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Diffstat (limited to 'sources/shiboken2/generator/indentor.h')
-rw-r--r-- | sources/shiboken2/generator/indentor.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/sources/shiboken2/generator/indentor.h b/sources/shiboken2/generator/indentor.h new file mode 100644 index 000000000..111259f12 --- /dev/null +++ b/sources/shiboken2/generator/indentor.h @@ -0,0 +1,85 @@ +/**************************************************************************** +** +** Copyright (C) 2019 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt for Python. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef INDENTOR_H +#define INDENTOR_H + +#include <QtCore/QTextStream> + +/** +* Utility class to store the indentation level, use it in a QTextStream. +*/ + +template <int tabWidth> +class IndentorBase +{ +public: + int total() const { return tabWidth * indent; } + + int indent = 0; +}; + +using Indentor = IndentorBase<4>; +using Indentor1 = IndentorBase<1>; + +/** +* Class that use the RAII idiom to set and unset the indentation level. +*/ + +template <int tabWidth> +class IndentationBase +{ +public: + using Indentor = IndentorBase<tabWidth>; + + IndentationBase(Indentor &indentor, int count = 1) : m_count(count), indentor(indentor) + { + indentor.indent += m_count; + } + + ~IndentationBase() + { + indentor.indent -= m_count; + } + +private: + const int m_count; + Indentor &indentor; +}; + +using Indentation = IndentationBase<4>; + +template <int tabWidth> +inline QTextStream &operator <<(QTextStream &s, const IndentorBase<tabWidth> &indentor) +{ + for (int i = 0, total = indentor.total(); i < total; ++i) + s << ' '; + return s; +} + +#endif // GENERATOR_H |