

package org.apache.fop.render.awt;

/*
  originally contributed by
  Juergen Verwohlt: Juergen.Verwohlt@jCatalog.com,
  Rainer Steinkuhle: Rainer.Steinkuhle@jCatalog.com,
  Stanislav Gorkhover: Stanislav.Gorkhover@jCatalog.com
 */

import org.apache.fop.layout.*;
import org.apache.fop.messaging.MessageHandler;
import org.apache.fop.datatypes.*;
import org.apache.fop.image.*;
import org.apache.fop.svg.*;
import org.apache.fop.dom.svg.*;
import org.apache.fop.dom.svg.SVGArea;
import org.apache.fop.render.pdf.*;
import org.apache.fop.viewer.*;
import org.apache.fop.apps.*;

import org.w3c.dom.svg.*;

import java.awt.*;
import java.awt.Image;
import java.awt.image.*;
import java.awt.geom.*;
import java.awt.font.*;
import java.util.*;
import java.net.URL;
import java.net.MalformedURLException;
import java.io.*;
import java.beans.*;
import javax.swing.*;
import java.awt.print.*;
import java.awt.image.BufferedImage;
import java.text.*;

import org.apache.fop.render.Renderer;

public class AWTRenderer implements Renderer, Printable, Pageable {

    protected int pageWidth = 0;
    protected int pageHeight = 0;
    protected double scaleFactor = 100.0;
    protected int pageNumber = 0;
    protected AreaTree tree;
    protected ProgressListener progressListener = null;
    protected Translator res = null;

    protected Hashtable fontNames = new Hashtable();
    protected Hashtable fontStyles = new Hashtable();
    protected Color saveColor = null;

    /**
     * Image Object and Graphics Object. The Graphics Object is the Graphics
     * object that is contained withing the Image Object.
     */
    private BufferedImage pageImage = null;
    private Graphics2D graphics = null;

    /**
     * The current (internal) font name
     */
    protected String currentFontName;


    /**
     *  The parent component, used to set up the font.
     * This is needed as FontSetup needs a live AWT component
     * in order to generate valid font measures.
     */
    protected Component parent;



    /**
     * The current font size in millipoints
     */
    protected int currentFontSize;

    /**
     * The current colour's red, green and blue component
     */
    protected float currentRed = 0;
    protected float currentGreen = 0;
    protected float currentBlue = 0;

    /**
     * The current vertical position in millipoints from bottom
     */
    protected int currentYPosition = 0;

    /**
     * The current horizontal position in millipoints from left
     */
    protected int currentXPosition = 0;

    /**
     * The horizontal position of the current area container
     */
    private int currentAreaContainerXPosition = 0;


    public AWTRenderer(Translator aRes) {
        res = aRes;
    }

    /**
     *  Sets parent component which is  used to set up the font.
     * This is needed as FontSetup needs a live AWT component
     * in order to generate valid font measures.
     * @param parent the live AWT component reference
     */
    public void setComponent(Component parent) {
        this.parent = parent;
    }

    public int getPageNumber() {
        return pageNumber;
    }

    public void setPageNumber(int aValue) {
        pageNumber = aValue;
    }

    public void setScaleFactor(double newScaleFactor) {
        scaleFactor = newScaleFactor;
    }

    public double getScaleFactor() {
        return scaleFactor;
    }

    public BufferedImage getLastRenderedPage() {
        return pageImage;
    }

    /**
      * add a line to the current stream
      *
      * @param x1 the start x location in millipoints
      * @param y1 the start y location in millipoints
      * @param x2 the end x location in millipoints
      * @param y2 the end y location in millipoints
      * @param th the thickness in millipoints
      * @param r the red component
      * @param g the green component
      * @param b the blue component
      */
    protected void addLine(int x1, int y1, int x2, int y2, int th,
                           float r, float g, float b) {
        graphics.setColor(new Color (r, g, b));
        // graphics.setColor(Color.red);
        graphics.drawLine((int)(x1 / 1000f),
                          pageHeight - (int)(y1 / 1000f), (int)(x2 / 1000f),
                          pageHeight - (int)(y2 / 1000f));
    }


    /**
      * draw a filled rectangle
      *
      * @param x the x position of left edge in millipoints
      * @param y the y position of top edge in millipoints
      * @param w the width in millipoints
      * @param h the height in millipoints
      * @param r the red component
      * @param g the green component
      * @param b the blue component
      */
    protected void addRect(int x, int y, int w, int h, float r,
                           float g, float b) {
        graphics.setColor(new Color (r, g, b));
        // graphics.setColor(Color.green);
        graphics.drawRect((int)(x / 1000f),
                          pageHeight - (int)(y / 1000f), (int)(w / 1000f),
                          -(int)(h / 1000f));
    }

    /**
      * draw a filled rectangle
      *
      * @param x the x position of left edge in millipoints
      * @param y the y position of top edge in millipoints
      * @param w the width in millipoints
      * @param h the height in millipoints
      * @param r the red component of edges
      * @param g the green component of edges
      * @param b the blue component of edges
      * @param fr the red component of the fill
      * @param fg the green component of the fill
      * @param fb the blue component of the fill
      */
    protected void addRect(int x, int y, int w, int h, float r,
                           float g, float b, float fr, float fg, float fb) {
        graphics.setColor(new Color (r, g, b));
        graphics.fill3DRect((int)(x / 1000f),
                            pageHeight - (int)(y / 1000f), (int)(w / 1000f),
                            -(int)(h / 1000f), true);
    }

