Re: libseed-list Clutter.Animator.set_key - g_value_set_float: assertion `G_VALUE_HOLDS_FLOAT (value)' failed

[tomw <tomw ubilix com>]

thanks for your swift reply. 

On Fri, 2010-12-10 at 16:24 +0800, Alan Knowles wrote:
> Try this..
> 
> var start_value = new GObject.Value(imports.gi.GObject.TYPE_FLOAT);
> var end_value = new GObject.Value(imports.gi.GObject.TYPE_FLOAT);
> 
> start_value.set_float(200);
> end_value.set_float( 300);

does not change anything, same errors
> 
> in your version, the start_value was set to a Javascript number, which gets converted to a DOUBLE type 
> 
> otherwise you could do:
> 
> animator.set_key(rec, "x", 2, a, [ imports.gi.GObject.TYPE_FLOAT,  start_value]);
> animator.set_key(rec, "x", 2, b,  [ imports.gi.GObject.TYPE_FLOAT,  end_value] );

gives:

(seed:2938): GLib-GObject-CRITICAL **: g_value_set_float: assertion
`G_VALUE_HOLDS_FLOAT (value)' failed

(seed:2938): GLib-GObject-CRITICAL **: g_value_set_float: assertion
`G_VALUE_HOLDS_FLOAT (value)' failed

** (seed:2938): WARNING **: ArgumentError - probably due to incorrect
gir file (which may be fixed upstream) argument 5 must not be null for
function: Animator.set_key 


> 
> Regards
> Alan
> 
>  --- On 10/Dec/2010, tomw wrote: 
> > Hi, 
> > 
> > trying to pass the variable to a Clutter.Animator.set_key method I'm
> > getting the following error messages:
> > 
> > (seed:2219): GLib-GObject-CRITICAL **: g_value_set_float: assertion
> > `G_VALUE_HOLDS_FLOAT (value)' failed
> > 
> > (seed:2219): Clutter-CRITICAL **: clutter_interval_set_initial_value:
> > assertion `G_VALUE_TYPE (value) == priv->value_type' failed
> > 
> > from my limited knowledge it seems that the values are not properly
> > passed to the method
> > 
> > Any idea how to fix this?
> > 
> > br, tomw
> > 
> > 
> > 
> > the code is as follows:
> > 
> > #!/usr/bin/env seed
> > 
> > const Clutter 	= imports.gi.Clutter;
> > const GObject   = imports.gi.GObject;
> > 
> > Clutter.init(Seed.argv);
> > 
> > 
> > var stage = Clutter.Stage.get_default ();
> > 
> > stage.set_size(640, 480);
> > 
> > var rec = new Clutter.Rectangle();
> > var col = new Clutter.Color();
> > col.from_string("light blue");
> > rec.set_color(col);
> > rec.set_anchor_point_from_gravity(Clutter.Gravity.CENTER);
> > rec.set_size(100,100);
> > 
> > 
> > var start_value = new GObject.Value(imports.gi.GObject.TYPE_FLOAT);
> > var end_value = new GObject.Value(imports.gi.GObject.TYPE_FLOAT);
> > 
> > start_value = 200;
> > end_value = 300;
> > a = 0.5;
> > b = 0.8;
> > 
> > var animator = new Clutter.Animator();
> > var tl = new Clutter.Timeline({duration: 10000});
> > 
> > animator.set_timeline(tl);
> > animator.set_duration(3000);
> > animator.set_key(rec, "x", 2, a, start_value);
> > animator.set_key(rec, "x", 2, b, end_value);
> > 
> > 
> > stage.add_actor(rec);
> > stage.show();
> > animator.start();
> > 
> > Clutter.main();
> > 
> > stage.destroy();
> > 
> >  
> > 
> > _______________________________________________
> > libseed-list mailing list
> > libseed-list gnome org
> > http://mail.gnome.org/mailman/listinfo/libseed-list
> 
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