CanvasRenderingContext2D.restore

The CanvasRenderingContext2D.restore() method of the Canvas 2D API restores the most recently saved canvas state by popping the top entry in the drawing state stack. If there is no saved state, this method does nothing.

Syntax

void ctx.restore();

Fore more information about the drawing state, see CanvasRenderingContext2D.save().

Examples

Using the restore method

This is just a simple code snippet which uses the save() method to save the default state and restore() to restore it later, so that you are able to draw a rect with the default state later.

HTML

<canvas id="canvas"></canvas>

JavaScript

var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');

ctx.save(); // save the default state

ctx.fillStyle = 'green';
ctx.fillRect(10, 10, 100, 100);

ctx.restore(); // restore to the default state
ctx.fillRect(150, 75, 100, 100);

Edit the code below and see your changes update live in the canvas:

Playable code

<div id="canvasTarget">
</div>
<div class="playable-buttons">
  <input id="run" type="button" value="Run" />
  <input id="edit" type="button" value="Edit" />
  <input id="reset" type="button" value="Reset" />
</div>
<textarea id="code" class="playable-code">
ctx.save();
ctx.fillStyle = "green";
ctx.fillRect(10, 10, 100, 100);
ctx.restore();
ctx.fillRect(150, 75, 100, 100);</textarea>

var canvasTarget = document.getElementById("canvasTarget");
var textarea = document.getElementById("code");
var run = document.getElementById("run");
var reset = document.getElementById("reset");
var edit = document.getElementById("edit");
var code = textarea.value;
var canvas;
var ctx;

function drawCanvas() {
  if (canvas) {
  	canvasTarget.removeChild(canvas);
  }
  canvas = document.createElement('canvas');
  canvasTarget.appendChild(canvas);
  canvas.width = 400;
  canvas.height = 200;
  ctx = canvas.getContext("2d");
  eval(textarea.value);
}

reset.addEventListener("click", function() {
  textarea.value = code;
  drawCanvas();
});

edit.addEventListener("click", function() {
  textarea.focus();
})

run.addEventListener("click", drawCanvas);
window.addEventListener("load", drawCanvas);

Specifications

Browser compatibility

See also

• The interface defining it, CanvasRenderingContext2D.
• CanvasRenderingContext2D.save()