    /**
      * To configure before print.
      *
      * Choose pages
      * Zoom factor
      * Page format  / Landscape or Portrait
      **/
    public void transform(Graphics2D g2d, double zoomPercent,
                          double angle) {
        AffineTransform at = g2d.getTransform();
        at.rotate(angle);
        at.scale(zoomPercent / 100.0, zoomPercent / 100.0);
        g2d.setTransform(at);
    }

    protected void drawFrame() {

        int width = pageWidth;
        int height = pageHeight;

        graphics.setColor(Color.white);
        graphics.fillRect(0, 0, width, height);
        graphics.setColor(Color.black);
        graphics.drawRect(-1, -1, width + 2, height + 2);
        graphics.drawLine(width + 2, 0, width + 2, height + 2);
        graphics.drawLine(width + 3, 1, width + 3, height + 3);

        graphics.drawLine(0, height + 2, width + 2, height + 2);
        graphics.drawLine(1, height + 3, width + 3, height + 3);
    }

    /**
      * Retrieve the number of pages in this document.
      *
      * @return the number of pages
      */
    public int getPageCount() {
        if (tree == null) {
            return 0;
        }

        return tree.getPages().size();
    }

    public void render(int aPageNumber) {
        if (tree != null) {
            try {
                render(tree, aPageNumber);
            } catch (IOException e) {
                e.printStackTrace();
                // This exception can't occur because we are not dealing with
                // any files.
            }
        }
    }

    public void render(AreaTree areaTree,
                       OutputStream stream) throws IOException {
        tree = areaTree;
        render(areaTree, 0);
    }

    public void render(AreaTree areaTree,
                       int aPageNumber) throws IOException {
        tree = areaTree;
        Page page = (Page) areaTree.getPages().elementAt(aPageNumber);

        pageWidth = (int)((float) page.getWidth() / 1000f);
        pageHeight = (int)((float) page.getHeight() / 1000f);


        pageImage = new BufferedImage(
                      (int)((pageWidth * (int) scaleFactor) / 100),
                      (int)((pageHeight * (int) scaleFactor) / 100),
                      BufferedImage.TYPE_INT_RGB);

        graphics = pageImage.createGraphics();

        transform(graphics, scaleFactor, 0);
        drawFrame();

        renderPage(page);
    }

    public void renderPage(Page page) {
        BodyAreaContainer body;
        AreaContainer before, after;

        body = page.getBody();
        before = page.getBefore();
        after = page.getAfter();

        this.currentFontName = "";
        this.currentFontSize = 0;

        renderBodyAreaContainer(body);

        if (before != null) {
            renderAreaContainer(before);
        }

        if (after != null) {
            renderAreaContainer(after);
        }

        // SG: Wollen wir Links abbilden?
        /*
        if (page.hasLinks()) {
          ....
    }
        */
    }

    public void renderAreaContainer(AreaContainer area) {

        int saveY = this.currentYPosition;
        int saveX = this.currentAreaContainerXPosition;

        if (area.getPosition() ==
                org.apache.fop.fo.properties.Position.ABSOLUTE) {
            // Y position is computed assuming positive Y axis, adjust
            //for negative postscript one
            this.currentYPosition =
              area.getYPosition() - 2 * area.getPaddingTop() -
              2 * area.borderWidthTop;
            this.currentAreaContainerXPosition = area.getXPosition();
        } else if (area.getPosition() ==
                org.apache.fop.fo.properties.Position.RELATIVE) {
            this.currentYPosition -= area.getYPosition();
            this.currentAreaContainerXPosition += area.getXPosition();
        } else if (area.getPosition() ==
                org.apache.fop.fo.properties.Position.STATIC) {
            this.currentYPosition -=
              area.getPaddingTop() + area.borderWidthTop;
            this.currentAreaContainerXPosition +=
              area.getPaddingLeft() + area.borderWidthLeft;
        }

        doFrame(area);

        Enumeration e = area.getChildren().elements();
        while (e.hasMoreElements()) {
            org.apache.fop.layout.Box b =
              (org.apache.fop.layout.Box) e.nextElement();
            b.render(this);
        }

        if (area.getPosition() !=
                org.apache.fop.fo.properties.Position.STATIC) {
            this.currentYPosition = saveY;
            this.currentAreaContainerXPosition = saveX;
        } else {
            this.currentYPosition -= area.getHeight();
        }
    }

	// empty for now
  	public void renderBodyAreaContainer(BodyAreaContainer area) {
  		renderAreaContainer(area.getBeforeFloatReferenceArea());
  		renderAreaContainer(area.getFootnoteReferenceArea());
		
		// main reference area
		Enumeration e = area.getMainReferenceArea().getChildren().elements();
		while (e.hasMoreElements()) {
			org.apache.fop.layout.Box b = (org.apache.fop.layout.Box) e.nextElement();
			b.render(this);	// span areas
		}		
	}

