package com.excelliance.open.gif;

import java.util.ArrayList;
import java.util.List;

/*
 * Copyright (c) 2013 Xcellent Creations, Inc.
 *
 * 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.
 */

class GifHeader {
    int[] gct = null;
    int status = GifDecoder.STATUS_OK;
    int frameCount = 0;

    GifFrame currentFrame;
    List<GifFrame> frames = new ArrayList<>();
    // Logical screen size.
    // Full image width.
    int width;
    // Full image height.
    int height;

    // 1 : global color table flag.
    boolean gctFlag;
    // 2-4 : color resolution.
    // 5 : gct sort flag.
    // 6-8 : gct size.
    int gctSize;
    // Background color index.
    int bgIndex;
    // Pixel aspect ratio.
    int pixelAspect;
    //TODO: this is set both during reading the header and while decoding frames...
    int bgColor;
    int loopCount = 0;

    public int getHeight() {
        return height;
    }

    public int getWidth() {
        return width;
    }

    public int getNumFrames() {
        return frameCount;
    }

    /**
     * Global status code of GIF data parsing.
     */
    public int getStatus() {
        return status;
    }
}
