treat streets:streetlamp_basic_top_* as a type of post

as far as sign placement is concerned.

api.lua

@@ -434,14 +434,38 @@ local function set_obj_text(obj, text, x, pos)
 	})
 end
 
-signs_lib.construct_sign = function(pos)
+local function make_widefont_nodename(name)
-	local meta = minetest.get_meta(pos)
+	if string.find(name, "_widefont") then return name end
-	meta:set_string(
+	if string.find(name, "_onpole")  then
-		"formspec",
+		return string.gsub(name, "_onpole", "_widefont_onpole")
-		"size[6,4]"..
+	elseif string.find(name, "_hanging") then
+		return string.gsub(name, "_hanging", "_widefont_hanging")
+	else
+		return name.."_widefont"
+	end
+end
+
+function signs_lib.construct_sign(pos)
+	local form = "size[6,4]"..
 		"textarea[0,-0.3;6.5,3;text;;${text}]"..
-		"button_exit[2,3.4;2,1;ok;"..S("Write").."]"..
+		"background[-0.5,-0.5;7,5;signs_lib_sign_bg.jpg]"
-		"background[-0.5,-0.5;7,5;signs_lib_sign_bg.jpg]")
+	local node = minetest.get_node(pos)
+	local wname = make_widefont_nodename(node.name)
+
+	if minetest.registered_items[wname] then
+		local state = "off"
+		if string.find(node.name, "widefont") then state = "on" end
+		form = form.."label[1,3.4;Use wide font]"..
+			"image_button[1.1,3.7;1,0.6;signs_lib_switch_"..
+			state..".png;"..
+			state..";;;false;signs_lib_switch_interm.png]"..
+			"button_exit[3,3.4;2,1;ok;"..S("Write").."]"
+	else
+		form = form.."button_exit[2,3.4;2,1;ok;"..S("Write").."]"
+	end
+
+	local meta = minetest.get_meta(pos)
+	meta:set_string("formspec", form)
 	local i = meta:get_string("infotext")
 	if i == "" then -- it wasn't even set, so set it.
 		meta:set_string("infotext", "")
@@ -512,13 +536,36 @@ function signs_lib.update_sign(pos, fields)
 end
 
 function signs_lib.receive_fields(pos, formname, fields, sender)
-	if fields and fields.text and fields.ok and signs_lib.can_modify(pos, sender) then
+
+	if not fields or not signs_lib.can_modify(pos, sender) then return end
+
+	if fields.text and fields.ok then
 		minetest.log("action", S("@1 wrote \"@2\" to sign at @3",
 			(sender:get_player_name() or ""),
 			fields.text:gsub('\\', '\\\\'):gsub("\n", "\\n"),
 			minetest.pos_to_string(pos)
 		))
 		signs_lib.update_sign(pos, fields)
+	elseif fields.on or fields.off then
+		local node = minetest.get_node(pos)
+		local newname
+
+		if fields.on and string.find(node.name, "widefont") then
+			newname = string.gsub(node.name, "_widefont", "")
+		elseif fields.off and not string.find(node.name, "widefont") then
+			newname = make_widefont_nodename(node.name)
+		end
+		if newname then
+			minetest.log("action", S("@1 flipped the wide-font switch to \"@2\" at @3",
+				(sender:get_player_name() or ""),
+				(fields.on and "off" or "on"),
+				minetest.pos_to_string(pos)
+			))
+
+			minetest.swap_node(pos, {name = newname, param2 = node.param2})
+			signs_lib.construct_sign(pos)
+			signs_lib.update_sign(pos, fields)
+		end
 	end
 end
 
@@ -602,6 +649,7 @@ function signs_lib.check_for_pole(pos, pointed_thing)
 		  or string.find(pnode.name, "default:fence_")
 		  or string.find(pnode.name, "_post")
 		  or string.find(pnode.name, "fencepost")
+		  or string.find(pnode.name, "streets:streetlamp_basic_top")
 		  or (pnode.name == "streets:bigpole" and pnode.param2 < 4)
 		  or (pnode.name == "streets:bigpole" and pnode.param2 > 19 and pnode.param2 < 24)
 		)
@@ -611,7 +659,16 @@ function signs_lib.check_for_pole(pos, pointed_thing)
 	end
 end
 
+function signs_lib.check_for_ceiling(pointed_thing)
+	if pointed_thing.above.x == pointed_thing.under.x
+	  and pointed_thing.above.z == pointed_thing.under.z
+	  and pointed_thing.above.y < pointed_thing.under.y then
+		return true
+	end
+end
+
 function signs_lib.after_place_node(pos, placer, itemstack, pointed_thing, locked)
+	print("after_place_node")
 	local playername = placer:get_player_name()
 	local def = minetest.registered_items[itemstack:get_name()]
 
