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/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Batik" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
[email protected].
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation. For more information on the
Apache Software Foundation, please see .
*/
package jogamp.graph.font.typecast.ot.table;
import java.io.DataInput;
import java.io.IOException;
/**
* @version $Id: GlyfCompositeComp.java,v 1.3 2010-08-10 11:41:55 davidsch Exp $
* @author David Schweinsberg
*/
public class GlyfCompositeComp {
public static final short ARG_1_AND_2_ARE_WORDS = 0x0001;
public static final short ARGS_ARE_XY_VALUES = 0x0002;
public static final short ROUND_XY_TO_GRID = 0x0004;
public static final short WE_HAVE_A_SCALE = 0x0008;
public static final short MORE_COMPONENTS = 0x0020;
public static final short WE_HAVE_AN_X_AND_Y_SCALE = 0x0040;
public static final short WE_HAVE_A_TWO_BY_TWO = 0x0080;
public static final short WE_HAVE_INSTRUCTIONS = 0x0100;
public static final short USE_MY_METRICS = 0x0200;
private final int _firstIndex;
private final int _firstContour;
private short _argument1;
private short _argument2;
private final int _flags;
private final int _glyphIndex;
private double _xscale = 1.0;
private double _yscale = 1.0;
private double _scale01 = 0.0;
private double _scale10 = 0.0;
private int _xtranslate = 0;
private int _ytranslate = 0;
private int _point1 = 0;
private int _point2 = 0;
protected GlyfCompositeComp(final int firstIndex, final int firstContour, final DataInput di)
throws IOException {
_firstIndex = firstIndex;
_firstContour = firstContour;
_flags = di.readUnsignedShort();
_glyphIndex = di.readUnsignedShort();
// Get the arguments as just their raw values
if ((_flags & ARG_1_AND_2_ARE_WORDS) != 0) {
_argument1 = di.readShort();
_argument2 = di.readShort();
} else {
_argument1 = di.readByte();
_argument2 = di.readByte();
}
// Assign the arguments according to the flags
if ((_flags & ARGS_ARE_XY_VALUES) != 0) {
_xtranslate = _argument1;
_ytranslate = _argument2;
} else {
_point1 = _argument1;
_point2 = _argument2;
}
// Get the scale values (if any)
if ((_flags & WE_HAVE_A_SCALE) != 0) {
final int i = di.readShort();
_xscale = _yscale = (double) i / (double) 0x4000;
} else if ((_flags & WE_HAVE_AN_X_AND_Y_SCALE) != 0) {
short i = di.readShort();
_xscale = (double) i / (double) 0x4000;
i = di.readShort();
_yscale = (double) i / (double) 0x4000;
} else if ((_flags & WE_HAVE_A_TWO_BY_TWO) != 0) {
int i = di.readShort();
_xscale = (double) i / (double) 0x4000;
i = di.readShort();
_scale01 = (double) i / (double) 0x4000;
i = di.readShort();
_scale10 = (double) i / (double) 0x4000;
i = di.readShort();
_yscale = (double) i / (double) 0x4000;
}
}
public int getFirstIndex() {
return _firstIndex;
}
public int getFirstContour() {
return _firstContour;
}
public short getArgument1() {
return _argument1;
}
public short getArgument2() {
return _argument2;
}
public int getFlags() {
return _flags;
}
public int getGlyphIndex() {
return _glyphIndex;
}
public double getScale01() {
return _scale01;
}
public double getScale10() {
return _scale10;
}
public double getXScale() {
return _xscale;
}
public double getYScale() {
return _yscale;
}
public int getXTranslate() {
return _xtranslate;
}
public int getYTranslate() {
return _ytranslate;
}
/**
* Transforms an x-coordinate of a point for this component.
* @param x The x-coordinate of the point to transform
* @param y The y-coordinate of the point to transform
* @return The transformed x-coordinate
*/
public int scaleX(final int x, final int y) {
return (int)(x * _xscale + y * _scale10);
}
/**
* Transforms a y-coordinate of a point for this component.
* @param x The x-coordinate of the point to transform
* @param y The y-coordinate of the point to transform
* @return The transformed y-coordinate
*/
public int scaleY(final int x, final int y) {
return (int)(x * _scale01 + y * _yscale);
}
}
