text: # ##### BEGIN GPL LICENSE BLOCK #####
  #
  #  This program is free software; you can redistribute it and/or
  #  modify it under the terms of the GNU General Public License
  #  as published by the Free Software Foundation; either version 2
  #  of the License, or (at your option) any later version.
  #
  #  This program is distributed in the hope that it will be useful,
  #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  #  GNU General Public License for more details.
  #
  #  You should have received a copy of the GNU General Public License
  #  along with this program; if not, write to the Free Software Foundation,
  #  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  #
  # ##### END GPL LICENSE BLOCK #####
  
  # <pep8 compliant>
  from bpy.types import Menu, Panel, UIList
  from .properties_grease_pencil_common import (
      GreasePencilStrokeEditPanel,
      GreasePencilStrokeSculptPanel,
      GreasePencilSculptOptionsPanel,
      GreasePencilAppearancePanel,
  )
  from .properties_paint_common import (
      UnifiedPaintPanel,
      brush_mask_texture_settings,
      brush_texpaint_common,
      brush_texpaint_common_color,
      brush_texpaint_common_gradient,
      brush_texpaint_common_clone,
      brush_texpaint_common_options,
      brush_texture_settings,
  )
  from bl_ui.utils import PresetPanel
  
  
  class View3DPanel:
      bl_space_type = 'PROPERTIES'
      bl_region_type = 'WINDOW'
  
  
  # **************** standard tool clusters ******************
  
  # Used by vertex & weight paint
  def draw_vpaint_symmetry(layout, vpaint):
  
      split = layout.split()
  
      col = split.column()
      col.alignment = 'RIGHT'
      col.label(text="Mirror")
  
      col = split.column()
      row = col.row(align=True)
      row.prop(vpaint, "use_symmetry_x", text="X", toggle=True)
      row.prop(vpaint, "use_symmetry_y", text="Y", toggle=True)
      row.prop(vpaint, "use_symmetry_z", text="Z", toggle=True)
  
      col = layout.column()
      col.use_property_split = True
      col.use_property_decorate = False
      col.prop(vpaint, "radial_symmetry", text="Radial")
  
  # Most of these panels should not be visible in GP edit modes
  
  
  def is_not_gpencil_edit_mode(context):
      is_gpmode = (
          context.active_object and
          context.active_object.mode in {'EDIT_GPENCIL', 'PAINT_GPENCIL', 'SCULPT_GPENCIL', 'WEIGHT_GPENCIL'}
      )
      return not is_gpmode
  
  
  # ********** default tools for editmode_mesh ****************
  
  
  class VIEW3D_PT_tools_meshedit_options(View3DPanel, Panel):
      bl_category = "Options"
      bl_context = ".mesh_edit"  # dot on purpose (access from topbar)
      bl_label = "Options"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          return context.active_object
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          ob = context.active_object
  
          tool_settings = context.tool_settings
          mesh = ob.data
  
          col = layout.column(align=True)
          col.prop(mesh, "use_mirror_x")
  
          row = col.row(align=True)
          row.active = ob.data.use_mirror_x
          row.prop(mesh, "use_mirror_topology")
  
          layout.prop(tool_settings, "use_edge_path_live_unwrap")
          layout.prop(tool_settings, "use_mesh_automerge")
  
          layout.prop(tool_settings, "double_threshold")
          layout.prop(tool_settings, "edge_path_mode")
  
  # ********** default tools for editmode_curve ****************
  
  
  class VIEW3D_PT_tools_curveedit_options_stroke(View3DPanel, Panel):
      bl_category = "Options"
      bl_context = ".curve_edit"  # dot on purpose (access from topbar)
      bl_label = "Curve Stroke"
  
      def draw(self, context):
          layout = self.layout
  
          tool_settings = context.tool_settings
          cps = tool_settings.curve_paint_settings
  
          col = layout.column()
  
          col.prop(cps, "curve_type")
  
          if cps.curve_type == 'BEZIER':
              col.label(text="Bezier Options:")
              col.prop(cps, "error_threshold")
              col.prop(cps, "fit_method")
              col.prop(cps, "use_corners_detect")
  
              col = layout.column()
              col.active = cps.use_corners_detect
              col.prop(cps, "corner_angle")
  
          col.label(text="Pressure Radius:")
          row = layout.row(align=True)
          rowsub = row.row(align=True)
          rowsub.prop(cps, "radius_min", text="Min")
          rowsub.prop(cps, "radius_max", text="Max")
  
          row.prop(cps, "use_pressure_radius", text="", icon_only=True)
  
          col = layout.column()
          col.label(text="Taper Radius:")
          row = layout.row(align=True)
          row.prop(cps, "radius_taper_start", text="Start")
          row.prop(cps, "radius_taper_end", text="End")
  
          col = layout.column()
          col.label(text="Projection Depth:")
          row = layout.row(align=True)
          row.prop(cps, "depth_mode", expand=True)
  
          col = layout.column()
          if cps.depth_mode == 'SURFACE':
              col.prop(cps, "surface_offset")
              col.prop(cps, "use_offset_absolute")
              col.prop(cps, "use_stroke_endpoints")
              if cps.use_stroke_endpoints:
                  colsub = layout.column(align=True)
                  colsub.prop(cps, "surface_plane", expand=True)
  
  
  # ********** default tools for editmode_armature ****************
  
  
  class VIEW3D_PT_tools_armatureedit_options(View3DPanel, Panel):
      bl_category = "Options"
      bl_context = ".armature_edit"  # dot on purpose (access from topbar)
      bl_label = "Armature Options"
  
      def draw(self, context):
          arm = context.active_object.data
  
          self.layout.prop(arm, "use_mirror_x")
  
  
  # ********** default tools for pose-mode ****************
  
  class VIEW3D_PT_tools_posemode_options(View3DPanel, Panel):
      bl_category = "Options"
      bl_context = ".posemode"  # dot on purpose (access from topbar)
      bl_label = "Pose Options"
  
      def draw(self, context):
          arm = context.active_object.data
  
          self.layout.prop(arm, "use_auto_ik")
          self.layout.prop(arm, "use_mirror_x")
  
  # ********** default tools for paint modes ****************
  
  
  class View3DPaintPanel(UnifiedPaintPanel):
      bl_space_type = 'PROPERTIES'
      bl_region_type = 'WINDOW'
  
  
  class VIEW3D_PT_tools_particlemode(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_label = "Particle tools"
      bl_options = {'HIDE_HEADER'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          return (settings and settings.brush and context.particle_edit_object)
  
      def draw(self, context):
          layout = self.layout
  
          settings = self.paint_settings(context)
          brush = settings.brush
          tool = settings.tool
  
          layout.use_property_split = True
          layout.use_property_decorate = False  # No animation.
  
          if tool is not None:
              col = layout.column()
              col.prop(brush, "size", slider=True)
              if tool == 'ADD':
                  col.prop(brush, "count")
  
                  col = layout.column()
                  col.prop(settings, "use_default_interpolate")
                  col.prop(brush, "steps", slider=True)
                  col.prop(settings, "default_key_count", slider=True)
              else:
                  col.prop(brush, "strength", slider=True)
  
                  if tool == 'LENGTH':
                      layout.row().prop(brush, "length_mode", expand=True)
                  elif tool == 'PUFF':
                      layout.row().prop(brush, "puff_mode", expand=True)
                      layout.prop(brush, "use_puff_volume")
                  elif tool == 'COMB':
                      layout.prop(settings, "use_emitter_deflect", text="Deflect Emitter")
                      col = layout.column()
                      col.active = settings.use_emitter_deflect
                      col.prop(settings, "emitter_distance", text="Distance")
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_brush(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_label = "Brush"
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          return (settings and
                  settings.brush and
                  (context.sculpt_object or
                   context.vertex_paint_object or
                   context.weight_paint_object or
                   context.image_paint_object))
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False  # No animation.
  
