VSE: Add color tags to strips

This patch adds color tags to VSE strips, an overlay option to toggle the colors
on and off, a section in the theme settings to define the 9 possible colors and
two ways of changing the color tag through the UI. You can change the color
through the right-click context menu, or in the strip side panel next to the
strip name.

Color tags are defined in user preferences and they can be disabled in overlay
settings.

Reviewed By: campbellbarton, ISS

Differential Revision: https://developer.blender.org/D12405

1 files changed, 34 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_sequencer.c b/source/blender/makesrna/intern/rna_sequencer.c
index 6a03ee03f71..7303f6c920a 100644
--- a/source/blender/makesrna/intern/rna_sequencer.c
+++ b/source/blender/makesrna/intern/rna_sequencer.c
@@ -81,6 +81,20 @@ const EnumPropertyItem rna_enum_sequence_modifier_type_items[] = {
     {0, NULL, 0, NULL, NULL},
 };
 
+const EnumPropertyItem rna_enum_strip_color_items[] = {
+    {SEQUENCE_COLOR_NONE, "NONE", ICON_X, "None", "Assign no color tag to the collection"},
+    {SEQUENCE_COLOR_01, "COLOR_01", ICON_SEQUENCE_COLOR_01, "Color 01", ""},
+    {SEQUENCE_COLOR_02, "COLOR_02", ICON_SEQUENCE_COLOR_02, "Color 02", ""},
+    {SEQUENCE_COLOR_03, "COLOR_03", ICON_SEQUENCE_COLOR_03, "Color 03", ""},
+    {SEQUENCE_COLOR_04, "COLOR_04", ICON_SEQUENCE_COLOR_04, "Color 04", ""},
+    {SEQUENCE_COLOR_05, "COLOR_05", ICON_SEQUENCE_COLOR_05, "Color 05", ""},
+    {SEQUENCE_COLOR_06, "COLOR_06", ICON_SEQUENCE_COLOR_06, "Color 06", ""},
+    {SEQUENCE_COLOR_07, "COLOR_07", ICON_SEQUENCE_COLOR_07, "Color 07", ""},
+    {SEQUENCE_COLOR_08, "COLOR_08", ICON_SEQUENCE_COLOR_08, "Color 08", ""},
+    {SEQUENCE_COLOR_09, "COLOR_09", ICON_SEQUENCE_COLOR_09, "Color 09", ""},
+    {0, NULL, 0, NULL, NULL},
+};
+
 #ifdef RNA_RUNTIME
 
 #  include "BKE_global.h"
@@ -1000,6 +1014,18 @@ static void rna_Sequence_opacity_set(PointerRNA *ptr, float value)
   seq->blend_opacity = value * 100.0f;
 }
 
+static int rna_Sequence_color_tag_get(PointerRNA *ptr)
+{
+  Sequence *seq = (Sequence *)(ptr->data);
+  return seq->color_tag;
+}
+
+static void rna_Sequence_color_tag_set(PointerRNA *ptr, int value)
+{
+  Sequence *seq = (Sequence *)(ptr->data);
+  seq->color_tag = value;
+}
+
 static bool colbalance_seq_cmp_fn(Sequence *seq, void *arg_pt)
 {
   SequenceSearchData *data = arg_pt;
@@ -1938,6 +1964,14 @@ static void rna_def_sequence(BlenderRNA *brna)
   RNA_def_property_update(
       prop, NC_SCENE | ND_SEQUENCER, "rna_Sequence_invalidate_preprocessed_update");
 
+  prop = RNA_def_property(srna, "color_tag", PROP_ENUM, PROP_NONE);
+  RNA_def_property_enum_sdna(prop, NULL, "color_tag");
+  RNA_def_property_enum_funcs(
+      prop, "rna_Sequence_color_tag_get", "rna_Sequence_color_tag_set", NULL);
+  RNA_def_property_enum_items(prop, rna_enum_strip_color_items);
+  RNA_def_property_ui_text(prop, "Strip Color", "Color tag for a strip");
+  RNA_def_property_update(prop, NC_SCENE | ND_SEQUENCER, NULL);
+
   /* modifiers */
   prop = RNA_def_property(srna, "modifiers", PROP_COLLECTION, PROP_NONE);
   RNA_def_property_struct_type(prop, "SequenceModifier");