Re: rounded rectangles problem

On Thu, Aug 11, 2005 at 10:41:08 -0400, James Muir wrote:
Jan Hudec wrote:
On Wed, Aug 10, 2005 at 13:56:18 -0400, James Muir wrote:
instantiate a pathdef inside my RoundedRect or not, and I'm not sure how 
to call set_path_def. I've seen in the Mup::ColorButton example that an 
event is used to set the button color for the first time. I tried 
something similar but without success.
The problem is, that Gnome2::Canvas::Shape is NOT a Gtk2::Widget, so it 
not have realize nor map signals. The SET_PROPERTY approach should be 
and has the added benefit that the shape is reset when the properties are
changed later.

Thanks, Jan, for the suggestion. I've modified the SET_PROPERTY as you 
suggested and still no rounded rectangle.

Hm, strange. But I have only ever used this with Gtk2::Widget objects, so
there may be another gotcha in Gnome2::Canvas::Item, which is not a widget.

I've written a similar program using composition rather than inheritance 
and I get a rounded rectangle. I'd use this rectangle except that I am 
unable to set the 'fill-color', and I get events only when the mouse is 
placed directly on the outline. No signals when the mouse is moved 
inside the rounded rectangle. Is this the correct behavior of the 
Gnome2::Canvas::Shape ? If so, I shall have to come up with a "plan b".

Gnome2::Canvas::Rect->isa('Gnome2::Canvas::Shape'), so shape must provide
enough base functionality for it. So though I don't know for sure, I'd think
it's not correct.

I suggest you take sources of the gnome canvas library itself (not the
bindings, the actual C library) and have a look at GnomeCanvasRect, how it
sets the shape.

By the way, you should be able to inherit GnomeCanvasRE, which comes with the
x1, y1, x2, y2 properties built in (and probably nothing else).

                                                 Jan 'Bulb' Hudec <bulb ucw cz>

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