juce_RelativeCoordinate.h

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/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2015 - ROLI Ltd.
 
   Permission is granted to use this software under the terms of either:
   a) the GPL v2 (or any later version)
   b) the Affero GPL v3
 
   Details of these licenses can be found at: www.gnu.org/licenses
 
   JUCE 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.
 
   ------------------------------------------------------------------------------
 
   To release a closed-source product which uses JUCE, commercial licenses are
   available: visit www.juce.com for more information.
 
  ==============================================================================
*/
 
#ifndef JUCE_RELATIVECOORDINATE_H_INCLUDED
#define JUCE_RELATIVECOORDINATE_H_INCLUDED
 
 
//==============================================================================
class JUCE_API  RelativeCoordinate
{
public:
    //==============================================================================
    RelativeCoordinate();
    RelativeCoordinate (const Expression& expression);
    RelativeCoordinate (const RelativeCoordinate&);
    RelativeCoordinate& operator= (const RelativeCoordinate&);
 
   #if JUCE_COMPILER_SUPPORTS_MOVE_SEMANTICS
    RelativeCoordinate (RelativeCoordinate&&) noexcept;
    RelativeCoordinate& operator= (RelativeCoordinate&&) noexcept;
   #endif
 
    RelativeCoordinate (double absoluteDistanceFromOrigin);
 
    RelativeCoordinate (const String& stringVersion);
 
    ~RelativeCoordinate();
 
    bool operator== (const RelativeCoordinate&) const noexcept;
    bool operator!= (const RelativeCoordinate&) const noexcept;
 
    //==============================================================================
    double resolve (const Expression::Scope* evaluationScope) const;
 
    bool references (const String& coordName, const Expression::Scope* evaluationScope) const;
 
    bool isRecursive (const Expression::Scope* evaluationScope) const;
 
    bool isDynamic() const;
 
    //==============================================================================
    void moveToAbsolute (double absoluteTargetPosition, const Expression::Scope* evaluationScope);
 
    const Expression& getExpression() const         { return term; }
 
 
    //==============================================================================
    String toString() const;
 
    //==============================================================================
    struct Strings
    {
        static const String parent;         
        static const String left;           
        static const String right;          
        static const String top;            
        static const String bottom;         
        static const String x;              
        static const String y;              
        static const String width;          
        static const String height;         
    };
 
    struct StandardStrings
    {
        enum Type
        {
            left, right, top, bottom,
            x, y, width, height,
            parent,
            unknown
        };
 
        static Type getTypeOf (const String& s) noexcept;
    };
 
private:
    //==============================================================================
    Expression term;
};
 
 
#endif   // JUCE_RELATIVECOORDINATE_H_INCLUDED