On Sat, 15 Oct 2005 19:27:47 -0400 dan sinclair <[EMAIL PROTECTED]> babbled:
> I've been working to port EWL to textblock2 and it's coming along pretty
> well, but I've run into an issue. When I try to setup my triggers (for
> areas that get mouse overs and that kind of thing) they don't seem to be
> working.
>
> The way I'm doing this is to do:
>
> cur1 = evas_object_textblock2_cursor_new(t->textblock);
> cur2 = evas_object_textblock2_cursor_new(t->textblock);
>
> evas_textblock2_cursor_pos_set(cur1, tb_pos_start);
> evas_textblock2_cursor_pos_set(cur2, tb_pos_end);
>
> /* get all the rectangles and create areas with them */
> rects = evas_textblock2_cursor_range_geometry_get(cur1, cur2);
>
> Except rects is always NULL. I've check tb_pos_start and tb_pos_end and
> they both have numbers that make sense. So, I took a look a the
> textblock2 code and ended up looking at evas_textblock2_cursor_pos_set
> and wondering, what the hell?
>
> void
> evas_textblock2_cursor_pos_set(Evas_Textblock_Cursor *cur, int pos)
> {
> if (!cur) return;
> if (!cur->node) return;
> if (cur->node->type == NODE_FORMAT) pos = 0;
> if (pos < 0) pos = 0;
> else if (pos > cur->node->len) pos = cur->node->len;
> cur->pos = pos;
> }
>
> This will only move the position of the cursor inside the node it is
> currently pointing too? Is that useful? I'd expect, given the name, that
> it would position the cursor inside the textblock at the given position,
> not in whatever node it's pointing too.
>
> If this isn't a bug, what is the correct way I should be doing my EWL
> code above?
aaah! i see a bit of confusion. it places the cursors at CHARACTER BYTE "pos"
IN the node it is looking at. you need to select the text node first - it is
pointing at none to start with. jump to thefirst node (or whatever node). in
tb2 unlike tb1 everything is divided into nodes. a node is either a format node
or a text node. you can walk the node list using calls (u'll see them). tb2
doesnt deal in absolute character positons from the start of the tb - its
relative to the node start. basically i suggest that when u insert a text node
and there should be anchors, a great way to do this is insert an empty format
like " " before and after the anchor, then get the node which the anchor text
is in (go to the last node, walk back 1 from there and you are looking at it,
and set the cursor to the node start evas_textblock2_cursor_char_first()).do
this with 1 cursor u created, then make a copy of that cursor and jump it to
the end of the node evas_textblock2_cursor_char_last() and now you have it
nicely isolated :) just keel those 2 cursors around. delete them when you
delete the tb - they will move around with the text as u insert or delete etc.
like a real cursor would, and when u need to find the geometry that anchor uses
query it and get a list of rects in return :)
--
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler) [EMAIL PROTECTED]
裸好多
Tokyo, Japan (東京 日本)
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