/*
* 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 java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.IOException;
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;
/**
* The StretchDIBits function copies the color data for a rectangle of pixels in a DIB to
* the specified destination rectangle. If the destination rectangle is larger than the
* source rectangle, this function stretches the rows and columns of color data to fit the
* destination rectangle. If the destination rectangle is smaller than the source
* rectangle, this function compresses the rows and columns by using the specified raster
* operation.
*/
public class MfCmdStretchDibits extends MfCmd
{
// private static final int RECORD_BASE_SIZE = 11;
private static final int POS_ROP = 0;
private static final int POS_USAGE = 2;
private static final int POS_SRC_H = 3;
private static final int POS_SRC_W = 4;
private static final int POS_SRC_Y = 5;
private static final int POS_SRC_X = 6;
private static final int POS_DST_H = 7;
private static final int POS_DST_W = 8;
private static final int POS_DST_Y = 9;
private static final int POS_DST_X = 10;
private static final int POS_DIB = 11;
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 usage;
private int scaled_srcX;
private int scaled_srcY;
private int scaled_srcW;
private int scaled_srcH;
private int scaled_destX;
private int scaled_destY;
private int scaled_destW;
private int scaled_destH;
private BufferedImage image;
public MfCmdStretchDibits()
{
}
/**
* Replays the command on the given WmfFile.
*
* @param file the meta file.
*/
public void replay(final WmfFile file)
{
// not implemented ...
}
/**
* Creates a empty unintialized copy of this command implementation.
*
* @return a new instance of the command.
*/
public MfCmd getInstance()
{
return new MfCmdStretchDibits();
}
/**
* 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_DIBITS;
}
public int getROP()
{
return rop;
}
public void setROP(final int rop)
{
this.rop = rop;
}
public BufferedImage getImage()
{
return image;
}
public void setImage(final BufferedImage image)
{
this.image = image;
}
public int getUsage()
{
return usage;
}
public void setUsage(final int usage)
{
this.usage = usage;
}
/**
* 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_ROP);
final int usage = record.getParam(POS_USAGE); // This is the only parameter left, so I assume this
final int srcH = record.getParam(POS_SRC_H);
final int srcW = record.getParam(POS_SRC_W);
final int ySrc = record.getParam(POS_SRC_Y);
final int xSrc = record.getParam(POS_SRC_X);
final int destH = record.getParam(POS_DST_H);
final int destW = record.getParam(POS_DST_W);
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 ..
}
// DIB ab pos 11
setROP(rop);
setUsage(usage);
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("StretchDIBits is not implemented");
}
public String toString()
{
final StringBuffer b = new StringBuffer();
b.append("[STRETCH_DIBITS] rop=");
b.append(getROP());
b.append(" srcRect=");
b.append(getSrcRect());
b.append(" destRect=");
b.append(getDestRect());
b.append(" usage=");
b.append(getUsage());
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 getScaledSrcRect()
{
return new Rectangle(scaled_srcX, scaled_srcY, scaled_srcW, scaled_srcH);
}
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_srcX = getScaledX(srcX);
scaled_srcW = getScaledX(srcW);
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_srcY = getScaledY(srcY);
scaled_srcH = getScaledY(srcH);
scaled_destY = getScaledY(destY);
scaled_destH = getScaledY(destH);
}
}