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git-svn-id: http://moon:8086/svn/software/trunk/projects/mpsk_rx_gui@97 b431acfa-c32f-4a4a-93f1-934dc6c82436
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jens
2014-12-21 06:28:18 +00:00
parent dc5560392f
commit 91552cffe9
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JuceLibraryCode/modules/juce_core/maths/juce_NormalisableRange.h
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/*
==============================================================================
This file is part of the juce_core module of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission to use, copy, modify, and/or distribute this software for any purpose with
or without fee is hereby granted, provided that the above copyright notice and this
permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
------------------------------------------------------------------------------
NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
All other JUCE modules are covered by a dual GPL/commercial license, so if you are
using any other modules, be sure to check that you also comply with their license.
For more details, visit www.juce.com
==============================================================================
*/
#ifndef JUCE_NORMALISABLERANGE_H_INCLUDED
#define JUCE_NORMALISABLERANGE_H_INCLUDED
//==============================================================================
/**
Represents a mapping between an arbitrary range of values and a
normalised 0->1 range.
The properties of the mapping also include an optional snapping interval
and skew-factor.
@see Range
*/
template<typename ValueType>
class NormalisableRange
{
public:
/** Creates a continuous range that performs a dummy mapping. */
NormalisableRange() noexcept : start(), end (1), interval(), skew (static_cast<ValueType> (1)) {}
/** Creates a copy of another range. */
NormalisableRange (const NormalisableRange& other) noexcept
: start (other.start), end (other.end),
interval (other.interval), skew (other.skew)
{
checkInvariants();
}
/** Creates a copy of another range. */
NormalisableRange& operator= (const NormalisableRange& other) noexcept
{
start = other.start;
end = other.end;
interval = other.interval;
skew = other.skew;
checkInvariants();
return *this;
}
/** Creates a NormalisableRange with a given range, interval and skew factor. */
NormalisableRange (ValueType rangeStart,
ValueType rangeEnd,
ValueType intervalValue,
ValueType skewFactor) noexcept
: start (rangeStart), end (rangeEnd),
interval (intervalValue), skew (skewFactor)
{
checkInvariants();
}
/** Creates a NormalisableRange with a given range and interval, but a dummy skew-factor. */
NormalisableRange (ValueType rangeStart,
ValueType rangeEnd,
ValueType intervalValue) noexcept
: start (rangeStart), end (rangeEnd),
interval (intervalValue), skew (static_cast<ValueType> (1))
{
checkInvariants();
}
/** Creates a NormalisableRange with a given range, continuous interval, but a dummy skew-factor. */
NormalisableRange (ValueType rangeStart,
ValueType rangeEnd) noexcept
: start (rangeStart), end (rangeEnd),
interval(), skew (static_cast<ValueType> (1))
{
checkInvariants();
}
/** Uses the properties of this mapping to convert a non-normalised value to
its 0->1 representation.
*/
ValueType convertTo0to1 (ValueType v) const noexcept
{
ValueType proportion = (v - start) / (end - start);
if (skew != static_cast<ValueType> (1))
proportion = pow (proportion, skew);
return proportion;
}
/** Uses the properties of this mapping to convert a normalised 0->1 value to
its full-range representation.
*/
ValueType convertFrom0to1 (ValueType proportion) const noexcept
{
if (skew != static_cast<ValueType> (1) && proportion > ValueType())
proportion = exp (log (proportion) / skew);
return start + (end - start) * proportion;
}
/** Takes a non-normalised value and snaps it based on the interval property of
this NormalisedRange. */
ValueType snapToLegalValue (ValueType v) const noexcept
{
if (interval > ValueType())
v = start + interval * std::floor ((v - start) / interval + static_cast<ValueType> (0.5));
if (v <= start || end <= start)
return start;
if (v >= end)
return end;
return v;
}
/** The start of the non-normalised range. */
ValueType start;
/** The end of the non-normalised range. */
ValueType end;
/** The snapping interval that should be used (in non-normalised value). Use 0 for a continuous range. */
ValueType interval;
/** An optional skew factor that alters the way values are distribute across the range.
The skew factor lets you skew the mapping logarithmically so that larger or smaller
values are given a larger proportion of the avilable space.
A factor of 1.0 has no skewing effect at all. If the factor is < 1.0, the lower end
of the range will fill more of the slider's length; if the factor is > 1.0, the upper
end of the range will be expanded.
*/
ValueType skew;
private:
void checkInvariants() const
{
jassert (end > start);
jassert (interval >= ValueType());
jassert (skew > ValueType());
}
};
#endif // JUCE_NORMALISABLERANGE_H_INCLUDED
JuceLibraryCode/modules/juce_core/system/juce_CompilerSupport.h
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/*
==============================================================================
This file is part of the juce_core module of the JUCE library.
Copyright (c) 2013 - Raw Material Software Ltd.
Permission to use, copy, modify, and/or distribute this software for any purpose with
or without fee is hereby granted, provided that the above copyright notice and this
permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
------------------------------------------------------------------------------
NOTE! This permissive ISC license applies ONLY to files within the juce_core module!
