Python 3's signal.py API does not properly support custom signal handlers. An exception is created every frame because of this, which fills up the memory of the application.
Closes#873
This allows identifying, eg. the é button on French keyboard (which is at the location where 2 is on QWERTY)
This is not intended to be complete. One must still choose what to display depending on the label and the mapped button handle (if any).
Classes with virtual ref(), unref() and get_ref_count() methods, like RecorderBase, could not be returned by PT() from methods because they didn't inherit from ReferenceCount. However, classes do not need to inherit ReferenceCount to be able to be tracked by a PointerTo, and defining an abstract base class with pure virtual ref()/unref()/get_ref_count() is a way to avoid dual inheritance of ReferenceCount.
Made initialization ignore the setScrollBarWidth function
Respect the length/height of the scrollbar and only change the actual
width in the setScrollBarWidth function
Added a very basic unittest class for the scrolledFrame
Closes#864
The previous behavior was for unloadAnims() to remove the control effects from all animations, even when only one animation was passed in, which is unintuitive behavior.
Fixes#853
For some reason, IOHIDDeviceRegisterRemovalCallback() no longer works on
10.15+, so an app will crash once trying to poll a device that doesn't
exist anymore. Thankfully, there is the alternative solution of using
IOHIDManagerRegisterDeviceRemovalCallback(). This just required a little
rearranging of the callback code, as well as keeping track of the
connection between IOHIDDeviceRefs and IOKitInputDevices so we actually
know which device to remove.
Closes#847
This results in size savings for thirdparty libraries that are only used once, and a size increase for libraries used more than once (eg. OpenSSL). More importantly, it prevents conflicts with other versions of the libraries loaded by other Python modules, such as the version of OpenSSL that the hmac module uses.
We need to be careful to only apply this for packages that are either used once, used in a plug-in module, or if we don't need to pass thirdparty library structures across Panda library boundaries. For example, I haven't done this for Bullet, since the Bullet symbols need to be available through libpandabullet.so due to the fact that pandabullet contains calls to the Bullet libraries in the inline methods.
Fixes#851
These were probably added before makepanda gained the ability to automatically add dependencies of static libraries when linking statically.
They don't really do any harm--the linker will probably optimize these out automatically--but it's cleaner not to add unused dependencies.
If we don't do this, we get an assertion somewhere in the bowels of the scene graph, which will be much less helpful for tracking down the origin of the NaN.
This could cause a crash when constructing a GraphicsPipe() under some conditions (observed in Python 3.8). Credit goes to @CFSworks for tracking this down.
