Re: [webkit-dev] new APIs for strokes with dash in Canvas
On Fri, 23 Sep 2011, Young Han Lee wrote: I spent some time trying to find it, but couldn't. This bugzilla seems to be the only place we can get information at the moment. https://bugzilla.mozilla.org/show_bug.cgi?id=662038 On Fri, 23 Sep 2011, Dirk Schulze wrote: The WebCore patch of Young is basically using the specified behavior of stroke-dasharray and stroke-dashoffset in the SVG specification [1]. But we wouldn't support units or percentages, just floating point numbers. I've added something along these lines to the HTML specification. It's not quite the same API; see my e-mail to WHATWG (which I'll be sending in the next few days) for more discussion on the design decisions behind it. -- Ian Hickson U+1047E)\._.,--,'``.fL http://ln.hixie.ch/ U+263A/, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.' ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
Re: [webkit-dev] new APIs for strokes with dash in Canvas
I spent some time trying to find it, but couldn't. This bugzilla seems to be the only place we can get information at the moment. https://bugzilla.mozilla.org/show_bug.cgi?id=662038 On Fri, Sep 23, 2011 at 1:44 PM, Ian Hickson i...@hixie.ch wrote: On Thu, 22 Sep 2011, Darin Fisher wrote: Do you know if anyone is working to add this to the spec for Canvas? It seems like it may not take much to get it added, given that FF already has an implementation. Dashed lines are on my list but were not a high priority. If there are implementations then I'm happy to add it -- the only reason I hadn't added it is because the moment I add anything to canvas, everyone implements it, dropping whatever else they were working on, and so if I keep adding canvas features nothing else gets done... :-) Is there any documentation on how this patch and Gecko's implementation work and what they support? -- Ian Hickson U+1047E)\._.,--,'``.fL http://ln.hixie.ch/ U+263A/, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.' ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
[webkit-dev] new APIs for strokes with dash in Canvas
Hi all, I have a patch to add webkitLineDash and webkitLineDashOffset APIs on CanvasRenderingContext2D on https://bugs.webkit.org/show_bug.cgi?id=63933 The purpose of these APIs is to support for strokes with dash in Canvas. Although the API is not specified in the HTML Canvas specification yet, I believe it would be great to support the API. As Dirk said in the above bug, Mozilla already implemented the APIs named mozDash and mozDashOffset[1], and there seems to be many needs for the API. Some people even implemented their own javascript functions to draw strokes with dash in Canvas[2,3]. As GraphicsContext already have an interface for strokes with dash, setLineDash, all we have to do is exposing it to the JS level. So the syntax and meaning of the new APIs is the same with the arguments of the setLineDash. webkitLineDash is an array of float, and webkitLineDashOffset is a float. I uploaded a patch for JSC first. After the patch is landed, I will make a follow-up patch for V8. Any thought? [1] https://bugzilla.mozilla.org/show_bug.cgi?id=662038 [2] http://davidowens.wordpress.com/2010/09/07/html-5-canvas-and-dashed-lines/ [3] http://stackoverflow.com/questions/7352769/dashed-curves-on-html5-canvas-bezier ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
Re: [webkit-dev] new APIs for strokes with dash in Canvas
On Thu, Sep 22, 2011 at 7:31 PM, Young Han Lee joybro...@gmail.com wrote: Hi all, I have a patch to add webkitLineDash and webkitLineDashOffset APIs on CanvasRenderingContext2D on https://bugs.webkit.org/show_bug.cgi?id=63933 The purpose of these APIs is to support for strokes with dash in Canvas. Although the API is not specified in the HTML Canvas specification yet, I believe it would be great to support the API. As Dirk said in the above bug, Mozilla already implemented the APIs named mozDash and mozDashOffset[1], and there seems to be many needs for the API. Some people even implemented their own javascript functions to draw strokes with dash in Canvas[2,3]. As GraphicsContext already have an interface for strokes with dash, setLineDash, all we have to do is exposing it to the JS level. So the syntax and meaning of the new APIs is the same with the arguments of the setLineDash. webkitLineDash is an array of float, and webkitLineDashOffset is a float. I uploaded a patch for JSC first. After the patch is landed, I will make a follow-up patch for V8. Any thought? Has this proposal been raised in the WHATWG, which specifies the canvas 2d interface? It sounds like in this email you have done most of the work necessary for a good spec proposal (see http://wiki.whatwg.org/wiki/FAQ#Is_there_a_process_for_adding_new_features_to_a_specification.3F ). - James [1] https://bugzilla.mozilla.org/show_bug.cgi?id=662038 [2] http://davidowens.wordpress.com/2010/09/07/html-5-canvas-and-dashed-lines/ [3] http://stackoverflow.com/questions/7352769/dashed-curves-on-html5-canvas-bezier ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
Re: [webkit-dev] new APIs for strokes with dash in Canvas
Do you know if anyone is working to add this to the spec for Canvas? It seems like it may not take much to get it added, given that FF already has an implementation. -Darin On Thu, Sep 22, 2011 at 7:31 PM, Young Han Lee joybro...@gmail.com wrote: Hi all, I have a patch to add webkitLineDash and webkitLineDashOffset APIs on CanvasRenderingContext2D on https://bugs.webkit.org/show_bug.cgi?id=63933 The purpose of these APIs is to support for strokes with dash in Canvas. Although the API is not specified in the HTML Canvas specification yet, I believe it would be great to support the API. As Dirk said in the above bug, Mozilla already implemented the APIs named mozDash and mozDashOffset[1], and there seems to be many needs for the API. Some people even implemented their own javascript functions to draw strokes with dash in Canvas[2,3]. As GraphicsContext already have an interface for strokes with dash, setLineDash, all we have to do is exposing it to the JS level. So the syntax and meaning of the new APIs is the same with the arguments of the setLineDash. webkitLineDash is an array of float, and webkitLineDashOffset is a float. I uploaded a patch for JSC first. After the patch is landed, I will make a follow-up patch for V8. Any thought? [1] https://bugzilla.mozilla.org/show_bug.cgi?id=662038 [2] http://davidowens.wordpress.com/2010/09/07/html-5-canvas-and-dashed-lines/ [3] http://stackoverflow.com/questions/7352769/dashed-curves-on-html5-canvas-bezier ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
Re: [webkit-dev] new APIs for strokes with dash in Canvas
On Thu, 22 Sep 2011, Darin Fisher wrote: Do you know if anyone is working to add this to the spec for Canvas? It seems like it may not take much to get it added, given that FF already has an implementation. Dashed lines are on my list but were not a high priority. If there are implementations then I'm happy to add it -- the only reason I hadn't added it is because the moment I add anything to canvas, everyone implements it, dropping whatever else they were working on, and so if I keep adding canvas features nothing else gets done... :-) Is there any documentation on how this patch and Gecko's implementation work and what they support? -- Ian Hickson U+1047E)\._.,--,'``.fL http://ln.hixie.ch/ U+263A/, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.' ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
Re: [webkit-dev] new APIs for strokes with dash in Canvas
On Fri, Sep 23, 2011 at 1:44 PM, Ian Hickson i...@hixie.ch wrote: Is there any documentation on how this patch and Gecko's implementation work and what they support? I spent some time trying to find it, but couldn't. This bugzilla seems to be the only place we can get information at the moment. https://bugzilla.mozilla.org/show_bug.cgi?id=662038 ___ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
