React Canvas

react-canvas is a library for drawing user interface elements to a hardware-accelerated canvas instead of the standard document tree. It provides a system for rendering components to a canvas to improve rendering speed and frame rates.

The project includes a layer manager to organize visual elements and cache expensive drawing operations. It features a text engine capable of rendering multi-line text with precise character metric measurements and truncation, as well as a virtualized list system that processes only visible items to maintain smooth scrolling.

Interaction is handled through a canvas event handler that maps native coordinates back to virtual components, simulating standard event behavior to trigger application responses.

Features

Canvas Rendering Engines - Provides a rendering engine that translates component trees into pixel-based images on a hardware-accelerated canvas.
Canvas Rendering - A library for drawing high-performance user interface elements directly to a hardware-accelerated canvas.
Event Simulation Systems - Captures user interactions on canvas elements using a standard event model to trigger application responses.
Canvas Rendering Pipelines - Renders high-performance UI components directly to a hardware-accelerated canvas pipeline.
Canvas Interaction Mapping - Implements a system to map native canvas coordinates back to virtual components to simulate standard event behavior.
Canvas Coordinate Handlers - Provides an interaction model that captures user events on canvas-rendered components.
Coordinate-to-Component Mapping - Maps native canvas interaction coordinates back to individual virtual components to simulate DOM event behavior.
Drawing Layers - Uses a layer manager to organize visual elements and cache expensive drawing operations to reduce redraws.
Canvas Text Layout Engines - Uses a specialized text layout engine to handle multi-line rendering and precise character measurements on canvas.
Layered Canvas Composition - Organizes visual elements using containers that handle stacking order and caching of drawing operations.
Segmented Canvas Rendering - Implements a virtualized rendering system to process only visible items for smooth scrolling on a canvas.
Text Dimension Calculators - Calculates precise character dimensions and metrics to handle manual text wrapping and truncation on canvas.
Virtualized List Rendering - Employs a high-performance rendering technique that displays only the visible subset of items in a column.
Virtualized Lists - Processes only items currently visible in the viewport to maintain smooth scrolling and low memory usage.
Canvas Libraries - High-performance rendering for React components.

Star history

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Flipboardreact-canvas

Name: flipboard/react-canvas
Author: Flipboard

View on GitHub

13,203 stars914 forksJavaScriptBSD-3-Clause19 views

React Canvas

Interaction is handled through a canvas event handler that maps native coordinates back to virtual components, simulating standard event behavior to trigger application responses.

Features

Canvas Rendering Engines - Provides a rendering engine that translates component trees into pixel-based images on a hardware-accelerated canvas.
Canvas Rendering - A library for drawing high-performance user interface elements directly to a hardware-accelerated canvas.
Event Simulation Systems - Captures user interactions on canvas elements using a standard event model to trigger application responses.
Canvas Rendering Pipelines - Renders high-performance UI components directly to a hardware-accelerated canvas pipeline.
Canvas Interaction Mapping - Implements a system to map native canvas coordinates back to virtual components to simulate standard event behavior.
Canvas Coordinate Handlers - Provides an interaction model that captures user events on canvas-rendered components.
Coordinate-to-Component Mapping - Maps native canvas interaction coordinates back to individual virtual components to simulate DOM event behavior.
Drawing Layers - Uses a layer manager to organize visual elements and cache expensive drawing operations to reduce redraws.
Canvas Text Layout Engines - Uses a specialized text layout engine to handle multi-line rendering and precise character measurements on canvas.
Layered Canvas Composition - Organizes visual elements using containers that handle stacking order and caching of drawing operations.
Segmented Canvas Rendering - Implements a virtualized rendering system to process only visible items for smooth scrolling on a canvas.
Text Dimension Calculators - Calculates precise character dimensions and metrics to handle manual text wrapping and truncation on canvas.
Virtualized List Rendering - Employs a high-performance rendering technique that displays only the visible subset of items in a column.
Virtualized Lists - Processes only items currently visible in the viewport to maintain smooth scrolling and low memory usage.
Canvas Libraries - High-performance rendering for React components.

Projects sharing features with React Canvas

These projects share indexed features with React Canvas. Shared tags can include platform or build tooling; verify the primary use case before treating a result as a replacement.

chenglou/pretext
chenglou/pretext
48,480View on GitHub
Pretext is a canvas-based text layout engine designed to calculate precise text dimensions and line breaks for custom rendering. It serves as a rich text measurement tool and a cross-browser typography normalizer, enabling the determination of pixel-perfect widths and heights for mixed inline content without relying on browser CSS. The project distinguishes itself through its ability to handle complex typography and dynamic layouts. It implements language-specific segmentation rules for CJK and Hangul scripts and corrects emoji width variances between DOM and canvas rendering. Additionally, i
TypeScript
View on GitHub48,480
konvajs/konva
konvajs/konva
14,135View on GitHub
Konva is an object-oriented HTML5 canvas framework designed for building interactive 2D graphical applications. It provides a hierarchical scene graph that organizes shapes, images, and text into manageable nodes, groups, and layers. By mapping application state to canvas elements, the library enables developers to create complex visual interfaces using declarative patterns that synchronize with modern component-based frameworks. The library distinguishes itself through a robust event system that supports hit detection, bubbling, and direct manipulation of graphical objects, such as dragging,
TypeScriptanimationcanvasdrag-and-drop
View on GitHub14,135
cmiscm/leonsans
cmiscm/leonsans
10,179View on GitHub
This project is a programmable font system and canvas typography engine that renders a geometric sans-serif typeface using raw coordinate data. It functions as a coordinate-based text animator, allowing for the real-time modification of glyph shapes and font weights. The system distinguishes itself through the ability to extract and manipulate the point coordinates of characters to create morphing effects, wave animations, and shape transitions. It enables dynamic weight interpolation and point-to-line visualizations, moving beyond static font rendering to produce procedural typography. The
JavaScript
View on GitHub10,179

Frequently asked questions

What does flipboard/react-canvas do?

What are the main features of flipboard/react-canvas?

The main features of flipboard/react-canvas are: Canvas Rendering Engines, Canvas Rendering, Event Simulation Systems, Canvas Rendering Pipelines, Canvas Interaction Mapping, Canvas Coordinate Handlers, Coordinate-to-Component Mapping, Drawing Layers.

Which projects share features with flipboard/react-canvas?

Projects with overlapping indexed features include: chenglou/pretext — Pretext is a canvas-based text layout engine designed to calculate precise text dimensions and line breaks for custom… konvajs/konva — Konva is an object-oriented HTML5 canvas framework designed for building interactive 2D graphical applications. It… konvajs/react-konva — react-konva is a declarative React canvas graphics library and 2D vector graphics framework. It serves as a rendering… cmiscm/leonsans — This project is a programmable font system and canvas typography engine that renders a geometric sans-serif typeface… leaferjs/leafer-ui — Leafer UI is a high-performance HTML5 canvas rendering engine and 2D vector graphics library. It utilizes a… buuing/lucky-canvas — Lucky Canvas is a canvas-based lottery component library that enables developers to build interactive prize wheels,…