	// empty for now
	public void renderSpanArea(SpanArea area) {
		Enumeration e = area.getChildren().elements();
		while (e.hasMoreElements()) {
			org.apache.fop.layout.Box b = (org.apache.fop.layout.Box) e.nextElement();
			b.render(this);	// column areas
		}				
	}

    private void doFrame(org.apache.fop.layout.Area area) {
        int w, h;
        int rx = this.currentAreaContainerXPosition;
        w = area.getContentWidth();

        if (area instanceof BlockArea) {
            rx += ((BlockArea) area).getStartIndent();
        }

        h = area.getContentHeight();
        int ry = this.currentYPosition;
        ColorType bg = area.getBackgroundColor();

        rx = rx - area.getPaddingLeft();
        ry = ry + area.getPaddingTop();
        w = w + area.getPaddingLeft() + area.getPaddingRight();
        h = h + area.getPaddingTop() + area.getPaddingBottom();

        // I'm not sure I should have to check for bg being null
        // but I do
        if ((bg != null) && (bg.alpha() == 0)) {
            this.addRect(rx, ry, w, -h, bg.red(), bg.green(),
                         bg.blue(), bg.red(), bg.green(), bg.blue());
        }

        rx = rx - area.borderWidthLeft;
        ry = ry + area.borderWidthTop;
        w = w + area.borderWidthLeft + area.borderWidthRight;
        h = h + area.borderWidthTop + area.borderWidthBottom;

        if (area.borderWidthTop != 0) {
            addLine(rx, ry, rx + w, ry, area.borderWidthTop,
                    area.borderColorTop.red(), area.borderColorTop.green(),
                    area.borderColorTop.blue());
        }

        if (area.borderWidthLeft != 0) {
            addLine(rx, ry, rx, ry - h, area.borderWidthLeft,
                    area.borderColorLeft.red(),
                    area.borderColorLeft.green(),
                    area.borderColorLeft.blue());
        }

        if (area.borderWidthRight != 0) {
            addLine(rx + w, ry, rx + w, ry - h, area.borderWidthRight,
                    area.borderColorRight.red(),
                    area.borderColorRight.green(),
                    area.borderColorRight.blue());
        }

        if (area.borderWidthBottom != 0) {
            addLine(rx, ry - h, rx + w, ry - h, area.borderWidthBottom,
                    area.borderColorBottom.red(),
                    area.borderColorBottom.green(),
                    area.borderColorBottom.blue());
        }
    }



    protected Rectangle2D getBounds(org.apache.fop.layout.Area a) {
        return new Rectangle2D.Double(currentAreaContainerXPosition,
                                      currentYPosition, a.getAllocationWidth(), a.getHeight());
    }

    public void renderBlockArea(BlockArea area) {
        doFrame(area);
        Enumeration e = area.getChildren().elements();
        while (e.hasMoreElements()) {
            org.apache.fop.layout.Box b =
              (org.apache.fop.layout.Box) e.nextElement();
            b.render(this);
        }
    }

    public void setupFontInfo(FontInfo fontInfo) {
        FontSetup.setup(fontInfo, parent);
    }

    public void renderDisplaySpace(DisplaySpace space) {
        int d = space.getSize();
        this.currentYPosition -= d;
    }


    public void renderImageArea(ImageArea area) {

        int x = currentAreaContainerXPosition +
                area.getXOffset();

        int y = currentYPosition;

        int w = area.getContentWidth();

        int h = area.getHeight();



        FopImage img = area.getImage();



        if (img == null) {

            MessageHandler.logln("Error while loading image : area.getImage() is null");

            graphics.drawRect(x / 1000,
                              pageHeight - y / 1000,
                              w / 1000,
                              h / 1000);

            java.awt.Font f = graphics.getFont();

            java.awt.Font smallFont =
              new java.awt.Font(f.getFontName(), f.getStyle(), 8);

            graphics.setFont(smallFont);

            graphics.drawString("area.getImage() is null", x / 1000,
                                pageHeight - y / 1000);

            graphics.setFont(f);

        } else {



            String urlString = img.getURL();

            try {

                URL url = new URL(urlString);



                ImageIcon icon = new ImageIcon(url);

                Image image = icon.getImage();



                graphics.drawImage(image, x / 1000,
                                   pageHeight - y / 1000,
                                   w / 1000,
                                   h / 1000,
                                   null);

            } catch (MalformedURLException mue) {

                // cannot normally occur because, if URL is wrong, constructing FopImage

                // will already have failed earlier on

            }

        }



        currentYPosition -= h;

    }

    public void renderInlineArea(InlineArea area) {
        char ch;
        StringBuffer pdf = new StringBuffer();

        String name = area.getFontState().getFontName();
        int size = area.getFontState().getFontSize();
        boolean underlined = area.getUnderlined();

        float red = area.getRed();
        float green = area.getGreen();
        float blue = area.getBlue();

