Basic element of browsable hierarchy.

Provides access to data, creates iterator if any

Author: Sergey Linev S.Lin.nosp@m.ev@g.nosp@m.si.de

Date: 2019-10-14

Warning: This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback is welcome!

Definition at line 33 of file RElement.hxx.

Public Types
enum	EActionKind { kActNone , kActBrowse , kActEdit , kActImage , kActDraw6 , kActDraw7 , kActCanvas , kActGeom }
	Possible actions on double-click. More...

enum	EContentKind { kNone , kText , kImage , kPng , kJpeg , kJson , kFileName }

Public Member Functions
virtual	~RElement ()=default

virtual bool	cd ()
	Select element as active.

virtual std::unique_ptr< RLevelIter >	GetChildsIter ()
	Create iterator for childs elements if any.

virtual std::string	GetContent (const std::string &="text")
	Returns element content, depends from kind.

virtual EActionKind	GetDefaultAction () const
	Get default action.

virtual std::string	GetName () const =0
	Name of browsable, must be provided in derived classes.

virtual int	GetNumChilds ()
	Returns number of childs By default creates iterator and iterates over all items.

virtual std::unique_ptr< RHolder >	GetObject ()
	Access object.

virtual std::string	GetTitle () const
	Title of browsable (optional)

virtual bool	IsCapable (EActionKind action) const
	Check if want to perform action.

virtual bool	IsExpandByDefault () const
	Should item representing element be expand by default.

virtual bool	MatchName (const std::string &name) const
	Checks if element name match to provided value.

Static Public Member Functions
static int	ComparePaths (const RElementPath_t &path1, const RElementPath_t &path2)
	Compare two paths, Returns number of elements matches in both paths.

static int	ExtractItemIndex (std::string &name)
	Extract index from name Index coded by client with ###<indx>$$$ suffix Such coding used by browser to identify element by index.

static EContentKind	GetContentKind (const std::string &kind)
	Find item with specified name Default implementation, should work for all.

static std::string	GetPathAsString (const RElementPath_t &path)
	Converts element path back to string.

static std::shared_ptr< RElement >	GetSubElement (std::shared_ptr< RElement > &elem, const RElementPath_t &path)
	Returns sub element.

static RElementPath_t	ParsePath (const std::string &str)
	Parse string path to produce RElementPath_t One should avoid to use string pathes as much as possible.

#include <ROOT/Browsable/RElement.hxx>

Inheritance diagram for ROOT::Experimental::Browsable::RElement:

[legend]

Member Enumeration Documentation

◆ EActionKind

enum ROOT::Experimental::Browsable::RElement::EActionKind

Possible actions on double-click.

Enumerator
kActNone	do nothing
kActBrowse	just browse (expand) item
kActEdit	can provide data for text editor
kActImage	can be shown in image viewer, can provide image
kActDraw6	can be drawn inside ROOT6 canvas
kActDraw7	can be drawn inside ROOT7 canvas
kActCanvas	indicate that it is canvas and should be drawn directly
kActGeom	can be shown in geometry viewer

Definition at line 49 of file RElement.hxx.

◆ EContentKind

enum ROOT::Experimental::Browsable::RElement::EContentKind

Enumerator
kNone	not recognized
kText	"text" - plain text for code editor
kImage	"image64" - base64 for supported image formats (png/gif/gpeg)
kPng	"png" - plain png binary code, returned inside std::string
kJpeg	"jpg" or "jpeg" - plain jpg binary code, returned inside std::string
kJson	"json" representation of object, can be used in code editor
kFileName	"filename" - file name if applicable

Definition at line 36 of file RElement.hxx.

Constructor & Destructor Documentation

◆ ~RElement()

virtual ROOT::Experimental::Browsable::RElement::~RElement ( )

virtualdefault

Member Function Documentation

◆ cd()

virtual bool ROOT::Experimental::Browsable::RElement::cd ( )

inlinevirtual

Select element as active.

Reimplemented in TDirectoryElement.

Definition at line 92 of file RElement.hxx.

◆ ComparePaths()

int RElement::ComparePaths	(	const RElementPath_t &	path1,
		const RElementPath_t &	path2
	)

static

Compare two paths, Returns number of elements matches in both paths.

Definition at line 131 of file RElement.cxx.

◆ ExtractItemIndex()

int RElement::ExtractItemIndex ( std::string & name )

static

Extract index from name Index coded by client with ###<indx>$$$ suffix Such coding used by browser to identify element by index.

Definition at line 164 of file RElement.cxx.

◆ GetChildsIter()

std::unique_ptr< RLevelIter > RElement::GetChildsIter ( )

virtual

Create iterator for childs elements if any.

Returns child iterator (if any)

Reimplemented in ROOT::Experimental::Browsable::RGroup, ROOT::Experimental::Browsable::RSysFile, ROOT::Experimental::Browsable::RWrapper, ROOT::Experimental::Browsable::TObjectElement, RFieldElement, RNTupleElement, TBrBrowsableElement, TKeyElement, TDirectoryElement, TFolderElement, and TCollectionElement.

Definition at line 27 of file RElement.cxx.

