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107 lines
3.5 KiB
107 lines
3.5 KiB
/*
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* Copyright (c) 2001, 2004, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package com.sun.imageio.plugins.gif;
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import java.util.Arrays;
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import javax.imageio.ImageTypeSpecifier;
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import javax.imageio.metadata.IIOMetadataFormat;
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import javax.imageio.metadata.IIOMetadataFormatImpl;
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public class GIFStreamMetadataFormat extends IIOMetadataFormatImpl {
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private static IIOMetadataFormat instance = null;
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private GIFStreamMetadataFormat() {
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super(GIFStreamMetadata.nativeMetadataFormatName,
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CHILD_POLICY_SOME);
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// root -> Version
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addElement("Version", GIFStreamMetadata.nativeMetadataFormatName,
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CHILD_POLICY_EMPTY);
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addAttribute("Version", "value",
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DATATYPE_STRING, true, null,
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Arrays.asList(GIFStreamMetadata.versionStrings));
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// root -> LogicalScreenDescriptor
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addElement("LogicalScreenDescriptor",
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GIFStreamMetadata.nativeMetadataFormatName,
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CHILD_POLICY_EMPTY);
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addAttribute("LogicalScreenDescriptor", "logicalScreenWidth",
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DATATYPE_INTEGER, true, null,
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"1", "65535", true, true);
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addAttribute("LogicalScreenDescriptor", "logicalScreenHeight",
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DATATYPE_INTEGER, true, null,
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"1", "65535", true, true);
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addAttribute("LogicalScreenDescriptor", "colorResolution",
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DATATYPE_INTEGER, true, null,
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"1", "8", true, true);
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addAttribute("LogicalScreenDescriptor", "pixelAspectRatio",
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DATATYPE_INTEGER, true, null,
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"0", "255", true, true);
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// root -> GlobalColorTable
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addElement("GlobalColorTable",
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GIFStreamMetadata.nativeMetadataFormatName,
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2, 256);
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addAttribute("GlobalColorTable", "sizeOfGlobalColorTable",
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DATATYPE_INTEGER, true, null,
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Arrays.asList(GIFStreamMetadata.colorTableSizes));
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addAttribute("GlobalColorTable", "backgroundColorIndex",
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DATATYPE_INTEGER, true, null,
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"0", "255", true, true);
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addBooleanAttribute("GlobalColorTable", "sortFlag",
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false, false);
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// root -> GlobalColorTable -> ColorTableEntry
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addElement("ColorTableEntry", "GlobalColorTable",
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CHILD_POLICY_EMPTY);
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addAttribute("ColorTableEntry", "index",
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DATATYPE_INTEGER, true, null,
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"0", "255", true, true);
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addAttribute("ColorTableEntry", "red",
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DATATYPE_INTEGER, true, null,
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"0", "255", true, true);
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addAttribute("ColorTableEntry", "green",
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DATATYPE_INTEGER, true, null,
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"0", "255", true, true);
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addAttribute("ColorTableEntry", "blue",
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DATATYPE_INTEGER, true, null,
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"0", "255", true, true);
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}
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public boolean canNodeAppear(String elementName,
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ImageTypeSpecifier imageType) {
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return true;
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}
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public static synchronized IIOMetadataFormat getInstance() {
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if (instance == null) {
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instance = new GIFStreamMetadataFormat();
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}
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return instance;
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}
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}
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