void Legend::SetOrientation(Orientation orientation, std::string const& title)
{
INFO0;
if(!legend_.GetListOfPrimitives()) return;
std::vector<std::string> entries;
auto list = legend_.GetListOfPrimitives()->MakeIterator();
TLegendEntry* entry;
while ((entry = static_cast<TLegendEntry*>(list->Next()))) entries.emplace_back(entry->GetLabel());
SetOrientation(orientation, entries, title);
SetTitle(title);
}
void PlotAlignmentValidation::modifySSHistAndLegend(THStack* hs, TLegend* legend)
{
// Add mean-y-values to the legend and scale the histograms.
Double_t legendY = 0.80;
if (hs->GetHists()->GetSize() > 3)
legendY -= 0.01 * (hs->GetHists()->GetSize() - 3);
if (legendY < 0.6) {
std::cerr << "Warning: Huge legend!" << std::endl;
legendY = 0.6;
}
legend->SetY1(legendY);
// Loop over all profiles
TProfile* prof = 0;
TIter next(hs->GetHists());
Int_t index = 0;
while ((prof = (TProfile*)next())) {
//Scaling: from cm to um
Double_t scale = 10000;
prof->Scale(scale);
Double_t stats[6] = {0};
prof->GetStats(stats);
std::ostringstream legendtext;
legendtext.precision(3);
legendtext << fixed; // to always show 3 decimals
legendtext << ": y mean = " << stats[4]/stats[0]*scale << " #mum";
TLegendEntry* entry = (TLegendEntry*)legend->GetListOfPrimitives()->At(index);
if (entry == 0)
cout << "PlotAlignmentValidation::PlotAlignmentValidation::modifySSLegend: Bad legend!" << endl;
else
entry->SetLabel((entry->GetLabel() + legendtext.str()).c_str());
index++;
}
}
// A macro to print out a TLegend - can be considered a smarter TLegend::ls().
// If no TLegend pointer is passed, it loops over the TLegends drawn on current TPad.
void PrintLegend(TLegend *leg=0) {
if ( leg==0 ) {
if (gROOT->GetListOfCanvases()->GetEntries()==0) return;
TList *padprim = gPad->GetListOfPrimitives();
for (int i=0; i<padprim->GetEntries(); i++) {
TObject *myobj = gROOT->FindObject(padprim->At(i)->GetName());
if ( myobj != 0 && myobj->InheritsFrom("TLegend") )
PrintLegend((TLegend*)myobj); }
return;
}
TList *ents = leg->GetListOfPrimitives();
for (int i=0; i<ents->GetEntries(); i++) {
TLegendEntry *le = (TLegendEntry*)ents->At(i);
TString s( le->GetLabel() );
TObject *obj = le->GetObject();
if (!obj) continue; // if no object, this can be the title line, so skip
TString color = "???";
if ( obj->InheritsFrom("TH1") )
color = gROOT->GetListOfColors()->At(((TH1*)obj)->GetLineColor())->GetName();
cout << "Item "; cout.width(2); cout.fill('0'); cout << i << " plotted in ";
cout.width(7); cout.fill(' '); cout << color << " : " << s << endl;
}
//leg->ls();
}