mirror of
https://github.com/haraldk/TwelveMonkeys.git
synced 2025-10-04 11:26:44 -04:00
Fixed JavaDoc errors to enable Java 8 build.
This commit is contained in:
Harald Kuhr
File diff suppressed because it is too large
Load Diff
@@ -1,188 +1,187 @@
|
||||
/*
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* Copyright (c) 2008, Harald Kuhr
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* * Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
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||||
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package com.twelvemonkeys.imageio.plugins.svg;
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import com.twelvemonkeys.imageio.spi.ImageReaderSpiBase;
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import com.twelvemonkeys.lang.SystemUtil;
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import javax.imageio.ImageReader;
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import javax.imageio.spi.ServiceRegistry;
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import javax.imageio.stream.ImageInputStream;
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import java.io.EOFException;
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import java.io.IOException;
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import java.util.Locale;
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import static com.twelvemonkeys.imageio.util.IIOUtil.deregisterProvider;
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/**
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* SVGImageReaderSpi
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* <p/>
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*
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* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
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* @version $Id: SVGImageReaderSpi.java,v 1.1 2003/12/02 16:45:00 haku Exp $
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*/
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public final class SVGImageReaderSpi extends ImageReaderSpiBase {
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final static boolean SVG_READER_AVAILABLE = SystemUtil.isClassAvailable("com.twelvemonkeys.imageio.plugins.svg.SVGImageReader", SVGImageReaderSpi.class);
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/**
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* Creates an {@code SVGImageReaderSpi}.
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*/
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@SuppressWarnings("WeakerAccess")
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public SVGImageReaderSpi() {
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super(new SVGProviderInfo());
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}
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public boolean canDecodeInput(final Object pSource) throws IOException {
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return pSource instanceof ImageInputStream && canDecode((ImageInputStream) pSource);
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}
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@SuppressWarnings("StatementWithEmptyBody")
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private static boolean canDecode(final ImageInputStream pInput) throws IOException {
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// NOTE: This test is quite quick as it does not involve any parsing,
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// however it may not recognize all kinds of SVG documents.
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||||
try {
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pInput.mark();
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||||
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// TODO: This is not ok for UTF-16 and other wide encodings
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// TODO: Use an XML (encoding) aware Reader instance instead
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// Need to figure out pretty fast if this is XML or not
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int b;
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while (Character.isWhitespace((char) (b = pInput.read()))) {
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// Skip over leading WS
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}
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// If it's not a tag, this can't be valid XML
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if (b != '<') {
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return false;
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}
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// Algorithm for detecting SVG:
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// - Skip until begin tag '<' and read 4 bytes
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// - if next is "?" skip until "?>" and start over
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// - else if next is "!--" skip until "-->" and start over
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// - else if next is "!DOCTYPE " skip any whitespace
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// - compare next 3 bytes against "svg", return result
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// - else
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// - compare next 3 bytes against "svg", return result
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byte[] buffer = new byte[4];
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while (true) {
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pInput.readFully(buffer);
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if (buffer[0] == '?') {
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// This is the XML declaration or a processing instruction
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while (!((pInput.readByte() & 0xFF) == '?' && pInput.read() == '>')) {
|
||||
// Skip until end of XML declaration or processing instruction or EOF
|
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}
|
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}
|
||||
else if (buffer[0] == '!') {
|
||||
if (buffer[1] == '-' && buffer[2] == '-') {
|
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// This is a comment
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while (!((pInput.readByte() & 0xFF) == '-' && pInput.read() == '-' && pInput.read() == '>')) {
|
||||
// Skip until end of comment or EOF
|
||||
}
|
||||
}
|
||||
else if (buffer[1] == 'D' && buffer[2] == 'O' && buffer[3] == 'C'
|
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&& pInput.read() == 'T' && pInput.read() == 'Y'
|
||||
&& pInput.read() == 'P' && pInput.read() == 'E') {
|
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// This is the DOCTYPE declaration
|
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while (Character.isWhitespace((char) (b = pInput.read()))) {
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// Skip over WS
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}
|
||||
|
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if (b == 's' && pInput.read() == 'v' && pInput.read() == 'g') {
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// It's SVG, identified by DOCTYPE
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return true;
|
||||
}
|
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// DOCTYPE found, but not SVG
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return false;
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}
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|
||||
// Something else, we'll skip
|
||||
}
|
||||
else {
|
||||
// This is a normal tag
|
||||
if (buffer[0] == 's' && buffer[1] == 'v' && buffer[2] == 'g'
|
||||
&& (Character.isWhitespace((char) buffer[3]) || buffer[3] == ':')) {
|
||||
// It's SVG, identified by root tag
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// TODO: Support svg with prefix + recognize namespace (http://www.w3.org/2000/svg)!
