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Re: [Gnash-dev] About Buttons
From: |
Udo Giacomozzi |
Subject: |
Re: [Gnash-dev] About Buttons |
Date: |
Tue, 15 Apr 2008 11:48:27 +0200 |
Hello Sandro,
Tuesday, April 15, 2008, 11:03:57 AM, you wrote:
SS> - The comparison between old and new active characters
SS> triggering a set_invalidated call is bogus. set_invalidated
SS> would still be called if any newly active character was
SS> not in the old active character list, or if number of newly
SS> active characters is smaller then old active characters...
I just noticed the double for-loop that follows that piece of code.
That loop gives sense the size comparison. Actually the comparison
triggers set_invalidated() when items are *removed* from the list.
When items are added to the list, it will be detected by the for loop
below. When new_list and old_list are of equal size, but differ, then
the for loop will detect it (in that case some items in new_list
must be missin in old_list).
Sooner or later set_invalidated() gets called when the list changes.
In short: That code is correct.
SS> - Not currently active characters are still advanced. So if
SS> a sprite active on mouse over consists of a moving thing,
SS> the thing would keep moving while still not visible, and
SS> all frame actions of that character would still be executed
SS> (would that be correct?).
Can you check this with P.P.?
SS> As a side-effect, when these not-currently-active characters
SS> get invalidated the button gets child-invalidated too.
Correct, altough add_invalidated_bounds() will only add the bounds
for visible characters. However, add_invalidated_bounds() doesn't
even need to be called in that case. (the resulting bounds are still
correct, but the check is useless).
Errrr.. where get the instances advanced? There is no *advance()* !? :-O
SS> - The generic get_active_characters() method includes a check
SS> for the "HIT" character, which I belive should never
SS> displayed if its only state is "HIT".
Never displayed? Why? HIT is when you keep pressed a button...
Udo