On Linux the preview widget scaling uses only the integer part of the
scale. This results in a partially non-repainting window that looks
buggy and annoying.
Sub-items would incorrectly calculate as having bounds of {0,0} - {0,0}
because it did not enumerate group sub-items, so group sub-items would
not snap correctly. This fixes group sub-item snapping so that bounds
of group sub-items are calculated, transformed by their group, and added
to the snapping boundary. Bounds of group sub-items will now snap as
though they were normal items.
When a group's transform was scaled down, that scale would not apply to
grabbing the handles of sub-items, so the "handle radius" would
incorrectly be miscalculated (the handle radius calculation for the
sub-item would be scaled down by the parent's scaling, making it too
small to grab). Instead of calculating relative to the current parent,
this fixes the issue by operating in screen space at all times.
Allows the use of alt-cropping on scene items that have bounding box
enabled. The crop will simply apply to the source within the bounding
box rather than try to do anything fancy. A simple solution to an
annoying problem.
(This commit also modifies UI)
Removes obs_scene::group_sceneitem and replaces it with
obs_scene::is_group. Changes a number of other functions related to
groups so that a group is not inherently tied to a specific scene, and
helps allow a single group to be referenced in multiple scenes if
desired.
Adds the ability to zoom into the preview when fixed scaling mode is
enabled.
(Edit by Jim: Also now saves zoom and scroll position)
Closesjp9000/obs-studio#917
Fixes bug 617 on mantis. Scaling the source manually in the viewport
wouldn't work properly when the source is flipped horizontally or
vertically.
Closesjp9000/obs-studio#751
As reboot pointed out, it's assumed that the intention of a locked
preview is to prevent editing the scene. Because scrolling the preview
does not have any interaction with the scene and its sources, you should
be able to still scroll around and look at different parts of your
preview while the preview is locked.
There is also a bugfix included: previously, if you were to
right click while space bar was held down, you would be stuck in
scroll mode until spacebar is pressed/released again. This gets around
it by forcing scroll mode to end when a right click is issued on the
preview.
Adds preview scaling to the right-click context menu for the preview
pane. This allows the ability to, for example, zoom the preview and
edit the preview 1:1 (canvas/base resolution). This was a missing
parity feature. Additionally, also allows scaling to the
"output/scaled" resolution the program is set to.
When the preview is in scale mode and is the focused widget, you can
hold space and drag with left click to change the zoomed position.
(Notes added by Jim)
Closesjp9000/obs-studio#687
