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Diffstat (limited to 'source/blender/freestyle/intern/app/ConfigIO.h')
| -rwxr-xr-x | source/blender/freestyle/intern/app/ConfigIO.h | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/app/ConfigIO.h b/source/blender/freestyle/intern/app/ConfigIO.h new file mode 100755 index 00000000000..15f3cd07575 --- /dev/null +++ b/source/blender/freestyle/intern/app/ConfigIO.h @@ -0,0 +1,181 @@ +// +// Filename : ConfigIO.h +// Author(s) : Emmanuel Turquin +// Purpose : Configuration management +// Date of creation : 26/02/2003 +// +/////////////////////////////////////////////////////////////////////////////// + + +// +// Copyright (C) : Please refer to the COPYRIGHT file distributed +// with this source distribution. +// +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License +// as published by the Free Software Foundation; either version 2 +// of the License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +// +/////////////////////////////////////////////////////////////////////////////// + +#ifndef CONFIGIO_H +# define CONFIGIO_H + +# include <qstring.h> +# include <qstringlist.h> +# include <qtextstream.h> +# include <qdom.h> +# include "../system/FreestyleConfig.h" + +class ConfigIO +{ + public: + + ConfigIO(QString filename = "", + const QString& doc_type = "config_file", + bool automatic = false, + const QString& sep = "/"); + ~ConfigIO(); + + QString getDefaultFile() const; + void setDefaultFile(const QString& filename); + + bool getAuto() const; + void setAuto(bool automatic); + + QString getPathSep() const; + void setPathSep(const QString& sep); + + int loadFile(const QString& filename = ""); + int saveFile(const QString& filename = "") const; + + template <class T> int getValue(const QString& path, T& res) const; + template <class T> int setValue(const QString& path, const T& src); + + private: + + QString _path_sep; + QString _default_file; + bool _automatic; + + QDomDocument _tree; + QString _doc_type; +}; + + +// +// Implementation of templated methods +// +/////////////////////////////////////////////////// + +namespace Internal { + + template <class T> + struct readValue { + void operator()(const QString &value, T &res) { + QTextStream((QString *)&value, QIODevice::ReadOnly)>> res; + } + }; + + template <> + struct readValue<QString> { + void operator()(const QString& value, QString& res) { + res = value; + } + }; + + template <> + struct readValue<bool> { + void operator()(const QString& value, bool& res) { + short res_tmp; + QTextStream((QString *)&value, QIODevice::ReadOnly) >> res_tmp; + res = res_tmp; + } + }; + +} // end of namespace Internal + + +template <class T> +int ConfigIO::getValue(const QString& path, T& res) const { + + // Split path + QStringList strlist; + strlist = path.split(_path_sep); + + unsigned size = strlist.size(); + if (size-- < 2) + return 1; + + // try to find the right element + QDomElement right_node; + QDomElement node = _tree.documentElement().firstChild().toElement(); + for (unsigned i = 0; + !node.isNull() && i < size; + node = node.firstChild().toElement(), i++) { + while (!node.isNull() && node.tagName() != strlist[i]) + node = node.nextSibling().toElement(); + right_node = node; + } + + // and the right attribute + if (right_node.hasAttribute(strlist[size])) { + QString value = right_node.attribute(strlist[size]); + Internal::readValue<T> rv; + rv(value, res); + return 0; + } + + return 1; +} + + +template <class T> +int ConfigIO::setValue(const QString& path, const T& src) { + + // Split path + QStringList strlist = path.split(_path_sep); + + unsigned size = strlist.size(); + if (size-- < 2) + return 1; + + // verify that the tree isn't empty + // if so, create a root + QDomElement node = _tree.documentElement(); + if (node.isNull()) { + node = _tree.createElement(_doc_type); + _tree.appendChild(node); + } + + // find the right element + QDomElement child = node.firstChild().toElement(); + for (unsigned i = 0; + i < size; + node = child, child = child.firstChild().toElement(), i++) { + while (!child.isNull() && child.tagName() != strlist[i]) + child = child.nextSibling().toElement(); + if (child.isNull()) { + child = _tree.createElement(strlist[i]); + node.appendChild(child); + } + } + + // and set the attribute + QString value; + QTextStream(&value, QIODevice::WriteOnly) << src; + node.setAttribute(strlist[size], value); + + return 0; +} + +#endif // CONFIGIO_H |