下面列出了怎么用javax.imageio.metadata.IIOMetadataNode的API类实例代码及写法，或者点击链接到github查看源代码。
public static void test1() {
IIOMetadataNode parent = new IIOMetadataNode("parent");
IIOMetadataNode elem = new IIOMetadataNode("elem");
MyAttrNode attrNode = new MyAttrNode("name", "value");
elem.setAttributeNode(attrNode);
attrNode.setOwnerElement(elem);
try {
parent.setAttributeNode(attrNode);
} catch (DOMException e) {
if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
throw new RuntimeException("Test 1 failed: " +
"Invalid exception code: " +
e.code);
}
return;
}
throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
public static void test1() {
IIOMetadataNode parent = new IIOMetadataNode("parent");
IIOMetadataNode elem = new IIOMetadataNode("elem");
MyAttrNode attrNode = new MyAttrNode("name", "value");
elem.setAttributeNode(attrNode);
attrNode.setOwnerElement(elem);
try {
parent.setAttributeNode(attrNode);
} catch (DOMException e) {
if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
throw new RuntimeException("Test 1 failed: " +
"Invalid exception code: " +
e.code);
}
return;
}
throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
/** Creates an <code>IIOMetadataNode</code> from this
* box. The format of this node is defined in the XML dtd and xsd
* for the JP2 image file.
*
* This method is designed for the types of boxes whose XML tree
* only has 2 levels.
*/
protected IIOMetadataNode getNativeNodeForSimpleBox() {
try {
Method m = this.getClass().getMethod("getElementNames",
(Class[])null);
String[] elementNames = (String[])m.invoke(null, (Object[])null);
IIOMetadataNode node = new IIOMetadataNode(Box.getName(getType()));
setDefaultAttributes(node);
for (int i = 0; i < elementNames.length; i++) {
IIOMetadataNode child = new IIOMetadataNode(elementNames[i]);
m = this.getClass().getMethod("get" + elementNames[i],
(Class[])null);
Object obj = m.invoke(this, (Object[])null);
child.setUserObject(obj);
child.setNodeValue(ImageUtil.convertObjectToString(obj));
node.appendChild(child);
}
return node;
} catch (Exception e) {
throw new IllegalArgumentException(I18N.getString("Box0"));
}
}
private static ITXtTest readFrom(File f) {
try (ImageInputStream imageInputStream =
ImageIO.createImageInputStream(f)) {
ImageReader r = ImageIO.getImageReaders(imageInputStream).next();
r.setInput(imageInputStream);
IIOImage dst = r.readAll(0, null);
// look for iTXt node
IIOMetadata m = dst.getMetadata();
Node root = m.getAsTree(m.getNativeMetadataFormatName());
Node n = root.getFirstChild();
while (n != null && !"iTXt".equals(n.getNodeName())) {
n = n.getNextSibling();
}
if (n == null) {
throw new RuntimeException("No iTXt node!");
}
ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
return t;
} catch (Throwable e) {
throw new RuntimeException("Reading test failed.", e);
}
}
/**
* Returns a tree of DOM nodes representing this object and any
* subordinate JFXX extension or ICC Profile segments.
