Commit Graph

34973 Commits

Author SHA1 Message Date
Thiago Macieira
a16d0074b9 QUtf8: Add some UTF-8 text operation functions
The first, isValidUtf8(), as the name says, returns true if the string
is valid UTF-8. As a bonus, it also returns whether it's valid US-ASCII.

The other two are meant to compare an UTF-8 string to either a Latin1
one or an UTF-8 one, without memory allocation.

Change-Id: Ic38ec929fc3f4bb795dafffd150ad0d63e28cd32
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2018-02-03 21:31:57 +00:00
Thiago Macieira
687dc7fac7 QUuid: add a way to get the string form without the braces
While we're at it, add a way to get it without the dashes too. I'm
calling it "id128", as in "128-bit ID", as seen in journald's sd_id128_t
type and the sd_id128_xxx() API.

[ChangeLog][QtCore][QUuid] Added a parameter to both toString() and
toByteArray() to allow controlling the use or not of the braces and
dashes in the string form.

Change-Id: I56b444f9d6274221a3b7fffd150cde706cfc5098
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2018-02-03 21:30:37 +00:00
Martin Smith
017569f702 doc: Add missing \fn commands for new members
New members were added to QVarLengthArray and QVector,
but the engineer didn't document them. Since they are
only slightly different versions of existing functions,
their \fn commands were added to the eisting qdoc comments.

Some defined(Q_CLANG_QDOC) uses were also added.

Change-Id: I8a5505ca27efc9205b1387ed0be310e4b74ec490
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-02-03 17:26:07 +00:00
Martin Smith
f1eb4c4463 doc: Add tests of Q_CLANG_QDOC
Some defined(Q_CLANG_QDOC) uses were added.

Change-Id: I5688fee0d0d8f00bb97e3e63bd02a68ddbfdda11
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-02-03 17:25:52 +00:00
Martin Smith
edc6d4f914 doc: Add qtlinguist to depends for QtWidgets
QtWidgets has one link to the linguist manual, so it needs
to see the3 index file for qtlinguist.

Change-Id: I2bbbc4cc9e6d43fed1b6cdee556bc9c4d5f01299
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-02-03 17:25:38 +00:00
Martin Smith
e177fc4d39 doc: Change \l StyleSheetEditor to \c StyleSheetEditor
A \l was changed to \c to be consistent with all the other references
to the class name..

Change-Id: Ic7449a06e0a1f1d6d7087e11cc85258e81a0dfab
Reviewed-by: Martin Smith <martin.smith@qt.io>
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-02-03 17:25:27 +00:00
Martin Smith
fc1ff9badf doc: Add 2 missing return types to \fn commands
Return types were missing from two \fn commands, but clang-qdoc
did not detect they were missing on macOS. clang-qdoc on linux
did detect them. This could mean there is a problem with the
function that matches a \fn signature with its declaration in
the database. It might be too forgiving.

Change-Id: I01f107a6162e2f36b594b5d3dd4029b8ef2db678
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-02-03 17:25:12 +00:00
Martin Smith
a374e164ef qdoc: Remove __cplusplus from the defines list
__cplusplus was removed from the list of defines passed to
qdoc because it should not be there for clang-qdoc.

Change-Id: I32802e68d915f7a5b717f16ba26a1cd57d7ff645
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-02-03 12:46:34 +00:00
Christian Ehrlicher
1aa3edf3f8 QListView: Honor css :first/:middle/:last Pseudo-States
Properly set QStyleOptionViewItem::viewItemPosition to honor the css
Pseudo-States.

Task-number: QTBUG-27110
Change-Id: I9b9bb4913210feb665fd9d00a71dc4a953a93606
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@qt.io>
2018-02-03 10:01:41 +00:00
Friedemann Kleint
daabb8f63d QtEdidSupport: Fix private headers
Fix warnings:
QtEdidSupport: WARNING: qtbase/src/platformsupport/edid/qedidparser_p.h does not have the "We mean it." warning
QtEdidSupport: WARNING: qtbase/src/platformsupport/edid/qedidvendortable_p.h does not have the "We mean it." warning

Amends 5f7ab88055.

