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