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@Snubiss
Snubiss authored May 4, 2019
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330 changes: 330 additions & 0 deletions Calculator.java
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/********************************************************************
// Calculator.java Author: Snubiss
//
// Date: March 17, 2019
// Modified: March 19, 2019
//
// Defines the instance data, constructors and associated
// methods of a calculator class object. Creates a calculator
// upon being invoked. This uses extensive amounts of JavaFX to
// produce the GUI.
//
//********************************************************************/

package basiccalculator;

import javafx.beans.value.ObservableValue;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyCode;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;


public class Calculator {

TextField bigText = new TextField();
TextField A = new TextField();
TextField action = new TextField();;
TextField B = new TextField();;
Label equals = new Label();
TextField answer = new TextField();;
VBox calcWindow;
Button[][] button = new Button[4][4];
GridPane buttonGrid = new GridPane();
String[] buttonText = {"7","4","1","CLR","8","5","2","0","9","6","3","=","+","-","x","/"};

Calculator(){

bigText.setText("0");
initiateListeners();
this.calcWindow = (VBox)getCalcWindow();
}

public VBox getCalculator(){
return calcWindow;
}

// CREATE THE CALCULATOR BOX FRAME.
private Pane getCalcWindow(){
calcWindow = new VBox();
calcWindow.setMaxWidth(401);
calcWindow.setMinWidth(401);
calcWindow.setMaxHeight(594);
calcWindow.setMinHeight(594);
calcWindow.setStyle("-fx-background-color: #3f3f3f;" +
"-fx-border-color: grey;" +
"-fx-border-width: 1;" +
"-fx-border-radius: 5 5 5 5;" +
"-fx-background-radius: 5 5 5 5;" +
"-fx-effect: dropshadow(three-pass-box, rgba(0,0,0,0.8), 10, 0, 0, 0);");
calcWindow.getChildren().addAll(textFieldLabels(), textFieldBoxes(), bigTextField(), buttonLayout());
//calcWindow.setAlignment(Pos.CENTER);
return calcWindow;
}

// CREATE THE LABELS ABOVE THE TEXTFIELDS.
private Pane textFieldLabels(){

Label firstNumber = new Label();
firstNumber.setText("A");
firstNumber.setFont(new Font(15));
firstNumber.setMaxSize(66, 20);
firstNumber.setMinSize(66, 20);
firstNumber.setStyle("-fx-text-fill: orange;");
firstNumber.setAlignment(Pos.CENTER);

Label actionLabel = new Label();
actionLabel.setText("?");
actionLabel.setFont(new Font(15));
actionLabel.setMaxSize(70, 20);
actionLabel.setMinSize(70, 20);
actionLabel.setStyle("-fx-text-fill: orange;");
actionLabel.setAlignment(Pos.CENTER);

Label secondNumber = new Label();
secondNumber.setText("B");
secondNumber.setFont(new Font(15));
secondNumber.setMaxSize(70, 20);
secondNumber.setMinSize(70, 20);
secondNumber.setStyle("-fx-text-fill: orange;");
secondNumber.setAlignment(Pos.CENTER);

Label answerLabel = new Label();
answerLabel.setText("Answer");
answerLabel.setFont(new Font(15));
answerLabel.setMaxSize(120, 20);
answerLabel.setMinSize(120, 20);
answerLabel.setStyle("-fx-text-fill: orange;");
answerLabel.setAlignment(Pos.CENTER_RIGHT);


HBox textFieldLabels = new HBox();
textFieldLabels.setPadding(new Insets(20,0,0,20));
textFieldLabels.setSpacing(10);
textFieldLabels.getChildren().addAll(firstNumber, actionLabel, secondNumber, answerLabel);
return textFieldLabels;
}

// CREATE THE TEXTFIELD BOXES.
private Pane textFieldBoxes(){

A.setMaxSize(80, 40);
A.setMinSize(80, 40);
A.setAlignment(Pos.CENTER);

action.setMaxSize(40, 40);
action.setMinSize(40, 40);
action.setAlignment(Pos.CENTER);

B.setMaxSize(80, 40);
B.setMinSize(80, 40);
B.setAlignment(Pos.CENTER);

equals.setText("=");
equals.setFont(new Font(27));
equals.setStyle("-fx-text-fill: orange;");

answer.setMaxSize(80, 40);
answer.setMinSize(80, 40);
answer.setAlignment(Pos.CENTER);


HBox textBox = new HBox();
textBox.getChildren().addAll(A, action, B, equals, answer);
textBox.setPadding(new Insets(10, 0, 0, 2));
textBox.setSpacing(20);
textBox.setAlignment(Pos.CENTER);
return textBox;
}

// CREATE THE BIGTEXTFIELD BOX.
private Pane bigTextField(){

bigText.setAlignment(Pos.CENTER_RIGHT);
bigText.setFont(new Font(70));
bigText.setPadding(new Insets(0,10,0,0));
bigText.setMaxSize(399, 100);
bigText.setMinSize(399, 100);


HBox bigTextBox = new HBox();
bigTextBox.setMaxSize(399, 100);
bigTextBox.setMinSize(399, 100);
bigTextBox.setPadding(new Insets(25, 0, 0, 0));
bigTextBox.getChildren().add(bigText);
bigTextBox.setAlignment(Pos.CENTER);
return bigTextBox;
}