          settings = self.paint_settings(context)
          brush = settings.brush
  
          if not self.is_popover:
              col = layout.split().column()
              col.template_ID_preview(settings, "brush", new="brush.add", rows=3, cols=8)
  
          # Sculpt Mode #
          if context.sculpt_object and brush:
              from .properties_paint_common import (
                  brush_basic_sculpt_settings,
              )
  
              capabilities = brush.sculpt_capabilities
  
              col = layout.column()
  
              if not self.is_popover:
                  brush_basic_sculpt_settings(col, context, brush)
  
              # topology_rake_factor
              if (
                      capabilities.has_topology_rake and
                      context.sculpt_object.use_dynamic_topology_sculpting
              ):
                  row = col.row()
                  row.prop(brush, "topology_rake_factor", slider=True)
  
              # auto_smooth_factor and use_inverse_smooth_pressure
              if capabilities.has_auto_smooth:
                  row = col.row(align=True)
                  row.prop(brush, "auto_smooth_factor", slider=True)
                  row.prop(brush, "use_inverse_smooth_pressure", toggle=True, text="")
  
              # normal_weight
              if capabilities.has_normal_weight:
                  row = col.row(align=True)
                  row.prop(brush, "normal_weight", slider=True)
  
              # crease_pinch_factor
              if capabilities.has_pinch_factor:
                  row = col.row(align=True)
                  row.prop(brush, "crease_pinch_factor", slider=True, text="Pinch")
  
              # rake_factor
              if capabilities.has_rake_factor:
                  row = col.row(align=True)
                  row.prop(brush, "rake_factor", slider=True)
  
              if brush.sculpt_tool == 'MASK':
                  col.prop(brush, "mask_tool")
  
              # plane_offset, use_offset_pressure, use_plane_trim, plane_trim
              if capabilities.has_plane_offset:
                  row = col.row(align=True)
                  row.prop(brush, "plane_offset", slider=True)
                  row.prop(brush, "use_offset_pressure", text="")
  
                  col.separator()
  
                  row = col.row()
                  row.prop(brush, "use_plane_trim", text="Plane Trim")
                  row = col.row()
                  row.active = brush.use_plane_trim
                  row.prop(brush, "plane_trim", slider=True, text="Distance")
  
              # height
              if capabilities.has_height:
                  row = col.row()
                  row.prop(brush, "height", slider=True, text="Height")
  
              # use_persistent, set_persistent_base
              if capabilities.has_persistence:
                  ob = context.sculpt_object
                  do_persistent = True
  
                  # not supported yet for this case
                  for md in ob.modifiers:
                      if md.type == 'MULTIRES':
                          do_persistent = False
                          break
  
                  if do_persistent:
                      col.prop(brush, "use_persistent")
                      col.operator("sculpt.set_persistent_base")
  
          # Texture Paint Mode #
  
          elif context.image_paint_object and brush:
              brush_texpaint_common(self, context, layout, brush, settings, True)
  
          # Weight Paint Mode #
          elif context.weight_paint_object and brush:
              from .properties_paint_common import (
                  brush_basic_wpaint_settings,
              )
  
              col = layout.column()
  
              if not self.is_popover:
                  brush_basic_wpaint_settings(col, context, brush)
  
          # Vertex Paint Mode #
          elif context.vertex_paint_object and brush:
              from .properties_paint_common import (
                  brush_basic_vpaint_settings,
              )
  
              if not self.is_popover:
                  brush_basic_vpaint_settings(col, context, brush)
  
  
  class VIEW3D_PT_tools_brush_color(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_parent_id = "VIEW3D_PT_tools_brush"
      bl_label = "Color Picker"
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          brush = settings.brush
          if context.image_paint_object:
              capabilities = brush.image_paint_capabilities
              return capabilities.has_color
  
          elif context.vertex_paint_object:
              capabilities = brush.vertex_paint_capabilities
              return capabilities.has_color
  
      def draw(self, context):
          layout = self.layout
          settings = self.paint_settings(context)
          brush = settings.brush
  
          layout.active = not brush.use_gradient
  
          brush_texpaint_common_color(self, context, layout, brush, settings, True)
  
  
  class VIEW3D_PT_tools_brush_swatches(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_parent_id = "VIEW3D_PT_tools_brush"
      bl_label = "Color Palette"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          brush = settings.brush
          if context.image_paint_object:
              capabilities = brush.image_paint_capabilities
              return capabilities.has_color
  
          elif context.vertex_paint_object:
              capabilities = brush.vertex_paint_capabilities
              return capabilities.has_color
  
      def draw(self, context):
          layout = self.layout
          settings = self.paint_settings(context)
  
          layout.template_ID(settings, "palette", new="palette.new")
          if settings.palette:
              layout.template_palette(settings, "palette", color=True)
  
  
  class VIEW3D_PT_tools_brush_gradient(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_parent_id = "VIEW3D_PT_tools_brush"
      bl_label = "Gradient"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          brush = settings.brush
          capabilities = brush.image_paint_capabilities
  
          return capabilities.has_color and context.image_paint_object
  
      def draw_header(self, context):
          settings = self.paint_settings(context)
          brush = settings.brush
          self.layout.prop(brush, "use_gradient", text="")
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = False
          layout.use_property_decorate = False  # No animation.
          settings = self.paint_settings(context)
          brush = settings.brush
  
          layout.active = brush.use_gradient
  
          brush_texpaint_common_gradient(self, context, layout, brush, settings, True)
  
  
  class VIEW3D_PT_tools_brush_clone(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_parent_id = "VIEW3D_PT_tools_brush"
      bl_label = "Clone from Paint Slot"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          brush = settings.brush
  
          return brush.image_tool == 'CLONE'
  
      def draw_header(self, context):
          settings = self.paint_settings(context)
          self.layout.prop(settings, "use_clone_layer", text="")
  
      def draw(self, context):
          layout = self.layout
          settings = self.paint_settings(context)
          brush = settings.brush
  
          layout.active = settings.use_clone_layer
  
          brush_texpaint_common_clone(self, context, layout, brush, settings, True)
  
  
  class VIEW3D_PT_tools_brush_options(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_parent_id = "VIEW3D_PT_tools_brush"
      bl_label = "Options"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw(self, context):
          layout = self.layout
          tool_settings = context.tool_settings
          settings = self.paint_settings(context)
          brush = settings.brush
          capabilities = brush.sculpt_capabilities
  
          layout.use_property_split = True
          layout.use_property_decorate = False  # No animation.
  
          col = layout.column()
  
          if context.image_paint_object and brush:
              brush_texpaint_common_options(self, context, layout, brush, settings, True)
  
          elif context.sculpt_object and brush:
              if capabilities.has_accumulate:
                  col.prop(brush, "use_accumulate")
  