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return true;
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||||
}
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||||
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// If the tag is not "svg", this isn't SVG
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return false;
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}
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||||
|
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while ((pInput.readByte() & 0xFF) != '<') {
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||||
// Skip over, until next begin tag or EOF
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}
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}
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||||
}
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||||
catch (EOFException ignore) {
|
||||
// Possible for small files...
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return false;
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||||
}
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||||
finally {
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//noinspection ThrowFromFinallyBlock
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||||
pInput.reset();
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||||
}
|
||||
}
|
||||
|
||||
public ImageReader createReaderInstance(final Object extension) throws IOException {
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return new SVGImageReader(this);
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||||
}
|
||||
|
||||
public String getDescription(final Locale locale) {
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||||
return "Scalable Vector Graphics (SVG) format image reader";
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||||
}
|
||||
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||||
@SuppressWarnings({"deprecation"})
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||||
@Override
|
||||
public void onRegistration(final ServiceRegistry registry, final Class<?> category) {
|
||||
// TODO: Perhaps just try to create an instance, and de-register if we fail?
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||||
if (!SVG_READER_AVAILABLE) {
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||||
System.err.println("Could not instantiate SVGImageReader (missing support classes).");
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||||
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||||
try {
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// NOTE: This will break, but it gives us some useful debug info
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new SVGImageReader(this);
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||||
}
|
||||
catch (Throwable t) {
|
||||
t.printStackTrace();
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||||
}
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||||
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||||
deregisterProvider(registry, this, category);
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}
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||||
}
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||||
}
|
||||
|
||||
/*
|
||||
* Copyright (c) 2008, Harald Kuhr
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* * Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
package com.twelvemonkeys.imageio.plugins.svg;
|
||||
|
||||
import com.twelvemonkeys.imageio.spi.ImageReaderSpiBase;
|
||||
import com.twelvemonkeys.lang.SystemUtil;
|
||||
|
||||
import javax.imageio.ImageReader;
|
||||
import javax.imageio.spi.ServiceRegistry;
|
||||
import javax.imageio.stream.ImageInputStream;
|
||||
import java.io.EOFException;
|
||||
import java.io.IOException;
|
||||
import java.util.Locale;
|
||||
|
||||
import static com.twelvemonkeys.imageio.util.IIOUtil.deregisterProvider;
|
||||
|
||||
/**
|
||||
* SVGImageReaderSpi
|
||||
*
|
||||
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
|
||||
* @version $Id: SVGImageReaderSpi.java,v 1.1 2003/12/02 16:45:00 haku Exp $
|
||||
*/
|
||||
public final class SVGImageReaderSpi extends ImageReaderSpiBase {
|
||||
|
||||
final static boolean SVG_READER_AVAILABLE = SystemUtil.isClassAvailable("com.twelvemonkeys.imageio.plugins.svg.SVGImageReader", SVGImageReaderSpi.class);
|
||||
|
||||
/**
|
||||
* Creates an {@code SVGImageReaderSpi}.
|
||||
*/
|
||||
@SuppressWarnings("WeakerAccess")
|
||||
public SVGImageReaderSpi() {
|
||||
super(new SVGProviderInfo());
|
||||
}
|
||||
|
||||
public boolean canDecodeInput(final Object pSource) throws IOException {
|
||||
return pSource instanceof ImageInputStream && canDecode((ImageInputStream) pSource);
|
||||
}
|
||||
|
||||
@SuppressWarnings("StatementWithEmptyBody")
|
||||
private static boolean canDecode(final ImageInputStream pInput) throws IOException {
|
||||
// NOTE: This test is quite quick as it does not involve any parsing,
|
||||
// however it may not recognize all kinds of SVG documents.
