node_efficiency_tools.py

        for ident, type, rna_name in shaders_input_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchShadersOutputSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_shaders_output_submenu"
    bl_label = "Output"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in shaders_output_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchShadersShaderSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_shaders_shader_submenu"
    bl_label = "Shader"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in shaders_shader_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchShadersTextureSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_shaders_texture_submenu"
    bl_label = "Texture"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in shaders_texture_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchShadersColorSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_shaders_color_submenu"
    bl_label = "Color"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in shaders_color_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchShadersVectorSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_shaders_vector_submenu"
    bl_label = "Vector"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in shaders_vector_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchShadersConverterSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_shaders_converter_submenu"
    bl_label = "Converter"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in shaders_converter_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchShadersLayoutSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_shaders_layout_submenu"
    bl_label = "Layout"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in shaders_layout_nodes_props:
            if type != 'FRAME':
                props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
                props.to_type = ident


class NWSwitchCompoInputSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_compo_input_submenu"
    bl_label = "Input"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in compo_input_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchCompoOutputSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_compo_output_submenu"
    bl_label = "Output"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in compo_output_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchCompoColorSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_compo_color_submenu"
    bl_label = "Color"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in compo_color_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchCompoConverterSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_compo_converter_submenu"
    bl_label = "Converter"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in compo_converter_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchCompoFilterSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_compo_filter_submenu"
    bl_label = "Filter"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in compo_filter_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchCompoVectorSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_compo_vector_submenu"
    bl_label = "Vector"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in compo_vector_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchCompoMatteSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_compo_matte_submenu"
    bl_label = "Matte"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in compo_matte_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchCompoDistortSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_compo_distort_submenu"
    bl_label = "Distort"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in compo_distort_nodes_props:
            props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
            props.to_type = ident


class NWSwitchCompoLayoutSubmenu(Menu, NWBase):
    bl_idname = "NODE_MT_nw_switch_compo_layout_submenu"
    bl_label = "Layout"

    def draw(self, context):
        layout = self.layout
        for ident, type, rna_name in compo_layout_nodes_props:
            if type != 'FRAME':
                props = layout.operator(NWSwitchNodeType.bl_idname, text=rna_name)
                props.to_type = ident


#
#  APPENDAGES TO EXISTING UI
#


def select_parent_children_buttons(self, context):
    layout = self.layout
    layout.operator(NWSelectParentChildren.bl_idname, text="Select frame's members (children)").option = 'CHILD'
    layout.operator(NWSelectParentChildren.bl_idname, text="Select parent frame").option = 'PARENT'


def attr_nodes_menu_func(self, context):
    col = self.layout.column(align=True)
    col.menu("NODE_MT_nw_node_uvs_menu")
    col.menu("NODE_MT_nw_node_vertex_color_menu")
    col.separator()


def bgreset_menu_func(self, context):
    self.layout.operator(NWResetBG.bl_idname)