              UnifiedPaintPanel.prop_unified_size(col, context, brush, "use_locked_size")
  
              if capabilities.has_sculpt_plane:
                  col.prop(brush, "sculpt_plane")
                  col.prop(brush, "use_original_normal")
  
              col.prop(brush, "use_frontface", text="Front Faces Only")
              col.prop(brush, "use_projected")
  
          elif context.weight_paint_object and brush:
  
              if brush.weight_tool != 'SMEAR':
                  col.prop(brush, "use_accumulate")
  
              col.prop(brush, "use_frontface", text="Front Faces Only")
              col.prop(brush, "use_projected")
              col.prop(tool_settings, "use_auto_normalize", text="Auto Normalize")
              col.prop(tool_settings, "use_multipaint", text="Multi-Paint")
  
          elif context.vertex_paint_object and brush:
  
              if brush.vertex_tool != 'SMEAR':
                  col.prop(brush, "use_accumulate")
  
              col.prop(brush, "use_alpha")
              col.prop(brush, "use_frontface", text="Front Faces Only")
              col.prop(brush, "use_projected")
  
  
  class TEXTURE_UL_texpaintslots(UIList):
      def draw_item(self, _context, layout, _data, item, icon, _active_data, _active_propname, _index):
          # mat = data
  
          if self.layout_type in {'DEFAULT', 'COMPACT'}:
              layout.prop(item, "name", text="", emboss=False, icon_value=icon)
          elif self.layout_type == 'GRID':
              layout.alignment = 'CENTER'
              layout.label(text="")
  
  
  class VIEW3D_MT_tools_projectpaint_uvlayer(Menu):
      bl_label = "Clone Layer"
  
      def draw(self, context):
          layout = self.layout
  
          for i, uv_layer in enumerate(context.active_object.data.uv_layers):
              props = layout.operator("wm.context_set_int", text=uv_layer.name, translate=False)
              props.data_path = "active_object.data.uv_layers.active_index"
              props.value = i
  
  
  class VIEW3D_PT_slots_projectpaint(View3DPanel, Panel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_label = "Texture Slots"
  
      @classmethod
      def poll(cls, context):
          brush = context.tool_settings.image_paint.brush
          ob = context.active_object
          return (brush is not None and ob is not None)
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          settings = context.tool_settings.image_paint
  
          ob = context.active_object
  
          layout.prop(settings, "mode", text="Mode")
          layout.separator()
  
          if settings.mode == 'MATERIAL':
              if len(ob.material_slots) > 1:
                  layout.template_list("MATERIAL_UL_matslots", "layers",
                                       ob, "material_slots",
                                       ob, "active_material_index", rows=2)
              mat = ob.active_material
              if mat and mat.texture_paint_images:
                  row = layout.row()
                  row.template_list("TEXTURE_UL_texpaintslots", "",
                                    mat, "texture_paint_images",
                                    mat, "paint_active_slot", rows=2)
  
                  if mat.texture_paint_slots:
                      slot = mat.texture_paint_slots[mat.paint_active_slot]
                  else:
                      slot = None
  
                  have_image = slot is not None
              else:
                  row = layout.row()
  
                  box = row.box()
                  box.label(text="No Textures")
                  have_image = False
  
              sub = row.column(align=True)
              sub.operator_menu_enum("paint.add_texture_paint_slot", "type", icon='ADD', text="")
  
          elif settings.mode == 'IMAGE':
              mesh = ob.data
              uv_text = mesh.uv_layers.active.name if mesh.uv_layers.active else ""
              layout.template_ID(settings, "canvas", new="image.new", open="image.open")
              if settings.missing_uvs:
                  layout.operator("paint.add_simple_uvs", icon='ADD', text="Add UVs")
              else:
                  layout.menu("VIEW3D_MT_tools_projectpaint_uvlayer", text=uv_text, translate=False)
              have_image = settings.canvas is not None
  
              layout.prop(settings, "interpolation", text="")
  
          if settings.missing_uvs:
              layout.separator()
              split = layout.split()
              split.label(text="UV Map Needed", icon='INFO')
              split.operator("paint.add_simple_uvs", icon='ADD', text="Add Simple UVs")
          elif have_image:
              layout.separator()
              layout.operator("image.save_dirty", text="Save All Images", icon='FILE_TICK')
  
  # TODO, move to space_view3d.py
  
  
  class VIEW3D_PT_stencil_projectpaint(View3DPanel, Panel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_label = "Mask"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          brush = context.tool_settings.image_paint.brush
          ob = context.active_object
          return (brush is not None and ob is not None)
  
      def draw_header(self, context):
          ipaint = context.tool_settings.image_paint
          self.layout.prop(ipaint, "use_stencil_layer", text="")
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          tool_settings = context.tool_settings
          ipaint = tool_settings.image_paint
          ob = context.active_object
          mesh = ob.data
  
          col = layout.column()
          col.active = ipaint.use_stencil_layer
  
          stencil_text = mesh.uv_layer_stencil.name if mesh.uv_layer_stencil else ""
          split = col.split(factor=0.5)
          colsub = split.column()
          colsub.alignment = 'RIGHT'
          colsub.label(text="UV Layer")
          split.column().menu("VIEW3D_MT_tools_projectpaint_stencil", text=stencil_text, translate=False)
  
          # todo this should be combinded into a single row
          split = col.split(factor=0.5)
          colsub = split.column()
          colsub.alignment = 'RIGHT'
          colsub.label(text="Stencil Image")
          colsub = split.column()
          colsub.template_ID(ipaint, "stencil_image", new="image.new", open="image.open")
  
          row = col.row(align=True)
          row.prop(ipaint, "stencil_color", text="Display Color")
          row.prop(ipaint, "invert_stencil", text="", icon='IMAGE_ALPHA')
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_brush_display(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_label = "Display"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          return (settings and
                  settings.brush and
                  (context.sculpt_object or
                   context.vertex_paint_object or
                   context.weight_paint_object or
                   context.image_paint_object))
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          settings = self.paint_settings(context)
          brush = settings.brush
          tex_slot = brush.texture_slot
          tex_slot_mask = brush.mask_texture_slot
  
          col = layout.column()
  
          row = col.row(align=True)
  
          sub = row.row(align=True)
          sub.prop(brush, "cursor_overlay_alpha", text="Curve Alpha")
          sub.prop(brush, "use_cursor_overlay_override", toggle=True, text="", icon='BRUSH_DATA')
          row.prop(
              brush, "use_cursor_overlay", text="", toggle=True,
              icon='HIDE_OFF' if brush.use_cursor_overlay else 'HIDE_ON',
          )
  
          col.active = brush.brush_capabilities.has_overlay
  
          if context.image_paint_object or context.sculpt_object or context.vertex_paint_object:
              row = col.row(align=True)
  
              sub = row.row(align=True)
              sub.prop(brush, "texture_overlay_alpha", text="Texture Alpha")
              sub.prop(brush, "use_primary_overlay_override", toggle=True, text="", icon='BRUSH_DATA')
              if tex_slot.map_mode != 'STENCIL':
                  row.prop(
                      brush, "use_primary_overlay", text="", toggle=True,
                      icon='HIDE_OFF' if brush.use_primary_overlay else 'HIDE_ON',
                  )
  
          if context.image_paint_object:
              row = col.row(align=True)
  
              sub = row.row(align=True)
              sub.prop(brush, "mask_overlay_alpha", text="Mask Texture Alpha")
              sub.prop(brush, "use_secondary_overlay_override", toggle=True, text="", icon='BRUSH_DATA')
              if tex_slot_mask.map_mode != 'STENCIL':
                  row.prop(
                      brush, "use_secondary_overlay", text="", toggle=True,
                      icon='HIDE_OFF' if brush.use_secondary_overlay else 'HIDE_ON',
                  )
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_brush_texture(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_label = "Texture"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          return (settings and settings.brush and
                  (context.sculpt_object or context.image_paint_object or context.vertex_paint_object))
  
      def draw(self, context):
          layout = self.layout
  
          settings = self.paint_settings(context)
          brush = settings.brush
  
          col = layout.column()
  
          col.template_ID_preview(brush, "texture", new="texture.new", rows=3, cols=8)
  
          brush_texture_settings(col, brush, context.sculpt_object)
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_mask_texture(Panel, View3DPaintPanel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_label = "Texture Mask"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          return (settings and settings.brush and context.image_paint_object)
  
      def draw(self, context):
          layout = self.layout
  
          brush = context.tool_settings.image_paint.brush
  
          col = layout.column()
  
          col.template_ID_preview(brush, "mask_texture", new="texture.new", rows=3, cols=8)
  
