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Reference Guide
rtext_align.cxx File Reference

Detailed Description

This macro demonstrate the text align attribute for RText.

* Copyright (C) 1995-2021, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
#include "ROOT/RCanvas.hxx"
#include "ROOT/RColor.hxx"
#include "ROOT/RText.hxx"
#include "ROOT/RBox.hxx"
#include "ROOT/RPadPos.hxx"
using namespace ROOT::Experimental;
void rtext_align()
auto canvas = RCanvas::Create("RText align example");
auto box = canvas->Add<RBox>(RPadPos(0.1_normal, 0.1_normal), RPadPos(0.9_normal, 0.9_normal));
box->border.style = RAttrLine::kStyle6;
auto drawText = [&canvas](double x, double y, RAttrText::EAlign align, const std::string &lbl) {
auto dbox = canvas->Add<RBox>(RPadPos(x-0.003, y-0.003), RPadPos(x+0.003, y+0.003));
dbox->fill.color = RColor::kRed;
dbox->fill.style = RAttrFill::kSolid;
auto text = canvas->Add<RText>(RPadPos(x, y), lbl);
text->text.size = 0.07;
text->text.align = align;
drawText(0.1, 0.9, RAttrText::kLeftTop, "kLeftTop");
drawText(0.1, 0.5, RAttrText::kLeftCenter, "kLeftCenter");
drawText(0.1, 0.1, RAttrText::kLeftBottom, "kLeftBottom");
drawText(0.9, 0.9, RAttrText::kRightTop, "kRightTop");
drawText(0.9, 0.5, RAttrText::kRightCenter, "kRightCenter");
drawText(0.9, 0.1, RAttrText::kRightBottom, "kRightBottom");
drawText(0.5, 0.5, RAttrText::kCenter, "kCenter");
drawText(0.5, 0.9, RAttrText::kCenterTop, "kCenterTop");
drawText(0.5, 0.1, RAttrText::kCenterBottom, "kCenterBottom");
@ kRed
Definition: Rtypes.h:66
@ kSolid
Definition: TAttLine.h:48
TText * text
void box(Int_t pat, Double_t x1, Double_t y1, Double_t x2, Double_t y2)
Definition: fillpatterns.C:1
Double_t y[n]
Definition: legend1.C:17
Double_t x[n]
Definition: legend1.C:17
This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback is welcome!
Sergey Linev s.lin.nosp@m.ev@g.nosp@m.si.de

Definition in file rtext_align.cxx.