| gvSIG desktop 1

/*

 * Created on 20-feb-2004

 *

 */

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package com.iver.cit.gvsig.project.documents.layout.fframes;

import java.awt.Dimension;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.RenderingHints;

import java.awt.geom.AffineTransform;

import java.awt.geom.NoninvertibleTransformException;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.awt.image.ImagingOpException;

import java.io.File;

import javax.print.attribute.PrintRequestAttributeSet;

import javax.swing.ImageIcon;

import org.apache.batik.bridge.BridgeContext;

import org.apache.batik.bridge.DocumentLoader;

import org.apache.batik.bridge.GVTBuilder;

import org.apache.batik.bridge.UserAgentAdapter;

import org.apache.batik.bridge.ViewBox;

import org.apache.batik.gvt.GraphicsNode;

import org.apache.batik.gvt.renderer.StaticRenderer;

import org.gvsig.tools.file.PathGenerator;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.svg.SVGDocument;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.cit.gvsig.fmap.core.FShape;

import com.iver.cit.gvsig.project.documents.exceptions.SaveException;

import com.iver.cit.gvsig.project.documents.layout.fframes.gui.dialogs.FFramePictureDialog;

import com.iver.cit.gvsig.project.documents.layout.fframes.gui.dialogs.IFFrameDialog;

import com.iver.cit.gvsig.project.documents.layout.gui.Layout;

import com.iver.utiles.XMLEntity;

import com.sun.jimi.core.Jimi;

/**

 * FFrame para introducir una imagen en el Layout o para dibujar sobre el

 * graphics un SVG.

 *

 * @author Vicente Caballero Navarro

 */

public class FFramePicture extends FFrame {

    protected static RenderingHints defaultRenderingHints;

    static {

        defaultRenderingHints = new RenderingHints(null);

        defaultRenderingHints.put(RenderingHints.KEY_ANTIALIASING,

            RenderingHints.VALUE_ANTIALIAS_ON);

        defaultRenderingHints.put(RenderingHints.KEY_INTERPOLATION,

            RenderingHints.VALUE_INTERPOLATION_BILINEAR);

    }

    private static final int PRESENTACION = 0;

    private static final int ACTIVO = 1;

    private BufferedImage m_image = null;

    private int m_quality = PRESENTACION;

    private int m_viewing = ACTIVO;

    private String m_path = null;

    private boolean isSVG = false;

    private StaticRenderer renderer = new StaticRenderer();

    private Element elt;

    private GVTBuilder gvtBuilder = new GVTBuilder();

    private GraphicsNode gvtRoot = null;

    private BridgeContext ctx;

    /**

     * Creates a new FFramePicture object.

     */

    public FFramePicture() {

    }

    /**

     * M?todo que dibuja sobre el graphics que se le pasa como par?metro, seg?n

     * la transformada afin que se debe de aplicar y el rect?ngulo que se debe

     * de dibujar.

     *

     * @param g Graphics

     * @param at Transformada afin.

     * @param rv rect?ngulo sobre el que hacer un clip.

     * @param imgBase Imagen para acelerar el dibujado.

     */

    public void draw(Graphics2D g, AffineTransform at, Rectangle2D rv,

        BufferedImage imgBase) {

        Rectangle2D.Double r = getBoundingBox(at);

        g.rotate(Math.toRadians(getRotation()), r.x + (r.width / 2),

            r.y + (r.height / 2));

        double x = r.getMinX();

        double y = r.getMinY();

        double w = r.getWidth();

        double h = r.getHeight();

        if (intersects(rv, r)|| w!=0 || h!=0) {

            if ((m_image == null) && !isSVG) { //Que no hay una imagen.

                drawEmpty(g);

            } else {

                if ((rv == null) || (getQuality() == PRESENTACION)) {

                    if (!isSVG) {

                        double scalex = w / m_image.getWidth(null);

                        double scaley = h / m_image.getHeight(null);

                       try {

                        AffineTransform xform = AffineTransform.getScaleInstance(scalex,

                                scaley);

                        AffineTransform xpos = AffineTransform.getTranslateInstance(x,

                                y);

                        xpos.concatenate(xform);

                        g.drawRenderedImage(m_image, xpos);

                       }catch (ImagingOpException e) {

                               NotificationManager.addError("Dibujando FFramePicture", e);

                       }

                    } else if (isSVG) {

                        try {

                            if (r != null) {

                                drawSVG(g, r, rv);

                            }

                        } catch (OutOfMemoryError e) {

                                 NotificationManager.addError("Dibujando SVG FFramePicture", e);

                        } catch (IllegalArgumentException e) {

                                 NotificationManager.addError("Dibujando SVG FFramePicture", e);

                        }

                    }

                    System.gc();

                } else {

                    drawDraft(g);

                }

            }

        }

        g.rotate(Math.toRadians(-getRotation()), r.x + (r.width / 2),

            r.y + (r.height / 2));

    }

    /**

     * Dibuja SVG sobre el Graphics que se pasa como par?metro.

