Allows the ability to group scene items. Groups internally are
sub-scenes, which allows the ability to add unique filters and
transforms to each group.
Fixes a bug where items that had cropping would recalculate transform
every frame. obs_scene_item::last_width and obs_scene_item::last_height
would be set to the cropped sizes rather than the source's actual size.
Adds a simple signal reference counting function
(signal_handler_connect_ref) that makes it so that signals keep the
handler around until the all the signal itself is disconnected. This
prevents potential crashes where a signal might try to disconnect after
a handler has already been destroyed (typically in C++ with
OBSSignalHandler helper objects, where destruction isn't guaranteed to
be predictable).
This also modifies OBSSignalHandler to use the reference-counting
connections.
We're expecting a variable with double precision. Since we don't read
the value of these doubles with a particular precision, it can often
lead to unpredictable results where the value set isn't the one
intended due to the loss of precision from float->double conversion.
Originally wanted to do a separate color swatch, but was stymied by the
single widget reference in WidgetInfo. Using QPalette values achives
basic white/black text for contrast, though it is still possible to
select a color with poor contrast.
The variable name changes were done with the intent to ease the
abstraction of the scene, preview and program width/height size
so its not related with the canvas size but directly related with
our concept of scenes.
The variable name changes were done with the intent to ease the
abstraction of the scene, preview and program width/height size
so its not related with the canvas size but directly related with
our concept of scenes.
This ensures the pixel correctness of the sources selection highlight
boxes when on a fullscreen projector.
When on a windowed projector due to the nature of int<->float
conversions and also due to the limited space, some source boxes
might be like 'off-by-one' and barely noticeable.
When not in studio mode the preview and program sources are the same
but the checks will be made against GetCurrentSceneSource which were
resulting in the multiview source highlight to give the previewColor
where in this case we want the programColor.
