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103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
/**
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* @file
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* @brief Source file for Negate class
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* @author Jonathan Thomas <jonathan@openshot.org>
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*
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* @section LICENSE
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*
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* Copyright (c) 2008-2013 OpenShot Studios, LLC
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* (http://www.openshotstudios.com). This file is part of
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* OpenShot Library (http://www.openshot.org), an open-source project
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* dedicated to delivering high quality video editing and animation solutions
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* to the world.
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*
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* OpenShot Library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* OpenShot Library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "../include/effects/Negate.h"
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using namespace openshot;
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// Default constructor
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Negate::Negate()
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{
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/// Initialize the values of the EffectInfo struct.
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InitEffectInfo();
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/// Set the effect info
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info.name = "Negative";
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info.description = "Negates the colors, producing a negative of the image.";
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info.has_audio = false;
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info.has_video = true;
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}
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// This method is required for all derived classes of EffectBase, and returns a
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// modified openshot::Frame object
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tr1::shared_ptr<Frame> Negate::GetFrame(tr1::shared_ptr<Frame> frame, int frame_number)
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{
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// Make this range of colors transparent
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frame->GetImage()->negate();
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// return the modified frame
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return frame;
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}
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// Generate JSON string of this object
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string Negate::Json() {
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// Return formatted string
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return JsonValue().toStyledString();
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}
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// Generate Json::JsonValue for this object
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Json::Value Negate::JsonValue() {
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// Create root json object
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Json::Value root = EffectBase::JsonValue(); // get parent properties
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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 Negate::SetJson(string value) throw(InvalidJSON) {
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// Parse JSON string into JSON objects
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Json::Value root;
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Json::Reader reader;
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bool success = reader.parse( value, root );
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if (!success)
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// Raise exception
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throw InvalidJSON("JSON could not be parsed (or is invalid)", "");
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try
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{
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// Set all values that match
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SetJsonValue(root);
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}
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catch (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::JsonValue into this object
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void Negate::SetJsonValue(Json::Value root) {
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// Set parent data
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EffectBase::SetJsonValue(root);
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}
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