This represents the newly entered data for each keystroke. This is often a single added character, but for cases like pasting text it can be more complex.
The PDF API reference doesn't specify any algorithm to use.
The algorithm used here works by iterating through both strings from the start until the first different character is encountered. Then the rest of the new text is considered the difference.
This doesn't produce the theoretically optimal/minimal diff, but seems to work well enough for practical application.
When text is removed the diff is empty
find . \( -name "*.cpp" -or -name "*.h" -or -name "*.c" -or -name "*.cc" \) -exec clang-format -i {} \;
If you reached this file doing a git blame, please see README.clang-format (added 2 commits in the future of this one)
Probably doesn't happen very often since most of the times people don't save while rendering is still happening
but if that is the case we need to wait for all the rendering to finish otherwise we remove the document
from under the render thread feet and bad things happen
Summary:
Only supported by the pdf backend if using poppler >= 0.63
Sadly had to change the generator API
Text cancellation is a bit wobbly still since poppler has large parts
of the code where doesn't check for the cancellation flag, but that
is something that will get automagically fixed for us if the poppler
side is improved
Test Plan: Needs https://bugs.freedesktop.org/show_bug.cgi?id=104263
Reviewers: ervin, rkflx
Reviewed By: ervin, rkflx
Subscribers: #okular
Tags: #okular
Differential Revision: https://phabricator.kde.org/D9328
Summary:
This should prevent crashes when reloading some synctex-enabled pdf
files created with newer versions of TeXLive. We also gain bugfixes,
features and improved accuracy from the last 6 years of synctex
development.
Procedure followed:
- svn co svn://tug.org/texlive/trunk/Build/source/texk/web2c/synctexdir
- Check out revision 45150
- Update files present in core/synctex/*
- Adapt Okular code to changes
- Review and drop or update/apply old patches using quilt
- Create missing patches for local synctex changes
- New patch: Omit warning message when opening non-synctex pdf
- Two new patches to fix more compiler warnings
- New patch: Plug multiple leaks and prevent a segfault
TODO for later:
- Move sync file detection code to Okular to never call into synctex C code for non-synctex files
- Evaluate feasibility of upstreaming all patches for TeXLive 2018 and using synctex as a library
BUG: 383915
FIXED-IN: 17.12.0
Test Plan:
- No crash in synctex on reloading empty.pdf from bugreport anymore.
- Shift-clicking on a word in a simple pdf opens Kate with the corresponding tex line.
- Forward and backward search in Kile seems to work.
- Works with synctex files from both TeXLive 2015 and 2017.
- PartTest::testForwardPDF still passes.
- No additional memory leaks in autotests and with basic synctex and non-synctex usage of Okular.
Reviewers: #okular, sander, #kile, aacid
Reviewed By: #okular, aacid
Subscribers: mludwig, aacid
Tags: #okular
Differential Revision: https://phabricator.kde.org/D7594
Usage:
If you left-click an annotation, it gets selected. Resize handles appear on the selection rectangle. When cursor is moved over one of the 8 resize handles on the corners/edges, the cursor shape changes to indicate resize mode. Everywhere else on the annotation means "move", just as it was before resize feature was added. Pressing ESC or clicking an area outside the annotation cancels a selection. Pressing Del deletes a selected annotation.
Feature is only applicable for annotation types AText, AStamp and AGeom.
Implementation:
It works by eventually changing AnnotationPrivate::m_boundary and notifying generator (i.e. poppler) about that change. Annotation state handling is shifted out of PageView into a new class MouseAnnotation (ui/pageviewmouseannotation.cpp). Some functionality not related to resizing but to annotation interaction in general is also shifted to class MouseAnnotation, to build a single place of responsiblity.
Other changes:
Add method Document::adjustPageAnnotation, backed by a QUndoCommand.
class Okular::AdjustAnnotationCommand.
Add Annotation::adjust and Annotation::canBeResized methods.
Draw resize handles in PagePainter::paintCroppedPageOnPainter.
Resize and move work
-for types AText, AStamp and AGeom
-on all pages of document
-when viewport position changes
-when zoom level changes
-for all page rotations (0°, 90°, 180°, 270°)
Selection is canceled
-when currently selected annotation is deleted
-on mouse click outside of currently selected annotation
-ESC is pressed
Viewport is shifted when mouse cursor during move/resize comes close to viewport border.
Resize to negative is prevented.
Tiny annotations are still selectable.
If mouse is moved over an annotation type that we can focus, and the annotation is not yet focused, mouse cursor shape changes to arrow.
If mouse cursor rests over an annotation A, while annotation B is focused, a tooltip for annotation A is shown.
Selected Annotation is deleted when Del is pressed.
Test for regressions:
-Annotation interaction (focus, move, resize, start playback, ...) are only done in mode EnumMouseMode::Browse.
-If mouse is moved over an annotation type where we can start an action, mouse cursor shape changes to pointing hand.
-If mouse is moved over an annotation type that we can't interact with, mouse cursor shape stays a open hand.
-If mouse cursor rests over an annotation of any type, a tooltip for that annotation is shown.
-Grab/move scroll area (on left click + mouse move) is prevented, if mouse is over focused annotation, or over AMovie/AScreen/AFileAttachment annotation.
-A double click on a annotation starts the "annotator".
REVIEW: 127366
BUG: 177778
BUG: 314843
BUG: 358060
Somehow i ended up commiting a partial patch and not what was in reviewboard, this amends the previous commit to be what i really wanted to commit
Sorry for the mess :/
This way dvi and any other potential user gets it for free
The diff is huge, but the synctex files are just moves.
And the code in core/ is also mostly just a move from the generator_pdf.cpp code
Acked by Luigi
REVIEW: 120311
Use a QString to serialize the command line options other than urls to open so it can be easily passed around to every place that opens a new shell or tab or overrides the content in a unique instance.
BUGS: 334100
FIXED-IN: 4.14.0
REVIEW: 119595