Change-Id: I3868096344480d509d7b7c1833389adaa67623a0
Reviewed-by: Pier Luigi Fiorini <pierluigi.fiorini@liri.io>
2018-02-02 07:21:49 +00:00
Friedemann Kleint
120abd19a9 Skip QWSIF::WindowScreenChanged events if the screen is unchanged
WindowScreenChanged events might be reported repeatedly from the QPA backends
until the event has reached GuiApplicationPrivate::processWindowScreenChangedEvent()
which sets the screen. Ignore events in case the screen is already correct.

Task-number: QTBUG-65580
Task-number: QTBUG-62971
Change-Id: Ie5fc9830771e816db942355efbe5a48e829914cb
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
2018-02-02 07:21:24 +00:00
Friedemann Kleint
2bf4dd1302 Diaglib: Make mouse event logging more verbose
Add information about mouse tracking/grabbing for widgets
and window where applicable.

Change-Id: Idfe8bef6d146ff06dfe95c0bad5e29e7a4ea7adc
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
2018-02-02 07:20:55 +00:00
Andy Shaw
e4fc098a53 Make it easier to specify test databases on a per system level
Instead of having to modify the tst_databases.h file whenever you want
to add a test database, this will now read from a file to find what
databases are available. This defaults to dbs.json in the same directory
or the QT_TEST_DATABASES_FILE environment variable can be set to point
to the file that contains the databases. The latter makes it easier for
CI then to have something set up on a per configuration basis.

The SQLite database stays hardcoded so this will continue to be tested as
before without any additional changes.

Change-Id: I7e7ccde6a6be3e490dd640b1590e3b691a6b2ab3
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2018-01-26 11:33:07 +00:00
Martin Smith
4ca0d76454 doc: clang-qdoc must not see certain function declarations
The macro Q_DECLARE_INTERFACE declared some qobject_cast() functions
that clang-qdoc must not see in the contexts where the macro is used.
This update prevents that from happening by ensuring that Q_CLANG_QDOC
is not defined when the macro is defined.

This update also adds a \fn command for a declaration of qobject_cast()
that was missing in the documentation. There are two versions of the
function, one with a const parameter and one with a non-const parameter,
and they both share one qdoc comment.

Change-Id: Ic74d0aaae62767cd0391474ee95ae3f4f820b06e
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-01-24 10:02:08 +00:00
Martin Smith
f28d0d8ae8 doc: Add documentation for swap() functions
The functions had been added without documentation.
This update adds the documentation.

Change-Id: Ib29e9356b26c248b5fcc9f13ecf77371fbae054a
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-01-24 10:01:58 +00:00
Martin Smith
f30d733d1c doc: Add more missing return types to \fn commands
Added missing return types to \fn commands and removed
some unnecessary \internal comments.

Change-Id: Ie6691f83a1c510134d1e83c3d98758360a67217e
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-01-24 10:01:50 +00:00
Martin Smith
f53cbd2688 doc: Fix a property declaration for clang-qdoc
The * must be adjacent to the type for clang-qdoc.

Change-Id: Icc3dedcb2f4cd426993901b8f3003c942e753c68
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-01-24 10:01:42 +00:00
Martin Smith
43fbf30efa doc: Fix many qdoc warnings, mostly missing return types
Fixed many cases of missing return types in \fn commands.
Added a fake GLxxx typedef for a GL type that wasn't there
because the GL includes weren't accessible. Also added some
fake declarations for a few functions declared in namespace
Qt in QtWidgets that must be seen by qdoc in QtCore.

Change-Id: Id82476042d0563d32fa85c4ae81a58c1298a468a
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-01-24 10:01:26 +00:00
Anton Kudryavtsev
d5aaa5635c QOffscreenIntegration: add missing override
Change-Id: I8165b44e28bd8da637e75e5b11bc429cdf2deb02
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2018-01-24 08:48:33 +00:00
Friedemann Kleint
43b9c9b993 QDockWidgetTitleButton: Limit icon size to dpiScaled(10) on Windows
Adding larger pixmaps to the icon caused the icon to grow.

Task-number: QTBUG-38776
Change-Id: I29148d70afa55e287f2ad254e449a98c4aa631fb
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@qt.io>
2018-01-24 07:04:46 +00:00
Friedemann Kleint
d58162127a QCommonStyle: Add dock title bar icons
Add larger pixmaps for the dock title bar icons; override
them by the XPM in fusion style to maintain the behavior.

