/*
* 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 Igor V. Stolyarov
* @version $Revision$
*/
package java.awt.image;
import java.awt.Point;
import java.awt.Rectangle;
import org.apache.harmony.awt.internal.nls.Messages;
/**
* The WritableRaster class provides functionality for writing samples and pixel
* capabilities to the Raster.
*
* @since Android 1.0
*/
public class WritableRaster extends Raster {
/**
* Instantiates a new WritableRaster object with the specified SampleModel,
* DataBuffer, rectangular region and parent WritableRaster.
*
* @param sampleModel
* the specified SampleModel.
* @param dataBuffer
* the specified DataBuffer.
* @param aRegion
* the rectangular region which defines the new image bounds.
* @param sampleModelTranslate
* this point defines the translation point from the SampleModel
* to the new WritableRaster coordinates.
* @param parent
* the parent of this WritableRaster.
*/
protected WritableRaster(SampleModel sampleModel, DataBuffer dataBuffer, Rectangle aRegion,
Point sampleModelTranslate, WritableRaster parent) {
super(sampleModel, dataBuffer, aRegion, sampleModelTranslate, parent);
}
/**
* Instantiates a new WritableRaster object with the specified SampleModel
* which defines a layout of this WritableRaster and DataBuffer objects
* which defines the image data.
*
* @param sampleModel
* the specified SampleModel.
* @param dataBuffer
* the specified DataBuffer.
* @param origin
* the point of origin.
*/
protected WritableRaster(SampleModel sampleModel, DataBuffer dataBuffer, Point origin) {
this(sampleModel, dataBuffer, new Rectangle(origin.x, origin.y, sampleModel.width,
sampleModel.height), origin, null);
}
/**
* Instantiates a new WritableRaster with the specified SampleModel.
*
* @param sampleModel
* the specified SampleModel.
* @param origin
* the origin.
*/
protected WritableRaster(SampleModel sampleModel, Point origin) {
this(sampleModel, sampleModel.createDataBuffer(), new Rectangle(origin.x, origin.y,
sampleModel.width, sampleModel.height), origin, null);
}
/**
* Sets the data for a single pixel from an input Object which represents an
* array of primitive types: DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT,
* DataBuffer.TYPE_INT, DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT, or
* DataBuffer.TYPE_DOUBLE.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param inData
* the input data.
*/
public void setDataElements(int x, int y, Object inData) {
sampleModel.setDataElements(x - sampleModelTranslateX, y - sampleModelTranslateY, inData,
dataBuffer);
}
/**
* Sets the data elements which represent pixel data to the specified
* rectangle area as a primitive array. The following image data types are
* supported: DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT,
* DataBuffer.TYPE_INT, DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT, or
* DataBuffer.TYPE_DOUBLE.
*
* @param x
* the X coordinate of the rectangle of pixels.
* @param y
* the Y coordinate of the rectangle of pixels.
* @param w
* the width of the rectangle of pixels.
* @param h
* the height of the rectangle of pixels.
* @param inData
* the array of primitive type data to be set to the specified
* area.
*/
public void setDataElements(int x, int y, int w, int h, Object inData) {
sampleModel.setDataElements(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h,
inData, dataBuffer);
}
/**
* Creates the child of this WritableRaster by sharing the specified
* rectangular area in this WritableRaster. The parentX, parentY, width and
* height parameters specify rectangular area to be shared.
*
* @param parentX
* the X coordinate of the upper left corner of the shared
* rectangle with respect to this WritableRaster' coordinates.
* @param parentY
* the Y coordinate of the upper left corner of the shared
* rectangle with respect to this WritableRaster' coordinates.
* @param w
* the width of the child area.
* @param h
* the height of the child area.
* @param childMinX
* the X coordinate of child area mapped to the parentX
* coordinate.
* @param childMinY
* the Y coordinate of child area mapped to the parentY
* coordinate.
* @param bandList
* the array of band indices.
* @return the child WritableRaster.
*/
public WritableRaster createWritableChild(int parentX, int parentY, int w, int h,
int childMinX, int childMinY, int bandList[]) {
if (w <= 0 || h <= 0) {
// awt.244=Width or Height of child Raster is less than or equal to
// zero
throw new RasterFormatException(Messages.getString("awt.244")); //$NON-NLS-1$
}
if (parentX < this.minX || parentX + w > this.minX + this.width) {
// awt.245=parentX disposes outside Raster
throw new RasterFormatException(Messages.getString("awt.245")); //$NON-NLS-1$
}
if (parentY < this.minY || parentY + h > this.minY + this.height) {
// awt.246=parentY disposes outside Raster
throw new RasterFormatException(Messages.getString("awt.246")); //$NON-NLS-1$
}
if ((long)parentX + w > Integer.MAX_VALUE) {
// awt.247=parentX + w results in integer overflow
throw new RasterFormatException(Messages.getString("awt.247")); //$NON-NLS-1$
}
if ((long)parentY + h > Integer.MAX_VALUE) {
// awt.248=parentY + h results in integer overflow
throw new RasterFormatException(Messages.getString("awt.248")); //$NON-NLS-1$
}
if ((long)childMinX + w > Integer.MAX_VALUE) {
// awt.249=childMinX + w results in integer overflow
throw new RasterFormatException(Messages.getString("awt.249")); //$NON-NLS-1$
}
if ((long)childMinY + h > Integer.MAX_VALUE) {
// awt.24A=childMinY + h results in integer overflow
throw new RasterFormatException(Messages.getString("awt.24A")); //$NON-NLS-1$
}
SampleModel childModel;
if (bandList == null) {
childModel = sampleModel;
} else {
childModel = sampleModel.createSubsetSampleModel(bandList);
}
int childTranslateX = childMinX - parentX;
int childTranslateY = childMinY - parentY;
return new WritableRaster(childModel, dataBuffer,
new Rectangle(childMinX, childMinY, w, h), new Point(childTranslateX
+ sampleModelTranslateX, childTranslateY + sampleModelTranslateY), this);
}
/**
* Creates the translated child of this WritableRaster. New WritableRaster
* object is a reference to the this WritableRaster and with different
* location.
*
* @param childMinX
* the X coordinate of the new WritableRaster.
* @param childMinY
* the Y coordinate of the new WritableRaster.
* @return the WritableRaster.
*/
public WritableRaster createWritableTranslatedChild(int childMinX, int childMinY) {
return createWritableChild(minX, minY, width, height, childMinX, childMinY, null);
}
/**
* Gets the parent WritableRaster for this WritableRaster object.
*
* @return the parent WritableRaster for this WritableRaster object.
*/
public WritableRaster getWritableParent() {
return (WritableRaster)parent;
}
/**
* Sets pixels from the specified source Raster srcRaster to this
* WritableRaster.
*
* @param srcRaster
* the source Raster.
*/
public void setRect(Raster srcRaster) {
setRect(0, 0, srcRaster);
}
/**
* Sets pixels from the specified source Raster srcRaster to this
* WritableRaster. Each pixel with (x, y) coordinates from the source Raster
* is copied to pixel with (x+dx, y+dy) coordinates in this WritableRaster.
* The pixels with (x+dx, y+dy) coordinates which are out the bounds of this
* raster are ignored.
*
* @param dx
* the distance the pixel's X coordinate in the source Raster is
* translated when writtien to this WritableRaster.
* @param dy
* the distance the pixel's Y coordinate in the source Raster is
* translated when writtien to this WritableRaster.
* @param srcRaster
* the source Raster.
