// ColorCmd.java
// Command class to perform a color-change command.

// Written by THC for CS 5 Lab Assignment 3.

import java.awt.*;

public class ColorCmd extends Command {
  // When the mouse is clicked, find the frontmost Shape in the drawing
  // that contains the mouse position. If there is such a Shape, then
  // have it change its color.
  // By the time the mouse is clicked for a color-changing command, the
  // drawing's default color has already been updated. So we can use
  // that to determine what color to set the Shape.
  public void executeClick(Point p, Drawing dwg) {
    // Find the frontmost Shape containing p.
    Shape s = dwg.getFrontmostContainer(p);

    if (s != null) // was there a Shape containing p?
      s.setColor(dwg.getColor()); // yes, change its color
  }
}