◆ GetContent()

std::string RElement::GetContent ( const std::string & kind = "text" )

virtual

Returns element content, depends from kind.

Returns string content like text file content or json representation.

Can be "text" or "image64" or "json"

Reimplemented in ROOT::Experimental::Browsable::RSysFile, TDirectoryElement, and ROOT::Experimental::Browsable::RWrapper.

Definition at line 87 of file RElement.cxx.

◆ GetContentKind()

RElement::EContentKind RElement::GetContentKind ( const std::string & kind )

static

Find item with specified name Default implementation, should work for all.

Definition at line 49 of file RElement.cxx.

◆ GetDefaultAction()

virtual EActionKind ROOT::Experimental::Browsable::RElement::GetDefaultAction ( ) const

inlinevirtual

Get default action.

Reimplemented in ROOT::Experimental::Browsable::RSysFile, ROOT::Experimental::Browsable::RWrapper, ROOT::Experimental::Browsable::TObjectElement, RFieldElement, TKeyElement, and TDirectoryElement.

Definition at line 83 of file RElement.hxx.

◆ GetName()

virtual std::string ROOT::Experimental::Browsable::RElement::GetName ( ) const

pure virtual

Name of browsable, must be provided in derived classes.

Implemented in ROOT::Experimental::Browsable::RGroup, ROOT::Experimental::Browsable::RSysFile, ROOT::Experimental::Browsable::RWrapper, ROOT::Experimental::Browsable::TObjectElement, RFieldElement, RNTupleElement, TKeyElement, and TDirectoryElement.

◆ GetNumChilds()

int RElement::GetNumChilds ( )

virtual

Returns number of childs By default creates iterator and iterates over all items.

Reimplemented in TBrBrowsableElement, TFolderElement, and TCollectionElement.

Definition at line 36 of file RElement.cxx.

◆ GetObject()

virtual std::unique_ptr< RHolder > ROOT::Experimental::Browsable::RElement::GetObject ( )

inlinevirtual

Access object.

Reimplemented in ROOT::Experimental::Browsable::RWrapper, ROOT::Experimental::Browsable::TObjectElement, RFieldElement, and TKeyElement.

Definition at line 80 of file RElement.hxx.

◆ GetPathAsString()

std::string RElement::GetPathAsString ( const RElementPath_t & path )

static

Converts element path back to string.

Definition at line 146 of file RElement.cxx.

◆ GetSubElement()

std::shared_ptr< RElement > RElement::GetSubElement	(	std::shared_ptr< RElement > &	elem,
		const RElementPath_t &	path
	)

static

Returns sub element.

Definition at line 66 of file RElement.cxx.

◆ GetTitle()

virtual std::string ROOT::Experimental::Browsable::RElement::GetTitle ( ) const

inlinevirtual

Title of browsable (optional)

Reimplemented in ROOT::Experimental::Browsable::RGroup, ROOT::Experimental::Browsable::RSysFile, ROOT::Experimental::Browsable::RWrapper, ROOT::Experimental::Browsable::TObjectElement, RFieldElement, RNTupleElement, TKeyElement, and TDirectoryElement.

Definition at line 69 of file RElement.hxx.

◆ IsCapable()

virtual bool ROOT::Experimental::Browsable::RElement::IsCapable ( EActionKind action ) const

inlinevirtual

Check if want to perform action.

Reimplemented in ROOT::Experimental::Browsable::RWrapper, TKeyElement, RFieldElement, and ROOT::Experimental::Browsable::TObjectElement.

Definition at line 86 of file RElement.hxx.

◆ IsExpandByDefault()

virtual bool ROOT::Experimental::Browsable::RElement::IsExpandByDefault ( ) const

inlinevirtual

Should item representing element be expand by default.

Reimplemented in ROOT::Experimental::Browsable::RWrapper.

Definition at line 89 of file RElement.hxx.

◆ MatchName()

virtual bool ROOT::Experimental::Browsable::RElement::MatchName ( const std::string & name ) const

inlinevirtual

Checks if element name match to provided value.

Reimplemented in ROOT::Experimental::Browsable::RSysFile.

Definition at line 66 of file RElement.hxx.

◆ ParsePath()

RElementPath_t RElement::ParsePath ( const std::string & str )

static

Parse string path to produce RElementPath_t One should avoid to use string pathes as much as possible.

Definition at line 102 of file RElement.cxx.

The documentation for this class was generated from the following files:

gui/browsable/inc/ROOT/Browsable/RElement.hxx
gui/browsable/src/RElement.cxx

Public Types

Public Member Functions

Static Public Member Functions

Member Enumeration Documentation

◆ EActionKind

◆ EContentKind

Constructor & Destructor Documentation

◆ ~RElement()

Member Function Documentation

◆ cd()

◆ ComparePaths()

◆ ExtractItemIndex()

◆ GetChildsIter()

◆ GetContent()

◆ GetContentKind()

◆ GetDefaultAction()

◆ GetName()

◆ GetNumChilds()

◆ GetObject()

◆ GetPathAsString()

◆ GetSubElement()

◆ GetTitle()

◆ IsCapable()

◆ IsExpandByDefault()

◆ MatchName()

◆ ParsePath()