gradient background

[xwang]

Hi

Is there a function to do gradient display?

thanks!

[Isomorphic]

You use image files to achieve this - see the Skinning Guide for instructions on how you can incorporate media into various components.

Note that CSS-based gradient effects exist on some browsers, but it is not yet broadly supported enough. When it is, we'll support it and have docs on which browsers it works with.

[csillag]

Hi,

Could you please provide an update about this?
By now, most browser support gradient backgrounds in some form or other.

(Works: FF >= 3.6, Chrome, Safari, IE >= 7 (with some DirectX magic))

It would be nice if there was a wrapper for the various browser quirks and work-arounds required to do this.

(The image-file based approach does not work when the parameters change on the fly.)

Thank you:

Csillag

[Isomorphic]

We will be providing skins that make use of these features via CSS where available. We do not yet plan a feature to programmaticaly generate CSS for a gradient (although this does exist for vector shapes in the Drawing Module in 3.x).

[kavyabellary]

 I tried use CSS..
It is working in firefox. but not in IE.
See the Example
       .roundStyle {
	           border-radius: 6px;
	}

[solstice]

To apply a gradient background to something like an HLayout, simply specify a CSS class and do not specify a backgroundImage property. Then, in your CSS, add something similar to the following properties to your CSS class, which creates a multi-step black-to-white gradient:

background: #4c4c4c; /* Old browsers */
background: -moz-linear-gradient(top,  #4c4c4c 0%, #595959 12%, #666666 25%, #474747 39%, #2c2c2c 50%, #000000 51%, #111111 60%, #2b2b2b 76%, #1c1c1c 91%, #131313 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#4c4c4c), color-stop(12%,#595959), color-stop(25%,#666666), color-stop(39%,#474747), color-stop(50%,#2c2c2c), color-stop(51%,#000000), color-stop(60%,#111111), color-stop(76%,#2b2b2b), color-stop(91%,#1c1c1c), color-stop(100%,#131313)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #4c4c4c 0%,#595959 12%,#666666 25%,#474747 39%,#2c2c2c 50%,#000000 51%,#111111 60%,#2b2b2b 76%,#1c1c1c 91%,#131313 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #4c4c4c 0%,#595959 12%,#666666 25%,#474747 39%,#2c2c2c 50%,#000000 51%,#111111 60%,#2b2b2b 76%,#1c1c1c 91%,#131313 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #4c4c4c 0%,#595959 12%,#666666 25%,#474747 39%,#2c2c2c 50%,#000000 51%,#111111 60%,#2b2b2b 76%,#1c1c1c 91%,#131313 100%); /* IE10+ */
background: linear-gradient(top,  #4c4c4c 0%,#595959 12%,#666666 25%,#474747 39%,#2c2c2c 50%,#000000 51%,#111111 60%,#2b2b2b 76%,#1c1c1c 91%,#131313 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#4c4c4c', endColorstr='#131313',GradientType=0 ); /* IE6-9 */

Note that IE only supports 2-step gradients as of version 9. I haven't tested this on v10. The other browsers support multi-step gradients and you can see each of those steps listed above in color/distance pairs.

HTH,
Sol