*/
IIOMetadataNode getNativeNode() {
IIOMetadataNode node = new IIOMetadataNode("app0JFIF");
node.setAttribute("majorVersion", Integer.toString(majorVersion));
node.setAttribute("minorVersion", Integer.toString(minorVersion));
node.setAttribute("resUnits", Integer.toString(resUnits));
node.setAttribute("Xdensity", Integer.toString(Xdensity));
node.setAttribute("Ydensity", Integer.toString(Ydensity));
node.setAttribute("thumbWidth", Integer.toString(thumbWidth));
node.setAttribute("thumbHeight", Integer.toString(thumbHeight));
if (!extSegments.isEmpty()) {
IIOMetadataNode JFXXnode = new IIOMetadataNode("JFXX");
node.appendChild(JFXXnode);
for (Iterator iter = extSegments.iterator(); iter.hasNext();) {
JFIFExtensionMarkerSegment seg =
(JFIFExtensionMarkerSegment) iter.next();
JFXXnode.appendChild(seg.getNativeNode());
}
}
if (iccSegment != null) {
node.appendChild(iccSegment.getNativeNode());
}
return node;
}
public static void test1() {
IIOMetadataNode parent = new IIOMetadataNode("parent");
IIOMetadataNode elem = new IIOMetadataNode("elem");
MyAttrNode attrNode = new MyAttrNode("name", "value");
elem.setAttributeNode(attrNode);
attrNode.setOwnerElement(elem);
try {
parent.setAttributeNode(attrNode);
} catch (DOMException e) {
if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
throw new RuntimeException("Test 1 failed: " +
"Invalid exception code: " +
e.code);
}
return;
}
throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
public static IIOMetadata getWriterMeta(ImageAttributes attributes, BufferedImage image,
ImageWriter writer, ImageWriteParam param) {
try {
BMPMetadata metaData = (BMPMetadata) writer.getDefaultImageMetadata(new ImageTypeSpecifier(image), param);
if (metaData != null && !metaData.isReadOnly() && attributes != null && attributes.getDensity() > 0) {
String format = metaData.getNativeMetadataFormatName(); // "com_sun_media_imageio_plugins_bmp_image_1.0"
int dpm = dpi2dpm(attributes.getDensity());
// If set nodes' attributes in normal way, error will be popped about "Meta Data is read only"
// By setting its fields, the class will write resolution data under standard format "javax_imageio_1.0"
// but leave itself's section as empty~ Anyway, the data is record.
metaData.xPixelsPerMeter = dpm;
metaData.yPixelsPerMeter = dpm;
metaData.palette = null; // Error will happen if not define this for Black-white bmp.
IIOMetadataNode tree = (IIOMetadataNode) metaData.getAsTree(format);
metaData.mergeTree(format, tree);
}
return metaData;
} catch (Exception e) {
logger.error(e.toString());
return null;
}
}
protected IIOMetadataNode getStandardChromaNode() {
if ((palette != null) && (paletteSize > 0)) {
IIOMetadataNode node = new IIOMetadataNode("Chroma");
IIOMetadataNode subNode = new IIOMetadataNode("Palette");
int numComps = palette.length / paletteSize;
subNode.setAttribute("value", "" + numComps);
for (int i = 0, j = 0; i < paletteSize; i++) {
IIOMetadataNode subNode1 = new IIOMetadataNode("PaletteEntry");
subNode1.setAttribute("index", ""+i);
subNode1.setAttribute("red", "" + palette[j++]);
subNode1.setAttribute("green", "" + palette[j++]);
subNode1.setAttribute("blue", "" + palette[j++]);
if (numComps == 4 && palette[j] != 0)
subNode1.setAttribute("alpha", "" + palette[j++]);
subNode.appendChild(subNode1);
}
node.appendChild(subNode);
return node;
}
return null;
}
public static void test1() {
IIOMetadataNode parent = new IIOMetadataNode("parent");
IIOMetadataNode elem = new IIOMetadataNode("elem");
MyAttrNode attrNode = new MyAttrNode("name", "value");
elem.setAttributeNode(attrNode);
attrNode.setOwnerElement(elem);
try {
parent.setAttributeNode(attrNode);
} catch (DOMException e) {
if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
throw new RuntimeException("Test 1 failed: " +
"Invalid exception code: " +
e.code);
}
return;
}
throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
private IIOMetadataNode gethISTNode(BufferedImage bi) {
IndexColorModel icm = (IndexColorModel)bi.getColorModel();
int mapSize = icm.getMapSize();
int[] hist = new int[mapSize];
Arrays.fill(hist, 0);
Raster r = bi.getData();
for (int y = 0; y < bi.getHeight(); y++) {
for (int x = 0; x < bi.getWidth(); x++) {
int s = r.getSample(x, y, 0);
hist[s] ++;
}
}
IIOMetadataNode hIST = new IIOMetadataNode("hIST");
for (int i = 0; i < hist.length; i++) {
IIOMetadataNode n = new IIOMetadataNode("hISTEntry");
n.setAttribute("index", "" + i);
n.setAttribute("value", "" + hist[i]);
hIST.appendChild(n);
}
return hIST;
}
/**
* Returns a tree of DOM nodes representing this object and any
* subordinate JFXX extension or ICC Profile segments.
