/*
* 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.MfDcState;
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 java.awt.*;
/**
* Prints the given string. That record is as weird as everything in windows. First parameter is the string length, then
* follows the string and finally the x and y coordinates (in that order) where to print the string.
*/
public class MfCmdTextOut extends MfCmd {
private int x;
private int y;
private String text;
private int count;
private int scaled_x;
private int scaled_y;
public MfCmdTextOut() {
}
/**
* Replays the command on the given WmfFile.
*
* @param file the meta file.
*/
public void replay( final WmfFile file ) {
final Point p = getScaledDestination();
final int x = p.x;
final int y = p.y;
final Graphics2D graphics = file.getGraphics2D();
final MfDcState state = file.getCurrentState();
state.prepareDrawText();
graphics.drawString( text, x, y );
state.postDrawText();
}
/**
* Creates a empty unintialized copy of this command implementation.
*
* @return a new instance of the command.
*/
public MfCmd getInstance() {
return new MfCmdTextOut();
}
/**
* 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.TEXT_OUT;
}
/**
* 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 count = record.getParam( 0 );
final byte[] text = new byte[ count ];
for ( int i = 0; i < count; i++ ) {
text[ i ] = (byte) record.getByte( MfRecord.RECORD_HEADER_SIZE + 2 + i );
}
final String sText = new String( text );
final int y = record.getParam( (int) ( Math.ceil( count / 2 ) + 1 ) );
final int x = record.getParam( (int) ( Math.ceil( count / 2 ) + 2 ) );
setCount( count );
setDestination( x, y );
setText( sText );
}
/**
* Creates a new record based on the data stored in the MfCommand.
*
* @return the created record.
*/
public MfRecord getRecord()
throws RecordCreationException {
final String text = getText();
final int parCntText = (int) Math.ceil( text.length() / 2 );
final MfRecord record = new MfRecord( parCntText + 3 );
record.setParam( 0, text.length() );
final byte[] textRaw = text.getBytes();
for ( int i = 0; i < count; i++ ) {
record.setByte( MfRecord.RECORD_HEADER_SIZE + 2 + i, textRaw[ i ] );
}
final Point dest = getDestination();
record.setParam( (int) ( Math.ceil( count / 2 ) + 1 ), dest.y );
record.setParam( (int) ( Math.ceil( count / 2 ) + 2 ), dest.x );
return record;
}
public String toString() {
final StringBuffer b = new StringBuffer();
b.append( "[TEXT_OUT] text=" );
b.append( getText() );
b.append( " destination=" );
b.append( getDestination() );
b.append( " count=" );
b.append( getCount() );
return b.toString();
}
public void setDestination( final int x, final int y ) {
this.x = x;
this.y = y;
scaleXChanged();
scaleYChanged();
}
public Point getDestination() {
return new Point( x, y );
}
public void setText( final String text ) {
this.text = text;
}
public String getText() {
return text;
}
public int getCount() {
return count;
}
public void setCount( final int count ) {
this.count = count;
}
public Point getScaledDestination() {
return new Point( scaled_x, scaled_y );
}
/**
* 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_x = getScaledX( x );
}
/**
* 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_y = getScaledY( y );
}
}