Task-number: QTBUG-38776
Change-Id: I7d0e022bbf620d2aad2b6ee011b8bb9a745d7c3b
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@qt.io>
2018-01-24 07:04:35 +00:00
Friedemann Kleint
f61304fc77 Rename existing dock title icons to contain "macstyle"
Make way for adding dock title icons to QCommonStyle.

Task-number: QTBUG-38776
Change-Id: If1729478f55f0bce5e04399d0cca98afd2facb31
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@qt.io>
2018-01-24 07:04:32 +00:00
Andy Shaw
efec288f58 itemviews: When an index widget gets focus, update the current index
By ensuring that the current index follows the focus of an index widget,
we can ensure that moving the cursor will happen in the way that is
expected from the focused widget.

Task-number: QTBUG-27793
Change-Id: Ia36891a94ce41c7d12fba678de23a6f3b69374ae
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
2018-01-22 09:50:03 +00:00
Anton Kudryavtsev
6f9c5c85ca QTextItemInt: replace 0 with nullptr
While touching the code, move initialization from
body of ctor to initializer list

Change-Id: Idfcb4fb771d1414268f8685874395ca54b20621a
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2018-01-22 08:20:13 +00:00
Yulong Bai
4d898a73e6 QMenuBar: Fix repetitive emission of triggered() when using addAction(QString)
The action which added by QMenuBar::addAction(const QString &text) already
connected relevant signals and slots implicitly, however, while
QMenuBarPrivate::updateGeometry -ing, it reconnects them
if there's a extension button associated with a hidden popup menu.
In that case the QMenuBar::triggered would be fired twice.
Since the QAction's ownership may be changed or added dynamically,
there are still very rare cases like several widgets share the same
QAction object to result in this problem.

[ChangeLog][QtWidgets][QMenu] Fixed a bug in QMenu that caused QMenuBar::triggered
to be fired multiple times.

Task-number: QTBUG-25669
Change-Id: I4d52e82a2136a992e0b37118e41237d96a2c5d22
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
2018-01-21 17:54:47 +00:00
Liang Qi
b3e7e9b182 Merge "Merge remote-tracking branch 'origin/5.10' into dev" into refs/staging/dev 2018-01-21 15:39:37 +00:00
Frank Richter
2e5294883b Windows QPA: Avoid 'large' mouse cursors over RDP
On some combinations of RDP client and server a large mouse cursor
results in a hang of the RDP session. However, the 'touch' drag
facility (creating a transparent window) works just fine, so use
that when encountering a large cursor on RDP.
(The threshold of 96 for a 'large' cursor was extracted from the
spec, as that is the largest supported size mentioned.)

Change-Id: I9782c45e8bd6640f36bb5a392961681a99e214e6
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2018-01-21 11:08:12 +00:00
Liang Qi
65a97fccc6 Merge remote-tracking branch 'origin/5.10' into dev
Conflicts:
	tests/auto/widgets/itemviews/qtreeview/tst_qtreeview.cpp

Change-Id: If089d5010d15c33b3c1f13912d4386207456c1a9
2018-01-20 22:36:19 +01:00
Martin Smith
5e8bc07cb2 doc: Fix several minor qdoc warnings
The fixes included undocumented enum values, which are now
marked as omitted, adding a test for Q_CLANG_QDOC for a
couple windows enum values, adding \fn commands for a pair
of member functions in QLocale, and a \fn command for an
obsolete function in QSqlError.

Change-Id: I12a8ea7287039096b9cfe7870d2ab213a3d78dcf
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2018-01-20 13:54:37 +00:00
Martin Smith
99dc25c686 doc: Fix all remaining non-link qdoc warnings
The fixes included adding missing '!' characters to qdoc comment
markers, correct misspelled words, adding documentation for an
anonymous enum type, and replacing Q_QDOC with Q_CLANG_QDOC.

There remain 12 qdoc link warnings in QtBase.

Change-Id: I00447722e6e029f5aed273b3cd571cef33c119b4
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2018-01-20 13:54:22 +00:00
Igor Mironchik
046622cdf3 Fix explicitly set width not being respected
The size of the QStaticText was always adjusted, even if setTextWidth()
was used. Now size of the QStaticText is calculated according to
the set width of the text, and if no width was set, then the
automatically adjusted size is used.

