The code is not ready for situations where some paragraphs that are
not visible have metrics available. This has been made visible by
a4d9315b, which removes a couple of full metrics updates: the screen
was not correctly scrolled after a scrollToCursor() call.
In PararagraphMetrics, some methods are added to be able to handle the
fact that paragraphs have or do not have a position.
In TextMetrics, a new method returns the first visible paragraph.
Finally, in BufferView::updateMetrics, the paragraphs' positions are
reset (in the case where everything is not cleared) and some care is
taken to skip the ones that are not relevant.
The assumption outside of this method is that all the paragraphs that
are in the TextMetrics are visible (we are talking about top-level
TextMetrics here). This could be changed (in order to avoid
recomputing paragraph metrics), but the cost is high in terms of
complexity and it is not clear that the gain in terms of performance
would be important.
Instead of actually fixing the messiness of InsetInfo, let's just fix
the symptom and avoid the access to Paragraph::id() that was crashing
LyX every time updateBuffer/validate/metrics/draw did not happen in
the right order.
Fixes bug #12639.
Move declaration of RowList to Row.h
Move initialization of POD members of Row and Row::Element to declaration.
Make method isVirtual() depend on type.
Add new row element type INVALID and method isValid()
Make methods R::E::left/right_pos inline.
Add method R::E::splitAt() that returns an element containing the
remaining stuff, or an invalid element if nothing was split. breakAt
is now a simple wrapper around this function.
Add method R::push_back().
The bookmarks are shown with circled numbers in the right margin (or
the left margin in RTL mode). A new color "bookmarks" has been added.
Currently bookmark 0 (the return position) is not displayed because it
is very disturbing in practice.
To make this work, a new method BookmarksSection::bookmarksInPar
retuns the list of bookmarks in a paragraph along with their position.
Force redraw when using bookmark-save and bookmark-clear.
Caveats:
- this solution does not show the precise position of the bookmark
(this is supposedly not a problem).
- if several bookmarks are on the same row, they will currently be
garbled. It would be easy to make sure that only one is shown ; what
would be more difficult would be to move the second bookmark lower.
- it is possible to make sure that the markers are correctly centered
in the margin, and that the margin size is large enough to hold the
marker (I did not try all fonts).
Fixes bug #2496.
This computation did not make sense anymore since we began to put the
contents in the Row object. The fact that it worked was a coincidence.
Instead, we set rows as changed() on creation and reset that once they
have been drawn. This will allow in the future for a finer definition
of what to redraw or not.
Also update the PAINTING_ANALYSIS document
We already have a CoordCache of insets dimensions. It is not necessary
to store the same information in two places.
Give a name to CoordCache tables types to improve code readability.
Remove ParagraphMetrics::singleWidth, which is not used anymore.
* ParagraphMetrics::computeRowSignature(): Integrate row's dimensions and selection status in the row signature.
* TextMetrics::drawParagraph(): compute the row signature here and rely on that to decide if a redraw is needed or not.
* BufferView::Private: get rid of the ViewMetricsInfo member. Just keep the ScreenUpdateStrategy.
* BufferView::draw(): full screen update even for singlePar case because the row signature will detect if something needs to be redrawn.
* Text3.cpp: get rid of hack following architecture update.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21650 a592a061-630c-0410-9148-cb99ea01b6c8
(maily move layout related enums into a header of there own to remov
include dependencies, alos rename a few things)
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20598 a592a061-630c-0410-9148-cb99ea01b6c8
- get rid of the cached Dimension. Text inset dimensions are saved in ParagraphMetrics and mathed maintain their own dimension where needed.
- width(), ascent(), descent(): deleted.
- dimension(): now needs a valid BufferView.
- metrics(): now void.
* BufferView::getCoveringInset(): simplify.
* ParagraphMetrics(): now cache inset dimensions.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20420 a592a061-630c-0410-9148-cb99ea01b6c8
* ParagraphMetrics::position_: new private member (and associated access method).
* TextMetrics:
- origin_: new screen position cache.
- use origin_ and ParagraphMetrics::position() instead of the parPos cache.
* Cursor:
- comment out buggy bruteFind() method, will work on that later.
* BufferView::updateMetrics(): refactor and simplify to use new cache and to gather everything SinglePar related.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20214 a592a061-630c-0410-9148-cb99ea01b6c8
^ Row:
- changed_: new boolean to inform change status at draw time.
- crc_: new crc_ signature
- inline pos() and endpos()
- replace width(), ascent() and descent() direct access with dimension().
* ParagraphMetrics
- do not maintain row_signature_ anymore
- rename calculateRowSignature() to computeRowSignature() and make it public
* TextMetrics
- redoParagraph(): don't clear the ParagraphMetrics row list, reuse and update it.
- rowHeight(), rowWidth(), rowBreakPoint(): take first/end positions instead of Row.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19895 a592a061-630c-0410-9148-cb99ea01b6c8
../../../src/mathed/../ParagraphMetrics.h:76: error: extra qualification 'lyx::ParagraphMetrics::' on member 'calculateRowSignature'
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16546 a592a061-630c-0410-9148-cb99ea01b6c8
