Outliner: Synced selection and active element highlighting

Adds a toggle to the filter menu for outliner synced selection. Enabled
by default, this ensures selection is synced between objects, bones, and
sequences. An active outliner element theme color is added to indicate
which element is active.

Synced selection is controlled on the operator level. Each operator
that modifies selection for objects, bones, sequences, or outliner
elements needs to call the respective ED_outliner_select_sync_from..
function to tag outliners to be synced.

Syncing is done lazily on outliner draw.

1 files changed, 23 insertions, 0 deletions

diff --git a/source/blender/editors/space_sequencer/sequencer_select.c b/source/blender/editors/space_sequencer/sequencer_select.c
index 57f86059d9d..affb6d3fd88 100644
--- a/source/blender/editors/space_sequencer/sequencer_select.c
+++ b/source/blender/editors/space_sequencer/sequencer_select.c
@@ -41,6 +41,7 @@
 
 /* for menu/popup icons etc etc*/
 
+#include "ED_outliner.h"
 #include "ED_screen.h"
 #include "ED_sequencer.h"
 #include "ED_select_utils.h"
@@ -49,6 +50,7 @@
 
 /* own include */
 #include "sequencer_intern.h"
+
 static void *find_nearest_marker(int UNUSED(d1), int UNUSED(d2))
 {
   return NULL;
@@ -254,6 +256,8 @@ static int sequencer_de_select_all_exec(bContext *C, wmOperator *op)
     }
   }
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   return OPERATOR_FINISHED;
@@ -293,6 +297,8 @@ static int sequencer_select_inverse_exec(bContext *C, wmOperator *UNUSED(op))
     }
   }
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   return OPERATOR_FINISHED;
@@ -542,6 +548,8 @@ static int sequencer_select_invoke(bContext *C, wmOperator *op, const wmEvent *e
     }
   }
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   /* allowing tweaks */
@@ -668,6 +676,8 @@ static int sequencer_select_more_exec(bContext *C, wmOperator *UNUSED(op))
     return OPERATOR_CANCELLED;
   }
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   return OPERATOR_FINISHED;
@@ -699,6 +709,8 @@ static int sequencer_select_less_exec(bContext *C, wmOperator *UNUSED(op))
     return OPERATOR_CANCELLED;
   }
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   return OPERATOR_FINISHED;
@@ -750,6 +762,8 @@ static int sequencer_select_linked_pick_invoke(bContext *C, wmOperator *op, cons
     selected = select_more_less_seq__internal(scene, 1, 1);
   }
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   return OPERATOR_FINISHED;
@@ -784,6 +798,8 @@ static int sequencer_select_linked_exec(bContext *C, wmOperator *UNUSED(op))
     selected = select_more_less_seq__internal(scene, true, true);
   }
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   return OPERATOR_FINISHED;
@@ -832,6 +848,8 @@ static int sequencer_select_handles_exec(bContext *C, wmOperator *op)
     }
   }
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   return OPERATOR_FINISHED;
@@ -876,6 +894,8 @@ static int sequencer_select_active_side_exec(bContext *C, wmOperator *op)
   select_active_side(
       ed->seqbasep, RNA_enum_get(op->ptr, "side"), seq_act->machine, seq_act->startdisp);
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   return OPERATOR_FINISHED;
@@ -934,6 +954,8 @@ static int sequencer_box_select_exec(bContext *C, wmOperator *op)
     }
   }
 
+  ED_outliner_select_sync_from_sequence_tag(C);
+
   WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
 
   return OPERATOR_FINISHED;
@@ -1311,6 +1333,7 @@ static int sequencer_select_grouped_exec(bContext *C, wmOperator *op)
   }
 
   if (changed) {
+    ED_outliner_select_sync_from_sequence_tag(C);
     WM_event_add_notifier(C, NC_SCENE | ND_SEQUENCER | NA_SELECTED, scene);
     return OPERATOR_FINISHED;
   }