smartcalc 0.1.1

A minimal calculator with keyboard control dark & lite themes.

🧮 SmartCalc

A minimalistic, keyboard-driven one-line calculator powered by Pygame.

It features a dark/light Tokyo Night-inspired theme, supports:

• variable assignments (result = 3+5),
• post-assignments (12**3 > c) c now equals 1728,
• accumulation (227 >> c), if both line calculated c = 1995,
• input history navigation,
• and beautifully formatted numeric output.

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✨ More Features

• ✅ One-line interactive input interface
• ✅ Variable assignment (a = 5) and accumulation (2 + 3 >> total)
• ✅ Keyboard-only navigation — no mouse required
• ✅ Tokyo Night color scheme (dark/light switchable)
• ✅ Auto-scaling font size to fit long results
• ✅ Right-aligned results with underscore-separated formatting (10_000)
• ✅ Input history navigation with ↑ and ↓ arrows

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🎮 Controls

Key	Action
Enter	Evaluate expression
Backspace	Delete one character
T	Toggle dark/light theme
↑ / ↓	Recall previous/next inputs

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📦 Requirements

• Python 3.10+
• pygame (tested with 2.5+)

Install Pygame via pip if you haven't already:

uv add pygame
# or
pip install pygame

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🔤 Supported Syntax

• Standard math: 1 + 2 * 3 - 4 / 2

• Variables:

  a = 5
  b = 10
  a + b
  

• Post-assignment (accumulator):

  10 >> total
  5 >> total   # total now becomes 15
  

• Most Python math operators: +, -, *, /, **, %

• Last result is stored in _

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🔧 Fonts

The app uses FiraCode Nerd Font for crisp symbols and readability.

• It will be used by default from fonts/FiraCodeNerdFont-Regular.ttf.
• If not, the system’s default font will be used as fallback.

To install FiraCode Nerd Font manually:

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🚀 Running the App

calc  # if installed via uv tool install smartcalc
# or
uv run core.py  # if downloaded from git
# or
python core.py

Make sure the FiraCodeNerdFont-Regular.ttf in fonts/ directory.

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📂 Project Structure

smartcalc/
├── __init__.py
├── core.py
└── fonts/
    └── FiraCodeNerdFont-Regular.ttf

pyproject.toml
README.md

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🛠️ Future Ideas

• Cursor movement and editing (←, →)
• Scrollable history buffer
• Command-line launch options (e.g. --theme=light)
• User-defined functions
• Save/load variable memory

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📝 License

This project is licensed under the GNU General Public License.

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Made with 💻 and ☕ by Sergey Samoylov