/* A utility function for parsing a whole file */
VyParseTree* ParseFile(char* filename){
if(filename == NULL){
fprintf(stderr, "Null pointer as filename.");
return NULL;
}
/* Perform lexing */
LexFile(filename);
if(GetNumTokens() < 1){
printf("Empty file: %s\n", filename);
return NULL;
}
/* Parse the tokens */
VyParseTree* list = MakeListTree();
while(MoreTokensExist()) {
VyParseTree* tree = Parse();
AddToList(list, tree);
}
CleanLexer();
return list;
}
Vector3D CPolyDlg::GetCnrVector( CString cnrstr )
{
//Extract 3D coordinates from vertex string. String is assumed to be:
// "[cnrnum] [v.x] [v.y] [v.z] R G B"
istrstream lin( cnrstr.GetBuffer( cnrstr.GetLength() ) ) ;
//extract & discard corner number if necessary
if( GetNumTokens( cnrstr ) > 6 )
{
int cnrnum ;
lin >> cnrnum ;
}
inline bool IsEmpty() const { return GetNumTokens() == 0; }
void CPolyDlg::OnEnterKey( UINT ctlID )
{
CString csMsg, csEditstr, csItemNum, newitmstr ;
int itemnum ;
CComboBox& combo = m_Combo_Corner ; //convenience
//Get editbox string
CWnd* pWnd = (combo.GetWindow(GW_CHILD)) ;
CWnd* pEditWnd = (pWnd->GetNextWindow()); //pointer to editbox window
pEditWnd->GetWindowText( csEditstr );
csEditstr.TrimLeft() ; csEditstr.TrimRight() ;
int numtokens = GetNumTokens( csEditstr ) ;
int numitems = combo.GetCount() ;
//check for too few or too many tokens in the entry string
if( numtokens < 2 )
{
csMsg = "Each entry must have at least X & Y positions " ;
AfxMessageBox( csMsg + "\n" + csEditstr ) ;
return ;
}
else if( numtokens > 7 )
{
csMsg = "Each line can have no more than seven items" ;
AfxMessageBox( csMsg + "\n" + csEditstr ) ;
return ;
}
//OK, 2 or 3 tokens: get valid X/Y pos
Vector3D vcrnr = GetCnrVector( csEditstr ) ;
//3 tokens are considered to be [X Position] [Y Position] [Z Position]
if( numtokens == 3 )
{
//prepend item num & add to end
itemnum = numitems + 1 ;
FormatNumStr( csItemNum, itemnum ) ;
newitmstr.Format( m_csCoordFmtStr, vcrnr.x, vcrnr.y, vcrnr.z, 0, 0, 0 ) ;
csEditstr = csItemNum + newitmstr ;
combo.AddString( csEditstr ) ;
itemnum = GetItemNum( csEditstr ) ;
}
// 6 tokens are assumed to be [X Position] [Y Position] [Z Position] [R] [G] [B]
else if( numtokens == 6 )
{
COLORREF col = GetCnrColor( csEditstr ) ;
int R = GetRValue( col ) ;
int G = GetGValue( col ) ;
int B = GetBValue( col ) ;
//prepend item num & add to end
itemnum = numitems + 1 ;
FormatNumStr( csItemNum, itemnum ) ;
newitmstr.Format( m_csCoordFmtStr, vcrnr.x, vcrnr.y, vcrnr.z, R, G, B ) ;
csEditstr = csItemNum + newitmstr ;
combo.AddString( csEditstr ) ;
itemnum = GetItemNum( csEditstr ) ;
}
//otherwise we assume [Item #] [X Position] [Y Position] [Z Position] [R] [G] [B]
else
{
itemnum = GetItemNum( csEditstr ) ;
COLORREF col = GetCnrColor( csEditstr ) ;
int R = GetRValue( col ) ;
int G = GetGValue( col ) ;
int B = GetBValue( col ) ;
//insert at item number or add to end
if( itemnum > numitems )
{
//prepend correct item num & add to end
itemnum = numitems + 1 ;
FormatNumStr( csItemNum, itemnum ) ;
newitmstr.Format( m_csCoordFmtStr, vcrnr.x, vcrnr.y, vcrnr.z, R, G, B ) ;
csEditstr = csItemNum + newitmstr ;
combo.AddString( csEditstr ) ;
}
else if( itemnum < numitems )
{
combo.DeleteString( itemnum - 1 ) ;
FormatNumStr( csItemNum, itemnum ) ;
newitmstr.Format( m_csCoordFmtStr, vcrnr.x, vcrnr.y, vcrnr.z, R, G, B ) ;
csEditstr = csItemNum + newitmstr ;
combo.InsertString( itemnum - 1, csEditstr ) ;
}
else //itemnum points to last string
{
combo.DeleteString( itemnum - 1 ) ;
FormatNumStr( csItemNum, itemnum ) ;
newitmstr.Format( m_csCoordFmtStr, vcrnr.x, vcrnr.y, vcrnr.z, R, G, B ) ;
csEditstr = csItemNum + newitmstr ;
combo.AddString( csEditstr ) ;
}
}
//leave this item selected
combo.SetCurSel( itemnum - 1 ) ;
UpdateControls() ; //added 07/10/03
}