@@ -622,6 +679,10 @@ function signs_lib.after_place_node(pos, placer, itemstack, pointed_thing, locke
 	if (def.allow_onpole ~= false) and signs_lib.check_for_pole(pos, pointed_thing) then
 		local node = minetest.get_node(pos)
 		minetest.swap_node(pos, {name = itemstack:get_name().."_onpole", param2 = node.param2})
+	elseif def.allow_hanging and signs_lib.check_for_ceiling(pointed_thing) then
+		local newparam2 = minetest.dir_to_facedir(placer:get_look_dir())
+		local node = minetest.get_node(pos)
+		minetest.swap_node(pos, {name = itemstack:get_name().."_hanging", param2 = newparam2})
 	end
 	if locked then
 		local meta = minetest.get_meta(pos)
@@ -634,6 +695,141 @@ function signs_lib.register_fence_with_sign()
 	minetest.log("warning", "[signs_lib] ".."Attempt to call no longer used function signs_lib.register_fence_with_sign()")
 end
 
+local function register_sign(name, rdef)
+	local def = table.copy(rdef)
+
+	if rdef.entity_info == "standard" then
+		def.entity_info = {
+			mesh = "signs_lib_standard_wall_sign_entity.obj",
+			yaw = signs_lib.wallmounted_yaw
+		}
+	elseif rdef.entity_info then
+		def.entity_info = rdef.entity_info
+	end
+
+	def.after_place_node = rdef.after_place_node or signs_lib.after_place_node
+
+	if rdef.entity_info then
+		def.on_rightclick       = rdef.on_rightclick       or signs_lib.construct_sign
+		def.on_construct        = rdef.on_construct        or signs_lib.construct_sign
+		def.on_destruct         = rdef.on_destruct         or signs_lib.destruct_sign
+		def.on_receive_fields   = rdef.on_receive_fields   or signs_lib.receive_fields
+		def.on_punch            = rdef.on_punch            or signs_lib.update_sign
+		def.number_of_lines     = rdef.number_of_lines     or signs_lib.standard_lines
+		def.horiz_scaling       = rdef.horiz_scaling       or signs_lib.standard_hscale
+		def.vert_scaling        = rdef.vert_scaling        or signs_lib.standard_vscale
+		def.line_spacing        = rdef.line_spacing        or signs_lib.standard_lspace
+		def.font_size           = rdef.font_size           or signs_lib.standard_fsize
+		def.x_offset            = rdef.x_offset            or signs_lib.standard_xoffs
+		def.y_offset            = rdef.y_offset            or signs_lib.standard_yoffs
+		def.chars_per_line      = rdef.chars_per_line      or signs_lib.standard_cpl
+		def.default_color       = rdef.default_color       or "0"
+		if rdef.locked and not rdef.after_place_node then
+			def.after_place_node = function(pos, placer, itemstack, pointed_thing)
+				signs_lib.after_place_node(pos, placer, itemstack, pointed_thing, true)
+			end
+		end
+	end
+
+	def.paramtype           = rdef.paramtype           or "light"
+	def.drawtype            = rdef.drawtype            or "mesh"
+	def.mesh                = rdef.mesh                or "signs_lib_standard_wall_sign.obj"
+	def.wield_image         = rdef.wield_image         or def.inventory_image
+	def.drop                = rdef.drop                or name
+	def.sounds              = rdef.sounds              or signs_lib.standard_wood_sign_sounds
+	def.on_rotate           = rdef.on_rotate           or signs_lib.wallmounted_rotate
+	def.paramtype2          = rdef.paramtype2          or "wallmounted"
+
+	if rdef.on_rotate then
+		def.on_rotate = rdef.on_rotate
+	elseif rdef.drawtype == "wallmounted" then
+		def.on_rotate = signs_lib.wallmounted_rotate
+	else
+		def.on_rotate = signs_lib.facedir_rotate
