/***************************************************
DeleteCol
This function deletes a column at the specified
position. Even if the column does not exist the
function will return success. However if there
are no rows in the grid the function will fail.
Params
col - column number to delete
Return
UG_SUCCESS - success
UG_ERROR - failure
****************************************************/
int CUGMem::DeleteCol(int col)
{
//goto the first row
while(PrevRow()==UG_SUCCESS);
//check to see if there is a first row
if(m_rowInfo == NULL)
return UG_ERROR;
//move the 'col' column over
UGMemCI *colinfo;
do{
if(GotoCol(col) ==UG_SUCCESS)
{
// delete the columninfo if there are columns to the right
if(m_colInfo->next != NULL){
//update the links
colinfo = m_colInfo->prev;
if(colinfo != NULL)
colinfo->next = m_colInfo->next;
colinfo = m_colInfo->next;
if(colinfo != NULL)
colinfo->prev = m_colInfo->prev;
if(m_rowInfo->col == m_colInfo)
m_rowInfo->col = colinfo;
//delete the colinfo
if(m_colInfo->cell != NULL)
delete m_colInfo->cell;
delete m_colInfo;
}
// else if there are no more column to the right, then keep the
// colinfo, but delete the cellinfo within the colinfo
// since this may be the initial link to the rowinfo list
else{
delete m_colInfo->cell;
m_colInfo->cell = NULL;
}
}
}while(NextRow()==UG_SUCCESS);
//adjust the column translations
int numCols = m_ctrl->GetNumberCols();
if(numCols > 0)
{
for(int loop = 0 ; loop < numCols;loop++)
{
if(m_ctrl->m_GI->m_colInfo[loop].colTranslation >= col)
m_ctrl->m_GI->m_colInfo[loop].colTranslation--;
}
}
//update the current column pointer
m_colInfo = m_rowInfo->col;
m_currentCol = 0;
return UG_SUCCESS;
}
NS_IMETHODIMP
morkTableRowCursor::PrevRow( // get row cells from table for cells already in row
nsIMdbEnv* mev, // context
nsIMdbRow** acqRow, // acquire previous row in table
mdb_pos* outRowPos)
{
mdb_err outErr = 0;
nsIMdbRow* outRow = 0;
morkEnv* ev = morkEnv::FromMdbEnv(mev);
if ( ev )
{
mdbOid oid; // place to put oid we intend to ignore
morkRow* row = PrevRow(ev, &oid, outRowPos);
if ( row )
{
morkStore* store = row->GetRowSpaceStore(ev);
if ( store )
outRow = row->AcquireRowHandle(ev, store);
}
outErr = ev->AsErr();
}
if ( acqRow )
*acqRow = outRow;
return outErr;
}
/***************************************************
InsertCol
This function inserts a blank column at the specified
location. The previous column in that location is
pushed right one column. If the specified column does not
already exist for a given row, then that row will be
skipped and the insert will continue.
Params
col - column number where a blank column will be inserted
Return
UG_SUCCESS - success
UG_ERROR - failure (no rows in grid)
****************************************************/
int CUGMem::InsertCol(int col)
{
//goto the first row
while(PrevRow()==UG_SUCCESS);
//check to see if there is a first row
if(m_rowInfo == NULL)
return UG_ERROR;
//get the screen position column number
int numCols = m_ctrl->GetNumberCols();
if(numCols > 0)
{
for(int loop = 0 ; loop < numCols;loop++)
{
if(m_ctrl->m_GI->m_colInfo[loop].colTranslation == col)
{
col = loop;
break;
}
}
}
//move the 'col' column over
UGMemCI *newcol;
do
{
if(GotoCol(col) ==UG_SUCCESS)
{
newcol = new UGMemCI;
newcol->cell = NULL;
newcol->next = m_colInfo;
newcol->prev = m_colInfo->prev;
if(newcol->prev != NULL)
newcol->prev->next = newcol;
if(m_rowInfo->col == m_colInfo)
m_rowInfo->col = newcol;
m_colInfo->prev = newcol;
m_currentCol ++;
}
}while(NextRow()==UG_SUCCESS);
//adjust the column translations
if(numCols > 0)
{
for(int loop = 0 ; loop < numCols;loop++)
{
if(m_ctrl->m_GI->m_colInfo[loop].colTranslation >= col)
m_ctrl->m_GI->m_colInfo[loop].colTranslation++;
}
}
return UG_SUCCESS;
}