     *

     * @param g Graphics

     * @param rect rect?ngulo que ocupa.

     * @param rv Rect?ngulo que forma la parte visible del Layout.

     */

    private void drawSVG(Graphics2D g, Rectangle2D rect, Rectangle2D rv) {

            if (rv!=null && !rv.intersects(rect))

                    return;

            if (gvtRoot != null) {

                     //Si no tiene atributo "viewBox" el m?todo ViewBox.getViewTransform devuelve una transformaci?n que no hace nada

                    if (elt.hasAttribute("viewBox")) {

                            AffineTransform ataux = new AffineTransform();

                            ataux.translate(rect.getX(), rect.getY());

                            try {

                                    ataux.concatenate(ViewBox.getViewTransform(null, elt,

                                                    (float) rect.getWidth(), (float) rect.getHeight(), ctx));

                                    gvtRoot.setTransform(ataux);

                            } catch (Exception e) {

                                    // TODO: handle exception

                            }

                    } else {

                            Rectangle2D bounds = gvtRoot.getBounds();

                            AffineTransform ataux = new AffineTransform();

                            ataux.translate(rect.getX(), rect.getY());

                            double scaleX = 1;

                            double scaleY = 1;

                            //FIXME: Se podr?a mejorar el dibujado si parsearamos el atributo "preserveAspectRatio"

                            // seg?n http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute

                            // pero de momento me limito preservar el ratio de aspecto o no. 

                            if(elt.getAttribute("preserveAspectRatio").compareToIgnoreCase("")!=0){

                                    scaleX = scaleY = Math.min(rect.getWidth()/bounds.getWidth(),

                                                    rect.getHeight()/bounds.getHeight());

                            } else {

                                    scaleX = rect.getWidth()/bounds.getWidth() ;

                                    scaleY = rect.getHeight()/bounds.getHeight();

                            }

                            ataux.concatenate(AffineTransform.getScaleInstance(

                                            scaleX,

                                            scaleY));

                            RenderingHints renderingHints = defaultRenderingHints;

                            g.setRenderingHints(renderingHints);

                            gvtRoot.setTransform(ataux);

                    }

                    gvtRoot.paint(g);

            }

    }

    /**

     * Rellena la calidad seg?n el entero que se pasa como par?metro.

     *

     * @param q entero que representa el tipo de calidad elegido.

     */

    public void setQuality(int q) {

        m_quality = q;

    }

    /**

     * Devuelve la calidad que est? seleccionada.

     *

     * @return entero que representa la calidad seleccionada.

     */

    public int getQuality() {

        return m_quality;

    }

    /**

     * Devuelve un entero que representa la forma en que se actualiza la vista.

     *

     * @return forma que se actualiza la vista.

     */

    public int getViewing() {

        return m_viewing;

    }

    /**

     * Rellena la forma de actualizar la vista.

     *

     * @param v entero que representa la forma de actualizar la vista.

     */

    public void setViewing(int v) {

        m_viewing = v;

    }

    /**

     * Rellena el nombre de la imagen.

     *

     * @param path nombre de la imagen.

     */

    public void setPath(String path) {

        m_path = path;

    }

    /**

     * Devuelve la ruta del fichero.

     *

     * @return String

     */

    public String getPath() {

        return m_path;

    }

    /**

     * Rellena la imagen.

     *

     * @param image

     */

    public void setImage(BufferedImage image) {

        m_image = image;

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     *

     * @throws SaveException

     *

     * @see com.iver.cit.gvsig.project.documents.layout.fframes.IFFrame#getXMLEntity()

     */

    public XMLEntity getXMLEntity() throws SaveException {

        XMLEntity xml = super.getXMLEntity();

        try {

            xml.putProperty("m_path", PathGenerator.getInstance().getPath(m_path));

            xml.putProperty("m_quality", m_quality);

            xml.putProperty("m_viewing", m_viewing);

        } catch (Exception e) {

            throw new SaveException(e, this.getClass().getName());

        }

        return xml;

    }

    /**

     * Devuelve la dimensi?n dela imagen.

     *

     * @param file Nombre del fichero donde se encuentra la imagen.

     *

     * @return DOCUMENT ME!

     */

    public Dimension getBound(String file) {

        Image img = load(file);

        if (isSVG) {

            return new Dimension(100, 100);

        }

        if (img == null) {

            return new Dimension((int) getBoundingBox(null).getWidth(),

                (int) getBoundingBox(null).getHeight());

        }

        return new Dimension(img.getWidth(null), img.getHeight(null));

    }

    /**

     * Carga el contnido del fichero.

     *

     * @param file Nombre del fichero a cargar.

