Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask C/C++ Expert


Home >> C/C++

problem 1) prepare a simple music player with playlist capabilities. You will require to be able to load in “music library” (a song list) of songs on the computer, and then permit the user to create playlist of those songs to play. A playlist is the list of songs which must be played. The order of list determines the order in which the songs must be played. One song file can be on given playlist multiple times.

To implement this functionality you should first create song class to extend the mediaItem class which is included in the supplied source. The mediaItem class has the ability to get and set the location of a .wav (audio) file and then play, pause, and stop that file. Your new class must be a child class (derived class) of mediaItem which extends its functionality to being able to store the artist name and song title with the song.

Ensure to implement your artist name and song title variables as private members of the class with get( ) and set ( ) functions to manipulate them. Add any more functions to your derived class that you see fit. Make it your own. You inherited it.
Next you must create an array or a vector of the new class you have created of length MAX_SONGS.

You will need to read in the text file that describes all the songs we are using (as describeed in the loadSongList function below) into this array. This will be your array representing your music library. You will also need to make the array of integers to store a playlist for the user. The playlist array must be the array of pointers (integers which are the array index of songs) of length MAX_PLAYLIST. These pointers must point to a song in your music library (a song list). This indirection will allow you manipulate the array pointers, while leaving your master music library array as a static structure.

You must implement the following functions in your file to make the program work:

i) bool loadSongList(string filename)

INPUTS: a string containing a path to a file to open. This value is returned from the user's selection in the open file dialog.
OUTPUTS: a boolean indicating whether or not the file could be opened correctly. This function should open a file containing a formatted list of song data. This data should be in the following format:

An integer indicating the total number of songs
An Artist
A song Title
The file's location on disk
(repeat these three the number of times indicated)
So for ex:
2 Beastie Boys
Brass Monkey
./songs/Brass_Monkey.wav Paul Simon
You Can Call Me Al
./songs/Call_Me_Al.wav

Note that each field is delimited by a newline character (\n) there CAN BE WHITESPACE in the fields! You should read all of this data into an array or a vector of song objects you create as described above.

ii) int getNumberOfSongsInSongList( )

INPUTS: NONE
OUTPUTS: An integer indicating the number of songs that are currently loaded into your song object array or vector.

iii) string getSongNameFromSongList(int songNum)

INPUTS: Integer indicating which song object (via its index in your song object array or vector)
OUTPUTS: NONE

This function must return a string in the format of: "Artist - Song Title" which corresponds to the specified song in your song list.

iv) string getSongNameFromPlaylist(int playlistSpot)

INPUTS: An integer indicating which song to return (via its spot in the playlist)
OUTPUTS: NONE

This function must return a string in the format of: "Artist - Song Title" that corresponds to the specified song in your playlist. Note that this is NOT the same thing as getSongNameFromSongList. This function is returning the song data that corresponds to the passed in spot in your playlist. As the playlist is a list of indexes in the array or vector, you will need to follow the index in the designated spot to the actual song requested.

v) void addSongToPlaylist(int songNum)

INPUTS: Integer indicating which song from the song list to add to the playlist
OUTPUTS: NONE

You must add the index to the song from your song list indicated in the argument, to your playlist array or vector.

vi) int getNumberOfSongsInPlaylist()

INPUTS: NONE
OUTPUTS: Return an integer indicating the number of songs currently in the playlist.

vii) void removeSongFromPlaylist(int playlistSpot)

INPUTS: An integer corresponding to which spot in the playlist has a song which requires to be removed
OUTPUTS: NONE

You must remove the song indicated from your playlist. Note: This doesn’t mean delete it from the song list/media library as well. Just the playlist. Again, indirection.

viii) void clearPlaylist()

INPUTS: NONE
OUTPUTS: NONE

You must reset the playlist to empty, i.e., it must be reset to contain no songs.

ix) void moveSongUpInPlaylist(int playlistSpot)

INPUTS: Integer indicating that spot in the playlist has a song which requires to be moved up.
OUTPUTS: NONE

You must swap the song indicated with the spot in the playlist above it (if there is a song above it to swap with).

x) void moveSongDownInPlaylist(int playlistSpot)

INPUTS: Integer indicating that spot in the playlist has a song which requires to be moved down.
OUTPUTS: NONE

You must swap the song indicated with the spot in the playlist below it (if there is a song below it to swap with).

xi) void playSongFromPlaylist(int playlistSpot)

INPUTS: An integer indicating which spot in the playlist has a song which requires to be played.
OUTPUTS: NONE

You must call the playMedia() function that the song specified, inherited from the mediaItem class.

xii) void pauseSongFromPlaylist(int playlistSpot)

INPUTS: An integer indicating which spot in the playlist has a song which requires to be paused.
OUTPUTS: NONE
You must call the pauseMedia() function that the song specified, inherited from mediaItem class.

xiii) void stopSongFromPlaylist(int playlistSpot)

INPUTS: An integer indicating which spot in the playlist has a song that needs to be stopped.
OUTPUTS: NONE

You must call the stopMedia() function that the song specified, inherited from the mediaItem class.

Take note of the globals.h file. You will also notice the variable SHOW_DEBUG_CONSOLE. It may be useful to see output from cout or any other standard I/O function. If you set this variable to true, you will see a console started in addition to the program GUI. You can output things here if you find it helpful.

C/C++, Programming

  • Category:- C/C++
  • Reference No.:- M95666

Have any Question? 


Related Questions in C/C++

A compiler that translates a high-level language into

A compiler that translates a high-level language into another high-level language is called a source-to-source translator. What advantages are there to using C as a target language for a compiler?

1 write a c program that allows the user to create a test

1. Write a C++ program that allows the user to create a test bank of questions 2. The program should first ask the user how many questions he or she wishes to create. 3- The user should now be prompted for all informatio ...

Assignment a random mazewrite a new c program with the

Assignment (a) Random Maze Write a new C++ program with the following functionality: The program writes a greeting on the screen. Then the program displays a maze of ASCII symbols on the screen. The maze consists of 8 ro ...

C projectphase 11- you need to take input from user study

C project Phase 1 1- You need to take input from user study year (proper value check from 1 to 4) 2- Take input semester (proper value check 1 to 8) 3- Calculate GPA (use Loop, calculate GPA for semester 1,2,3...) Exampl ...

Programming cc assignmentsyoull need to download this to

Programming C/C++ assignments You'll need to download this To write the program. The programs will be written using the Microsoft Visual C++ Express Edition IDE (Integrated Development Environment), which can be download ...

Write a program that reads numbers from cin and then sums

Write a program that reads numbers from cin and then sums them, stopping when 0 has been entered. Construct three versions of this program, using the while, do - while , and for loops. Add the following to your program: ...

Bankers algorithmimplement the bankers algorithm for

Banker's Algorithm Implement the Banker's algorithm for deadlock avoidance, that works on a given set of N processes and M resource types (N The input data and result is then displayed on the screen. You may use your pro ...

Programming in c assignmentwrite a c program that computes

Programming in C Assignment Write a C program that computes and outputs the current age of the United States in days (you can use 1776 as theUS founding year). You don't have to worry about fractional years or leap years ...

Computer scienceyou have gathered your information on the

Computer Science You have gathered your information on the AI for the Tic-Tac-Toe game and began to develop your own ways to improve it using C++. Now, it's time to present your findings in a final paper. Remember that y ...

Assignmentgoals developing problem-solving skills declaring

Assignment Goals: Developing problem-solving skills, declaring variables, multi-way branches, data validation. Problem: Complete Programming Challenge 4.19 in your text book. Do not accept values larger than 10 meters or ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen