yaronn/blessed-contrib
Blessed Contrib
blessed-contrib is a terminal user interface framework and a Node.js console widget library designed for building data-driven command line interfaces. It serves as an ASCII data visualization toolkit and a dashboard framework for organizing grid-based layouts and interactive elements within a console.
The project provides a collection of reusable terminal components, including a command line image renderer and tools for text-based graphic rendering. It specifically enables the creation of terminal dashboards through a system for positioning multiple widgets across rows and columns and a mechanism for rotating between different terminal views.
Its visualization capabilities cover a wide range of data representations, including bar, donut, line, sparkline, and gauge charts, as well as world maps with coordinate-mapped markers. The library also includes interactive data tables, hierarchical tree views, LCD segment displays, and rolling log displays.
Additional support is provided for rendering markdown text and converting image pixel data into text characters for display in a terminal emulator.
Features
- Data Visualization Charts - Provides a comprehensive library for rendering data visualizations, charts, and gauges using text-based art.
- Terminal-Based Dashboards - Provides a framework for building interactive, data-driven dashboards rendered in the terminal using low-level escape sequences.
- Node.js CLI Libraries - Provides a library of reusable terminal components like data tables, tree views, and LCD displays for Node.js applications.
- Bar Charts - Includes visual widgets for representing data as horizontal or vertical bar charts in the terminal.
- Interactive Data Grids - Provides interactive data grids with headers and keyboard-driven row selection for terminal data exploration.
- Layout Design - Provides a grid-based system for positioning multiple widgets across rows and columns to organize complex terminal interfaces.
- Grid Layouts - Offers a system for positioning terminal widgets using a coordinate-based grid of rows and columns.
- ANSI Escape Sequence Renderers - Provides an engine for generating raw ANSI escape sequences to render charts and graphics within a terminal.
- Dashboard Widget Components - Provides a set of reusable building blocks for rendering data-driven widgets in a terminal dashboard.
- Donut Charts - Ships circular statistical graphics to represent proportional data distribution within terminal dashboards.
- Line Charts - Provides widgets to represent data trends as lines on a coordinate system within the terminal.
- Gauge Widgets - Visualizes single values or stacked percentages using circular gauge indicators.
- Sparkline Charts - Implements compact, minimalist line charts to visualize data trends in small terminal spaces.
- Terminal Data Visualizations - Offers a toolkit of text-based charts, gauges, and maps for rendering numerical data and trends inside a terminal.
- Terminal User Interfaces - Serves as a comprehensive framework for building, styling, and managing interactive text-based user interfaces.
- Node.js Terminal Frameworks - Ships a Node.js framework for creating interactive, responsive terminal user interfaces with data-driven widgets.
- Keyboard-Driven Grid Navigation - Tracks active row and column states to allow keyboard-based selection and focus within data grids.
- Terminal Markdown Renderers - Converts markdown text into formatted terminal output with styling to improve readability.
- Pixel-to-Character Mapping - Converts image pixel data into characters to enable graphical image display within a text-only terminal.
- Real-Time Charting Engines - Implements rendering engines for displaying high-frequency data streams via bar, donut, line, and sparkline charts in the terminal.
- Terminal Graphics Rendering - Implements the display of images, world maps, and formatted markdown within terminal emulators.
- Geographic-to-Terminal Mapping - Implements the translation of longitude and latitude into specific terminal character coordinates for world maps.
- Terminal World Maps - Displays a geographic world map with custom markers based on longitude and latitude coordinates.
- Real-Time Monitoring Dashboards - Enables the creation of terminal dashboards to track system health and performance metrics in real-time.
- Rolling Log Windows - Creates a scrollable window that appends new text entries in real time to monitor system activity.
- Automatic View Rotations - Automatically switches between different terminal screens by cycling through a queue of views at set intervals.
- Dashboarding Frameworks - Provides tools for composing and managing interactive terminal widgets and data-driven monitoring dashboards.
- Terminal Image Renderers - Displays image files as visual elements within a command-line interface by converting pixels to text.
- Grid Layouts - Includes a layout engine for arranging terminal widgets in rows and columns with support for spanning.
- LCD Segment Displays - Renders numeric or alphanumeric characters in a segmented style for high-visibility readouts.
- Tree Views - Provides hierarchical components for displaying nested data structures in an expandable folder-like view.
- Infrastructure and Automation - Dashboard building toolkit for terminals.
- Console Interfaces - Listed in the “Console Interfaces” section of the Awesome Go awesome list.
