Stephan Witt [Sat, 22 Feb 2020 11:11:42 +0000 (12:11 +0100)]
Use real path names for buffer lookup by name of temporary external files.
In case of path names for external files containing symbolic links the real path
and the logical path name may be different for the same file or directory.
LyX is using QDir::tempPath() to create the path name of the temporary directory.
The Qt implementation is free to return the logical or the real path name here and
it happens to be different for various platforms and versions.
The most stable and clean solution is to use the real path name consistently.
Fix clipping for vector formats and when exporting from command line
This amends ea81faa9 that only took into account the postscript format
and did not consider that without GUI an image is not available even if
if it is actually cached. In this case we load the image for obtaining
its dimensions in order to correct the clipping bounding box.
Instead of working around crashes in update of caret geometry, only
request it as needed. The actual computation will take place just
before painting the caret.
It might be that this is overkill and that caret geometry should be
updated unconditionally. One would have to to some timing while idle to
ascertain that.
It is not a good idea to call caretPosAndHeight when the caret is in a
paragraph that is not in cached metrics. This can happen when not
using "cursor follows scrollbar".
This commit refactor things a bit so that testing is done in
BufferView.
Workaround Qtbug where QAbstractScrollArea::mouseMoveEvent(...)
is called falsely when quickly double tapping on a touchpad of a notebook running Windows (only for specific Qt Versions)
The rules for typesetting math differ from the rules for typesetting
text. For example, two italic 'f' chars have to be typeset more closely
than two 'o' chars in text mode, but not in math mode. Qt provides a
method that returns the distance appropriate for drawing a subsequent
character in text mode, but nothing for math mode. Typically, the
distance appropriate for drawing the next character in math mode is
the actual width span by the character, corrected by the rules of
an appendix in the TeXbook. Recently, those rules are followed more
closely in LyX but not exactly, and we have to find a way to adapt to them.
Some symbols may need more spacing around them than the width they span.
So, we use the distance suggested by Qt, unless it is less than the
width of the rectangle bounding the symbol. Before Qt 5.11 the used method
was QFontMetrics::width(), but since then it has been declared obsolete
in favor of QFontMetrics::horizontalAdvance(), whose name conveys better
its meaning.
No status entry is needed as this amends 79998fdc.
Correct or activate some already present shortcuts, and add new ones
for easily obtaining the most common fixed size delimiters.
Pressing '*' after a delimiter will cycle through all sizes.
This restores the debug output as it was intended before the
introduction of the LYXERR macro that was unconditionally outputing
an end of line. This is how this output was appearing until lyx 1.5:
Looking for font family cmr10 ... got: cmr10
got it normal!
instead of as it was since lyx 1.6 and until now:
Looking for font family cmr10 ...
got: cmr10
got it
normal!
When the fonts distributed with texlive with same family name
as ours are also managed by fontconfig, Qt is not able to
discriminate ours by the style only. In order to be sure Qt
will load our fonts, we change the foundry name from 'PfEd'
to 'LyEd' and augment the font family name with this foundry
name. This only works on *nix, because adding a foundry name
seemingly breaks things on Windows. However, this is a *nix
only problem, seemingly.
Change comobox signal to user interaction only to avoid problems with "Apply changes immediately" aka "Immediate Apply". (See https://doc.qt.io/qt-5/qcombobox.html#currentIndexChanged and https://doc.qt.io/qt-5/qcombobox.html#activated.)
Since be836909c52 the positioning of super- and subscripts
for symbol fonts has been broken because the metrics of the
font of the environment (rather than those of the symbol itself)
were used.
Fix paragraph position in TextMetrics::singleParUpdate()
When running redoParagraph, it may happen that the ascent of the first
row changes. Since the ParagraphMetrics position is actually the
baseline of its first row, it may be necessary to update it.
This commit adds the mathed command \mathds that selects a
font more appropriate than \mathbb for typesetting the
mathematical symbols for the natural (N), whole numbers (Z),
rational numbers (Q), real numbers (R), complex numbers (C),
and some others.
As in the \mathbb case, only capital letters are supported,
but in addition one can also typeset a symbol often used for
representing the indicator function (\mathds{1}) and the
letters a, h, k.
projects / lyx.git / log