JUCE/modules/juce_gui_basics/positioning/juce_RelativePoint.cpp

/*
  ==============================================================================

   This file is part of the JUCE library - "Jules' Utility Class Extensions"
   Copyright 2004-11 by Raw Material Software Ltd.

  ------------------------------------------------------------------------------

   JUCE can be redistributed and/or modified under the terms of the GNU General
   Public License (Version 2), as published by the Free Software Foundation.
   A copy of the license is included in the JUCE distribution, or can be found
   online 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.rawmaterialsoftware.com/juce for more information.

  ==============================================================================
*/

namespace RelativePointHelpers
{
    inline void skipComma (String::CharPointerType& s)
    {
        s = s.findEndOfWhitespace();

        if (*s == ',')
            ++s;
    }
}

//==============================================================================
RelativePoint::RelativePoint()
{
}

RelativePoint::RelativePoint (const Point<float>& absolutePoint)
    : x (absolutePoint.x), y (absolutePoint.y)
{
}

RelativePoint::RelativePoint (const float x_, const float y_)
    : x (x_), y (y_)
{
}

RelativePoint::RelativePoint (const RelativeCoordinate& x_, const RelativeCoordinate& y_)
    : x (x_), y (y_)
{
}

RelativePoint::RelativePoint (const String& s)
{
    String::CharPointerType text (s.getCharPointer());
    x = RelativeCoordinate (Expression::parse (text));
    RelativePointHelpers::skipComma (text);
    y = RelativeCoordinate (Expression::parse (text));
}

bool RelativePoint::operator== (const RelativePoint& other) const noexcept
{
    return x == other.x && y == other.y;
}

bool RelativePoint::operator!= (const RelativePoint& other) const noexcept
{
    return ! operator== (other);
}

const Point<float> RelativePoint::resolve (const Expression::Scope* scope) const
{
    return Point<float> ((float) x.resolve (scope),
                         (float) y.resolve (scope));
}

void RelativePoint::moveToAbsolute (const Point<float>& newPos, const Expression::Scope* scope)
{
    x.moveToAbsolute (newPos.x, scope);
    y.moveToAbsolute (newPos.y, scope);
}

String RelativePoint::toString() const
{
    return x.toString() + ", " + y.toString();
}

bool RelativePoint::isDynamic() const
{
    return x.isDynamic() || y.isDynamic();
}