GPencil: Invert Filled area pressing Ctrl key

This feature was suggested in https://blender.community/c/rightclickselect/rggbbc/

When press `Ctrl+LMB`, the filled area is inverted.

{F8749306}

{F8749307}

Filling several areas:

{F8759399}

Differential Revision: https://developer.blender.org/D8477

1 files changed, 12 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_brush.c b/source/blender/makesrna/intern/rna_brush.c
index 11b563dae52..ca90483926f 100644
--- a/source/blender/makesrna/intern/rna_brush.c
+++ b/source/blender/makesrna/intern/rna_brush.c
@@ -252,6 +252,12 @@ static EnumPropertyItem rna_enum_gpencil_fill_layers_modes_items[] = {
     {GP_FILL_GPLMODE_ALL_BELOW, "ALL_BELOW", 0, "All Below", "All layers below active"},
     {0, NULL, 0, NULL, NULL}};
 
+static EnumPropertyItem rna_enum_gpencil_fill_direction_items[] = {
+    {0, "NORMAL", ICON_ADD, "Normal", "Fill internal area"},
+    {BRUSH_DIR_IN, "INVERT", ICON_REMOVE, "Inverted", "Fill inverted area"},
+    {0, NULL, 0, NULL, NULL},
+};
+
 static EnumPropertyItem rna_enum_gpencil_brush_modes_items[] = {
     {GP_BRUSH_MODE_ACTIVE, "ACTIVE", 0, "Active", "Use current mode"},
     {GP_BRUSH_MODE_MATERIAL, "MATERIAL", 0, "Material", "Use always material mode"},
@@ -1661,6 +1667,12 @@ static void rna_def_gpencil_options(BlenderRNA *brna)
   RNA_def_property_ui_text(prop, "Layer Mode", "Layers used as boundaries");
   RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
 
+  prop = RNA_def_property(srna, "fill_direction", PROP_ENUM, PROP_NONE);
+  RNA_def_property_enum_sdna(prop, NULL, "fill_direction");
+  RNA_def_property_enum_items(prop, rna_enum_gpencil_fill_direction_items);
+  RNA_def_property_ui_text(prop, "Direction", "Direction of the fill");
+  RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
+
   prop = RNA_def_property(srna, "brush_draw_mode", PROP_ENUM, PROP_NONE);
   RNA_def_property_enum_sdna(prop, NULL, "brush_draw_mode");
   RNA_def_property_enum_items(prop, rna_enum_gpencil_brush_modes_items);