Natour, O. 9/16/16 Csc-220 Ugly Numbers

/*
 * Omar Natour
 * 9/16/2016
 * Csc-220 Data Structures
 * Hw1 Ugly Number Table
 * Take in a starting and ending range and display all ugly numbers within that range.
 * Ojnatour0001@student.stcc.edu
 */

import java.util.ArrayList;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.*;
import javafx.scene.control.Button;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Text;
import javafx.stage.Stage;

public class UglyNumbers extends Application {
    public static void main(String[] args) {
        launch(args);
    }

    static TextArea taOut = new TextArea();

    public void start(Stage primaryStage) {

        BorderPane Gui = new BorderPane();

        Gui.setTop(intro());
        Gui.setCenter(header());
        Gui.setBottom(output());

        Scene sce = new Scene(Gui, 650, 300, Color.BLUE);

        primaryStage.setTitle("Ugly Numbers");
        primaryStage.setScene(sce);
        primaryStage.show();
        primaryStage.setResizable(false);
    }

    private Node intro() {
        HBox hbIntro = new HBox();
        hbIntro.setPrefHeight(10);

        Text tIntro = new Text(
                "Enter the starting and ending value for the range of numbers to be searched for ugly numbers.");

        hbIntro.setAlignment(Pos.CENTER);
        hbIntro.getChildren().add(tIntro);
        return hbIntro;
    }

    private Node header() {

        HBox HBtopper = new HBox(10);

        TextField tfStart = new TextField();
        TextField tfEnd = new TextField();
        Text tStart = new Text("Start:");
        Text tEnd = new Text("End:");

        Button btGo = new Button("GO!");

        EventHandler<ActionEvent> Go = e -> {
            String sStart = tfStart.getText();
            String sEnd = tfEnd.getText();

            int iStart;
            int iEnd;

            if (sStart.matches("(\\d+)") && sEnd.matches("(\\d+)")) {
                iStart = Integer.parseInt(sStart);
                iEnd = Integer.parseInt(sEnd);
                findUglys(iStart, iEnd);
            } else {
                taOut.setText("You've made a grave mistake");
            }
        };

        btGo.setOnAction(Go);

        HBtopper.setAlignment(Pos.CENTER);
        HBtopper.getChildren().addAll(tStart, tfStart, tEnd, tfEnd, btGo);

        return HBtopper;
    }

    private Node output() {

        HBox HBmiddle = new HBox();

        taOut.setPrefColumnCount(40);
        taOut.setPrefHeight(200);

        HBmiddle.setAlignment(Pos.CENTER);
        HBmiddle.getChildren().add(taOut);

        return HBmiddle;
    }

    ///////// GUI//////////^^^
    //////// LOGIC/////////vvv

    // Professor Silvestri's prime number identification method, taken from his
    // method library.
    public static boolean isPrime(int number) {

        int upperFactorLimit = (int) Math.sqrt(number);

        for (int divisor = 2; divisor <= upperFactorLimit; divisor++) {
            if (number % divisor == 0)
                return false;
        }
        return true;
    }

    static ArrayList<Integer> findFactors(int factoree) {

        ArrayList<Integer> factors = new ArrayList<Integer>();

        for (int i = 1; i <= factoree; i++) {
            if (factoree % i == 0)
                factors.add(i);
        }
        return factors;
    }

    static ArrayList<Integer> findPrimeFactors(ArrayList<Integer> factors) {

        ArrayList<Integer> primeFactors = new ArrayList<Integer>();

        for (int i = 0; i < factors.size(); i++) {
            if (isPrime(factors.get(i)) || factors.get(i) == 1)
                primeFactors.add(factors.get(i));
        }
        return primeFactors;
    }

    static boolean isUgly(int num) {

        ArrayList<Integer> primeFactors1 = findPrimeFactors(findFactors(num));

        if (primeFactors1.size() <= 0) {
            return false;
        }

        for (int i = 0; i < primeFactors1.size(); i++) {
            int current = primeFactors1.get(i);

            if ((current != 2 && current != 3 && current != 5 && current != 1))
                return false;
        }
        return true;
    }

    static void findUglys(int start, int end) {

        String Uglys = "";
        int count = 0;

        for (int i = start; i <= end; i++) {
            if (isUgly(i)) {
                count++;
                if (count % 5 == 0) {
                    Uglys += String.format("%-6d", i);
                    Uglys += ("\n");
                } else
                    Uglys += String.format("%-6d", i);
            }

        }
        taOut.setText(Uglys);
    }

}