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author | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
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committer | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
commit | 8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76 (patch) | |
tree | a17e1a767a89542ab59907462206d7dcf2e504b2 /examples/richtext/syntaxhighlighter | |
download | Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.zip Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.gz Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.bz2 |
Long live Qt for S60!
Diffstat (limited to 'examples/richtext/syntaxhighlighter')
-rw-r--r-- | examples/richtext/syntaxhighlighter/highlighter.cpp | 148 | ||||
-rw-r--r-- | examples/richtext/syntaxhighlighter/highlighter.h | 85 | ||||
-rw-r--r-- | examples/richtext/syntaxhighlighter/main.cpp | 53 | ||||
-rw-r--r-- | examples/richtext/syntaxhighlighter/mainwindow.cpp | 130 | ||||
-rw-r--r-- | examples/richtext/syntaxhighlighter/mainwindow.h | 76 | ||||
-rw-r--r-- | examples/richtext/syntaxhighlighter/syntaxhighlighter.pro | 19 |
6 files changed, 511 insertions, 0 deletions
diff --git a/examples/richtext/syntaxhighlighter/highlighter.cpp b/examples/richtext/syntaxhighlighter/highlighter.cpp new file mode 100644 index 0000000..5d9939d --- /dev/null +++ b/examples/richtext/syntaxhighlighter/highlighter.cpp @@ -0,0 +1,148 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "highlighter.h" + +//! [0] +Highlighter::Highlighter(QTextDocument *parent) + : QSyntaxHighlighter(parent) +{ + HighlightingRule rule; + + keywordFormat.setForeground(Qt::darkBlue); + keywordFormat.setFontWeight(QFont::Bold); + QStringList keywordPatterns; + keywordPatterns << "\\bchar\\b" << "\\bclass\\b" << "\\bconst\\b" + << "\\bdouble\\b" << "\\benum\\b" << "\\bexplicit\\b" + << "\\bfriend\\b" << "\\binline\\b" << "\\bint\\b" + << "\\blong\\b" << "\\bnamespace\\b" << "\\boperator\\b" + << "\\bprivate\\b" << "\\bprotected\\b" << "\\bpublic\\b" + << "\\bshort\\b" << "\\bsignals\\b" << "\\bsigned\\b" + << "\\bslots\\b" << "\\bstatic\\b" << "\\bstruct\\b" + << "\\btemplate\\b" << "\\btypedef\\b" << "\\btypename\\b" + << "\\bunion\\b" << "\\bunsigned\\b" << "\\bvirtual\\b" + << "\\bvoid\\b" << "\\bvolatile\\b"; + foreach (const QString &pattern, keywordPatterns) { + rule.pattern = QRegExp(pattern); + rule.format = keywordFormat; + highlightingRules.append(rule); +//! [0] //! [1] + } +//! [1] + +//! [2] + classFormat.setFontWeight(QFont::Bold); + classFormat.setForeground(Qt::darkMagenta); + rule.pattern = QRegExp("\\bQ[A-Za-z]+\\b"); + rule.format = classFormat; + highlightingRules.append(rule); +//! [2] + +//! [3] + singleLineCommentFormat.setForeground(Qt::red); + rule.pattern = QRegExp("//[^\n]*"); + rule.format = singleLineCommentFormat; + highlightingRules.append(rule); + + multiLineCommentFormat.setForeground(Qt::red); +//! [3] + +//! [4] + quotationFormat.setForeground(Qt::darkGreen); + rule.pattern = QRegExp("\".*\""); + rule.format = quotationFormat; + highlightingRules.append(rule); +//! [4] + +//! [5] + functionFormat.setFontItalic(true); + functionFormat.setForeground(Qt::blue); + rule.pattern = QRegExp("\\b[A-Za-z0-9_]+(?=\\()"); + rule.format = functionFormat; + highlightingRules.append(rule); +//! [5] + +//! [6] + commentStartExpression = QRegExp("/\\*"); + commentEndExpression = QRegExp("\\*/"); +} +//! [6] + +//! [7] +void Highlighter::highlightBlock(const QString &text) +{ + foreach (const HighlightingRule &rule, highlightingRules) { + QRegExp expression(rule.pattern); + int index = expression.indexIn(text); + while (index >= 0) { + int length = expression.matchedLength(); + setFormat(index, length, rule.format); + index = expression.indexIn(text, index + length); + } + } +//! [7] //! [8] + setCurrentBlockState(0); +//! [8] + +//! [9] + int startIndex = 0; + if (previousBlockState() != 1) + startIndex = commentStartExpression.indexIn(text); + +//! [9] //! [10] + while (startIndex >= 0) { +//! [10] //! [11] + int endIndex = commentEndExpression.indexIn(text, startIndex); + int commentLength; + if (endIndex == -1) { + setCurrentBlockState(1); + commentLength = text.length() - startIndex; + } else { + commentLength = endIndex - startIndex + + commentEndExpression.matchedLength(); + } + setFormat(startIndex, commentLength, multiLineCommentFormat); + startIndex = commentStartExpression.indexIn(text, startIndex + commentLength); + } +} +//! [11] diff --git a/examples/richtext/syntaxhighlighter/highlighter.h b/examples/richtext/syntaxhighlighter/highlighter.h new file mode 100644 index 0000000..2774212 --- /dev/null +++ b/examples/richtext/syntaxhighlighter/highlighter.h @@ -0,0 +1,85 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef HIGHLIGHTER_H +#define HIGHLIGHTER_H + +#include <QSyntaxHighlighter> + +#include <QHash> +#include <QTextCharFormat> + +QT_BEGIN_NAMESPACE +class QTextDocument; +QT_END_NAMESPACE + +//! [0] +class Highlighter : public QSyntaxHighlighter +{ + Q_OBJECT + +public: + Highlighter(QTextDocument *parent = 0); + +protected: + void highlightBlock(const QString &text); + +private: + struct HighlightingRule + { + QRegExp pattern; + QTextCharFormat format; + }; + QVector<HighlightingRule> highlightingRules; + + QRegExp commentStartExpression; + QRegExp commentEndExpression; + + QTextCharFormat keywordFormat; + QTextCharFormat classFormat; + QTextCharFormat singleLineCommentFormat; + QTextCharFormat multiLineCommentFormat; + QTextCharFormat quotationFormat; + QTextCharFormat functionFormat; +}; +//! [0] + +#endif diff --git a/examples/richtext/syntaxhighlighter/main.cpp b/examples/richtext/syntaxhighlighter/main.cpp new file mode 100644 index 0000000..fbb822d --- /dev/null +++ b/examples/richtext/syntaxhighlighter/main.cpp @@ -0,0 +1,53 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> + +#include "mainwindow.h" + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + MainWindow window; + window.resize(640, 512); + window.show(); + return app.exec(); +} diff --git a/examples/richtext/syntaxhighlighter/mainwindow.cpp b/examples/richtext/syntaxhighlighter/mainwindow.cpp new file mode 100644 index 0000000..a6312f9 --- /dev/null +++ b/examples/richtext/syntaxhighlighter/mainwindow.cpp @@ -0,0 +1,130 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "mainwindow.h" + +//! [0] +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent) +{ + setupFileMenu(); + setupHelpMenu(); + setupEditor(); + + setCentralWidget(editor); + setWindowTitle(tr("Syntax Highlighter")); +} +//! [0] + +void MainWindow::about() +{ + QMessageBox::about(this, tr("About Syntax Highlighter"), + tr("<p>The <b>Syntax Highlighter</b> example shows how " \ + "to perform simple syntax highlighting by subclassing " \ + "the QSyntaxHighlighter class and describing " \ + "highlighting rules using regular expressions.</p>")); +} + +void MainWindow::newFile() +{ + editor->clear(); +} + +void MainWindow::openFile(const QString &path) +{ + QString fileName = path; + + if (fileName.isNull()) + fileName = QFileDialog::getOpenFileName(this, + tr("Open File"), "", "C++ Files (*.cpp *.h)"); + + if (!fileName.isEmpty()) { + QFile file(fileName); + if (file.open(QFile::ReadOnly | QFile::Text)) + editor->setPlainText(file.readAll()); + } +} + +//! [1] +void MainWindow::setupEditor() +{ + QFont font; + font.setFamily("Courier"); + font.setFixedPitch(true); + font.setPointSize(10); + + editor = new QTextEdit; + editor->setFont(font); + + highlighter = new Highlighter(editor->document()); + + QFile file("mainwindow.h"); + if (file.open(QFile::ReadOnly | QFile::Text)) + editor->setPlainText(file.readAll()); +} +//! [1] + +void MainWindow::setupFileMenu() +{ + QMenu *fileMenu = new QMenu(tr("&File"), this); + menuBar()->addMenu(fileMenu); + + fileMenu->addAction(tr("&New"), this, SLOT(newFile()), + QKeySequence(tr("Ctrl+N", + "File|New"))); + fileMenu->addAction(tr("&Open..."), this, SLOT(openFile()), + QKeySequence(tr("Ctrl+O", + "File|Open"))); + fileMenu->addAction(tr("E&xit"), qApp, SLOT(quit()), + QKeySequence(tr("Ctrl+Q", + "File|Exit"))); +} + +void MainWindow::setupHelpMenu() +{ + QMenu *helpMenu = new QMenu(tr("&Help"), this); + menuBar()->addMenu(helpMenu); + + helpMenu->addAction(tr("&About"), this, SLOT(about())); + helpMenu->addAction(tr("About &Qt"), qApp, SLOT(aboutQt())); +} diff --git a/examples/richtext/syntaxhighlighter/mainwindow.h b/examples/richtext/syntaxhighlighter/mainwindow.h new file mode 100644 index 0000000..12334ab --- /dev/null +++ b/examples/richtext/syntaxhighlighter/mainwindow.h @@ -0,0 +1,76 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MAINWINDOW_H +#define MAINWINDOW_H + +#include <QMainWindow> + +#include "highlighter.h" + +QT_BEGIN_NAMESPACE +class QTextEdit; +QT_END_NAMESPACE + +//! [0] +class MainWindow : public QMainWindow +{ + Q_OBJECT + +public: + MainWindow(QWidget *parent = 0); + +public slots: + void about(); + void newFile(); + void openFile(const QString &path = QString()); + +private: + void setupEditor(); + void setupFileMenu(); + void setupHelpMenu(); + + QTextEdit *editor; + Highlighter *highlighter; +}; +//! [0] + +#endif diff --git a/examples/richtext/syntaxhighlighter/syntaxhighlighter.pro b/examples/richtext/syntaxhighlighter/syntaxhighlighter.pro new file mode 100644 index 0000000..4b90aa3 --- /dev/null +++ b/examples/richtext/syntaxhighlighter/syntaxhighlighter.pro @@ -0,0 +1,19 @@ +HEADERS = highlighter.h \ + mainwindow.h +SOURCES = highlighter.cpp \ + mainwindow.cpp \ + main.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/richtext/syntaxhighlighter +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS syntaxhighlighter.pro examples +sources.path = $$[QT_INSTALL_EXAMPLES]/richtext/syntaxhighlighter +INSTALLS += target sources + +include($$QT_SOURCE_TREE/examples/examplebase.pri) + +wince*: { + addFiles.sources = main.cpp mainwindow.cpp + addFiles.path = . + DEPLOYMENT += addFiles +} |