        FontMetricsMapper mapper;
        try {
            mapper = (FontMetricsMapper)
                     area.getFontState().getFontInfo().getMetricsFor(name);
        } catch (FOPException iox) {
            mapper = new FontMetricsMapper("MonoSpaced",
                                           java.awt.Font.PLAIN, parent);
        }

        if ((!name.equals(this.currentFontName)) ||
                (size != this.currentFontSize)) {
            this.currentFontName = name;
            this.currentFontSize = size;
        }

        if ((red != this.currentRed) || (green != this.currentGreen) ||
                (blue != this.currentBlue)) {
            this.currentRed = red;
            this.currentGreen = green;
            this.currentBlue = blue;
        }

        int rx = this.currentXPosition;
        int bl = this.currentYPosition;


        String s = area.getText();
        Color oldColor = graphics.getColor();
        java.awt.Font oldFont = graphics.getFont();
        java.awt.Font f = mapper.getFont(size);

        if (saveColor != null) {
            if (saveColor.getRed() != red ||
                    saveColor.getGreen() != green ||
                    saveColor.getBlue() != blue) {
                saveColor = new Color(red, green, blue);
            }
        } else {
            saveColor = new Color(red, green, blue);
        }
        graphics.setColor(saveColor);

        FontRenderContext newContext = graphics.getFontRenderContext();
        AttributedString ats = new AttributedString(s);
        ats.addAttribute(TextAttribute.FONT, f);
        if (underlined) {
            ats.addAttribute(TextAttribute.UNDERLINE,
                             TextAttribute.UNDERLINE_ON);
        }
        AttributedCharacterIterator iter = ats.getIterator();
        graphics.drawString(iter, rx / 1000f,
                            (int)(pageHeight - bl / 1000f));

        graphics.setColor(oldColor);
        this.currentXPosition += area.getContentWidth();
    }

    public void renderInlineSpace(InlineSpace space) {
        this.currentXPosition += space.getSize();
    }

    public void renderLineArea(LineArea area) {
        int rx = this.currentAreaContainerXPosition + area.getStartIndent();
        int ry = this.currentYPosition;
        int w = area.getContentWidth();
        int h = area.getHeight();

        this.currentYPosition -= area.getPlacementOffset();
        this.currentXPosition = rx;

        int bl = this.currentYPosition;

        Enumeration e = area.getChildren().elements();
        while (e.hasMoreElements()) {
            org.apache.fop.layout.Box b =
              (org.apache.fop.layout.Box) e.nextElement();
            b.render(this);
        }

        this.currentYPosition = ry - h;
    }

  /**
   * render leader area into AWT
   *
   * @param area area to render
   */
  public void renderLeaderArea(LeaderArea area) {

  	int rx = this.currentXPosition;
	int ry = this.currentYPosition;
	int w = area.getLeaderLength();
	int h = area.getHeight();
	int th = area.getRuleThickness();
        int st = area.getRuleStyle();   //not used at the moment
	float r = area.getRed();
	float g = area.getGreen();
	float b = area.getBlue();
	Color oldColor = graphics.getColor();

	graphics.setColor(new Color(r, g, b));
	graphics.fillRect((int)(rx / 1000f), (int)(pageHeight - ry / 1000f),
					  (int)(w / 1000f), (int)(th / 1000f));
	graphics.setColor(oldColor);
	this.currentXPosition += area.getContentWidth();
  }


    public void renderSVGArea(SVGArea area) {

        int x = this.currentAreaContainerXPosition;
        int y = this.currentYPosition;
        int w = area.getContentWidth();
        int h = area.getHeight();

        Enumeration e = area.getChildren().elements();
        while (e.hasMoreElements()) {
            Object o = e.nextElement();
            if (o instanceof GraphicImpl) {
                renderElement(area, (GraphicImpl) o, x, y, null);
            }
        }

        this.currentYPosition -= h;

    }



    public void setProducer(String producer) {
        // defined in Renderer Interface
    }

    public int print(Graphics g, PageFormat pageFormat,
                     int pageIndex) throws PrinterException {
        if (pageIndex >= tree.getPages().size())
            return NO_SUCH_PAGE;

        Graphics2D oldGraphics = graphics;
        int oldPageNumber = pageNumber;

        graphics = (Graphics2D) g;
        Page aPage = (Page) tree.getPages().elementAt(pageIndex);
        renderPage(aPage);
        graphics = oldGraphics;

        return PAGE_EXISTS;
    }

    public int getNumberOfPages() {
        return tree.getPages().size();
    }

    public PageFormat getPageFormat(int pageIndex)
    throws IndexOutOfBoundsException {
        if (pageIndex >= tree.getPages().size())
            return null;

        Page page = (Page) tree.getPages().elementAt(pageIndex);
        PageFormat pageFormat = new PageFormat();
        Paper paper = new Paper();
        paper.setImageableArea(0, 0, page.getWidth() / 1000d,
                               page.getHeight() / 1000d);
        paper.setSize(page.getWidth() / 1000d, page.getHeight() / 1000d);
        pageFormat.setPaper(paper);

        return pageFormat;
    }

    public Printable getPrintable(int pageIndex)
    throws IndexOutOfBoundsException {
        return this;
    }

    public void setProgressListener(ProgressListener l) {
        progressListener = l;
    }

    public static Color colorType2Color(ColorType ct) {
        if (ct == null) {
            return null;
        }
        return new Color(ct.red(), ct.green(), ct.blue());
    }



