Example usage for java.awt Graphics2D toString

Introduction

In this page you can find the example usage for java.awt Graphics2D toString.

Prototype

public String toString() 

Source Link

Document

Returns a String object representing this Graphics object's value.

Usage

From source file:edu.gcsc.vrl.jfreechart.JFExport.java

/**
 * Export jfreechart to image format. File must have an extension like jpg,
 * png, pdf, svg, eps. Otherwise export will fail.
 *
 * @param file Destination Filedescriptor
 * @param chart JFreechart//from   w  w  w.j  av  a  2s.c  o m
 * @throws Exception
 */
public boolean export(File file, JFreeChart chart) throws Exception {

    /*Get extension from file - File must have one extension of
     jpg,png,pdf,svg,eps. Otherwise the export will fail.
     */
    String ext = JFUtils.getExtension(file);

    //  TODO - Make x,y variable
    int x, y;
    // Set size for image (jpg)
    x = 550;
    y = 470;

    int found = 0;

    // JPEG
    if (ext.equalsIgnoreCase("jpg")) {
        ChartUtilities.saveChartAsJPEG(file, chart, x, y);
        found++;
    }
    // PNG
    if (ext.equalsIgnoreCase("png")) {
        ChartUtilities.saveChartAsPNG(file, chart, x, y);
        found++;
    }

    // PDF
    if (ext.equalsIgnoreCase("pdf")) {

        //JRAbstractRenderer jfcRenderer = new JFreeChartRenderer(chart);
        // Use here size of r2d2 (see below, Rectangel replaced by Rectangle2D !)
        Rectangle pagesize = new Rectangle(x, y);

        Document document = new Document(pagesize, 50, 50, 50, 50);
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(file));
        document.open();
        PdfContentByte cb = writer.getDirectContent();
        PdfTemplate tp = cb.createTemplate(x, y);

        Graphics2D g2 = tp.createGraphics(x, y, new DefaultFontMapper());

        // Draw doesn't works with Rectangle argument - use rectangle2D instead !
        //chart.draw(g2, (java.awt.geom.Rectangle2D) new Rectangle(x,y));
        Rectangle2D r2d2 = new Rectangle2D.Double(0, 0, x, y);
        chart.draw(g2, r2d2);

        g2.dispose();
        cb.addTemplate(tp, 0, 0);
        document.close();

        found++;

    }

    // SVG
    if (ext.equalsIgnoreCase("svg")) {
        // When exporting to SVG don't forget this VERY important line:
        // svgGenerator.setSVGCanvasSize(new Dimension(width, height));
        // Otherwise renderers will not know the size of the image. It will be drawn to the correct rectangle, but the image will not have a correct default siz
        // Get a DOMImplementation
        DOMImplementation domImpl = SVGDOMImplementation.getDOMImplementation();
        org.w3c.dom.Document document = domImpl.createDocument(null, "svg", null);
        SVGGraphics2D svgGenerator = new SVGGraphics2D(document);
        //chart.draw(svgGenerator,new Rectangle(x,y));
        chart.draw(svgGenerator, new Rectangle2D.Double(0, 0, x, y));

        boolean useCSS = true; // we want to use CSS style attribute

        Writer out = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");
        svgGenerator.stream(out, useCSS);
        out.close();
        found++;
    }

    if (ext.equalsIgnoreCase("eps")) {

        //Graphics2D g = new EpsGraphics2D();
        FileOutputStream out = new FileOutputStream(file);
        //Writer out=new FileWriter(file);
        Graphics2D g = new EpsGraphics(file.getName(), out, 0, 0, x, y, ColorMode.COLOR_RGB);

        chart.draw(g, new Rectangle2D.Double(0, 0, x, y));
        //Writer out=new FileWriter(file);
        out.write(g.toString().getBytes());
        out.close();
        found++;
    }

    if (found == 0) {
        throw new IllegalArgumentException("File format '" + ext + "' not supported!");
    }

    return true;

}

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