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/*
* Copyright (c) 2003-2008, John Wiegley. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of New Artisans LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _FLAGS_H
#define _FLAGS_H
template <typename T = boost::uint_least8_t>
class supports_flags
{
public:
typedef T flags_t;
protected:
flags_t flags_;
public:
supports_flags() : flags_(0) {
TRACE_CTOR(supports_flags, "");
}
supports_flags(const flags_t& arg) : flags_(arg) {
TRACE_CTOR(supports_flags, "copy");
}
~supports_flags() throw() {
TRACE_DTOR(supports_flags);
}
flags_t flags() const {
return flags_;
}
bool has_flags(const flags_t arg) const {
return flags_ & arg;
}
void set_flags(const flags_t arg) {
flags_ = arg;
}
void clear_flags() {
flags_ = 0;
}
void add_flags(const flags_t arg) {
flags_ |= arg;
}
void drop_flags(const flags_t arg) {
flags_ &= ~arg;
}
};
template <typename T = boost::uint_least8_t>
class delegates_flags : public boost::noncopyable
{
public:
typedef T flags_t;
protected:
supports_flags<T>& flags_;
public:
delegates_flags() : flags_() {
TRACE_CTOR(delegates_flags, "");
}
delegates_flags(supports_flags<T>& arg) : flags_(arg) {
TRACE_CTOR(delegates_flags, "const supports_flags<T>&");
}
~delegates_flags() throw() {
TRACE_DTOR(delegates_flags);
}
flags_t flags() const {
return flags_.flags();
}
bool has_flags(const flags_t arg) const {
return flags_.has_flags(arg);
}
void set_flags(const flags_t arg) {
flags_.set_flags(arg);
}
void clear_flags() {
flags_.clear_flags();
}
void add_flags(const flags_t arg) {
flags_.add_flags(arg);
}
void drop_flags(const flags_t arg) {
flags_.drop_flags(arg);
}
};
#endif // _FLAGS_H
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