paysages3d/src/definition/IntNode.cpp

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#include "IntNode.h"
#include "PackStream.h"
#include "IntDiff.h"
#include "Logs.h"
#include <sstream>
#include <cassert>
IntNode::IntNode(DefinitionNode* parent, const std::string &name, int value):
DefinitionNode(parent, name, "int"), value(value)
{
}
std::string IntNode::toString(int indent) const
{
std::ostringstream stream;
stream << DefinitionNode::toString(indent) << " " << value;
return stream.str();
}
void IntNode::save(PackStream *stream) const
{
stream->write(&value);
}
void IntNode::load(PackStream *stream)
{
stream->read(&value);
}
void IntNode::copy(DefinitionNode *destination) const
{
if (destination->getTypeName() == getTypeName())
{
((IntNode *)destination)->value = value;
}
else
{
Logs::error() << "Can't copy from " << getTypeName() << " to " << destination->getTypeName() << std::endl;
}
}
void IntNode::setValue(int new_value)
{
addDiff(produceDiff(new_value));
}
const IntDiff *IntNode::produceDiff(int new_value) const
{
return new IntDiff(this, value, new_value);
}
void IntNode::generateInitDiffs(std::vector<const DefinitionDiff *> *diffs) const
{
diffs->push_back(produceDiff(value));
}
bool IntNode::applyDiff(const DefinitionDiff *diff, bool backward)
{
if (!DefinitionNode::applyDiff(diff, backward))
{
return false;
}
assert(diff->getTypeName() == "int");
const IntDiff *int_diff = (const IntDiff *)diff;
double previous = backward ? int_diff->getNewValue() : int_diff->getOldValue();
double next = backward ? int_diff->getOldValue() : int_diff->getNewValue();
if (value == previous)
{
value = next;
return true;
}
else
{
Logs::error() << "Can't apply int diff " << previous << " => " << next << " to " << getName() << std::endl;
return false;
}
}