/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.
*/
/**
* @author Rustem V. Rafikov
*/
package com.google.code.appengine.imageio;
import org.apache.harmony.x.imageio.internal.nls.Messages;
import com.google.code.appengine.awt.*;
import com.google.code.appengine.imageio.IIOParamController;
import com.google.code.appengine.imageio.ImageTypeSpecifier;
public abstract class IIOParam {
protected Rectangle sourceRegion;
protected int sourceXSubsampling = 1;
protected int sourceYSubsampling = 1;
protected int subsamplingXOffset;
protected int subsamplingYOffset;
protected int[] sourceBands;
protected ImageTypeSpecifier destinationType;
protected Point destinationOffset = new Point(0, 0);
protected IIOParamController defaultController;
protected IIOParamController controller;
protected IIOParam() {}
public void setSourceRegion(Rectangle sourceRegion) {
if (sourceRegion != null) {
if (sourceRegion.x < 0) {
throw new IllegalArgumentException(Messages.getString("imageio.15"));
}
if (sourceRegion.y < 0) {
throw new IllegalArgumentException(Messages.getString("imageio.16"));
}
if (sourceRegion.width <= 0) {
throw new IllegalArgumentException(Messages.getString("imageio.17"));
}
if (sourceRegion.height <= 0) {
throw new IllegalArgumentException(Messages.getString("imageio.18"));
}
if (sourceRegion.width <= subsamplingXOffset) {
throw new IllegalArgumentException(Messages.getString("imageio.19"));
}
if (sourceRegion.height <= subsamplingYOffset) {
throw new IllegalArgumentException(Messages.getString("imageio.1A"));
}
//-- clone it to avoid unexpected modifications
this.sourceRegion = (Rectangle) sourceRegion.clone();
} else {
this.sourceRegion = null;
}
}
public Rectangle getSourceRegion() {
if (sourceRegion == null) {
return null;
}
//-- clone it to avoid unexpected modifications
return (Rectangle) sourceRegion.clone();
}
public void setSourceSubsampling(int sourceXSubsampling,
int sourceYSubsampling,
int subsamplingXOffset,
int subsamplingYOffset) {
if (sourceXSubsampling <= 0) {
throw new IllegalArgumentException(Messages.getString("imageio.1B"));
}
if (sourceYSubsampling <= 0) {
throw new IllegalArgumentException(Messages.getString("imageio.1C"));
}
if ((subsamplingXOffset < 0) || (subsamplingXOffset >= sourceXSubsampling)) {
throw new IllegalArgumentException(Messages.getString("imageio.1D"));
}
if ((subsamplingYOffset < 0) || (subsamplingYOffset >= sourceYSubsampling)) {
throw new IllegalArgumentException(Messages.getString("imageio.1E"));
}
//-- does region contain pixels
if (sourceRegion != null) {
if (sourceRegion.width <= subsamplingXOffset ||
sourceRegion.height <= subsamplingYOffset) {
throw new IllegalArgumentException(Messages.getString("imageio.1F"));
}
}
this.sourceXSubsampling = sourceXSubsampling;
this.sourceYSubsampling = sourceYSubsampling;
this.subsamplingXOffset = subsamplingXOffset;
this.subsamplingYOffset = subsamplingYOffset;
}
public int getSourceXSubsampling() {
return sourceXSubsampling;
}
public int getSourceYSubsampling() {
return sourceYSubsampling;
}
public int getSubsamplingXOffset() {
return subsamplingXOffset;
}
public int getSubsamplingYOffset() {
return subsamplingYOffset;
}
public void setSourceBands(final int[] sourceBands) {
if (sourceBands == null) {
this.sourceBands = null;
} else {
for (int i = 0; i < sourceBands.length; i++) {
if (sourceBands[i] < 0) {
throw new IllegalArgumentException(Messages.getString("imageio.20"));
}
for (int j = i + 1; j < sourceBands.length; j++) {
if (sourceBands[i] == sourceBands[j]) {
throw new IllegalArgumentException(Messages.getString("imageio.21"));
}
}
}
this.sourceBands = sourceBands.clone();
}
}
public int[] getSourceBands() {
return (sourceBands != null) ? sourceBands.clone() : null;
}
public void setDestinationType(final ImageTypeSpecifier destinationType) {
this.destinationType = destinationType;
}
public ImageTypeSpecifier getDestinationType() {
return destinationType;
}
public void setDestinationOffset(Point destinationOffset) {
if (destinationOffset == null) {
throw new IllegalArgumentException(Messages.getString("imageio.22"));
}
this.destinationOffset = (Point) destinationOffset.clone();
}
public Point getDestinationOffset() {
return (Point) destinationOffset.clone();
}
public void setController(final IIOParamController controller) {
this.controller = controller;
}
public IIOParamController getController(){
return controller;
}
public IIOParamController getDefaultController() {
return defaultController;
}
public boolean hasController() {
return (controller != null);
}
public boolean activateController() {
final IIOParamController controller = getController();
if (controller == null) {
throw new IllegalStateException(Messages.getString("imageio.23"));
}
return controller.activate(this);
}
}