In the row painter, when painting a centered label, one wants to get
the left/right margin of the non-first rows (without indent). It was a
bad idea to change leftMargin(pit) to do that, because its semantics
are unclear and the the code depends on the fact that this function does
strange things when the paragraph is empty...
Fixes bug #12118.
Introduce a new Row::contents_dim(), which height is restricted to the
row contents and does not contain any extra vertical spacing.
Rely on this for painting selections: if the selection starts on row,
for example, the ascent of the contents dim is considered. If ot was
started above, then the full dim is used.
Fixes bug #3899.
Since the first row may be indented, it is necessary to find out what
the left margin would be on the next row (even if this next row does
not exst.
To this end, modify TextMetrics::leftMargin so that it does not test
whether position is after the last position of the paragraph.
Cosmetics: set the size of label to "small" for Abstract layout in
standard classes and reduce the spacing between label and text.
Fixes remainder of #11939.
The basic value is Inset::textOffset(BufferView*), which can in theory
change with the BufferView zoom and dpi. It is hardcoded to 4 for now.
Moreover, we introduce the virtual inset methods
(top|bottom|left|right)Offset, which can be tweaked for each inset.
No change intended (for now).
This corresponds to what is done on display. The same should be done
for start label too (e.g. beginning of a proof), but this requires more
work.
This required to move the static function getEndLabel to Text.
Fixes bug #11536.
Instead of the weird corner line, display a pilcrow sign (even when
disabled in prefs) to mark inserted/deleted end of paragraph.
Incidentally, this fixes the recent placement bug of the corner line.
In full screen mode, it is possible to restrict the text width. In
this case, the paint bar should not be painted outside of this
restricted area.
Fixes bug #11286.
It is a general problem when doing graphics to know where a line
begins and where it ends pixel-wise. At the instigation of Scott, and
with the use of the kmag magnifier, this commit corrects 3 areas:
* foreign marks were larger than the row element they were supposed to
mark. This could lead to moving lines, depending on paint ordering.
* visible spaces were drawn outside of their box (select a single
space to see this).
* the `L' blinking caret would leave a cursor dropping because the
horizontal part was too wide.
This revives a ten year old idea (and patch) by Dov.
You can now mark in the character dialog text and exclude it from spell
checking.
Fixes: #1042
File format change
Remaining issue: The instant spell checking marks are not immediately
removed, but only after some editing.
Current code would change the color of static endlabel when the
_start_ of line is selected. This is only used with hollywood and
broadway layouts, though.
Change the box endlabel painting code to use Color_selectiontext as needed.
Follow-up to bug #10972.
This gives a more consistent indication of what belongs to an environment
(and semantically, such paragraphs are synonymous to nested standard
paragraphs)
Addresses part of #9261.
It is wrong to compute this at paint time. In general, painting a row
should not require any access to a paragraph object, but we are far
from there now.
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.
This is the same issue that was addressed in the all_sel case at
695b0cc3. The rounding issue only happens at specific zoom and
jusification values.
Fixes part of #8883.
This allows to somewhat simplify the text and avoid some uses of
Paragraph (in the long term, RowPainter should not have to access
these things).
At the same time do a small cleanup to RowPainter: rename
text_metrics_ to tm_, remove pm_ and width_.
1/ simplify logic that triggers margin selection painting
2/ fix logic for end of paragraph markers. They are now selected when
there is an end row margin selection.
3/ avoid rounding problems due to int/double conversions.
For reference, the bug was that quote insets grew bolder because, when
painted over themselves, anti-aliasing made them darker.
It turned out that the fix there created others than were
painstakingly fixed: #7164, #7165, #7174, #7193... More recently, it
created other problems:
http://article.gmane.org/gmane.editors.lyx.devel/163471
We use the right fix here:
* draw background of quote inset when not doing full repaint
* draw background of math macro template when not doing full repaint
* remove hack that grew from #4889 fix.
