I want to recreate this kind of Menu UI, don't care about the color swatches in front of those. Just need a functionality to add using that plus sign, and I get a new string variable as these and can rename on double click. If you can provide a code is useful, or you can point me to theory or docs for creating the UI.
These examples are way better and much more complete than the ones you will find in the templates / documentation / blogs and can be customized to any requirement.
######################################################
The name property (string) is instantiated by default
(see the comment in the code) as part of the PropertyGroup (which stores the contents of each item) so in this case you do not have to do anything, except editing draw_item and turn the label() into a prop() call if you want it to be editable (mentioned in the code comments as well).
-split.label(text=item.name, icon=custom_icon)
+split.prop(item, "name", icon=custom_icon, emboss=False, text="")
Reduced version of the first example from here to add/remove any number of meaningless items and allow the user to edit their names.
# ##### 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 #####
bl_info = {
"name": "object-uilist-dev",
"description": "",
"author": "p2or",
"version": (0, 1),
"blender": (2, 80, 0),
"location": "Text Editor",
"warning": "", # used for warning icon and text in addons panel
"wiki_url": "",
"tracker_url": "",
"category": "Development"
}
import bpy
from bpy.props import (IntProperty,
BoolProperty,
StringProperty,
CollectionProperty)
from bpy.types import (Operator,
Panel,
PropertyGroup,
UIList)
# -------------------------------------------------------------------
# Operators
# -------------------------------------------------------------------
class CUSTOM_OT_actions(Operator):
"""Move items up and down, add and remove"""
bl_idname = "custom.list_action"
bl_label = "List Actions"
bl_description = "Move items up and down, add and remove"
bl_options = {'REGISTER'}
action: bpy.props.EnumProperty(
items=(
('UP', "Up", ""),
('DOWN', "Down", ""),
('REMOVE', "Remove", ""),
('ADD', "Add", "")))
def invoke(self, context, event):
scn = context.scene
idx = scn.custom_index
try:
item = scn.custom[idx]
except IndexError:
pass
else:
if self.action == 'DOWN' and idx < len(scn.custom) - 1:
item_next = scn.custom[idx+1].name
scn.custom.move(idx, idx+1)
scn.custom_index += 1
info = 'Item "%s" moved to position %d' % (item.name, scn.custom_index + 1)
self.report({'INFO'}, info)
elif self.action == 'UP' and idx >= 1:
item_prev = scn.custom[idx-1].name
scn.custom.move(idx, idx-1)
scn.custom_index -= 1
info = 'Item "%s" moved to position %d' % (item.name, scn.custom_index + 1)
self.report({'INFO'}, info)
elif self.action == 'REMOVE':
info = 'Item "%s" removed from list' % (scn.custom[idx].name)
scn.custom_index -= 1
scn.custom.remove(idx)
self.report({'INFO'}, info)
if self.action == 'ADD':
item = scn.custom.add()
item.name = "Your Name"
item.id = len(scn.custom)
scn.custom_index = len(scn.custom)-1
info = '"%s" added to list' % (item.name)
self.report({'INFO'}, info)
return {"FINISHED"}
class CUSTOM_OT_printItems(Operator):
"""Print all items and their properties to the console"""
bl_idname = "custom.print_items"
bl_label = "Print Items to Console"
bl_description = "Print all items and their properties to the console"
bl_options = {'REGISTER', 'UNDO'}
reverse_order: BoolProperty(
default=False,
name="Reverse Order")
@classmethod
def poll(cls, context):
return bool(context.scene.custom)
def execute(self, context):
scn = context.scene
if self.reverse_order:
for i in range(scn.custom_index, -1, -1):
item = scn.custom[i]
print ("Name:", item.name,"-", "ID:", item.id )
else:
for item in scn.custom:
print ("Name:", item.name,"-", "ID", item.id)
return{'FINISHED'}
class CUSTOM_OT_clearList(Operator):
"""Clear all items of the list"""
bl_idname = "custom.clear_list"
bl_label = "Clear List"
bl_description = "Clear all items of the list"
bl_options = {'INTERNAL'}
@classmethod
def poll(cls, context):
return bool(context.scene.custom)
def invoke(self, context, event):
return context.window_manager.invoke_confirm(self, event)
def execute(self, context):
if bool(context.scene.custom):
context.scene.custom.clear()
self.report({'INFO'}, "All items removed")
else:
self.report({'INFO'}, "Nothing to remove")
return{'FINISHED'}
# -------------------------------------------------------------------
# Drawing
# -------------------------------------------------------------------
class CUSTOM_UL_items(UIList):
def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index):
split = layout.split(factor=0.3)
split.label(text="Index: %d" % (index))
custom_icon = "COLOR"
split.prop(item, "name", icon=custom_icon, emboss=False, text="")
def invoke(self, context, event):
pass
class CUSTOM_PT_objectList(Panel):
"""Adds a custom panel to the TEXT_EDITOR"""
bl_idname = 'TEXT_PT_my_panel'
bl_space_type = "TEXT_EDITOR"
bl_region_type = "UI"
bl_label = "Custom Object List Demo"
def draw(self, context):
layout = self.layout
scn = bpy.context.scene
rows = 2
row = layout.row()
row.template_list("CUSTOM_UL_items", "", scn, "custom", scn, "custom_index", rows=rows)
col = row.column(align=True)
col.operator("custom.list_action", icon='ZOOM_IN', text="").action = 'ADD'
col.operator("custom.list_action", icon='ZOOM_OUT', text="").action = 'REMOVE'
col.separator()
col.operator("custom.list_action", icon='TRIA_UP', text="").action = 'UP'
col.operator("custom.list_action", icon='TRIA_DOWN', text="").action = 'DOWN'
row = layout.row()
col = row.column(align=True)
row = col.row(align=True)
row.operator("custom.print_items", icon="LINENUMBERS_ON") #LINENUMBERS_OFF, ANIM
row = col.row(align=True)
row.operator("custom.clear_list", icon="X")
# -------------------------------------------------------------------
# Collection
# -------------------------------------------------------------------
class CUSTOM_colorCollection(PropertyGroup):
#name: StringProperty() -> Instantiated by default
id: IntProperty()
# -------------------------------------------------------------------
# Register & Unregister
# -------------------------------------------------------------------
classes = (
CUSTOM_OT_actions,
CUSTOM_OT_printItems,
CUSTOM_OT_clearList,
CUSTOM_UL_items,
CUSTOM_PT_objectList,
CUSTOM_colorCollection,
)
def register():
from bpy.utils import register_class
for cls in classes:
register_class(cls)
# Custom scene properties
bpy.types.Scene.custom = CollectionProperty(type=CUSTOM_colorCollection)
bpy.types.Scene.custom_index = IntProperty()
def unregister():
from bpy.utils import unregister_class
for cls in reversed(classes):
unregister_class(cls)
del bpy.types.Scene.custom
del bpy.types.Scene.custom_index
if __name__ == "__main__":
register()
