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subsurface/qt-ui/profile/diveprofileitem.cpp
Tomaz Canabrava cc37d2e94a Make the mean depth line follow the size of the axis. 
When we move, shrink or expand the depth axis, the
meandepth should also change it's position. this
patch adds that.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2014-02-12 10:33:14 -08:00

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#include "diveprofileitem.h"
#include "diveplotdatamodel.h"
#include "divecartesianaxis.h"
#include "graphicsview-common.h"
#include "divetextitem.h"
#include "profile.h"
#include "dive.h"
#include "profilegraphics.h"
#include "preferences.h"
#include "helpers.h"
#include <QPen>
#include <QPainter>
#include <QLinearGradient>
#include <QDebug>
#include <QApplication>
#include <QGraphicsItem>
#include <QSettings>
AbstractProfilePolygonItem::AbstractProfilePolygonItem(): QObject(), QGraphicsPolygonItem(),
hAxis(NULL), vAxis(NULL), dataModel(NULL), hDataColumn(-1), vDataColumn(-1)
{
connect(PreferencesDialog::instance(), SIGNAL(settingsChanged()), this, SLOT(preferencesChanged()));
}
void AbstractProfilePolygonItem::preferencesChanged()
{
}
void AbstractProfilePolygonItem::setHorizontalAxis(DiveCartesianAxis* horizontal)
{
hAxis = horizontal;
connect(hAxis, SIGNAL(sizeChanged()), this, SLOT(modelDataChanged()));
modelDataChanged();
}
void AbstractProfilePolygonItem::setHorizontalDataColumn(int column)
{
hDataColumn = column;
modelDataChanged();
}
void AbstractProfilePolygonItem::setModel(DivePlotDataModel* model)
{
dataModel = model;
connect(dataModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelDataChanged(QModelIndex, QModelIndex)));
connect(dataModel, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)), this, SLOT(modelDataRemoved(QModelIndex, int, int)));
modelDataChanged();
}
void AbstractProfilePolygonItem::modelDataRemoved(const QModelIndex& parent, int from, int to)
{
setPolygon(QPolygonF());
qDeleteAll(texts);
texts.clear();
}
void AbstractProfilePolygonItem::setVerticalAxis(DiveCartesianAxis* vertical)
{
vAxis = vertical;
connect(vAxis, SIGNAL(sizeChanged()), this, SLOT(modelDataChanged()));
connect(vAxis, SIGNAL(maxChanged()), this, SLOT(modelDataChanged()));
modelDataChanged();
}
void AbstractProfilePolygonItem::setVerticalDataColumn(int column)
{
vDataColumn = column;
modelDataChanged();
}
bool AbstractProfilePolygonItem::shouldCalculateStuff(const QModelIndex& topLeft, const QModelIndex& bottomRight)
{
if (!hAxis || !vAxis)
return false;
if (!dataModel || dataModel->rowCount() == 0)
return false;
if (hDataColumn == -1 || vDataColumn == -1)
return false;
if ( topLeft.isValid() && bottomRight.isValid()){
if ((topLeft.column() >= vDataColumn || topLeft.column() >= hDataColumn ) &&
(bottomRight.column() <= vDataColumn || topLeft.column() <= hDataColumn )){
return true;
}
}
return true;
}
void AbstractProfilePolygonItem::modelDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight)
{
// We don't have enougth data to calculate things, quit.
// Calculate the polygon. This is the polygon that will be painted on screen
// on the ::paint method. Here we calculate the correct position of the points
// regarting our cartesian plane ( made by the hAxis and vAxis ), the QPolygonF
// is an array of QPointF's, so we basically get the point from the model, convert
// to our coordinates, store. no painting is done here.
QPolygonF poly;
for (int i = 0, modelDataCount = dataModel->rowCount(); i < modelDataCount; i++) {
qreal horizontalValue = dataModel->index(i, hDataColumn).data().toReal();
qreal verticalValue = dataModel->index(i, vDataColumn).data().toReal();
QPointF point( hAxis->posAtValue(horizontalValue), vAxis->posAtValue(verticalValue));
poly.append(point);
}
setPolygon(poly);
qDeleteAll(texts);
texts.clear();
}
DiveProfileItem::DiveProfileItem() : show_reported_ceiling(0), reported_ceiling_in_red(0)
{
}
void DiveProfileItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget) {
Q_UNUSED(widget);
if(polygon().isEmpty())
return;
// This paints the Polygon + Background. I'm setting the pen to QPen() so we don't get a black line here,
// after all we need to plot the correct velocities colors later.
setPen(Qt::NoPen);
QGraphicsPolygonItem::paint(painter, option, widget);
// Here we actually paint the boundaries of the Polygon using the colors that the model provides.
