2.5: Buttons View

* When resizing the window, the top position is now preserved,
  instead of the center position.
* Fix zoom level not being preserved in various cases, when
  changing both with and height. This replaces some earlier code
  which did this at screen level but wasn't very reliable.
* Different tabs now each preserve their own scroll.
* When switching between tabs, it now scrolls to show as many
  buttons as possible, instead of possibly showing empty space.
  There is a trade-off here between doing that keeping the
  buttons in the same place, no ideal solution exists I think.
* Change zooming in/out to be symmetric, for example doing
  numpad + then - did not give the original zoom level back.
* Added some calls to avoid hanging tooltips when manipulating
  the view.

Internals:
* Added V2D_KEEPOFS_X and V2D_KEEPOFS_Y to keep the top/bottom
  rather than the center.
* Renamed V2D_KEEPZOOM to V2D_LIMITZOOM (seems more appropriate),
  and make V2D_KEEPZOOM preserve the zoom level.

1 files changed, 5 insertions, 0 deletions

diff --git a/source/blender/editors/include/UI_view2d.h b/source/blender/editors/include/UI_view2d.h
index e3fbd906cf6..38c4d82e6da 100644
--- a/source/blender/editors/include/UI_view2d.h
+++ b/source/blender/editors/include/UI_view2d.h
@@ -145,10 +145,15 @@ typedef struct View2DScrollers View2DScrollers;
 void UI_view2d_region_reinit(struct View2D *v2d, short type, int winx, int winy);
 
 void UI_view2d_curRect_validate(struct View2D *v2d);
+void UI_view2d_curRect_validate_resize(struct View2D *v2d, int resize);
 void UI_view2d_curRect_reset(struct View2D *v2d);
 void UI_view2d_sync(struct bScreen *screen, struct ScrArea *sa, struct View2D *v2dcur, int flag);
 
 void UI_view2d_totRect_set(struct View2D *v2d, int width, int height);
+void UI_view2d_totRect_set_resize(struct View2D *v2d, int width, int height, int resize);
+
+/* per tab offsets, returns 1 if tab changed */
+int UI_view2d_tab_set(struct View2D *v2d, int tab);
 
 /* view matrix operations */
 void UI_view2d_view_ortho(const struct bContext *C, struct View2D *v2d);