    /**
      * Draws an image.
      * TODO: protect other image formats (JIMI)
      */
    public void renderImage(String href, float x, float y, float width,
                            float height, Vector transform) {
        // What is with transformations?
        try {
            URL url = new URL(href);
            ImageIcon imageIcon = new ImageIcon(url);

            AffineTransform fullTransform = new AffineTransform();
            AffineTransform aTransform;

            transform = (transform == null) ? new Vector() : transform;
            for (int i = 0; i < transform.size(); i++) {
                org.w3c.dom.svg.SVGTransform t =
                  (org.w3c.dom.svg.SVGTransform)
                  transform.elementAt(i);
                SVGMatrix matrix = t.getMatrix();
                aTransform = new AffineTransform(matrix.getA(),
                                                 matrix.getB(), matrix.getC(), matrix.getD(),
                                                 matrix.getE(), matrix.getF());
                fullTransform.concatenate(aTransform);
            }

            BufferedImage bi = new BufferedImage((int) width, (int) height,
                                                 BufferedImage.TYPE_INT_RGB);
            Graphics2D g2d = bi.createGraphics();
            BufferedImageOp bop = new AffineTransformOp(fullTransform,
                                  AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
            g2d.drawImage(imageIcon.getImage(), 0, 0, (int) width,
                          (int) height, imageIcon.getImageObserver());
            graphics.drawImage(bi, bop, (int) x, (int) y);
        } catch (Exception ex) {
            MessageHandler.errorln("AWTRenderer: renderImage(): " +
                                   ex.getMessage());
        }
    }



    public void renderElement(SVGArea svgarea, GraphicImpl area,
                              int posx, int posy, Vector parentTransforms) {
        int x = posx;
        int y = posy;
        Hashtable style = area.oldgetStyle();
        DrawingInstruction di = createInstruction(area, style);

        Object o = null;
        Vector v = area.oldgetTransform();
        v = (v == null) ? new Vector() : v;
        Vector trans = new Vector(v);
        parentTransforms = (parentTransforms == null) ? new Vector() :
                           parentTransforms;

        if (parentTransforms != null) {
            trans.addAll(0, parentTransforms);
        }

        float red = (float) graphics.getColor().getRed();
        float green = (float) graphics.getColor().getGreen();
        float blue = (float) graphics.getColor().getBlue();
        Color c = null;

        ColorType ct = null;
        try {
            o = style.get("fill");
            if (o != null && o instanceof ColorType) {
                ct = (ColorType) o;
                c = new Color((int)(ct.red() * 255f),
                              (int)(ct.green() * 255f), (int)(ct.blue() * 255f));
            }
            o = style.get("stroke");
            if (c == null && o != null && o instanceof ColorType) {
                ct = (ColorType) o;
                c = new Color((int)(ct.red() * 255f),
                              (int)(ct.green() * 255f), (int)(ct.blue() * 255f));
            }
        } catch (Exception ex) {
            MessageHandler.errorln("Can't set color: R G B : " +
                                   (int)(ct.red() * 255f) + " " +
                                   (int)(ct.green() * 255f) + " " +
                                   (int)(ct.blue() * 255f));
            c = Color.pink;
        }

        if (c == null) {
            c = new Color((int) red, (int) green, (int) blue);
        }
        Color oldColor = graphics.getColor();

        if (area instanceof SVGLineElement) {
            graphics.setColor(c);
            SVGLineElementImpl lg = (SVGLineElementImpl) area;

            float x1 = lg.getX1().getBaseVal().getValue() * 1000 + posx;
            float y1 = posy - lg.getY1().getBaseVal().getValue() * 1000 ;
            float x2 = lg.getX2().getBaseVal().getValue() * 1000 + posx;
            float y2 = posy - lg.getY2().getBaseVal().getValue() * 1000;
            // TODO:
            // The thickness of contour protect.
            int th = 1;
            o = style.get("stroke-width");
            if (o != null)
                th = (int)((SVGLengthImpl) o).getValue();
            Line2D.Double aLine = new Line2D.Double(x1 / 1000f,
                                                    pageHeight - y1 / 1000f, x2 / 1000f,
                                                    pageHeight - y2 / 1000f);
            drawShape(transformShape(trans, aLine), di);
            graphics.setColor(oldColor);
        } else if (area instanceof SVGRectElement) {
            graphics.setColor(c);
            SVGRectElement rg = (SVGRectElement) area;
            float rectx = rg.getX().getBaseVal().getValue() * 1000 + posx;
            float recty = posy - rg.getY().getBaseVal().getValue() * 1000;
            float rx = rg.getRx().getBaseVal().getValue() * 1000;
            float ry = rg.getRy().getBaseVal().getValue() * 1000;
            float rw = rg.getWidth().getBaseVal().getValue() * 1000;
            float rh = rg.getHeight().getBaseVal().getValue() * 1000;