// Those are the speed colors of the dives.
QPen pen;
pen.setCosmetic(true);
pen.setWidth(2);
QPolygonF poly = polygon();
// This paints the colors of the velocities.
for (int i = 1, count = dataModel->rowCount(); i < count; i++) {
QModelIndex colorIndex = dataModel->index(i, DivePlotDataModel::COLOR);
pen.setBrush(QBrush(colorIndex.data(Qt::BackgroundRole).value<QColor>()));
painter->setPen(pen);
painter->drawLine(poly[i-1],poly[i]);
}
}
void DiveProfileItem::modelDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight)
{
if(!shouldCalculateStuff(topLeft, bottomRight))
return;
AbstractProfilePolygonItem::modelDataChanged(topLeft, bottomRight);
if (polygon().isEmpty())
return;
show_reported_ceiling = prefs.profile_dc_ceiling;
reported_ceiling_in_red = prefs.profile_red_ceiling;
/* Show any ceiling we may have encountered */
if (prefs.profile_dc_ceiling && !prefs.profile_red_ceiling) {
QPolygonF p = polygon();
plot_data *entry = dataModel->data().entry + dataModel->rowCount()-1;
for (int i = dataModel->rowCount() - 1; i >= 0; i--, entry--) {
if (!entry->in_deco) {
/* not in deco implies this is a safety stop, no ceiling */
p.append(QPointF(hAxis->posAtValue(entry->sec), vAxis->posAtValue(0)));
} else if (entry->stopdepth < entry->depth) {
p.append(QPointF(hAxis->posAtValue(entry->sec), vAxis->posAtValue(entry->stopdepth)));
} else {
p.append(QPointF(hAxis->posAtValue(entry->sec), vAxis->posAtValue(entry->depth)));
}
}
setPolygon(p);
}
// This is the blueish gradient that the Depth Profile should have.
// It's a simple QLinearGradient with 2 stops, starting from top to bottom.
QLinearGradient pat(0, polygon().boundingRect().top(), 0, polygon().boundingRect().bottom());
pat.setColorAt(1, getColor(DEPTH_BOTTOM));
pat.setColorAt(0, getColor(DEPTH_TOP));
setBrush(QBrush(pat));
int last = -1;
for (int i = 0, count = dataModel->rowCount(); i < count; i++) {
struct plot_data *entry = dataModel->data().entry+i;
if (entry->depth < 2000)
continue;
if ((entry == entry->max[2]) && entry->depth / 100 != last) {
plot_depth_sample(entry, Qt::AlignHCenter | Qt::AlignBottom, getColor(SAMPLE_DEEP));
last = entry->depth / 100;
}
if ((entry == entry->min[2]) && entry->depth / 100 != last) {
plot_depth_sample(entry, Qt::AlignHCenter | Qt::AlignTop, getColor(SAMPLE_SHALLOW));
last = entry->depth / 100;
}
if (entry->depth != last)
last = -1;
}
}
void DiveProfileItem::preferencesChanged()
{
//TODO: Only modelDataChanged() here if we need to rebuild the graph ( for instance,
// if the prefs.profile_dc_ceiling are enabled, but prefs.profile_red_ceiling is disabled
// and only if it changed something. let's not waste cpu cycles repoloting something we don't need to.
modelDataChanged();
}
void DiveProfileItem::plot_depth_sample(struct plot_data *entry,QFlags<Qt::AlignmentFlag> flags,const QColor& color)
{
int decimals;
double d = get_depth_units(entry->depth, &decimals, NULL);
DiveTextItem *item = new DiveTextItem(this);
item->setPos(hAxis->posAtValue(entry->sec), vAxis->posAtValue(entry->depth));
item->setText(QString("%1").arg(d, 0, 'f', 1));
item->setAlignment(flags);
item->setBrush(color);
texts.append(item);
}
DiveTemperatureItem::DiveTemperatureItem()
{
QPen pen;
pen.setBrush(QBrush(getColor(::TEMP_PLOT)));
pen.setCosmetic(true);
pen.setWidth(2);
setPen(pen);
}
void DiveTemperatureItem::modelDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight)
{
int last = -300, last_printed_temp = 0, sec = 0;
// We don't have enougth data to calculate things, quit.
if (!shouldCalculateStuff(topLeft, bottomRight))
return;
qDeleteAll(texts);
texts.clear();
// Ignore empty values. things do not look good with '0' as temperature in kelvin...