#
#  REGISTER/UNREGISTER CLASSES AND KEYMAP ITEMS
#

addon_keymaps = []
# kmi_defs entry: (identifier, key, CTRL, SHIFT, ALT, props, nice name)
# props entry: (property name, property value)
kmi_defs = (
    # MERGE NODES
    # NWMergeNodes with Ctrl (AUTO).
    (NWMergeNodes.bl_idname, 'NUMPAD_0', True, False, False,
        (('mode', 'MIX'), ('merge_type', 'AUTO'),), "Merge Nodes (Automatic)"),
    (NWMergeNodes.bl_idname, 'ZERO', True, False, False,
        (('mode', 'MIX'), ('merge_type', 'AUTO'),), "Merge Nodes (Automatic)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_PLUS', True, False, False,
        (('mode', 'ADD'), ('merge_type', 'AUTO'),), "Merge Nodes (Add)"),
    (NWMergeNodes.bl_idname, 'EQUAL', True, False, False,
        (('mode', 'ADD'), ('merge_type', 'AUTO'),), "Merge Nodes (Add)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_ASTERIX', True, False, False,
        (('mode', 'MULTIPLY'), ('merge_type', 'AUTO'),), "Merge Nodes (Multiply)"),
    (NWMergeNodes.bl_idname, 'EIGHT', True, False, False,
        (('mode', 'MULTIPLY'), ('merge_type', 'AUTO'),), "Merge Nodes (Multiply)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_MINUS', True, False, False,
        (('mode', 'SUBTRACT'), ('merge_type', 'AUTO'),), "Merge Nodes (Subtract)"),
    (NWMergeNodes.bl_idname, 'MINUS', True, False, False,
        (('mode', 'SUBTRACT'), ('merge_type', 'AUTO'),), "Merge Nodes (Subtract)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_SLASH', True, False, False,
        (('mode', 'DIVIDE'), ('merge_type', 'AUTO'),), "Merge Nodes (Divide)"),
    (NWMergeNodes.bl_idname, 'SLASH', True, False, False,
        (('mode', 'DIVIDE'), ('merge_type', 'AUTO'),), "Merge Nodes (Divide)"),
    (NWMergeNodes.bl_idname, 'COMMA', True, False, False,
        (('mode', 'LESS_THAN'), ('merge_type', 'MATH'),), "Merge Nodes (Less than)"),
    (NWMergeNodes.bl_idname, 'PERIOD', True, False, False,
        (('mode', 'GREATER_THAN'), ('merge_type', 'MATH'),), "Merge Nodes (Greater than)"),
    # NWMergeNodes with Ctrl Alt (MIX)
    (NWMergeNodes.bl_idname, 'NUMPAD_0', True, False, True,
        (('mode', 'MIX'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Mix)"),
    (NWMergeNodes.bl_idname, 'ZERO', True, False, True,
        (('mode', 'MIX'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Mix)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_PLUS', True, False, True,
        (('mode', 'ADD'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Add)"),
    (NWMergeNodes.bl_idname, 'EQUAL', True, False, True,
        (('mode', 'ADD'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Add)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_ASTERIX', True, False, True,
        (('mode', 'MULTIPLY'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Multiply)"),
    (NWMergeNodes.bl_idname, 'EIGHT', True, False, True,
        (('mode', 'MULTIPLY'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Multiply)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_MINUS', True, False, True,
        (('mode', 'SUBTRACT'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Subtract)"),
    (NWMergeNodes.bl_idname, 'MINUS', True, False, True,
        (('mode', 'SUBTRACT'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Subtract)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_SLASH', True, False, True,
        (('mode', 'DIVIDE'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Divide)"),
    (NWMergeNodes.bl_idname, 'SLASH', True, False, True,
        (('mode', 'DIVIDE'), ('merge_type', 'MIX'),), "Merge Nodes (Color, Divide)"),
    # NWMergeNodes with Ctrl Shift (MATH)
    (NWMergeNodes.bl_idname, 'NUMPAD_PLUS', True, True, False,
        (('mode', 'ADD'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Add)"),
    (NWMergeNodes.bl_idname, 'EQUAL', True, True, False,
        (('mode', 'ADD'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Add)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_ASTERIX', True, True, False,
        (('mode', 'MULTIPLY'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Multiply)"),
    (NWMergeNodes.bl_idname, 'EIGHT', True, True, False,
        (('mode', 'MULTIPLY'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Multiply)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_MINUS', True, True, False,
        (('mode', 'SUBTRACT'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Subtract)"),