          brush_mask_texture_settings(col, brush)
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_brush_stroke(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_label = "Stroke"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          return (settings and
                  settings.brush and
                  (context.sculpt_object or
                   context.vertex_paint_object or
                   context.weight_paint_object or
                   context.image_paint_object))
  
      def draw(self, context):
          layout = self.layout
  
          settings = self.paint_settings(context)
          brush = settings.brush
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          col = layout.column()
  
          col.prop(brush, "stroke_method")
  
          if brush.use_anchor:
              col.prop(brush, "use_edge_to_edge", text="Edge To Edge")
  
          if brush.use_airbrush:
              col.prop(brush, "rate", text="Rate", slider=True)
  
          if brush.use_space:
              row = col.row(align=True)
              row.prop(brush, "spacing", text="Spacing")
              row.prop(brush, "use_pressure_spacing", toggle=True, text="")
  
          if brush.use_line or brush.use_curve:
              row = col.row(align=True)
              row.prop(brush, "spacing", text="Spacing")
  
          if brush.use_curve:
              col.template_ID(brush, "paint_curve", new="paintcurve.new")
              col.operator("paintcurve.draw")
  
          if context.sculpt_object:
  
              if brush.sculpt_capabilities.has_space_attenuation:
                  col.prop(brush, "use_space_attenuation")
  
              if brush.sculpt_capabilities.has_jitter:
  
                  row = col.row(align=True)
                  if brush.use_relative_jitter:
                      row.prop(brush, "jitter", slider=True)
                  else:
                      row.prop(brush, "jitter_absolute")
                  row.prop(brush, "use_relative_jitter", icon_only=True)
                  row.prop(brush, "use_pressure_jitter", toggle=True, text="")
  
          else:
  
              row = col.row(align=True)
              if brush.use_relative_jitter:
                  row.prop(brush, "jitter", slider=True)
              else:
                  row.prop(brush, "jitter_absolute")
              row.prop(brush, "use_relative_jitter", icon_only=True)
              row.prop(brush, "use_pressure_jitter", toggle=True, text="")
  
          col.prop(settings, "input_samples")
  
  
  class VIEW3D_PT_tools_brush_stroke_smooth_stroke(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_label = "Smooth Stroke"
      bl_parent_id = "VIEW3D_PT_tools_brush_stroke"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          brush = settings.brush
          if brush.brush_capabilities.has_smooth_stroke:
              return True
  
      def draw_header(self, context):
          settings = self.paint_settings(context)
          brush = settings.brush
  
          self.layout.prop(brush, "use_smooth_stroke", text="")
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          settings = self.paint_settings(context)
          brush = settings.brush
  
          col = layout.column()
          col.active = brush.use_smooth_stroke
          col.prop(brush, "smooth_stroke_radius", text="Radius", slider=True)
          col.prop(brush, "smooth_stroke_factor", text="Factor", slider=True)
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_brush_falloff(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_label = "Falloff"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          settings = cls.paint_settings(context)
          return (settings and settings.brush and settings.brush.curve)
  
      def draw(self, context):
          layout = self.layout
          settings = self.paint_settings(context)
          brush = settings.brush
  
          layout.template_curve_mapping(brush, "curve", brush=True)
  
          col = layout.column(align=True)
          row = col.row(align=True)
          row.operator("brush.curve_preset", icon='SMOOTHCURVE', text="").shape = 'SMOOTH'
          row.operator("brush.curve_preset", icon='SPHERECURVE', text="").shape = 'ROUND'
          row.operator("brush.curve_preset", icon='ROOTCURVE', text="").shape = 'ROOT'
          row.operator("brush.curve_preset", icon='SHARPCURVE', text="").shape = 'SHARP'
          row.operator("brush.curve_preset", icon='LINCURVE', text="").shape = 'LINE'
          row.operator("brush.curve_preset", icon='NOCURVE', text="").shape = 'MAX'
  
  
  class VIEW3D_PT_tools_brush_falloff_frontface(View3DPaintPanel, Panel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_label = "Frontface Falloff"
      bl_parent_id = "VIEW3D_PT_tools_brush_falloff"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          return (context.weight_paint_object or context.vertex_paint_object)
  
      def draw_header(self, context):
          settings = self.paint_settings(context)
          brush = settings.brush
  
          self.layout.prop(brush, "use_frontface_falloff", text="")
  
      def draw(self, context):
          settings = self.paint_settings(context)
          brush = settings.brush
  
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          layout.active = brush.use_frontface_falloff
          layout.prop(brush, "falloff_angle", text="Angle")
  
  
  class VIEW3D_PT_tools_brush_falloff_normal(View3DPaintPanel, Panel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_label = "Normal Falloff"
      bl_parent_id = "VIEW3D_PT_tools_brush_falloff"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          return context.image_paint_object
  
      def draw_header(self, context):
          tool_settings = context.tool_settings
          ipaint = tool_settings.image_paint
  
          self.layout.prop(ipaint, "use_normal_falloff", text="")
  
      def draw(self, context):
          tool_settings = context.tool_settings
          ipaint = tool_settings.image_paint
  
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          layout.active = ipaint.use_normal_falloff
          layout.prop(ipaint, "normal_angle", text="Angle")
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_sculpt_dyntopo(Panel, View3DPaintPanel):
      bl_context = ".sculpt_mode"  # dot on purpose (access from topbar)
      bl_label = "Dyntopo"
      bl_options = {'DEFAULT_CLOSED'}
      bl_ui_units_x = 12
  
      @classmethod
      def poll(cls, context):
          return (context.sculpt_object and context.tool_settings.sculpt)
  
      def draw_header(self, context):
          is_popover = self.is_popover
          layout = self.layout
          layout.operator(
              "sculpt.dynamic_topology_toggle",
              icon='CHECKBOX_HLT' if context.sculpt_object.use_dynamic_topology_sculpting else 'CHECKBOX_DEHLT',
              text="",
              emboss=is_popover,
          )
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          tool_settings = context.tool_settings
          sculpt = tool_settings.sculpt
          settings = self.paint_settings(context)
          brush = settings.brush
  
          col = layout.column()
          col.active = context.sculpt_object.use_dynamic_topology_sculpting
  
          sub = col.column()
          sub.active = (brush and brush.sculpt_tool != 'MASK')
          if sculpt.detail_type_method in {'CONSTANT', 'MANUAL'}:
              row = sub.row(align=True)
              row.prop(sculpt, "constant_detail_resolution")
              row.operator("sculpt.sample_detail_size", text="", icon='EYEDROPPER')
          elif (sculpt.detail_type_method == 'BRUSH'):
              sub.prop(sculpt, "detail_percent")
          else:
              sub.prop(sculpt, "detail_size")
          sub.prop(sculpt, "detail_refine_method", text="Refine Method")
          sub.prop(sculpt, "detail_type_method", text="Detailing")
  
          col.prop(sculpt, "use_smooth_shading")
  
  
  class VIEW3D_PT_sculpt_dyntopo_remesh(Panel, View3DPaintPanel):
      bl_context = ".sculpt_mode"  # dot on purpose (access from topbar)
      bl_label = "Remesh"
      bl_parent_id = "VIEW3D_PT_sculpt_dyntopo"
      bl_options = {'DEFAULT_CLOSED'}
      bl_ui_units_x = 12
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          tool_settings = context.tool_settings
          sculpt = tool_settings.sculpt
  
          col = layout.column()
          col.active = context.sculpt_object.use_dynamic_topology_sculpting
  
          col.prop(sculpt, "symmetrize_direction")
  
          flow = layout.grid_flow(row_major=True, columns=0, even_columns=True, even_rows=False, align=False)
  
          col = flow.column()
          col.operator("sculpt.symmetrize")
          col = flow.column()
          col.operator("sculpt.optimize")
          if sculpt.detail_type_method in {'CONSTANT', 'MANUAL'}:
              col = flow.column()
              col.operator("sculpt.detail_flood_fill")
  
