Assignment7 | Computer Science homework help

Requirements to get full credits in Documentation

1.A description of each method is also needed.

2.Some additional comments inside of methods to explain code that are hard to follow should be written.

You can look at the Java programs in the text book to see how comments are added to programs.

Minimal Submitted Files

You are required, but not limited, to turn in the following source files:

Assignment7.java (No need to be changed) 

DrawingPane.java —   to be completed.

You may add more classes or more methods than the specified ones. (You might need them.)

Skills to be Applied:

JavaFX

Classes may be needed:  

Button, ComboBox, Color, Graphics, Line, ActionHandler, MouseHandler. You may use other classes.

Here is Assignment7.java:

 

import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;

public class Assignment7 extends Application
{
  public void start(Stage primaryStage)
  {
     //create a DrawPane object. See DrawPane.java for details.
     DrawingPane gui = new DrawingPane();
  
     //put gui on top of the rootPane
     StackPane rootPane = new StackPane();
     rootPane.getChildren().add(gui);
  
     // Create a scene and place rootPane in the stage
     Scene scene = new Scene(rootPane, 600, 400);
     primaryStage.setTitle("Line Drawing");
     primaryStage.setScene(scene); // Place the scene in the stage
     primaryStage.show(); // Display the stage
  }
  public static void main(String[] args)
  {
     Application.launch(args);
  }
}

Here is DrawingPane.java (This is a semi-finished product, you need to add):

//import any classes necessary here
//----
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.shape.Line;
import javafx.scene.paint.Color;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.geometry.Orientation;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.input.MouseEvent;

import java.util.ArrayList;

public class DrawingPane extends BorderPane
{
  private Button undoButton, eraseButton;
  private ComboBox<String> colorCombo, widthCombo;
  private ArrayList<Line> lineList;
  private Pane canvas;
  //declare any other necessary instance variables here
  //----
   
  //Constructor

  public DrawingPane()
  {
     //Step #1: initialize instance variable and set up layout
     undoButton = new Button("Undo");
     eraseButton = new Button("Erase");
     undoButton.setMinWidth(80.0);
     eraseButton.setMinWidth(80.0);

     //Create the color comboBox and width comboBox,
     //----
      
      
     //initialize lineList, it is a data structure we used
     //to track the lines we created
     //----
      
     //topPane should contain two combo boxes and two buttons
     HBox topPane = new HBox();
     topPane.setSpacing(40);
     topPane.setPadding(new Insets(10, 10, 10, 10));
     topPane.setStyle("-fx-border-color: black");
      
      //canvas is a Pane where we will draw lines
     canvas = new Pane();
     canvas.setStyle("-fx-background-color: white;");
      

      
     //add the canvas at the center of the pane and top panel
     //should have two combo boxes and two buttons
     this.setCenter(canvas);
     this.setTop(topPane);

      
     //Step #3: Register the source nodes with its handler objects
     canvas.setOnMousePressed(new MouseHandler());
     //----
     //----
  }

   //Step #2(A) - MouseHandler
   private class MouseHandler implements EventHandler<MouseEvent>
   {
       public void handle(MouseEvent event)
       {
           //handle MouseEvent here
           //Note: you can use if(event.getEventType()== MouseEvent.MOUSE_PRESSED)
           //to check whether the mouse key is pressed, dragged or released
           //write your own codes here
           //----
           
           
           
           
           
       }//end handle()
   }//end MouseHandler

   //Step #2(B)- A handler class used to handle events from Undo & Erase buttons
   private class ButtonHandler implements EventHandler<ActionEvent>
   {
       public void handle(ActionEvent event)
       {
           //write your codes here
           //----
           
           
           
       }
   }//end ButtonHandler

  //Step #2(C)- A handler class used to handle colors
  private class ColorHandler implements EventHandler<ActionEvent>
  {
      public void handle(ActionEvent event)
      {
          //write your own codes here
          //----
          
          
          
      }
  }//end ColorHandler
   
   //Step #2(D)- A handler class used to handle widths of lines
   private class WidthHandler implements EventHandler<ActionEvent>
   {
       public void handle(ActionEvent event)
       {
           //write your own codes here
           //----
           
           
           
       }
   }//end WidthHandler
}//end class DrawingPane

The remail details is in the picture file.

EduPacers
Calculate your paper price
Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

Professional and Experienced Academic Writers

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

Essays

Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

Admissions

Admission Essays & Business Writing Help

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

Reviews

Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

Reviews

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.