[whatwg] Canvas lack of drawString method
sh at kobjects.org
Tue Oct 17 14:50:41 PDT 2006
I would like to second the drawString() request.
It makes sense to have a simple API, but it should be balanced with
application simplicity and readability to some extent. Doing CSS black
magic to overlay text and a Canvas object just seems inadequate for
something like axis labeling.
As noted earlier by somebody else (did not find the mail...), we would
also need a simple Font object, but the minimum requirements seem rather
Font Canvas.createFont(String cssFontProperties);
Canvas.setFont(Font font) // set current font
Canvas.drawString(int x, int y, String text);
Font Canvas.getFont() // current font
int Font.stringWidth(String s);
int Font.getHeight(); // includes leading
Alfonso Baqueiro wrote:
> Hello Charles,
> 2006/10/17, Charles Iliya Krempeaux <supercanadian at gmail.com
> <mailto:supercanadian at gmail.com>>:
> Hello Alfonso,
> On 10/17/06, *Alfonso Baqueiro* < abaqueiro at gmail.com
> <mailto:abaqueiro at gmail.com>> wrote:
> The canvas component is very promising, but the lack of
> drawString method could be a great error for its success, this
> lack is a huge limitation, how could you resolve this problem?
> I believe that some people's reason for not wanting to add it was
> because of Accessibility concerns.
> Although normal text in a webpage... or even a text image (with
> the "alt" attribute filled in properly) could be "read" by a
> person with disabilities, text embedded in the canvas element
> could not.
> Perhaps people need to think about how to add Accessibility to the
> canvas while allowing a "drawString" procedure.
> Well a drawString method in canvas can be used for drawing the axis
> aural reader read it, theres no way (yet) to read an image to a
> blinded people, there are cases where is imposible the accessibility,
> is imposible for a blind to play video games, and accessibility dont
> stop the video games creation. In the case of images or the canvas the
> alt attribute could do the job.
> See ya
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