libopenshot/src/Coordinate.cpp

/**
 * @file
 * @brief Source file for Coordinate class
 * @author Jonathan Thomas <jonathan@openshot.org>
 *
 * @section LICENSE
 *
 * Copyright (c) 2008-2013 OpenShot Studios, LLC
 * (http://www.openshotstudios.com). This file is part of
 * OpenShot Library (http://www.openshot.org), an open-source project
 * dedicated to delivering high quality video editing and animation solutions
 * to the world.
 *
 * OpenShot Library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenShot Library 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenShot Library.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "../include/Coordinate.h"

using namespace std;
using namespace openshot;

// Default constructor for a coordinate, which defaults the X and Y to zero (0,0)
Coordinate::Coordinate() :
	X(0), Y(0), increasing(true), repeated(1,1), delta(0.0) {
}

// Constructor which also allows the user to set the X and Y
Coordinate::Coordinate(float x, float y) :
	X(x), Y(y), increasing(true), repeated(1,1), delta(0.0)  {
}


// Generate JSON string of this object
string Coordinate::Json() {

	// Return formatted string
	return JsonValue().toStyledString();
}

// Generate Json::JsonValue for this object
Json::Value Coordinate::JsonValue() {

	// Create root json object
	Json::Value root;
	root["X"] = X;
	root["Y"] = Y;
	root["increasing"] = increasing;
	root["repeated"] = Json::Value(Json::objectValue);
	root["repeated"]["num"] = repeated.num;
	root["repeated"]["den"] = repeated.den;
	root["delta"] = delta;

	// return JsonValue
	return root;
}

// Load JSON string into this object
void Coordinate::Json(string value) throw(InvalidJSON) {

	// Parse JSON string into JSON objects
	Json::Value root;
	Json::Reader reader;
	bool success = reader.parse( value, root );
	if (!success)
		// Raise exception
		throw InvalidJSON("JSON could not be parsed (or is invalid)", "");

	try
	{
		// Set all values that match
		Json(root);
	}
	catch (exception e)
	{
		// Error parsing JSON (or missing keys)
		throw InvalidJSON("JSON is invalid (missing keys or invalid data types)", "");
	}
}

// Load Json::JsonValue into this object
void Coordinate::Json(Json::Value root) {

	// Set data from Json (if key is found)
	if (root["X"] != Json::nullValue)
		X = root["X"].asDouble();
	if (root["Y"] != Json::nullValue)
		Y = root["Y"].asDouble();
	if (root["increasing"] != Json::nullValue)
		increasing = root["increasing"].asBool();
	if (root["repeated"] != Json::nullValue)
	{
		repeated.num = root["repeated"]["num"].asInt();
		repeated.den = root["repeated"]["den"].asInt();
	}
	if (root["delta"] != Json::nullValue)
		delta = root["delta"].asDouble();
}