C++ Shape Drawer

Advanced shape drawing application using C++ and Raylib graphics library. Create circles, rectangles, triangles, and complex patterns with ease.

Project Details

• Title: C++ Shape Drawer
• Author: Molla Samser (Founder of RSK World)
• Designer & Tester: Rima Khatun
• Website: rskworld.in
• Year: 2026

Features

• Multiple Shape Types: Circle, Rectangle, Triangle, Star, and n-sided Polygons.
• Transformation Tools: Rotate and Scale any shape on the canvas.
• Project Persistence: Save (K) and Load (L) your entire drawing project.
• Layer Management: Control the Z-order with Bring to Front and Send to Back.
• Transparency Control: Adjust the Alpha channel of any shape for layering effects.
• Drag & Drop: Select and move shapes with your mouse.
• Color Customization: Multiple colors (Red, Green, Blue, Yellow, Purple).
• Pattern Generation: Auto-generate spirals and grids.
• Export Options: Save your canvas to a PNG file.
• Interactive Controls: Intuitive keyboard and mouse controls.
• Undo Functionality: Quickly remove the last drawn shape.

Controls

• Left Click: Place current shape OR Drag an existing shape to move it.
• Keys 1, 2, 3, 4, 5: Switch between Circle, Rectangle, Triangle, Star, and Polygon.
• Keys Q / E: Rotate the hovered/selected shape.
• Keys + / - OR Mouse Wheel: Scale the hovered/selected shape.
• Key T + Arrows / Wheel: Adjust Transparency (Alpha) of selected shape.
• PgUp / PgDn: Change layer order (Bring to Front / Send to Back).
• Key K / L: Save / Load project state.
• Up / Down (Polygon Mode): Change the number of sides.
• Keys R, G, B, Y, P: Change current color.
• Key F: Toggle Fill mode (Filled vs Outline).
• Key Z: Undo last shape.
• Key C: Clear canvas.
• Key E: Export canvas to cpp_shape_drawer_export.png.

Technologies

• C++17: Modern C++ standards.
• Raylib: Simple and easy-to-use graphics library.
• OOP: Object-Oriented design with polymorphism.
• STL: Use of std::vector and std::unique_ptr.

How to Build

1. Install Raylib.
2. Install CMake.
3. Clone or download this project.
4. Run the following commands:

   mkdir build
   cd build
   cmake ..
   cmake --build .

5. Run the generated executable.

License

This project is licensed under the MIT License - see the LICENSE file for details.

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