All other JUCE modules are covered by a dual GPL/commercial license, so if you are
using any other modules, be sure to check that you also comply with their license.
For more details, visit www.juce.com
==============================================================================
*/
#ifndef JUCE_COMPILERSUPPORT_H_INCLUDED
#define JUCE_COMPILERSUPPORT_H_INCLUDED
/* This file has some checks to see whether the compiler supports various C++11/14 features,
When these aren't available, the code defines a few workarounds, so that we can still use
some of the newer language features like nullptr and noexcept, even on old compilers.
*/
//==============================================================================
// GCC
#if (__cplusplus >= 201103L || defined (__GXX_EXPERIMENTAL_CXX0X__)) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
#define JUCE_COMPILER_SUPPORTS_NOEXCEPT 1
#define JUCE_COMPILER_SUPPORTS_NULLPTR 1
#define JUCE_COMPILER_SUPPORTS_MOVE_SEMANTICS 1
#if (__GNUC__ * 100 + __GNUC_MINOR__) >= 407 && ! defined (JUCE_COMPILER_SUPPORTS_OVERRIDE_AND_FINAL)
#define JUCE_COMPILER_SUPPORTS_OVERRIDE_AND_FINAL 1
#endif
#if (__GNUC__ * 100 + __GNUC_MINOR__) >= 407 && ! defined (JUCE_DELETED_FUNCTION)
#define JUCE_DELETED_FUNCTION = delete
#endif
#if (__GNUC__ * 100 + __GNUC_MINOR__) >= 406 && ! defined (JUCE_COMPILER_SUPPORTS_LAMBDAS)
#define JUCE_COMPILER_SUPPORTS_LAMBDAS 1
#endif
#endif
//==============================================================================
// Clang
#if JUCE_CLANG && defined (__has_feature)
#if __has_feature (cxx_nullptr)
#define JUCE_COMPILER_SUPPORTS_NULLPTR 1
#endif
#if __has_feature (cxx_noexcept)
#define JUCE_COMPILER_SUPPORTS_NOEXCEPT 1
#endif
#if __has_feature (cxx_rvalue_references)
#define JUCE_COMPILER_SUPPORTS_MOVE_SEMANTICS 1
#endif
#if __has_feature (cxx_deleted_functions)
#define JUCE_DELETED_FUNCTION = delete
#endif
#if __has_feature (cxx_lambdas) \
&& ((JUCE_MAC && defined (MAC_OS_X_VERSION_10_8) && MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_8) \
|| (JUCE_IOS && defined (__IPHONE_7_0) && __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_7_0) \
|| ! (JUCE_MAC || JUCE_IOS))
#define JUCE_COMPILER_SUPPORTS_LAMBDAS 1
#endif
#ifndef JUCE_COMPILER_SUPPORTS_OVERRIDE_AND_FINAL
#define JUCE_COMPILER_SUPPORTS_OVERRIDE_AND_FINAL 1
#endif
#ifndef JUCE_COMPILER_SUPPORTS_ARC
#define JUCE_COMPILER_SUPPORTS_ARC 1
#endif
#endif
//==============================================================================
// MSVC
#ifdef _MSC_VER
#if _MSC_VER >= 1600
#define JUCE_COMPILER_SUPPORTS_NULLPTR 1
#define JUCE_COMPILER_SUPPORTS_MOVE_SEMANTICS 1
#endif
#if _MSC_VER >= 1700
#define JUCE_COMPILER_SUPPORTS_OVERRIDE_AND_FINAL 1
#define JUCE_COMPILER_SUPPORTS_LAMBDAS 1
#endif
#if _MSC_VER >= 1900
#define JUCE_COMPILER_SUPPORTS_NOEXCEPT 1
#define JUCE_DELETED_FUNCTION = delete
#endif
#endif
//==============================================================================
// Declare some fake versions of nullptr and noexcept, for older compilers:
#ifndef JUCE_DELETED_FUNCTION
/** This macro can be placed after a method declaration to allow the use of
the C++11 feature "= delete" on all compilers.
On newer compilers that support it, it does the C++11 "= delete", but on
older ones it's just an empty definition.
*/
#define JUCE_DELETED_FUNCTION
#endif
#if ! DOXYGEN
#if ! JUCE_COMPILER_SUPPORTS_NOEXCEPT
#ifdef noexcept
#undef noexcept
#endif
#define noexcept throw()
#if defined (_MSC_VER) && _MSC_VER > 1600
#define _ALLOW_KEYWORD_MACROS 1 // (to stop VC2012 complaining)
#endif
#endif
#if ! JUCE_COMPILER_SUPPORTS_NULLPTR
#ifdef nullptr
#undef nullptr
#endif
#define nullptr (0)
#endif
#if ! JUCE_COMPILER_SUPPORTS_OVERRIDE_AND_FINAL
#undef override
#define override
#endif
#endif
#endif // JUCE_COMPILERSUPPORT_H_INCLUDED