|
||||
try {
|
||||
pInput.mark();
|
||||
|
||||
// TODO: This is not ok for UTF-16 and other wide encodings
|
||||
// TODO: Use an XML (encoding) aware Reader instance instead
|
||||
// Need to figure out pretty fast if this is XML or not
|
||||
int b;
|
||||
while (Character.isWhitespace((char) (b = pInput.read()))) {
|
||||
// Skip over leading WS
|
||||
}
|
||||
|
||||
// If it's not a tag, this can't be valid XML
|
||||
if (b != '<') {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Algorithm for detecting SVG:
|
||||
// - Skip until begin tag '<' and read 4 bytes
|
||||
// - if next is "?" skip until "?>" and start over
|
||||
// - else if next is "!--" skip until "-->" and start over
|
||||
// - else if next is "!DOCTYPE " skip any whitespace
|
||||
// - compare next 3 bytes against "svg", return result
|
||||
// - else
|
||||
// - compare next 3 bytes against "svg", return result
|
||||
|
||||
byte[] buffer = new byte[4];
|
||||
while (true) {
|
||||
pInput.readFully(buffer);
|
||||
|
||||
if (buffer[0] == '?') {
|
||||
// This is the XML declaration or a processing instruction
|
||||
while (!((pInput.readByte() & 0xFF) == '?' && pInput.read() == '>')) {
|
||||
// Skip until end of XML declaration or processing instruction or EOF
|
||||
}
|
||||
}
|
||||
else if (buffer[0] == '!') {
|
||||
if (buffer[1] == '-' && buffer[2] == '-') {
|
||||
// This is a comment
|
||||
while (!((pInput.readByte() & 0xFF) == '-' && pInput.read() == '-' && pInput.read() == '>')) {
|
||||
// Skip until end of comment or EOF
|
||||
}
|
||||
}
|
||||
else if (buffer[1] == 'D' && buffer[2] == 'O' && buffer[3] == 'C'
|
||||
&& pInput.read() == 'T' && pInput.read() == 'Y'
|
||||
&& pInput.read() == 'P' && pInput.read() == 'E') {
|
||||
// This is the DOCTYPE declaration
|
||||
while (Character.isWhitespace((char) (b = pInput.read()))) {
|
||||
// Skip over WS
|
||||
}
|
||||
|
||||
if (b == 's' && pInput.read() == 'v' && pInput.read() == 'g') {
|
||||
// It's SVG, identified by DOCTYPE
|
||||
return true;
|
||||
}
|
||||
|
||||
// DOCTYPE found, but not SVG
|
||||
return false;
|
||||
}
|
||||
|
||||
// Something else, we'll skip
|
||||
}
|
||||
else {
|
||||
// This is a normal tag
|
||||
if (buffer[0] == 's' && buffer[1] == 'v' && buffer[2] == 'g'
|
||||
&& (Character.isWhitespace((char) buffer[3]) || buffer[3] == ':')) {
|
||||
// It's SVG, identified by root tag
|
||||
// TODO: Support svg with prefix + recognize namespace (http://www.w3.org/2000/svg)!
|
||||
return true;
|
||||
}
|
||||
|
||||
// If the tag is not "svg", this isn't SVG
|
||||
return false;
|
||||
}
|
||||
|
||||
while ((pInput.readByte() & 0xFF) != '<') {
|
||||
// Skip over, until next begin tag or EOF
|
||||
}
|
||||
}
|
||||
}
|
||||
catch (EOFException ignore) {
|
||||
// Possible for small files...
|
||||
return false;
|
||||
}
|
||||
finally {
|
||||
//noinspection ThrowFromFinallyBlock
|
||||
pInput.reset();
|
||||
}
|
||||
}
|
||||
|
||||
public ImageReader createReaderInstance(final Object extension) throws IOException {
|
||||
return new SVGImageReader(this);
|
||||
}
|
||||
|
||||
public String getDescription(final Locale locale) {
|
||||
return "Scalable Vector Graphics (SVG) format image reader";
|
||||
}
|
||||
|
||||
@SuppressWarnings({"deprecation"})
|
||||
@Override
|
||||
public void onRegistration(final ServiceRegistry registry, final Class<?> category) {
|
||||
// TODO: Perhaps just try to create an instance, and de-register if we fail?
|
||||
if (!SVG_READER_AVAILABLE) {
|
||||
System.err.println("Could not instantiate SVGImageReader (missing support classes).");
|
||||
|
||||
try {
|
||||
// NOTE: This will break, but it gives us some useful debug info
|
||||
new SVGImageReader(this);
|
||||
}
|
||||
catch (Throwable t) {
|
||||
t.printStackTrace();
|
||||
}
|
||||
|
||||
deregisterProvider(registry, this, category);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -1,102 +1,101 @@
|
||||
/*
|
||||
* Copyright (c) 2008, Harald Kuhr
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* * Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
package com.twelvemonkeys.imageio.plugins.wmf;
|
||||
|
||||
import com.twelvemonkeys.imageio.spi.ImageReaderSpiBase;
|
||||
import com.twelvemonkeys.imageio.util.IIOUtil;
|
||||
|
||||
import javax.imageio.ImageReader;
|
||||
import javax.imageio.spi.ServiceRegistry;
|
||||
import javax.imageio.stream.ImageInputStream;
|
||||
import java.io.IOException;
|
||||
import java.util.Locale;
|
||||
|
||||
import static com.twelvemonkeys.imageio.plugins.wmf.WMFProviderInfo.WMF_READER_AVAILABLE;
|
||||
|
||||
/**
|
||||
* WMFImageReaderSpi
|
||||
* <p/>
|
||||
*
|
||||
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
|
||||
* @version $Id: WMFImageReaderSpi.java,v 1.1 2003/12/02 16:45:00 wmhakur Exp $
|
||||
*/
|
||||
public final class WMFImageReaderSpi extends ImageReaderSpiBase {
|
||||
|
||||
/**
|
||||
* Creates a {@code WMFImageReaderSpi}.
