leocad/common/group.cpp
2011-09-07 21:06:51 +00:00

79 lines
1.2 KiB
C++

// Piece group
//
#include <stdlib.h>
#include "group.h"
#include "file.h"
/////////////////////////////////////////////////////////////////////////////
// Group construction/destruction
Group::Group()
{
m_pGroup = NULL;
m_pNext = NULL;
}
Group::~Group()
{
}
Group* Group::GetTopGroup()
{
return m_pGroup ? m_pGroup->GetTopGroup() : this;
}
void Group::SetGroup(Group* pGroup)
{
if (pGroup == this)
return;
if (m_pGroup != NULL && m_pGroup != (Group*)-1)
m_pGroup->SetGroup(pGroup);
else
m_pGroup = pGroup;
}
void Group::UnGroup(Group* pGroup)
{
if (m_pGroup == pGroup)
m_pGroup = NULL;
else
if (m_pGroup != NULL)
m_pGroup->UnGroup(pGroup);
}
void Group::FileLoad(File* file)
{
unsigned char version;
int i;
file->Read(&version, 1);
file->Read(m_strName, 65);
file->Read(m_fCenter, 12);
file->ReadLong(&i, 1);
m_pGroup = (Group*)i;
}
void Group::FileSave(File* file, Group* pGroups)
{
unsigned char version = 1; // LeoCAD 0.60
file->Write(&version, 1);
file->Write(m_strName, 65);
file->Write(m_fCenter, 12);
int i = 0;
if (m_pGroup == NULL)
i = -1;
else
{
for (; pGroups; pGroups = pGroups->m_pNext)
if (pGroups == m_pGroup)
break;
else
i++;
}
file->WriteLong(&i, 1);
}