Revision 47355 trunk/org.gvsig.desktop/org.gvsig.desktop.plugin/org.gvsig.snapping.app/org.gvsig.snapping.app.mainplugin/src/main/java/org/gvsig/app/project/documents/view/toolListeners/snapping/snappers/CentralPointSnapper.java
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package org.gvsig.app.project.documents.view.toolListeners.snapping.snappers; |
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import java.awt.geom.Point2D; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.handler.CenterHandler; |
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import org.gvsig.fmap.geom.handler.Handler; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.mapcontrol.PrimitivesDrawer; |
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import org.gvsig.fmap.mapcontrol.tools.snapping.snappers.ISnapperVectorial; |
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import org.gvsig.fmap.mapcontrol.tools.snapping.snappers.impl.AbstractSnapper; |
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*/ |
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public class CentralPointSnapper extends AbstractSnapper |
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implements ISnapperVectorial {
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/* (non-Javadoc) |
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* @see com.iver.cit.gvsig.gui.cad.snapping.ISnapper#getSnapPoint(Point2D point, |
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* IGeometry geom,double tolerance, Point2D lastPointEntered) |
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*/ |
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public Point2D getSnapPoint(Point2D point, Geometry geom, |
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@Override |
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public Point2D getSnapPoint(Point2D point, Geometry geom, |
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double tolerance, Point2D lastPointEntered) {
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Point2D resul = null; |
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Envelope envelope = geom.getEnvelope(); |
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Point2D.Double center = new Point2D.Double(envelope.getCenter(Geometry.DIMENSIONS.X), |
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envelope.getCenter(Geometry.DIMENSIONS.Y)); |
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Handler[] handlers = geom.getHandlers(Geometry.SELECTHANDLER);
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double dist = center.distance(point);
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double minDist = tolerance; |
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for (int j = 0; j < handlers.length; j++) {
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if (handlers[j] instanceof CenterHandler) {
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Point2D handlerPoint = handlers[j].getPoint(); |
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double dist = handlerPoint.distance(point); |
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if ((dist < minDist)) {
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resul = handlerPoint; |
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minDist = dist; |
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} |
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} |
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if ((dist < tolerance)) {
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resul = center; |
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} |
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return resul; |
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} |
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/* (non-Javadoc) |
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* @see com.iver.cit.gvsig.gui.cad.snapping.ISnapper#getToolTipText() |
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*/ |
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@Override |
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public String getToolTipText() {
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return Messages.getText("Central_point");
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} |
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.fmap.mapcontrol.tools.snapping.snappers.ISnapper#draw(org.gvsig.fmap.mapcontrol.PrimitivesDrawer, java.awt.geom.Point2D) |
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*/ |
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@Override |
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public void draw(PrimitivesDrawer primitivesDrawer, Point2D pPixels) {
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primitivesDrawer.setColor(getColor()); |
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int half = getSizePixels() / 2; |
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primitivesDrawer.drawOval((int) (pPixels.getX() - half), |
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(int) (pPixels.getY() - half), getSizePixels(), getSizePixels()); |
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int x1 = (int) (pPixels.getX() - half); |
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int x2 = (int) (pPixels.getX() + half); |
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int x3 = (int) pPixels.getX(); |
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int y1 = (int) (pPixels.getY() - half); |
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int y2 = (int) (pPixels.getY() + half); |
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int y3 = (int) pPixels.getY(); |
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primitivesDrawer.drawLine(x1, y3, x3, y1); |
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primitivesDrawer.drawLine(x1, y3, x3, y2); |
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primitivesDrawer.drawLine(x2, y3, x3, y1); |
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primitivesDrawer.drawLine(x2, y3, x3, y2); |
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} |
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} |
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