View2D - Zoom + More Scrollbar work

* Added basic (non-modal) zoom operators that use a uniform scale factor, with zoom centered using the view center as scaling point. Use Scrollwheel up/down and Pad +/- to use this.

* Added back the 'button'/bubble for the scrollbars. I've added dark lines on either end of it for some later work on zooming widgets.
This is not the final form they'll take. I still need to decide how to handle those scrollbars which act as grid-markers too (showing timescale, etc.), before trying to integrate that with some fancy scrollbar drawing (rounded, etc.)

Assorted changes:
* Moved vertical scrollbar for Outliner to right hand side
* Made Timeline use standard scrollbars, and turned on various clamping options
* Fixed ortho-matrix corrections for scrollbars, and added pixel offsets
* Made Timeline markers sit more snugly on the scrollbar. They were a bit far out...
* Fixed memory leak with view2d keymaps not being freed when Blender exited

1 files changed, 0 insertions, 12 deletions

diff --git a/source/blender/makesdna/DNA_screen_types.h b/source/blender/makesdna/DNA_screen_types.h
index 2f25d96f285..28ec73a00d1 100644
--- a/source/blender/makesdna/DNA_screen_types.h
+++ b/source/blender/makesdna/DNA_screen_types.h
@@ -181,18 +181,6 @@ typedef struct ARegion {
 #define WIN_BACK_OK		2
 #define WIN_EQUAL		3
 
-/* scrollbar flags for View2D */
-	/* left scrollbar */
-#define L_SCROLL 1			
-#define R_SCROLL 2
-#define VERT_SCROLL 3
-#define T_SCROLL 4
-#define B_SCROLL 8
-#define HOR_SCROLL  12
-	/* special hack for outliner hscroll - prevent hanging older versions of Blender */
-#define B_SCROLLO   16
-#define HOR_SCROLLO 20
-
 /* Panel->snap - for snapping to screen edges */
 #define PNL_SNAP_NONE		0
 #define PNL_SNAP_TOP		1