*/
IIOMetadataNode getNativeNode() {
IIOMetadataNode node = new IIOMetadataNode("app0JFIF");
node.setAttribute("majorVersion", Integer.toString(majorVersion));
node.setAttribute("minorVersion", Integer.toString(minorVersion));
node.setAttribute("resUnits", Integer.toString(resUnits));
node.setAttribute("Xdensity", Integer.toString(Xdensity));
node.setAttribute("Ydensity", Integer.toString(Ydensity));
node.setAttribute("thumbWidth", Integer.toString(thumbWidth));
node.setAttribute("thumbHeight", Integer.toString(thumbHeight));
if (!extSegments.isEmpty()) {
IIOMetadataNode JFXXnode = new IIOMetadataNode("JFXX");
node.appendChild(JFXXnode);
for (Iterator iter = extSegments.iterator(); iter.hasNext();) {
JFIFExtensionMarkerSegment seg =
(JFIFExtensionMarkerSegment) iter.next();
JFXXnode.appendChild(seg.getNativeNode());
}
}
if (iccSegment != null) {
node.appendChild(iccSegment.getNativeNode());
}
return node;
}
private static ITXtTest readFrom(File f) {
try {
ImageInputStream iis = ImageIO.createImageInputStream(f);
ImageReader r = ImageIO.getImageReaders(iis).next();
r.setInput(iis);
IIOImage dst = r.readAll(0, null);
// look for iTXt node
IIOMetadata m = dst.getMetadata();
Node root = m.getAsTree(m.getNativeMetadataFormatName());
Node n = root.getFirstChild();
while (n != null && !"iTXt".equals(n.getNodeName())) {
n = n.getNextSibling();
}
if (n == null) {
throw new RuntimeException("No iTXt node!");
}
ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
return t;
} catch (Throwable e) {
throw new RuntimeException("Reading test failed.", e);
}
}
private static ITXtTest readFrom(File f) {
try {
ImageInputStream iis = ImageIO.createImageInputStream(f);
ImageReader r = ImageIO.getImageReaders(iis).next();
r.setInput(iis);
IIOImage dst = r.readAll(0, null);
// look for iTXt node
IIOMetadata m = dst.getMetadata();
Node root = m.getAsTree(m.getNativeMetadataFormatName());
Node n = root.getFirstChild();
while (n != null && !"iTXt".equals(n.getNodeName())) {
n = n.getNextSibling();
}
if (n == null) {
throw new RuntimeException("No iTXt node!");
}
ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
return t;
} catch (Throwable e) {
throw new RuntimeException("Reading test failed.", e);
}
}
public static void test1() {
IIOMetadataNode parent = new IIOMetadataNode("parent");
IIOMetadataNode elem = new IIOMetadataNode("elem");
MyAttrNode attrNode = new MyAttrNode("name", "value");
elem.setAttributeNode(attrNode);
attrNode.setOwnerElement(elem);
try {
parent.setAttributeNode(attrNode);
} catch (DOMException e) {
if (e.code != DOMException.INUSE_ATTRIBUTE_ERR) {
throw new RuntimeException("Test 1 failed: " +
"Invalid exception code: " +
e.code);
}
return;
}
throw new RuntimeException("Test 1 failed: DOMException not thrown");
}
protected IIOMetadataNode getStandardChromaNode() {
if ((palette != null) && (paletteSize > 0)) {
IIOMetadataNode node = new IIOMetadataNode("Chroma");
IIOMetadataNode subNode = new IIOMetadataNode("Palette");
int numComps = palette.length / paletteSize;
subNode.setAttribute("value", "" + numComps);
for (int i = 0, j = 0; i < paletteSize; i++) {
IIOMetadataNode subNode1 = new IIOMetadataNode("PaletteEntry");
subNode1.setAttribute("index", ""+i);
subNode1.setAttribute("red", "" + palette[j++]);
subNode1.setAttribute("green", "" + palette[j++]);
subNode1.setAttribute("blue", "" + palette[j++]);
if (numComps == 4 && palette[j] != 0)
subNode1.setAttribute("alpha", "" + palette[j++]);
subNode.appendChild(subNode1);
}
node.appendChild(subNode);
return node;
}
return null;
}
private IIOMetadataNode gethISTNode(BufferedImage bi) {
IndexColorModel icm = (IndexColorModel)bi.getColorModel();
int mapSize = icm.getMapSize();
int[] hist = new int[mapSize];
Arrays.fill(hist, 0);
Raster r = bi.getData();
