void CColumnDefMap::SaveSettings()
{
// Write column positions to registry
// ColumnDefMap must have non-blank name and one (1) or more entries.
// If no name or no entries then skip it.
if (!GetName().IsEmpty() && this->getSize() > 0)
{
CAppRegistryKey appKey;
CRegistryKey settings = appKey.createSubKey("Settings");
if (settings.isOpen())
{
CRegistryKey registryKey = settings.createSubKey( GetName() ); // Grid Name
if (registryKey.isOpen())
{
for (int i = 0; i < this->getSize(); i++)
{
CColumnDef *cd = this->getAt(i);
CString title = cd->GetTitle(); // Column Name
int *ptr = cd->GetColIndexPtr();
int value = *ptr;
if (registryKey.setValue(title, value))
{
// okay
}
// else we silently suffer
}
}
}
}
}
void CColumnDefMap::LoadSettings()
{
if (!GetName().IsEmpty())
{
CAppRegistryKey appKey;
CRegistryKey settings = appKey.createSubKey("Settings");
if (settings.isOpen())
{
CRegistryKey registryKey = settings.createSubKey( GetName() );
if (registryKey.isOpen())
{
for (int i = 0; i < this->getSize(); i++)
{
CColumnDef *cd = this->getAt(i);
CString title = cd->GetTitle(); // Column Name
int *ptr = cd->GetColIndexPtr();
int value;
if (registryKey.getValue(title, value))
{
*ptr = value;
}
}
// Compensate
// The number of fields present may have been reduced. This could
// result in a hole in the numbering of active fields, as well as a column
// number that is out of range for current list. Try to spot this and
// if spotted then shuffle the fields down so we might preserve the
// order for the rest of the fields. Failing this, teh Validate section
// will just reassign everything to defaults.
///*rcf WELL ???
// Validate
// The values are column indices, nothing should be less
// than zero, and not greater than the number of columns
// minus 1. And no two should be alike. If there is an
// error, then just reset the whole thing to sequentially
// numbered.
bool error = false;
for (int i = 0; i < this->getSize() && !error; i++)
{
CColumnDef *cdI = this->getAt(i);
int *valI = cdI->GetColIndexPtr();
if (*valI < 0 || *valI >= this->getSize())
error = true;
// Check no two alike
for (int j = i+1; j < this->getSize() && !error; j++)
{
CColumnDef *cdJ = this->getAt(j);
int *valJ = cdJ->GetColIndexPtr();
if (*valI == *valJ)
error = true;
}
}
// If error then reset to sequential numbering
if (error)
{
for (int i = 0; i < this->getSize(); i++)
{
CColumnDef *cd = this->getAt(i);
int *valI = cd->GetColIndexPtr();
*valI = i;
}
}
}
}
}
}