Canvas
Canvas is a widget that can be used to draw graphics using a canvas context. Canvas context is a subset of the HTML5 CanvasRenderingContext2D. Includes Composite
Example:
tabris.create("Canvas", {
layoutData: {left: 0, top: 0, right: 0, bottom: 0}
}).on("resize", function(canvas, bounds) {
var ctx = canvas.getContext("2d", bounds.width, bounds.height);
ctx.moveTo(0, 0);
// ...
}).appendTo(page);
The following CanvasRenderingContext2D methods are supported:
- save
- restore
- beginPath
- closePath
- lineTo
- moveTo
- bezierCurveTo
- quadraticCurveTo
- rect
- arc
- scale
- rotate
- translate
- transform
- setTransform
- clearRect
- fillRect
- strokeRect
- fillText
- strokeText
- fill
- stroke
- measureText
The following CanvasRenderingContext2D properties are supported:
- lineWidth
- lineCap
- lineJoin
- fillStyle
- strokeStyle
- textAlign
- textBaseline
Methods
getContext(contextType, width, height)
Parameters:
- contextType: string, the context identifier. Only
"2d"is currently supported. - width: number, the width of the canvas context to create
- height: number, the height of the canvas context to create
Returns: CanvasContext
Returns the drawing context with the given size.
