/*
* Copyright 2013-2015 Skynav, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY SKYNAV, INC. AND ITS 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 SKYNAV, INC. OR ITS 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.skynav.ttv.verifier.ttml.style;
import javax.xml.namespace.QName;
import org.xml.sax.Locator;
import com.skynav.ttv.util.Location;
import com.skynav.ttv.util.Reporter;
import com.skynav.ttv.verifier.StyleValueVerifier;
import com.skynav.ttv.verifier.VerifierContext;
public class OpacityVerifier implements StyleValueVerifier {
public boolean verify(Object value, Location location, VerifierContext context) {
Reporter reporter = context.getReporter();
Locator locator = location.getLocator();
assert value instanceof Float;
Float f = (Float) value;
float opacity = f.floatValue();
if (reporter.isWarningEnabled("out-of-range-opacity")) {
QName name = location.getAttributeName();
if (f.isNaN()) {
reporter.logWarning(reporter.message(locator,
"*KEY*", "Not a Number ''NaN'' should not be used with {0}; use ''0'' instead.", name));
} else if (f.isInfinite()) {
if (opacity < 0)
reporter.logWarning(reporter.message(locator,
"*KEY*", "Negative Infinity ''-INF'' should not be used with {0}; use ''0'' instead.", name));
else
reporter.logWarning(reporter.message(locator,
"*KEY*", "Positive Infinity ''INF'' should not be used with {0}; use ''1'' instead.", name));
} else if (opacity < 0) {
reporter.logWarning(reporter.message(locator,
"*KEY*", "Negative values should not be used with {0}; use ''0'' instead.", name));
} else if (opacity > 1) {
reporter.logWarning(reporter.message(locator,
"*KEY*", "Positive values greater than 1 should not be used with {0}; use ''1'' instead.", name));
}
}
return true;
}
}