ControlElementDataObject Class Reference

Clipboard payload for ControlEditor copy/paste (control elements + connection lines). More...

#include <ControlElementDataObject.h>

Inheritance diagram for ControlElementDataObject:

Collaboration diagram for ControlElementDataObject:

Public Member Functions
	ControlElementDataObject (const std::vector< std::shared_ptr< ControlElement > > &elementList, const std::vector< std::shared_ptr< ConnectionLine > > &connectionList)
size_t	GetDataSize () const override
bool	GetDataHere (void *buf) const override
bool	SetData (size_t len, const void *buf) override
ControlElementsLists *	GetElementsLists ()

Private Attributes
ControlElementsLists *	m_elementsLists = nullptr
bool	m_ownsLists = false

Detailed Description

Clipboard payload for ControlEditor copy/paste (control elements + connection lines).

Author

Thales Lima Oliveira thale.nosp@m.s.ol.nosp@m.iveir.nosp@m.a@uf.nosp@m.tm.ed.nosp@m.u.br

Date

08/07/2026

Uses the same pointer-passing pattern as ElementDataObject, but with explicit ownership control to avoid double-free when reading clipboard data.

Definition at line 43 of file ControlElementDataObject.h.

Constructor & Destructor Documentation

ControlElementDataObject() [1/2]

ControlElementDataObject::ControlElementDataObject

(

)

Definition at line 20 of file ControlElementDataObject.cpp.

    : wxDataObjectSimple(wxDataFormat(wxT("PSPControlCopy")))
{
    // When used for reading clipboard data, we do NOT own the lists by default.
    m_elementsLists = nullptr;
    m_ownsLists = false;
}

ControlElementDataObject() [2/2]

ControlElementDataObject::ControlElementDataObject	(	const std::vector< std::shared_ptr< ControlElement > > &	elementList,
		const std::vector< std::shared_ptr< ConnectionLine > > &	connectionList
	)

Definition at line 28 of file ControlElementDataObject.cpp.

    : wxDataObjectSimple(wxDataFormat(wxT("PSPControlCopy")))
{
    m_elementsLists = new ControlElementsLists();
    m_elementsLists->elementList = elementList;
    m_elementsLists->connectionList = connectionList;
    m_ownsLists = true;
}

~ControlElementDataObject()

ControlElementDataObject::~ControlElementDataObject ( )

override

Definition at line 39 of file ControlElementDataObject.cpp.

{
    if (m_ownsLists && m_elementsLists) {
        delete m_elementsLists;
        m_elementsLists = nullptr;
    }
}

Member Function Documentation

GetDataHere()

bool ControlElementDataObject::GetDataHere ( void *  buf ) const

override

Definition at line 52 of file ControlElementDataObject.cpp.

{
    *(ControlElementsLists**)buf = m_elementsLists;
    return true;
}

GetDataSize()

size_t ControlElementDataObject::GetDataSize ( ) const

override

Definition at line 47 of file ControlElementDataObject.cpp.

{
    return sizeof(void*);
}

GetElementsLists()

ControlElementsLists * ControlElementDataObject::GetElementsLists ( )

inline

Definition at line 56 of file ControlElementDataObject.h.

{ return m_elementsLists; }

SetData()

bool ControlElementDataObject::SetData ( size_t  len, const void *  buf  )

override

Definition at line 58 of file ControlElementDataObject.cpp.

{
    (void)len;
    m_elementsLists = *(ControlElementsLists**)buf;
    // The clipboard-owned data object owns the lists, not this stack reader.
    m_ownsLists = false;
    return true;
}

Member Data Documentation

m_elementsLists

ControlElementsLists* ControlElementDataObject::m_elementsLists = nullptr

private

Definition at line 59 of file ControlElementDataObject.h.

m_ownsLists

bool ControlElementDataObject::m_ownsLists = false

private

Definition at line 60 of file ControlElementDataObject.h.

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

• Project/elements/ControlElementDataObject.h
• Project/elements/ControlElementDataObject.cpp