/***************************************************
GetJoinRange
function returns join information related to the cell specified
in the col and row parameters. These parameters might be changed
to represent starting col, row position of the join.
Params:
col, row - identify the cell to retrieve join information on,
these parameters will represent the starting pos
of the join.
endCol, - will be set to the end col, row position of the
endRow join.
Returns:
UG_SUCCESS - on success
UG_ERROR - if joins are disabled, or cell specified is not part of a join
*****************************************************/
int CUGTopHdg::GetJoinRange(int *col,int *row,int *endCol,int *endRow)
{
if(m_GI->m_enableJoins == FALSE)
return UG_ERROR;
int startCol;
long startRow, joinRow;
BOOL origin;
CUGCell cell;
m_ctrl->GetCellIndirect(*col,*row,&cell);
if(cell.IsPropertySet(UGCELL_JOIN_SET) == FALSE)
return UG_ERROR;
cell.GetJoinInfo(&origin,&startCol,&startRow);
if(!origin)
{
*col += startCol;
*row += (int)startRow;
m_ctrl->GetCellIndirect(*col,*row,&cell);
}
cell.GetJoinInfo(&origin,endCol,&joinRow);
*endCol +=*col;
*endRow = joinRow + *row;
return UG_SUCCESS;
}
/***************************************************
OnPaint
This routine is responsible for gathering the
information to draw, get the selected state
plus draw in an optomized fashion
Params:
<none>
Returns:
<none>
*****************************************************/
void CUGGrid::OnPaint()
{
if ( m_GI->m_paintMode == FALSE )
return;
CClientDC dc(this);
//redraw the cells in any invalid region
CRect clipRect;
if ( GetUpdateRect( clipRect ) == 0 )
return;
ValidateRect( NULL );
//if( dc.GetClipBox( clipRect ) != NULLREGION )
if ( clipRect.left == 0 && clipRect.right == 0 &&
clipRect.top == 0 && clipRect.bottom == 0 )
{
// redraw all cells in the grid.
m_drawHint.AddHint(0,0,m_GI->m_numberCols,m_GI->m_numberRows);
}
else
{
int startCol = 0,
endCol = m_GI->m_numberCols;
long startRow = 0,
endRow = m_GI->m_numberRows;
// determine the top-left and bottom-right cells of the clip rectangle
m_ctrl->GetCellFromPoint( clipRect.left, clipRect.top, &startCol, &startRow );
m_ctrl->GetCellFromPoint( clipRect.right, clipRect.bottom, &endCol, &endRow );
// if the bottom right cell in the range is part of a join,
// than get information on 'join end' cell.
CUGCell cell;
m_ctrl->GetCell( endCol, endRow, &cell );
BOOL bOrigin;
int stCol;
long stRow;
if ( cell.GetJoinInfo( &bOrigin, &stCol, &stRow ) == UG_SUCCESS )
{
endCol = endCol + stCol;
endRow = endRow + stRow;
}
// redraw the region of cells that are affected by the invalid rect
m_drawHint.AddHint( startCol, startRow, endCol, endRow );
// if the current cell is not part of the clip region,
// add the current cell to the draw hints
if (!(startCol >= m_ctrl->GetCurrentCol() && endCol <= m_ctrl->GetCurrentCol() &&
startRow >= m_ctrl->GetCurrentRow() && endRow <= m_ctrl->GetCurrentRow()))
{
if ( m_GI->m_highlightRowFlag == FALSE )
m_drawHint.AddHint( m_ctrl->GetCurrentCol(), m_ctrl->GetCurrentRow());
else
m_drawHint.AddHint( 0, m_ctrl->GetCurrentRow(), m_GI->m_numberCols, m_ctrl->GetCurrentRow());
}
}
//double buffering
CDC * db_dc = NULL;
if(m_doubleBufferMode)
{
db_dc = new CDC;
db_dc->CreateCompatibleDC(NULL);
db_dc->SelectObject(m_bitmap);
}
DrawCellsIntern(&dc,db_dc);
m_drawHint.ClearHints();
if(db_dc!= NULL)
delete db_dc;
}