--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/designer/src/lib/shared/csshighlighter.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,188 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Designer of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "csshighlighter_p.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace qdesigner_internal {
+
+CssHighlighter::CssHighlighter(QTextDocument *document)
+: QSyntaxHighlighter(document)
+{
+}
+
+void CssHighlighter::highlightBlock(const QString& text)
+{
+ enum Token { ALNUM, LBRACE, RBRACE, COLON, SEMICOLON, COMMA, QUOTE, SLASH, STAR };
+ static const int transitions[10][9] = {
+ { Selector, Property, Selector, Pseudo, Property, Selector, Quote, MaybeComment, Selector }, // Selector
+ { Property, Property, Selector, Value, Property, Property, Quote, MaybeComment, Property }, // Property
+ { Value, Property, Selector, Value, Property, Value, Quote, MaybeComment, Value }, // Value
+ { Pseudo1, Property, Selector, Pseudo2, Selector, Selector, Quote, MaybeComment, Pseudo }, // Pseudo
+ { Pseudo1, Property, Selector, Pseudo, Selector, Selector, Quote, MaybeComment, Pseudo1 }, // Pseudo1
+ { Pseudo2, Property, Selector, Pseudo, Selector, Selector, Quote, MaybeComment, Pseudo2 }, // Pseudo2
+ { Quote, Quote, Quote, Quote, Quote, Quote, -1, Quote, Quote }, // Quote
+ { -1, -1, -1, -1, -1, -1, -1, -1, Comment }, // MaybeComment
+ { Comment, Comment, Comment, Comment, Comment, Comment, Comment, Comment, MaybeCommentEnd }, // Comment
+ { Comment, Comment, Comment, Comment, Comment, Comment, Comment, -1, MaybeCommentEnd } // MaybeCommentEnd
+ };
+
+ int lastIndex = 0;
+ bool lastWasSlash = false;
+ int state = previousBlockState(), save_state;
+ if (state == -1) {
+ // As long as the text is empty, leave the state undetermined
+ if (text.isEmpty()) {
+ setCurrentBlockState(-1);
+ return;
+ }
+ // The initial state is based on the precense of a : and the absense of a {.
+ // This is because Qt style sheets support both a full stylesheet as well as
+ // an inline form with just properties.
+ state = save_state = (text.indexOf(QLatin1Char(':')) > -1 &&
+ text.indexOf(QLatin1Char('{')) == -1) ? Property : Selector;
+ } else {
+ save_state = state>>16;
+ state &= 0x00ff;
+ }
+
+ if (state == MaybeCommentEnd) {
+ state = Comment;
+ } else if (state == MaybeComment) {
+ state = save_state;
+ }
+
+ for (int i = 0; i < text.length(); i++) {
+ int token = ALNUM;
+ const QChar c = text.at(i);
+ const char a = c.toAscii();
+
+ if (state == Quote) {
+ if (a == '\\') {
+ lastWasSlash = true;
+ } else {
+ if (a == '\"' && !lastWasSlash) {
+ token = QUOTE;
+ }
+ lastWasSlash = false;
+ }
+ } else {
+ switch (a) {
+ case '{': token = LBRACE; break;
+ case '}': token = RBRACE; break;
+ case ':': token = COLON; break;
+ case ';': token = SEMICOLON; break;
+ case ',': token = COMMA; break;
+ case '\"': token = QUOTE; break;
+ case '/': token = SLASH; break;
+ case '*': token = STAR; break;
+ default: break;
+ }
+ }
+
+ int new_state = transitions[state][token];
+
+ if (new_state != state) {
+ bool include_token = new_state == MaybeCommentEnd || (state == MaybeCommentEnd && new_state!= Comment)
+ || state == Quote;
+ highlight(text, lastIndex, i-lastIndex+include_token, state);
+
+ if (new_state == Comment) {
+ lastIndex = i-1; // include the slash and star
+ } else {
+ lastIndex = i + ((token == ALNUM || new_state == Quote) ? 0 : 1);
+ }
+ }
+
+ if (new_state == -1) {
+ state = save_state;
+ } else if (state <= Pseudo2) {
+ save_state = state;
+ state = new_state;
+ } else {
+ state = new_state;
+ }
+ }
+
+ highlight(text, lastIndex, text.length() - lastIndex, state);
+ setCurrentBlockState(state + (save_state<<16));
+}
+
+void CssHighlighter::highlight(const QString &text, int start, int length, int state)
+{
+ if (start >= text.length() || length <= 0)
+ return;
+
+ QTextCharFormat format;
+
+ switch (state) {
+ case Selector:
+ setFormat(start, length, Qt::darkRed);
+ break;
+ case Property:
+ setFormat(start, length, Qt::blue);
+ break;
+ case Value:
+ setFormat(start, length, Qt::black);
+ break;
+ case Pseudo1:
+ setFormat(start, length, Qt::darkRed);
+ break;
+ case Pseudo2:
+ setFormat(start, length, Qt::darkRed);
+ break;
+ case Quote:
+ setFormat(start, length, Qt::darkMagenta);
+ break;
+ case Comment:
+ case MaybeCommentEnd:
+ format.setForeground(Qt::darkGreen);
+ setFormat(start, length, format);
+ break;
+ default:
+ break;
+ }
+}
+
+} // namespace qdesigner_internal
+
+QT_END_NAMESPACE