            // TODO:
            // rx and ry are roundings.
            // RoundRectangle2D.Double
            Rectangle aRectangle = new Rectangle();
            aRectangle.setRect(rectx / 1000d,
                               pageHeight - recty / 1000d, rw / 1000d, rh / 1000d);
            drawShape(transformShape(trans, aRectangle), di);
            graphics.setColor(oldColor);
        } else if (area instanceof SVGCircleElement) {
            graphics.setColor(c);
            SVGCircleElement cg = (SVGCircleElement) area;
            float cx = cg.getCx().getBaseVal().getValue() * 1000 + posx;
            float cy = posy - cg.getCy().getBaseVal().getValue() * 1000;
            float r = cg.getR().getBaseVal().getValue();
            Ellipse2D.Double anEllipse =
              new Ellipse2D.Double(cx / 1000d - r,
                                   pageHeight - cy / 1000d - r, r * 2d, r * 2d);
            drawShape(transformShape(trans, anEllipse), di);
            graphics.setColor(oldColor);
        } else if (area instanceof SVGEllipseElement) {
            graphics.setColor(c);
            SVGEllipseElement cg = (SVGEllipseElement) area;
            float cx = cg.getCx().getBaseVal().getValue() * 1000 + posx;
            float cy = posy - cg.getCy().getBaseVal().getValue() * 1000;
            float rx = cg.getRx().getBaseVal().getValue();
            float ry = cg.getRy().getBaseVal().getValue();
            Ellipse2D.Double anEllipse =
              new Ellipse2D.Double(cx / 1000d - rx,
                                   pageHeight - cy / 1000d - ry, rx * 2d, ry * 2d);
            drawShape(transformShape(trans, anEllipse), di);
            graphics.setColor(oldColor);
        } else if (area instanceof SVGImageElementImpl) {
            SVGImageElementImpl ig = (SVGImageElementImpl) area;
            renderImage(ig.link, ig.x + posx / 1000f,
                        pageHeight - (posy / 1000f - ig.y), ig.width,
                        ig.height, trans);
        } else if (area instanceof SVGUseElementImpl) {
            SVGUseElementImpl ug = (SVGUseElementImpl) area;
            String ref = ug.link;
            ref = ref.substring(1, ref.length());
            GraphicImpl graph = null;
            //			graph = area.locateDef(ref);
            if (graph != null) {
                // probably not the best way to do this, should be able
                // to render without the style being set.
                //				GraphicImpl parent = graph.getGraphicParent();
                //				graph.setParent(area);
                // need to clip (if necessary) to the use area
                // the style of the linked element is as if is was
                // a direct descendant of the use element.

                renderElement(svgarea, graph, posx, posy, trans);
                //				graph.setParent(parent);
            }
        } else if (area instanceof SVGPolylineElementImpl) {
            graphics.setColor(c);
            Vector points = ((SVGPolylineElementImpl) area).points;
            PathPoint p = null;
            Point2D.Double p1 = null;
            Point2D.Double p2 = null;
            if (points.size() > 0) {
                p = (PathPoint) points.elementAt(0);
                double xc = p.x * 1000f + posx;
                double yc = posy - p.y * 1000f;
                p1 = new Point2D.Double(xc / 1000f,
                                        pageHeight - yc / 1000f);

                int[] xarr = {(int) xc};
                int[] yarr = {(int) yc};
                graphics.drawPolyline(xarr, yarr, 1);
            }
            Line2D.Double aLine;
            for (int i = 1; i < points.size(); i++) {
                p = (PathPoint) points.elementAt(i);
                p2 = new Point2D.Double(p.x + posx / 1000f,
                                        pageHeight - (posy - p.y * 1000f) / 1000f);
                aLine = new Line2D.Double(p1, p2);
                graphics.draw(transformShape(trans, aLine));
                p1 = p2;
            }
            graphics.setColor(oldColor);
        } else if (area instanceof SVGPolygonElementImpl) {
            graphics.setColor(c);
            java.awt.Polygon aPolygon =
              convertPolygon(((SVGPolygonElementImpl) area),
                             posx, posy);
            drawShape(transformShape(trans, aPolygon), di);
            graphics.setColor(oldColor);
        } else if (area instanceof SVGGElementImpl) {
            renderGArea(svgarea, (SVGGElementImpl) area, x, y,
                        parentTransforms);
        } else if (area instanceof SVGPathElementImpl) {
            graphics.setColor(c);
            GeneralPath path =
              convertPath((SVGPathElementImpl) area, posx, posy);
            drawShape(transformShape(trans, path), di);
            graphics.setColor(oldColor);
        } else if (area instanceof SVGTextElementImpl) {
            MessageHandler.errorln("SVGTextElementImpl  is not implemented yet.");
            // renderText(svgarea, (SVGTextElementImpl)area, 0, 0, di);
        } else if (area instanceof SVGArea) {
            // the x and y pos will be wrong!
            Enumeration e = ((SVGArea) area).getChildren().elements();
            while (e.hasMoreElements()) {
                Object el = e.nextElement();
                if (o instanceof GraphicImpl) {
                    renderElement((SVGArea) area, (GraphicImpl) el, x,
                                  y, parentTransforms);
                }
            }
        }

        // should be done with some cleanup code, so only
        // required values are reset.
    } // renderElement


    public void renderGArea(SVGArea svgarea, SVGGElementImpl area,
                            int posx, int posy, Vector v) {


