| Commit message (Collapse) | Author | Age | Files | Lines |
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Requires adapting a few config checks since cmake currently
does not detect directwrite.
Task-number: QTBUG-83255
Task-number: QTBUG-83931
Change-Id: I521f1924f701260b41dccbcecf87b19f08df5ccc
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
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For fonts with embedded bitmaps, we cannot trust the HHEA and
OS/2 tables, since there are a different set of font metrics
in the EBLC/CBLC tables for each of the predefined bitmap
sizes.
In this case, we can safely fall back to the metrics returned
by the system, as the inconsistency we were originally fixing
was only between OS/2 and HHEA and will not matter for the
bitmap fonts.
This patch also simplifies the code path through the font
engines a bit. Instead of setting the system metrics in the
processHheaTable() function when the table cannot be found,
we instead always fetch the system metrics at the very start
of initializeHeightMetrics() and then override if there are
no embedded bitmaps, and if the HHEA and OS/2 tables are
available. This also reduces the number of virtual functions
needed to sort out the height metrics.
Fixes: QTBUG-83754
Change-Id: Ib9dc6fc6cf972e48209a4a272469d2b4bd1ebffe
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
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Qt assumes that ascent+descent is the bounding height of the
text, but for historical reasons, the ascent for some fonts
will not contain the diacritics. On Windows, the preference
is to use data from the OS/2 table which were explicitly
invented to work around this, but on other platforms we
are not respecting this table. This causes a text layout
that looks fine on Windows to have overlapping characters
on e.g. macOS.
To make vertical metrics (ascent, descent, leading) consistent
across all platforms, we don't blindly trust the values we get
from the underlying font system, but apply in the following order:
1. If OS/2 table exists and USE_TYPO_METRICS flag is set, we
use the typo metrics from OS/2 table
2. If OS/2 table exists and USE_TYPO_METRICS flag is not set,
we use winAscent/winDescent from OS/2 and the line gap from
HHEA table.
3. If no OS/2 table exists, we try to get ascent, descent and
line gap from the HHEA table.
4. If the HHEA table does not exist (not an SFNT), we fall back
to the system-provided metrics. (on macOS, we know the
system-provided metrics will match the data in HHEA, so we
skip parsing that table and use the data from CoreText if
there is no OS/2 table).
Task-number: QTBUG-80554
Change-Id: I41e6561a99513698c8e42451b4ec98bd5eb6892f
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
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Conflicts:
configure.pri
Also required s/solid\.color/solidColor/ in a couple of places in:
src/gui/painting/qpaintengine_raster.cpp
Change-Id: I29937f63e9779deb6dac7ae77e2948d06ebc0319
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Color fonts may also contain regular alphabet characters that
should be rendered with the current pen. In Qt, however, these
characters were drawn into the cache with a default pen color
of black.
Since all characters in a font is currently backed by the same cache,
and it would require a lot of plumbing to get around this, a step
in the right direction is to include the current pen color in the
cache as long as it is an RGB cache. This means that drawing
text with the color font with different pen colors will create
different caches.
There is no API to select font color on Freetype currently, but
this problem has also not been observed there, as the fonts
in question, with both regular and color glyphs, are not being
detected as color fonts (so the text color will be correct).
So Freetype will be left out for now.
[ChangeLog][QtGui][Text] Fixed bug where regular text rendered
with a color font would always display in black.
Task-number: QTBUG-55096
Task-number: QTBUG-74761
Change-Id: Icc7dbf73241db1e7cc6a0de18c2de927aeecf713
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
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Change-Id: I3cfcfba892ff4a0ab4e31f308620b445162bb17b
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
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Add override, disable copies where appropriate and use = default
for trivial functions.
Change-Id: Ia5bc7419b1aa053c5503ea7dfaf11cb6dfafd2e2
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Remaining uses of Q_DECL_OVERRIDE are in:
src/corelib/global/qcompilerdetection.h
src/corelib/global/qglobal.cpp
doc/global/qt-cpp-defines.qdocconf
(definition and documentation of Q_DECL_OVERRIDE)
tests/manual/qcursor/qcursorhighdpi/main.cpp
(a test executable compilable both under Qt4 and Qt5)
Change-Id: Ib9b05d829add69e98a86238274b6a1fcb19b49ba
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
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This is used to create the bounding box in QFontEngine::properties(), which
in turn is used for the FontBBox when generating PDFs. The result was that
the bounding width in the output was 0 and Adobe Reader complained that the
PDF was malformed. We could implement the proper bounding rect in properties()
at some point, instead of assuming an origin at x = 0 for instance. The
metrics for that are in the head table. But for silencing the warning in
Reader, just implementing the maxCharWidth() function is sufficient.
[ChangeLog][Windows][PDF] Fixed a bug in PDF output when using high-dpi
scaling which was causing the display of warnings when opening the
file in Adobe Reader.
Task-number: QTBUG-58954
Change-Id: I2540571863d4dd0f85af533b591f75dad3f0d75b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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This allows creating or extending QPA plugins to provide access to QFont
and related types.
It concerns both GDI and DirectWrite engines, as well as the regular and
the freetype based font databases. The qt.qpa.fonts logging category has
been moved together into the QWindowsFontDatabase related files to avoid
depending on the qwindowscontext.h header file. Finally, QwindowsNativeImage
is following pending a future refactor with similar code in qpixmap_win.cpp
and the Windows XP style.
Change-Id: Iddff2f3d715e3ab7695e6c2052b7596a01fd6fa8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
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