New method TextMetrics::findRowElement, excerpted from CursorX.
Reimplement getSurroundingPos using Row information. This is easy when
the cursor is inside a row element. At row element edges, different
situations can occur; hopefully all these situations are taken into
account.
Rename the old getSurroundingPos to getSurroundingPosOrig and
transform getSurroundingPos into a wrapper that compares the two
methods. This will be removed when we are confident that the new
function is equivalent to the old one.
It will then be possible to remove also the Bidi class (at last!).
These were all found by cppcheck. Even in constructors that are there "only
because of std containers" the class should be initialized correctly. You can
never know whether such an object does not get used, and then a nice crash
caused by dereferencing a NULL-pointer is better than undefined behaviour.
* convert cursorX to new scheme; old computation is still there for the sake of comparison.
* use Row to compute separator width in computeRowMetrics; again, the old code is retained for now.
* Get rid of rowWidth()
This fixes a crash in examples/fa/splash.lyx when selecting text
representing menu entries. This happens because menu names are in LTR
English, while the inset itself is in RTL.
The problem is that the current code relies on the fact that
1. getColumnNearX and checkInsetHit share the same idea about cursor
position.
2. pos and pos + 1 are in general consecutive on screen.
It seems that 1. is wrong here (for reasons I did not try to
understand); the second assumption is definitely false with
bi-directional text. This makes editXY very fragile.
The new code should be more robust in this respect. The logic is:
* if checkInsetHit finds an inset, use its position,
* otherwise, ask getColumnNearX for the cursor position.
Fixes: #9142
If we correct the row where we put the cursor after a PgDn or PgUp command, then we should also adjust the y-coordinate that is used later for checkInsetHit and inset->editXY.
However, this code doesn't function like it should, but that is bug #4382.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@31007 a592a061-630c-0410-9148-cb99ea01b6c8
The row in editXY is corrected when we're scrolling with PgUp and PgDwn to make sure that the row where the cursor is places, is completely in the view.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@29752 a592a061-630c-0410-9148-cb99ea01b6c8
1. When a listing is inserted in a bit of text, the line above the listing is not drawn over the full width like it is done for lines above other insets. This is because InsetListing has a AlignLeft alignment. Now, if you start selecting downwards with the mouse in this empty area, strange selection drawings appear (see attachment).
This is caused by the fact that starting your selection at such a place, causes beg.boundary() to be true in TextMetrics::drawRowSelection(..). This is correct, but this value is true for _all_ selected lines. Now, the selection acts as if it is RTL text. Therefore, just like for end.boundary, this value needs to be reset for every line.
2. Starting your selection in an end margin often causes the selection in this end margin to be painted later. This is because when starting your selection in an end margin, you may have set a (possible empty) selection before really selecting the end margin. The problem is that the checksum (computed later) is the same for this empty selection and for the end margin selection. Therfore, we need a call to cur.setSelection() before evaluating cur.selection().
3. In the following two lines, it is assumed that there is only an end margin to be painted if the selection extends to the next paragraph. This is not true for the above described case of an AlignLeft Inset. Then, the margin has also be drawn within a paragraph
4. The end and begin margins are only painted when the selection extends into the following or previous paragraph. This difference is not resembled in the checksum if you first select a row completely and then procede to the next or previous paragraph as the selection remains at the end of a row. This also holds for the AlignLeft case. Therefore I added a term to the checksum to monitor whether the end and begin margins need to be drawn.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@26399 a592a061-630c-0410-9148-cb99ea01b6c8
* completion support for mathed
* experimental completion support for text
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@23104 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
- first() and last(): change return type because std::pair of reference didn't work (i.e. bug)
* BufferView::workAreaDispatch(): re-enable and fix 'mouse hover' feature.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20372 a592a061-630c-0410-9148-cb99ea01b6c8
* BufferView:
- new scroll(), scrollDown() and scrollUp() method for pixel scrolling.
- new LFUN_SCREEN_UP/DOWN handling.
* TextMetrics: new helper and access methods.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20283 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:
- setSelection(): set selection begin and end for this row.
- sel_beg, sel_end: new public members.
* BufferView::draw()
- do not trigger a full repaint for selection.
- use TextMetrics::draw() instead of hand calling TextMetrics::drawParagraph().
* InsetText::draw(): don't call TextMetrics::drawSelection().
* InsetMathMBox::drawSelection(): remove.
* TextMetrics:
- drawSelection(): simplify a bit. Now private.
- redoParagraph(): memorize Row selection status.
- x2pos(): fix crash when selecting with PageDown.
- draw(): fill-in the ParPos cache before everything else and not in drawParagraph().
- drawParagraph(): take care of row selection painting.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20066 a592a061-630c-0410-9148-cb99ea01b6c8
- getFont() becomes TextMetrics::getDisplayFont()
- setCharFont() now needs a display font.
- setInsetFont() and setFont() now needs a BufferView, will be transferred to TextMetrics too.
- isRTL(): moved to TextMetrics
- isRTLBoundary(): ditto
- font_: ditto
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20014 a592a061-630c-0410-9148-cb99ea01b6c8
* BufferView::draw(): makes use of PainterInfo::full_repaint
* TextMetrics::drawParagraph(): ditto.
* InsetText::drawSelection(): don't fillRectangle() if there's no selection.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19918 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
- move RowPainter class out of the anonymous namespace so that it can be used by TextMetrics::drawParagraph().
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19848 a592a061-630c-0410-9148-cb99ea01b6c8
On fullscreen redraw the metrics of all visible paragraphs are
recreated and stored in the TextMetrics object. If the number of
paragraphs on screen does not change everything is fine because the
paragraph metrics cache is just updated. But if the number decreases
it can happen that old paragraph metrics remain in the cache. If this
happened because e.g. a paragraph was deleted, it's possible that the
cached paragraph is longer than the one which is actually at the
position now. Using the Row objects from the cached paragraphs then
can trigger accesses to positions which would have been valid in the
old paragraph, but go over the end of the paragraph which is there
now.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18841 a592a061-630c-0410-9148-cb99ea01b6c8
