X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fevoral%2Fevoral%2FParameter.hpp;h=2164475cf9635f34e73567b08031f4fb94a5815a;hb=2a7ed69c28c5c4606ff13b3605b9bc9c3eba607d;hp=0f6d5afc4bc4b17779a6c5b88ea06f9e67deef14;hpb=33852a0728d081864b83e74e900802be7ab6f2aa;p=ardour.git diff --git a/libs/evoral/evoral/Parameter.hpp b/libs/evoral/evoral/Parameter.hpp index 0f6d5afc4b..2164475cf9 100644 --- a/libs/evoral/evoral/Parameter.hpp +++ b/libs/evoral/evoral/Parameter.hpp @@ -1,16 +1,16 @@ /* This file is part of Evoral. - * Copyright (C) 2008 Dave Robillard + * Copyright (C) 2008 David Robillard * Copyright (C) 2000-2008 Paul Davis - * + * * Evoral 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. - * + * * Evoral 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 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., * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA @@ -21,9 +21,10 @@ #include #include +#include #include -#include -#include + +#include "evoral/visibility.h" namespace Evoral { @@ -37,15 +38,15 @@ namespace Evoral { * This class defines a < operator which is a strict weak ordering, so * Parameter may be stored in a std::set, used as a std::map key, etc. */ -class Parameter +class LIBEVORAL_API Parameter { public: Parameter(uint32_t type, uint8_t channel=0, uint32_t id=0) : _type(type), _id(id), _channel(channel) {} - + virtual ~Parameter() {} - + inline uint32_t type() const { return _type; } inline uint8_t channel() const { return _channel; } inline uint32_t id() const { return _id; } @@ -58,36 +59,10 @@ public: inline bool operator==(const Parameter& id) const { return (_type == id._type && _channel == id._channel && _id == id._id ); } - + /** Strict weak ordering * See: http://www.sgi.com/tech/stl/StrictWeakOrdering.html - * Sort Parameters first according to type then to id and lastly to channel. - * - * Proof: - *
    - *
  1. Irreflexivity: f(x, x) is false because of the irreflexivity of \c < in each branch.
  2. - *
  3. Antisymmetry: given x != y, f(x, y) implies !f(y, x) because of the same - * property of \c < in each branch and the symmetry of operator==.
  4. - *
  5. Transitivity: let f(x, y) and f(y, z) => f(x, z) be true. - * We prove by contradiction, assuming the contrary: - * f(x, y) and f(x, z) hold => !f(x, z) - * - * That implies one of the following: - *
      - *
    1. x == z which contradicts the assumption f(x, y) and f(y, x) - * because of antisymmetry. - *
    2. - *
    3. f(z, x) is true. That would imply that one of the ivars (we call it i) - * of x is greater than the same ivar in z while all "previous" ivars - * are equal. That would imply that also in y all those "previous" - * ivars are equal and because if x.i > z.i it is impossible - * that there is an y that satisfies x.i < y.i < z.i at the same - * time which contradicts the assumption. - *
    4. - * Therefore f(x, z) is true (transitivity) - *
    - *
  6. - *
+ * Sort Parameters first according to type then to channel and lastly to ID. */ inline bool operator<(const Parameter& other) const { if (_type < other._type) { @@ -97,28 +72,29 @@ public: } else if (_type == other._type && _channel == other._channel && _id < other._id ) { return true; } - + return false; } - + inline operator bool() const { return (_type != 0); } - + /** Not used in indentity/comparison */ struct Metadata { - Metadata(double low=0.0, double high=1.0, double mid=0.0) - : min(low), max(high), normal(mid) + Metadata(double low=0.0, double high=1.0, double mid=0.0, bool tog=false) + : min(low), max(high), normal(mid), toggled(tog) {} double min; double max; double normal; + bool toggled; }; - - inline static void set_range(uint32_t type, double min, double max, double normal) { - _type_metadata[type] = Metadata(min, max, normal); + + inline static void set_range(uint32_t type, double min, double max, double normal, bool toggled) { + _type_metadata[type] = Metadata(min, max, normal, toggled); } - - inline void set_range(double min, double max, double normal) { - _metadata = boost::shared_ptr(new Metadata(min, max, normal)); + + inline void set_range(double min, double max, double normal, bool toggled) { + _metadata = boost::shared_ptr(new Metadata(min, max, normal, toggled)); } inline Metadata& metadata() const { @@ -128,18 +104,19 @@ public: return _type_metadata[_type]; } - inline double min() const { return metadata().min; } - inline double max() const { return metadata().max; } - inline double normal() const { return metadata().normal; } + inline double min() const { return metadata().min; } + inline double max() const { return metadata().max; } + inline double normal() const { return metadata().normal; } + inline double toggled() const { return metadata().toggled; } protected: // Default copy constructor is ok - + // ID (used in comparison) uint32_t _type; uint32_t _id; uint8_t _channel; - + boost::shared_ptr _metadata; typedef std::map TypeMetadata;