Client.java

// Client.java resizes a user-inputted image.
// The user can resize the image either by width or height.

// Compile Client.java after compiling SeamCarver.java
// Compile Client.java with $ javac -d . Client.java

// After SeamCarver.java and Client.java are compiled, Client
// can be ran with $ java sc.client

package sc;

import sc.SeamCarver;
import java.util.Scanner;
import edu.princeton.cs.algs4.Picture;


public class Client {
	
	static Scanner scanner = new Scanner(System.in);


	public static String mode(String input)
	{
		input = input.toLowerCase();

		if (input.equals("(h)") || input.equals("h") || input.equals("(h)eight") ||
			input.equals("height"))
		{
			return "height";
		}

		if (input.equals("(w)") || input.equals("w") || input.equals("(w)idth") ||
			input.equals("width"))
		{
			return "width";
		}

		throw new IllegalArgumentException("Invalid argument, choose either " +
			"height or width");
	}


	public static void resizeWidth(SeamCarver seamCarver)
	{
		System.out.println("Enter new width:");
		int input = Integer.parseInt(scanner.nextLine());

		// Resize image to the user-inputted width.
		Picture pic = seamCarver.resizeTo("width", input);

		// Display the image.
		pic.show();
	}


	public static void resizeHeight(SeamCarver seamCarver)
	{
		System.out.println("Enter new height:");
		int input = Integer.parseInt(scanner.nextLine());

		// Resize image to the user-inputted width.
		Picture pic = seamCarver.resizeTo("height", input);

		// Display the image.
		pic.show();
	}


	public static void main(String args[])
	{
		System.out.println("Are you decreasing the picture's (h)eight or (w)idth?");
		System.out.println("Choose one:");
		String input = scanner.nextLine();
		String mode = mode(input);

		System.out.println();

		System.out.println("Enter the the image to resize:");
		input = scanner.nextLine();
        	Picture inputImg = new Picture(input);
        	SeamCarver seamCarver = new SeamCarver(inputImg);

		if (mode.equals("width")) {
			resizeWidth(seamCarver);
		}

		if (mode.equals("height")) {
			resizeHeight(seamCarver);
		}


	}
}