|
||||
*/
|
||||
public WMFImageReaderSpi() {
|
||||
super(new WMFProviderInfo());
|
||||
}
|
||||
|
||||
public boolean canDecodeInput(final Object source) throws IOException {
|
||||
return source instanceof ImageInputStream && WMF_READER_AVAILABLE && canDecode((ImageInputStream) source);
|
||||
}
|
||||
|
||||
public static boolean canDecode(final ImageInputStream pInput) throws IOException {
|
||||
if (pInput == null) {
|
||||
throw new IllegalArgumentException("input == null");
|
||||
}
|
||||
|
||||
try {
|
||||
pInput.mark();
|
||||
|
||||
for (byte header : WMF.HEADER) {
|
||||
int read = (byte) pInput.read();
|
||||
if (header != read) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
|
||||
}
|
||||
finally {
|
||||
pInput.reset();
|
||||
}
|
||||
}
|
||||
|
||||
public ImageReader createReaderInstance(final Object extension) throws IOException {
|
||||
return new WMFImageReader(this);
|
||||
}
|
||||
|
||||
public String getDescription(final Locale locale) {
|
||||
return "Windows Meta File (WMF) image reader";
|
||||
}
|
||||
|
||||
@SuppressWarnings({"deprecation"})
|
||||
@Override
|
||||
public void onRegistration(final ServiceRegistry registry, final Class<?> category) {
|
||||
if (!WMF_READER_AVAILABLE) {
|
||||
IIOUtil.deregisterProvider(registry, this, category);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Copyright (c) 2008, Harald Kuhr
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* * Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
package com.twelvemonkeys.imageio.plugins.wmf;
|
||||
|
||||
import com.twelvemonkeys.imageio.spi.ImageReaderSpiBase;
|
||||
import com.twelvemonkeys.imageio.util.IIOUtil;
|
||||
|
||||
import javax.imageio.ImageReader;
|
||||
import javax.imageio.spi.ServiceRegistry;
|
||||
import javax.imageio.stream.ImageInputStream;
|
||||
import java.io.IOException;
|
||||
import java.util.Locale;
|
||||
|
||||
import static com.twelvemonkeys.imageio.plugins.wmf.WMFProviderInfo.WMF_READER_AVAILABLE;
|
||||
|
||||
/**
|
||||
* WMFImageReaderSpi
|
||||
*
|
||||
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
|
||||
* @version $Id: WMFImageReaderSpi.java,v 1.1 2003/12/02 16:45:00 wmhakur Exp $
|
||||
*/
|
||||
public final class WMFImageReaderSpi extends ImageReaderSpiBase {
|
||||
|
||||
/**
|
||||
* Creates a {@code WMFImageReaderSpi}.
|
||||
*/
|
||||
public WMFImageReaderSpi() {
|
||||
super(new WMFProviderInfo());
|
||||
}
|
||||
|
||||
public boolean canDecodeInput(final Object source) throws IOException {
|
||||
return source instanceof ImageInputStream && WMF_READER_AVAILABLE && canDecode((ImageInputStream) source);
|
||||
}
|
||||
|
||||
public static boolean canDecode(final ImageInputStream pInput) throws IOException {
|
||||
if (pInput == null) {
|
||||
throw new IllegalArgumentException("input == null");
|
||||
}
|
||||
|
||||
try {
|
||||
pInput.mark();
|
||||
|
||||
for (byte header : WMF.HEADER) {
|
||||
int read = (byte) pInput.read();
|
||||
if (header != read) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
|
||||
}
|
||||
finally {
|
||||
pInput.reset();
|
||||
}
|
||||
}
|
||||
|
||||
public ImageReader createReaderInstance(final Object extension) throws IOException {
|
||||
return new WMFImageReader(this);
|
||||
}
|
||||
|
||||
public String getDescription(final Locale locale) {
|
||||
return "Windows Meta File (WMF) image reader";
|
||||
}
|
||||
|
||||
@SuppressWarnings({"deprecation"})
|
||||
@Override
|
||||
public void onRegistration(final ServiceRegistry registry, final Class<?> category) {
|
||||
if (!WMF_READER_AVAILABLE) {
|
||||
IIOUtil.deregisterProvider(registry, this, category);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user