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/**********************************************************************
**
** Copyright (C) 2000 Trolltech AS. All rights reserved.
**
** This file is part of Qt Designer.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include "syntaxhighlighter_html.h"
#include "qstring.h"
#include "qmap.h"
#include "qapplication.h"
SyntaxHighlighter_HTML::SyntaxHighlighter_HTML()
: QTextPreProcessor(), lastFormat( 0 ), lastFormatId( -1 )
{
QFont f( qApp->font() );
addFormat(Standard, new QTextFormat(f, qApp->palette().color(QPalette::Active, QColorGroup::Text)));
addFormat(Keyword, new QTextFormat(f, qApp->palette().color(QPalette::Active, QColorGroup::Dark)));
addFormat(Attribute, new QTextFormat(f, qApp->palette().color(QPalette::Active, QColorGroup::Link)));
addFormat(AttribValue, new QTextFormat(f, qApp->palette().color(QPalette::Active, QColorGroup::LinkVisited)));
}
SyntaxHighlighter_HTML::~SyntaxHighlighter_HTML()
{
}
void SyntaxHighlighter_HTML::process( QTextDocument *doc, QTextParagraph *string, int, bool invalidate )
{
QTextFormat *formatStandard = format( Standard );
QTextFormat *formatKeyword = format( Keyword );
QTextFormat *formatAttribute = format( Attribute );
QTextFormat *formatAttribValue = format( AttribValue );
const int StateStandard = 0;
const int StateTag = 1;
const int StateAttribute = 2;
const int StateAttribVal = 3;
QString buffer = "";
int state = StateStandard;
if ( string->prev() ) {
if ( string->prev()->endState() == -1 )
process( doc, string->prev(), 0, FALSE );
state = string->prev()->endState();
}
int i = 0;
for ( ;; ) {
QChar c = string->at( i )->c;
if ( c == '<' ) {
if ( state != StateStandard )
string->setFormat( i - buffer.length(), buffer.length(), formatStandard, FALSE );
buffer = c;
state = StateTag;
string->setFormat( i, 1, formatKeyword, FALSE );
}
else if ( c == '>' && ( state != StateStandard ) ) {
string->setFormat( i, 1, formatKeyword, FALSE );
buffer = "";
state = StateStandard;
}
else if ( c == ' ' && state == StateTag ) {
buffer += c;
string->setFormat( i, 1, formatStandard, FALSE );
state = StateAttribute;
}
else if ( c == '=' && state == StateAttribute ) {
buffer += c;
string->setFormat( i, 1, formatStandard, FALSE );
state = StateAttribute;
}
else if ( c == '\"' && state == StateAttribute ) {
buffer += c;
string->setFormat( i, 1, formatStandard, FALSE );
state = StateAttribVal;
}
else if ( c == '\"' && state == StateAttribVal ) {
buffer += c;
string->setFormat( i, 1, formatStandard, FALSE );
state = StateAttribute;
}
else if ( state == StateAttribute ) {
buffer += c;
string->setFormat( i, 1, formatAttribute, FALSE );
}
else if ( state == StateAttribVal ) {
buffer += c;
string->setFormat( i, 1, formatAttribValue, FALSE );
}
else if ( state == StateTag ) {
string->setFormat( i, 1, formatKeyword, FALSE );
buffer += c;
}
else if ( state == StateStandard ) {
string->setFormat( i, 1, formatStandard, FALSE );
}
i++;
if ( i >= string->length() )
break;
}
string->setEndState( state );
string->setFirstPreProcess( FALSE );
if ( invalidate && string->next() &&
!string->next()->firstPreProcess() && string->next()->endState() != -1 ) {
QTextParagraph *p = string->next();
while ( p ) {
if ( p->endState() == -1 )
return;
p->setEndState( -1 );
p = p->next();
}
}
}
QTextFormat *SyntaxHighlighter_HTML::format( int id )
{
if ( lastFormatId == id && lastFormat )
return lastFormat;
QTextFormat *f = formats[ id ];
lastFormat = f ? f : formats[ 0 ];
lastFormatId = id;
return lastFormat;
}
void SyntaxHighlighter_HTML::addFormat( int id, QTextFormat *f )
{
formats.insert( id, f );
}
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