86 lines
2.8 KiB
Java
86 lines
2.8 KiB
Java
/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.hslf.blip;
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import org.apache.poi.hslf.model.Picture;
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/**
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* Represents a JPEG picture data in a PPT file
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*
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* @author Yegor Kozlov
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*/
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public final class JPEG extends Bitmap {
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public enum ColorSpace { rgb, cymk };
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private ColorSpace colorSpace = ColorSpace.rgb;
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/**
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* @return type of this picture
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* @see org.apache.poi.hslf.model.Picture#JPEG
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*/
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public int getType(){
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return Picture.JPEG;
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}
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public ColorSpace getColorSpace() {
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return colorSpace;
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}
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public void setColorSpace(ColorSpace colorSpace) {
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this.colorSpace = colorSpace;
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}
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/**
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* JPEG signature is one of {@code 0x46A0, 0x46B0, 0x6E20, 0x6E30}
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*
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* @return JPEG signature ({@code 0x46A0, 0x46B0, 0x6E20, 0x6E30})
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*/
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public int getSignature(){
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return (colorSpace == ColorSpace.rgb)
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? (uidInstanceCount == 1 ? 0x46A0 : 0x46B0)
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: (uidInstanceCount == 1 ? 0x6E20 : 0x6E30);
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}
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/**
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* Sets the PICT signature - either {@code 0x5420} or {@code 0x5430}
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*/
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public void setSignature(int signature) {
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switch (signature) {
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case 0x46A0:
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uidInstanceCount = 1;
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colorSpace = ColorSpace.rgb;
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break;
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case 0x46B0:
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uidInstanceCount = 2;
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colorSpace = ColorSpace.rgb;
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break;
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case 0x6E20:
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uidInstanceCount = 1;
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colorSpace = ColorSpace.cymk;
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break;
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case 0x6E30:
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uidInstanceCount = 2;
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colorSpace = ColorSpace.cymk;
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break;
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default:
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throw new IllegalArgumentException(signature+" is not a valid instance/signature value for JPEG");
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}
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}
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}
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