scripts-blender/addons/brushstroke_tools/ops.py

@@ -46,6 +46,8 @@ class BSBST_OT_new_brushstrokes(bpy.types.Operator):
 
         # attach surface object pointer
         brushstrokes_object['BSBST_surface_object'] = surface_object
+        brushstrokes_object['BSBST_active'] = True
+        brushstrokes_object['BSBST_method'] = settings.brushstroke_method
 
         if surface_object:
             surface_object.add_rest_position_attribute = True # TODO report if library data

scripts-blender/addons/brushstroke_tools/settings.py

@@ -1,4 +1,39 @@
 import bpy
+from bpy.app.handlers import persistent
+
+@persistent
+def find_context_brushstrokes(dummy):
+    context = bpy.context
+    settings = context.scene.BSBST_settings
+    # identify context brushstrokes
+    for el in range(len(settings.context_brushstrokes)):
+        settings.context_brushstrokes.remove(0)
+    context_object = context.object
+    if 'BSBST_surface_object' in context_object.keys():
+        ob = context_object['BSBST_surface_object']
+        if ob:
+            context_object = ob
+    for ob in bpy.data.objects:
+        if not ('BSBST_surface_object' in ob.keys()):
+            continue
+        if not ob['BSBST_surface_object']:
+            continue
+        if not ob['BSBST_surface_object'] == context_object:
+            continue
+        bs = settings.context_brushstrokes.add()
+        bs.name = ob.name
+        bs.method = ob['BSBST_method']
+    settings.active_context_brushstrokes_index = max(min(settings.active_context_brushstrokes_index, len(settings.context_brushstrokes)-1), 0)
+    return
+
+def update_active_brushstrokes(self, context):
+    settings = context.scene.BSBST_settings
+    for i, el in enumerate(settings.context_brushstrokes):
+        ob = bpy.data.objects.get(el.name)
+        if not ob:
+            continue
+        ob['BSBST_active'] = i == settings.active_context_brushstrokes_index
+    return
 
 def update_brushstroke_method(self, context):
     settings = context.scene.BSBST_settings
@@ -14,6 +49,10 @@ class BSBST_socket_info(bpy.types.PropertyGroup):
     name: bpy.props.StringProperty(default='')
     socket_info: bpy.props.CollectionProperty(type=BSBST_link_context_setting)
 
+class BSBST_context_brushstrokes(bpy.types.PropertyGroup):
+    name: bpy.props.StringProperty(default='')
+    method: bpy.props.StringProperty(default='')
+
 class BSBST_Settings(bpy.types.PropertyGroup):
     attach_to_active_selection: bpy.props.BoolProperty(default=True)
     preset_object: bpy.props.PointerProperty(type=bpy.types.Object, name="Preset Object")
@@ -42,11 +81,13 @@ class BSBST_Settings(bpy.types.PropertyGroup):
                                                [('CURVE', 'Legacy', 'Use legacy curve type (Limited Support)', 'CURVE_DATA', 0),\
                                                ('CURVES', 'Curves', 'Use hair curves (Full Support)', 'CURVES_DATA', 1),
                                                ])
-    #preset_mode
+    context_brushstrokes: bpy.props.CollectionProperty(type=BSBST_context_brushstrokes)
+    active_context_brushstrokes_index: bpy.props.IntProperty(default = 0, update=update_active_brushstrokes)
 
 classes = [
     BSBST_link_context_setting,
     BSBST_socket_info,
+    BSBST_context_brushstrokes,
     BSBST_Settings,
 ]
 
@@ -56,6 +97,8 @@ def register():
     bpy.types.Scene.BSBST_settings = bpy.props.PointerProperty(type=BSBST_Settings)
     bpy.types.Object.modifier_info = bpy.props.CollectionProperty(type=BSBST_socket_info)
 
+    bpy.app.handlers.depsgraph_update_post.append(find_context_brushstrokes)
+
 def unregister():
     for c in classes:
         bpy.utils.unregister_class(c)

scripts-blender/addons/brushstroke_tools/ui.py

@@ -53,6 +53,26 @@ def draw_panel_ui_recursive(panel, panel_name, mod, items):
                 row.prop(s, 'link_context', text='', icon=icon)
     return
 
+class BSBST_UL_brushstroke_objects(bpy.types.UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        settings = data
+        context_brushstroke = item
+        if self.layout_type in {'DEFAULT', 'COMPACT'}:
+            if context_brushstroke:
+                method_icon = 'BRUSH_DATA'
+                if context_brushstroke.method == 'SURFACE_FILL':
+                    method_icon = 'OUTLINER_OB_FORCE_FIELD'
+                elif context_brushstroke.method == 'SURFACE_DRAW':
+                    method_icon = 'OUTLINER_DATA_GP_LAYER'
+                layout.label(text=context_brushstroke.name, icon=method_icon)
+            else:
+                layout.label(text="", translate=False, icon_value=icon)
+        elif self.layout_type == 'GRID':
+            layout.label(text="", icon_value=icon)
+
+    def draw_filter(self, context, layout):
+        return
+
 class BSBST_PT_brushstroke_tools_panel(bpy.types.Panel):
     bl_space_type = 'VIEW_3D'
     bl_region_type = 'UI'
@@ -88,10 +108,17 @@ class BSBST_PT_brushstroke_tools_panel(bpy.types.Panel):
 
         # identify style context
         style_object = context.object if settings.style_context=='BRUSHSTROKES' else settings.preset_object
-
-        if context.object and settings.style_context=='AUTO':
-            if 'BSBST_surface_object' in context.object.keys():
+        if settings.style_context=='PRESET':
+            style_object = settings.preset_object
+        else:
+            if 'BSBST_active' in context.object.keys():
                 style_object = context.object
+            else:
+                if settings.context_brushstrokes:
+                    bs_name = settings.context_brushstrokes[settings.active_context_brushstrokes_index].name
+                    context_bs = bpy.data.objects.get(bs_name)
+                    if context_bs:
+                        style_object = context_bs
 
         is_preset = style_object == settings.preset_object
 
@@ -105,6 +132,12 @@ class BSBST_PT_brushstroke_tools_panel(bpy.types.Panel):
         style_header.row().prop(settings, 'style_context', icon_only=True, expand=True)
 
         if style_panel:
+            if settings.style_context=='BRUSHSTROKES' and not 'BSBST_active' in style_object.keys():
+                style_panel.label(text='No Brushstroke Context Found', icon='ERROR')
+                return
+            if not is_preset and len(settings.context_brushstrokes)>0:
+                style_panel.template_list("BSBST_UL_brushstroke_objects", "", settings, "context_brushstrokes",
+                             settings, "active_context_brushstrokes_index", rows=1, maxrows=5, sort_lock=True)
             style_panel.prop(settings, 'preset_material', icon='MATERIAL')
             if not settings.preset_object:
                 style_panel.operator("brushstroke_tools.init_preset", icon='MODIFIER')
@@ -143,6 +176,7 @@ class BSBST_PT_brushstroke_tools_panel(bpy.types.Panel):
         return
 
 classes = [
+    BSBST_UL_brushstroke_objects,
     BSBST_PT_brushstroke_tools_panel,
 ]