/*
 * The MIT License
 *
 * Copyright 2013 Dra0211.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package kinugasa.contents.graphics;

import java.awt.RenderingHints;
import java.util.Collections;

/**
 * レンダリングの品質設定のセットを提供します.
 * <br>
 *
 * <br>
 *
 * @version 1.0.0 - 2013/01/12_21:26:49<br>
 * @author Dra0211<br>
 */
public enum RenderingPolicy {

	/**
	 * レンダリングヒントを全く設定しません.
	 * 全ての設定は規定値となります。<br>
	 */
	NOT_USE {
		@Override
		public RenderingHints getRenderingHints() {
			if (hints == null) {
				hints = new RenderingHints(Collections.<RenderingHints.Key, Object>emptyMap());
			}
			return hints;
		}
	},
	/**
	 * 速度を優先する設定です.
	 */
	SPEED {
		@Override
		public RenderingHints getRenderingHints() {
			if (hints == null) {
				hints = new RenderingHints(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_SPEED);
				hints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
				hints.put(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
				hints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
				hints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
				hints.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
			}
			return hints;
		}
	},
	/**
	 * 描画品質を優先する設定です.
	 */
	QUALITY {
		@Override
		public RenderingHints getRenderingHints() {
			if (hints == null) {
				hints = new RenderingHints(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
				hints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
				hints.put(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
				hints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
				hints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
				hints.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
			}
			return hints;
		}
	},
	/**
	 * 推奨設定です.特に設定しない場合の規定値となります.
	 */
	DEFAULT {
		@Override
		public RenderingHints getRenderingHints() {
			if (hints == null) {
				hints = new RenderingHints(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_DEFAULT);
				hints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_DEFAULT);
				hints.put(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
				hints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
				hints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
				hints.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
			}
			return hints;
		}
	};
	/**
	 * このRenderingHintsに品質が定義されます.
	 */
	protected RenderingHints hints = null;

	/**
	 * この列挙の表すレンダリング設定のプリセットを取得します.
	 *
	 * @return 適切な設定が追加されたRenderingHintsを返します。<br>
	 */
	public abstract RenderingHints getRenderingHints();
}
