Reset edge loop data when there are no edge near (it doesn't cut when there's no edge near anyway, so the display was missleading)
Also don't do any display setup when there's nothing to display.
part. This fixes a bug where transform help line drawing would not
work with view clipping and mess up the z-buffer. This avoids the
transform code having to figure out what kind of opengl state is
enabled and disable it temporarily.
Also:
* UI now takes ID self check flag into account so that e.g. it
doesn't offer to the make object it's own parent.
* Mesh loop cuts number of cuts had wrong limits.
* Don't use mesh_get_derived_final in modifier stack, but
ob->derivedFinal instead. Avoids crashes on dependency loops,
and in case there is no loop it should have been created.
With mouse events event->val started as 0/1 for press/release but later the tweak function made LMB and RMB zero value into KM_RELEASE, somehow MMB didnt get used by the tweak function so was left at 0 and the modal keymap function failed when comparing MMB Mouse ups.
now initialize event->val as KM_PRESS/KM_RELEASE
issues like Shift+R (repeat last) not giving capital R in the text
editor. There is also new modal handler list at the window level,
and the API call will always add it to that one now, since modal
handlers were not used in other levels.
The order used to be:
* window modal + keymap
* area modal + keymap
* region modal + keymap
Now it is:
* window modal
* region keymap
* area keymap
* window keymap
Note sure what to do with this one, and personally think
we should avoid using macros for this kind of thing:
V_GROW(edges);
source/blender/editors/mesh/loopcut.c:232: warning: value computed is not used
