Re: Dojo-interest Digest, Vol 46, Issue 24

[takpoli]

 
I am new with gfx.  To experience line drag-and-drop with gfx, I did the following:
 
1. change 100 circles example to make 10 circles only.
2. draw 9 lines between them, from center to center.
3. change x1y1 or x2y2 of the lines that attached to the circle by
   using xxx.setShape("x1: xx, y1: yy")
 
It is not working.  The code is attached.  Please help.
Thanks,
 
Tak
 
 

On Wed, Oct 15, 2008 at 8:00 AM, <dojo-interest-request@...> wrote:

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Today's Topics:

  1. Re: gfx (Eugene Lazutkin)
  2. Re: gfx (Eugene Lazutkin)
  3. Re: dojox.layout.ContentPane not loading CSS linked       in
     included page (Deno Vichas)
  4. Re: dojox.layout.ContentPane not loading CSS linked in
     included page (Alessandro Vernet)
  5. [Q] declaring variables in module for export (V S P)
  6. Re: [Q] declaring variables in module for export (Peter Svensson)
  7. Re: [Q] declaring variables in module for export (Peter E Higgins)
  8. Drag and Drop - Problem in Dragging the Item ( (?`?.k ! k !.???))
  9. any good resources? (Scott Ballantyne)
 10. Re: any good resources? (Peter Svensson)


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Message: 1
Date: Tue, 14 Oct 2008 11:35:47 -0500
From: Eugene Lazutkin <eugene.lazutkin@...>
Subject: Re: [Dojo-interest] gfx
To: dojo-interest@...
Message-ID: <gd2hp3$54i$1@...>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

gfx is meant to shield you from details of an actual implementation. You
definitely can use it for SVG only, but any SVG trick would not work
with other renderers. For example, there are renderers that are not
DOM-based, or use a separate DOM (outside of HTML). It is better to
follow the documentation: http://docs.dojocampus.org/dojox/gfx. It
explains what's universally available and what platform-specific
differences can be encountered.

Thanks,

Eugene

Tak-po Li wrote:
>
> Eugene,
>
> I can live with the problem with clipped border by assigning width 2.
> The border of rect itself is OK.
>
> I can use createGroup and createText to generate the following svg dom
> structure in FF:
>
> <g>
>   <rect>....</rect>
>   <text>...</text>
>   <g></g>
>   <g></g>
> </g>
>
> I attach the top group to your Movable and the whole group moves with
> the cursor movement.
>
>  From dom inspector, I notice the group attribute is empty when it is
> generated.  I need some attributes such as 'id', 'attachedto'....for the
> group.  Where is best module to add them to the group?  I also notice
> attribute 'transform' is added when the group is moved by 'Movable'.  As
> you know, I plan to handle event myself, do I still need attribute
> 'transform'?  If I do needed it, where is a good example that get added?
>
> Thanks again,
>
> Tak
>
>

>
>
>   _renderShape: function(/* Object */ ctx){
>    // nothing
>   },
>
>
>
>
> ------------------------------------------------------------------------

>
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------------------------------

Message: 2
Date: Tue, 14 Oct 2008 11:39:00 -0500
From: Eugene Lazutkin <eugene.lazutkin@...>
Subject: Re: [Dojo-interest] gfx
To: dojo-interest@...
Message-ID: <gd2hv5$5ri$1@...>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Yes, this picture is mostly correct. But instead of dojo.connect() gfx
provides it's one method on shape objects: shape.connect() that is
modeled after dojo.connect(). It is documented and used in tests and
demos. The reason is that dojo.connect() works with HTML DOM, while some
renderers don't use HTML DOM at all.

But if you want to attach events to HTML DOM objects (e.g., document,
body, or surface.rawNode) dojo.connect() is the right way to go.

Thanks,

Eugene

Tak-po Li wrote:
>
> Eugene,
>
> I misunderstood what you wrote.
>
> It sounds I should use dojo.connect function for creating the linkage
> between Shapes and Functions.  I should save them in my own storage and
> add to the Json in serializer when user wants to save his work.  I
> should reconnect Shapes and Functions in deserializer from the saved
> Json when user resume his work, right?
>
> Thanks,
>
> Tak
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> FAQ: http://dojotoolkit.org/support/faq
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