Examples of org.pentaho.reporting.libraries.base.util.PngEncoder

Package org.pentaho.reporting.libraries.base.util

Examples of org.pentaho.reporting.libraries.base.util.PngEncoder

org.pentaho.reporting.libraries.base.util.PngEncoder
eypoint.com/ who let me develop this code on company time.

You may contact me with (probably very-much-needed) improvements, comments, and bug fixes at:

david@catcode.com

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. A copy of the GNU LGPL may be found at http://www.gnu.org/copyleft/lesser.html
@author J. David Eisenberg @version 1.5, 19 Oct 2003
CHANGES: -------- 19-Nov-2002 : CODING STYLE CHANGES ONLY (by David Gilbert for Object Refinery Limited); 19-Sep-2003 : Fix for platforms using EBCDIC (contributed by Paulo Soares); 19-Oct-2003 : Change private fields to protected fields so that PngEncoderB can inherit them (JDE) Fixed bug with calculation of nRows

        final PageDrawable pageDrawable = prc.getPageDrawable(i);
        pageDrawable.draw(g2, rect);
        g2.dispose();


        // convert to PNG ...
        final PngEncoder encoder = new PngEncoder(image, true, 0, 9);
        final byte[] data = encoder.pngEncode();


        final BufferedOutputStream out = new BufferedOutputStream
            (new FileOutputStream(fileNameFormated));
        out.write(data);
        out.close();

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        return;
      }
      final FileOutputStream fout = new FileOutputStream(f);
      try
      {
        final PngEncoder encoder = new PngEncoder();
        encoder.setCompressionLevel(6);
        encoder.setEncodeAlpha(false);
        encoder.setImage(image);
        final byte[] bytes = encoder.pngEncode();
        fout.write(bytes);
      }
      finally
      {
        fout.close();

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        final PageDrawable pageDrawable = prc.getPageDrawable(i);
        pageDrawable.draw(g2, rect);
        g2.dispose();


        // convert to PNG ...
        final PngEncoder encoder = new PngEncoder(image, true, 0, 9);
        final byte[] data = encoder.pngEncode();


        final BufferedOutputStream out = new BufferedOutputStream
            (new FileOutputStream(fileNameFormated));
        out.write(data);
        out.close();

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    {
        // quick caching ... use a weak list ...
        final WaitingImageObserver obs = new WaitingImageObserver(image);
        obs.waitImageLoaded();


        final PngEncoder encoder = new PngEncoder(image, PngEncoder.ENCODE_ALPHA, PngEncoder.FILTER_NONE, 5);
        final byte[] data = encoder.pngEncode();
        return produceFromByteArray(data);
    }

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    {
        // quick caching ... use a weak list ...
        final WaitingImageObserver obs = new WaitingImageObserver(image);
        obs.waitImageLoaded();


        final PngEncoder encoder = new PngEncoder(image, PngEncoder.ENCODE_ALPHA, PngEncoder.FILTER_NONE, 5);
        final byte[] data = encoder.pngEncode();
        return produceFromByteArray(data);
    }

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    {
        // quick caching ... use a weak list ...
        final WaitingImageObserver obs = new WaitingImageObserver(image);
        obs.waitImageLoaded();


        final PngEncoder encoder = new PngEncoder(image, PngEncoder.ENCODE_ALPHA, PngEncoder.FILTER_NONE, 5);
        final byte[] data = encoder.pngEncode();
        return produceFromByteArray(data);
    }

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    {
        // quick caching ... use a weak list ...
        final WaitingImageObserver obs = new WaitingImageObserver(image);
        obs.waitImageLoaded();


        final PngEncoder encoder = new PngEncoder(image, PngEncoder.ENCODE_ALPHA, PngEncoder.FILTER_NONE, 5);
        final byte[] data = encoder.pngEncode();
        return produceFromByteArray(data);
    }

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    // encode the image into a PNG
    // quick caching ... use a weak list ...
    final WaitingImageObserver obs = new WaitingImageObserver(image);
    obs.waitImageLoaded();


    final PngEncoder encoder = new PngEncoder(image,
        PngEncoder.ENCODE_ALPHA, PngEncoder.FILTER_NONE, 5);
    final byte[] data = encoder.pngEncode();


    // write the encoded picture ...
    final ContentItem dataFile = dataLocation.createItem
        (dataNameGenerator.generateName("picture", "image/png"));

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    {
        // quick caching ... use a weak list ...
        final WaitingImageObserver obs = new WaitingImageObserver(image);
        obs.waitImageLoaded();


        final PngEncoder encoder = new PngEncoder(image, PngEncoder.ENCODE_ALPHA, PngEncoder.FILTER_NONE, 5);
        final byte[] data = encoder.pngEncode();
        return produceFromByteArray(data);
    }

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