+	end
+
+	if rdef.groups then
+		def.groups = rdef.groups
+	else
+		def.groups = signs_lib.standard_wood_groups
+	end
+
+	local cbox = signs_lib.make_selection_boxes(35, 25, allow_onpole)
+
+	def.selection_box = rdef.selection_box or cbox
+	def.node_box      = table.copy(rdef.node_box or rdef.selection_box or cbox)
+
+	if def.sunlight_propagates ~= false then
+		def.sunlight_propagates = true
+	end
+
+	minetest.register_node(":"..name, def)
+	table.insert(signs_lib.lbm_restore_nodes, name)
+
+	if rdef.allow_onpole ~= false then
+
+		local opdef = table.copy(def)
+
+		local offset = 0.3125
+		if opdef.uses_slim_pole_mount then
+			offset = 0.35
+		end
+
+		opdef.selection_box = rdef.onpole_selection_box or opdef.selection_box
+		opdef.node_box = rdef.onpole_node_box or opdef.selection_box
+
+		if opdef.paramtype2 == "wallmounted" then
+			opdef.node_box.wall_side[1] = def.node_box.wall_side[1] - offset
+			opdef.node_box.wall_side[4] = def.node_box.wall_side[4] - offset
+
+			opdef.selection_box.wall_side[1] = def.selection_box.wall_side[1] - offset
+			opdef.selection_box.wall_side[4] = def.selection_box.wall_side[4] - offset
+		else
+			opdef.node_box.fixed[3] = def.node_box.fixed[3] + offset
+			opdef.node_box.fixed[6] = def.node_box.fixed[6] + offset
+
+			opdef.selection_box.fixed[3] = def.selection_box.fixed[3] + offset
+			opdef.selection_box.fixed[6] = def.selection_box.fixed[6] + offset
+		end
+
+		opdef.groups.not_in_creative_inventory = 1
+		opdef.tiles[3] = "signs_lib_pole_mount.png"
+		opdef.mesh = string.gsub(opdef.mesh, ".obj$", "_onpole.obj")
+		opdef.on_rotate = nil
+
+
+		if opdef.entity_info then
+			opdef.entity_info.mesh = string.gsub(opdef.entity_info.mesh, ".obj$", "_onpole.obj")
+		end
+		minetest.register_node(":"..name.."_onpole", opdef)
+		table.insert(signs_lib.lbm_restore_nodes, name.."_onpole")
+	end
+
+	if rdef.allow_hanging then
+
+		local hdef = table.copy(def)
+		hdef.paramtype2 = "facedir"
+
+		local hcbox = signs_lib.make_selection_boxes(35, 32, false, 0, 3, -18.5, true)
+
+		hdef.selection_box = rdef.hanging_selection_box or hcbox
+		hdef.node_box = rdef.hanging_node_box or rdef.hanging_selection_box or hcbox
+
+		hdef.groups.not_in_creative_inventory = 1
+		hdef.tiles[3] = "signs_lib_hangers.png"
+		hdef.mesh = string.gsub(string.gsub(hdef.mesh, "_facedir.obj", ".obj"), ".obj$", "_hanging.obj")
+		hdef.on_rotate = nil
+
+		if hdef.entity_info then
+			hdef.entity_info.mesh = string.gsub(string.gsub(hdef.entity_info.mesh, "_facedir.obj", ".obj"), ".obj$", "_hanging.obj")
+			hdef.entity_info.yaw = signs_lib.standard_yaw
+		end
+
+		minetest.register_node(":"..name.."_hanging", hdef)
+		table.insert(signs_lib.lbm_restore_nodes, name.."_hanging")
+	end
+end
+
 --[[
 The main sign registration function
 ===================================
@@ -674,111 +870,15 @@ signs_lib.register_sign("foo:my_cool_sign", {
 ]]--
 
 function signs_lib.register_sign(name, rdef)
+	register_sign(name, rdef)
 
-	local def = table.copy(rdef)
+	if rdef.allow_widefont then
 
-	if rdef.entity_info == "standard" then
+		wdef = table.copy(minetest.registered_items[name])
-		def.entity_info = {
+		wdef.groups.not_in_creative_inventory = 1
-			mesh = "signs_lib_standard_wall_sign_entity.obj",
+		wdef.horiz_scaling = wdef.horiz_scaling / 2
-			yaw = signs_lib.wallmounted_yaw
-		}
-	elseif rdef.entity_info then
-		def.entity_info = rdef.entity_info
-	end
 
