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Diffstat (limited to 'tools/shared/qmlstreamwriter.cpp')
| -rw-r--r-- | tools/shared/qmlstreamwriter.cpp | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/tools/shared/qmlstreamwriter.cpp b/tools/shared/qmlstreamwriter.cpp new file mode 100644 index 0000000000..b0fbc4e443 --- /dev/null +++ b/tools/shared/qmlstreamwriter.cpp @@ -0,0 +1,190 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the tools applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qmlstreamwriter.h" + +#include <QtCore/QBuffer> +#include <QtCore/QStringList> + +QmlStreamWriter::QmlStreamWriter(QByteArray *array) + : m_indentDepth(0) + , m_pendingLineLength(0) + , m_maybeOneline(false) + , m_stream(new QBuffer(array)) +{ + m_stream->open(QIODevice::WriteOnly); +} + +void QmlStreamWriter::writeStartDocument() +{ +} + +void QmlStreamWriter::writeEndDocument() +{ +} + +void QmlStreamWriter::writeLibraryImport(const QString &uri, int majorVersion, int minorVersion, const QString &as) +{ + m_stream->write(QString::fromLatin1("import %1 %2.%3").arg(uri, QString::number(majorVersion), QString::number(minorVersion)).toUtf8()); + if (!as.isEmpty()) + m_stream->write(QString::fromLatin1(" as %1").arg(as).toUtf8()); + m_stream->write("\n"); +} + +void QmlStreamWriter::writeStartObject(const QString &component) +{ + flushPotentialLinesWithNewlines(); + writeIndent(); + m_stream->write(QString::fromLatin1("%1 {").arg(component).toUtf8()); + ++m_indentDepth; + m_maybeOneline = true; +} + +void QmlStreamWriter::writeEndObject() +{ + if (m_maybeOneline && !m_pendingLines.isEmpty()) { + --m_indentDepth; + for (int i = 0; i < m_pendingLines.size(); ++i) { + m_stream->write(" "); + m_stream->write(m_pendingLines.at(i).trimmed()); + if (i != m_pendingLines.size() - 1) + m_stream->write(";"); + } + m_stream->write(" }\n"); + m_pendingLines.clear(); + m_pendingLineLength = 0; + m_maybeOneline = false; + } else { + flushPotentialLinesWithNewlines(); + --m_indentDepth; + writeIndent(); + m_stream->write("}\n"); + } +} + +void QmlStreamWriter::writeScriptBinding(const QString &name, const QString &rhs) +{ + writePotentialLine(QString::fromLatin1("%1: %2").arg(name, rhs).toUtf8()); +} + +void QmlStreamWriter::writeBooleanBinding(const QString &name, bool value) +{ + writeScriptBinding(name, value ? QLatin1String("true") : QLatin1String("false")); +} + +void QmlStreamWriter::writeArrayBinding(const QString &name, const QStringList &elements) +{ + flushPotentialLinesWithNewlines(); + writeIndent(); + + // try to use a single line + QString singleLine; + singleLine += QString::fromLatin1("%1: [").arg(name); + for (int i = 0; i < elements.size(); ++i) { + singleLine += elements.at(i); + if (i != elements.size() - 1) + singleLine += QLatin1String(", "); + } + singleLine += QLatin1String("]\n"); + if (singleLine.size() + m_indentDepth * 4 < 80) { + m_stream->write(singleLine.toUtf8()); + return; + } + + // write multi-line + m_stream->write(QString::fromLatin1("%1: [\n").arg(name).toUtf8()); + ++m_indentDepth; + for (int i = 0; i < elements.size(); ++i) { + writeIndent(); + m_stream->write(elements.at(i).toUtf8()); + if (i != elements.size() - 1) { + m_stream->write(",\n"); + } else { + m_stream->write("\n"); + } + } + --m_indentDepth; + writeIndent(); + m_stream->write("]\n"); +} + +void QmlStreamWriter::write(const QString &data) +{ + flushPotentialLinesWithNewlines(); + m_stream->write(data.toUtf8()); +} + +void QmlStreamWriter::writeScriptObjectLiteralBinding(const QString &name, const QList<QPair<QString, QString> > &keyValue) +{ + flushPotentialLinesWithNewlines(); + writeIndent(); + m_stream->write(QString::fromLatin1("%1: {\n").arg(name).toUtf8()); + ++m_indentDepth; + for (int i = 0; i < keyValue.size(); ++i) { + const QString key = keyValue.at(i).first; + const QString value = keyValue.at(i).second; + writeIndent(); + m_stream->write(QString::fromLatin1("%1: %2").arg(key, value).toUtf8()); + if (i != keyValue.size() - 1) { + m_stream->write(",\n"); + } else { + m_stream->write("\n"); + } + } + --m_indentDepth; + writeIndent(); + m_stream->write("}\n"); +} + +void QmlStreamWriter::writeIndent() +{ + m_stream->write(QByteArray(m_indentDepth * 4, ' ')); +} + +void QmlStreamWriter::writePotentialLine(const QByteArray &line) +{ + m_pendingLines.append(line); + m_pendingLineLength += line.size(); + if (m_pendingLineLength >= 80) { + flushPotentialLinesWithNewlines(); + } +} + +void QmlStreamWriter::flushPotentialLinesWithNewlines() +{ + if (m_maybeOneline) + m_stream->write("\n"); + for (const QByteArray &line : qAsConst(m_pendingLines)) { + writeIndent(); + m_stream->write(line); + m_stream->write("\n"); + } + m_pendingLines.clear(); + m_pendingLineLength = 0; + m_maybeOneline = false; +} |