/**
* Copyright 2011 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, 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.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS 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 JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, 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.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.graph.font.typecast;
import com.jogamp.common.util.IntIntHashMap;
import com.jogamp.graph.curve.OutlineShape;
import com.jogamp.graph.font.Font;
import com.jogamp.opengl.math.geom.AABBox;
public final class TypecastGlyph implements Font.Glyph {
public static final class Advance
{
private final Font font;
private final float advance;
private final IntIntHashMap size2advanceI = new IntIntHashMap();
public Advance(final Font font, final float advance)
{
this.font = font;
this.advance = advance;
size2advanceI.setKeyNotFoundValue(0);
}
public final void reset() {
size2advanceI.clear();
}
public final Font getFont() { return font; }
public final float getScale(final float pixelSize)
{
return this.font.getMetrics().getScale(pixelSize);
}
public final void add(final float advance, final float size)
{
size2advanceI.put(Float.floatToIntBits(size), Float.floatToIntBits(advance));
}
public final float get(final float pixelSize, final boolean useFrationalMetrics)
{
final int sI = Float.floatToIntBits(pixelSize);
final int aI = size2advanceI.get(sI);
if( 0 != aI ) {
return Float.intBitsToFloat(aI);
}
final float a;
if ( useFrationalMetrics ) {
a = this.advance * getScale(pixelSize);
} else {
// a = Math.ceil(this.advance * getScale(pixelSize));
a = Math.round(this.advance * getScale(pixelSize)); // TODO: check whether ceil should be used instead?
}
size2advanceI.put(sI, Float.floatToIntBits(a));
return a;
}
@Override
public final String toString()
{
return "\nAdvance:"+
"\n advance: "+this.advance+
"\n advances: \n"+size2advanceI;
}
}
public static final class Metrics
{
private final AABBox bbox;
private final Advance advance;
public Metrics(final Font font, final AABBox bbox, final float advance)
{
this.bbox = bbox;
this.advance = new Advance(font, advance);
}
public final void reset() {
advance.reset();
}
public final Font getFont() { return advance.getFont(); }
public final float getScale(final float pixelSize)
{
return this.advance.getScale(pixelSize);
}
public final AABBox getBBox()
{
return this.bbox;
}
public final void addAdvance(final float advance, final float size)
{
this.advance.add(advance, size);
}
public final float getAdvance(final float pixelSize, final boolean useFrationalMetrics)
{
return this.advance.get(pixelSize, useFrationalMetrics);
}
@Override
public final String toString()
{
return "\nMetrics:"+
"\n bbox: "+this.bbox+
this.advance;
}
}
public static final short INVALID_ID = (short)((1 << 16) - 1);
public static final short MAX_ID = (short)((1 << 16) - 2);
private final char symbol;
private final OutlineShape shape; // in EM units
private final short id;
private final Metrics metrics;
protected TypecastGlyph(final Font font, final char symbol, final short id, final AABBox bbox, final int advance, final OutlineShape shape) {
this.symbol = symbol;
this.shape = shape;
this.id = id;
this.metrics = new Metrics(font, bbox, advance);
}
@Override
public final Font getFont() {
return this.metrics.getFont();
}
@Override
public final char getSymbol() {
return this.symbol;
}
final AABBox getBBoxUnsized() {
return this.metrics.getBBox();
}
@Override
public final AABBox getBBox() {
return this.metrics.getBBox();
}
public final Metrics getMetrics() {
return this.metrics;
}
@Override
public final short getID() {
return this.id;
}
@Override
public final float getScale(final float pixelSize) {
return this.metrics.getScale(pixelSize);
}
@Override
public final AABBox getBBox(final AABBox dest, final float pixelSize, final float[] tmpV3) {
return dest.copy(getBBox()).scale(getScale(pixelSize), tmpV3);
}
protected final void addAdvance(final float advance, final float size) {
this.metrics.addAdvance(advance, size);
}
@Override
public final float getAdvance(final float pixelSize, final boolean useFrationalMetrics) {
return this.metrics.getAdvance(pixelSize, useFrationalMetrics);
}
@Override
public final OutlineShape getShape() {
return this.shape;
}
@Override
public final int hashCode() {
// 31 * x == (x << 5) - x
final int hash = 31 + getFont().getName(Font.NAME_UNIQUNAME).hashCode();
return ((hash << 5) - hash) + id;
}
}