/*
* 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.*;
import java.awt.geom.GeneralPath;
/**
* PolyPolygon, is a list of polygons, for filled polygons SetPolyFillMode affects how the polygon is filled. the number
* of polygons is recorded, followed by the number of points in each polygon, and then a long sequence of all the points
* of all the polygons.
*/
public class MfCmdPolyPolygon extends MfCmd {
private Object[] points_x; // contains int[]
private Object[] points_y; // contains int[]
private Object[] scaled_points_x; // contains int[]
private Object[] scaled_points_y; // contains int[]
private int polycount;
public MfCmdPolyPolygon() {
}
/**
* Replays the command on the given WmfFile.
*
* @param file the meta file.
*/
public void replay( final WmfFile file ) {
final Graphics2D graph = file.getGraphics2D();
final MfDcState state = file.getCurrentState();
final GeneralPath genPath = new GeneralPath();
for ( int i = 0; i < polycount; i++ ) {
final int[] pointsX = getScaledPointsX( i );
final int[] pointsY = getScaledPointsY( i );
final Polygon polygon = new Polygon( pointsX, pointsY, pointsX.length );
genPath.append( polygon, false );
}
if ( state.getLogBrush().isVisible() ) {
state.preparePaint();
graph.fill( genPath );
state.postPaint();
}
if ( state.getLogPen().isVisible() ) {
state.prepareDraw();
graph.draw( genPath );
state.postDraw();
}
}
/**
* Creates a empty unintialized copy of this command implementation.
*
* @return a new instance of the command.
*/
public MfCmd getInstance() {
return new MfCmdPolyPolygon();
}
/**
* 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.POLY_POLYGON;
}
public String toString() {
final StringBuffer b = new StringBuffer();
b.append( "[POLYPOLYGON] polycount=" );
b.append( getPolygonCount() );
b.append( '\n' );
for ( int p = 0; p < getPolygonCount(); p++ ) {
b.append( " Polygon " );
b.append( p );
final int[] points_x = getPointsX( p );
final int[] points_y = getPointsY( p );
final int l = points_x.length;
for ( int i = 0; i < l; i++ ) {
if ( i != 0 ) {
b.append( ',' );
}
b.append( " (" );
b.append( points_x[ i ] );
b.append( ',' );
b.append( points_y[ i ] );
b.append( ") " );
}
b.append( '\n' );
}
return b.toString();
}
/**
* 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 numberOfPolygons = record.getParam( 0 );
//Log.debug("Number Of Polygons: " + numberOfPolygons);
final int[] count = new int[ numberOfPolygons ];
final Object[] poly_points_x = new Object[ numberOfPolygons ];
final Object[] poly_points_y = new Object[ numberOfPolygons ];
// read the length of each polygon
for ( int i = 0; i < numberOfPolygons; i++ ) {
final int numberOfPointsInPolygon = record.getParam( 1 + i );
//Log.debug("Number Of points in polygon: " + numberOfPointsInPolygon);
count[ i ] = numberOfPointsInPolygon;
}
// getLength?
//Log.debug("record.getLength(): " + (record.getLength() / 2));
// for each polygon, read the points ...
int readPosition = 1 + numberOfPolygons;
for ( int i = 0; i < numberOfPolygons; i++ ) {
// Position of the points depends on the number of points
// of the previous polygons
final int numberOfPoints = count[ i ];
final int[] points_x = new int[ numberOfPoints ];
final int[] points_y = new int[ numberOfPoints ];
// read position is after numPolygonPointsRead + noOfPolygons + 1 (for the first parameter)
for ( int point = 0; point < numberOfPoints; point += 1 ) {
points_x[ point ] = record.getParam( readPosition );
readPosition += 1;
points_y[ point ] = record.getParam( readPosition );
readPosition += 1;
}
poly_points_x[ i ] = points_x;
poly_points_y[ i ] = points_y;
}
setPolygonCount( numberOfPolygons );
setPoints( poly_points_x, poly_points_y );
}
/**
* Creates a new record based on the data stored in the MfCommand.
*
* @return the created record.
*/
public MfRecord getRecord()
throws RecordCreationException {
final int numberOfPolygons = getPolygonCount();
int pointsTotal = 0;
for ( int i = 0; i < numberOfPolygons; i++ ) {
pointsTotal += getPointsX( i ).length;
}
final MfRecord record = new MfRecord( 1 + numberOfPolygons + pointsTotal * 2 );
record.setParam( 0, numberOfPolygons );
int numberOfPointsRead = 0;
for ( int i = 0; i < numberOfPolygons; i++ ) {
final int[] x_points = getPointsX( i );
final int[] y_points = getPointsY( i );
final int numberOfPointsInPolygon = x_points.length;
record.setParam( 1 + i, numberOfPointsInPolygon );
final int readPos = numberOfPointsRead * 2 + numberOfPolygons + 1;
for ( int j = 0; j < numberOfPointsInPolygon; j++ ) {
record.setParam( ( readPos + 1 ) + j * 2, x_points[ i ] );
record.setParam( ( readPos + 2 ) + j * 2, y_points[ i ] );
}
numberOfPointsRead += numberOfPointsInPolygon;
}
return record;
}
public void setPoints( final Object[] points_x, final Object[] points_y ) {
this.points_x = points_x;
this.points_y = points_y;
scaleXChanged();
scaleYChanged();
}
public int[] getPointsX( final int polygon ) {
return (int[]) points_x[ polygon ];
}
public int[] getPointsY( final int polygon ) {
return (int[]) points_y[ polygon ];
}
public int[] getScaledPointsX( final int polygon ) {
return (int[]) scaled_points_x[ polygon ];
}
public int[] getScaledPointsY( final int polygon ) {
return (int[]) scaled_points_y[ polygon ];
}
public void setPolygonCount( final int count ) {
this.polycount = count;
}
public int getPolygonCount() {
return polycount;
}
/**
* 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() {
if ( scaled_points_x == null ) {
scaled_points_x = new Object[ points_x.length ];
}
if ( scaled_points_x.length < points_x.length ) {
scaled_points_x = new Object[ points_x.length ];
}
for ( int i = 0; i < polycount; i++ ) {
scaled_points_x[ i ] = applyScaleX( (int[]) points_x[ i ], (int[]) scaled_points_x[ i ] );
}
}
/**
* 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() {
if ( scaled_points_y == null ) {
scaled_points_y = new Object[ points_y.length ];
}
if ( scaled_points_y.length < points_y.length ) {
scaled_points_y = new Object[ points_y.length ];
}
for ( int i = 0; i < polycount; i++ ) {
scaled_points_y[ i ] = applyScaleY( (int[]) points_y[ i ], (int[]) scaled_points_y[ i ] );
}
}
}