To be able to run on the same distributions as before we need to have
the same GLIBC version dependency as in Ubuntu 12.04, which is 2.15.
For that we need to remove all usages of GLIBC features from 2.16 and above.
Currently there are three methods used, so they're wrapped in a separate
static library, linux_glibc_wraps.
It is a separate library because it must be compiled without '-flto' flag,
otherwise the inline __asm__ is not working and we get unresolved symbols.
QPainter::viewport() can be a too large rect to be passed as a
clipping region to QPainter on Retina displays.
QPainter in case of Retina displays tries to transform QRegion using
scale matrix and fails with "QRegion: creating region from big
polygon failed" warning message and disables painting completely.
Sometimes Open Sans Semibold fails to load properly on the latest
Windows Creators Update. In that case try to load Segoe UI instead.
An attempt to fix#3276.
Currently the build without implicitly included precompiled header
is not supported anyway (because Qt MOC source files do not include
stdafx.h, they include plain headers).
So when we decide to support building without implicitly included
precompiled headers we'll have to fix all the headers anyway.
Sometimes Text::_maxWidth was not accumulated correctly because
the intermediate text blocks had negative right bearing larger
than the whole width of the next text block, so the final computed
line width was less than some intermediate value. Now we accumulate
the _maxWidth value after each block making this value correct.
Commit 8d354382a4 introduced a regression in RTL phrases display.
When an RTL line had trailing spaces we started displaying them in
front of the text still assuming counted line width value that did
not include those trailing spaces.
Line width is not including trailing spaces width because it is
allowed to fit in the line any number of spaces.
Also text block "left padding" entity was eliminated. If we have
some spaces in the start of the text block (for example a text block
after a link) we just add an empty word and mark those spaces as its
right padding.
Fix a regression introduced in 8d354382a4 which caused an overflow
in _parAnalysis access. We were resizing _parAnalysis array for a
line width without the pending newline character while we used it
for painting a line including the pending newline character. It was
not a problem before, when we were trimming them from the end of
the string, but it results in a buffer overflow and crashes in the
lastest versions. So now we just don't include the newline in the
painted string, so it has exactly the same size as _parAnalysis.
- Use QPainter current pen for selected text in cases we
didn't specify it explicitly in the TextPalette.
- Better rounding of QRectF from QFixed values to QRect selected
background filling areas.
- Using QPainter::viewport() instead of random huge QRect() in
clipping, because it fails to apply this huge QRect() clip region
in Retina paint devices: 2x scale QMatrix::map() is not defined for
QRegion-s having rects with sum of dimensions larger than 100000.
User names in groups, text and links in messages and names
in files and shared contacts not can have different colors
in plain inbox / outbox messages and in selected messages.
Now we can use a separate color for selected parts in Text.