        Vector trans = null;
        //	trans = new Vector(area.oldgetTransform());
        //  trans.addAll(0, v);
        /*		Enumeration e = area.getChildren().elements();
        		while (e.hasMoreElements()) {
        			Object o = e.nextElement();
        			if(o instanceof GraphicImpl) {
        				renderElement(svgarea, (GraphicImpl)o, posx, posy, trans);
        			}
        		}*/
    }
    public void renderGArea(SVGArea svgarea, SVGGElementImpl area,
                            int posx, int posy) {
        renderGArea(svgarea, area, posx, posy, new Vector());
    }


    /**
      * Applies SVGTransform to the shape and gets the transformed shape.
      * The type of the new shape may be different to the original type.
      */
    public Shape transformShape(Vector trans, Shape shape) {
        if (trans == null || trans.size() == 0) {
            return shape;
        }

        AffineTransform at;
        for (int i = trans.size() - 1; i >= 0; i--) {
            org.w3c.dom.svg.SVGTransform t =
              (org.w3c.dom.svg.SVGTransform) trans.elementAt(i);
            SVGMatrix matrix = t.getMatrix();
            at = new AffineTransform(matrix.getA(), matrix.getB(),
                                     matrix.getC(), matrix.getD(), matrix.getE(),
                                     matrix.getF());
            shape = at.createTransformedShape(shape);
        }
        return shape;
    }


    /**
      * Mapps a SVG-Polygon to a AWT-Polygon.
      */
    public java.awt.Polygon convertPolygon(SVGPolygonElementImpl svgpl,
                                           int x, int y) {
        java.awt.Polygon aPolygon = new java.awt.Polygon();
        Vector points = svgpl.points;

        PathPoint p;
        for (int i = 0; i < points.size(); i++) {
            p = (PathPoint) points.elementAt(i);
            aPolygon.addPoint((int)(x / 1000f + p.x),
                              pageHeight - (int)(y / 1000f - p.y));
        }

        return aPolygon;
    }

    // TODO: other attributes of DrawingInstruction protect too.
    protected DrawingInstruction createInstruction(GraphicImpl area,
            Hashtable style) {
        DrawingInstruction di = new DrawingInstruction();
        Object sp;
        sp = style.get("fill");
        if (sp != null && !(sp instanceof String && sp.equals("none"))) {
            di.fill = true;
        }
        // ...
        return di;
    }

    // Draws a shape.
    // TODO: other attributes of DrawingInstruction protect too.
    protected void drawShape(Shape s, DrawingInstruction di) {
        if (di.fill) {
            graphics.fill(s);
        } else {
            graphics.draw(s);
        }
    }

    /**
      * Mapps a SVG-Path to a AWT-GeneralPath.
      */
    public GeneralPath convertPath(SVGPathElementImpl svgpath, float x,
                                   float y) {
        Vector points = svgpath.pathElements;
        GeneralPath path = new GeneralPath();

        float lastx = 0;
        float lasty = 0;
        SVGPathSegImpl pathmoveto = null;

        for (Enumeration e = points.elements(); e.hasMoreElements();) {
            SVGPathSegImpl pc = (SVGPathSegImpl) e.nextElement();
            float[] vals = pc.getValues();
            float lastcx = 0;
            float lastcy = 0;
            switch (pc.getPathSegType()) {
                case SVGPathSeg.PATHSEG_MOVETO_ABS:
                    lastx = vals[0];
                    lasty = vals[1];
                    pathmoveto = pc;
                    path.moveTo(lastx + x / 1000f,
                                pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_MOVETO_REL:
                    if (pathmoveto == null) {
                        lastx = vals[0];
                        lasty = vals[1];
                        path.moveTo(lastx + x / 1000f,
                                    pageHeight - y / 1000f + lasty);
                        pathmoveto = pc;
                    } else {
                        lastx += vals[0];
                        lasty += vals[1];
                        path.lineTo(lastx + x / 1000f,
                                    pageHeight - y / 1000f + lasty);

