Android Open Source - fetchheaders-android S V G External File Resolver

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License

The source code is released under:

Apache License

Java Source Code

/*
   Copyright 2013 Paul LeBeau, Cave Rock Software Ltd.
//from w  w  w .  j a  v a 2 s.  c o m
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

package com.caverock.androidsvg;

import android.graphics.Bitmap;
import android.graphics.Typeface;

import com.caverock.androidsvg.SVG.Style;

/**
 * Resolver class used by the renderer when processing Text and Image elements.
 * <p/>
 * The default behaviour is to tell AndroidSVG that the reference could not be found.
 * <p/>
 * Extend this class and override the methods if you want to customise how AndroidSVG treats font and image references.
 */

public abstract class SVGExternalFileResolver {
    /**
     * Called by renderer to resolve font references in &lt;text&gt; elements.
     * <p/>
     * Return a {@code Typeface} instance, or null if you want the renderer to ignore
     * this font and use the default Android font instead.
     * <p/>
     * Note that AndroidSVG does not attempt to cache Typeface references.  If you want
     * them cached, for speed or memory reasons, you should do so yourself.
     *
     * @param fontFamily Font family as specified in a font-family style attribute.
     * @param fontWeight Font weight as specified in a font-weight style attribute.
     * @param fontStyle  Font style as specified in a font-style style attribute.
     * @return an Android Typeface instance, or null
     */
    public Typeface resolveFont(String fontFamily, int fontWeight, String fontStyle) {
        return null;
    }

    /**
     * Called by renderer to resolve image file references in &lt;image&gt; elements.
     * <p/>
     * Return a {@code Bitmap} instance, or null if you want the renderer to ignore
     * this image.
     * <p/>
     * Note that AndroidSVG does not attempt to cache Bitmap references.  If you want
     * them cached, for speed or memory reasons, you should do so yourself.
     *
     * @param filename the filename as provided in the xlink:href attribute of a &lt;image&gt; element.
     * @return an Android Bitmap object, or null if the image could not be found.
     */
    public Bitmap resolveImage(String filename) {
        return null;
    }

    /**
     * Called by renderer to determine whether a particular format is supported.  In particular,
     * this method is used in &lt;switch&gt; elements when processing {@code requiredFormats}
     * conditionals.
     *
     * @param mimeType A MIME type (such as "image/jpeg").
     * @return true if your {@code resolveImage()} implementation supports this file format.
     */
    public boolean isFormatSupported(String mimeType) {
        return false;
    }
}

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