QPolygonF poly;
for (int i = 0, modelDataCount = dataModel->rowCount(); i < modelDataCount; i++) {
int mkelvin = dataModel->index(i, vDataColumn).data().toInt();
if (!mkelvin)
continue;
sec = dataModel->index(i, hDataColumn).data().toInt();
QPointF point( hAxis->posAtValue(sec), vAxis->posAtValue(mkelvin));
poly.append(point);
/* don't print a temperature
* if it's been less than 5min and less than a 2K change OR
* if it's been less than 2min OR if the change from the
* last print is less than .4K (and therefore less than 1F) */
if (((sec < last + 300) && (abs(mkelvin - last_printed_temp) < 2000)) ||
(sec < last + 120) ||
(abs(mkelvin - last_printed_temp) < 400))
continue;
last = sec;
if (mkelvin > 200000)
createTextItem(sec,mkelvin);
last_printed_temp = mkelvin;
}
setPolygon(poly);
/* it would be nice to print the end temperature, if it's
* different or if the last temperature print has been more
* than a quarter of the dive back */
int last_temperature = dataModel->data(dataModel->index(dataModel->rowCount()-1, DivePlotDataModel::TEMPERATURE)).toInt();
if (last_temperature > 200000 &&
((abs(last_temperature - last_printed_temp) > 500) || ((double)last / (double)sec < 0.75))) {
createTextItem(sec, last_temperature);
}
}
void DiveTemperatureItem::createTextItem(int sec, int mkelvin)
{
double deg;
const char *unit;
static text_render_options_t tro = {TEMP_TEXT_SIZE, TEMP_TEXT};
deg = get_temp_units(mkelvin, &unit);
DiveTextItem *text = new DiveTextItem(this);
text->setAlignment(Qt::AlignRight | Qt::AlignBottom);
text->setBrush(getColor(TEMP_TEXT));
text->setPos(QPointF(hAxis->posAtValue(sec), vAxis->posAtValue(mkelvin)));
text->setText(QString("%1%2").arg(deg, 0, 'f', 1).arg(unit));
// text->setSize(TEMP_TEXT_SIZE); //TODO: TEXT SIZE!
texts.append(text);
}
void DiveTemperatureItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
if(polygon().isEmpty())
return;
painter->setPen(pen());
painter->drawPolyline(polygon());
}
void DiveGasPressureItem::modelDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight)
{
// We don't have enougth data to calculate things, quit.
if (!shouldCalculateStuff(topLeft, bottomRight))
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();
for (int i = 0, count = dataModel->rowCount(); i < count; i++) {
plot_data* entry = dataModel->data().entry + i;
int mbar = GET_PRESSURE(entry);
if (entry->cylinderindex != last_index) {
polygons.append(QPolygonF()); // this is the polygon that will be actually drawned on screen.
last_index = entry->cylinderindex;
}
if (!mbar) {
continue;
}
QPointF point(hAxis->posAtValue(entry->sec), vAxis->posAtValue(mbar));
boundingPoly.push_back(point); // The BoundingRect
polygons.last().push_back(point); // The polygon thta will be plotted.
