Remove all trace of Qt4 support. The different elements have been
considered carefully before removal.
The only changes that need to be done concern Windows and macOS
compilation instruction and will need to be taken care of by the
respective maintainers before prerelease.
The file TODO.killqt4 lists what remains to be done.
An export can be canceled by clicking on the status bar icon or by
executing export-cancel (e.g., via Document > Cancel Background
Process).
The centralized code kills the script and updates the status bar
icons.
No change in functionality intended.
Related commits: 70a71a82 and 01abab9a.
This is consistent with 70a71a82 (which is about the code path
through clicking on the 'x' status bar icon).
In the next commit I'll make a function to centralize this sequence
of killing a script and emitting the scriptKilled() signal.
Qt4 code has been identidifed by
git grep -l 'QT_VERSION.*\(0x050000\|0x04\)' src
Uses of QT_VERSION_CHECK have been checked too.
been used to remember what places need further work.
Then remaining Qt4 references have been searched using
git grep -i qt4
git grep -i 'qt 4'
and relevant issues have been either fixed or noted in the new
TODO.killqt4 file.
- Check the state of the synchronize TeX output option of the document to enable or disable the LFUN for forward-search.
- write synctex macro to TeX source not only for PdfLaTeX
Introduce the new FileName method ensureExtension, which does the following:
* if the extension is already correct (in a case-insensitive way), do nothing.
* if it is not correct, add the extension to the file name.
This is different from changeExtension that will fail in a case where
the file contains dots, but not a real extension, like newfile2.1.
Use this new method in renameBuffer() and exportBufferAs().
Fixes bug #11008.
This important part is the last point, the rest is what is needed to
make it happen.
* implement (FindAndReplace|FindAndReplaceWidget)::hasWorkArea, that
tell whether a work area is own by the advanced find & replace
widget.
* factor out method find() from GuiView::findOrBuild.
* implement GuiView::hasVisibleWorkArea, that tells whether a workarea
is visible in the view (current tab in a split or adv. f&r
workarea).
* Finally, in TocWidget::sendDispatch, change the current workarea
temporarily to the document workarea before dispatching the
function. The code tries to be as careful as possible to handle all
cases. The future will tell whether it is good enough.
The minimal vamue is set to 10%, let's set the max to 1000%. This
avoids crashes when characters are too large.
The code is refactored to be more compact and the tests are more precise.
Fixes bug #12452.
