package stack;

import java.awt.Color;

import java.awt.Dimension;

import java.awt.Graphics;

import java.awt.event.ActionEvent;

import javax.swing.$*$;

$/*$

$*$ CS$112$ Stack Lab

$*$

$*$ Implement push$()$ and pop$()$ using an array based

$*$ stack of strings to implement the ice cream display

$*$

$*$ @author Colin Sullivan

$*/$

public class IceCreamStack $\{$

$//$ Array representing a stack. Index $0$ is the bottom of the stack.

private String$[]$ iceCreamScoops;

$//$ First open spot in the stack array

private int next;

$/*$

$*$ Default constructor for an empty stack with a capacity of $3$

$*/$

public IceCreamStack$()\{$

iceCreamScoops $=$ new String$[3]$;

next $=0$;

$\}$

$/*$

$*$ Resize method which will double the capacity of the stack

$*$ and Copy all elements

$*$

$*1)$ Create a new String array, with its size double the current

$*$ iceCreamScoops array size

$*$

$*2)$ For each index in iceCreamScoops, copy the item at that index

$*$ to the same index in the new doubled array

$*$

$*3)$ Set the class attribute $($this$.$iceCreamScoops$)$ equal to your

$*$ new doubled array

$*/$

public void resize$()\{$

$//$ WRITE YOUR CODE HERE

$\}$

$/*$

$*$ Given a String flavor, push it onto the Stack

$*$

$*$ The class variable "next" is equivalent to the first

$*$ empty spot in the stack array.

$*$

$*$ Therefore, next$-1$ is the top of the stack

$*$

$*1)$ If the stack is full $($next $==$ array length$),$ call resize$()$ to double it

$*2)$ Place the string at 'next' index in the array, and increment next by one.

$*/$

public void push$($String flavor$)\{$

$//$ WRITE YOUR CODE HERE

$\}$

$/*$

$*$ Pop and return the top item of the stack

$*$

$*1)$ If the stack is empty $($next $<=0),$ return null

$*2)$ E$``$

public String pop$()\{$

if $($next $<=0)\{$

return null;

$\}$

String flavor $=$ iceCreamScoops$[--$next$]$;

return flavor;

$\}$

$/*$

$*$ Since the array is zero$-$indexed, next $==$ numScoops

$*$

$*$ @returns number of scoops

$*/$

public int getScoops$()\{$

return next;

$\}$

$/*$

$*////////////////////////////////////////////////////////////////$

$*$ Everything past here runs the driver, no need to modify anything

$*////////////////////////////////////////////////////////////////$

$*/$

private class IceCreamPanel extends JPanel $\{$

private IceCreamPanel$()\{$

super$()$;

$\}$

@Override

public void paintComponent$($Graphics g$)\{$

super.paintComponent$($g$)$;

int coneX $=$ iceCreamDisplay.getWidth$()/2$;

int coneY $=280$;

for $($int scoop $=$ next $-1$; scoop $>=0$; scoop$--)\{$

Color c $=($iceCreamScoops$[$scoop$].$equals$("$chocolate$"))?($new Color$(168,125,70))$

: $(($iceCreamScoops$[$scoop$].$equals$("$strawberry$"))?($new Color$(255,153,255))$

: $($new Color$(250,250,232)))$;

g$.$setColor$($c$)$;

g$.$fillOval$($coneX $-50,($coneY $-110)-100,100,100)$;

coneY $+=50$;

$\}$

g$.$setColor$($new Color$(124,74,9))$;

int coneXPoints$[]=\{$ coneX, coneX $-50,$ coneX $+50\}$;

int coneYPoints$[]=\{$ coneY, coneY $-190,$ coneY $-190\}$;

g$.$fillPolygon$($coneXPoints$,$ coneYPoints, coneXPoints.length$)$;

this.setPreferredSize$($new Dimension$(300,($next $*50)+400))$;

$\}$

$\}$

private IceCreamPanel iceCreamDisplay;

public String$[]$ getScoopArray$()\{$

return this.iceCreamScoops;

$\}$

public void Driver$()\{$

JFrame display $=$ new JFrame$("$Ice Cream Stack Lab"$)$;

display.setDefaultCloseOperation$($JFrame$.$EXIT$\_$ON$\_$CLOSE$)$;

JPanel window $=$ new JPanel$()$;

window.setLayout$($new BoxLayout$($window$,$ BoxLayout.PAGE$\_$AXIS$))$;

iceCreamDisplay $=$ new IceCreamPanel$()$;

JScrollPane scroll $=$ new JScrollPane$($iceCreamDisplay$,$ ScrollPaneConstants.VERTICAL$\_$SCROLLBAR$\_$AS$\_$NEEDED,

ScrollPaneConstants.HORIZONTAL$\_$SCROLLBAR$\_$NEVER$)$;

JPanel controls $=$ new JPanel$()$;

controls.setLayout$($new BoxLayout$($controls$,$ BoxLayout.PAGE$\_$AXIS$))$;

JPanel button $=$ new JPanel$()$;

JPanel line $=$ new JPanel$()$;

JLabel numberScoops $=$ new JLabel$("$Number of Scoops: $"+$ this.getScoops$())$;

JButton addVanilla $=$ new JButton$("$Add Vanilla"$)$;

addVanilla.addActionListener$(($ActionEvent e$)->\{$

this.push$("$vanilla$")$;

int scoop $=$ this.getScoops$()$;

SwingUtilities.invokeLater$($new Runnable$()\{$

@Override

public void run$()\{$

numberScoops.setText$("$Number of Scoops: $"+$ scoop$)$;

iceCreamDisplay.revalidate$()$;