This is a desktop application for kids that allows them to create drawings using various shapes and colors. The application is implemented in C++ and follows an object-oriented programming (OOP) approach, resulting in a well-structured codebase.
The Kids Paint Desktop App offers the following main features:
- Rectangle: Allows the user to draw rectangles on the canvas.
- Square: Enables drawing squares of equal length sides.
- Triangle: Provides the ability to draw triangles.
- Hexagon: Allows drawing hexagons with six equal sides.
- Circle: Enables the creation of circles on the canvas.
- Select: Allows the user to select a shape on the canvas for further modification.
- Move: Enables moving the selected shape to a new position on the canvas.
- Change Fill Color: Allows changing the fill color of the selected shape.
- Change Draw Color: Allows changing the draw color of the selected shape.
- Delete: Removes the selected shape from the canvas.
- Save: Saves the current drawing to a file.
- Load: Loads a previously saved drawing from a file.
- Undo and Redo: Provides the ability to undo and redo previous actions performed on the canvas.
- Sound Effects: Enables or disables sound effects within the application.
- Recording: Allows the user to record their actions on the canvas and play them back later.
The codebase of the Kids Paint Desktop App is well-structured and follows an object-oriented design. The main components of the application include:
The ApplicationManager class is responsible for managing the overall flow of the application. It handles the execution of various actions based on user input and maintains a list of shapes present on the canvas.
Actions are represented by different classes, each corresponding to a specific operation that can be performed on the canvas. Each action class inherits from a base Action class and implements the Execute method to perform its specific functionality.
Different shape classes, such as Rectangle, Square, Triangle, Hexagon, and Circle, are implemented to represent the various shapes that can be drawn on the canvas. Each shape class provides methods for drawing, selecting, moving, and modifying the shape's properties.
The Save and Load actions are responsible for saving and loading the drawing to and from a file, respectively. The SaveAll method in the ApplicationManager class is used to save all the shapes' data to the file.
The UndoAction and RedoAction classes provide the ability to undo and redo previous actions performed on the canvas. These actions utilize a stack-based approach to store the executed actions, allowing for easy reversal and restoration of actions.
The Sound action allows the user to enable or disable sound effects within the application. It interacts with the underlying audio system to play sound effects when certain actions are performed.
The StartRec, StopRec, and PlayRec actions are responsible for recording the user's actions on the canvas, stopping the recording, and playing back the recorded actions, respectively. These actions utilize a recording mechanism to store the sequence of actions performed by the user.