/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* Copyright (c) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.libraries.pixie.wmf.records;
import org.pentaho.reporting.libraries.pixie.wmf.MfRecord;
import org.pentaho.reporting.libraries.pixie.wmf.MfType;
import org.pentaho.reporting.libraries.pixie.wmf.WmfFile;
import org.pentaho.reporting.libraries.pixie.wmf.bitmap.DIBReader;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
/**
* The StretchBlt function copies a bitmap from a source rectangle into a destination rectangle, stretching or
* compressing the bitmap to fit the dimensions of the destination rectangle, if necessary. The system stretches or
* compresses the bitmap according to the stretching mode currently set in the destination device context.
* <p/>
* RasterOperations are ignored ..
*/
public class MfCmdDibStretchBlt extends MfCmd {
// private static final int RECORD_BASE_SIZE = 10;
private static final int POS_DIB = 10;
private static final int POS_OPERATION = 0;
private static final int POS_SRC_HEIGHT = 2;
private static final int POS_SRC_WIDTH = 3;
private static final int POS_SRC_Y = 4;
private static final int POS_SRC_X = 5;
private static final int POS_DST_HEIGHT = 6;
private static final int POS_DST_WIDTH = 7;
private static final int POS_DST_Y = 8;
private static final int POS_DST_X = 9;
private BufferedImage image;
private int rop;
private int srcX;
private int srcY;
private int srcW;
private int srcH;
private int destX;
private int destY;
private int destW;
private int destH;
private int scaled_destX;
private int scaled_destY;
private int scaled_destW;
private int scaled_destH;
public MfCmdDibStretchBlt() {
}
/**
* Replays the command on the given WmfFile.
*
* @param file the meta file.
*/
public void replay( final WmfFile file ) {
file.getGraphics2D().drawImage( image, srcX, srcY, srcW, srcH,
scaled_destX, scaled_destY, scaled_destW, scaled_destH, null );
}
/**
* Creates a empty unintialized copy of this command implementation.
*
* @return a new instance of the command.
*/
public MfCmd getInstance() {
return new MfCmdDibStretchBlt();
}
/**
* Reads the function identifier. Every record type is identified by a function number corresponding to one of the
* Windows GDI functions used.
*
* @return the function identifier.
*/
public int getFunction() {
return MfType.STRETCH_BLT;
}
public int getROP() {
return rop;
}
public void setROP( final int rop ) {
this.rop = rop;
}
/**
* Reads the command data from the given record and adjusts the internal parameters according to the data parsed.
* <p/>
* After the raw record was read from the datasource, the record is parsed by the concrete implementation.
*
* @param record the raw data that makes up the record.
*/
public void setRecord( final MfRecord record ) {
final int rop = record.getLongParam( POS_OPERATION );
final int ySrc = record.getParam( POS_SRC_Y );
final int xSrc = record.getParam( POS_SRC_X );
final int srcH = record.getParam( POS_SRC_HEIGHT );
final int srcW = record.getParam( POS_SRC_WIDTH );
final int destH = record.getParam( POS_DST_HEIGHT );
final int destW = record.getParam( POS_DST_WIDTH );
final int yDest = record.getParam( POS_DST_Y );
final int xDest = record.getParam( POS_DST_X );
try {
final DIBReader reader = new DIBReader();
setImage( reader.setRecord( record, POS_DIB ) );
} catch ( IOException ioe ) {
// failed to load the bitmap ..
}
setROP( rop );
setSrcRect( xSrc, ySrc, srcH, srcW );
setDestRect( xDest, yDest, destH, destW );
}
/**
* Creates a new record based on the data stored in the MfCommand.
*
* @return the created record.
*/
public MfRecord getRecord()
throws RecordCreationException {
throw new RecordCreationException( "StretchBlt is not supported" );
}
public BufferedImage getImage() {
return image;
}
public void setImage( final BufferedImage image ) {
this.image = image;
}
public String toString() {
final StringBuffer b = new StringBuffer();
b.append( "[STRETCH_BLT] rop=" );
b.append( getROP() );
b.append( " srcRect=" );
b.append( getSrcRect() );
b.append( " destRect=" );
b.append( getDestRect() );
return b.toString();
}
public void setSrcRect( final int x, final int y, final int w, final int h ) {
this.srcX = x;
this.srcY = y;
this.srcW = w;
this.srcH = h;
scaleXChanged();
scaleYChanged();
}
public void setDestRect( final int x, final int y, final int w, final int h ) {
this.destX = x;
this.destY = y;
this.destW = w;
this.destH = h;
scaleXChanged();
scaleYChanged();
}
public Rectangle getSrcRect() {
return new Rectangle( srcX, srcY, srcW, srcH );
}
public Rectangle getDestRect() {
return new Rectangle( destX, destY, destW, destH );
}
public Rectangle getScaledDestRect() {
return new Rectangle( scaled_destX, scaled_destY, scaled_destW, scaled_destH );
}
/**
* A callback function to inform the object, that the x scale has changed and the internal coordinate values have to
* be adjusted.
*/
protected void scaleXChanged() {
scaled_destX = getScaledX( destX );
scaled_destW = getScaledX( destW );
}
/**
* A callback function to inform the object, that the y scale has changed and the internal coordinate values have to
* be adjusted.
*/
protected void scaleYChanged() {
scaled_destY = getScaledY( destY );
scaled_destH = getScaledY( destH );
}
}