    (NWMergeNodes.bl_idname, 'MINUS', True, True, False,
        (('mode', 'SUBTRACT'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Subtract)"),
    (NWMergeNodes.bl_idname, 'NUMPAD_SLASH', True, True, False,
        (('mode', 'DIVIDE'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Divide)"),
    (NWMergeNodes.bl_idname, 'SLASH', True, True, False,
        (('mode', 'DIVIDE'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Divide)"),
    (NWMergeNodes.bl_idname, 'COMMA', True, True, False,
        (('mode', 'LESS_THAN'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Less than)"),
    (NWMergeNodes.bl_idname, 'PERIOD', True, True, False,
        (('mode', 'GREATER_THAN'), ('merge_type', 'MATH'),), "Merge Nodes (Math, Greater than)"),
    # BATCH CHANGE NODES
    # NWBatchChangeNodes with Alt
    (NWBatchChangeNodes.bl_idname, 'NUMPAD_0', False, False, True,
        (('blend_type', 'MIX'), ('operation', 'CURRENT'),), "Batch change blend type (Mix)"),
    (NWBatchChangeNodes.bl_idname, 'ZERO', False, False, True,
        (('blend_type', 'MIX'), ('operation', 'CURRENT'),), "Batch change blend type (Mix)"),
    (NWBatchChangeNodes.bl_idname, 'NUMPAD_PLUS', False, False, True,
        (('blend_type', 'ADD'), ('operation', 'ADD'),), "Batch change blend type (Add)"),
    (NWBatchChangeNodes.bl_idname, 'EQUAL', False, False, True,
        (('blend_type', 'ADD'), ('operation', 'ADD'),), "Batch change blend type (Add)"),
    (NWBatchChangeNodes.bl_idname, 'NUMPAD_ASTERIX', False, False, True,
        (('blend_type', 'MULTIPLY'), ('operation', 'MULTIPLY'),), "Batch change blend type (Multiply)"),
    (NWBatchChangeNodes.bl_idname, 'EIGHT', False, False, True,
        (('blend_type', 'MULTIPLY'), ('operation', 'MULTIPLY'),), "Batch change blend type (Multiply)"),
    (NWBatchChangeNodes.bl_idname, 'NUMPAD_MINUS', False, False, True,
        (('blend_type', 'SUBTRACT'), ('operation', 'SUBTRACT'),), "Batch change blend type (Subtract)"),
    (NWBatchChangeNodes.bl_idname, 'MINUS', False, False, True,
        (('blend_type', 'SUBTRACT'), ('operation', 'SUBTRACT'),), "Batch change blend type (Subtract)"),
    (NWBatchChangeNodes.bl_idname, 'NUMPAD_SLASH', False, False, True,
        (('blend_type', 'DIVIDE'), ('operation', 'DIVIDE'),), "Batch change blend type (Divide)"),
    (NWBatchChangeNodes.bl_idname, 'SLASH', False, False, True,
        (('blend_type', 'DIVIDE'), ('operation', 'DIVIDE'),), "Batch change blend type (Divide)"),
    (NWBatchChangeNodes.bl_idname, 'COMMA', False, False, True,
        (('blend_type', 'CURRENT'), ('operation', 'LESS_THAN'),), "Batch change blend type (Current)"),
    (NWBatchChangeNodes.bl_idname, 'PERIOD', False, False, True,
        (('blend_type', 'CURRENT'), ('operation', 'GREATER_THAN'),), "Batch change blend type (Current)"),
    (NWBatchChangeNodes.bl_idname, 'DOWN_ARROW', False, False, True,
        (('blend_type', 'NEXT'), ('operation', 'NEXT'),), "Batch change blend type (Next)"),
    (NWBatchChangeNodes.bl_idname, 'UP_ARROW', False, False, True,
        (('blend_type', 'PREV'), ('operation', 'PREV'),), "Batch change blend type (Previous)"),
    # LINK ACTIVE TO SELECTED
    # Don't use names, don't replace links (K)
    (NWLinkActiveToSelected.bl_idname, 'K', False, False, False,
        (('replace', False), ('use_node_name', False), ('use_outputs_names', False),), "Link active to selected (Don't replace links)"),
    # Don't use names, replace links (Shift K)
    (NWLinkActiveToSelected.bl_idname, 'K', False, True, False,
        (('replace', True), ('use_node_name', False), ('use_outputs_names', False),), "Link active to selected (Replace links)"),
    # Use node name, don't replace links (')
    (NWLinkActiveToSelected.bl_idname, 'QUOTE', False, False, False,
        (('replace', False), ('use_node_name', True), ('use_outputs_names', False),), "Link active to selected (Don't replace links, node names)"),
    # Use node name, replace links (Shift ')
    (NWLinkActiveToSelected.bl_idname, 'QUOTE', False, True, False,
        (('replace', True), ('use_node_name', True), ('use_outputs_names', False),), "Link active to selected (Replace links, node names)"),
    # Don't use names, don't replace links (;)
    (NWLinkActiveToSelected.bl_idname, 'SEMI_COLON', False, False, False,
        (('replace', False), ('use_node_name', False), ('use_outputs_names', True),), "Link active to selected (Don't replace links, output names)"),
