diff options
Diffstat (limited to 'src/gui/doc/snippets/code/src_gui_text_qsyntaxhighlighter.cpp')
| -rw-r--r-- | src/gui/doc/snippets/code/src_gui_text_qsyntaxhighlighter.cpp | 111 |
1 files changed, 42 insertions, 69 deletions
diff --git a/src/gui/doc/snippets/code/src_gui_text_qsyntaxhighlighter.cpp b/src/gui/doc/snippets/code/src_gui_text_qsyntaxhighlighter.cpp index bb27eb9612..fa4798ea04 100644 --- a/src/gui/doc/snippets/code/src_gui_text_qsyntaxhighlighter.cpp +++ b/src/gui/doc/snippets/code/src_gui_text_qsyntaxhighlighter.cpp @@ -1,52 +1,23 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause +#include <QChar> +#include <QList> +#include <QRegularExpression> +#include <QSyntaxHighlighter> +#include <QTextBlockUserData> +#include <QTextEdit> +#include <QTextObject> + +namespace src_gui_text_qsyntaxhighlighter { +struct MyHighlighter : public QSyntaxHighlighter +{ + explicit MyHighlighter(QTextDocument *document) : QSyntaxHighlighter(document) { Q_UNUSED(document); } + + void highlightBlock(const QString &text); + void wrapper(); + + QString text; +}; //! [0] QTextEdit *editor = new QTextEdit; @@ -63,15 +34,14 @@ void MyHighlighter::highlightBlock(const QString &text) QRegularExpression expression("\\bMy[A-Za-z]+\\b"); QRegularExpressionMatchIterator i = expression.globalMatch(text); - while (i.hasNext()) - { - QRegularExpressionMatch match = i.next(); - setFormat(match.capturedStart(), match.capturedLength(), myClassFormat); + while (i.hasNext()) { + QRegularExpressionMatch match = i.next(); + setFormat(match.capturedStart(), match.capturedLength(), myClassFormat); } } //! [1] - +void MyHighlighter::wrapper() { //! [2] QTextCharFormat multiLineCommentFormat; multiLineCommentFormat.setForeground(Qt::red); @@ -86,32 +56,35 @@ if (previousBlockState() != 1) startIndex = text.indexOf(startExpression); while (startIndex >= 0) { - QRegularExpressionMatch endMatch; - int endIndex = text.indexOf(endExpression, startIndex, &endMatch); - int commentLength; - if (endIndex == -1) { - setCurrentBlockState(1); - commentLength = text.length() - startIndex; - } else { - commentLength = endIndex - startIndex - + endMatch.capturedLength(); - } - setFormat(startIndex, commentLength, multiLineCommentFormat); - startIndex = text.indexOf(startExpression, - startIndex + commentLength); + QRegularExpressionMatch endMatch; + int endIndex = text.indexOf(endExpression, startIndex, &endMatch); + int commentLength; + if (endIndex == -1) { + setCurrentBlockState(1); + commentLength = text.length() - startIndex; + } else { + commentLength = endIndex - startIndex + + endMatch.capturedLength(); + } + setFormat(startIndex, commentLength, multiLineCommentFormat); + startIndex = text.indexOf(startExpression, + startIndex + commentLength); } //! [2] +} // MyHighlighter::wrapper //! [3] struct ParenthesisInfo { - QChar char; + QChar character; int position; }; struct BlockData : public QTextBlockUserData { - QVector<ParenthesisInfo> parentheses; + QList<ParenthesisInfo> parentheses; }; //! [3] + +} // src_gui_text_qsyntaxhighlighter |