/*
* 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.MfLogPalette;
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.WmfObject;
/**
* Activates the specified Palette Object. The object must be previously defined for the device context by using
* createPalette().
*/
public class MfCmdSelectPalette extends MfCmd {
private static final int RECORD_SIZE = 1;
private static final int POS_OBJECT_ID = 0;
private int objectId;
public MfCmdSelectPalette() {
}
/**
* Replays the command on the given WmfFile.
*
* @param file the meta file.
*/
public void replay( final WmfFile file ) {
final WmfObject object = file.getObject( objectId );
if ( object == null ) {
throw new NullPointerException();
}
switch( object.getType() ) {
case WmfObject.OBJ_PALETTE:
file.getCurrentState().setLogPalette( (MfLogPalette) object );
break;
default:
throw new IllegalStateException( "Object is no palette" );
}
}
/**
* Creates a empty unintialized copy of this command implementation.
*
* @return a new instance of the command.
*/
public MfCmd getInstance() {
return new MfCmdSelectPalette();
}
/**
* 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 id = record.getParam( POS_OBJECT_ID );
setObjectId( id );
}
/**
* Creates a new record based on the data stored in the MfCommand.
*
* @return the created record.
*/
public MfRecord getRecord()
throws RecordCreationException {
final MfRecord record = new MfRecord( RECORD_SIZE );
record.setParam( POS_OBJECT_ID, getObjectId() );
return record;
}
/**
* 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.SELECT_PALETTE;
}
public int getObjectId() {
return objectId;
}
public void setObjectId( final int id ) {
this.objectId = id;
}
public String toString() {
final StringBuffer b = new StringBuffer();
b.append( "[SELECT_PALETTE] object=" );
b.append( getObjectId() );
return b.toString();
}
/**
* 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() {
}
/**
* 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() {
}
}