| -rw-r--r-- | libopie2/opiecore/oconfig.h | 167 |
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diff --git a/libopie2/opiecore/oconfig.h b/libopie2/opiecore/oconfig.h new file mode 100644 index 0000000..afe14b1 --- a/dev/null +++ b/libopie2/opiecore/oconfig.h @@ -0,0 +1,167 @@ +/* + This file is part of the Opie Project + + (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de> + Inspired by the config classes from the KDE Project which are + =. (C) 1997 Matthias Kalle Dalheimer <kalle@kde.org> + .=l. + .>+-= + _;:, .> :=|. This program is free software; you can +.> <`_, > . <= redistribute it and/or modify it under +:`=1 )Y*s>-.-- : the terms of the GNU Library General Public +.="- .-=="i, .._ License as published by the Free Software + - . .-<_> .<> Foundation; either version 2 of the License, + ._= =} : or (at your option) any later version. + .%`+i> _;_. + .i_,=:_. -<s. 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 +..}^=.= = ; Library General Public License for more +++= -. .` .: details. + : = ...= . :.=- + -. .:....=;==+<; You should have received a copy of the GNU + -_. . . )=. = Library General Public License along with + -- :-=` this library; see the file COPYING.LIB. + If not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. +*/ + +#ifndef OCONFIG_H +#define OCONFIG_H + +//FIXME: Implement for X11 or reuse libqpe/Config there also? + +#include <qpe/config.h> + +class QColor; +class QFont; + +/** + * A Configuration class based on the Qtopia @ref Config class + * featuring additional handling of color and font entries + */ + +class OConfig : public Config +{ + public: + + /** + * Constructs a OConfig object. + * + * @param name A file to parse. + */ + OConfig( const QString &name, Domain domain = User ); + + /** + * Destructs the OConfig object. + * + * Writes back any dirty configuration entries, and destroys + * dynamically created objects. + */ + virtual ~OConfig(); + + /** + * Returns the name of the group in which we are + * searching for keys and from which we are retrieving entries. + * + * @return The current group. + */ + const QString& group() { return git.key(); }; + + /** + * Reads a @ref QColor entry. + * + * Read the value of an entry specified by @p pKey in the current group + * and interpret it as a color. + * + * @param pKey The key to search for. + * @param pDefault A default value (null QColor by default) returned if the + * key was not found or if the value cannot be interpreted. + * @return The value for this key. + */ + QColor readColorEntry( const QString& key, const QColor* pDefault ) const; + + /** + * Reads a @ref QFont value. + * + * Read the value of an entry specified by @p pKey in the current group + * and interpret it as a font object. + * + * @param pKey The key to search for. + * @param pDefault A default value (null QFont by default) returned if the + * key was not found or if the read value cannot be interpreted. + * @return The value for this key. + */ + QFont readFontEntry( const QString& key, const QFont* pDefault ) const; + +}; + +/** + * Helper class to facilitate working with @ref OConfig / @ref OSimpleConfig + * groups. + * + * Careful programmers always set the group of a + * @ref OConfig object to the group they want to read from + * and set it back to the old one of afterwards. This is usually + * written as: + * <pre> + * + * QString oldgroup config()->group(); + * config()->setGroup( "TheGroupThatIWant" ); + * ... + * config()->writeEntry( "Blah", "Blubb" ); + * + * config()->setGroup( oldgroup ); + * </pre> + * + * In order to facilitate this task, you can use + * OConfigGroupSaver. Simply construct such an object ON THE STACK + * when you want to switch to a new group. Then, when the object goes + * out of scope, the group will automatically be restored. If you + * want to use several different groups within a function or method, + * you can still use OConfigGroupSaver: Simply enclose all work with + * one group (including the creation of the OConfigGroupSaver object) + * in one block. + * + * @author Matthias Kalle Dalheimer <Kalle@kde.org> + * @version $Id$ + * @see OConfig + * @short Helper class for easier use of OConfig groups + */ + +class OConfigGroupSaver +{ + public: + /** + * Constructor. You pass a pointer to the OConfigBase-derived + * object you want to work with and a string indicating the _new_ + * group. + * @param config The OConfig-derived object this + * OConfigGroupSaver works on. + * @param group The new group that the config object should switch to. + */ + OConfigGroupSaver( OConfig* config, QString group ) :_config(config), _oldgroup(config->group() ) + { _config->setGroup( group ); } + + OConfigGroupSaver( OConfig* config, const char *group ) :_config(config), _oldgroup(config->group()) + { _config->setGroup( group ); } + + OConfigGroupSaver( OConfig* config, const QCString &group ) : _config(config), _oldgroup(config->group()) + { _config->setGroup( group ); } + + ~OConfigGroupSaver() { _config->setGroup( _oldgroup ); } + + OConfig* config() { return _config; }; + + private: + OConfig* _config; + QString _oldgroup; + + OConfigGroupSaver( const OConfigGroupSaver& ); + OConfigGroupSaver& operator=( const OConfigGroupSaver& ); +}; + +#endif // OCONFIG_H |