/*
* Copyright 2015 Laszlo Balazs-Csiki
*
* This file is part of Pixelitor. Pixelitor is free software: you
* can redistribute it and/or modify it under the terms of the GNU
* General Public License, version 3 as published by the Free
* Software Foundation.
*
* Pixelitor 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 Pixelitor. If not, see <http://www.gnu.org/licenses/>.
*/
package pixelitor.filters.gui;
/**
* Captures the state of a filter parameter at a given moment
* (like the "Memento" design pattern)
*/
public interface ParamState {
/**
* Calculate a new interpolated ParamState object, where the current object
* represents the starting state and the given argument represents the end state
*/
ParamState interpolate(ParamState endState, double progress);
}