At some point since Qt 4.8, the nbsp character has acquired
the whitespace attribute, causing it to be treated exactly
like an ordinary space. To account for this, we add an extra
check in the layout code to avoid breaking on non-breaking
spaces even if they have the whiteSpace flag set.
This is a temporary fix for the regression. The line breaking
algorithm needs to be refactored and support Unicode tr14
properly, which it currently doesn't.
[ChangeLog][Text] Fixed lines breaking on non-breaking spaces.
Task-number: QTBUG-39832
Change-Id: Ibd7e1a11ce4b82c611ecda1542c8638a67bf3cae
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
...and check the returned value where it may cause undefined behavior
(i.e. negative amount of items or iteration from -1 to n).
Change-Id: Ib7bd9ab178526df45b792ad48b91ebbab6be861a
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
formats() -> formatCollection()
additionalFormats -> formats
QTextEngine has three different code paths: in context of QTextDocument,
additionalFormats are currently _additional_ formats;
though in QTextLayout, they are the only formats in use;
and the QRawFont-related path shares the QTextLayout's behavior.
This is a preparation step to consolidating these three into a single one.
Change-Id: I427ccc3c2f672ce090899bb0a0995972315daafa
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Don't store unused values (pos_x and levels) and re-use
already calculated ones (itemStart, itemEnd, and itemLength).
Also const-ify some members to make the code a bit more clear.
Change-Id: Ied80ebf9e4e7e8a1d057e413a9bd24f84b8aaf92
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Due excess 'break' in loop, function xToCursor() with "CursorOnCharacter" option
for BiDI text returns wrong cursor position (start glyph position) all time.
Task-number: QTBUG-38846
Change-Id: Iba6671905e0785da6f343db19d6c3bb3e2cf5e8a
Reviewed-by: Andrey Volykhin <andrey.volykhin@lge.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Actually guarantee cursor doesn't move in this case for both logical
and visual modes (just what the documentation says we already do ;)
Change-Id: Iabdca7aa1d205672386a0095e3487e585611cdb5
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
and rename SpecialData:: resolvedFormatIndices to resolvedFormats.
Instead, resolvedFormats now stores QTextCharFormat shared copies.
Change-Id: I4a22cb3f5679b980ef52d47e4e1935663dd257ea
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
...and thus consume 4 bytes less per glyph and increase the performance a bit.
It seems, the only CTFontGetAdvancesForGlyphs() returns both x and y
advances, though y advances are always equal to 0 for horizontal
orientation and x advances are always equal to 0 for vertical orientation.
Also, rename `advances_x` to `advances` for consistency
and declare QGlyphLayout's data size in a single place.
Change-Id: I56b20f893f8a6feb7aa870e3edbca99dd93ba2e2
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
If the text is centered, the x/y position in the selection QRectF may
be a multiple of 0.5 which is rounded up. This rounding causes
misalignment of the selection region with the text.
The alignment is fixed by using qFloor on the x and y components.
Task-number: QTBUG-34218
Task-number: QTBUG-34234
Change-Id: I4f2fadeb38602f62a93773c6e5faecf03b28069f
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Before we add the current cluster we need to check if there's
space for it. Calling checkFullOtherwiseExtend() also has
the side effect of resetting the space data. We would add
the cluster without checking for space when showing separators,
causing broken behavior like we would count the space in the
current item as trailing space, which would make us chop the
end of the string.
Task-number: QTBUG-28832
Change-Id: I8169662218ff6e645575d4e89a57f6b234f3c4cb
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Default values should have mark-up to denote that they are code.
This commit changes:
-"property is true" to "property is \c true".
-"Returns true" to "Returns \c true".
-"property is false" to "property is \c false".
-"returns true" to "returns \c true".
-"returns false" to "returns \c false".
src/3rdparty and non-documentation instances were ignored.
Task-number: QTBUG-33360
Change-Id: Ie87eaa57af947caa1230602b61c5c46292a4cf4e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
As of now, we'll have everything related to the additional formats handling
just in a single place. Make specialData private to prevent accessing it
from outside. This helped in tracking-down several related issues:
- in format(const QScriptItem *), the resolvedFormatIndices can not be empty
at that point, so the code path is dead;
- in resolveAdditionalFormats(), testing if formats has not been indexed yet
is not needed since they are indexed just in the setter;
- in useRawFont mode, hasFormats() didn't check if QTextEngine really
has some formats, which potentially leads to formatting artifacts.
Change-Id: Id4b912888fd5a1fa83f01007170134b6386e2879
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Remove all trailing whitespace from the following list of files:
*.cpp *.h *.conf *.qdoc *.pro *.pri *.mm *.rc *.pl *.qps *.xpm *.txt *README
excluding 3rdparty, test-data and auto generated code.
