Re: goo_canvas_polyline_new_line dynamic move

[Jonathan Armani <dbd asystant net>]

Thanks, I have read your code.

I thought I could do that without creating any structure but I have
resolved it with one :

typedef struct canvas_item {
	GooCanvasItem * item;
	int type;
	GooCanvasItem ** connection_in;
	int nb_in;
	GooCanvasItem ** connection_out;
	int nb_out;
} canvas_item;

Then I update all the parent / child.


On Fri, 05 Feb 2010 11:15:35 +0000, Damon Chaplin
<damon karuna eclipse co uk> wrote:
> On Fri, 2010-02-05 at 00:30 +0100, Jonathan Armani wrote:
>> Hi,
>> 
>> I have two item "connected" with a goo_canvas_polyline_new_line and I
>> want
>> it to follow when moving one of the two connected item.
>> 
>> I have tried multiple signals but it doesn't work.
>> 
>> (I will have multiple connected item in the future, item1 <--- polyline
>> --
>> item2 --- polyline --> item3).
> 
> I use polylines between items in SynthForge:
>   http://sourceforge.net/projects/synthforge/
> Look at the second screenshot - it does exactly what you are doing, i.e.
> when you drag items around the polylines move with them. (Unfortunately
> the code is a bit complicated so might not help much.)
> 
> Where is your code going wrong? Do you get the button press events? the
> motion events? It helps if you send a complete test app that is supposed
> to work.
> 
> Damon