The font caches can only be used from a single thread at a time.
QFontEngineFT for instance, uses a global static thread storage
which is accessed on releasing and creating engines, and this
causes a crash if the font engine is created on one thread and
released on another.

We use the updatePolish() function to make sure the caches are
empty before entering updatePaintNode(), and then we invalidate
the cache again after updatePaintNode() is done.

[ChangeLog][Text] Fixed uncommon crash in text nodes.

Change-Id: I01dbc2ed58aeebd03d77a157c700330334bdb385
Task-number: QTBUG-38800
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>

- Renamed LICENSE.LGPL to LICENSE.LGPLv21
- Added LICENSE.LGPLv3 & LICENSE.GPLv2
- Removed LICENSE.GPL

Change-Id: I84a565e2e0caa3b76bf291a7d188a57a4b00e1b0
Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>

QTextDocument::baseUrl was introduced in qtbase commit 1f22c1d. The
ultimate goal is to get rid of QQuickTextDocumentWithImageResources
and eventually make QQuickTextEdit's document interchangeable.

Change-Id: Ibafeecc395b52f7200d8164f809bf76538e5620c
Reviewed-by: Alan Alpert <aalpert@blackberry.com>

Change-Id: I3750c47640bf21c3567c5fa1c4667e3e2552942e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

This is necessary for the QtWebEngine module.

This also adds an empty nokeywords test using the same mechanism
as qtbase/tests/auto/tools/moc/no-keywords.h to find conflicts
at compile time.

Change-Id: I9df541720797dd61f078178c2af68ead18ff8bfe
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

Task-number: QTBUG-30804
Change-Id: I6c6993b152285f4bdf34d6e1aa04f25fa7ca41e0
Reviewed-by: Alan Alpert <aalpert@blackberry.com>

Change-Id: I6c3bd7bebe3d62d1cfd0fa6334544c9db8398c76
Reviewed-by: Akseli Salovaara <akseli.salovaara@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>

Change copyrights and license headers from Nokia to Digia

Change-Id: Ie7f5d49ed8235d7a7845ab68f99ad1c220e64d5c
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

We don't need to relayout in painting thread.

Task-number: QTBUG-26361
Change-Id: Idfad1b90e2772e72411df821d02ea596a094f508
Reviewed-by: Andrew den Exter <andrew.den-exter@nokia.com>

For old-style (desktop components) apps using QML 2 on regular density
displays, distance field text will look out of place. We introduce
an option to use the native rasterizer instead if you would rather
have native look and feel than scalable text items.

Change-Id: Idb38e3c89f2deab9ae1963357c6c5fb235ddeab8
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>

Improve checks for geometry changes that don't affect layout, i.e
width increasing when the previous layout didn't wrap or elide.

Set implicit sizes just once during layout rather than setting the
implicit width during and the implicit height after to limit the when
an implicit size change can change geometry.

And if there are multiple layouts of the same text/font combination
re-use cached layout data as much as possible by guarding against
unnecessary property changes on the layout, and not creating a new
layout for calculating the implicit size of truncated text.

Change-Id: Ia05e52e9170e1f5d3364896ab119e00d8a318299
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

Adjust the mouse position to compensate for any alignment offsets
and test the elided text layout for anchors if none is found in
the normal layout.

Change-Id: Idfda3f7e372d0f2d6c1b7bb5f22d7015d52e8239
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

Relic from a prospective change to defer layout of text in more
circumstances.

Change-Id: I75d14e8cb01b86ab36ddbf58da99ba1cde14d801
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

Update the baselineOffset when short cutting layout due to an empty
text property.  And allow alterations to the baseline due to images,
font scaling and custom layouts when doing a layout.

Task-number: QTBUG-24303
Change-Id: I5a31a6108cded490fef8b0674e15558ea4e22d6b
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

Task-number: QTBUG-24521
Change-Id: Idd451d0a8a238a60691386726e34054c0368b658
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

Move less used members to an extra struct lazily allocated

Change-Id: I87e464af4b9d29303705dd7e766f734309ed7763
Reviewed-by: Andrew den Exter <andrew.den-exter@nokia.com>

Painting issues in QtQuick1 meant drawing had to be aligned to pixel
boundaries, since this is no longer a problem we should use qreal
everywhere.