-	if rdef.entity_info then
+		register_sign(name.."_widefont", wdef)
-		def.on_rightclick       = rdef.on_rightclick       or signs_lib.construct_sign
-		def.on_construct        = rdef.on_construct        or signs_lib.construct_sign
-		def.on_destruct         = rdef.on_destruct         or signs_lib.destruct_sign
-		def.on_receive_fields   = rdef.on_receive_fields   or signs_lib.receive_fields
-		def.on_punch            = rdef.on_punch            or signs_lib.update_sign
-		def.number_of_lines     = rdef.number_of_lines     or signs_lib.standard_lines
-		def.horiz_scaling       = rdef.horiz_scaling       or signs_lib.standard_hscale
-		def.vert_scaling        = rdef.vert_scaling        or signs_lib.standard_vscale
-		def.line_spacing        = rdef.line_spacing        or signs_lib.standard_lspace
-		def.font_size           = rdef.font_size           or signs_lib.standard_fsize
-		def.x_offset            = rdef.x_offset            or signs_lib.standard_xoffs
-		def.y_offset            = rdef.y_offset            or signs_lib.standard_yoffs
-		def.chars_per_line      = rdef.chars_per_line      or signs_lib.standard_cpl
-		def.default_color       = rdef.default_color       or "0"
-		if rdef.locked and not rdef.after_place_node then
-			def.after_place_node = function(pos, placer, itemstack, pointed_thing)
-				signs_lib.after_place_node(pos, placer, itemstack, pointed_thing, true)
-			end
-		else
-			def.after_place_node = rdef.after_place_node or signs_lib.after_place_node
-		end
-	end
-
-	def.paramtype           = rdef.paramtype           or "light"
-	def.paramtype2          = rdef.paramtype2          or "wallmounted"
-	def.drawtype            = rdef.drawtype            or "mesh"
-	def.mesh                = rdef.mesh                or "signs_lib_standard_wall_sign.obj"
-	def.wield_image         = rdef.wield_image         or def.inventory_image
-	def.drop                = rdef.drop                or name
-	def.sounds              = rdef.sounds              or signs_lib.standard_wood_sign_sounds
-	def.on_rotate           = rdef.on_rotate           or signs_lib.wallmounted_rotate
-
-	if rdef.on_rotate then
-		def.on_rotate = rdef.on_rotate
-	elseif rdef.drawtype == "wallmounted" then
-		def.on_rotate = signs_lib.wallmounted_rotate
-	else
-		def.on_rotate = signs_lib.facedir_rotate
-	end
-
-	if rdef.groups then
-		def.groups = rdef.groups
-	else
-		def.groups = signs_lib.standard_wood_groups
-	end
-
-	local cbox = signs_lib.make_selection_boxes(35, 25, allow_onpole)
-
-	def.selection_box = rdef.selection_box or cbox
-	def.node_box      = table.copy(rdef.node_box or rdef.selection_box or cbox)
-
-	if def.sunlight_propagates ~= false then
-		def.sunlight_propagates = true
-	end
-
-	minetest.register_node(":"..name, def)
-	table.insert(signs_lib.lbm_restore_nodes, name)
-
-	if rdef.allow_onpole ~= false then
-
-		local opdef = table.copy(def)
-
-		local offset = 0.3125
-		if opdef.uses_slim_pole_mount then
-			offset = 0.35
-		end
-
-		if opdef.paramtype2 == "wallmounted" then
-			opdef.node_box.wall_side[1] = def.node_box.wall_side[1] - offset
-			opdef.node_box.wall_side[4] = def.node_box.wall_side[4] - offset
-
-			opdef.selection_box.wall_side[1] = def.selection_box.wall_side[1] - offset
-			opdef.selection_box.wall_side[4] = def.selection_box.wall_side[4] - offset
-		else
-			opdef.node_box.fixed[3] = def.node_box.fixed[3] + offset
-			opdef.node_box.fixed[6] = def.node_box.fixed[6] + offset
-
-			opdef.selection_box.fixed[3] = def.selection_box.fixed[3] + offset
-			opdef.selection_box.fixed[6] = def.selection_box.fixed[6] + offset
-		end
-
-		opdef.groups.not_in_creative_inventory = 1
-		opdef.tiles[3] = "signs_lib_pole_mount.png"
-		opdef.mesh = string.gsub(opdef.mesh, ".obj$", "_onpole.obj")
-		opdef.on_rotate = nil
-
-
-		if opdef.entity_info then
-			opdef.entity_info.mesh = string.gsub(opdef.entity_info.mesh, ".obj$", "_onpole.obj")
-		end
-		minetest.register_node(":"..name.."_onpole", opdef)
-		table.insert(signs_lib.lbm_restore_nodes, name.."_onpole")
 	end
 end
 