for (int y = 0; y < bi.getHeight(); y++) {
for (int x = 0; x < bi.getWidth(); x++) {
int s = r.getSample(x, y, 0);
hist[s] ++;
}
}
IIOMetadataNode hIST = new IIOMetadataNode("hIST");
for (int i = 0; i < hist.length; i++) {
IIOMetadataNode n = new IIOMetadataNode("hISTEntry");
n.setAttribute("index", "" + i);
n.setAttribute("value", "" + hist[i]);
hIST.appendChild(n);
}
return hIST;
}
protected IIOMetadataNode getStandardDataNode() {
IIOMetadataNode node = new IIOMetadataNode("Data");
String bits = "";
if (bitsPerPixel == 24)
bits = "8 8 8 ";
else if (bitsPerPixel == 16 || bitsPerPixel == 32) {
bits = "" + countBits(redMask) + " " + countBits(greenMask) +
countBits(blueMask) + "" + countBits(alphaMask);
}
IIOMetadataNode subNode = new IIOMetadataNode("BitsPerSample");
subNode.setAttribute("value", bits);
node.appendChild(subNode);
return node;
}
private static ITXtTest readFrom(File f) {
try {
ImageInputStream iis = ImageIO.createImageInputStream(f);
ImageReader r = ImageIO.getImageReaders(iis).next();
r.setInput(iis);
IIOImage dst = r.readAll(0, null);
// look for iTXt node
IIOMetadata m = dst.getMetadata();
Node root = m.getAsTree(m.getNativeMetadataFormatName());
Node n = root.getFirstChild();
while (n != null && !"iTXt".equals(n.getNodeName())) {
n = n.getNextSibling();
}
if (n == null) {
throw new RuntimeException("No iTXt node!");
}
ITXtTest t = ITXtTest.getFromNode((IIOMetadataNode)n);
return t;
} catch (Throwable e) {
throw new RuntimeException("Reading test failed.", e);
}
}
IIOMetadataNode getNativeNode() {
IIOMetadataNode node = new IIOMetadataNode("scanComponentSpec");
node.setAttribute("componentSelector",
Integer.toString(componentSelector));
node.setAttribute("dcHuffTable",
Integer.toString(dcHuffTable));
node.setAttribute("acHuffTable",
Integer.toString(acHuffTable));
return node;
}
IIOMetadataNode getNativeNode() {
IIOMetadataNode node = new IIOMetadataNode("dqtable");
node.setAttribute("elementPrecision",
Integer.toString(elementPrecision));
node.setAttribute("qtableId",
Integer.toString(tableID));
node.setUserObject(new JPEGQTable(data));
return node;
}
Htable(Node node) throws IIOInvalidTreeException {
if (node.getNodeName().equals("dhtable")) {
NamedNodeMap attrs = node.getAttributes();
int count = attrs.getLength();
if (count != 2) {
throw new IIOInvalidTreeException
("dhtable node must have 2 attributes", node);
}
tableClass = getAttributeValue(node, attrs, "class", 0, 1, true);
tableID = getAttributeValue(node, attrs, "htableId", 0, 3, true);
if (node instanceof IIOMetadataNode) {
IIOMetadataNode ourNode = (IIOMetadataNode) node;
JPEGHuffmanTable table =
(JPEGHuffmanTable) ourNode.getUserObject();
if (table == null) {
throw new IIOInvalidTreeException
("dhtable node must have user object", node);
}
numCodes = table.getLengths();
values = table.getValues();
} else {
throw new IIOInvalidTreeException
("dhtable node must have user object", node);
}
} else {
throw new IIOInvalidTreeException
("Invalid node, expected dqtable", node);
}
}
IIOMetadataNode getNativeNode() {
IIOMetadataNode node = new IIOMetadataNode("dhtable");
node.setAttribute("class", Integer.toString(tableClass));
node.setAttribute("htableId", Integer.toString(tableID));
node.setUserObject(new JPEGHuffmanTable(numCodes, values));
return node;
}
Qtable(Node node) throws IIOInvalidTreeException {
if (node.getNodeName().equals("dqtable")) {
NamedNodeMap attrs = node.getAttributes();
int count = attrs.getLength();
if ((count < 1) || (count > 2)) {
throw new IIOInvalidTreeException
("dqtable node must have 1 or 2 attributes", node);
}
elementPrecision = 0;
tableID = getAttributeValue(node, attrs, "qtableId", 0, 3, true);
if (node instanceof IIOMetadataNode) {
IIOMetadataNode ourNode = (IIOMetadataNode) node;
JPEGQTable table = (JPEGQTable) ourNode.getUserObject();