}
setPolygon(boundingPoly);
qDeleteAll(texts);
texts.clear();
int mbar, cyl;
int seen_cyl[MAX_CYLINDERS] = { false, };
int last_pressure[MAX_CYLINDERS] = { 0, };
int last_time[MAX_CYLINDERS] = { 0, };
struct plot_data *entry;
struct dive *dive = getDiveById(dataModel->id());
Q_ASSERT(dive != NULL);
cyl = -1;
for (int i = 0, count = dataModel->rowCount(); i < count; i++) {
entry = dataModel->data().entry + i;
mbar = GET_PRESSURE(entry);
if (!mbar)
continue;
if (cyl != entry->cylinderindex) {
cyl = entry->cylinderindex;
if (!seen_cyl[cyl]) {
plot_pressure_value(mbar, entry->sec, Qt::AlignRight | Qt::AlignTop);
plot_gas_value(mbar, entry->sec, Qt::AlignRight | Qt::AlignBottom,
get_o2(&dive->cylinder[cyl].gasmix),
get_he(&dive->cylinder[cyl].gasmix));
seen_cyl[cyl] = true;
}
}
last_pressure[cyl] = mbar;
last_time[cyl] = entry->sec;
}
for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) {
if (last_time[cyl]) {
plot_pressure_value(last_pressure[cyl], last_time[cyl], Qt::AlignRight | Qt::AlignTop);
}
}
}
void DiveGasPressureItem::plot_pressure_value(int mbar, int sec, QFlags<Qt::AlignmentFlag> flags)
{
const char *unit;
int pressure = get_pressure_units(mbar, &unit);
DiveTextItem *text = new DiveTextItem(this);
text->setPos(hAxis->posAtValue(sec), vAxis->posAtValue(mbar)-0.5);
text->setText(QString("%1 %2").arg(pressure).arg(unit));
text->setAlignment(flags);
text->setBrush(getColor(PRESSURE_TEXT));
texts.push_back(text);
}
void DiveGasPressureItem::plot_gas_value(int mbar, int sec, QFlags<Qt::AlignmentFlag> flags, int o2, int he)
{
QString gas = (is_air(o2, he)) ? tr("air") :
(he == 0) ? QString(tr("EAN%1")).arg((o2 + 5) / 10) :
QString("%1/%2").arg((o2 + 5) / 10).arg((he + 5) / 10);
DiveTextItem *text = new DiveTextItem(this);
text->setPos(hAxis->posAtValue(sec), vAxis->posAtValue(mbar));
text->setText(gas);
text->setAlignment(flags);
text->setBrush(getColor(PRESSURE_TEXT));
texts.push_back(text);
}
void DiveGasPressureItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
if(polygon().isEmpty())
return;
QPen pen;
pen.setCosmetic(true);
pen.setWidth(2);
struct dive *d = getDiveById(dataModel->id());
if (!d)
return;
struct plot_data *entry = dataModel->data().entry;
Q_FOREACH(const QPolygonF& poly, polygons) {
for (int i = 1, count = poly.count(); i < count; i++, entry++) {
pen.setBrush(getSacColor(entry->sac, d->sac));
painter->setPen(pen);
painter->drawLine(poly[i-1],poly[i]);
}
}
}
DiveCalculatedCeiling::DiveCalculatedCeiling() : is3mIncrement(false), gradientFactor(new DiveTextItem(this))
{
gradientFactor->setY(0);
gradientFactor->setBrush(getColor(PRESSURE_TEXT));
gradientFactor->setAlignment(Qt::AlignHCenter | Qt::AlignBottom);
preferencesChanged();
}
void DiveCalculatedCeiling::modelDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight)
{
// We don't have enougth data to calculate things, quit.
if (!shouldCalculateStuff(topLeft, bottomRight))
return;
AbstractProfilePolygonItem::modelDataChanged(topLeft, bottomRight);
// Add 2 points to close the polygon.
QPolygonF poly = polygon();
if (poly.isEmpty())
return;
QPointF p1 = poly.first();
QPointF p2 = poly.last();
poly.prepend(QPointF(p1.x(), vAxis->posAtValue(0)));
poly.append(QPointF(p2.x(), vAxis->posAtValue(0)));
setPolygon(poly);
QLinearGradient pat(0, polygon().boundingRect().top(), 0, polygon().boundingRect().bottom());
pat.setColorAt(0, getColor(CALC_CEILING_SHALLOW));
pat.setColorAt(1, getColor(CALC_CEILING_DEEP));
setPen(QPen(QBrush(Qt::NoBrush),0));
setBrush(pat);
gradientFactor->setX(poly.boundingRect().width()/2 + poly.boundingRect().x());
gradientFactor->setText(QString("GF %1/%2").arg(prefs.gflow).arg(prefs.gfhigh));
}
void DiveCalculatedCeiling::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
if(polygon().isEmpty())
return;
QGraphicsPolygonItem::paint(painter, option, widget);
}
DiveCalculatedTissue::DiveCalculatedTissue()
{
preferencesChanged();
}
void DiveCalculatedTissue::preferencesChanged()
{
QSettings s;
s.beginGroup("TecDetails");
setVisible(s.value("calcalltissues").toBool() && s.value("calcceiling").toBool());
}
void DiveReportedCeiling::modelDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight)
{
if(!shouldCalculateStuff(topLeft, bottomRight))
return;
QPolygonF p;
p.append(QPointF(hAxis->posAtValue(0), vAxis->posAtValue(0)));
plot_data *entry = dataModel->data().entry;
for (int i = 0, count = dataModel->rowCount(); i < count; i++, entry++) {
if (entry->in_deco && entry->stopdepth) {
if (entry->stopdepth < entry->depth) {
p.append(QPointF(hAxis->posAtValue(entry->sec), vAxis->posAtValue(entry->stopdepth)));
} else {
p.append(QPointF(hAxis->posAtValue(entry->sec), vAxis->posAtValue(entry->depth)));
}
} else {
p.append(QPointF(hAxis->posAtValue(entry->sec), vAxis->posAtValue(0)));
}
}
setPolygon(p);
QLinearGradient pat(0, p.boundingRect().top(), 0, p.boundingRect().bottom());
pat.setColorAt(0, getColor(CEILING_SHALLOW));
pat.setColorAt(1, getColor(CEILING_DEEP));
setPen(QPen(QBrush(Qt::NoBrush),0));
setBrush(pat);
}
void DiveCalculatedCeiling::preferencesChanged()
{
QSettings s;
s.beginGroup("TecDetails");
bool shouldShow3mIncrement = s.value("calcceiling3m").toBool();
if ( dataModel && is3mIncrement != shouldShow3mIncrement){
// recalculate that part.