[ChangeLog][QtGui][QStaticText] Fixed explicitly set width not being
respected.

Task-number: QTBUG-65836
Change-Id: If2f9f6952fb168f4bcb6d8fabfdc7360f8a36485
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2018-01-20 11:22:53 +00:00
Alex Trotsenko
1303327a71 QNativeSocketEngine: fix typo in warning message
Change-Id: Ic53a8a53b882f1e6b6434b943fff0a6fcd95f341
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2018-01-20 10:52:01 +00:00
Allan Sandfeld Jensen
dd58ddd5d9 Add rvalue overload of insert/prepend to QVarLengthArray and QVector
Improves performance and STL compatibility by adding rvalue versions
of prepend and insert.

[ChangeLog][QtCore][QVarLengthArray] Added rvalue overloads of
prepend and insert.

[ChangeLog][QtCore][QVector] Added rvalue overloads of prepend
and insert.

[ChangeLog][QtCore][QVarLengthArray] Can now contain movable but
non-copyable types, such as std::unique_ptr.

Change-Id: I6c946acc5b67502c91c52ac5dea67cedb1af93a5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-01-20 09:27:14 +00:00
Igor Mironchik
0d23b7f074 Use QColor(0, 0, 0, 0) to mark body text in QStaticText
QStaticTextPrivate::paintText() now uses QColor(0, 0, 0, 0) to mark
body text. QPainter's pen color was used before this commit
(that was always black) that leads to different colors of body text if,
for example, links are in body (first block painted with correct color
set by QPainter::setPen() but after link body text was always black).
Now QPainter::drawStaticText() will draw body text with set pen in
any case.

[ChangeLog][QtGui][Important Behavior Changes] Fixed a bug where
QStaticText would not use the QPainter's pen color for text when other
text colors were also in use. Internally this reserves
QColor(0, 0, 0, 0) for use with QStaticText.

Task-number: QTBUG-45957
Change-Id: If3e180e3083cdac1b4236e738acd15572f19ab69
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2018-01-20 09:23:30 +00:00
Lionel CHAZALLON
276ec1ab00 eglfs/kms : implement nativeResourceForScreen
This will return the crtc_id for the given screen.

Change-Id: Ia4510a730e2d98c705f382644e2ab5a432612c02
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2018-01-20 07:01:08 +00:00
Lionel CHAZALLON
731651af99 eglfs: Forward nativeRes.ForScreen.() to backends
Change-Id: I928f97483806ee74ca844941eed455ff4f9d9508
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2018-01-20 07:00:31 +00:00
Edward Welbourne
4cce7dc19d Test Russia's post-DST transitions are reported correctly
This is a regression test for bugs resulting from failure to take
account of the MS TZ APIs fake-DST handling of standard-time
transitions happening during DST.  Has to skip the 2014 test on Win7,
as it's so old it doesn't know about the (for it) "future" transition.

Task-number: QTBUG-42021
Change-Id: I853b86d03a86f0269371bf1622bf63882fb8ee5d
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-01-19 13:57:38 +00:00
Edward Welbourne
1d2e3a5452 Don't try (Any,Any,Any) before a partially-specified locale
We unconditionally tried Any-ing out various tags of a locale without
checking the remainer weren't Any, which would get us the C locale in
some cases where we might have done better.  So check some retained
tag isn't Any before Any-ing out any tag.

In the process, add a separate variable for the ID with likely tags
filled in, to distinguish it from the supplied localeId (thereby
somewhat clarifying what's afoot) and save duplicating the
construction of this.

Task-number: QTBUG-64940
Change-Id: Ibd9f1aba6862434cf00fbf77ba00288ac9a50a3b
Reviewed-by: Jason Erb (Suitable Technologies) <erb@suitabletech.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-01-19 13:57:25 +00:00
Martin Smith
0f9f716f36 doc: Remove inappropriate qdoc comment markers
Removed the '!' from two comments because the functions being
documented are static functions declared and defined in the
.cpp file. They are not public.

