From 1b29c40a6f4d14e9684d5f2d6df323f2a0682ea0 Mon Sep 17 00:00:00 2001
From: Olivier Couet <Olivier.Couet@cern.ch>
Date: Thu, 26 Apr 2012 13:35:34 +0000
Subject: [PATCH] Protection added in Execute:Event in case somebody double
click on a TPolyLine.
git-svn-id: http://root.cern.ch/svn/root/trunk@43961 27541ba8-7e3a-0410-8455-c3a389f83636
---
graf2d/graf/src/TPolyLine.cxx | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/graf2d/graf/src/TPolyLine.cxx b/graf2d/graf/src/TPolyLine.cxx
index 82af1c2392d..21cb87b1a07 100644
--- a/graf2d/graf/src/TPolyLine.cxx
+++ b/graf2d/graf/src/TPolyLine.cxx
@@ -428,17 +428,19 @@ void TPolyLine::ExecuteEvent(Int_t event, Int_t px, Int_t py)
ymax + dyr*gPad->GetTopMargin());
gPad->RangeAxis(xmin, ymin, xmax, ymax);
- if (middle) {
- for(i=0;i<np;i++) {
- fX[i] = gPad->PadtoX(gPad->AbsPixeltoX(x[i]+dpx));
- fY[i] = gPad->PadtoY(gPad->AbsPixeltoY(y[i]+dpy));
+ if (x && y) {
+ if (middle) {
+ for(i=0;i<np;i++) {
+ fX[i] = gPad->PadtoX(gPad->AbsPixeltoX(x[i]+dpx));
+ fY[i] = gPad->PadtoY(gPad->AbsPixeltoY(y[i]+dpy));
+ }
+ } else {
+ fX[ipoint] = gPad->PadtoX(gPad->AbsPixeltoX(pxold));
+ fY[ipoint] = gPad->PadtoY(gPad->AbsPixeltoY(pyold));
}
- } else {
- fX[ipoint] = gPad->PadtoX(gPad->AbsPixeltoX(pxold));
- fY[ipoint] = gPad->PadtoY(gPad->AbsPixeltoY(pyold));
+ delete [] x; x = 0;
+ delete [] y; y = 0;
}
- delete [] x; x = 0;
- delete [] y; y = 0;
gPad->Modified(kTRUE);
gVirtualX->SetLineColor(-1);
}
--
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