Sequencer: 2D cursor for the preview & transform

- Use 2D cursor in the preview space using shortcuts
  matching the UV editor and 3D view.
- Add Cursor tool, cursor transform.
- Support for cursor and bound-box pivot.
- Add pivot pie menu.

1 files changed, 17 insertions, 0 deletions

diff --git a/source/blender/editors/space_sequencer/space_sequencer.c b/source/blender/editors/space_sequencer/space_sequencer.c
index ad0ceb82709..c1f853270e9 100644
--- a/source/blender/editors/space_sequencer/space_sequencer.c
+++ b/source/blender/editors/space_sequencer/space_sequencer.c
@@ -41,6 +41,8 @@
 #include "BKE_screen.h"
 #include "BKE_sequencer_offscreen.h"
 
+#include "GPU_state.h"
+
 #include "ED_screen.h"
 #include "ED_space_api.h"
 #include "ED_transform.h"
@@ -53,6 +55,7 @@
 
 #include "RNA_access.h"
 
+#include "SEQ_transform.h"
 #include "SEQ_utils.h"
 
 #include "UI_interface.h"
@@ -61,6 +64,9 @@
 
 #include "IMB_imbuf.h"
 
+/* Only for cursor drawing. */
+#include "DRW_engine.h"
+
 /* Own include. */
 #include "sequencer_intern.h"
 
@@ -803,6 +809,17 @@ static void sequencer_preview_region_draw(const bContext *C, ARegion *region)
     }
   }
 
+  {
+    GPU_color_mask(true, true, true, true);
+    GPU_depth_mask(false);
+    GPU_depth_test(GPU_DEPTH_NONE);
+
+    float cursor_pixel[2];
+    SEQ_image_preview_unit_to_px(scene, sseq->cursor, cursor_pixel);
+
+    DRW_draw_cursor_2d_ex(region, cursor_pixel);
+  }
+
   WM_gizmomap_draw(region->gizmo_map, C, WM_GIZMOMAP_DRAWSTEP_2D);
 
   if ((U.uiflag & USER_SHOW_FPS) && ED_screen_animation_no_scrub(wm)) {