    # Don't use names, replace links (')
    (NWLinkActiveToSelected.bl_idname, 'SEMI_COLON', False, True, False,
        (('replace', True), ('use_node_name', False), ('use_outputs_names', True),), "Link active to selected (Replace links, output names)"),
    # CHANGE MIX FACTOR
    (NWChangeMixFactor.bl_idname, 'LEFT_ARROW', False, False, True, (('option', -0.1),), "Reduce Mix Factor by 0.1"),
    (NWChangeMixFactor.bl_idname, 'RIGHT_ARROW', False, False, True, (('option', 0.1),), "Increase Mix Factor by 0.1"),
    (NWChangeMixFactor.bl_idname, 'LEFT_ARROW', False, True, True, (('option', -0.01),), "Reduce Mix Factor by 0.01"),
    (NWChangeMixFactor.bl_idname, 'RIGHT_ARROW', False, True, True, (('option', 0.01),), "Increase Mix Factor by 0.01"),
    (NWChangeMixFactor.bl_idname, 'LEFT_ARROW', True, True, True, (('option', 0.0),), "Set Mix Factor to 0.0"),
    (NWChangeMixFactor.bl_idname, 'RIGHT_ARROW', True, True, True, (('option', 1.0),), "Set Mix Factor to 1.0"),
    (NWChangeMixFactor.bl_idname, 'NUMPAD_0', True, True, True, (('option', 0.0),), "Set Mix Factor to 0.0"),
    (NWChangeMixFactor.bl_idname, 'ZERO', True, True, True, (('option', 0.0),), "Set Mix Factor to 0.0"),
    (NWChangeMixFactor.bl_idname, 'NUMPAD_1', True, True, True, (('option', 1.0),), "Mix Factor to 1.0"),
    (NWChangeMixFactor.bl_idname, 'ONE', True, True, True, (('option', 1.0),), "Set Mix Factor to 1.0"),
    # CLEAR LABEL (Alt L)
    (NWClearLabel.bl_idname, 'L', False, False, True, (('option', False),), "Clear node labels"),
    # MODIFY LABEL (Alt Shift L)
    (NWModifyLabels.bl_idname, 'L', False, True, True, None, "Modify node labels"),
    # Copy Label from active to selected
    (NWCopyLabel.bl_idname, 'V', False, True, False, (('option', 'FROM_ACTIVE'),), "Copy label from active to selected"),
    # DETACH OUTPUTS (Alt Shift D)
    (NWDetachOutputs.bl_idname, 'D', False, True, True, None, "Detach outputs"),
    # LINK TO OUTPUT NODE (O)
    (NWLinkToOutputNode.bl_idname, 'O', False, False, False, None, "Link to output node"),
    # SELECT PARENT/CHILDREN
    # Select Children
    (NWSelectParentChildren.bl_idname, 'RIGHT_BRACKET', False, False, False, (('option', 'CHILD'),), "Select children"),
    # Select Parent
    (NWSelectParentChildren.bl_idname, 'LEFT_BRACKET', False, False, False, (('option', 'PARENT'),), "Select Parent"),
    # Add Texture Setup
    (NWAddTextureSetup.bl_idname, 'T', True, False, False, None, "Add texture setup"),
    # Reset backdrop
    (NWResetBG.bl_idname, 'Z', False, False, False, None, "Reset backdrop image zoom"),
    # Delete unused
    (NWDeleteUnused.bl_idname, 'X', False, False, True, None, "Delete unused nodes"),
    # Frame Seleted
    (NWFrameSelected.bl_idname, 'P', False, True, False, None, "Frame selected nodes"),
    # Swap Outputs
    (NWSwapOutputs.bl_idname, 'S', False, False, True, None, "Swap Outputs"),
    # Emission Viewer
    (NWEmissionViewer.bl_idname, 'LEFTMOUSE', True, True, False, None, "Connect to Cycles Viewer node"),
    # Reload Images
    (NWReloadImages.bl_idname, 'R', False, False, True, None, "Reload images"),
    # Lazy Mix
    (NWLazyMix.bl_idname, 'RIGHTMOUSE', False, False, True, None, "Lazy Mix"),
    # Lazy Connect
    (NWLazyConnect.bl_idname, 'RIGHTMOUSE', True, False, False, None, "Lazy Connect"),
    # Lazy Connect with Menu
    (NWLazyConnect.bl_idname, 'RIGHTMOUSE', True, True, False, (('with_menu', True),), "Lazy Connect with Socket Menu"),
    # MENUS
    ('wm.call_menu', 'SPACE', True, False, False, (('name', NodeWranglerMenu.bl_idname),), "Node Wranger menu"),
    ('wm.call_menu', 'SLASH', False, False, False, (('name', NWAddReroutesMenu.bl_idname),), "Add Reroutes menu"),
    ('wm.call_menu', 'NUMPAD_SLASH', False, False, False, (('name', NWAddReroutesMenu.bl_idname),), "Add Reroutes menu"),
    ('wm.call_menu', 'EQUAL', False, True, False, (('name', NWNodeAlignMenu.bl_idname),), "Node alignment menu"),
    ('wm.call_menu', 'BACK_SLASH', False, False, False, (('name', NWLinkActiveToSelectedMenu.bl_idname),), "Link active to selected (menu)"),
    ('wm.call_menu', 'C', False, True, False, (('name', NWCopyToSelectedMenu.bl_idname),), "Copy to selected (menu)"),
    ('wm.call_menu', 'S', False, True, False, (('name', NWSwitchNodeTypeMenu.bl_idname),), "Switch node type menu"),
)