Note A): the only non 3rdparty c++-files that still
have trailing whitespace after this change are:
* src/corelib/codecs/cp949codetbl_p.h
* src/corelib/codecs/qjpunicode.cpp
* src/corelib/codecs/qbig5codec.cpp
* src/corelib/xml/qxmlstream_p.h
* src/tools/qdoc/qmlparser/qqmljsgrammar.cpp
* src/tools/uic/ui4.cpp
* tests/auto/other/qtokenautomaton/tokenizers/*
* tests/benchmarks/corelib/tools/qstring/data.cpp
* util/lexgen/tokenizer.cpp
Note B): in about 30 files some overlapping 'leading tab' and
'TAB character in non-leading whitespace' issues have been fixed
to make the sanity bot happy. Plus some general ws-fixes here
and there as asked for during review.
Change-Id: Ia713113c34d82442d6ce4d93d8b1cf545075d11d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
By changing textOption() to return a const reference we will get a
performance increase when accessing this function internally.
Task-number: QTBUG-28193
Change-Id: I65b594d844ebaee6d72f4a95d11bd2c5e801fab4
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Get rid of the + 1 in addition to the ascent and descent.
Task-number: QTBUG-27658
Change-Id: I8721226a034099ebe348cad3c49ac711c7fe44b9
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
To avoid regressing due to de58eb64bc,
we need to return a pixel aligned height in QTextLine::height() and
also use pixel aligned heights when calculating the position of
lines as well as the bounding rect of the layout.
Later, we can add a QTextLine::naturalHeight()
or something like that which gives the fractional value, but until then,
we need to access private API in QPainter to get the correct
alignment, since we still don't want to align the height of the
last line in the layout, we only want to align the origin of each
line.
Task-number: QTBUG-27740
Change-Id: I12325f07d33aaf1a1b967e0a11492759d0f565d9
Reviewed-by: Caroline Chao <caroline.chao@digia.com>
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>
Change copyrights and license headers from Nokia to Digia
Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Introduce QCharAttributes and use it instead of HB_CharAttributes everywhere in Qt
(in Harfbuzz, the HB_CharAttributes is only used in the text segmentation algorithm
which has been moved from HB to Qt (well, most of it)).
Rename some members to better reflect their meaning,
remember to keep HB_CharAttributes in sync with QCharAttributes.
Also replace HB_ScriptItem with a (temporary) QUnicodeTools::ScriptItem struct
that will be replaced with a more efficient/friendly solution a bit later.
The soft hyphen and the mandatory break detection has been factored out
of the default text breaking algorithm to a higher level in order to refactor
the QCharAttributes bitfields and to optimize the implementation for the common case.
Change-Id: Ieb365623ae954430f1c8b2dfcd65c82973143eec
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
\Auml for a with umlaut doesn't seem to work with qdoc anymore,
so replace this with the unicode value instead. Also, add
reference to arguments in glyphRuns() function.
Change-Id: I31861b384b822d1fbdcafbeeac07ea68a0e5fd07
Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>
Since we could have moved the line position (QTextLine::setPosition),
the truncating position should be adjusted with that.
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>
(cherry picked from commit ca89c49fa2c5cbb3945897046f33eed9f7da846c)
Change-Id: I89ea1a3776a50732181bdfea9e79b4dddef950d4
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
Primary goal, make the front page of the Qt GUI module a bit more
clarifying and avoid downstream references inside the Qt GUI docs.
Change-Id: Icbcfbb64b93963add889bf83711daa9575885c02
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
to keep them consistent with positions for all other flags.
This changes the internal behavior so that attributes[0].lineBreakType now means
"break opportunity at start of the text (before the first character in the string)"
and is always assigned with HB_NoBreak to conform rule LB2
(see http://www.unicode.org/reports/tr14/#LB2).
The current implementation is based on the sample implementation from tr14
that aimed to be as simple as possible rather than to be optimal.
From now, we can use pieces of the attributes array "as is"
without having to adjust some positions. Or we can analize some long text
by chunks (e.g. paragraph by paragraph) and consume less memory.
This introduces a minor overhead that will be eliminated shortly.
Change-Id: Ic873a05a9d5203b1c3d5aff2e4445a3f034c4bd2
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
addNextCluster() advances position up to "end" that equals to
eng->layoutData->string.length() if current script item is the last one
Change-Id: I173286f3002c9c64dd1a89b902958699b6273d68
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
QTextLine::cursorToX returned the line width for cursor positions
outside the width of a wrapped right to left line because the
leading space width was always calculated as 0.
