Integrates Sami Boukortt's patch described below:
I have made a patch for the “Save changes?” dialog box to let the user choose
between “Save”, “Discard” and “Cancel” instead of “Yes”, “No” and “Cancel”.
I find this way more intuitive, since it enables Qt to reorganize the buttons
properly according to the platform and to give them an icon (at least on X11).
It also allows users to know what is going to happen without having to read
the question.
(cherry picked from commit f9015ac945)
Users reported the last buffer played repeatedly while the dialog asking
whether to save project is shown. This behaviour even continued while
loading a project. An easy workaround for this is to stop playing song
(or whichever TrackContainer is active at the moment) in
MainWindow::mayChangeProject().
Closes bug #2904781.
(cherry picked from commit 04699ba412)
Rewrote implementation of class SideBar to use QToolBar instead of
KMultiTabBar. We can style the SideBar now easily via CSS and do not
have to ship 3rd party KDE code with LMMS. Also the QToolBar based
SideBar integrates much better into the according widget style.
Furthermore renamed SideBar related classes and files to match new
coding style.
(cherry picked from commit 822a22ca37)
Fix problem with main-window scrollbars not adjusting when toggling
off-screen children. Seems like Qt bug #260116.
(cherry picked from commit 669b4e7198)
Instead of writing QVector<Plugin::Descriptor> everywhere, mix up
iterators etc. centrally define Plugin::DescriptorList and use it
everywhere.
Additionally made pointers to Plugin::Descriptor and
Plugin::Descriptor::SubPluginFeatures::Key const in various places
so we can use ConstIterator everywhere when iterating through
Plugin::DescriptorList.
(cherry picked from commit 2287eca802)
Most files and most of the core classes and their methods have been
renamed to match new coding style conventions:
391 files changed, 25400 insertions(+), 25598 deletions(-)
Furthermore splitted some files where model and view classes were
declared or implemented together in the same file.
Should be tested thoroughly as I might have missed renaming some virtual
methods or SIGNAL/SLOT parameters.
(cherry picked from commit 8c9a9dd14c)