*/
public void setRect(int dx, int dy, Raster srcRaster) {
int w = srcRaster.getWidth();
int h = srcRaster.getHeight();
int srcX = srcRaster.getMinX();
int srcY = srcRaster.getMinY();
int dstX = srcX + dx;
int dstY = srcY + dy;
if (dstX < this.minX) {
int minOffX = this.minX - dstX;
w -= minOffX;
dstX = this.minX;
srcX += minOffX;
}
if (dstY < this.minY) {
int minOffY = this.minY - dstY;
h -= minOffY;
dstY = this.minY;
srcY += minOffY;
}
if (dstX + w > this.minX + this.width) {
int maxOffX = (dstX + w) - (this.minX + this.width);
w -= maxOffX;
}
if (dstY + h > this.minY + this.height) {
int maxOffY = (dstY + h) - (this.minY + this.height);
h -= maxOffY;
}
if (w <= 0 || h <= 0) {
return;
}
switch (sampleModel.getDataType()) {
case DataBuffer.TYPE_BYTE:
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
case DataBuffer.TYPE_INT:
int iPixelsLine[] = null;
for (int i = 0; i < h; i++) {
iPixelsLine = srcRaster.getPixels(srcX, srcY + i, w, 1, iPixelsLine);
setPixels(dstX, dstY + i, w, 1, iPixelsLine);
}
break;
case DataBuffer.TYPE_FLOAT:
float fPixelsLine[] = null;
for (int i = 0; i < h; i++) {
fPixelsLine = srcRaster.getPixels(srcX, srcY + i, w, 1, fPixelsLine);
setPixels(dstX, dstY + i, w, 1, fPixelsLine);
}
break;
case DataBuffer.TYPE_DOUBLE:
double dPixelsLine[] = null;
for (int i = 0; i < h; i++) {
dPixelsLine = srcRaster.getPixels(srcX, srcY + i, w, 1, dPixelsLine);
setPixels(dstX, dstY + i, w, 1, dPixelsLine);
}
break;
}
}
/**
* Sets the data for a rectangle of pixels from an input Raster to this
* WritableRaster.
*
* @param x
* the X coordinate of the point where the data of the input
* Raster is to be written.
* @param y
* the Y coordinate of the point where the data of the input
* Raster is to be written.
* @param inRaster
* the input Raster.
*/
public void setDataElements(int x, int y, Raster inRaster) {
int dstX = x + inRaster.getMinX();
int dstY = y + inRaster.getMinY();
int w = inRaster.getWidth();
int h = inRaster.getHeight();
if (dstX < this.minX || dstX + w > this.minX + this.width || dstY < this.minY
|| dstY + h > this.minY + this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
int srcX = inRaster.getMinX();
int srcY = inRaster.getMinY();
Object line = null;
for (int i = 0; i < h; i++) {
line = inRaster.getDataElements(srcX, srcY + i, w, 1, line);
setDataElements(dstX, dstY + i, w, 1, line);
}
}
/**
* Sets an integer array of samples for the specified pixel in this
* WritableRaster.
*
* @param x
* the pixel's X coordinate.
* @param y
* the pixel's Y coordinate.
* @param iArray
* the integer array of samples.
*/
public void setPixel(int x, int y, int iArray[]) {
sampleModel.setPixel(x - sampleModelTranslateX, y - sampleModelTranslateY, iArray,
dataBuffer);
}
/**
* Sets a float array of samples for the specified pixel in this
* WritableRaster.
*
* @param x
* the pixel's X coordinate.
* @param y
* the pixel's Y coordinate.
* @param fArray
* the float array of samples.
*/
public void setPixel(int x, int y, float fArray[]) {
sampleModel.setPixel(x - sampleModelTranslateX, y - sampleModelTranslateY, fArray,
dataBuffer);
}
/**
* Sets a double array of samples for the specified pixel in this
* WritableRaster.
*
* @param x
* the pixel's X coordinate.
* @param y
* the pixel's Y coordinate.
* @param dArray
* the double array of samples.
*/
public void setPixel(int x, int y, double dArray[]) {
sampleModel.setPixel(x - sampleModelTranslateX, y - sampleModelTranslateY, dArray,
dataBuffer);
}
/**
* Sets a integer array of samples for the specified rectangular area of
* pixels in this WritableRaster.