  # TODO, move to space_view3d.py
  
  
  class VIEW3D_PT_sculpt_options(Panel, View3DPaintPanel):
      bl_context = ".sculpt_mode"  # dot on purpose (access from topbar)
      bl_label = "Options"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          return (context.sculpt_object and context.tool_settings.sculpt)
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          tool_settings = context.tool_settings
          sculpt = tool_settings.sculpt
  
          flow = layout.grid_flow(row_major=True, columns=0, even_columns=True, even_rows=False, align=False)
  
          col = flow.column()
          col.prop(sculpt, "use_threaded", text="Threaded Sculpt")
          col = flow.column()
          col.prop(sculpt, "show_low_resolution")
          col = flow.column()
          col.prop(sculpt, "use_deform_only")
          col = flow.column()
          col.prop(sculpt, "show_diffuse_color")
          col = flow.column()
          col.prop(sculpt, "show_mask")
  
  
  class VIEW3D_PT_sculpt_options_unified(Panel, View3DPaintPanel):
      bl_context = ".sculpt_mode"  # dot on purpose (access from topbar)
      bl_parent_id = "VIEW3D_PT_sculpt_options"
      bl_label = "Unified Brush"
  
      @classmethod
      def poll(cls, context):
          return (context.sculpt_object and context.tool_settings.sculpt)
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          self.unified_paint_settings(layout, context)
  
  
  class VIEW3D_PT_sculpt_options_gravity(Panel, View3DPaintPanel):
      bl_context = ".sculpt_mode"  # dot on purpose (access from topbar)
      bl_parent_id = "VIEW3D_PT_sculpt_options"
      bl_label = "Gravity"
  
      @classmethod
      def poll(cls, context):
          return (context.sculpt_object and context.tool_settings.sculpt)
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          tool_settings = context.tool_settings
          sculpt = tool_settings.sculpt
          capabilities = sculpt.brush.sculpt_capabilities
  
          col = layout.column()
          col.active = capabilities.has_gravity
          col.prop(sculpt, "gravity", slider=True, text="Factor")
          col.prop(sculpt, "gravity_object")
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_sculpt_symmetry(Panel, View3DPaintPanel):
      bl_context = ".sculpt_mode"  # dot on purpose (access from topbar)
      bl_label = "Symmetry"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          return (context.sculpt_object and context.tool_settings.sculpt)
  
      def draw(self, context):
          layout = self.layout
  
          sculpt = context.tool_settings.sculpt
  
          split = layout.split()
  
          col = split.column()
          col.alignment = 'RIGHT'
          col.label(text="Mirror")
  
          col = split.column()
  
          row = col.row(align=True)
          row.prop(sculpt, "use_symmetry_x", text="X", toggle=True)
          row.prop(sculpt, "use_symmetry_y", text="Y", toggle=True)
          row.prop(sculpt, "use_symmetry_z", text="Z", toggle=True)
  
          split = layout.split()
  
          col = split.column()
          col.alignment = 'RIGHT'
          col.label(text="Lock")
  
          col = split.column()
  
          row = col.row(align=True)
          row.prop(sculpt, "lock_x", text="X", toggle=True)
          row.prop(sculpt, "lock_y", text="Y", toggle=True)
          row.prop(sculpt, "lock_z", text="Z", toggle=True)
  
          split = layout.split()
  
          col = split.column()
          col.alignment = 'RIGHT'
          col.label(text="Tiling")
  
          col = split.column()
  
          row = col.row(align=True)
          row.prop(sculpt, "tile_x", text="X", toggle=True)
          row.prop(sculpt, "tile_y", text="Y", toggle=True)
          row.prop(sculpt, "tile_z", text="Z", toggle=True)
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          layout.prop(sculpt, "use_symmetry_feather", text="Feather")
          layout.column().prop(sculpt, "radial_symmetry", text="Radial")
          layout.column().prop(sculpt, "tile_offset", text="Tile Offset")
  
  
  class VIEW3D_PT_tools_brush_display_show_brush(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_label = "Show Brush"
      bl_parent_id = "VIEW3D_PT_tools_brush_display"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw_header(self, context):
          settings = self.paint_settings(context)
  
          self.layout.prop(settings, "show_brush", text="")
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          settings = self.paint_settings(context)
          brush = settings.brush
  
          col = layout.column()
          col.active = settings.show_brush
  
          if context.sculpt_object and context.tool_settings.sculpt:
              if brush.sculpt_capabilities.has_secondary_color:
                  col.prop(brush, "cursor_color_add", text="Add")
                  col.prop(brush, "cursor_color_subtract", text="Subtract")
              else:
                  col.prop(brush, "cursor_color_add", text="Color")
          else:
              col.prop(brush, "cursor_color_add", text="Color")
  
  
  class VIEW3D_PT_tools_brush_display_custom_icon(Panel, View3DPaintPanel):
      bl_context = ".paint_common"  # dot on purpose (access from topbar)
      bl_label = "Custom Icon"
      bl_parent_id = "VIEW3D_PT_tools_brush_display"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw_header(self, context):
          settings = self.paint_settings(context)
          brush = settings.brush
  
          self.layout.prop(brush, "use_custom_icon", text="")
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          settings = self.paint_settings(context)
          brush = settings.brush
  
          col = layout.column()
          col.active = brush.use_custom_icon
          col.prop(brush, "icon_filepath", text="")
  
  # ********** default tools for weight-paint ****************
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_weightpaint_symmetry(Panel, View3DPaintPanel):
      bl_context = ".weightpaint"
      bl_options = {'DEFAULT_CLOSED'}
      bl_label = "Symmetry"
  
      def draw(self, context):
          layout = self.layout
          tool_settings = context.tool_settings
          wpaint = tool_settings.weight_paint
          draw_vpaint_symmetry(layout, wpaint)
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_weightpaint_options(Panel, View3DPaintPanel):
      bl_context = ".weightpaint"
      bl_label = "Options"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          tool_settings = context.tool_settings
          wpaint = tool_settings.weight_paint
  
          col = layout.column()
          col.prop(wpaint, "use_group_restrict")
  
          obj = context.weight_paint_object
          if obj.type == 'MESH':
              mesh = obj.data
              col.prop(mesh, "use_mirror_x")
              row = col.row()
              row.active = mesh.use_mirror_x
              row.prop(mesh, "use_mirror_topology")
  
  
  class VIEW3D_PT_tools_weightpaint_options_unified(Panel, View3DPaintPanel):
      bl_context = ".weightpaint"
      bl_label = "Unified Brush"
      bl_parent_id = "VIEW3D_PT_tools_weightpaint_options"
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          self.unified_paint_settings(layout, context)
  
  # ********** default tools for vertex-paint ****************
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_vertexpaint_options(Panel, View3DPaintPanel):
      bl_context = ".vertexpaint"  # dot on purpose (access from topbar)
      bl_label = "Options"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw(self, context):
          layout = self.layout
  
          layout.label(text="Unified Brush")
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          self.unified_paint_settings(layout, context)
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_vertexpaint_symmetry(Panel, View3DPaintPanel):
      bl_context = ".vertexpaint"  # dot on purpose (access from topbar)
      bl_options = {'DEFAULT_CLOSED'}
      bl_label = "Symmetry"
  
      def draw(self, context):
          layout = self.layout
          tool_settings = context.tool_settings
          vpaint = tool_settings.vertex_paint
          draw_vpaint_symmetry(layout, vpaint)
  