// CREATE THE BUTTON GRID AND BUTTONS FOR THE CALCULATOR.
private Pane buttonLayout(){

int textCounter = 0;

for (int i = 0; i < 4; i++){
for (int j = 0; j < 4; j++){

button[i][j] = new Button();
button[i][j].setText(buttonText[textCounter]);
button[i][j].setFont(new Font(20));
button[i][j].setMinSize(95+5, 95);
button[i][j].setMaxSize(95+5, 95);
buttonGrid.add(button[i][j], i, j);
textCounter++;
}
}
buttonGrid.setAlignment(Pos.BOTTOM_CENTER);
buttonGrid.setPadding(new Insets(21, 0, 0, 0));
return buttonGrid;
}

// Add listeners to disallow the user to extend numbers out of bounds.
private void initiateListeners(){

bigText.lengthProperty().addListener((ObservableValue<? extends Number> observable, Number oldValue, Number newValue) -> {
if (newValue.intValue() > oldValue.intValue()) {
// Check if the new character is greater than LIMIT
if (bigText.getText().length() >= 10) {
bigText.setText(bigText.getText().substring(0, 10));
}
}
});

A.lengthProperty().addListener((ObservableValue<? extends Number> observable, Number oldValue, Number newValue) -> {
if (newValue.intValue() > oldValue.intValue()) {
// Check if the new character is greater than LIMIT
if (A.getText().length() >= 10) {
A.setText(A.getText().substring(0, 10));
}
}
});

B.lengthProperty().addListener((ObservableValue<? extends Number> observable, Number oldValue, Number newValue) -> {
if (newValue.intValue() > oldValue.intValue()) {
// Check if the new character is greater than LIMIT
if (B.getText().length() >= 10) {
B.setText(B.getText().substring(0, 10));
}
}
});
}

// APPLY THE MOUSE AND KEYBOARD ACTIONS TO OUR CALCULATOR.
public void addKeyBindings(Scene scene){

/////////////////////////////////////////
// //
// CLICK CONTROLS //
// //
/////////////////////////////////////////

LogicEvents logicanator = new LogicEvents();

button[0][2].setOnAction(logicanator.event1(this));
button[1][2].setOnAction(logicanator.event2(this));
button[2][2].setOnAction(logicanator.event3(this));
button[3][2].setOnAction(logicanator.eventMultiply(this));
button[0][1].setOnAction(logicanator.event4(this));
button[1][1].setOnAction(logicanator.event5(this));
button[2][1].setOnAction(logicanator.event6(this));
button[3][1].setOnAction(logicanator.eventMinus(this));
button[0][0].setOnAction(logicanator.event7(this));
button[1][0].setOnAction(logicanator.event8(this));
button[2][0].setOnAction(logicanator.event9(this));
button[3][0].setOnAction(logicanator.eventPlus(this));
button[0][3].setOnAction(logicanator.eventClear(this));
button[1][3].setOnAction(logicanator.event0(this));
button[2][3].setOnAction(logicanator.eventEquals(this));
button[3][3].setOnAction(logicanator.eventDivide(this));

/////////////////////////////////////////
// //
// KEYBOARD CONTROLS //
// //
/////////////////////////////////////////

scene.setOnKeyPressed(e -> {
if (e.getCode() == KeyCode.DIGIT1 || e.getCode() == KeyCode.NUMPAD1){
button[0][2].fire();
}
if (e.getCode() == KeyCode.DIGIT2 || e.getCode() == KeyCode.NUMPAD2){
button[1][2].fire();
}
if (e.getCode() == KeyCode.DIGIT3 || e.getCode() == KeyCode.NUMPAD3){
button[2][2].fire();
}
if (e.getCode() == KeyCode.DIGIT4 || e.getCode() == KeyCode.NUMPAD4){
button[0][1].fire();
}
if (e.getCode() == KeyCode.DIGIT5 || e.getCode() == KeyCode.NUMPAD5){
button[1][1].fire();
}
if (e.getCode() == KeyCode.DIGIT6 || e.getCode() == KeyCode.NUMPAD6){
button[2][1].fire();
}
if (e.getCode() == KeyCode.DIGIT7 || e.getCode() == KeyCode.NUMPAD7){
button[0][0].fire();
}
if (e.getCode() == KeyCode.DIGIT8 || e.getCode() == KeyCode.NUMPAD8){
button[1][0].fire();
}
if (e.getCode() == KeyCode.DIGIT9 || e.getCode() == KeyCode.NUMPAD9){
button[2][0].fire();
}
if (e.getCode() == KeyCode.DIGIT0 || e.getCode() == KeyCode.NUMPAD0){
button[1][3].fire();
}
if (e.getCode() == KeyCode.ADD || e.getCode() == KeyCode.PLUS){
button[3][0].fire();
}
if (e.getCode() == KeyCode.SUBTRACT) {
button[3][1].fire();
}
if (e.getCode() == KeyCode.DIVIDE || e.getCode() == KeyCode.SLASH) {
button[3][3].fire();
}
if (e.getCode() == KeyCode.MULTIPLY || e.getCode() == KeyCode.X) {
button[3][2].fire();
}
if (e.getCode() == KeyCode.ESCAPE || e.getCode() == KeyCode.SPACE) {
button[0][3].fire();
}
if (e.getCode() == KeyCode.ENTER) {
button[2][3].fire();
}
if (e.getCode() == KeyCode.BACK_SPACE) {
if (logicanator.cursor == 0 && bigText.getText() != null){
try{
int length = bigText.getLength();
bigText.setText(bigText.getText().substring(0,length-1));
A.setText(bigText.getText());
}
catch(StringIndexOutOfBoundsException ex){

}
}
if (logicanator.cursor == 1 && bigText.getText() != null){
try{
int length = bigText.getLength();
bigText.setText(bigText.getText().substring(0,length-1));
B.setText(bigText.getText());
}
catch(StringIndexOutOfBoundsException ex){

}
}
}
});

// Remove the default prompt from all textareas
equals.requestFocus();
}
}
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