We are currently using [OFC version 1](http://teethgrinder.co.uk/open-flash-chart/).
It does a great job for us.
However the development is now focused on [OFC v2](http://teethgrinder.co.uk/open-flash-chart-2/) and we want to update the code to use this newer library.
The new library uses json format instead of the current obscure non standard format.
When update is done, see also #624
Also once update is done we can consider other graphs improvements: #532
See ticket #243 for swfobject update.
Currently, with OFC1 pie charts, hovering over a pie slice displays the truncated label in the tooltip. Example: “Gecko (Mozilla – Net…” followed by the count.
The problem observed in ticket #243 where the “Loading data…” would appear in the upper left corner of the div (in Firefox) is spurious in IE and not reproduceable in Safari. The OFC2 examples use the newer swfobject and do not display this problem, so it is expected this anomaly will disappear with the update to OFC2.
In ticket #243, I updated swfobject; however, I didn’t make use of the added support for when Flash isn’t installed. Following is consolidated from ticket #542:
Last few days I’ve been in contact with someone who was using MediaWiki’s Piwik Integration extension, of which I am the author. That extension makes use of the widgetize plugin, and it’d be great if a message appeared saying flash is needed to see the graphs (only if flash isn’t installed).
(In ) - API CHANGE: the API for the function Piwik_AddWidget has changed. The new API is Piwik_AddWidget( $widgetCategory, $widgetName, $controllerName, $controllerAction, $customParameters = array()). See examples of calls in all the core Piwik plugins. This change was necessary to make widgets more modular (they now accept custom parameters).
ADDED: now widgets can be created with custom parameters. This makes it possible to create a widget that calls a controller->action with other custom parameters, this is used in Piwik to draw an evolution graph (module=VisitsSummary & action=getEvolutionGraph) for a given metric (&columns=nb_visits). These custom parameters are automatically forwarded to the sparkline url, the flash graph when clicked on sparkline, etc.
The widget layout is now saved as a JSON string rather than a custom data structure. The dashboard code should be able to read & restore most of the layouts from the old format (except the evolution graphs widgets). Simplified the Dashboard.js, widgetMenu.js, cleaned up what was a messy code.