This patch makes sure that, every time a ParagraphMetrics has its
position set, the inset positions for the insets held by this
paragraph are remembered too.
This is complementary to BufferView::updatePosCache, but I do not have
hard evidence that this is required other than to increase robustness.
It may help in some cases when scrolling the document (scrollbar,
cursor up/down, page up/down).
This unbreaks input methods by splitting the part of the code that
does the actual drawing to a separate paintPreeditText() method which
is called from paintEvent().
The proper solution would have been to introduce the preedit string in
the Row object, like is done for completion, but this is too complex
to do at this point.
The only change in behavior is that now the commit string is inserted
in one fell swoop, intead of emulating a number of key events.
Rename cursor to caret to in order to avoid ambiguity. The caret is
now the blinking thing only.
Remove unused header contents, and some not so useful methods.
No intended change of behavior.
The trick is to remember in BufferView what has been done at the
previous draw, so that the row that contained the caret can be
repainted if needed.
To this end, add an argument paint_caret to BufferView, although
painting the caret is not the job of the BufferView (at this point).
BufferView::needRepaint will act as an interface with
TextMetrics::drawParagraph to know whether the painting of a given
row should be forced.
Currently everything is done at the top row level, so that, if the
caret is in a large table, the whole table will have to be repainted.
It is not clear yet that this is necessary.
Historically, because of two-stage drawing, LyX has been painting on a
Pixmap, and this pixmap is copied to screen at paint event time.
Now that we have three-stage drawing, it is possible to delay the
painting to actual paint event and avoid the intermediate Pixmap.
Known bug: the cursor is never erased.
Normally the two stages of drawing are
1/ compute metrics of insets/rows/paragraphs/mathrow...
2/ draw the elements and cache their positions
Now the three stages are
1/ metrics
2/ nodraw: do not draw the elements, but cache their position
3/ draw the elements (and store again their position; it does not
seems to hurt performance).
Revive the NullPainter: this replaces the setDrawingEnabled mechanism
with a painter that does nothing. The advantage is that updatePosCache
(renamed from setPosCache) does not need anymore to be invoked from
the frontend.
updatePosCache (the nodraw stage) is called at the end of
BufferView::updateMetrics.
The work is done now in Paragraph::anonymize().
Move the handling of the lfun to Buffer class.
Document the new feature in release notes.
(cherry picked from commit 1dba36c7cec6aeec2576e7a99e2967e867076a01)
This is a follow-up to 758de957.
- unify the metrics and drawing of \sqrt and \root using helper
functions mathed_root_metrics and mathed_draw_root.
- compute the vertical spacing above the nucleus of the root following
rule 11 of the TeXbook. In particular, it is different in inline and
display style.
- draw the root glyph without hard-coded pixel values. Make the line
width depend on the zoom.
more work is needed to implement properly rule 11:
- Ideally, we should use sqrt glyphs from the math fonts. Note that
then we would get rule thickness from there.
- The positioning of the root MathData is arbitrary. It should
follow the definition of \root...\of... in The Texbook in
Apprendix B page 360.
Fixes bug #10814.
(cherry picked from commit 16af6e7c5067fff0873587af30833e0b8006c435)
(cherry picked from commit 6cb6f78ae9050140c75af089350cd7cccc0b58e1)
Now the helper class contains logic that checks whether buffer are
known before closing them. This avoids potential crashes.
Use it in different places to siplify code. It is not clear at this
point whether it should be used everywhere.
Followup to bug #10847.
(cherry picked from commit cd9e42dc3529980257d2b0fe6fd623fd2b99a1e6)
It may happen that the buffers are visited in order buffer1,
buffer2, buffer1. In this case, we want to have only one undo group
in buffer1. The solution is to replace buffer_ with a set<Buffer*>.
A use case among others is InsetLabel::updateReferences.
(cherry picked from commit cc7364dfc50c399e99158fd9efe2f3eb0e6f4570)
The correct behavior is to go to position 0 going up from first row,
and to end of row when going down on last row.
The targetx value of the cursor is not updated, which makes cursor
movement more natural.
Fixes bug #10701.
(cherry picked from commit 34285cc6830b061c18998bff8385092a311170a8)
The issue here was that the element was only removed from the queue
after the func request was processed, but within that process, other
function could access the queue, so the queue could even be empty
when this function finally wanted to remove the item.