*
* @param x
* the X coordinate of rectangular area.
* @param y
* the Y coordinate of rectangular area.
* @param w
* the width of rectangular area.
* @param h
* the height of rectangular area.
* @param iArray
* the integer array of samples.
*/
public void setPixels(int x, int y, int w, int h, int iArray[]) {
sampleModel.setPixels(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, iArray,
dataBuffer);
}
/**
* Sets a float array of samples for the specified rectangular area of
* pixels in this WritableRaster.
*
* @param x
* the X coordinate of rectangular area.
* @param y
* the Y coordinate of rectangular area.
* @param w
* the width of rectangular area.
* @param h
* the height of rectangular area.
* @param fArray
* the float array of samples.
*/
public void setPixels(int x, int y, int w, int h, float fArray[]) {
sampleModel.setPixels(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, fArray,
dataBuffer);
}
/**
* Sets a double array of samples for the specified rectangular area of
* pixels in this WritableRaster.
*
* @param x
* the X coordinate of rectangular area.
* @param y
* the Y coordinate of rectangular area.
* @param w
* the width of rectangular area.
* @param h
* the height of rectangular area.
* @param dArray
* the double array of samples.
*/
public void setPixels(int x, int y, int w, int h, double dArray[]) {
sampleModel.setPixels(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, dArray,
dataBuffer);
}
/**
* Sets the samples for the specified band and the specified rectangular
* area of pixels with an integer array of samples.
*
* @param x
* the X coordinate of the area of pixels.
* @param y
* the Y coordinate of the area of pixels.
* @param w
* the width of the area of pixels.
* @param h
* the height of the area of pixels.
* @param b
* the specified band.
* @param iArray
* the integer array of samples.
*/
public void setSamples(int x, int y, int w, int h, int b, int iArray[]) {
sampleModel.setSamples(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, b,
iArray, dataBuffer);
}
/**
* Sets the samples for the specified band and the specified rectangular
* area of pixels with a float array of samples.
*
* @param x
* the X coordinate of the area of pixels.
* @param y
* the Y coordinate of the area of pixels.
* @param w
* the width of the area of pixels.
* @param h
* the height of the area of pixels.
* @param b
* the specified band.
* @param fArray
* the float array of samples.
*/
public void setSamples(int x, int y, int w, int h, int b, float fArray[]) {
sampleModel.setSamples(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, b,
fArray, dataBuffer);
}
/**
* Sets the samples for the specified band and the specified rectangular
* area of pixels with a double array of samples.
*
* @param x
* the X coordinate of the area of pixels.
* @param y
* the Y coordinate of the area of pixels.
* @param w
* the width of the area of pixels.
* @param h
* the height of the area of pixels.
* @param b
* the specified band.
* @param dArray
* the double array of samples.
*/
public void setSamples(int x, int y, int w, int h, int b, double dArray[]) {
sampleModel.setSamples(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h, b,
dArray, dataBuffer);
}
/**
* Sets the sample for the specified band and the specified pixel with an
* integer sample.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param b
* the specified band.
* @param s
* the sample to be set.
*/
public void setSample(int x, int y, int b, int s) {
sampleModel.setSample(x - sampleModelTranslateX, y - sampleModelTranslateY, b, s,
dataBuffer);
}
/**
* Sets the sample for the specified band and the specified pixel with a
* float sample.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param b
* the specified band.
* @param s
* the sample to be set.
*/
public void setSample(int x, int y, int b, float s) {
sampleModel.setSample(x - sampleModelTranslateX, y - sampleModelTranslateY, b, s,
dataBuffer);
}
/**
* Sets the sample for the specified band and the specified pixel with an
* integer sample.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param b
* the specified band.
* @param s
* the sample to be set.
*/
public void setSample(int x, int y, int b, double s) {
sampleModel.setSample(x - sampleModelTranslateX, y - sampleModelTranslateY, b, s,
dataBuffer);
}
}
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