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.\" ========================================================================
.\"
.IX Title "HDF5::tkview 3pm"
.TH HDF5::tkview 3pm "2022-11-30" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
PDL::IO::HDF5::tkview \- View HDF5 files using perl/tk and PDL::IO::HDF5 modules
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This is a experimental object to view \s-1HDF5\s0 files the \s-1PDL::IO::HDF5\s0 module.
The \s-1HDF\s0 files are displayed in a tree structure using Tk::Tree
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 3
\& use Tk;
\& use PDL::IO::HDF5::tkview
\& use PDL::IO::HDF5;
\&
\& my $mw = MainWindow\->new;
\&
\& 
\& my $h5 = new PDL::IO::HDF5(\*(Aqdatafile.h5\*(Aq);  # open HDF5 file object
\&
\& my $tkview = new PDL::IO::HDF5::tkview( $mw, $h5);
\& 
\& MainLoop;
.Ve
.SH "MEMBER DATA"
.IX Header "MEMBER DATA"
.IP "mw" 1
.IX Item "mw"
Tk window where the file structure is displayed.
.IP "H5obj" 1
.IX Item "H5obj"
\&\s-1PDL::IO::HDF5\s0 Object
.IP "hl" 1
.IX Item "hl"
Tk Hlist object
.IP "dataDisplaySub" 1
.IX Item "dataDisplaySub"
Sub ref to execute when a dataset is double-clicked. This defaults to a print of the dataset. See 
dataDisplaySubSet for details.
.Sp
Tk Hlist object
.SH "METHODS"
.IX Header "METHODS"
####\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
.SS "new"
.IX Subsection "new"
PDL::IO::HDF5::tkview Constructor \- creates new object
.PP
\&\fBUsage:\fR
.PP
.Vb 1
\& $tkview = new PDL::IO::HDF5::tkview( $mw, $H5obj);
\& 
\&    Where:
\&        $mw     Tk window 
\&        $H5obj  PDL::IO::HDF5::Object
.Ve
.SS "dataDisplaySubSet"
.IX Subsection "dataDisplaySubSet"
Set the dataDisplaySub data member.
.PP
\&\fBUsage:\fR
.PP
.Vb 3
\& # Data Display sub to call when a dataset is double\-clicked
\& my $dataDisplay = sub{ my $data = $_[0]; print "I\*(Aqm Displaying This $data\en";};
\& $tkview\->dataDisplaySubSet($dataDisplay);
.Ve
.PP
The dataDisplaySub data member is a perl sub ref that is called when a dataset is double-clicked. 
This data member is initially set to just print the dataset's data to the command line. Using the dataDisplaySubSet
method, different actions for displaying the data can be \*(L"plugged-in\*(R".
.SS "activateCmd"
.IX Subsection "activateCmd"
Internal Display method invoked whenever a tree element is activated (i.e.
double-clicked). This method does nothing unless a dataset element has been
selected. It that cases it calls \f(CW$self\fR\->dataDisplaySub with the data.