if (table == null) {
throw new IIOInvalidTreeException
("dqtable node must have user object", node);
}
data = table.getTable();
} else {
throw new IIOInvalidTreeException
("dqtable node must have user object", node);
}
} else {
throw new IIOInvalidTreeException
("Invalid node, expected dqtable", node);
}
}
IIOMetadataNode getNativeNode() {
IIOMetadataNode node = new IIOMetadataNode("unknown");
node.setAttribute("MarkerTag", Integer.toString(tag));
node.setUserObject(data);
return node;
}
IIOMetadataNode getNativeNode() {
IIOMetadataNode node = new IIOMetadataNode("app14Adobe");
node.setAttribute("version", Integer.toString(version));
node.setAttribute("flags0", Integer.toString(flags0));
node.setAttribute("flags1", Integer.toString(flags1));
node.setAttribute("transform", Integer.toString(transform));
return node;
}
public File saveToFile(File captureFile) throws FileNotFoundException, IOException {
writePNG(captureFile);
ImageReader reader = getPNGImageReader();
ImageInputStream iis = ImageIO.createImageInputStream(new FileInputStream(captureFile));
reader.setInput(iis);
BufferedImage pngImage = reader.read(0);
IIOMetadata imageMetadata = reader.getImageMetadata(0);
Node root = imageMetadata.getAsTree(imageMetadata.getNativeMetadataFormatName());
IIOMetadataNode textNode = new IIOMetadataNode("tEXt");
ArrayList<Annotation> annotations = imagePanel.getAnnotations();
for (int i = 0; i < annotations.size(); i++) {
textNode.appendChild(getAnnotationNode((Annotation) annotations.get(i), i));
}
root.appendChild(textNode);
imageMetadata.mergeTree(imageMetadata.getNativeMetadataFormatName(), root);
IIOImage imageWrite = new IIOImage(pngImage, new ArrayList<BufferedImage>(), imageMetadata);
ImageWriter writer = getPNGImageWriter();
ImageOutputStream ios = ImageIO.createImageOutputStream(new FileOutputStream(captureFile));
writer.setOutput(ios);
writer.write(imageWrite);
writer.dispose();
JFrame frame = new JFrame();
frame.setLayout(new BorderLayout());
ImagePanel finalImage = new ImagePanel(new FileInputStream(captureFile), false);
frame.add(finalImage, BorderLayout.CENTER);
frame.pack();
File savedFile = new File(captureFile.getParentFile(), "ext-" + captureFile.getName());
getScreenShot(frame.getContentPane(), savedFile);
frame.dispose();
return savedFile;
}
private IIOMetadataNode addChildNode(IIOMetadataNode root,
String name,
Object object) {
IIOMetadataNode child = new IIOMetadataNode(name);
if (object != null) {
child.setUserObject(object);
child.setNodeValue(ImageUtil.convertObjectToString(object));
}
root.appendChild(child);
return child;
}
protected IIOMetadataNode getStandardChromaNode() {
IIOMetadataNode node = new IIOMetadataNode("Chroma");
IIOMetadataNode subNode = new IIOMetadataNode("BlackIsZero");
subNode.setAttribute("value", "TRUE");
node.appendChild(subNode);
return node;
}
/** Creates an <code>IIOMetadataNode</code> from this
* box. The format of this node is defined in the XML dtd and xsd
* for the JP2 image file.
*/
public IIOMetadataNode getNativeNode() {
String name = Box.getName(getType());
if (name == null)
name = "unknown";
IIOMetadataNode node = new IIOMetadataNode(name);
setDefaultAttributes(node);
IIOMetadataNode child = new IIOMetadataNode("Content");
child.setUserObject(data);
child.setNodeValue(ImageUtil.convertObjectToString(data));
node.appendChild(child);
return node;
}
IIOMetadataNode getNativeNode() {
IIOMetadataNode node = new IIOMetadataNode("componentSpec");
node.setAttribute("componentId",
Integer.toString(componentId));
node.setAttribute("HsamplingFactor",
Integer.toString(HsamplingFactor));
node.setAttribute("VsamplingFactor",
Integer.toString(VsamplingFactor));
node.setAttribute("QtableSelector",
Integer.toString(QtableSelector));
return node;
}