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* reuse-managed license/copyright headers reuse is a tool for compliance with the REUSE recommendations. See <https://reuse.software/> for more information, and <https://reuse.readthedocs.io/> for the online documentation. * Set jsoncpp license * Add MIT license for Decklink sources * Explicitly license examples/ - Add headers to source files - Change blanket licensing in .reuse/dep5 to only cover binary media - Import CC-BY-3.0 license and assign to sintel_trailer
118 lines
3.3 KiB
C++
118 lines
3.3 KiB
C++
/**
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* @file
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* @brief Source file for Point class
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* @author Jonathan Thomas <jonathan@openshot.org>
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*
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* @ref License
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*/
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// Copyright (c) 2008-2019 OpenShot Studios, LLC
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//
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// SPDX-License-Identifier: LGPL-3.0-or-later
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#include "Point.h"
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#include "Exceptions.h"
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using namespace std;
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using namespace openshot;
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// Default constructor
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Point::Point() : Point::Point(Coordinate(1, 0), BEZIER, AUTO) {}
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// Constructor which creates a single coordinate at X=1
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Point::Point(float y) : Point::Point(Coordinate(1, y), CONSTANT, AUTO) {}
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// Constructor which creates a Bezier curve with point at (x, y)
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Point::Point(float x, float y) : Point::Point(Coordinate(x, y), BEZIER, AUTO) {}
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// Constructor which also creates a Point, setting X,Y, and interpolation.
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Point::Point(float x, float y, InterpolationType interpolation)
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: Point::Point(Coordinate(x, y), interpolation, AUTO) {}
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// Direct Coordinate-accepting constructors
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Point::Point(const Coordinate& co) : Point::Point(co, BEZIER, AUTO) {}
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Point::Point(const Coordinate& co, InterpolationType interpolation)
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: Point::Point(co, interpolation, AUTO) {}
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Point::Point(const Coordinate& co, InterpolationType interpolation, HandleType handle_type) :
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co(co), interpolation(interpolation), handle_type(handle_type) {
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// set handles
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Initialize_Handles();
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}
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void Point::Initialize_Handles() {
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// initialize left and right handles (in percentages from 0 to 1)
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// default to a smooth curve
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Initialize_LeftHandle(0.5, 1.0);
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Initialize_RightHandle(0.5, 0.0);
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}
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void Point::Initialize_LeftHandle(float x, float y) {
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// initialize left handle (in percentages from 0 to 1)
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handle_left = Coordinate(x, y);
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}
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void Point::Initialize_RightHandle(float x, float y) {
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// initialize right handle (in percentages from 0 to 1)
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handle_right = Coordinate(x, y);
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}
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// Generate JSON string of this object
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std::string Point::Json() const {
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// Return formatted string
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return JsonValue().toStyledString();
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}
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// Generate Json::Value for this object
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Json::Value Point::JsonValue() const {
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// Create root json object
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Json::Value root;
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root["co"] = co.JsonValue();
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if (interpolation == BEZIER) {
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root["handle_left"] = handle_left.JsonValue();
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root["handle_right"] = handle_right.JsonValue();
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root["handle_type"] = handle_type;
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}
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root["interpolation"] = interpolation;
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// return JsonValue
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return root;
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}
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// Load JSON string into this object
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void Point::SetJson(const std::string value) {
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// Parse JSON string into JSON objects
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try
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{
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const Json::Value root = openshot::stringToJson(value);
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// Set all values that match
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SetJsonValue(root);
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}
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catch (const std::exception& e)
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{
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// Error parsing JSON (or missing keys)
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throw InvalidJSON("JSON is invalid (missing keys or invalid data types)");
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}
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}
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// Load Json::Value into this object
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void Point::SetJsonValue(const Json::Value root) {
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if (!root["co"].isNull())
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co.SetJsonValue(root["co"]); // update coordinate
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if (!root["handle_left"].isNull())
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handle_left.SetJsonValue(root["handle_left"]); // update coordinate
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if (!root["handle_right"].isNull())
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handle_right.SetJsonValue(root["handle_right"]); // update coordinate
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if (!root["interpolation"].isNull())
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interpolation = (InterpolationType) root["interpolation"].asInt();
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if (!root["handle_type"].isNull())
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handle_type = (HandleType) root["handle_type"].asInt();
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}
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