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/*
* Copyright (c) 2014, 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.psd;
import javax.imageio.IIOException;
import javax.imageio.stream.ImageInputStream;
import java.io.IOException;
/**
* PSDResolutionInfo
*
* @author Harald Kuhr
* @author last modified by $Author: haraldk$
* @version $Id: PSDResolutionInfo.java,v 1.0 May 2, 2008 3:58:19 PM haraldk Exp$
*/
final class PSDResolutionInfo extends PSDImageResource {
// typedef struct _ResolutionInfo
// {
// LONG hRes; /* Fixed-point number: pixels per inch */
// WORD hResUnit; /* 1=pixels per inch, 2=pixels per centimeter */
// WORD WidthUnit; /* 1=in, 2=cm, 3=pt, 4=picas, 5=columns */
// LONG vRes; /* Fixed-point number: pixels per inch */
// WORD vResUnit; /* 1=pixels per inch, 2=pixels per centimeter */
// WORD HeightUnit; /* 1=in, 2=cm, 3=pt, 4=picas, 5=columns */
// } RESOLUTIONINFO;
float hRes;
short hResUnit;
short widthUnit;
float vRes;
short vResUnit;
short heightUnit;
PSDResolutionInfo(final short pId, final ImageInputStream pInput) throws IOException {
super(pId, pInput);
}
@Override
protected void readData(ImageInputStream pInput) throws IOException {
if (size != 16) {
throw new IIOException("Resolution info length expected to be 16: " + size);
}
hRes = PSDUtil.fixedPointToFloat(pInput.readInt());
hResUnit = pInput.readShort();
widthUnit = pInput.readShort();
vRes = PSDUtil.fixedPointToFloat(pInput.readInt());
vResUnit = pInput.readShort();
heightUnit = pInput.readShort();
}
@Override
public String toString() {
StringBuilder builder = toStringBuilder();
builder.append(", hRes: ").append(hRes);
builder.append(" ");
builder.append(resUnit(hResUnit));
builder.append(", width unit: ");
builder.append(dimUnit(widthUnit));
builder.append(", vRes: ").append(vRes);
builder.append(" ");
builder.append(resUnit(vResUnit));
builder.append(", height unit: ");
builder.append(dimUnit(heightUnit));
builder.append("]");
return builder.toString();
}
private String resUnit(final short pResUnit) {
switch (pResUnit) {
case 1:
return "pixels/inch";
case 2:
return "pixels/cm";
default:
return "unknown unit " + pResUnit;
}
}
private String dimUnit(final short pUnit) {
switch (pUnit) {
case 1:
return "in";
case 2:
return "cm";
case 3:
return "pt";
case 4:
return "pica";
case 5:
return "column";
default:
return "unknown unit " + pUnit;
}
}
}