/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* This file is part of the libmspub project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include "ShapeGroupElement.h"
#include <algorithm>
#include "Coordinate.h"
#include "MSPUBConstants.h"
namespace libmspub
{
ShapeGroupElement::ShapeGroupElement(const std::shared_ptr<ShapeGroupElement> &parent, unsigned seqNum) : m_shapeInfo(), m_parent(parent), m_children(), m_seqNum(seqNum), m_transform()
{
}
ShapeGroupElement::~ShapeGroupElement()
{
}
std::shared_ptr<ShapeGroupElement> ShapeGroupElement::create(const std::shared_ptr<ShapeGroupElement> &parent, unsigned seqNum)
{
auto that = std::shared_ptr<ShapeGroupElement>(new ShapeGroupElement(parent, seqNum));
if (parent)
parent->m_children.push_back(that);
return that;
}
void ShapeGroupElement::setShapeInfo(const ShapeInfo &shapeInfo)
{
m_shapeInfo = shapeInfo;
}
void ShapeGroupElement::setTransform(const VectorTransformation2D &transform)
{
m_transform = transform;
}
void ShapeGroupElement::setup(std::function<void(ShapeGroupElement &self)> visitor)
{
visitor(*this);
for (auto &i : m_children)
{
i->setup(visitor);
}
}
void ShapeGroupElement::visit(std::function<
std::function<void(void)>
(const ShapeInfo &info, const Coordinate &relativeTo, const VectorTransformation2D &foldedTransform, bool isGroup, const VectorTransformation2D &thisTransform)
> visitor, const Coordinate &relativeTo, const VectorTransformation2D &parentFoldedTransform) const
{
const ShapeInfo info = m_shapeInfo.get_value_or(ShapeInfo());
Coordinate coord = info.m_coordinates.get_value_or(Coordinate());
double centerX = ((double)coord.m_xs + (double)coord.m_xe) / (2 * EMUS_IN_INCH);
double centerY = ((double)coord.m_ys + (double)coord.m_ye) / (2 * EMUS_IN_INCH);
double relativeCenterX = ((double)relativeTo.m_xs + (double)relativeTo.m_xe) / (2 * EMUS_IN_INCH);
double relativeCenterY = ((double)relativeTo.m_ys + (double)relativeTo.m_ye) / (2 * EMUS_IN_INCH);
double offsetX = centerX - relativeCenterX;
double offsetY = centerY - relativeCenterY;
VectorTransformation2D foldedTransform = VectorTransformation2D::fromTranslate(-offsetX, -offsetY)
* parentFoldedTransform * VectorTransformation2D::fromTranslate(offsetX, offsetY) * m_transform;
std::function<void(void)> afterOp = visitor(info, relativeTo, foldedTransform, isGroup(), m_transform);
for (const auto &i : m_children)
{
i->visit(visitor, coord, foldedTransform);
}
afterOp();
}
void ShapeGroupElement::visit(std::function<
std::function<void(void)>
(const ShapeInfo &info, const Coordinate &relativeTo, const VectorTransformation2D &foldedTransform, bool isGroup, const VectorTransformation2D &thisTransform)
> visitor) const
{
Coordinate origin;
VectorTransformation2D identity;
visit(visitor, origin, identity);
}
bool ShapeGroupElement::isGroup() const
{
return !m_children.empty();
}
std::shared_ptr<ShapeGroupElement> ShapeGroupElement::getParent() const
{
return m_parent.lock();
}
void ShapeGroupElement::setSeqNum(unsigned seqNum)
{
m_seqNum = seqNum;
}
unsigned ShapeGroupElement::getSeqNum() const
{
return m_seqNum;
}
}
/* vim:set shiftwidth=2 softtabstop=2 expandtab: */