/*******************************************************************************
* Copyright 2010 Atos Worldline SAS
*
* Licensed by Atos Worldline SAS under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* Atos Worldline SAS licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package net.padaf.preflight.graphics.color;
import static net.padaf.preflight.ValidationConstants.ERROR_GRAPHIC_INVALID_COLOR_SPACE;
import static net.padaf.preflight.ValidationConstants.ERROR_GRAPHIC_INVALID_COLOR_SPACE_FORBIDDEN;
import static net.padaf.preflight.ValidationConstants.ERROR_GRAPHIC_INVALID_COLOR_SPACE_MISSING;
import java.io.IOException;
import java.util.List;
import net.padaf.preflight.DocumentHandler;
import net.padaf.preflight.ValidationResult.ValidationError;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace;
import org.apache.pdfbox.pdmodel.graphics.color.PDIndexed;
/**
* This class defines restrictions on Color Spaces. It checks the consistency of
* the Color space with the DestOutputIntent, if the color space isn't a Device
* Color space or a Indexed color space using Device the validation will fail.
*/
public class DeviceColorSpaceHelper extends StandardColorSpaceHelper {
DeviceColorSpaceHelper(COSBase object, DocumentHandler _handler) {
super(object, _handler);
}
DeviceColorSpaceHelper(PDColorSpace object, DocumentHandler _handler) {
super(object, _handler);
}
/**
* This method updates the given list with a ValidationError
* (ERROR_GRAPHIC_INVALID_PATTERN_COLOR_SPACE_FORBIDDEN) and returns false.
*/
protected boolean processPatternColorSpace(List<ValidationError> result) {
result
.add(new ValidationError(ERROR_GRAPHIC_INVALID_COLOR_SPACE_FORBIDDEN, "Pattern ColorSpace is forbidden"));
return false;
}
/**
* This method updates the given list with a ValidationError
* (ERROR_GRAPHIC_INVALID_PATTERN_COLOR_SPACE_FORBIDDEN) and returns false.
*/
protected boolean processCalibratedColorSpace(List<ValidationError> result) {
result
.add(new ValidationError(ERROR_GRAPHIC_INVALID_COLOR_SPACE_FORBIDDEN, "Calibrated ColorSpace is forbidden"));
return false;
}
/**
* This method updates the given list with a ValidationError
* (ERROR_GRAPHIC_INVALID_PATTERN_COLOR_SPACE_FORBIDDEN) and returns false.
*/
protected boolean processICCBasedColorSpace(PDColorSpace pdcs,
List<ValidationError> result) {
result
.add(new ValidationError(ERROR_GRAPHIC_INVALID_COLOR_SPACE_FORBIDDEN, "ICCBased ColorSpace is forbidden"));
return false;
}
/**
* This method updates the given list with a ValidationError
* (ERROR_GRAPHIC_INVALID_PATTERN_COLOR_SPACE_FORBIDDEN) and returns false.
*/
protected boolean processDeviceNColorSpace(PDColorSpace pdcs,
List<ValidationError> result) {
result
.add(new ValidationError(ERROR_GRAPHIC_INVALID_COLOR_SPACE_FORBIDDEN, "DeviceN ColorSpace is forbidden"));
return false;
}
/**
* Indexed color space is authorized only if the BaseColorSpace is a DeviceXXX
* color space. In all other cases the given list is updated with a
* ValidationError (ERROR_GRAPHIC_INVALID_PATTERN_COLOR_SPACE_FORBIDDEN) and
* returns false.
*/
protected boolean processIndexedColorSpace(PDColorSpace pdcs,
List<ValidationError> result) {
PDIndexed indexed = (PDIndexed) pdcs;
try {
if (iccpw == null) {
result.add(new ValidationError(
ERROR_GRAPHIC_INVALID_COLOR_SPACE_MISSING, "DestOutputProfile is missing"));
return false;
}
PDColorSpace based = indexed.getBaseColorSpace();
ColorSpaces cs = ColorSpaces.valueOf(based.getName());
switch (cs) {
case DeviceCMYK:
case DeviceCMYK_SHORT:
case DeviceRGB:
case DeviceRGB_SHORT:
case DeviceGray:
case DeviceGray_SHORT:
return processAllColorSpace(based, result);
default:
result.add(new ValidationError(
ERROR_GRAPHIC_INVALID_COLOR_SPACE_FORBIDDEN, cs.getLabel() + " ColorSpace is forbidden"));
return false;
}
} catch (IOException e) {
result.add(new ValidationError(ERROR_GRAPHIC_INVALID_COLOR_SPACE, "Unable to read Indexed Color Space : " + e.getMessage()));
return false;
}
}
/**
* This method updates the given list with a ValidationError
* (ERROR_GRAPHIC_INVALID_PATTERN_COLOR_SPACE_FORBIDDEN) and returns false.
*/
protected boolean processSeparationColorSpace(PDColorSpace pdcs,
List<ValidationError> result) {
result
.add(new ValidationError(ERROR_GRAPHIC_INVALID_COLOR_SPACE_FORBIDDEN, "Separation ColorSpace is forbidden"));
return false;
}
}