4c52e737df
Notes: * Did not touch to addons, that's up to the authors. ;) * Did not removed any "name" field below lists. We might want to do this in some cases (less UI clutter), but probably not always, so will let maintainers of the related areas decide here.
86 lines
4.2 KiB
Python
86 lines
4.2 KiB
Python
import bpy
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class MATERIAL_UL_matslots_example(bpy.types.UIList):
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# The draw_item function is called for each item of the collection that is visible in the list.
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# data is the RNA object containing the collection,
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# item is the current drawn item of the collection,
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# icon is the "computed" icon for the item (as an integer, because some objects like materials or textures
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# have custom icons ID, which are not available as enum items).
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# active_data is the RNA object containing the active property for the collection (i.e. integer pointing to the
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# active item of the collection).
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# active_propname is the name of the active property (use 'getattr(active_data, active_propname)').
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# index is index of the current item in the collection.
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# flt_flag is the result of the filtering process for this item.
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# Note: as index and flt_flag are optional arguments, you do not have to use/declare them here if you don't
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# need them.
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def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
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ob = data
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slot = item
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ma = slot.material
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# draw_item must handle the three layout types... Usually 'DEFAULT' and 'COMPACT' can share the same code.
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if self.layout_type in {'DEFAULT', 'COMPACT'}:
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# You should always start your row layout by a label (icon + text), or a non-embossed text field,
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# this will also make the row easily selectable in the list! The later also enables ctrl-click rename.
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# We use icon_value of label, as our given icon is an integer value, not an enum ID.
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# Note "data" names should never be translated!
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if ma:
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layout.prop(ma, "name", text="", emboss=False, icon_value=icon)
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else:
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layout.label(text="", translate=False, icon_value=icon)
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# And now we can add other UI stuff...
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# Here, we add nodes info if this material uses (old!) shading nodes.
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if ma and not context.scene.render.use_shading_nodes:
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manode = ma.active_node_material
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if manode:
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# The static method UILayout.icon returns the integer value of the icon ID "computed" for the given
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# RNA object.
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layout.label(text="Node %s" % manode.name, translate=False, icon_value=layout.icon(manode))
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elif ma.use_nodes:
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layout.label(text="Node <none>", translate=False)
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else:
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layout.label(text="")
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# 'GRID' layout type should be as compact as possible (typically a single icon!).
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elif self.layout_type in {'GRID'}:
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layout.alignment = 'CENTER'
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layout.label(text="", icon_value=icon)
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# And now we can use this list everywhere in Blender. Here is a small example panel.
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class UIListPanelExample(bpy.types.Panel):
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"""Creates a Panel in the Object properties window"""
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bl_label = "UIList Panel"
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bl_idname = "OBJECT_PT_ui_list_example"
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bl_space_type = 'PROPERTIES'
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bl_region_type = 'WINDOW'
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bl_context = "object"
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def draw(self, context):
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layout = self.layout
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obj = context.object
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# template_list now takes two new args.
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# The first one is the identifier of the registered UIList to use (if you want only the default list,
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# with no custom draw code, use "UI_UL_list").
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layout.template_list("MATERIAL_UL_matslots_example", "", obj, "material_slots", obj, "active_material_index")
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# The second one can usually be left as an empty string. It's an additional ID used to distinguish lists in case you
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# use the same list several times in a given area.
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layout.template_list("MATERIAL_UL_matslots_example", "compact", obj, "material_slots",
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obj, "active_material_index", type='COMPACT')
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def register():
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bpy.utils.register_class(MATERIAL_UL_matslots_example)
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bpy.utils.register_class(UIListPanelExample)
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def unregister():
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bpy.utils.unregister_class(MATERIAL_UL_matslots_example)
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bpy.utils.unregister_class(UIListPanelExample)
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if __name__ == "__main__":
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register()
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