  
  # ********** default tools for texture-paint ****************
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_imagepaint_options_external(Panel, View3DPaintPanel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_label = "External"
      bl_parent_id = "VIEW3D_PT_tools_imagepaint_options"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          tool_settings = context.tool_settings
          ipaint = tool_settings.image_paint
  
          layout.prop(ipaint, "screen_grab_size", text="Screen Grab Size")
  
          layout.separator()
  
          flow = layout.grid_flow(row_major=True, columns=0, even_columns=True, even_rows=False, align=False)
          col = flow.column()
          col.operator("image.project_edit", text="Quick Edit")
          col = flow.column()
          col.operator("image.project_apply", text="Apply")
          col = flow.column()
          col.operator("paint.project_image", text="Apply Camera Image")
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_imagepaint_symmetry(Panel, View3DPaintPanel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_label = "Symmetry"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw(self, context):
          layout = self.layout
  
          tool_settings = context.tool_settings
          ipaint = tool_settings.image_paint
  
          split = layout.split()
  
          col = split.column()
          col.alignment = 'RIGHT'
          col.label(text="Mirror")
  
          col = split.column()
  
          row = col.row(align=True)
          row.prop(ipaint, "use_symmetry_x", text="X", toggle=True)
          row.prop(ipaint, "use_symmetry_y", text="Y", toggle=True)
          row.prop(ipaint, "use_symmetry_z", text="Z", toggle=True)
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_imagepaint_options(View3DPaintPanel, Panel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_label = "Options"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          brush = context.tool_settings.image_paint.brush
          return (brush is not None)
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          tool_settings = context.tool_settings
          ipaint = tool_settings.image_paint
  
          layout.prop(ipaint, "seam_bleed")
          layout.prop(ipaint, "dither", slider=True)
  
          flow = layout.grid_flow(row_major=True, columns=0, even_columns=True, even_rows=False, align=False)
  
          col = flow.column()
          col.prop(ipaint, "use_occlude")
  
          col = flow.column()
          col.prop(ipaint, "use_backface_culling", text="Backface Culling")
  
  
  class VIEW3D_PT_tools_imagepaint_options_unified(Panel, View3DPaintPanel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_parent_id = "VIEW3D_PT_tools_imagepaint_options"
      bl_label = "Unified Brush"
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          self.unified_paint_settings(layout, context)
  
  
  class VIEW3D_PT_tools_imagepaint_options_cavity(View3DPaintPanel, Panel):
      bl_context = ".imagepaint"  # dot on purpose (access from topbar)
      bl_label = "Cavity Mask"
      bl_parent_id = "VIEW3D_PT_tools_imagepaint_options"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw_header(self, context):
          tool_settings = context.tool_settings
          ipaint = tool_settings.image_paint
  
          self.layout.prop(ipaint, "use_cavity", text="")
  
      def draw(self, context):
          layout = self.layout
  
          tool_settings = context.tool_settings
          ipaint = tool_settings.image_paint
  
          layout.active = ipaint.use_cavity
  
          layout.template_curve_mapping(ipaint, "cavity_curve", brush=True)
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_imagepaint_options(View3DPaintPanel):
      bl_label = "Options"
  
      @classmethod
      def poll(cls, context):
          return (context.image_paint_object and context.tool_settings.image_paint)
  
      def draw(self, context):
          layout = self.layout
  
          col = layout.column()
          self.unified_paint_settings(col, context)
  
  
  class VIEW3D_MT_tools_projectpaint_stencil(Menu):
      bl_label = "Mask Layer"
  
      def draw(self, context):
          layout = self.layout
          for i, uv_layer in enumerate(context.active_object.data.uv_layers):
              props = layout.operator("wm.context_set_int", text=uv_layer.name, translate=False)
              props.data_path = "active_object.data.uv_layer_stencil_index"
              props.value = i
  
  
  # TODO, move to space_view3d.py
  class VIEW3D_PT_tools_particlemode_options(View3DPanel, Panel):
      """Default tools for particle mode"""
      bl_context = ".particlemode"
      bl_label = "Options"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False  # No animation.
  
          pe = context.tool_settings.particle_edit
          ob = pe.object
  
          layout.prop(pe, "type", text="Editing Type")
  
          ptcache = None
  
          if pe.type == 'PARTICLES':
              if ob.particle_systems:
                  if len(ob.particle_systems) > 1:
                      layout.template_list("UI_UL_list", "particle_systems", ob, "particle_systems",
                                           ob.particle_systems, "active_index", rows=2, maxrows=3)
  
                  ptcache = ob.particle_systems.active.point_cache
          else:
              for md in ob.modifiers:
                  if md.type == pe.type:
                      ptcache = md.point_cache
  
          if ptcache and len(ptcache.point_caches) > 1:
              layout.template_list("UI_UL_list", "particles_point_caches", ptcache, "point_caches",
                                   ptcache.point_caches, "active_index", rows=2, maxrows=3)
  
          if not pe.is_editable:
              layout.label(text="Point cache must be baked")
              layout.label(text="in memory to enable editing!")
  
          col = layout.column(align=True)
          col.active = pe.is_editable
          col.prop(ob.data, "use_mirror_x")
          col.separator()
          col.prop(pe, "use_preserve_length", text="Preserve Strand Lengths")
          col.prop(pe, "use_preserve_root", text="Preserve Root Positions")
          if not pe.is_hair:
              col.prop(pe, "use_auto_velocity", text="Auto-Velocity")
  
  
  class VIEW3D_PT_tools_particlemode_options_shapecut(View3DPanel, Panel):
      """Default tools for particle mode"""
      bl_parent_id = "VIEW3D_PT_tools_particlemode_options"
      bl_label = "Cut Particles to Shape"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False  # No animation.
  
          pe = context.tool_settings.particle_edit
  
          layout.prop(pe, "shape_object")
          layout.operator("particle.shape_cut", text="Cut")
  
  
  class VIEW3D_PT_tools_particlemode_options_display(View3DPanel, Panel):
      """Default tools for particle mode"""
      bl_parent_id = "VIEW3D_PT_tools_particlemode_options"
      bl_label = "Viewport Display"
  
      def draw(self, context):
          layout = self.layout
  
          layout.use_property_split = True
          layout.use_property_decorate = False  # No animation.
  
          pe = context.tool_settings.particle_edit
  
          col = layout.column()
          col.active = pe.is_editable
          col.prop(pe, "display_step", text="Path Steps")
          if pe.is_hair:
              col.prop(pe, "show_particles", text="Children")
          else:
              if pe.type == 'PARTICLES':
                  col.prop(pe, "show_particles", text="Particles")
              col.prop(pe, "use_fade_time")
              sub = col.row(align=True)
              sub.active = pe.use_fade_time
              sub.prop(pe, "fade_frames", slider=True)
  
  
  class VIEW3D_PT_tools_meshedit_normal(View3DPanel, Panel):
      bl_category = ""
      bl_context = ".mesh_edit"
      bl_label = "Normals"
      bl_options = {'DEFAULT_CLOSED'}
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False  # No animation.
  
          tool_settings = context.tool_settings
  
          layout.prop(tool_settings, "normal_vector", text="Normal Vector")
          layout.prop(tool_settings, "face_strength", text="Face Strength")
  
  # ********** grease pencil object tool panels ****************
  
  # Grease Pencil drawing brushes
  
  
  class VIEW3D_PT_tools_grease_pencil_brush(View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_label = "Brush"
  
