Revision 11192 trunk/libraries/libFMap/src/com/iver/cit/gvsig/fmap/rendering/styling/LinePlacementConstraints.java
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* |
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* $Id$ |
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* $Log$ |
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* Revision 1.6 2007-04-12 16:01:11 jaume
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* Revision 1.7 2007-04-13 11:59:30 jaume
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* *** empty log message *** |
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* |
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* Revision 1.6 2007/04/12 16:01:11 jaume |
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* *** empty log message *** |
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* |
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* Revision 1.5 2007/04/12 14:28:43 jaume |
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* basic labeling support for lines |
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* |
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package com.iver.cit.gvsig.fmap.rendering.styling; |
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import java.awt.Graphics2D; |
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import java.awt.Rectangle; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Point2D; |
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import java.awt.image.AffineTransformOp; |
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import org.apache.batik.ext.awt.geom.PathLength; |
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import org.cresques.px.gml.MultiPolygon; |
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import com.iver.cit.gvsig.fmap.core.FPoint2D; |
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import com.iver.cit.gvsig.fmap.core.FShape; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.utiles.XMLEntity; |
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/** |
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* |
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* @author jaume dominguez faus - jaume.dominguez@iver.es |
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public FShape[] getLocationsFor(IGeometry geom, FShape labelShape, MultiPolygon exclusionZone) {
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return new FShape[] { (FShape) geom.getInternalShape() };
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} |
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public void placeLabel(Graphics2D g, IGeometry geom, LabelClass lc, MultiPolygon exclusionZone, AffineTransform at, String[] labelTexts) {
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Point2D startingPoint = null; |
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double rot = 0; |
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public void placeLabel(Graphics2D g, IGeometry geom, LabelClass lc, MultiPolygon exclusionZone, AffineTransform at) {
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Rectangle labelBounds = lc.getShape(g, at, geom).getBounds(); |
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FPoint2D startingPoint = null; |
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double theta = 0; |
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if (isFollowingLine()) {
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throw new Error("following line option not yet implemented");
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// 1. create text path |
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distance = pathLen.lengthOfPath() * 0.5F; |
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} |
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startingPoint = pathLen.pointAtLength(distance);
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startingPoint = new FPoint2D(pathLen.pointAtLength(distance));
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if (isParallel()) {
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// get the line theta and apply it |
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rot = pathLen.angleAtLength(distance);
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theta = -pathLen.angleAtLength(distance);
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} else if (isPerpendicular()) {
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// get the line theta with 90 degrees |
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rot = pathLen.angleAtLength(distance) + HALF_PI;
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theta = -pathLen.angleAtLength(distance) + HALF_PI;
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} |
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} |
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// Offset to be on bellow of the line. |
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} else if (isAboveTheLine()) {
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// Offset to be above the line (inverse offset to under the line) |
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} else {
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// No offset. |
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} |
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/* |
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* Now, we'll need to see who is defining the orientation |
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* either the line or the page. |
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// will be better handled by a SmartLinePlacement |
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throw new Error("overlapping detection option not yet implemented");
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} |
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AffineTransform old = g.getTransform(); |
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// g.transform(despla?ament, rotaci?, orientaci?) |
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lc.drawInsideRectangle(g, lc.getShape(g, at, geom).getBounds()); |
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// g.transform(old) |
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startingPoint.transform(at); |
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labelBounds.setLocation(0-(int) (labelBounds.width*.5), 0 - (int) (labelBounds.height*.5)); |
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g.translate((int) startingPoint.getX(), (int) startingPoint.getY()); |
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if (theta != 0) {
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g.rotate(theta); |
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} |
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lc.drawInsideRectangle(g, labelBounds); |
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if (theta != 0) {
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g.rotate(-theta); |
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} |
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g.translate(-(int) startingPoint.getX(), -(int) startingPoint.getY()); |
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} |
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public String getClassName() {
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return getClass().getName(); |
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} |
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public XMLEntity getXMLEntity() {
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XMLEntity xml = super.getXMLEntity(); |
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xml.putProperty("className", getClassName());
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return xml; |
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} |
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} |
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