space works again
This commit restores the support for using Grease Pencil in the Sequence Editor
image preview region, making it possible to scribble on footage for review
purposes again. Due to internal changes in how the Sequencer handles the image
drawing for this stuff (i.e. it is now fully based on View2D instead of trying
to implement its own little crazy offset+zoom stuff), a lot of the old code for
handling those offsets is no longer needed. Instead, one of the "standard" cases
is now used, and works quite well.
Bugfixes:
* View-space Grease Pencil drawing was done in wrong place (before view2d
restore)
* Grease Pencil entry in RNA had wrong/missing type
Credits:
* DingTo - initial patch/attempt at restoring support
* Aligorith - solved the "offset problems"
* Remove some non used *_button_register functions, panels are done in python.
* Remove do_node_region_buttons, was not used anymore.
Fix:
* Only show Grease Pencil panel in the Node editor, when there is a valid nodetree.
Only source/blender/editors/ dir, should not give errors on different platforms
Only removing: UI_*.h, ED_*.h, WM_*.h, DNA_*.h, IMB_*.h, RNA_*.h, PIL_*.h
belongs here still, but this came up often, it avoids having to
switch tabs a lot when creating things.
Also renamed uiLayoutFreeBlock to uiLayoutAbsoluteBlock.
#19345: can't get out of grayed out pointer field.
#19342: item_pointerR fields can't be cleared with one item.
#19341: fix hanging tooltips when manipulating regions.
#19339: context panel still allowed tabbing, but it has no header.
#19334: editing SSS settings crashed previewrender.
#19330: object mode could not be switched on from the header menu.
svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r19820:HEAD
Notes:
* Game and sequencer RNA, and sequencer header are now out of date
a bit after changes in trunk.
* I didn't know how to port these bugfixes, most likely they are
not needed anymore.
* Fix "duplicate strip" always increase the user count for ipo.
* IPO pinning on sequencer strips was lost during Undo.
