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/**********************************************************************
** Copyright (C) 2000-2008 Trolltech ASA. All rights reserved.
**
** This file is part of TQt Designer.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at [email protected].
**
** Licensees holding valid TQt Commercial licenses may use this file in
** accordance with the TQt Commercial License Agreement provided with
** the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#include "cindent.h"
#include "qregexp.h"
extern int indentForBottomLine( const TQStringList& program, TQChar typedIn );
extern void setTabSize( int s );
extern void setIndentSize( int s );
CIndent::CIndent()
: TQTextIndent(), tabSize( 8 ), indentSize( 4 ),
autoIndent( TRUE ), keepTabs( TRUE ), lastDoc( 0 )
{
}
static int indentation( const TQString &s )
{
if ( s.simplifyWhiteSpace().length() == 0 )
return 0;
int i = 0;
int ind = 0;
while ( i < (int)s.length() ) {
TQChar c = s.at( i );
if ( c == ' ' )
ind++;
else if ( c == '\t' )
ind += 8;
else
break;
++i;
}
return ind;
}
void CIndent::tabify( TQString &s )
{
if ( !keepTabs )
return;
int i = 0;
for ( ;; ) {
for ( int j = i; j < (int)s.length(); ++j ) {
if ( s[ j ] != ' ' && s[ j ] != '\t' ) {
if ( j > i ) {
TQString t = s.mid( i, j - i );
int spaces = 0;
for ( int k = 0; k < (int)t.length(); ++k )
spaces += ( t[ k ] == ' ' ? 1 : tabSize );
s.remove( i, t.length() );
int tabs = spaces / tabSize;
spaces = spaces - ( tabSize * tabs );
TQString tmp;
tmp.fill( ' ', spaces );
if ( spaces > 0 )
s.insert( i, tmp );
tmp.fill( '\t', tabs );
if ( tabs > 0 )
s.insert( i, tmp );
}
break;
}
}
i = s.find( '\n', i );
if ( i == -1 )
break;
++i;
}
}
void CIndent::indentLine( TQTextParagraph *p, int &oldIndent, int &newIndent )
{
TQString indentString;
indentString.fill( ' ', newIndent );
indentString.append( "a" );
tabify( indentString );
indentString.remove( indentString.length() - 1, 1 );
newIndent = indentString.length();
oldIndent = 0;
while ( p->length() > 0 && ( p->at( 0 )->c == ' ' || p->at( 0 )->c == '\t' ) ) {
++oldIndent;
p->remove( 0, 1 );
}
if ( p->string()->length() == 0 )
p->append( " " );
if ( !indentString.isEmpty() )
p->insert( 0, indentString );
}
void CIndent::indent( TQTextDocument *doc, TQTextParagraph *p, int *oldIndent, int *newIndent )
{
lastDoc = doc;
int oi = indentation( p->string()->toString() );
TQStringList code;
TQTextParagraph *parag = doc->firstParagraph();
while ( parag ) {
code << parag->string()->toString();
if ( parag == p )
break;
parag = parag->next();
}
int ind = indentForBottomLine( code, TQChar::null );
indentLine( p, oi, ind );
if ( oldIndent )
*oldIndent = oi;
if ( newIndent )
*newIndent = ind;
}
void CIndent::reindent()
{
if ( !lastDoc )
return;
// #### this is sloooooooow (O(n^2))
TQTextParagraph *parag = lastDoc->firstParagraph();
while ( parag ) {
indent( lastDoc, parag, 0, 0 );
parag = parag->next();
}
}
void CIndent::setTabSize( int ts )
{
tabSize = ts;
::setTabSize( ts );
}
void CIndent::setIndentSize( int is )
{
indentSize = is;
::setIndentSize( is );
}
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