Nice work, Andrew. It sure illustrates the flex-ibility of the dataGrid.
I am not entirely convinced that the dataGrid is the best way to go
though... I mean for a pro-component. I think a combination of datagrid
(or tree) and canvas could be easier down the road. By this I mean, once
you get into drawing dependency lines - as an example - (which can go
across multiple rows either up or down, backwards, and sometimes around
objects) a grid and the itemrenderer could face a hard time. I believe
there is a colleague of yours at cynergy, by the name of Karl Johnson,
who has done some work on this subject too - I am sure he can offer some
valuable input as well. Have seen some earlier posts coming from him...
Hey, don't get me wrong, thanks for putting up these samples - really
appreciate this kind of "pro-bono" work; this is very helpful to
study,
especially for newbies like myself.
--- In [EMAIL PROTECTED]ups.com,
"Andrew Trice" <andrew.trice@...>
wrote:
>
> I threw together an example over the weekend using a datagrid to show
a
> very basic Gantt Chart. It really wasn't that difficult. It would take
> more time to get it looking polished, but definitely less effort than
> creating chart, series, and renderers as a custom component. You can
> check it out here:
>
>
>
>
http://www.cynergysystems.com/blogs/page/andrewtrice?entry=gantt_charts_
> in_flex_datagrids
>
>
>
> _____________________________________
>
> Andrew Trice
>
> Cynergy Systems, Inc.
>
> http://www.cynergysystems.com
>
>
>
> Blog: http://www.cynergysystems.com/blogs/page/andrewtrice
>
> Email: andrew.trice@...
>
> Office: 866-CYNERGY
>
>
>
> ________________________________
>
> From: [EMAIL PROTECTED]ups.com
[mailto:[EMAIL PROTECTED]ups.com]
On
> Behalf Of Andrew Trice
> Sent: Friday, October 27, 2006 5:18 PM
> To: [EMAIL PROTECTED]ups.com
> Subject: RE: [flexcoders] gant chart
>
>
>
> If you want a full gantt chart with dependencies and links to other
> tasks, yes this is a huge undertaking. If you just want a visual
> display of a duration over time it is not so difficult.
>
>
>
> The datagrid approach can easily represent something like:
>
>
>
> [[]]--------------------
>
> --[[]]------------------
>
> ----[[[[]]]]------------
>
> -----------[[[[[]]]]]---
>
> -------------------[[[]]
>
>
>
> (hopefully flexcoders doesn't kill the formatting on that)
>
> _____________________________________
>
> Andrew Trice
>
> Cynergy Systems, Inc.
>
> http://www.cynergysystems.com
<http://www.cynergysystems.com>
>
>
>
> Blog: http://www.cynergysystems.com/blogs/page/andrewtrice
> <http://www.cynergysystems.com/blogs/page/andrewtrice>
>
> Email: andrew.trice@...
> <mailto:andrew.[EMAIL PROTECTED]
>
> Office: 866-CYNERGY
>
>
>
> ________________________________
>
> From: [EMAIL PROTECTED]ups.com
[mailto:[EMAIL PROTECTED]ups.com]
On
> Behalf Of Jonathan Miranda
> Sent: Friday, October 27, 2006 5:06 PM
> To: [EMAIL PROTECTED]ups.com
> Subject: Re: [flexcoders] gant chart
>
>
>
> Having dove into this long ago with many discussions with people from
> FlexCoders (Ely mostly), I can tell you this is a huge undertaking.
You
> need a:
>
> -GantChart
> -GantSeries
> -GantChartItem
> -GantSeriesRenderData
> -GantRenderer
>
> Just to name a few :) I've got a Gantt chart abou 49% done but haven't
> had time to crank on it....but as Ely said at MAX, people would kill
for
> it if you finished it and released it.
>
> On 10/20/06, Andrew Trice andrew.trice@...
> <mailto:andrew.[EMAIL PROTECTED] > wrote:
>
> You could create itemrenderers for a datagrid that utilize the drawing
> API to draw the horizontal lines for your data.
>
>
>
> For instance, have a grid like this:
>
>
>
> Column 1: task name
>
> Column 2: duration
>
> Column 3: start date
>
> Column 4: item renderer that draws out task length with respect to
width
> of column. Use the drawing api to draw lines/rectangles to represent a
> duration of time.
>
>
>
> You could also have a custom datagrid column header that uses the
> drawing API to draw a scale for the time shown in column 4.
>
>
>
> Using a datagrid component for this also keeps it very easy to get
data
> into your Gantt chart.
>
>
>
> _____________________________________
>
> Andrew Trice
>
> Cynergy Systems, Inc.
>
> http://www.cynergysystems.com
<http://www.cynergysystems.com>
>
>
>
> Blog: http://www.cynergysystems.com/blogs/page/andrewtrice
> <http://www.cynergysystems.com/blogs/page/andrewtrice>
>
> Email: andrew.trice@...
> <mailto:andrew.[EMAIL PROTECTED]
>
> Office: 866-CYNERGY
>
>
>
> ________________________________
>
> From: [EMAIL PROTECTED] ups.com [mailto:flexcoders@yahoogro ups.com
> <http://ups.com> ] On Behalf Of Iko
Knyphausen
> Sent: Friday, October 20, 2006 3:58 PM
> To: [EMAIL PROTECTED]ups.com
> Subject: RE: [flexcoders] gant chart
>
>
>
> There is a flash component out there
> (http://www.anychart.com/products/anychartgantt.shtml
> <http://www.anychart.com/products/anychartgantt.shtml>
). I have
emailed
> them with some questions, but have not yet received a response. If you
> know others, please let me know. I would be quite interested in such a
> chart for my flex apps too...
>
>
>
> I have written a Gantt in DHTML and _javascript_ and it's not entirely
> trivial. It also depends on the kind of features you want to offer,
for
> example dependency lines, summary tasks, task progress, time line
scale,
> just to name a few.
>
>
>
> At the time, I wrote a container and then added task objects on the
fly.
> The container would know how to render the task objects, and the task
> objects themselves carried their information such as start and end
date,
> dependencies, progress status, etc. If your chart is supposed to be
> interactive, you should also offer some events to be raised: e.g. Task
> was clicked, dependency was dragged, chart was scrolled down (so that
> you can connect the chart to a grid and scroll them in parallel). As
you
> can see, it quickly gets complex.
>
>
>
> There is another company that offers interactive Gantts, ILOG
> (http://www.ilog.com/products/jviews/gantt/
> <http://www.ilog.com/products/jviews/gantt/>
) but I am not sure what
> they offer in terms of licensing and whether they will offer anything
in
> the flash/flex space.
>
>
>
> Hope this helps -Iko
>
> ________________________________
>
> From: [EMAIL PROTECTED] ups.com [mailto:[EMAIL PROTECTED]ups.com]
On
> Behalf Of arnold_charming
> Sent: Friday, October 20, 2006 12:27 PM
> To: [EMAIL PROTECTED]ups.com
> Subject: [flexcoders] gant chart
>
>
>
> Hello!
>
> I'm currently working on builidng a gant chart for my application. And
> I have some question for which I would be very gratefull if you could
> help me out.
>
> 1. Because gant chart doesn't have a fix number of tasks, how to setup
> a chart legend?
> 2. How can I build a gant chart from XML file? Till now I just found
> solutions with ArrayColletions.
> 3. How to build a dynamic (programmable) gant chart?
>
> Thank you.
>
