Create a new graphics context object.
The 2D canvas rendering context to wrap.
Private _contextPrivate _disposedPrivate _stateDispose of the resources held by the object.
If the object's dispose method is called more than once, all
calls made after the first will be a no-op.
It is undefined behavior to use any functionality of the object after it has been disposed unless otherwise explicitly noted.
A thin caching wrapper around a 2D canvas rendering context.
Notes
This class is mostly a transparent wrapper around a canvas rendering context which improves performance when writing context state.
For best performance, avoid reading state from the
gc. Writes are cached based on the previously written value.Unless otherwise specified, the API and semantics of this class are identical to the builtin 2D canvas rendering context: https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D
The wrapped canvas context should not be manipulated externally until the wrapping
GraphicsContextobject is disposed.