I'm printing text to a canvas in a pretty straight forward way:
var ctx = canvas.getContext('2d');
ctx.font = "10pt Courier";
ctx.fillText("Hello World", 100, 100);
But how can I change the text to bold, italic or both? Any suggestions to fix that simple example?
You can use any of these:
ctx.font = "italic 10pt Courier";
ctx.font = "bold 10pt Courier";
ctx.font = "italic bold 10pt Courier";
For further information, here are a couple of resources:
Just an additional heads up for anyone who stumbles across this: be sure to follow the order shown in the accepted answer.
I ran into some cross-browser issues when I had the wrong order. Having "10px Verdana bold" works in Chrome, but not in IE or Firefox. Switching it to "bold 10px Verdana" as indicated fixed those problems. Double-check the order if you run into similar problems.
Underline is not possible through any of the canvas methods or properties. But I did some work around to get it done. You can check it out @ http://scriptstock.wordpress.com/2012/06/12/html5-canvas-text-underline-workaround
You can find the implementation here http://jsfiddle.net/durgesh0000/KabZG/
So there's no way to just set font-weight
(or font-size
or font-family
...) in one JS command? It all has to be in one complete font string?
来源:https://stackoverflow.com/questions/5158222/how-do-i-style-html5-canvas-text-to-be-bold-and-or-italic