AnimationViewer.java

/*
 *    ==========================================================================================
 *    AnimationViewer.java : Moves shapes around on the screen according to different paths.
 *    It is the main drawing area where shapes are added and manipulated.
 *  NAME: JANHAV KHANNA
 *  YOUR UPI: JKHA639
 *  DATE: 20/05/21
 *  DESCRIPTION: This is the animationviewer class which handles the drawing, movement, addition of shapes and painting of each shape that is being added to the program.
 *    ==========================================================================================
 */
import javax.swing.*;
import java.awt.*;
import java.util.*;
import java.awt.event.*;

public class AnimationViewer extends JComponent implements Runnable {
	private Thread animationThread = null;    // the thread for animation
    private static int DELAY = 20;         // the current animation speed
	private ArrayList<Shape> shapes = new ArrayList<Shape>(); //create the ArrayList to store shapes
	private Painter painter = new GraphicsPainter();
	private ShapeType currentShapeType=Shape.DEFAULT_SHAPETYPE; // the current shape type,
	private PathType currentPathType=Shape.DEFAULT_PATHTYPE;  // the current path type
	private Color currentBorderColor=Shape.DEFAULT_BORDER_COLOR, currentFillColor=Shape.DEFAULT_FILL_COLOR;  // the current fill colour of a shape
	private int marginWidth=Shape.DEFAULT_MARGIN_WIDTH, marginHeight=Shape.DEFAULT_MARGIN_HEIGHT, currentWidth=Shape.DEFAULT_WIDTH, currentHeight=Shape.DEFAULT_HEIGHT;
	private String currentText=Shape.DEFAULT_TEXT;

     /** Constructor of the AnimationPanel */
    public AnimationViewer(boolean isGraphicsVersion) {
		if (isGraphicsVersion) {
			start();
			addMouseListener(new MyMouseAdapter());
		}
    }

    /** create a new shape
     * @param x     the x-coordinate of the mouse position
     * @param y    the y-coordinate of the mouse position */
    protected void createNewShape(int x, int y) {
        switch (currentShapeType) {
            case RECTANGLE: {
                shapes.add( new RectangleShape(x, y,currentWidth,currentHeight,marginWidth,marginHeight,currentBorderColor,currentFillColor,currentPathType,currentText) );
                break;
            } case XRECTANGLE: {
                shapes.add( new XRectangleShape(x, y,currentWidth,currentHeight,marginWidth,marginHeight,currentBorderColor,currentFillColor,currentPathType,currentText) );
                   break;
           } case OVAL: {
                shapes.add(new OvalShape(x,y,currentWidth,currentHeight,marginWidth,marginHeight,currentBorderColor,currentFillColor,currentPathType,currentText));
                break;
           } case SQUARE: {
                shapes.add(new SquareShape(x,y,Math.min(currentWidth,currentHeight),marginWidth,marginHeight,currentBorderColor,currentFillColor,currentPathType,currentText));
                break;
            } case NESTED: {
                shapes.add(new NestedShape(x,y,currentWidth,currentHeight,marginWidth,marginHeight,currentBorderColor,currentFillColor,currentPathType,currentText));
                break;
            }
        }
    }
    /**    move and paint all shapes within the animation area
     * @param g    the Graphics control */
    public void paintComponent(Graphics g) {
        painter.setGraphics(g);
        super.paintComponent(g);
        for (Shape currentShape: shapes) {
            currentShape.move();
            currentShape.draw(painter);
            currentShape.drawHandles(painter);
            currentShape.drawCenteredText(painter);
        }
    }
	public String getCurrentText(){
        return this.currentText;
    }
	public void setCurrentText(String text){
    this.currentText = text;
    for (Shape currentShape: shapes){
        if (currentShape.isSelected())
        currentShape.setText(text);
    }
    }
	
    public ShapeType getCurrentShapeType() { return currentShapeType; }
    public void setCurrentShapeType(int st) {
		currentShapeType = ShapeType.getShapeType(st);
	}
	public PathType getCurrentPathType() { return currentPathType; }
	public void setCurrentPathType(int pt) {
		currentPathType = PathType.getPathType(pt);
	}
	/** get the current width
	 * @return currentWidth - the width value */
	public int getCurrentWidth() { return currentWidth; }
	/** set the current width and the width for all currently selected shapes
	 * @param w	the new width value */
	public void setCurrentWidth(int w) {
		currentWidth = w;
		for (Shape currentShape: shapes)
			if ( currentShape.isSelected())
				currentShape.setWidth(currentWidth);
	}
	/** get the current height
	 * @return currentHeight - the height value */
	public int getCurrentHeight() { return currentHeight; }
	/** set the current height and the height for all currently selected shapes
	 * @param h	the new height value */
	public void setCurrentHeight(int h) {
		currentHeight = h;
		for (Shape currentShape: shapes)
			if ( currentShape.isSelected())
				currentShape.setHeight(currentHeight);
	}

	/** get the current border colour
	 * @return currentBorderColor - the border colour value */
	public Color getCurrentBorderColor() { return currentBorderColor; }
 	/** set the current border colour and the border colour for all currently selected shapes
	 * @param bc	the new border colour value */
	public void setCurrentBorderColor(Color bc) {
		currentBorderColor = bc;
		for (Shape currentShape: shapes)
			if ( currentShape.isSelected())
				currentShape.setBorderColor(currentBorderColor);
	}

	/** get the current fill colour
	 * @return currentFillColor - the fill colour value */
	public Color getCurrentFillColor() { return currentFillColor; }
    /** set the current fill colour and the border colour for all currently selected shapes
     * @param bc    the new fill colour value */
    public void setCurrentFillColor(Color fc) {
        currentFillColor = fc;
        //complete this
		for (Shape currentShape: shapes)
			if ( currentShape.isSelected())
				currentShape.setFillColor(currentFillColor);
    }
    class MyMouseAdapter extends MouseAdapter {
		public void mouseClicked( MouseEvent e ) {
			boolean found = false;
			for (Shape currentShape: shapes)
				if ( currentShape.contains( e.getPoint()) ) { // if the mousepoint is within a shape, then set the shape to be selected/deselected
					currentShape.setSelected( ! currentShape.isSelected() );
					found = true;
				}
			if (!found) createNewShape(e.getX(), e.getY());
		}
	}

// you don't need to make any changes after this line ______________
    /**    update the painting area
     * @param g    the graphics control */
    public void update(Graphics g){ paint(g); }
    /** reset the margin size of all shapes from our ArrayList */
    public void resetMarginSize() {
        marginWidth = getWidth();
        marginHeight = getHeight() ;
        for (Shape currentShape: shapes)
			currentShape.setMarginSize(marginWidth,marginHeight );
    }
    /**    When the "start" button is pressed, start the thread  */
    public void start() {
        animationThread = new Thread(this);
        animationThread.start();
    }
    /**    When the "stop" button is pressed, stop the thread */
    public void stop() {
        if (animationThread != null) {
            animationThread = null;
        }
    }
    /** run the animation */
    public void run() {
        Thread myThread = Thread.currentThread();
        while(animationThread==myThread) {
            repaint();
            pause(DELAY);
        }
    }
    /** Sleep for the specified amount of time */
    private void pause(int milliseconds) {
        try {
            Thread.sleep((long)milliseconds);
        } catch(InterruptedException ie) {}
    }
}