Function EditPadWithSpaces

src/Edit.c:3135–3244

============================================================================= EditPadWithSpaces()

//  EditPadWithSpaces()
//
void EditPadWithSpaces ( HWND hwnd, BOOL bSkipEmpty, BOOL bNoUndoGroup )
{
    char *pmszPadStr;
    int iMaxColumn = 0;
    int iLine;
    BOOL bIsRectangular = FALSE;
    BOOL bReducedSelection = FALSE;
    int iSelStart;
    int iSelEnd;
    int iLineStart;
    int iLineEnd;
    int iRcCurLine;
    int iRcAnchorLine;
    int iRcCurCol;
    int iRcAnchorCol;
    if ( SC_SEL_RECTANGLE != SendMessage ( hwnd, SCI_GETSELECTIONMODE, 0, 0 ) ) {
        iSelStart = ( int ) SendMessage ( hwnd, SCI_GETSELECTIONSTART, 0, 0 );
        iSelEnd   = ( int ) SendMessage ( hwnd, SCI_GETSELECTIONEND, 0, 0 );
        iLineStart = ( int ) SendMessage ( hwnd, SCI_LINEFROMPOSITION, ( WPARAM ) iSelStart, 0 );
        iLineEnd   = ( int ) SendMessage ( hwnd, SCI_LINEFROMPOSITION, ( WPARAM ) iSelEnd, 0 );
        if ( iLineStart == iLineEnd ) {
            iLineStart = 0;
            iLineEnd = ( int ) SendMessage ( hwnd, SCI_GETLINECOUNT, 0, 0 ) - 1;
        } else {
            if ( iSelEnd <= SendMessage ( hwnd, SCI_POSITIONFROMLINE, ( WPARAM ) iLineEnd, 0 ) ) {
                if ( iLineEnd - iLineStart >= 1 ) {
                    iLineEnd--;
                    bReducedSelection = TRUE;
                }
            }
        }
        for ( iLine = iLineStart; iLine <= iLineEnd; iLine++ ) {
            int iPos = ( int ) SendMessage ( hwnd, SCI_GETLINEENDPOSITION, ( WPARAM ) iLine, 0 );
            iMaxColumn = max ( iMaxColumn, ( int ) SendMessage ( hwnd, SCI_GETCOLUMN, ( WPARAM ) iPos, 0 ) );
        }
    } else {
        int iCurPos = ( int ) SendMessage ( hwnd, SCI_GETCURRENTPOS, 0, 0 );
        int iAnchorPos = ( int ) SendMessage ( hwnd, SCI_GETANCHOR, 0, 0 );
        iRcCurLine = ( int ) SendMessage ( hwnd, SCI_LINEFROMPOSITION, ( WPARAM ) iCurPos, 0 );
        iRcAnchorLine = ( int ) SendMessage ( hwnd, SCI_LINEFROMPOSITION, ( WPARAM ) iAnchorPos, 0 );
        iRcCurCol = ( int ) SendMessage ( hwnd, SCI_GETCOLUMN, ( WPARAM ) iCurPos, 0 );
        iRcAnchorCol = ( int ) SendMessage ( hwnd, SCI_GETCOLUMN, ( WPARAM ) iAnchorPos, 0 );
        bIsRectangular = TRUE;
        iLineStart = 0;
        iLineEnd = ( int ) SendMessage ( hwnd, SCI_GETLINECOUNT, 0, 0 ) - 1;
        for ( iLine = iLineStart; iLine <= iLineEnd; iLine++ ) {
            int iPos = ( int ) SendMessage ( hwnd, SCI_GETLINESELENDPOSITION, ( WPARAM ) iLine, 0 );
            if ( iPos != INVALID_POSITION ) {
                iMaxColumn = max ( iMaxColumn, ( int ) SendMessage ( hwnd, SCI_GETCOLUMN, ( WPARAM ) iPos, 0 ) );
            }
        }
    }
    pmszPadStr = LocalAlloc ( LPTR, ( iMaxColumn + 1 ) * sizeof ( char ) );
    if ( pmszPadStr ) {
        FillMemory ( pmszPadStr, LocalSize ( pmszPadStr ), ' ' );
        if ( !bNoUndoGroup ) {
            SendMessage ( hwnd, SCI_BEGINUNDOACTION, 0, 0 );
        }