models/signs_lib_standard_wall_sign_entity_hanging.obj

@@ -0,0 +1,15 @@
+# Blender v2.79 (sub 0) OBJ File: 'basic_signs wooden hanging sign.blend'
+# www.blender.org
+o Plane
+v 0.406250 -0.281250 -0.042969
+v -0.406250 -0.281250 -0.042969
+v 0.406250 0.281250 -0.042969
+v -0.406250 0.281250 -0.042969
+vt 0.000000 0.000000
+vt 1.000000 0.000000
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vn 0.0000 -0.0000 -1.0000
+g Plane_Plane_None
+s off
+f 1/1/1 2/2/1 4/3/1 3/4/1

models/signs_lib_standard_wall_sign_hanging.obj

@@ -0,0 +1,62 @@
+# Blender v2.79 (sub 0) OBJ File: 'basic_signs wooden hanging sign.blend'
+# www.blender.org
+o Cube
+v 0.437500 -0.312500 0.031250
+v 0.437500 -0.312500 -0.031250
+v 0.437500 0.312500 0.031250
+v 0.437500 0.312500 -0.031250
+v -0.437500 -0.312500 0.031250
+v -0.437500 -0.312500 -0.031250
+v -0.437500 0.312500 0.031250
+v -0.437500 0.312500 -0.031250
+v 0.437500 -0.312500 0.031250
+v 0.437500 -0.312500 -0.031250
+v 0.437500 0.312500 0.031250
+v 0.437500 0.312500 -0.031250
+v -0.437500 -0.312500 0.031250
+v -0.437500 -0.312500 -0.031250
+v -0.437500 0.312500 0.031250
+v -0.437500 0.312500 -0.031250
+v 0.500000 0.312500 -0.000000
+v 0.500000 0.500000 0.000000
+v -0.500000 0.312500 -0.000000
+v -0.500000 0.500000 0.000000
+vt 0.468750 0.812500
+vt 0.031250 0.812500
+vt 0.031250 0.187500
+vt 0.468750 0.187500
+vt 0.531250 0.812500
+vt 0.968750 0.812500
+vt 0.968750 0.187500
+vt 0.531250 0.187500
+vt 0.234375 0.000000
+vt 0.234375 1.000000
+vt 0.015625 1.000000
+vt 0.015625 -0.000000
+vt 0.609375 -0.000000
+vt 0.609375 1.000000
+vt 0.390625 1.000000
+vt 0.390625 -0.000000
+vt 0.765625 0.000000
+vt 0.765625 1.000000
+vt 1.000000 0.812500
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vt -0.000000 0.812500
+vn 0.0000 0.0000 -1.0000
+vn 0.0000 -0.0000 1.0000
+vn 0.0000 -1.0000 0.0000
+vn 0.0000 1.0000 0.0000
+vn 1.0000 -0.0000 0.0000
+vn -1.0000 -0.0000 0.0000
+g Cube_Cube_front-back
+s off
+f 8/1/1 4/2/1 2/3/1 6/4/1
+f 3/5/2 7/6/2 5/7/2 1/8/2
+g Cube_Cube_edges
+f 13/9/3 14/10/3 10/11/3 9/12/3
+f 11/13/4 12/14/4 16/15/4 15/16/4
+f 11/13/5 9/17/5 10/18/5 12/14/5
+f 13/9/6 15/16/6 16/15/6 14/10/6
+g Cube_Cube_hangers
+f 19/19/1 20/20/1 18/21/1 17/22/1

standard_signs.lua

@@ -7,7 +7,9 @@ signs_lib.register_sign("default:sign_wall_wood", {
 		"signs_lib_sign_wall_wooden.png",
 		"signs_lib_sign_wall_wooden_edges.png",
 	},
-	entity_info = "standard"
+	entity_info = "standard",
+	allow_hanging = true,
+	allow_widefont = true
 })
 
 signs_lib.register_sign("default:sign_wall_steel", {
@@ -20,9 +22,17 @@ signs_lib.register_sign("default:sign_wall_steel", {
 	groups = signs_lib.standard_steel_groups,
 	sounds = signs_lib.standard_steel_sign_sounds,
 	locked = true,
-	entity_info = "standard"
+	entity_info = "standard",
+	allow_hanging = true,
+	allow_widefont = true
 })
 
+minetest.register_alias("signs:sign_hanging", "default:sign_wall_wood_hanging")
+minetest.register_alias("basic_signs:hanging_sign", "default:sign_wall_wood_hanging")
+
+table.insert(signs_lib.lbm_restore_nodes, "signs:sign_hanging")
+table.insert(signs_lib.lbm_restore_nodes, "basic_signs:hanging_sign")
+
 -- insert the old wood sign-on-fencepost into signs_lib's conversion LBM
 
 table.insert(signs_lib.old_fenceposts_with_signs, "signs:sign_post")