                    }
                    break;
                case SVGPathSeg.PATHSEG_LINETO_ABS:
                    lastx = vals[0];
                    lasty = vals[1];
                    path.lineTo(lastx + x / 1000f,
                                pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_LINETO_REL:
                    lastx += vals[0];
                    lasty += vals[1];
                    path.lineTo(lastx + x / 1000f,
                                pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS:
                    lasty = vals[0];
                    path.lineTo(lastx + x / 1000f,
                                pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL:
                    lasty += vals[0];
                    path.lineTo(lastx + x / 1000f,
                                pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS:
                    lastx = vals[0];
                    path.lineTo(lastx + x / 1000f,
                                pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL:
                    lastx += vals[0];
                    path.lineTo(lastx + x / 1000f,
                                pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS:
                    lastx = vals[4];
                    lasty = vals[5];
                    lastcx = vals[2];
                    lastcy = vals[3];
                    path.curveTo(x / 1000f + vals[0],
                                 pageHeight - y / 1000f + vals[1],
                                 x / 1000f + lastcx,
                                 pageHeight - y / 1000f + lastcy,
                                 x / 1000f + lastx,
                                 pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL:
                    path.curveTo(x / 1000f + vals[0] + lastx,
                                 pageHeight - y / 1000f + vals[1] + lasty,
                                 x / 1000f + lastx + vals[2],
                                 pageHeight - y / 1000f + lasty + vals[3],
                                 x / 1000f + lastx + vals[4],
                                 pageHeight - y / 1000f + lasty + vals[5]);
                    lastcx = vals[2] + lastx;
                    lastcy = vals[3] + lasty;
                    lastx += vals[4];
                    lasty += vals[5];
                    break;
                case SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS:
                    if (lastcx == 0)
                        lastcx = lastx;
                    if (lastcy == 0)
                        lastcy = lasty;
                    lastx = vals[2];
                    lasty = vals[3];
                    path.curveTo(x / 1000f + lastcx,
                                 pageHeight - y / 1000f + lastcy,
                                 x / 1000f + vals[0],
                                 pageHeight - y / 1000f + vals[1],
                                 x / 1000f + lastx,
                                 pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL:
                    if (lastcx == 0)
                        lastcx = lastx;
                    if (lastcy == 0)
                        lastcy = lasty;
                    path.curveTo(x / 1000f + lastcx,
                                 pageHeight - y / 1000f + lastcy,
                                 x / 1000f + lastx + vals[0],
                                 pageHeight - y / 1000f + lasty + vals[1],
                                 x / 1000f + lastx + vals[2],
                                 pageHeight - y / 1000f + lasty + vals[3]);
                    lastx += vals[2];
                    lasty += vals[3];
                    break;
                case SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS:
                    if (lastcx == 0)
                        lastcx = lastx;
                    if (lastcy == 0)
                        lastcy = lasty;
                    lastx = vals[0];
                    lasty = vals[1];
                    lastcx = 0;
                    lastcy = 0;
                    path.quadTo(x / 1000f + lastcx,
                                pageHeight - y / 1000f + lastcy,
                                x / 1000f + lastx,
                                pageHeight - y / 1000f + lasty);
                    break;
                case SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL:
                    if (lastcx == 0)
                        lastcx = lastx;
                    if (lastcy == 0)
                        lastcy = lasty;

                    path.quadTo(x / 1000f + lastcx ,
                                pageHeight - y / 1000f + lastcy,
                                x / 1000f + lastx + vals[0],
                                pageHeight - y / 1000f + lasty + vals[1]);

                    lastx += vals[0];
                    lasty += vals[1];
                    lastcx = 0;
                    lastcy = 0;
                    break;
                case SVGPathSeg.PATHSEG_ARC_ABS:
                    {
                        // Arc2D.Double arc = new Arc2D.Double();
                        // arc.setAngles(current point, end point); ....
                        double rx = vals[0];
                        double ry = vals[1];
                        double theta = vals[2];
                        boolean largearcflag = (vals[3] == 1.0);
                        boolean sweepflag = (vals[4] == 1.0);

                        double cx = lastx;
                        double cy = lasty;

                        path.curveTo(x / 1000f + lastx,
                                     pageHeight - y / 1000f + lasty,
                                     x / 1000f + vals[0],
                                     pageHeight - y / 1000f + vals[1],
                                     x / 1000f + vals[5],
                                     pageHeight - y / 1000f + vals[6]);

                        lastcx = 0; //??
                        lastcy = 0; //??
                        lastx = vals[5];
                        lasty = vals[6];
                    }
                    break;
                case SVGPathSeg.PATHSEG_ARC_REL:
                    {
                        double rx = vals[0];
                        double ry = vals[1];
                        double theta = vals[2];
                        boolean largearcflag = (vals[3] == 1.0);
                        boolean sweepflag = (vals[4] == 1.0);

                        path.curveTo(x / 1000f + lastx,
                                     pageHeight - y / 1000f + lasty,
                                     x / 1000f + (vals[0] + lastx),
                                     pageHeight - y / 1000f + (vals[1] + lasty),
                                     x / 1000f + (vals[5] + lastx),
                                     pageHeight - y / 1000f + (vals[6] + lasty));
                        lastcx = 0; //??
                        lastcy = 0; //??
                        lastx += vals[5];
                        lasty += vals[6];
                    }
                    break;
                case SVGPathSeg.PATHSEG_CLOSEPATH:
                    path.closePath();
                    break;


            } // switch
        } // for points.elements()

        return path;
    } // convertPath
    /*
    		if(di == null) {
    			currentStream.add("S\n");
    		} else {
    			if(di.fill) {
    				if(di.stroke) {
    					if(!di.nonzero)
    						currentStream.add("B*\n");
    					else
    						currentStream.add("B\n");
    				} else {
    					if(!di.nonzero)
    						currentStream.add("f*\n");
    					else
    						currentStream.add("f\n");
    				}
    			} else {
    //				if(di.stroke)
    					currentStream.add("S\n");
    			}
    		}
    */

    /*
     * by pdfrenderer übernommen.
     *
     */
    class DrawingInstruction {
        boolean stroke = false;
        boolean nonzero = false; // non-zero fill rule "f*", "B*" operator
        boolean fill = false;
        int linecap = 0; // butt
        int linejoin = 0; // miter
        int miterwidth = 8;
    }

    public void renderForeignObjectArea(ForeignObjectArea area) {
        area.getObject().render(this);
    }

}



