Lines Matching refs:canvas
1 var canvas;
20 ctx.clearRect(0, 0, canvas.width, canvas.height);
90 if ('canvas' in first && 'clear' == first.canvas) {
154 canvas = document.getElementById("canvas");
155 ctx = canvas ? canvas.getContext("2d") : null;
158 var unscaledWidth = canvas.width;
159 var unscaledHeight = canvas.height;
160 canvas.width = unscaledWidth * resScale;
161 canvas.height = unscaledHeight * resScale;
162 canvas.style.width = unscaledWidth + 'px';
163 canvas.style.height = unscaledHeight + 'px';