Change-Id: I58e88e10270fa603170f1cedf471bfb53bd89b73
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

Symbols beginning with QDeclarative are already exported
by the quick1 module.

Users can apply the bin/rename-qtdeclarative-symbols.sh
script to modify client code using the previous names of the
renamed symbols.

Task-number: QTBUG-23737
Change-Id: Ifaa482663767634931e8711a8e9bf6e404859e66
Reviewed-by: Martin Jones <martin.jones@nokia.com>

Calculate the font size correctly even when the size is specified
in pixels and update this size when the font changes.
Also make sure that the text layout's font is set before parsing.

Task-number: QTBUG-24458

Change-Id: Ida7723f6e4f4b9fd3a6878076f4beaf5bda8f7f7
Reviewed-by: Andrew den Exter <andrew.den-exter@nokia.com>

Remove some unnecessary members, store colors as QRgb values instead
of QColor, and reorder members to minimise alignment padding.

Change-Id: Id3958429008c97a5714734a529250fe881e2161b
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

These were used when we were porting from QtQuick 1 to QtQuick 2 but
are no longer necessary.

Change-Id: I0eeb7e13b4affdd6ab6c6dddea760afcdf38ee4f
Reviewed-by: Martin Jones <martin.jones@nokia.com>

Query the elided text from the initial layout rather than doing a
second layout of the line to be elided.

Change-Id: I399f99a11046013c0c51add2e2f2dd14b959831a
Reviewed-by: Martin Jones <martin.jones@nokia.com>

Multi-length string eliding was provided by QFontMetrics::elidedText()
which is no longer used for layouts.  So we instead have to do the
string substitution ourselves if the text doesn't fit before finally
eliding.

Change-Id: Iab2e54b332390290d656299a5be148f39f78df9d
Reviewed-by: Martin Jones <martin.jones@nokia.com>

Allows the color of links in text to be changed from the default blue.

This currently only works with StyledText and the distance field
rendererer.  It could be made to work with RichText overwriting the
specified foreground color in all instances or by not setting a default
color in the html parser.  The former would prevent the color being
set with CSS or some future means for altering text formats.  The latter
would break rendering with QPainter.

Task-number: QTBUG-23048
Change-Id: I98df215cabe8a089f648fd4a6206622b4318fb8f
Reviewed-by: Martin Jones <martin.jones@nokia.com>

For Text and TextEdit this is a rename of paintedWidth and paintedHeight
both of which remain as synonyms of the content properties for
compatability.  For TextInput this is a new property.

Task-number: QTBUG-23691
Task-number: QTBUG-15160
Change-Id: Idbdc72fad34922be21b649ca45fc39b5e533ed1a
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

Task-number: QTBUG-24033
Change-Id: Ifa24482b98536300c2f4c643a86517a019de8a84
Reviewed-by: Martin Jones <martin.jones@nokia.com>

This adds a mode where if the content of a Text item doesn't fit
within its bounds the font size is reduced during layout until it
does or a minimum font size is reached.

Task-number: QTBUG-22832
Change-Id: I6198ef03899e2f21b32e313548966ef4b0e3bff1
Reviewed-by: Andrew den Exter <andrew.den-exter@nokia.com>
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

Task-number: QTBUG-21793
Change-Id: Ie7b9f293c6c9a949c1899152c38b61251b0069d3
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.

Change-Id: If39bd256b0fa85eba17ea30f8ab87ea27d758908
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>

Use a shared graphics cache to back the distance fields if
it is available.

Change-Id: Id5e6e7a28e38e349d787e66016b2d0faebc791d7
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>

Replace Nokia contact email address with Qt Project website.