      @classmethod
      def poll(cls, context):
          is_3d_view = context.space_data.type == 'VIEW_3D'
          if is_3d_view:
              if context.gpencil_data is None:
                  return False
  
              gpd = context.gpencil_data
              return bool(gpd.is_stroke_paint_mode)
          else:
              return True
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          tool_settings = context.scene.tool_settings
          gpencil_paint = tool_settings.gpencil_paint
  
          row = layout.row()
          col = row.column()
          col.template_ID_preview(gpencil_paint, "brush", new="brush.add_gpencil", rows=3, cols=8)
  
          col = row.column()
          brush = gpencil_paint.brush
  
          sub = col.column(align=True)
          sub.operator("gpencil.brush_presets_create", icon='HELP', text="")
  
          if brush is not None:
              gp_settings = brush.gpencil_settings
  
              if brush.gpencil_tool in {'DRAW', 'FILL'}:
                  row = layout.row(align=True)
                  row_mat = row.row()
                  if gp_settings.use_material_pin:
                      row_mat.template_ID(gp_settings, "material", live_icon=True)
                  else:
                      row_mat.template_ID(context.active_object, "active_material", live_icon=True)
                      row_mat.enabled = False  # will otherwise allow to change material in active slot
  
                  row.prop(gp_settings, "use_material_pin", text="")
  
              if not self.is_popover:
                  from .properties_paint_common import (
                      brush_basic_gpencil_paint_settings,
                  )
                  brush_basic_gpencil_paint_settings(layout, context, brush, compact=True)
  
  
  # Grease Pencil drawing brushes options
  class VIEW3D_PT_tools_grease_pencil_brush_option(View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_label = "Options"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          brush = context.tool_settings.gpencil_paint.brush
          return brush is not None and brush.gpencil_tool not in {'ERASE', 'FILL'}
  
      def draw_header_preset(self, _context):
          VIEW3D_PT_gpencil_brush_presets.draw_panel_header(self.layout)
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          brush = context.tool_settings.gpencil_paint.brush
  
          if brush is not None:
              gp_settings = brush.gpencil_settings
              col = layout.column(align=True)
              col.prop(gp_settings, "input_samples")
              col.separator()
  
              col.prop(gp_settings, "active_smooth_factor")
              col.separator()
  
              col.prop(gp_settings, "angle", slider=True)
              col.prop(gp_settings, "angle_factor", text="Factor", slider=True)
  
              ob = context.object
              if ob:
                  ma = ob.active_material
              elif brush.gpencil_settings.material:
                  ma = brush.gpencil_settings.material
              else:
                  ma = None
  
              col.separator()
              subcol = col.column(align=True)
              if ma and ma.grease_pencil.mode != 'DOTS':
                  subcol.enabled = False
              subcol.prop(gp_settings, "gradient_factor", slider=True)
              subcol.prop(gp_settings, "gradient_shape")
  
  
  class VIEW3D_PT_tools_grease_pencil_brush_stabilizer(View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_parent_id = 'VIEW3D_PT_tools_grease_pencil_brush_option'
      bl_label = "Stabilize"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          brush = context.tool_settings.gpencil_paint.brush
          return brush is not None and brush.gpencil_tool == 'DRAW'
  
      def draw_header(self, context):
          brush = context.tool_settings.gpencil_paint.brush
          gp_settings = brush.gpencil_settings
          self.layout.prop(gp_settings, "use_settings_stabilizer", text="")
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          brush = context.tool_settings.gpencil_paint.brush
          gp_settings = brush.gpencil_settings
          layout.active = gp_settings.use_settings_stabilizer
  
          layout.prop(brush, "smooth_stroke_radius", text="Radius", slider=True)
          layout.prop(brush, "smooth_stroke_factor", text="Factor", slider=True)
  
  
  class VIEW3D_PT_tools_grease_pencil_brush_settings(View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_parent_id = 'VIEW3D_PT_tools_grease_pencil_brush_option'
      bl_label = "Post-Processing"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          brush = context.tool_settings.gpencil_paint.brush
          return brush is not None and brush.gpencil_tool != 'ERASE'
  
      def draw_header(self, context):
          brush = context.tool_settings.gpencil_paint.brush
          gp_settings = brush.gpencil_settings
          self.layout.prop(gp_settings, "use_settings_postprocess", text="")
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          brush = context.tool_settings.gpencil_paint.brush
          gp_settings = brush.gpencil_settings
          layout.active = gp_settings.use_settings_postprocess
  
          col = layout.column(align=True)
          col.prop(gp_settings, "pen_smooth_factor")
          col.prop(gp_settings, "pen_smooth_steps")
  
          col = layout.column(align=True)
          col.prop(gp_settings, "pen_thick_smooth_factor")
          col.prop(gp_settings, "pen_thick_smooth_steps", text="Iterations")
  
          col = layout.column(align=True)
          col.prop(gp_settings, "pen_subdivision_steps")
          col.prop(gp_settings, "random_subdiv", text="Randomness", slider=True)
  
          col = layout.column(align=True)
          col.prop(gp_settings, "trim")
  
  
  class VIEW3D_PT_tools_grease_pencil_brush_random(View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_parent_id = 'VIEW3D_PT_tools_grease_pencil_brush_option'
      bl_label = "Randomize"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          brush = context.tool_settings.gpencil_paint.brush
          return brush is not None and brush.gpencil_tool != 'ERASE'
  
      def draw_header(self, context):
          brush = context.tool_settings.gpencil_paint.brush
          gp_settings = brush.gpencil_settings
          self.layout.prop(gp_settings, "use_settings_random", text="")
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          brush = context.tool_settings.gpencil_paint.brush
          gp_settings = brush.gpencil_settings
          layout.active = gp_settings.use_settings_random
  
          layout.prop(gp_settings, "random_pressure", text="Pressure", slider=True)
          layout.prop(gp_settings, "random_strength", text="Strength", slider=True)
          layout.prop(gp_settings, "uv_random", text="UV", slider=True)
  
          row = layout.row(align=True)
          row.prop(gp_settings, "pen_jitter", slider=True)
          row.prop(gp_settings, "use_jitter_pressure", text="", icon='STYLUS_PRESSURE')
  
  
  # Grease Pencil drawingcurves
  class VIEW3D_PT_tools_grease_pencil_brushcurves(View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_label = "Curves"
      bl_options = {'DEFAULT_CLOSED'}
  
      @classmethod
      def poll(cls, context):
          brush = context.tool_settings.gpencil_paint.brush
          return brush is not None and brush.gpencil_tool not in {'ERASE', 'FILL'}
  
      def draw(self, context):
          pass
  
  
  class VIEW3D_PT_tools_grease_pencil_brushcurves_sensitivity(View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_label = "Sensitivity"
      bl_parent_id = "VIEW3D_PT_tools_grease_pencil_brushcurves"
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
  
          brush = context.tool_settings.gpencil_paint.brush
          gp_settings = brush.gpencil_settings
  
          layout.template_curve_mapping(gp_settings, "curve_sensitivity", brush=True)
  
  
  class VIEW3D_PT_tools_grease_pencil_brushcurves_strength(View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_label = "Strength"
      bl_parent_id = "VIEW3D_PT_tools_grease_pencil_brushcurves"
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
  
          brush = context.tool_settings.gpencil_paint.brush
          gp_settings = brush.gpencil_settings
  
          layout.template_curve_mapping(gp_settings, "curve_strength", brush=True)
  
  
  class VIEW3D_PT_tools_grease_pencil_brushcurves_jitter(View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_label = "Jitter"
      bl_parent_id = "VIEW3D_PT_tools_grease_pencil_brushcurves"
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
  
          brush = context.tool_settings.gpencil_paint.brush
          gp_settings = brush.gpencil_settings
  
          layout.template_curve_mapping(gp_settings, "curve_jitter", brush=True)
  
  
  # Grease Pencil stroke editing tools
  class VIEW3D_PT_tools_grease_pencil_edit(GreasePencilStrokeEditPanel, Panel):
      bl_space_type = 'VIEW_3D'
  
  
  # Grease Pencil stroke interpolation tools
  class VIEW3D_PT_tools_grease_pencil_interpolate(Panel):
      bl_space_type = 'VIEW_3D'
      bl_region_type = 'HEADER'
      bl_label = "Interpolate"
  
