Bug 406805

Summary:	Cannot access histograms within a directory structure in a ROOT file
Product:	[Applications] LabPlot2	Reporter:	beojan <beojan>
Component:	backend	Assignee:	Alexander Semke <alexander.semke>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	NOR
Version First Reported In:	latest
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:	https://commits.kde.org/labplot/3a2c6ef46980d39675996312ffc26c8c03d9081d	Version Fixed/Implemented In:	2.7
Sentry Crash Report:

Description beojan 2019-04-23 10:19:12 UTC

SUMMARY

The CERN ROOT file format supports a directory structure within a file. When a file with such a structure is opened in the import dialog, only one entry is shown for each unique histogram name, with no indication of which directory that histogram is in.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma
(available in About System)
KDE Plasma Version: 5.15.4 
KDE Frameworks Version: 5.57
Qt Version: 5.12

ADDITIONAL INFORMATION

Comment 1 Alexander Semke 2019-05-01 08:42:49 UTC

Thanks for reporting this issue. Can you please attache an example file for this?

Comment 2 Christoph Roick 2019-05-12 14:10:07 UTC

Git commit 3a2c6ef46980d39675996312ffc26c8c03d9081d by Christoph Roick.
Committed on 12/05/2019 at 14:03.
Pushed by croick into branch 'master'.

Support ROOT directory structure

- display histograms and trees in a directory structure
- internally store key information by their unique file positions

M  +204  -107  src/backend/datasources/filters/ROOTFilter.cpp
M  +11   -3    src/backend/datasources/filters/ROOTFilter.h
M  +77   -62   src/backend/datasources/filters/ROOTFilterPrivate.h
M  +75   -40   src/kdefrontend/datasources/ROOTOptionsWidget.cpp
M  +2    -2    src/kdefrontend/datasources/ROOTOptionsWidget.h

https://commits.kde.org/labplot/3a2c6ef46980d39675996312ffc26c8c03d9081d