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Java™ Binding for the OpenGL® API
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/**
* 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;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.security.AccessController;
import java.security.PrivilegedAction;
import com.jogamp.opengl.GLException;
import com.jogamp.common.util.IntObjectHashMap;
import com.jogamp.graph.font.Font;
import com.jogamp.graph.font.FontSet;
import com.jogamp.graph.font.FontFactory;
public class JavaFontLoader implements FontSet {
// FIXME: Add cache size to limit memory usage
private static final IntObjectHashMap fontMap = new IntObjectHashMap();
private static final FontSet fontLoader = new JavaFontLoader();
public static FontSet get() {
return fontLoader;
}
final static String availableFontFileNames[] =
{
/* 00 */ "LucidaBrightRegular.ttf",
/* 01 */ "LucidaBrightItalic.ttf",
/* 02 */ "LucidaBrightDemiBold.ttf",
/* 03 */ "LucidaBrightDemiItalic.ttf",
/* 04 */ "LucidaSansRegular.ttf",
/* 05 */ "LucidaSansDemiBold.ttf",
/* 06 */ "LucidaTypewriterRegular.ttf",
/* 07 */ "LucidaTypewriterBold.ttf",
};
final String javaFontPath;
private JavaFontLoader() {
final String javaHome = AccessController.doPrivileged(new PrivilegedAction() {
@Override
public String run() {
return System.getProperty("java.home");
}
});
if(null != javaHome) {
javaFontPath = javaHome + "/lib/fonts/";
} else {
javaFontPath = null;
}
}
static boolean is(final int bits, final int bit) {
return 0 != ( bits & bit ) ;
}
@Override
public Font getDefault() throws IOException {
return get(FAMILY_REGULAR, 0) ; // Sans Serif Regular
}
@Override
public Font get(final int family, final int style) throws IOException {
if(null == javaFontPath) {
throw new GLException("java font path undefined");
}
Font font = (Font)fontMap.get( ( family << 8 ) | style );
if (font != null) {
return font;
}
// 1st process Sans Serif (2 fonts)
if( is(style, STYLE_SERIF) ) {
if( is(style, STYLE_BOLD) ) {
font = abspath(availableFontFileNames[5], family, style);
} else {
font = abspath(availableFontFileNames[4], family, style);
}
if(null != font) {
fontMap.put( ( family << 8 ) | style, font );
}
return font;
}
// Serif Fonts ..
switch (family) {
case FAMILY_LIGHT:
case FAMILY_MEDIUM:
case FAMILY_CONDENSED:
case FAMILY_REGULAR:
if( is(style, STYLE_BOLD) ) {
if( is(style, STYLE_ITALIC) ) {
font = abspath(availableFontFileNames[3], family, style);
} else {
font = abspath(availableFontFileNames[2], family, style);
}
} else if( is(style, STYLE_ITALIC) ) {
font = abspath(availableFontFileNames[1], family, style);
} else {
font = abspath(availableFontFileNames[0], family, style);
}
break;
case FAMILY_MONOSPACED:
if( is(style, STYLE_BOLD) ) {
font = abspath(availableFontFileNames[7], family, style);
} else {
font = abspath(availableFontFileNames[6], family, style);
}
break;
}
return font;
}
Font abspath(final String fname, final int family, final int style) throws IOException {
try {
final Font f = abspathImpl(javaFontPath+fname, family, style);
if(null != f) {
return f;
}
throw new IOException (String.format("Problem loading font %s, file %s%s", fname, javaFontPath, fname));
} catch (final IOException ioe) {
throw new IOException(String.format("Problem loading font %s, file %s%s", fname, javaFontPath, fname), ioe);
}
}
private Font abspathImpl(final String fname, final int family, final int style) throws IOException {
final Exception[] privErr = { null };
final int[] streamLen = { 0 };
final InputStream stream = AccessController.doPrivileged(new PrivilegedAction() {
@Override
public InputStream run() {
try {
final File file = new File(fname);
streamLen[0] = (int) file.length();
return new BufferedInputStream(new FileInputStream(file), streamLen[0]);
} catch (final Exception e) {
privErr[0] = e;
return null;
}
} } );
if( null != privErr[0] ) {
throw new IOException(privErr[0]);
}
if(null != stream) {
final Font f= FontFactory.get ( stream, streamLen[0], true ) ;
if(null != f) {
fontMap.put( ( family << 8 ) | style, f );
return f;
}
}
return null;
}
}