trading_chart_flutter 0.1.0

Pure-Dart candlestick trading chart widget for Flutter, with custom RenderObject pipeline, Lightweight Charts-style API, and TradingView-like gestures.

0.1.0

• Line series overlays for indicators on the main pane.
• Built-in moving averages: Simple (SMA) and Exponential (EMA).
• Relative Strength Index (RSI) indicator.
• Sub-panes (ChartPane) for separate indicator panels with auto-fit price scales and reference levels (e.g. RSI 30/70).
• Bar markers (BarMarker) — time-anchored arrows, circles, and squares with optional labels, anchored above/below/in candles.
• Demo GIFs in README.

0.0.1

• Initial release.
• Pure-Dart candlestick chart rendered through a custom RenderObject.
• Volume histogram series with its own price scale.
• Time and price axes with auto-tick generation (nice numbers, time-bucket boundaries).
• Crosshair (mouse hover and touch long-press), last-value price line, OHLC legend.
• Pan, pinch zoom, mouse wheel zoom, trackpad pan/zoom, fling inertia.
• Time-axis drag zoom, price-axis drag manual zoom, double-tap reset zones.
• ChartController with setData, upsert, prependHistory, scrollToLatest, scrollToTime, setVisibleLogicalRange.
• onVisibleRangeChanged callback for history pagination.
• Two example apps: synthetic random walk and live OKX BTC-USDT feed.