/*
============================================================================
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
apache@apache.org.
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 <http://www.apache.org/>.
*/
package jogamp.graph.font.typecast.ot;
import jogamp.graph.font.typecast.ot.table.Charstring;
import jogamp.graph.font.typecast.ot.table.CharstringType2;
import jogamp.graph.font.typecast.ot.table.GlyfDescript;
import jogamp.graph.font.typecast.ot.table.GlyphDescription;
import jogamp.graph.font.typecast.t2.T2Interpreter;
import com.jogamp.opengl.math.geom.AABBox;
/**
* An individual glyph within a font.
* @version $Id: Glyph.java,v 1.3 2007-02-21 12:23:54 davidsch Exp $
* @author <a href="mailto:davidsch@dev.java.net">David Schweinsberg</a>, Sven Gothel
*/
public final class OTGlyph {
private final short _leftSideBearing;
private final int _advanceWidth;
private Point[] _points;
AABBox _bbox;
/**
* Construct a Glyph from a TrueType outline described by
* a GlyphDescription.
* @param cs The Charstring describing the glyph.
* @param lsb The Left Side Bearing.
* @param advance The advance width.
*/
public OTGlyph(final GlyphDescription gd, final short lsb, final int advance) {
_leftSideBearing = lsb;
_advanceWidth = advance;
describe(gd);
}
/**
* Construct a Glyph from a PostScript outline described by a Charstring.
* @param cs The Charstring describing the glyph.
* @param lsb The Left Side Bearing.
* @param advance The advance width.
*/
public OTGlyph(final Charstring cs, final short lsb, final int advance) {
_leftSideBearing = lsb;
_advanceWidth = advance;
if (cs instanceof CharstringType2) {
final T2Interpreter t2i = new T2Interpreter();
_points = t2i.execute((CharstringType2) cs);
} else {
//throw unsupported charstring type
}
}
public final void clearPointData() {
_points = null;
}
public final AABBox getBBox() {
return _bbox;
}
public final int getAdvanceWidth() {
return _advanceWidth;
}
public final short getLeftSideBearing() {
return _leftSideBearing;
}
public final Point getPoint(final int i) {
return _points[i];
}
public final int getPointCount() {
return null != _points ? _points.length : 0;
}
/**
* @param factor a 16.16 fixed value
public void scale(final int factor) {
for (int i = 0; i < _points.length; i++) {
//points[i].x = ( points[i].x * factor ) >> 6;
//points[i].y = ( points[i].y * factor ) >> 6;
_points[i].x = ((_points[i].x<<10) * factor) >> 26;
_points[i].y = ((_points[i].y<<10) * factor) >> 26;
}
_leftSideBearing = (short)(( _leftSideBearing * factor) >> 6);
_advanceWidth = (_advanceWidth * factor) >> 6;
}
*/
/**
* Set the points of a glyph from the GlyphDescription
*/
private final void describe(final GlyphDescription gd) {
int endPtIndex = 0;
_points = new Point[gd.getPointCount() /* + 2 */ ];
for (int i = 0; i < gd.getPointCount(); i++) {
final boolean endPt = gd.getEndPtOfContours(endPtIndex) == i;
if (endPt) {
endPtIndex++;
}
_points[i] = new Point(
gd.getXCoordinate(i),
gd.getYCoordinate(i),
(gd.getFlags(i) & GlyfDescript.onCurve) != 0,
endPt);
}
// Append the origin and advanceWidth points (n & n+1)
// _points[gd.getPointCount()] = new Point(0, 0, true, true);
// _points[gd.getPointCount()+1] = new Point(_advanceWidth, 0, true, true);
_bbox = new AABBox(gd.getXMinimum(), gd.getYMinimum(), 0, gd.getXMaximum(), gd.getYMaximum(), 0);
}
}