/*

 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.font;

import java.awt.geom.GeneralPath;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

class NullFontScaler extends FontScaler {

    NullFontScaler() {}

    public NullFontScaler(Font2D font, int indexInCollection,

        boolean supportsCJK, int filesize) {}

    StrikeMetrics getFontMetrics(long pScalerContext) {

        return new StrikeMetrics(0xf0,0xf0,0xf0,0xf0,0xf0,0xf0,

        0xf0,0xf0,0xf0,0xf0);

    }

    float getGlyphAdvance(long pScalerContext, int glyphCode) {

        return 0.0f;

    }

    void getGlyphMetrics(long pScalerContext, int glyphCode,

        Point2D.Float metrics) {

        metrics.x = 0;

        metrics.y = 0;

    }

    Rectangle2D.Float getGlyphOutlineBounds(long pContext, int glyphCode) {

        return new Rectangle2D.Float(0, 0, 0, 0);

    }

    GeneralPath getGlyphOutline(long pScalerContext, int glyphCode,

        float x, float y) {

        return new GeneralPath();

    }

    GeneralPath getGlyphVectorOutline(long pScalerContext, int[] glyphs,

        int numGlyphs, float x, float y) {

        return new GeneralPath();

    }

    long getLayoutTableCache() {return 0L;}

    long createScalerContext(double[] matrix, int aa,

        int fm, float boldness, float italic, boolean disableHinting) {

        return getNullScalerContext();

    }

    void invalidateScalerContext(long ppScalerContext) {

        //nothing to do

    }

    int getNumGlyphs() throws FontScalerException {

        return 1;

    }

    int getMissingGlyphCode() throws FontScalerException {

        return 0;

    }

    int getGlyphCode(char charCode) throws FontScalerException {

        return 0;

    }

    long getUnitsPerEm() {

        return 2048;

    }

    Point2D.Float getGlyphPoint(long pScalerContext,

                                int glyphCode, int ptNumber) {

        return null;

    }

    /* Ideally NullFontScaler should not have native code.

       However, at this moment we need these methods to be native because:

         - glyph cache code assumes null pointers to GlyphInfo structures

         - FileFontStrike needs native context

    */

    static native long getNullScalerContext();

    native long getGlyphImage(long pScalerContext, int glyphCode);

}