Source Code : Style inheritance

Java Is Open Source Programming Language You Can Download From Java and Java Libraries From http://www.oracle.com. Click Here to download
We provide this code related to title for you to solve your developing problem easily. Libraries which is import in this program you can download from http://www.oracle.com. Click Here or search from google with Libraries Name you get jar file related it

Style inheritance

import java.awt.*;

import javax.swing.*;

import no.geosoft.cc.geometry.Geometry;
import no.geosoft.cc.graphics.*;



/**
 * G demo program. Demonstrates:
 *
 * <ul>
 * <li>Nested GObject hierarchy
 * <li>Style inheritance
 * <li>Simple selection interaction
 * </ul>
 * 
 * @author <a href="mailto:jacob.dreyer@geosoft.no">Jacob Dreyer</a>
 */   
public class Demo8 extends JFrame
  implements GInteraction
{
  private GScene  scene_;
  
  
  public Demo8()
  {
    super ("G Graphics Library - Demo 8");
    setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
    
    // Create the GUI
    JPanel topLevel = new JPanel();
    topLevel.setLayout (new BorderLayout());
    getContentPane().add (topLevel);        

    JPanel buttonPanel = new JPanel();
    buttonPanel.add (new JLabel ("Button 1 to select color, button 2 to unselect"));

    JPanel graphicsPanel = new JPanel();
    topLevel.add (buttonPanel,   BorderLayout.NORTH);

    // Create the graphic canvas
    GWindow window = new GWindow();
    topLevel.add (window.getCanvas(), BorderLayout.CENTER);    
    
    // Create scene with default viewport and world extent settings
    scene_ = new GScene (window, "Scene");

    double w0[] = {0.0,    1200.0, 0.0};
    double w1[] = {1200.0, 1200.0, 0.0};
    double w2[] = {0.0,       0.0, 0.0};    
    scene_.setWorldExtent (w0, w1, w2);

    GStyle style = new GStyle();
    style.setForegroundColor (new Color (0, 0, 0));
    style.setBackgroundColor (new Color (255, 255, 255));
    style.setFont (new Font ("Dialog", Font.BOLD, 14));
    scene_.setStyle (style);
    
    // Create som graphic objects
    GObject object1 = new TestObject ("1", scene_,  500.0, 100.0);

    GObject object2  = new TestObject ("2",  object1, 250.0, 250.0);
    GObject object3  = new TestObject ("3",  object1, 500.0, 250.0);
    GObject object4  = new TestObject ("4",  object1, 625.0, 250.0);

    GObject object5  = new TestObject ("5",  object2, 150.0, 400.0);
    GObject object6  = new TestObject ("6",  object2, 250.0, 400.0);        
    GObject object7  = new TestObject ("7",  object2, 350.0, 400.0);            

    GObject object8  = new TestObject ("8",  object4, 625.0, 400.0);

    GObject object9  = new TestObject ("9",  object7, 250.0, 550.0);
    GObject object10 = new TestObject ("10", object7, 350.0, 550.0);    

    GObject object11 = new TestObject ("11", object8, 475.0, 550.0);
    GObject object12 = new TestObject ("12", object8, 600.0, 550.0);
    GObject object13 = new TestObject ("13", object8, 725.0, 550.0);
    GObject object14 = new TestObject ("14", object8, 850.0, 550.0);            

    GObject object15 = new TestObject ("15", object9, 150.0, 700.0);
    GObject object16 = new TestObject ("16", object9, 250.0, 700.0);
    GObject object17 = new TestObject ("17", object9, 350.0, 700.0);

    GObject object18 = new TestObject ("18", object13, 725.0, 700.0);            

    GObject object19 = new TestObject ("19", object17, 350.0, 850.0);

    GObject object20 = new TestObject ("20", object19, 250.0, 1000.0);
    GObject object21 = new TestObject ("21", object19, 350.0, 1000.0);
    GObject object22 = new TestObject ("22", object19, 450.0, 1000.0);        

    
    pack();
    setSize (new Dimension (500, 500));
    setVisible (true);

    window.startInteraction (this);
  }


  
  public void event (GScene scene, int event, int x, int y)
  {
    if (event == GWindow.BUTTON1_UP ||
        event == GWindow.BUTTON2_UP) {
      boolean isSelected = event == GWindow.BUTTON1_UP;

      GSegment selectedSegment = scene_.findSegment (x, y);
      if (selectedSegment == null) return;
      
      GStyle style = selectedSegment.getOwner().getStyle();
      if (style == null) return;

      if (isSelected)
        style.setBackgroundColor (new Color ((float) Math.random(),
                                             (float) Math.random(),
                                             (float) Math.random()));
      else
        style.unsetBackgroundColor();
        
      scene_.refresh();
    }
  }
  
  

  private class TestObject extends GObject
  {
    private TestObject  parent_;
    private double      x_, y_;
    private GSegment    circle_;
    private GSegment    line_;

    
    TestObject (String name, GObject parent, double x, double y)
    {
      parent_ = parent instanceof TestObject ? (TestObject) parent : null;
      
      x_ = x;
      y_ = y;

      line_ = new GSegment();
      addSegment (line_);
      
      circle_ = new GSegment();
      addSegment (circle_);

      circle_.setText (new GText (name, GPosition.MIDDLE));

      setStyle (new GStyle());
      
      parent.add (this);
    }

    
    double getX()
    {
      return x_;
    }


    double getY()
    {
      return y_;
    }
    
    
    
    public void draw()
    {
      if (parent_ != null) 
        line_.setGeometry (parent_.getX(), parent_.getY(), x_, y_);
      
      circle_.setGeometryXy (Geometry.createCircle (x_, y_, 40.0));
    }
  }
  


  public static void main (String[] args)
  {
    new Demo8();
  }
}

           
       

Thank with us