pl.umk.mat.faramir.beamer.PdfRenderer.java Source code

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Here is the source code for pl.umk.mat.faramir.beamer.PdfRenderer.java

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package pl.umk.mat.faramir.beamer;

import java.io.IOException;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotation;
import org.apache.pdfbox.rendering.PDFRenderer;
import org.apache.pdfbox.rendering.PageDrawer;
import org.apache.pdfbox.rendering.PageDrawerParameters;

/**
 *
 * @author faramir
 */
public class PdfRenderer extends PDFRenderer {

    public PdfRenderer(PDDocument document) throws IOException {
        super(document);
    }

    @Override
    protected PageDrawer createPageDrawer(PageDrawerParameters parameters) throws IOException {
        return new PdfPageDrawer(parameters);
    }

    private static class PdfPageDrawer extends PageDrawer {

        PdfPageDrawer(PageDrawerParameters parameters) throws IOException {
            super(parameters);
        }
        //
        //        @Override
        //        public void drawPage(Graphics g, PDRectangle pageSize) throws IOException {
        //            Graphics2D g2 = (Graphics2D) g;
        //            g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
        //            g2.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
        //            g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
        //            g2.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE);
        //            g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
        //            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        //            super.drawPage(g, pageSize);
        //        }

        /**
         * Custom annotation rendering.
         */
        @Override
        public void showAnnotation(PDAnnotation annotation) throws IOException {
            // save
            saveGraphicsState();

            // 35% alpha
            getGraphicsState().setNonStrokeAlphaConstants(0.35);
            super.showAnnotation(annotation);

            // restore
            restoreGraphicsState();
        }
    }

}