Application: gvSIG desktop » gvSIG tools: Vector editing

package org.gvsig.vectorediting.lib.prov.editvertex.operation;

import java.util.ArrayList;

import java.util.List;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.exception.CreateGeometryException;

import org.gvsig.fmap.geom.primitive.Circle;

import org.gvsig.fmap.geom.primitive.Point;

import org.gvsig.fmap.geom.primitive.Primitive;

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;

import org.gvsig.vectorediting.lib.spi.DefaultDrawingStatus;

import org.gvsig.vectorediting.lib.spi.EditingProviderLocator;

import org.gvsig.vectorediting.lib.spi.EditingProviderManager;

public class CircleEditVertexOperation implements EditVertexOperation {

    public CircleEditVertexOperation() {

        // TODO Auto-generated constructor stub

    }

    @Override

    public Geometry insertVertex(Primitive geom, int index)

        throws CreateGeometryException {

        return null;

    }

    @Override

    public Geometry removeVertex(Primitive geom, int index)

        throws CreateGeometryException {

        return null;

    }

    @Override

    public Geometry moveVertex(Primitive geom, int index, Point point) {

        Circle result = (Circle) geom.cloneGeometry();

        if(index == 0){

            result.setPoints(point, ((Circle)geom).getRadious());

        } else if (index == 1){

            result.setPoints(((Circle)geom).getCenter(), point);

        }

        return result;

    }

    @Override

    public List<Point> getVertexesList(Primitive geom) throws CreateGeometryException {

        GeometryManager geometryManager = GeometryLocator.getGeometryManager();

        ArrayList<Point> vertexList = new ArrayList<>();

        Circle circle = (Circle) geom;

        Point center = circle.getCenter();

        vertexList.add(center);

        vertexList.add(geometryManager.createPoint(center.getX()

            + circle.getRadious(), center.getY(), geom

            .getGeometryType().getSubType()));

        return vertexList;

    }

    @Override

    public int getNumVertex(Primitive geom) {

        return 2;

    }

    @Override

    public boolean canInsertVertex(Primitive geom, int index) {

        return false;

    }

    @Override

    public boolean canRemoveVertex(Primitive geom, int index) {

        return false;

    }

    @Override

    public boolean canMoveVertex(int index, Point point) {

        return true;

    }

    @Override

    public void addToDrawingStatus(DefaultDrawingStatus drawingStatus,

        Primitive primitive) {

        GeometryManager geometryManager = GeometryLocator.getGeometryManager();

        EditingProviderManager editingProviderManager =

            EditingProviderLocator.getProviderManager();

        ISymbol polygonSymbolEditing =

            editingProviderManager.getSymbol("polygon-symbol-editing");

        drawingStatus.addStatus(primitive, drawingStatus.getPreviewSymbol(), "");

        drawingStatus.addStatus(primitive, polygonSymbolEditing, "");

    }

}