Examples of javax.imageio.metadata.IIOMetadataNode

javax.imageio.metadata.IIOMetadataNode
A class representing a node in a meta-data tree, which implements the org.w3c.dom.Element interface and additionally allows for the storage of non-textual objects via the getUserObject and setUserObject methods.
This class is not intended to be used for general XML processing. In particular, Element nodes created within the Image I/O API are not compatible with those created by Sun's standard implementation of the org.w3.dom API. In particular, the implementation is tuned for simple uses and may not perform well for intensive processing.
Namespaces are ignored in this implementation. The terms "tag name" and "node name" are always considered to be synonymous. Note: The DOM Level 3 specification added a number of new methods to the {@code Node}, {@code Element} and {@code Attr} interfaces that are notof value to the {@code IIOMetadataNode} implementation or specification.Calling such methods on an {@code IIOMetadataNode}, or an {@code Attr}instance returned from an {@code IIOMetadataNode} will result in a{@code DOMException} being thrown. @see IIOMetadata#getAsTree @see IIOMetadata#setFromTree @see IIOMetadata#mergeTree

            }
            return newGuy;
        }


        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;
        }

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        return null;
    }


    protected IIOMetadataNode getStandardCompressionNode() {
        IIOMetadataNode node = new IIOMetadataNode("Compression");


        // CompressionTypeName
        IIOMetadataNode subNode = new IIOMetadataNode("CompressionTypeName");
        subNode.setAttribute("value", BMPCompressionTypes.getName(compression));
        node.appendChild(subNode);
        return node;
    }

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                String textString =
                    getStringAttribute(node, "text", "", false, null);
                text = fromISO8859(textString);
            } else if (name.equals("ApplicationExtensions")) {
                IIOMetadataNode applicationExtension =
                    (IIOMetadataNode)node.getFirstChild();


                if (!applicationExtension.getNodeName().equals("ApplicationExtension")) {
                    fatal(node,
                          "Only a ApplicationExtension may be a child of a ApplicationExtensions!");
                }


                String applicationIDString =
                    getStringAttribute(applicationExtension, "applicationID",
                                       null, true, null);


                String authenticationCodeString =
                    getStringAttribute(applicationExtension, "authenticationCode",
                                       null, true, null);


                Object applicationExtensionData =
                    applicationExtension.getUserObject();
                if (applicationExtensionData == null ||
                    !(applicationExtensionData instanceof byte[])) {
                    fatal(applicationExtension,
                          "Bad user object in ApplicationExtension!");
                }

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        node.appendChild(subNode);
        return node;
    }


    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;
    }

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        return node;
    }


    protected IIOMetadataNode getStandardDimensionNode() {
        if (yPixelsPerMeter > 0.0F && xPixelsPerMeter > 0.0F) {
            IIOMetadataNode node = new IIOMetadataNode("Dimension");
            float ratio = yPixelsPerMeter / xPixelsPerMeter;
            IIOMetadataNode subNode = new IIOMetadataNode("PixelAspectRatio");
            subNode.setAttribute("value", "" + ratio);
            node.appendChild(subNode);


            subNode = new IIOMetadataNode("HorizontalPhysicalPixelSpacing");
            subNode.setAttribute("value", "" + (1 / xPixelsPerMeter * 1000));
            node.appendChild(subNode);


            subNode = new IIOMetadataNode("VerticalPhysicalPixelSpacing");
            subNode.setAttribute("value", "" + (1 / yPixelsPerMeter * 1000));
            node.appendChild(subNode);


            return node;
        }
        return null;

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        return count == 0 ? "" : "" + count;
    }


    private void addXYZPoints(IIOMetadataNode root, String name, double x, double y, double z) {
        IIOMetadataNode node = addChildNode(root, name, null);
        addChildNode(node, "X", new Double(x));
        addChildNode(node, "Y", new Double(y));
        addChildNode(node, "Z", new Double(z));
    }

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    }


    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;
    }

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        return text_node;
    }


    public IIOMetadataNode getStandardTransparencyNode() {
        IIOMetadataNode transparency_node =
            new IIOMetadataNode("Transparency");
        IIOMetadataNode node = null; // scratch node


        node = new IIOMetadataNode("Alpha");
        boolean hasAlpha =
            (IHDR_colorType == PNGImageReader.PNG_COLOR_RGB_ALPHA) ||
            (IHDR_colorType == PNGImageReader.PNG_COLOR_GRAY_ALPHA) ||
            (IHDR_colorType == PNGImageReader.PNG_COLOR_PALETTE &&
             tRNS_present &&
             (tRNS_colorType == IHDR_colorType) &&
             (tRNS_alpha != null));
        node.setAttribute("value", hasAlpha ? "nonpremultipled" : "none");
        transparency_node.appendChild(node);


        if (tRNS_present) {
            node = new IIOMetadataNode("TransparentColor");
            if (tRNS_colorType == PNGImageReader.PNG_COLOR_RGB) {
                node.setAttribute("value",
                                  Integer.toString(tRNS_red) + " " +
                                  Integer.toString(tRNS_green) + " " +
                                  Integer.toString(tRNS_blue));
            } else if (tRNS_colorType == PNGImageReader.PNG_COLOR_GRAY) {
                node.setAttribute("value", Integer.toString(tRNS_gray));
            }
            transparency_node.appendChild(node);
        }


        return transparency_node;

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        }
        return newGuy;
    }


    IIOMetadataNode getNativeNode() {
        IIOMetadataNode node = new IIOMetadataNode("sof");
        node.setAttribute("process", Integer.toString(tag-JPEG.SOF0));
        node.setAttribute("samplePrecision",
                          Integer.toString(samplePrecision));
        node.setAttribute("numLines",
                          Integer.toString(numLines));
        node.setAttribute("samplesPerLine",
                          Integer.toString(samplesPerLine));
        node.setAttribute("numFrameComponents",
                          Integer.toString(componentSpecs.length));
        for (int i = 0; i < componentSpecs.length; i++) {
            node.appendChild(componentSpecs[i].getNativeNode());
        }


        return node;
    }

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            } catch (CloneNotSupportedException e) {} // won't happen
            return null;
        }


        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;
        }

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