Fixes: #10406.
(cherry picked from commit dadec50a18d92d24d42e1ccf7474f07a2a66b5b4)
When pasting "\big" without any following delimiter, avoid
processing the same token again and again. For unknown reasons,
the delim docstring turns out to always be not empty: even when
it simply contains a '0' (no delimiter follows), its length is 1.
Fixes bug #11027.
(cherry picked from commit 8e8b3f610495493f4f1bff3f4a0ff48f4eab4539)
Several problems:
* The regex failed at names such as 1_text_2_text.tex
(returned "2_text.tex)
* The regex failed at names such as 12_text.tex
(returned "2_text.tex)
* Masters with digits in the name (2018_text.tex) were
tracked as their own children
(cherry picked from commit 398e026250f6d7d1687bdf04a8a27a61946d088f)
Do not attempt to load, nor allow to set, a different engine in this
case.
Fixes: #11022
(cherry picked from commit 2f6ada6644614df5f402efc7cbc1d27911b45376)
The number of paragraphs can change here, so pit() can become invalid.
Fixes: #9983
(cherry picked from commit 6e4e0869006aa4c225162164aaa14a70d041facf)
breakRow should only produce an empty row when there is nothing left
in the paragraph.
Fixes bug #10996.
(cherry picked from commit 253b935f65759ba15b6af02117f8316e2aaf676e)
At some time it seemed like a good idea in breakRow() to return early
when the row was bound to be empty. It turns out that this creates two
symptoms:
* empty paragraphs will not have an end of paragraph marker
* since row width is not correctly computed in this case, caret ghosts
can appear in master.
This commit removes the oprimization and replace the do {} while()
construct to a straightforward while() {}.
Related to bug #10952.
(cherry picked from commit 76f0a3dd4ee5c7958c6dea79628ef8c2ac2c59bd)
The former need to be translated to the buffer language, the latter to
the GUI language.
Fixes: #10946
(cherry picked from commit 5db4d712ef660273c1c12f211fdb4adf5a792ec3)
This is currently only relevant fo InsetListings, which falls back to
a fixed-width encoding under specific conditions. It is now possible
to query the inset about that and report the correct encoding in
DocIterator::getEncoding.
Addresses the second part of #10995
(cherry picked from commit f924ef29660af5afd22b96744a3e0bb128e1a58d)
On platforms where char_type is typedef'd to an integral type
rather than to wchar_t, when using the insertion operator <<
a single char_type is output as the number corresponding to the
code point of the character rather than as the character itself.
In this case, one has to use put().
(cherry picked from commit 144f06a00c58619557fb431877041fd9e4297a0f)
This gets rid of the hardcoded latin1 encoding for verbatim. Instead,
verbatim now inherits the encoding from the context, which is what is
actually wanted here.
Fixes: #9012, #9258
A brand new event compressor based on Kuba Ober's cleverly simple
solution: <https://stackoverflow.com/a/21006207>.
Fix#9362, #9461, #9933: Lyx suddenly gets keyboard keys wrong, and
deadlocks
Fix#9790: LyX should perform key event compression (for improving the
remote X connections one would also need to implement
Qt::WA_KeyCompression)
Fix#10516: slowness on repeated arrow keys with IBus and Qt5
Patch pulled from
https://github.com/gadmm/lyx-unstable/commit/bf5a1efb0db5bfc2b
Signed-off-by: Juergen Spitzmueller <spitz@lyx.org>
(cherry picked from commit 43e4b8073445d147be353013e3a7e081e11653ba)
This works around a TextMetrics issue where Row::beg/end_margin_sel
are sometimes not reset correctly when there is no selection on the
row.
In master a fix for this problem has been done at 654cded1. Here we
prefer a much simpler work around that fixes the symptom.
Fixes bug #10972.
At some time it seemed like a good idea in breakRow() to return early
when the row was bound to be empty. It turns out that this creates two
symptoms:
* empty paragraphs will not have an end of paragraph marker
* since row width is not correctly computed in this case, caret ghosts
can appear in master.
This commit removes the oprimization and replace the do {} while()
construct to a straightforward while() {}.
Related to bug #10952.
(cherry picked from commit 76f0a3dd4ee5c7958c6dea79628ef8c2ac2c59bd)