def register():
    # props
    bpy.types.Scene.NWBusyDrawing = StringProperty(
        name="Busy Drawing!",
        default="",
        description="An internal property used to store only the first mouse position")
    bpy.types.Scene.NWLazySource = StringProperty(
        name="Lazy Source!",
        default="x",
        description="An internal property used to store the first node in a Lazy Connect operation")
    bpy.types.Scene.NWLazyTarget = StringProperty(
        name="Lazy Target!",
        default="x",
        description="An internal property used to store the last node in a Lazy Connect operation")
    bpy.types.Scene.NWSourceSocket = IntProperty(
        name="Source Socket!",
        default=0,
        description="An internal property used to store the source socket in a Lazy Connect operation")

    bpy.utils.register_module(__name__)

    # keymaps
    km = bpy.context.window_manager.keyconfigs.addon.keymaps.new(name='Node Editor', space_type="NODE_EDITOR")
    for (identifier, key, CTRL, SHIFT, ALT, props, nicename) in kmi_defs:
        kmi = km.keymap_items.new(identifier, key, 'PRESS', ctrl=CTRL, shift=SHIFT, alt=ALT)
        if props:
            for prop, value in props:
                setattr(kmi.properties, prop, value)
        addon_keymaps.append((km, kmi))

    # menu items
    bpy.types.NODE_MT_select.append(select_parent_children_buttons)
    bpy.types.NODE_MT_category_SH_NEW_INPUT.prepend(attr_nodes_menu_func)
    bpy.types.NODE_PT_category_SH_NEW_INPUT.prepend(attr_nodes_menu_func)
    bpy.types.NODE_PT_backdrop.append(bgreset_menu_func)


def unregister():
    # props
    del bpy.types.Scene.NWBusyDrawing
    del bpy.types.Scene.NWLazySource
    del bpy.types.Scene.NWLazyTarget
    del bpy.types.Scene.NWSourceSocket

    bpy.utils.unregister_module(__name__)

    # keymaps
    for km, kmi in addon_keymaps:
        km.keymap_items.remove(kmi)
    addon_keymaps.clear()

    # menuitems
    bpy.types.NODE_MT_select.remove(select_parent_children_buttons)
    bpy.types.NODE_MT_category_SH_NEW_INPUT.remove(attr_nodes_menu_func)
    bpy.types.NODE_PT_category_SH_NEW_INPUT.remove(attr_nodes_menu_func)
    bpy.types.NODE_PT_backdrop.remove(bgreset_menu_func)

if __name__ == "__main__":
    register()