import objectdraw.*;
import java.awt.*;

/**
 * Creates a colored quilt on the screen.
 */
public class QuiltEvents extends FrameWindowController {

    private static final int WINDOW_SIZE = 500;
    
    private static final int NUM_QUILT_ROWS = 3;
    private static final int NUM_QUILT_COLS = 4;

    private Quilt quilt;
    
    // used to select a quilt square
    private FilledRect firstSquareSelected;
    
    // resize the window and make the quilt
    public void begin() {
        resize(WINDOW_SIZE, WINDOW_SIZE);
        quilt = new Quilt(NUM_QUILT_ROWS, NUM_QUILT_COLS, canvas);
        
    }
    
    // if the user presses on a quilt square location, get a reference
    // to that square
    public void onMousePress(Location point) {
        
        firstSquareSelected = quilt.squareSelected(point);
        
    }
    
   
    // if a square was selected has been selected on the mouse press,
    // and a square is now selected on the mouse release, change the 
    // color of the second square to that of the first
    public void onMouseRelease(Location point) {
        
        FilledRect secondSquareSelected = quilt.squareSelected(point);
        if (firstSquareSelected != null && secondSquareSelected != null) {
            secondSquareSelected.setColor(firstSquareSelected.getColor());
        }
   
    }
}