     *

     * @return Imagen

     */

    public Image load(String file) {

        if (file==null)

                return null;

            ImageIcon tmpIcon = null;

        File f=new File(file);

        if (file == null || !f.exists()) {

            return null;

        }

        if (new File(file).isFile()) {

            setPath(file);

            String iString = file.toLowerCase();

            if (iString.endsWith("jpg") || iString.endsWith("jpeg") ||

                    iString.endsWith("gif")) {

                tmpIcon = new ImageIcon(Jimi.getImage(file, Jimi.VIRTUAL_MEMORY)); //((File)main.allImages.elementAt(x)).getAbsolutePath());

            } else if (iString.endsWith("png") || iString.endsWith("tif") ||

                    iString.endsWith("ico") || iString.endsWith("xpm") ||

                    iString.endsWith("bmp")) {

                tmpIcon = new ImageIcon(Jimi.getImage(file, Jimi.VIRTUAL_MEMORY)); //new ImageIcon(f.getPath());

            } else if (iString.endsWith("svg")) {

                isSVG = true;

                obtainStaticRenderer(new File(file));

            }else {

                tmpIcon=new ImageIcon(file);

            }

        }

        if (!isSVG && (tmpIcon != null)) {

            Image image = tmpIcon.getImage();

            if (image.getWidth(null)==-1 || image.getHeight(null)==-1){

                    NotificationManager.showMessageError(PluginServices.getText(this,"unsupported_format"), new Exception());

                    return null;

            }

            BufferedImage bi = new BufferedImage(image.getWidth(null),

                    image.getHeight(null), BufferedImage.TYPE_INT_ARGB);

            Graphics2D biContext = bi.createGraphics();

            biContext.drawImage(image, 0, 0, null);

            setImage(bi);

            return image;

        }

        return null;

    }

    /**

     * Obtiene el renderer para svg a partir del svg.

     *

     * @param file Nombre del fichero.

     */

    private void obtainStaticRenderer(File file) {

        try {

            UserAgentAdapter userAgent = new UserAgentAdapter();

            DocumentLoader loader = new DocumentLoader(userAgent);

            BridgeContext ctx = new BridgeContext(userAgent, loader);

            Document svgDoc = loader.loadDocument(file.toURI().toString());

            gvtRoot = gvtBuilder.build(ctx, svgDoc);

            renderer.setTree(gvtRoot);

            elt = ((SVGDocument) svgDoc).getRootElement();

            elt.getNodeName();

            elt.getNodeType();

            elt.getNodeValue();

            ctx =  new BridgeContext(userAgent, loader);

        } catch (Exception ex) {

            ex.printStackTrace();

        }

    }

    /**

     * Incorpora los atributos del XMLEntity en el objeto actual.

     *

     * @param xml XMLEntity

     * @param l Referencia al Layout.

     */

    public void setXMLEntity03(XMLEntity xml, Layout l) {

        if (xml.getIntProperty("m_Selected") != 0) {

            this.setSelected(true);

        } else {

            this.setSelected(false);

        }

        this.m_path = PathGenerator.getInstance().getAbsolutePath(xml.getStringProperty("m_path"));

        try {

            load(this.m_path);

        } catch (Exception ex) {

            NotificationManager.addError("Excepci?n :", ex);

        }

        this.m_quality = xml.getIntProperty("m_quality");

        this.m_viewing = xml.getIntProperty("m_viewing");

    }

    /**

     * Incorpora los atributos del XMLEntity en el objeto actual.

     *

     * @param xml XMLEntity

     */

    public void setXMLEntity(XMLEntity xml) {

        if (xml.getIntProperty("m_Selected") != 0) {

            this.setSelected(true);

        } else {

            this.setSelected(false);

        }

        this.m_path = PathGenerator.getInstance().getAbsolutePath(xml.getStringProperty("m_path"));

        try {

            load(this.m_path);

        } catch (Exception ex) {

            NotificationManager.addError("Excepci?n :", ex);

        }

        this.m_quality = xml.getIntProperty("m_quality");

        this.m_viewing = xml.getIntProperty("m_viewing");

        setRotation(xml.getDoubleProperty("m_rotation"));

    }

    /**

     * @see com.iver.cit.gvsig.project.documents.layout.fframes.IFFrame#getNameFFrame()

     */

    public String getNameFFrame() {

        return PluginServices.getText(this, "imagen")+ num;

    }

    public void initialize() {

        // TODO Auto-generated method stub

    }

    public void cloneActions(IFFrame frame) {

       m_image=null;

    }

        public IFFrameDialog getPropertyDialog() {

                return new FFramePictureDialog(getLayout(), this);

        }

        public void print(Graphics2D g, AffineTransform at, FShape shape, PrintRequestAttributeSet properties) {

                draw(g, at, null, null);

        }

}