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Today's Topics:
1. [Bug 570943] GtkEntry can't input when toggling visibility
twice (gtkmm (bugzilla.gnome.org))
2. [Bug 572978] Glib::ustring allows comparison to 0
(glibmm (bugzilla.gnome.org))
3. [Bug 572978] Glib::ustring allows comparison to 0
(glibmm (bugzilla.gnome.org))
4. [Bug 572978] Glib::ustring allows comparison to 0
(glibmm (bugzilla.gnome.org))
5. [Bug 572978] Glib::ustring allows comparison to 0
(glibmm (bugzilla.gnome.org))
6. [Bug 573482] libglademm: thoughts about signal autoconnecting
(gtkmm (bugzilla.gnome.org))
7. [Bug 573482] libglademm: thoughts about signal autoconnecting
(gtkmm (bugzilla.gnome.org))
8. [Bug 573482] libglademm: thoughts about signal autoconnecting
(gtkmm (bugzilla.gnome.org))
----------------------------------------------------------------------
Message: 1
Date: Sat, 28 Feb 2009 04:21:23 +0000 (UTC)
From: "gtkmm (bugzilla.gnome.org)"
<[email protected]>
Subject: [gtkmm bugzilla] [Bug 570943] GtkEntry can't input when
toggling visibility twice
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8
If you have any questions why you received this email, please see the text at
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gtkmm | general | Ver: 2.4
anheibb03dlj changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |UNCONFIRMED
OS/Version|All |Windows
------- Comment #4 from anheibb03dlj 2009-02-28 04:21 UTC -------
(In reply to comment #3)
> Could you please double-check it on Windows too?
Sorry for taking a long time to reply you.
i have tested it again, the entry still couldn't input. my computer os is
windows xp professional sp3, then i also have tested it on xp sp2, it has the
same result.
my compile environment:
windows xp professional sp3
tdm mingw 4.3.2
gtkmm 2.4
My english is poor, sorry for any inconvenience.
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------------------------------
Message: 2
Date: Sat, 28 Feb 2009 11:17:11 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[email protected]>
Subject: [gtkmm bugzilla] [Bug 572978] Glib::ustring allows comparison
to 0
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8
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glibmm | strings | Ver: unspecified
Murray Cumming changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected],
| |[email protected]
------- Comment #1 from Murray Cumming 2009-02-28 11:17 UTC -------
I bet Daniel knows why.
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------------------------------
Message: 3
Date: Sat, 28 Feb 2009 11:42:42 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[email protected]>
Subject: [gtkmm bugzilla] [Bug 572978] Glib::ustring allows comparison
to 0
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8
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glibmm | strings | Ver: unspecified
------- Comment #2 from Daniel Elstner 2009-02-28 11:43 UTC -------
I haven't actually tried it yet, but I think it's most likely because we have
inline bool operator==(const ustring& lhs, const char* rhs)
in ustring.h. Your C++ standard library (i.e. GNU libstdc++) probably doesn't
have it, and the string literal therefore goes through
std::string::string(const string::char_type*)
first. Calling the constructor implicitely _and_ interpreting 0 as a pointer
constant would require more than one hop, and therefore doesn't happen.
Any volunteers for actually verifying this hypothesis? ;-)
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------------------------------
Message: 4
Date: Sat, 28 Feb 2009 12:46:00 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[email protected]>
Subject: [gtkmm bugzilla] [Bug 572978] Glib::ustring allows comparison
to 0
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8
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glibmm | strings | Ver: unspecified
------- Comment #3 from Armin Burgmeier 2009-02-28 12:46 UTC -------
There is this definition in
/usr/lib/gcc/x86_64-pc-linux-gnu/4.3.3/include/g++-v4/bits/basic_string.h:
template<typename _CharT, typename _Traits, typename _Alloc>
inline bool
operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
const _CharT* __rhs)
{ return __lhs.compare(__rhs) == 0; }
I have verified that this is indeed used for this code:
std::string s;
s == "foo";
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------------------------------
Message: 5
Date: Sat, 28 Feb 2009 13:56:02 +0000 (UTC)
From: "glibmm (bugzilla.gnome.org)"
<[email protected]>
Subject: [gtkmm bugzilla] [Bug 572978] Glib::ustring allows comparison
to 0
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8
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glibmm | strings | Ver: unspecified
------- Comment #4 from Daniel Elstner 2009-02-28 13:56 UTC -------
(In reply to comment #3)
> There is this definition in
> /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.3/include/g++-v4/bits/basic_string.h:
>
> template<typename _CharT, typename _Traits, typename _Alloc>
> inline bool
> operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
> const _CharT* __rhs)
> { return __lhs.compare(__rhs) == 0; }
OK. I think this is different because it is a template. See Stroustrup, chapter
13.3.2: Templates are resolved _before_ overloads or extra type conversions
are considered. At that point, the compiler looks for a match to the argument
list
(const std::string&, int)
and the operator==() template as defined above won't match that, and that's it.
std::min() and std::max(), for instance, also exhibit this behavior -- both
arguments have to be of the same type if the template type is to be derived
implicitly.
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------------------------------
Message: 6
Date: Sat, 28 Feb 2009 22:06:34 +0000 (UTC)
From: "gtkmm (bugzilla.gnome.org)"
<[email protected]>
Subject: [gtkmm bugzilla] [Bug 573482] libglademm: thoughts about
signal autoconnecting
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8
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gtkmm | general | Ver: unspecified
------- Comment #3 from Stas Sergeev 2009-02-28 22:06 UTC -------
The beginning of the discussion is here:
http://mail.gnome.org/archives/gtkmm-list/2009-February/msg00154.html
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------------------------------
Message: 7
Date: Sat, 28 Feb 2009 22:12:46 +0000 (UTC)
From: "gtkmm (bugzilla.gnome.org)"
<[email protected]>
Subject: [gtkmm bugzilla] [Bug 573482] libglademm: thoughts about
signal autoconnecting
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8
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gtkmm | general | Ver: unspecified
Stas Sergeev changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
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------------------------------
Message: 8
Date: Sat, 28 Feb 2009 22:17:57 +0000 (UTC)
From: "gtkmm (bugzilla.gnome.org)"
<[email protected]>
Subject: [gtkmm bugzilla] [Bug 573482] libglademm: thoughts about
signal autoconnecting
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8
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gtkmm | general | Ver: unspecified
Stas Sergeev changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #129691|0 |1
is obsolete| |
------- Comment #4 from Stas Sergeev 2009-02-28 22:18 UTC -------
Created an attachment (id=129753)
--> (http://bugzilla.gnome.org/attachment.cgi?id=129753&action=view)
updated patch
In reply to:
http://mail.gnome.org/archives/gtkmm-list/2009-February/msg00177.html
Murray Cumming <murrayc murrayc com> wrote:
> again from your get_slot() via dynamic_cast<>. Of course the application
> code needs to specify the get_slot()<> template type (via
> get_widget()<>) so that the dynamic_cast<> can succeed.
With the attached new patch, there is
no need to specify the type, as it uses
the SlotType typedef of the SignalProxy
classes.
The example still uses get_widget()<>, but
it should use singal_autoconnect().
signal_autoconnect() can be implemented by
iterating the widget tree and calling
Slots::connect() for each.
To implement that, I need to know how can
I iterate the widget tree.
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------------------------------
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