paint

A simple drawing application, made using Flutter.

Repository, on GitHub.

Download Windows Releases

Deployed App

About

Features

Circle rasterization mode:

• Bresenham.

Line rasterization modes:

• Bresenham;
• DDA.

Line clipping modes:

• Cohen Sutherland;
• Liang Barsky.

Vector node operations:

• Flipping;
• Rotation (Select vector, Scroll Wheel);
• Scaling (Select vector, Shift + LMB drag);
• Translation (Select vector, LMB drag).

Other features:

• Clear canvas (Ctrl + Delete);
• Select all nodes for vector selection tool (Ctrl + A);
• Zooming (Ctrl + +, Ctrl + -, Ctrl + 0);

Toolbar

Raster tools:

• Circle tool (R);
• Free hand brush (B);
• Line tool (L).

Vector tools:

• Clipping tool (Ctrl + W);
• Line tool (Ctrl + L);
• Vector selection (Ctrl + Q);
• Polygon tool (Ctrl + P).

Folder structure

• lib/ : Dart source code.
• lib/controllers/ : Efficient data manipulation and propagation.
• lib/core/ : Core functionality - drawers, clippers.
• lib/model/ : Internal data structure definitions.
• lib/pages/ : App pages.
• lib/painters/ : Data views that reflect controller data and updates and overlays.
• lib/widgets/ : Reusable and modular ui components and core ui elements.

Installation

flutter pub get

Running

Web

flutter run web

Windows

flutter run windows

Notes

• Includes a Caprover definition file to enable simple web hosting, using Nginx and Docker. Currently deployed here.