void LegendWidget::drawVector(PlotCurve *c, QPainter *p, int x, int y, int l)
{
if (!c)
return;
VectorCurve *v = (VectorCurve*)c;
p->save();
if (d_plot->antialiasing())
p->setRenderHints(QPainter::Antialiasing);
QPen pen(v->color(), v->width(), Qt::SolidLine);
p->setPen(pen);
p->drawLine(x, y, x + l, y);
p->translate(x + l, y);
double pi=4*atan(-1.0);
int headLength = v->headLength();
int d=qRound(headLength*tan(pi*(double)v->headAngle()/180.0));
QPolygon endArray(3);
endArray[0] = QPoint(0, 0);
endArray[1] = QPoint(-headLength, d);
endArray[2] = QPoint(-headLength, -d);
if (v->filledArrowHead())
p->setBrush(QBrush(pen.color(), Qt::SolidPattern));
p->drawPolygon(endArray);
p->restore();
}
void LegendMarker::drawVector(QPainter *p, int x, int y, int l, int curveIndex) const
{
Graph *g = (Graph *)d_plot->parent();
if (!g)
return;
VectorCurve *v = (VectorCurve*)g->curve(curveIndex);
if (!v)
return;
p->save();
QPen pen(v->color(), v->width(), Qt::SolidLine);
p->setPen(pen);
QwtPainter::drawLine(p, x, y, x + l, y);
p->translate(x+l, y);
double pi=4*atan(-1.0);
int headLength = v->headLength();
int d=qRound(headLength*tan(pi*(double)v->headAngle()/180.0));
QPolygon endArray(3);
endArray[0] = QPoint(0, 0);
endArray[1] = QPoint(-headLength, d);
endArray[2] = QPoint(-headLength, -d);
if (v->filledArrowHead())
p->setBrush(QBrush(pen.color(), Qt::SolidPattern));
QwtPainter::drawPolygon(p,endArray);
p->restore();
}
void AssociationsDialog::changePlotAssociation(int curve, const QStringList& ass)
{
DataCurve *c = (DataCurve *)graph->dataCurve(curvesIndicesList[curve]);
if (!c)
return;
if (c->plotAssociation() == ass)
return;
QStringList lst = ass;
if (lst.count() == 1){
c->setTitle(lst[0]);
if (c->type() == Graph::Box)
((BoxCurve*)c)->loadData();
else if (c->type() == Graph::Pie)
((PieCurve*)c)->loadData();
else if (c->type() == Graph::Histogram)
((QwtHistogram*)c)->loadData();
} else if (lst.count() == 2){
c->setXColumnName(lst[0].remove("(X)"));
c->setTitle(lst[1].remove("(Y)"));
c->loadData();
} else if (lst.count() == 3){//curve with error bars
ErrorBarsCurve *er = (ErrorBarsCurve *)c;
QString xColName = lst[0].remove("(X)");
QString yColName = lst[1].remove("(Y)");
QString erColName = lst[2].remove("(xErr)").remove("(yErr)");
DataCurve *master_curve = graph->masterCurve(xColName, yColName);
if (!master_curve)
return;
int type = ErrorBarsCurve::Vertical;
if (ass.join(",").contains("(xErr)"))
type = ErrorBarsCurve::Horizontal;
er->setDirection(type);
er->setTitle(erColName);
if (master_curve != er->masterCurve())
er->setMasterCurve(master_curve);
else
er->loadData();
} else if (lst.count() == 4){
VectorCurve *v = (VectorCurve *)c;
v->setXColumnName(lst[0].remove("(X)"));
v->setTitle(lst[1].remove("(Y)"));
QString xEndCol = lst[2].remove("(X)").remove("(A)");
QString yEndCol = lst[3].remove("(Y)").remove("(M)");
if (v->vectorEndXAColName() != xEndCol || v->vectorEndYMColName() != yEndCol)
v->setVectorEnd(xEndCol, yEndCol);
else
v->loadData();
}
graph->notifyChanges();
}
void AssociationsDialog::changePlotAssociation(int curve, const QString& text)
{
DataCurve *c = dynamic_cast<DataCurve *>(graph->curve(curve)); //c_keys[curve]);
if (!c)
return;
if (c->plotAssociation() == text)
return;
QStringList lst = text.split(",", QString::SkipEmptyParts);
if (lst.count() == 1){
c->setTitle(lst[0]);
if (graph->curveType(curve) == Graph::Box)
dynamic_cast<BoxCurve*>(c)->loadData();
else if (graph->curveType(curve) == Graph::Pie)
dynamic_cast<QwtPieCurve*>(c)->loadData();
} else if (lst.count() == 2){
c->setXColumnName(lst[0].remove("(X)"));
c->setTitle(lst[1].remove("(Y)"));
c->loadData();
} else if (lst.count() == 3){//curve with error bars
QwtErrorPlotCurve *er = dynamic_cast<QwtErrorPlotCurve *>(c);
QString xColName = lst[0].remove("(X)");
QString yColName = lst[1].remove("(Y)");
QString erColName = lst[2].remove("(xErr)").remove("(yErr)");
DataCurve *master_curve = graph->masterCurve(xColName, yColName);
if (!master_curve)
return;
int type = QwtErrorPlotCurve::Vertical;
if (text.contains("(xErr)"))
type = QwtErrorPlotCurve::Horizontal;
er->setDirection(type);
er->setTitle(erColName);
if (master_curve != er->masterCurve())
er->setMasterCurve(master_curve);
else
er->loadData();
} else if (lst.count() == 4) {
VectorCurve *v = dynamic_cast<VectorCurve *>(c);
v->setXColumnName(lst[0].remove("(X)"));
v->setTitle(lst[1].remove("(Y)"));
QString xEndCol = lst[2].remove("(X)").remove("(A)");
QString yEndCol = lst[3].remove("(Y)").remove("(M)");
if (v->vectorEndXAColName() != xEndCol || v->vectorEndYMColName() != yEndCol)
v->setVectorEnd(xEndCol, yEndCol);
else
v->loadData();
}
graph->notifyChanges();
}
