CanvasRenderingContext2D: save() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The
CanvasRenderingContext2D.save()
method of the Canvas 2D API saves the entire state of the canvas by pushing the current
state onto a stack.
Syntax
js
save()
Parameters
None.
Return value
None (undefined).
Description
The drawing state that gets saved onto a stack consists of:
- The current transformation matrix.
- The current clipping region.
- The current dash list.
- The current values of the following attributes:
directionfillStylefilterfontfontKerningfontStretchfontVariantCapsglobalAlphaglobalCompositeOperationimageSmoothingEnabledimageSmoothingQualityletterSpacinglineCaplineDashOffsetlineJoinlineWidthmiterLimitshadowBlurshadowColorshadowOffsetXshadowOffsetYstrokeStyletextAligntextBaselinetextRenderingwordSpacing
Examples
Saving the drawing state
This example uses the save() method to save the current state and
restore() to restore it later, so that you are able to draw a rect with the
current state later.
HTML
html
<canvas id="canvas"></canvas>
JavaScript
js
const canvas = document.getElementById("canvas");
const ctx = canvas.getContext("2d");
// Save the current state
ctx.save();
ctx.fillStyle = "green";
ctx.fillRect(10, 10, 100, 100);
// Restore to the state saved by the most recent call to save()
ctx.restore();
ctx.fillRect(150, 40, 100, 100);
Result
[フレーム]
Specifications
| Specification |
|---|
| HTML # dom-context-2d-save-dev |
Browser compatibility
Enable JavaScript to view this browser compatibility table.
See also
- The interface defining this method:
CanvasRenderingContext2D CanvasRenderingContext2D.restore()