Change-Id: I6a730abc0c396fb545a48b2d6938abedac2e3f1c
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
Reviewed-by: Alan Alpert <alan.alpert@nokia.com>

Specifies the base URL which embedded links in rich text are resolved
against.  By default this is the URL of the item.

Task-number: QTBUG-23655
Change-Id: Ib51b8503a18d9ac4e1801c77b77b3595d8f4912a
Reviewed-by: Martin Jones <martin.jones@nokia.com>

Override QTextImageHandler's image loading as it will attempt to resolve
relative paths and load the image itself if the document returns an
invalid image from loadResource, which we don't want as it bypasses the
pixmap cache and resolves against the application and current working
directory instead of the Text items context.

Change-Id: Ia1d3633036f96d902e1ac03dae5d5b203fba7ff1
Reviewed-by: Martin Jones <martin.jones@nokia.com>

Change-Id: I0a8d99909cac867dce72da70b1bbcb649989a51b
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>

Change-Id: Ie92129887730d3738e14116cf22e1c30b836a415
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>
Reviewed-by: Martin Jones <martin.jones@nokia.com>

Re-use the QQuickTextDocumentWithImageResources class from Text to
allow image resources to be loaded from the pixmap cache.

Change-Id: I13170eefe664447b77f2980fb2fe7b4e2f8eb81c
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

This change moves the QtQuick 2 types and C++ API (including
SceneGraph) to a new module (AKA library), QtQuick.

99% of this change is moving files from src/declarative to
src/quick, and from tests/auto/declarative to
tests/auto/qtquick2.

The loading of QtQuick 2 ("import QtQuick 2.0") is now delegated to
a plugin, src/imports/qtquick2, just like it's done for QtQuick 1.

All tools, examples, and tests that use QtQuick C++ API have gotten
"QT += quick" or "QT += quick-private" added to their .pro file.

A few additional internal QtDeclarative classes had to be exported
(via Q_DECLARATIVE_PRIVATE_EXPORT) since they're needed by the
QtQuick 2 implementation.

The old header locations (e.g. QtDeclarative/qquickitem.h) will
still be supported for some time, but will produce compile-time
warnings. (To avoid the QtQuick implementation using the
compatibility headers (since QtDeclarative's includepath comes
first), a few include statements were modified, e.g. from
"#include <qsgnode.h>" to "#include <QtQuick/qsgnode.h>".)

There's a change in qtbase that automatically adds QtQuick to the
module list if QtDeclarative is used. Together with the compatibility
headers, this should help reduce the migration pain for existing
projects.

In theory, simply getting an existing QtDeclarative-based project
to compile and link shouldn't require any changes for now -- but
porting to the new scheme is of course recommended, and will
eventually become mandatory.

Task-number: QTBUG-22889
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Change-Id: Ia52be9373172ba2f37e7623231ecb060316c96a7
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>

Task-number: QTBUG-22920, QTBUG-22116

Change-Id: Ibe78ce1b0b438eec32955b986a8740f173cd082f
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

The QSG (SceneGraph) prefix is too generic for
Qt Quick(2)-specific classes.

All the classes and files in the declarative/items
directory have been renamed.

In particular, for classes that are currently public,
the renaming is as follows:

QSGView --> QQuickView
QSGCanvas --> QQuickCanvas
QSGItem --> QQuickItem
QSGPaintedItem --> QQuickPaintedItem

The header files have been renamed accordingly
(e.g. qsgview.h --> qquickview.h).

Change-Id: Iac937fff81db20bb639486a793c3aeb5230b038c
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>

Allow more control over the text layouting process in QML.

Give access to every text line through a hook, this gives the
opportunity to position and resize a line as it is being laid out.
It is then possible to lay out the text in columns or around other
objects.

Task-number: QTBUG-21367
Change-Id: I56dc0c1c4b575dc06360c135098024d0324d3656
Reviewed-on: http://codereview.qt-project.org/5351


Reviewed-by: Yann Bodson <yann.bodson@nokia.com>
Sanity-Review: Yann Bodson <yann.bodson@nokia.com>