com.igormaznitsa.jhexed.values.HexSVGImageValue.java Source code

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Here is the source code for com.igormaznitsa.jhexed.values.HexSVGImageValue.java

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/* 
 * Copyright 2014 Igor Maznitsa (http://www.igormaznitsa.com).
 *
 * 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.igormaznitsa.jhexed.values;

import com.igormaznitsa.jhexed.renders.svg.SVGImage;
import java.awt.*;
import java.awt.geom.Path2D;
import java.awt.image.BufferedImage;
import java.io.*;
import org.apache.commons.io.IOUtils;

public class HexSVGImageValue extends HexFieldValue {

    private SVGImage image;
    private Image prerasterized;

    private HexSVGImageValue(final HexSVGImageValue val) {
        super(val);
        this.image = val.image;
        this.prerasterized = val.prerasterized;
    }

    public HexSVGImageValue(final String name, final String comment, final SVGImage image, final int index) {
        super(name, comment, index);
        this.image = image;
    }

    public HexSVGImageValue(final InputStream in) throws IOException {
        super(in);
        final DataInputStream din = in instanceof DataInputStream ? (DataInputStream) in : new DataInputStream(in);
        final byte[] buffer = new byte[din.readInt()];
        IOUtils.readFully(in, buffer);
        this.image = new SVGImage(new ByteArrayInputStream(buffer), true);
    }

    @Override
    public HexFieldValue cloneValue() {
        return new HexSVGImageValue(this);
    }

    public SVGImage getImage() {
        return this.image;
    }

    public void setImage(final SVGImage value) {
        this.image = value;
    }

    @Override
    public void load(final HexFieldValue val) {
        super.load(val);
        this.image = ((HexSVGImageValue) val).getImage();
    }

    @Override
    public void write(final OutputStream out) throws IOException {
        out.write(TYPE_SVGIMAGE);
        super.write(out);

        final ByteArrayOutputStream imageDataBuffer = new ByteArrayOutputStream(4096);
        this.image.write(imageDataBuffer, true);
        final byte[] imageData = imageDataBuffer.toByteArray();

        final DataOutputStream dout = out instanceof DataOutputStream ? (DataOutputStream) out
                : new DataOutputStream(out);
        dout.writeInt(imageData.length);
        dout.write(imageData);
    }

    @Override
    public BufferedImage makeIcon(final int width, final int height, final Path2D shape, final boolean allowAlpha) {
        try {
            final BufferedImage img = this.image.rasterize(width, height, BufferedImage.TYPE_INT_ARGB);
            if (shape == null) {
                return img;
            } else {
                final BufferedImage result = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
                final Graphics2D g = result.createGraphics();
                g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
                g.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
                        RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
                g.setClip(makeTransformedPathForSize(width, height, shape));
                g.drawImage(img, 0, 0, null);
                g.dispose();
                return result;
            }

        } catch (Exception ex) {
            ex.printStackTrace();
            return null;
        }
    }

    @Override
    public void prerasterizeIcon(final Shape shape) {
        try {
            final Rectangle r = shape.getBounds();
            final BufferedImage img = this.image.rasterize(r.width, r.height, BufferedImage.TYPE_INT_ARGB);
            final BufferedImage result = new BufferedImage(r.width, r.height, BufferedImage.TYPE_INT_ARGB);
            final Graphics2D g = result.createGraphics();
            g.setClip(shape);
            g.drawImage(img, 0, 0, null);
            g.dispose();
            this.prerasterized = result;
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    @Override
    public Image getPrerasterized() {
        return this.prerasterized;
    }

}