dataModel->calculateDecompression();
}
is3mIncrement = shouldShow3mIncrement;
setVisible(s.value("calcceiling").toBool());
}
void DiveReportedCeiling::preferencesChanged()
{
QSettings s;
s.beginGroup("TecDetails");
setVisible(s.value("redceiling").toBool());
}
void DiveReportedCeiling::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
if(polygon().isEmpty())
return;
QGraphicsPolygonItem::paint(painter, option, widget);
}
MeanDepthLine::MeanDepthLine() : meanDepth(0), leftText(new DiveTextItem(this)), rightText(new DiveTextItem(this))
{
leftText->setAlignment(Qt::AlignRight | Qt::AlignBottom);
leftText->setBrush(getColor(MEAN_DEPTH));
rightText->setAlignment(Qt::AlignLeft | Qt::AlignBottom);
rightText->setBrush(getColor(MEAN_DEPTH));
leftText->setPos(0, 0);
rightText->setPos(line().length(), 0);
}
void MeanDepthLine::setLine(qreal x1, qreal y1, qreal x2, qreal y2)
{
QGraphicsLineItem::setLine(x1, y1, x2, y2);
leftText->setPos(x1, 0);
rightText->setPos(x2, 0);
}
void MeanDepthLine::setMeanDepth(int value)
{
leftText->setText(get_depth_string(value, false, false));
rightText->setText(get_depth_string(value, false, false));
meanDepth = value;
}
void MeanDepthLine::setAxis(DiveCartesianAxis* a)
{
connect(a, SIGNAL(sizeChanged()), this, SLOT(axisLineChanged()));
}
void MeanDepthLine::axisLineChanged()
{
DiveCartesianAxis *axis = qobject_cast<DiveCartesianAxis*>(sender());
animateMoveTo(x(),axis->posAtValue(meanDepth));
}
void PartialPressureGasItem::modelDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight)
{
//AbstractProfilePolygonItem::modelDataChanged();
if (!shouldCalculateStuff(topLeft, bottomRight))
return;
plot_data *entry = dataModel->data().entry;
QPolygonF poly;
alertPoly.clear();
QSettings s;
s.beginGroup("TecDetails");
double threshould = s.value(threshouldKey).toDouble();
for(int i = 0; i < dataModel->rowCount(); i++, entry++){
double value = dataModel->index(i, vDataColumn).data().toDouble();
int time = dataModel->index(i, hDataColumn).data().toInt();
QPointF point(hAxis->posAtValue(time), vAxis->posAtValue(value));
poly.push_back( point );
if (value >= threshould)
alertPoly.push_back(point);
}
setPolygon(poly);
/*
createPPLegend(trUtf8("pN" UTF8_SUBSCRIPT_2),getColor(PN2), legendPos);
*/
}
void PartialPressureGasItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
painter->setPen(normalColor);
painter->drawPolyline(polygon());
painter->setPen(alertColor);
painter->drawPolyline(alertPoly);
}
void PartialPressureGasItem::setThreshouldSettingsKey(const QString& threshouldSettingsKey)
{
threshouldKey = threshouldSettingsKey;
}
PartialPressureGasItem::PartialPressureGasItem()
{
}
void PartialPressureGasItem::preferencesChanged()
{
QSettings s;
s.beginGroup("TecDetails");
setVisible( s.value(visibilityKey).toBool() );
}
void PartialPressureGasItem::setVisibilitySettingsKey(const QString& key)
{
visibilityKey = key;
}
void PartialPressureGasItem::setColors(const QColor& normal, const QColor& alert)
{
normalColor = normal;
alertColor = alert;
}
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