      @classmethod
      def poll(cls, context):
          if context.gpencil_data is None:
              return False
  
          gpd = context.gpencil_data
          return bool(context.editable_gpencil_strokes) and bool(gpd.use_stroke_edit_mode)
  
      def draw(self, context):
          layout = self.layout
          settings = context.tool_settings.gpencil_interpolate
  
          col = layout.column(align=True)
          col.label(text="Interpolate Strokes")
          col.operator("gpencil.interpolate", text="Interpolate")
          col.operator("gpencil.interpolate_sequence", text="Sequence")
          col.operator("gpencil.interpolate_reverse", text="Remove Breakdowns")
  
          col = layout.column(align=True)
          col.label(text="Options:")
          col.prop(settings, "interpolate_all_layers")
          col.prop(settings, "interpolate_selected_only")
  
          col = layout.column(align=True)
          col.label(text="Sequence Options:")
          col.prop(settings, "type")
          if settings.type == 'CUSTOM':
              # TODO: Options for loading/saving curve presets?
              col.template_curve_mapping(settings, "interpolation_curve", brush=True)
          elif settings.type != 'LINEAR':
              col.prop(settings, "easing")
  
              if settings.type == 'BACK':
                  layout.prop(settings, "back")
              elif settings.type == 'ELASTIC':
                  sub = layout.column(align=True)
                  sub.prop(settings, "amplitude")
                  sub.prop(settings, "period")
  
  
  # Grease Pencil stroke sculpting tools
  class VIEW3D_PT_tools_grease_pencil_sculpt(GreasePencilStrokeSculptPanel, View3DPanel, Panel):
      bl_context = ".greasepencil_sculpt"
      bl_category = "Tools"
      bl_label = "Brush"
  
  
  # Grease Pencil weight painting tools
  class VIEW3D_PT_tools_grease_pencil_weight_paint(View3DPanel, Panel):
      bl_context = ".greasepencil_weight"
      bl_category = "Tools"
      bl_label = "Brush"
  
      def draw(self, context):
          layout = self.layout
          layout.use_property_split = True
          layout.use_property_decorate = False
  
          settings = context.tool_settings.gpencil_sculpt
          brush = settings.brush
  
          layout.template_icon_view(settings, "weight_tool", show_labels=True)
  
          col = layout.column()
  
          if not self.is_popover:
              from .properties_paint_common import (
                  brush_basic_gpencil_weight_settings,
              )
              brush_basic_gpencil_weight_settings(col, context, brush)
  
  
  # Grease Pencil Brush Appeareance (one for each mode)
  class VIEW3D_PT_tools_grease_pencil_paint_appearance(GreasePencilAppearancePanel, View3DPanel, Panel):
      bl_context = ".greasepencil_paint"
      bl_label = "Display"
  
  
  class VIEW3D_PT_tools_grease_pencil_sculpt_appearance(GreasePencilAppearancePanel, View3DPanel, Panel):
      bl_context = ".greasepencil_sculpt"
      bl_label = "Display"
  
  
  class VIEW3D_PT_tools_grease_pencil_sculpt_options(GreasePencilSculptOptionsPanel, View3DPanel, Panel):
      bl_context = ".greasepencil_sculpt"
      bl_label = "Sculpt Strokes"
      bl_parent_id = 'VIEW3D_PT_tools_grease_pencil_sculpt'
  
  
  class VIEW3D_PT_tools_grease_pencil_weight_appearance(GreasePencilAppearancePanel, View3DPanel, Panel):
      bl_context = ".greasepencil_weight"
      bl_label = "Display"
  
  
  class VIEW3D_PT_gpencil_brush_presets(PresetPanel, Panel):
      """Brush settings"""
      bl_label = "Brush Presets"
      preset_subdir = "gpencil_brush"
      preset_operator = "script.execute_preset"
      preset_add_operator = "scene.gpencil_brush_preset_add"
  
  
  classes = (
      VIEW3D_PT_tools_meshedit_normal,
      VIEW3D_PT_tools_meshedit_options,
      VIEW3D_PT_tools_curveedit_options_stroke,
      VIEW3D_PT_tools_armatureedit_options,
      VIEW3D_PT_tools_posemode_options,
      VIEW3D_PT_slots_projectpaint,
      VIEW3D_PT_tools_brush,
      VIEW3D_PT_tools_brush_color,
      VIEW3D_PT_tools_brush_swatches,
      VIEW3D_PT_tools_brush_gradient,
      VIEW3D_PT_tools_brush_clone,
      VIEW3D_PT_tools_brush_options,
      TEXTURE_UL_texpaintslots,
      VIEW3D_MT_tools_projectpaint_uvlayer,
      VIEW3D_PT_stencil_projectpaint,
      VIEW3D_PT_tools_brush_texture,
      VIEW3D_PT_tools_mask_texture,
      VIEW3D_PT_tools_brush_stroke,
      VIEW3D_PT_tools_brush_stroke_smooth_stroke,
      VIEW3D_PT_tools_brush_falloff,
      VIEW3D_PT_tools_brush_falloff_frontface,
      VIEW3D_PT_tools_brush_falloff_normal,
      VIEW3D_PT_tools_brush_display,
      VIEW3D_PT_tools_brush_display_show_brush,
      VIEW3D_PT_tools_brush_display_custom_icon,
      VIEW3D_PT_sculpt_dyntopo,
      VIEW3D_PT_sculpt_dyntopo_remesh,
      VIEW3D_PT_sculpt_symmetry,
      VIEW3D_PT_sculpt_options,
      VIEW3D_PT_sculpt_options_unified,
      VIEW3D_PT_sculpt_options_gravity,
      VIEW3D_PT_tools_weightpaint_symmetry,
      VIEW3D_PT_tools_weightpaint_options,
      VIEW3D_PT_tools_weightpaint_options_unified,
      VIEW3D_PT_tools_vertexpaint_symmetry,
      VIEW3D_PT_tools_vertexpaint_options,
      VIEW3D_PT_tools_imagepaint_symmetry,
      VIEW3D_PT_tools_imagepaint_options,
      VIEW3D_PT_tools_imagepaint_options_cavity,
      VIEW3D_PT_tools_imagepaint_options_unified,
      VIEW3D_PT_tools_imagepaint_options_external,
      VIEW3D_MT_tools_projectpaint_stencil,
      VIEW3D_PT_tools_particlemode,
      VIEW3D_PT_tools_particlemode_options,
      VIEW3D_PT_tools_particlemode_options_shapecut,
      VIEW3D_PT_tools_particlemode_options_display,
  
      VIEW3D_PT_gpencil_brush_presets,
      VIEW3D_PT_tools_grease_pencil_brush,
      VIEW3D_PT_tools_grease_pencil_brush_option,
      VIEW3D_PT_tools_grease_pencil_brush_settings,
      VIEW3D_PT_tools_grease_pencil_brush_stabilizer,
      VIEW3D_PT_tools_grease_pencil_brush_random,
      VIEW3D_PT_tools_grease_pencil_brushcurves,
      VIEW3D_PT_tools_grease_pencil_brushcurves_sensitivity,
      VIEW3D_PT_tools_grease_pencil_brushcurves_strength,
      VIEW3D_PT_tools_grease_pencil_brushcurves_jitter,
      VIEW3D_PT_tools_grease_pencil_sculpt,
      VIEW3D_PT_tools_grease_pencil_weight_paint,
      VIEW3D_PT_tools_grease_pencil_paint_appearance,
      VIEW3D_PT_tools_grease_pencil_sculpt_options,
      VIEW3D_PT_tools_grease_pencil_sculpt_appearance,
      VIEW3D_PT_tools_grease_pencil_weight_appearance,
      VIEW3D_PT_tools_grease_pencil_interpolate,
  )
  
  if __name__ == "__main__":  # only for live edit.
      from bpy.utils import register_class
      for cls in classes:
          register_class(cls)
  