Pixel sampler now works with a zoomed/translated image. As usual we
have to flip the y translation as OpenGl stores images upside down.
Need to look at a better way of handling this.
Added a new function that inverts the world transform and applies it to
a point. This allows the gizmo code to work in it's own space and not
need to know is the image has been zoomed or translated.
Original fix was wrong, this sorts it out I think. Delta values had to
be doubled as we're in Clip space (I think) and the matrix
multiplication order had to be swapped around.
Updated one of the signla/slot pairs to be simpler as we no longer need
to pass the zoom percentage back and forth.
If Hand Tool is selected we can now drag with a left click AS WELL AS
middle click. This keeps the view behaviour in line with other widgets
in Olive.
For simplicity it does not use handmovableview.
The translation needs to be scaled relative to the zoom percentage so
we get sensible movement when dragging. Dragging is also disabled when
the image is smaller than the container widget.
Re-orders the initialisation of some variables to stop a compile
warning on Travis.
Had to separate zoom and translate matrices to stop the zoom being
applied to itelf. This also required adding separate get/set functions
for each matrix and a GetcombinedMatrix() funtion.
Added those functions ot other files where needed ut may be wrong. Need
to look at export.cpp
Also changed the mouse move and press events to make translation work.
While the auto-cache will always default to on, there are cases where the
user may not want the viewer to barrel ahead caching something (footage
viewer for instance or if the user is making a lot of changes in a short
amount of time).
The nodes now have more control over how their accelerated shaders/sample
functions are run, as well as how items are popped off the value tables.
This allows for various optimizations that we didn't have access to before.
Removed proxy task and replaced with a true honest-to-god pre-cache for
footage. This footage is pre-cached to a sequence and therefore 100% ready
for use in it once the task is done.
Thomas Wilshaw
itsmattkc