This PR places all LMMS symbols into namespaces to eliminate any potential future name collisions between LMMS and third-party modules.
Also, this PR changes back `LmmsCore` to `Engine`, reverting c519921306 .
Co-authored-by: allejok96 <allejok96@gmail.com>
* Update ringbuffer submodule to fix includes
* Remove cyclic includes
* Remove Qt include prefixes
* Include C++ versions of C headers
E.g.: assert.h -> cassert
* Move CLIP_BORDER_WIDTH into ClipView
This allows to remove includes to TrackView.h in ClipView cpp files.
* Elliminate useless includes
This improves the include structure by elliminating includes that are
not used. Most of this was done by using `include-what-you-use` with
`CMAKE_C_INCLUDE_WHAT_YOU_USE` and `CMAKE_CXX_INCLUDE_WHAT_YOU_USE`
set to (broken down here):
```
include-what-you-use;
-Xiwyu;--mapping_file=/usr/share/include-what-you-use/qt5_11.imp;
-Xiwyu;--keep=*/xmmintrin.h;
-Xiwyu;--keep=*/lmmsconfig.h;
-Xiwyu;--keep=*/weak_libjack.h;
-Xiwyu;--keep=*/sys/*;
-Xiwyu;--keep=*/debug.h;
-Xiwyu;--keep=*/SDL/*;
-Xiwyu;--keep=*/alsa/*;
-Xiwyu;--keep=*/FL/x.h;
-Xiwyu;--keep=*/MidiApple.h;
-Xiwyu;--keep=*/MidiWinMM.h;
-Xiwyu;--keep=*/AudioSoundIo.h
```
* Fixup: Remove empty #if-#ifdef pairs
* Remove LMMS_HAVE_STD(LIB|INT)_H
* redesign of EQ plugin
* correct some symbols
* set pixelPerUnitHeight to float
* change textcolor of inactive handles to white
* revert changes in styles.css
* change grid color/adjust Fontsize of info box / change analizing color
* range changed (20 - 20000 Hz) / display width increased
* Update the EQ faders and remove unused files
* Increase transparency of the graph
* corrects the filter fader peak
* makes fader peak display more useful
* Implement @zapashcanon's suggestions
* calcuculate curve path only when data has changed
* calculate spectrum analyzer only if signal input
* code clean up / coding conventions
* changes according coding guidelines/performance improvements in spectrum analyser/curves painting
* minor changes/white spaces
* change init order
* connect analyze view to gui->mainWindow()->periodicUpdate()
* consolidate some functions (d.r.y.)
* minor syntax changes
* fixes a right mouse button bug
* correct steepness of flanks in high and low pass filters
* Whitespaces
