ModelView::Path Class Reference

Supports navigation through SessionModel. More...

Public Types
using	const_iterator = container_t::const_iterator
using	container_t = std::vector< PathElement >
using	iterator = container_t::iterator
using	PathElement = int

Public Member Functions
	Path ()=default
void	append (PathElement element)
iterator	begin ()
const_iterator	begin () const
iterator	end ()
const_iterator	end () const
void	prepend (PathElement element)
std::string	str () const
	Returns string representing path ("0,0,1,3"). More...

Static Public Member Functions
static Path	fromString (const std::string &str)
	Constructs Path object from string containing sequence of integers ("0,0,1,3"). More...
static Path	fromVector (const std::vector< int > &data)
	Constructs Path object from vector of integers.. More...

Private Attributes
container_t	m_data

Detailed Description

Supports navigation through SessionModel.

Contains a chain of indexes that have to be used to reach the desired SessionItem starting from the root item. Path class plays a role of simplified QModelIndex for SessionModel. Used for undo/redo only. Example of tree:

• root path:""
  • child path:"0"
    • grandchild path:"0,0"
    • grandchild path:"0,1"
  • child path:"1"

Definition at line 35 of file path.h.

Member Typedef Documentation

const_iterator

using ModelView::Path::const_iterator = container_t::const_iterator

Definition at line 40 of file path.h.

container_t

using ModelView::Path::container_t = std::vector<PathElement>

Definition at line 38 of file path.h.

iterator

using ModelView::Path::iterator = container_t::iterator

Definition at line 39 of file path.h.

PathElement

using ModelView::Path::PathElement = int

Definition at line 37 of file path.h.

Constructor & Destructor Documentation

Path()

ModelView::Path::Path ( )

default

Member Function Documentation

append()

void Path::append

(

Path::PathElement

element

)

Definition at line 57 of file path.cpp.

{
    m_data.push_back(element);
}

References m_data.

Referenced by fromString(), and TEST_F().

begin() [1/2]

Path::iterator Path::begin

(

)

Definition at line 67 of file path.cpp.

{
    return m_data.begin();
}

References m_data.

begin() [2/2]

Path::const_iterator Path::begin

(

)

const

Definition at line 72 of file path.cpp.

{
    return m_data.begin();
}

References m_data.

end() [1/2]

Path::iterator Path::end

(

)

Definition at line 77 of file path.cpp.

{
    return m_data.end();
}

References m_data.

end() [2/2]

Path::const_iterator Path::end

(

)

const

Definition at line 82 of file path.cpp.

{
    return m_data.end();
}

References m_data.

fromString()

Path Path::fromString ( const std::string &  str )

static

Constructs Path object from string containing sequence of integers ("0,0,1,3").

Definition at line 25 of file path.cpp.

{
    Path result;
 
    std::string str_spaces(str);
    std::replace(str_spaces.begin(), str_spaces.end(), ',', ' ');
 
    std::istringstream iss(str_spaces);
    std::for_each(std::istream_iterator<std::string>(iss), std::istream_iterator<std::string>(),
                  [&result](auto x) { result.append(std::stoi(x)); });
    return result;
}

References append(), and str().

Referenced by TEST_F().

Here is the call graph for this function:

fromVector()

Path Path::fromVector ( const std::vector< int > &  data )

static

Constructs Path object from vector of integers..

Definition at line 40 of file path.cpp.

{
    Path result;
    std::for_each(data.begin(), data.end(), [&result](auto x) { result.append(x); });
    return result;
}

Referenced by TEST_F().

prepend()

void Path::prepend

(

Path::PathElement

element

)

Definition at line 62 of file path.cpp.

{
    m_data.insert(m_data.begin(), element);
}

References m_data.

Referenced by ModelView::Utils::PathFromItem(), and TEST_F().

str()

std::string Path::str

(

)

const

Returns string representing path ("0,0,1,3").

Definition at line 49 of file path.cpp.

{
    auto comma_fold = [](std::string a, int b) { return std::move(a) + ',' + std::to_string(b); };
    return m_data.empty() ? std::string()
                          : std::accumulate(std::next(m_data.begin()), m_data.end(),
                                            std::to_string(m_data[0]), comma_fold);
}

References m_data.

Referenced by fromString(), and TEST_F().

Member Data Documentation

m_data

container_t ModelView::Path::m_data

private

Definition at line 60 of file path.h.

Referenced by append(), begin(), end(), prepend(), and str().

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

• /home/www/ba/mvvm/model/mvvm/model/path.h
• /home/www/ba/mvvm/model/mvvm/model/path.cpp