On Fri, 30 Nov 2012 12:54:52 -0200 Gustavo Sverzut Barbieri
<barbi...@profusion.mobi> said:
> On Fri, Nov 30, 2012 at 12:47 PM, Gustavo Lima Chaves
> <gl...@profusion.mobi> wrote:
> > We have been working on a widget that will aid a lot on the
> > implementation of preferences/configuration windows and UI elements in
> > Elementary-based applications, and we do think that the code is mature
> > enough to be presented to the community now.
> >
> > Prefs is a widget that populates its view with widgets
> > bound to data types (following the instructions of a ".epb" file that
> > describes a set of items) and handles the storage/restoration of such
> > data on a configuration file automatically.
> >
> > The ".epb" file is similar to a ".edj" file and is created by a tool
> > named "elm_prefs_cc" (based on edje_cc) that receives a ".epc" file as
> > input (similar to a ".edc" file).
> >
> > Here's a excerpt from an epc file:
> >
> > collection
> > {
> > page
> > {
> > name: "main";
> > version: 1;
> > title: "Preferences Widget";
> > subtitle: "Prefs";
> > widget: "elm/vertical_frame";
> >
> > items {
> > item {
> > name: "universe";
> > type: INT;
> > label: "Ultimate Answer of Life, the Universe and
> > Everything";
> > editable: 1;
> >
> > int {
> > default: 42;
> > min: 0;
> > max: 150;
> > }
> > }
> >
> > item {
> > name: "label";
> > type: LABEL;
> > label: "Just a label...";
> > }
> >
> > item {
> > name: "text";
> > type: TEXT;
> > editable: 1;
> >
> > text {
> > placeholder: "This is a text field (:";
> > default: "default str.";
> > deny: "^[0-9]*$";
> > }
> > }
> >
> > item {
> > name: "date";
> > type: DATE;
> > label: "First EFL Developer Day";
> >
> > date {
> > default: 2012 11 05;
> > min: 1980 11 1;
> > max: 2200 12 2;
> > }
> > }
> >
> > /* ... */
> > }
> > }
> > }
> >
> > As you see, items (think of edc parts) are grouped in pages (think of
> > edc groups).
> >
> > With subpage support, we can already create lots of functional config.
> > screens. In the future we could surely extend it to make toolbars,
> > lists, etc.
> >
> > For your convenience, the prefs widget also searches for an
> > appropriated “.epb” file in some predefined places and tries to load
> > the “main” page if a specific page isn’t provided. The same is valid
> > for the file that holds the user configuration.
> >
> > To help with the understanding of the mechanics of this preferences
> > infrastructure, we have done three documented examples and an initial
> > reference for the ".epc" file can be found in the docs as well.
> >
> > We hope that you enjoy this work and provide us your feedback.
>
> Rocks, good work team.
>
> Now that E has support to load elm, we can write some dialogs for e18
> using elm_prefs and saving some typing on our side :-)
that sounds good. maybe 70% of prefs are simple enough to do this way for e17.
the rest can indeed be done with custom code+swallows etc.
> As a side note, one can use the elm_prefs_data manually even without
> the gui part. And the gui part allows swallowing generic objects, then
> we can extend it with more complex visuals like in the xrand case.
--
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler) ras...@rasterman.com
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