Application: gvSIG desktop

* Revision 1.1.2.8  2007-02-21 07:34:09  jaume

* labeling starts working

*

* Revision 1.1.2.7  2007/02/16 10:54:12  jaume

import java.awt.geom.Point2D;

import org.apache.batik.ext.awt.geom.PathLength;

import com.iver.cit.gvsig.fmap.core.FPoint2D;

import com.iver.cit.gvsig.fmap.core.v02.FConverter;

import com.vividsolutions.jts.geom.Geometry;

import com.vividsolutions.jts.geom.Point;

	/**

	 * Draws the text according. If this symbol has the text path set, then

	 * it is used as the text line, otherwise shp <b>must be an FPoint2D</b> 

	 * indicating the starting point of the text and then the text will

	 * be renderized from there and following the rotation previously set. 

	 */

		if (textPath != null) {

			//AffineTransform at = (AffineTransform) g.getTransform().clone();

			for (int i = 0; i < text.length; i++) {

				double[] pos = textPath.nextPosForGlyph(i);

				g.translate((int) pos[0], (int) pos[1]);

				g.rotate(pos[2]);

				g.drawChars(new char[] {text[i]}, 0, 1, 0, 0);

				g.rotate(-pos[2]);

				g.translate(-(int) pos[0], -(int) pos[1]);

			}

		} else {

			Point2D p = null;

			shp.transform(affineTransform);

			double rot=0;

			switch (shp.getShapeType()) {

			case FShape.POINT:

				FPoint2D fp=(FPoint2D) shp;

				p = new Point2D.Double(fp.getX(),fp.getY());

				break;

			case FShape.LINE:

				PathLength pathLen = new PathLength(shp);

				// if (pathLen.lengthOfPath() < width / mT.getScaleX()) return;

				float midDistance = pathLen.lengthOfPath() / 2;

				p = pathLen.pointAtLength(midDistance);

				rot = pathLen.angleAtLength(midDistance);

				break;

			case FShape.POLYGON:

				Geometry geo = FConverter.java2d_to_jts(shp);

				if (geo == null) {

					return;

				}

				Point pJTS = geo.getCentroid();

				if (pJTS != null) {

					FShape pLabel = FConverter.jts_to_java2d(pJTS);

					p= new Point2D.Double(((FPoint2D) pLabel).getX(),

							((FPoint2D) pLabel).getY());

				}

				break;

			}

			g.setColor(Color.BLACK);

			g.setFont(new Font("Arial",Font.PLAIN, 10));

			g.translate(p.getX(), p.getY());

			g.rotate(rot);

			g.drawString(new String(text), 0, 0);

			g.rotate(-rot);

			g.translate(-p.getX(), -p.getY());

	public void setTextPath(TextPath textPath) {

		this.textPath = textPath;

	}