/* Copyright 2010 ESRI
* 
* All rights reserved under the copyright laws of the United States
* and applicable international laws, treaties, and conventions.
* 
* You may freely redistribute and use this sample code, with or
* without modification, provided you include the original copyright
* notice and use restrictions.
* 
* See the use restrictions.
* 
*/
package arcgissamples.addins.tool;

import java.awt.event.MouseEvent;

import com.esri.arcgis.addins.desktop.Tool;
import com.esri.arcgis.arcmapui.IMxDocument;
import com.esri.arcgis.carto.IElement;
import com.esri.arcgis.carto.PolygonElement;
import com.esri.arcgis.display.IRubberBand;
import com.esri.arcgis.display.IScreenDisplay;
import com.esri.arcgis.display.ISimpleFillSymbol;
import com.esri.arcgis.display.ISymbol;
import com.esri.arcgis.display.RubberPolygon;
import com.esri.arcgis.display.SimpleFillSymbol;
import com.esri.arcgis.framework.IApplication;
import com.esri.arcgis.geometry.IPolygon;

public class DrawPolygonGraphicsTool extends Tool {
  IScreenDisplay screenDisplay;
  IRubberBand rubberPolygon;
  IPolygon polygon;
  IApplication app;
  IMxDocument mxDoc;
  
  // Called when the tool is activated by clicking it
  @Override
  public void activate() {
  }
  
  // Returns whether this tool is checked
  public boolean isChecked() {
    return false;
  }
  
  // Returns whether this tool is enabled
  public boolean isEnabled() {
    return true;
  }
  
  // Called when the mouse is moved while the tool is active
  @Override
  public void mouseMoved(MouseEvent me) {
  }
  
  // Called when a mouse tool is pressed while the tool is active
  @Override
  public void mousePressed(MouseEvent me) {
      try
      {
        mxDoc = (IMxDocument) app.getDocument();
        IPolygon polygon=getPolygon();
        IElement element=new PolygonElement();
        element.setGeometry(polygon);
        element.activate(mxDoc.getActiveView().getScreenDisplay());
        mxDoc.getActiveView().getGraphicsContainer().addElement(element,0);
        mxDoc.getActiveView().refresh();
      }
      catch(Exception ex)
      {
        ex.printStackTrace();
      }
  }
  
  // Initializes this tool with the ArcGIS application it is hosted in
  @Override
  public void init(IApplication app) {
    this.app = app;
  }

  // Create a polygon filled with a  blue color.  
  public IPolygon getPolygon() throws Exception{
    
    ISimpleFillSymbol fillSymbol=new SimpleFillSymbol();
      screenDisplay = mxDoc.getActiveView().getScreenDisplay();
      rubberPolygon = new RubberPolygon();
      polygon = (IPolygon) rubberPolygon.trackNew(screenDisplay, (ISymbol) fillSymbol);
        return polygon;
  }
  
}