myrectangle.java

来自「32个java程序源代码」· Java 代码 · 共 43 行

// Exercise 27.16: MyRectangle.java
// Class that declares an rectangle object.
import java.awt.*;

public class MyRectangle extends MyMovingShape  
{
   // constructor
   public MyRectangle( int firstX, int firstY, int secondX,
      int secondY, Color shapeColor )
   {
      super( firstX, firstY, secondX, secondY, shapeColor );

   } // end constructor

   // draw the rectangle
   public void draw( Graphics g )
   {
      int upperLeftX = Math.min( getX1(), getX2() );
      int upperLeftY = Math.min( getY1(), getY2() );
      int width = Math.abs( getX1() - getX2() );
      int height = Math.abs( getY1() - getY2() );

      g.setColor( getColor() );
      g.fillRect( upperLeftX, upperLeftY, width, height );

   } // end method draw

} // end class MyRectangle

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