Change-Id: Ie3b2c32c64102634b6b2a4c438da191536a426d6
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2018-01-18 18:25:27 +00:00
Allan Sandfeld Jensen
0ffc39806e Fix cast-function-type gcc 8 warning
Gcc 8 now warns against casting functions taking references to
functions taking pointers:

warning: cast between incompatible function types from ‘QVariant (*)(const int&, const int&, double)’ to
‘QVariant (*)(const void*, const void*, double)’ [-Werror=cast-function-type]

Suppressed by casting over void(*)().

Change-Id: I48bee53253b8e87110e8a49efa761fc2add89c5a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-01-18 18:22:44 +00:00
Christian Ehrlicher
e6fa35ff14 Sync QItemDelegate::doLayout with QCommonStylePrivate::viewItemLayout
QItemDelegate::doLayout added a margin after the checkbox which is not
done within QCommonStylePrivate::viewItemLayout. This created a small
but visual difference between using QItemDelegate or QStyledItemDelegate.
The additional margin was removed from viewItemLayout somehwere between
4.4 and 4.5 so it was intentional.

Change-Id: I2fc3f287fe8b181355edeebec9626c49d85fe74d
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
2018-01-18 18:01:39 +00:00
Martin Storsjö
bfc96c9c0e Only define QT_FASTCALL on x86_32
The __fastcall calling convention is silently ignored on other
architectures. The GNU attribute regparm is allowed but doesn't
make sense on x86_64. On other architectures, the attribute isn't
supported at all.

This fixes building with clang for MinGW/ARM and ARM64.

Change-Id: Ice1c6eadd0e90b2e5e34736542ee49a25dc67fe6
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-01-18 16:02:07 +00:00
Allan Sandfeld Jensen
0ed471419a Fix gcc 8 string-op-truncation warning
Don't use the full size of dest in strncpy, we override the last byte
anyway afterwards.

Change-Id: I9f1618cc9019e0060f01deed58a726caa1989d3f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2018-01-18 16:01:29 +00:00
Morten Johan Sørvig
4944f4d57c Cocoa: Prevent crash on focusObjectChanged()
Don’t crash on focusObjectChanged to a QWindow with
a null QPlatformWindow.

Change-Id: Ibf426521d6c8f8b2b2e94d5b92020fa510a74133
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2018-01-18 12:44:31 +00:00
Anton Kudryavtsev
f0c38af8a7 QFontEngine: use QStringBuilder more
Change-Id: I7dd00080962a245e5fc67ef623d7b3a4dab69c80
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2018-01-18 11:33:37 +00:00
Friedemann Kleint
d4079b0797 uic: Support id-based translations
Use Ids from newly introduced id attribute depending
on the global form setting.

Change-Id: I0a5094d5543c0714c88511fa159b60afc9be3c81
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2018-01-18 11:31:09 +00:00
Martin Storsjö
8072c36eeb Skip arm pixman drawhelpers on windows just like on ios
Windows on arm (which uses clang, or msvc, but no gcc is available for
that setup) can't assemble these sources.

(On linux, builds with clang force deferring it to the external
assembler, but for windows on arm, no gas compatible external
assembler is available).

Change-Id: I139572257884cfdc57d3c32061a8c2e28c6e24de
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2018-01-18 10:32:57 +00:00
Nico Vertriest
8688f2d4ab Doc: add doc to Anchor Layout Example
Task-number: QTBUG-60635
Change-Id: Iec6cae8c3caeac4bfabddae79b6ed2b47c5f2edf
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
2018-01-18 09:24:39 +00:00
Martin Smith
1c8f7082f7 doc: Add missing return types to \fn commands, fix mis-specified ones
This update corrects several qdoc warnings about undocumented
parameters, which are actually caused when the return type is not
included in the \fn command, or when the return type is mis-specified
(includes static, or lacks needed template parameters).

Change-Id: Ic49139b88424e93609fbd01bc0836436d13a8f9a
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2018-01-18 06:32:32 +00:00
Martin Smith
8b9b3e2f29 doc: Fix remaining qdoc warmings for Vulkan stuff
Several uses of #if QT_CONFIG(vulkan) were modified to
for classes QVulkanFunctions and QVulkanDeviceFunctions
was added to qplatformvulkaninstance.h, because the
include file that contains them doesn't exist when
vulkan isn't there.

Change-Id: I392202ab5fe9bb4c558a991870e6ebf79254aec0
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2018-01-18 06:32:25 +00:00