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/*
* Copyright 2002-2017 Drew Noakes
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* More information about this project is available at:
*
* https://drewnoakes.com/code/exif/
* https://github.com/drewnoakes/metadata-extractor
*/
package com.drew.metadata.png;
import com.drew.imaging.png.PngChunkType;
import com.drew.lang.annotations.NotNull;
import com.drew.metadata.Directory;
import java.util.HashMap;
/**
* @author Drew Noakes https://drewnoakes.com
*/
@SuppressWarnings("WeakerAccess")
public class PngDirectory extends Directory
{
public static final int TAG_IMAGE_WIDTH = 1;
public static final int TAG_IMAGE_HEIGHT = 2;
public static final int TAG_BITS_PER_SAMPLE = 3;
public static final int TAG_COLOR_TYPE = 4;
public static final int TAG_COMPRESSION_TYPE = 5;
public static final int TAG_FILTER_METHOD = 6;
public static final int TAG_INTERLACE_METHOD = 7;
public static final int TAG_PALETTE_SIZE = 8;
public static final int TAG_PALETTE_HAS_TRANSPARENCY = 9;
public static final int TAG_SRGB_RENDERING_INTENT = 10;
public static final int TAG_GAMMA = 11;
public static final int TAG_ICC_PROFILE_NAME = 12;
public static final int TAG_TEXTUAL_DATA = 13;
public static final int TAG_LAST_MODIFICATION_TIME = 14;
public static final int TAG_BACKGROUND_COLOR = 15;
public static final int TAG_PIXELS_PER_UNIT_X = 16;
public static final int TAG_PIXELS_PER_UNIT_Y = 17;
public static final int TAG_UNIT_SPECIFIER = 18;
public static final int TAG_SIGNIFICANT_BITS = 19;
@NotNull
protected static final HashMap<Integer, String> _tagNameMap = new HashMap<Integer, String>();
static {
_tagNameMap.put(TAG_IMAGE_HEIGHT, "Image Height");
_tagNameMap.put(TAG_IMAGE_WIDTH, "Image Width");
_tagNameMap.put(TAG_BITS_PER_SAMPLE, "Bits Per Sample");
_tagNameMap.put(TAG_COLOR_TYPE, "Color Type");
_tagNameMap.put(TAG_COMPRESSION_TYPE, "Compression Type");
_tagNameMap.put(TAG_FILTER_METHOD, "Filter Method");
_tagNameMap.put(TAG_INTERLACE_METHOD, "Interlace Method");
_tagNameMap.put(TAG_PALETTE_SIZE, "Palette Size");
_tagNameMap.put(TAG_PALETTE_HAS_TRANSPARENCY, "Palette Has Transparency");
_tagNameMap.put(TAG_SRGB_RENDERING_INTENT, "sRGB Rendering Intent");
_tagNameMap.put(TAG_GAMMA, "Image Gamma");
_tagNameMap.put(TAG_ICC_PROFILE_NAME, "ICC Profile Name");
_tagNameMap.put(TAG_TEXTUAL_DATA, "Textual Data");
_tagNameMap.put(TAG_LAST_MODIFICATION_TIME, "Last Modification Time");
_tagNameMap.put(TAG_BACKGROUND_COLOR, "Background Color");
_tagNameMap.put(TAG_PIXELS_PER_UNIT_X, "Pixels Per Unit X");
_tagNameMap.put(TAG_PIXELS_PER_UNIT_Y, "Pixels Per Unit Y");
_tagNameMap.put(TAG_UNIT_SPECIFIER, "Unit Specifier");
_tagNameMap.put(TAG_SIGNIFICANT_BITS, "Significant Bits");
}
private final PngChunkType _pngChunkType;
public PngDirectory(@NotNull PngChunkType pngChunkType)
{
_pngChunkType = pngChunkType;
this.setDescriptor(new PngDescriptor(this));
}
@NotNull
public PngChunkType getPngChunkType()
{
return _pngChunkType;
}
@Override
@NotNull
public String getName()
{
return "PNG-" + _pngChunkType.getIdentifier();
}
@Override
@NotNull
protected HashMap<Integer, String> getTagNameMap()
{
return _tagNameMap;
}
}
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