Returning a non-zero width for the leading space does cause
problems for other uses of QTextEngine::alignLine() though
as the textAdvance already doesn't include the leading/trailing
space so subtracting it there double accounts for it.
Task-number: QTBUG-24801
Change-Id: I56cbb139814c32813bebb49de8c045b29154a958
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
This change moves the snippets and images to the modularized
directories.
Change-Id: I5f86f598fbe7c47d632c613b85d94ced89ba2c29
Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
This is a very partial revert of 10ac80708.
Revert back to using engineFromScript, which is reentrant, for cases other
than the "rawfont mode". In that last case, reentrancy is not a big issue
so far as the only client is WebKit, and this is used in the web process,
with no threaded rendering.
Change-Id: I047b04cf0236d52e6d548f34cddd3dcc7c3c5f83
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>
The positions returned by getGlyphPositions() in QFontEngine are
for the base line of the glyphs. We offset this by -ascent to get
the top of the actual bounding rect.
Task-number: QTBUG-22919
Change-Id: Id82c66ecfbdf58064f5ad26f4193fa55ac26bc7c
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
When an empty new block is being added, the layoutData->memory data
will be 0, thus QTextEngine::attributes() will return 0. We should
only access the attributes pointer when some text actually exist.
Task-number: QTBUG-24718
(cherry picked from commit cac12f4592477d99ef6fffaad40345bf85ef53b5)
Change-Id: I203b283dd28653d4b57ba8bfffb259c773f67f19
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>
This is a semi-automatic search, so I'm
reasonably sure that all the exported ones
have been caught.
Change-Id: I5b122db2498dbb2aee50c7ad95c67e708aade45b
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
The purpose of this change is to allow shaping complex
text while using QRawFont.
This is needed for WebKit so that we can switch to
using QRawFont everywhere and be more in line with
what other WebKit ports do.
Since this change slightly bends the aim of QRawFont,
let's reserve this for internal use for now.
Change-Id: I5ec0881f50ce288350bd277570cb5f1fb70c355c
Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
Historically, we've calculated font height as ascent+descent+1.
In Qt 4, a patch was added to work around this by subtracting
1 from the descent of the font engines. We now remove the +1 and
the work arounds.
Change-Id: I7e25d49b97ac892015d3328f32d70eb9a7c2d88f
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@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: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
For a character generating more than one glyphs, glyphsRun() needs
to check the next glyph index after the requested range. If that
glyph index is more than one larger than the glyphsEnd we currently
get from logClusters, then glyphsEnd need to be set to the next
glyph index minus one.
Change-Id: I795c595d349418ba755b088d6fe6ff24a6e7dd15
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>
Text like Urdu use mixed RTL scripts from Persian, Arabic and so on.
In RTL, sub glyph runs for individual font engines must be added from
end to start, so that the positions can still be calculated in a left
to right manner.
Task-number: QTBUG-23404
Change-Id: I7e55e4b7b858b3abbe94e352c93d36de6226ff58
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>
When moving cursors, non-stop positions are skipped, however certain
input sequences can still lead us there. In such cases we should
simply ignore those positions in cursorToX.
Task-number: QTBUG-7076
Change-Id: Ia0a25931f4043359f72a6c0c14a74b905e40b93e
Reviewed-by: Eskil
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
5f2b6dd2a50275bc05ae5d7e9dd8902d6d49d9df increased refcounts for
font engines in QTextEngine cache, we need to decrease them when
the QTextEngine is deallocated.
Task-number: QTBUG-21222
Reviewed-by: Eskil
(cherry picked from commit 8935a84e18804c7ff4b7336e3cfdf1cd558eaf1c)
Change-Id: I079c903d60e1bbcf78f555f8044dde69af82cf0e
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
Class complex enough already without int i as member variable.
Furthermore, some methods use loop variable with same name, shadowing
the member one.
Change-Id: Idf2f5e34f130a60eb6121480e596e443f23641dd
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
Frederik Gladhorn
Eskil Abrahamsen Blomfeldt
Konstantin Ritt
Andrey Volykhin
Jonathan Liu
Marcel Krems
Jerome Pasion
Axel Waggershauser
Sergio Ahumada
Andy Shaw
Samuel Rødal
Eskil Abrahamsen Blomfeldt
Iikka Eklund
Jiang Jiang
Gunnar Sletta
Andrew den Exter
Casper van Donderen
Pierre Rossi
Oswald Buddenhagen
Pekka Vuorela
Marc Mutz
Stefan Hundhammer
Jason McDonald