modelDataChanged()
{
// We don't have enougth data to calculate things, quit.
if (!hAxis || !vAxis || !dataModel || hDataColumn == -1 || vDataColumn == -1)
return;
int last_index = -1;
int lift_pen = false;
int first_plot = true;
QPolygonF boundingPoly; // This is the "Whole Item", but a pressure can be divided in N Polygons.
polygons.clear();
#define M_PRESSURE( ROW )
for (int i = 0; i < dataModel->rowCount(); i++) {
int sPressure = dataModel->index(i, DivePlotDataModel::SENSOR_PRESSURE).data().toInt();
int iPressure = dataModel->index(i, DivePlotDataModel::INTERPOLATED_PRESSURE).data().toInt();
int cylIndex = dataModel->index(i, DivePlotDataModel::CYLINDERINDEX).data().toInt();
int sec = dataModel->index(i, DivePlotDataModel::TIME).data().toInt();
int mbar = sPressure ? sPressure : iPressure;
if (cylIndex != last_index) {
polygons.append(QPolygonF()); // this is the polygon that will be actually drawned on screen.
last_index = cylIndex;
}
if (!mbar) {
continue;
}
QPointF point(hAxis->posAtValue(sec), vAxis->posAtValue(mbar));
boundingPoly.push_back(point); // The BoundingRect
polygons.last().push_back(point); // The polygon thta will be plotted.
}
setPolygon(boundingPoly);
}
void DiveGasPressureItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
QPen pen;
pen.setCosmetic(true);
pen.setWidth(2);
Q_FOREACH(const QPolygonF& poly, polygons){
for (int i = 1, count = poly.count(); i < count; i++) {
pen.setBrush(QBrush(Qt::red)); // TODO: Fix the color.
painter->setPen(pen);
painter->drawLine(poly[i-1],poly[i]);
}
}
}