[QScintilla] Selected text is removed on right-click in scintilla-qt5 but not qt4

[Phil Thompson]

On 17 Nov 2017, at 11:04 am, F32 <feng32 at 163.com> wrote:
> 
> Hi,
> 
> I'm working on qscintilla these days, replacing the default text-edit widget for better user experience.
> 
> My operation system is:
>   - Linux Mint 17.3 Rosa 64-bit (based on Ubuntu 14.04)
>   - Linux 3.19.0-32-generic x86_64
>   - MATE 1.12.0
>   - gtk 3.10.8
> 
> At first the project is built with the latest qt5 toolchain (5.9.2) downloaded from qt.io, however, I found that when some text is selected and I right-click inside the edit area, the selection would be removed (it is not cut into the clipborad).
> 
> Then, I installed the qt4 development files (4.8.5) from the ubuntu repo, and compiled with qmake-qt4 again, this behavior disappears and everything works fine.
> 
> I googled for half an hour but was unable to find similar reports.
> 
> Is this a compability issue of scintilla or qt5? Does anyone know how to fix it in qt5?

If you right-click then you should get the context menu containing the usual Cut/Copy/Paste etc. options.

Phil