Added font formspec textures

font_api/fontform.lua

@@ -0,0 +1,154 @@
+--[[
+    font_api mod for Minetest - Library to add font display capability
+    to display_api mod.
+    (c) Pierre-Yves Rollo
+
+    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 3 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, see <http://www.gnu.org/licenses/>.
+--]]
+
+local modname = minetest.get_current_modname()
+
+local contexts = {}
+
+minetest.register_on_leaveplayer(function(player)
+	if minetest.is_player(player) then
+		contexts[player:get_player_name()] = nil
+	end
+end)
+
+local function get_context(playername)
+	if not contexts[playername] then
+		contexts[playername] = { playername = playername }
+	end
+	return contexts[playername]
+end
+
+-- Show node formspec functions
+local function show_node_formspec(playername, pos)
+	local meta = minetest.get_meta(pos)
+
+	-- Decontextualize formspec
+	local fs = meta:get_string('formspec')
+
+	if not fs then
+		return
+	end
+
+	-- Change context and currrent_name references to nodemeta references
+	-- Change context and currrent_name references to nodemeta references
+	local nodemeta = string.format("nodemeta:%i,%i,%i", pos.x, pos.y ,pos.z)
+	fs = fs:gsub("current_name", nodemeta)
+	fs = fs:gsub("context", nodemeta)
+
+	-- Change all ${} to their corresponding metadata values
+	local s, e
+	repeat
+		s, e = fs:find('%${.*}')
+		if s and e then
+			fs = fs:sub(1, s-1)..
+				minetest.formspec_escape(meta:get_string(fs:sub(s+2,e-1)))..
+				fs:sub(e+1)
+		end
+	until s == nil
+
+	local context = get_context(playername)
+	context.node_pos = pos
+
+	-- Find node on_receive_fields
+	local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
+	if ndef and ndef.on_receive_fields then
+		context.on_receive_fields = ndef.on_receive_fields
+	end
+
+	-- Show formspec
+	minetest.show_formspec(playername, modname..':context_formspec', fs)
+end
+
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+	if formname ~= modname..':context_formspec' then
+		return
+	end
+
+	if not minetest.is_player(player) then
+		return true
+	end
+
+	local context = get_context(player:get_player_name())
+	if context.on_receive_fields then
+		context.on_receive_fields(context.pos, '', fields, player)
+	end
+	return true
+end)
+
+-- Specific functions
+
+local function show_font_formspec(playername)
+	local context = get_context(playername)
+	local fonts = {}
+	for name, _ in pairs(font_api.registered_fonts) do
+		fonts[#fonts+1] = name
+	end
+	table.sort(fonts)
+
+	local fs = 'size[4,'..(#fonts + 0.8)..']'
+		..default.gui_bg..default.gui_bg_img..default.gui_slots
+		..'button_exit[0,'..(#fonts)..';4,1;cancel;Cancel]'
+
+	for line = 1, #fonts do
+		local font = font_api.get_font(fonts[line])
+		fs = fs..'image[0.1,'..(line-0.9)..';4.5,0.8;'
+		..font:make_text_texture(font.name, font:get_height()*5,
+			font:get_height()*1.2, 1, "center", "top", "#fff")
+		..']button_exit[0,'..(line-1)..';4,1;font_'..font.name..';]'
+	end
+	minetest.show_formspec(context.playername, modname..':font_list', fs)
+end
+
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+	if formname ~= modname..':font_list' then
+		return
+	end
+
+	if not minetest.is_player(player) then
+		return true
+	end
+
+	local playername = player:get_player_name()
+	local context = get_context(playername)
+
+	if minetest.is_protected(context.pos, playername) then
+		return true
+	end
+
+	if fields.quit == 'true' then
+		for name, _ in pairs(font_api.registered_fonts) do
+			if fields['font_'..name] then
+				local meta = minetest.get_meta(context.pos)
+				meta:set_string("font", name)
+				display_api.update_entities(context.pos)
+			end
+		end
+		-- Using after to avoid the "double close" bug
+		minetest.after(0, show_node_formspec, playername, context.pos)
+	end
+	return true
+end)
+
+function font_api.show_font_list_from_pos(player, pos)
+	if minetest.is_player(player) then
+		local context = get_context(player:get_player_name())
+		context.pos = pos
+		show_font_formspec(player:get_player_name())
+	end
+end

font_api/init.lua

@@ -29,9 +29,10 @@ font_api.path = minetest.get_modpath(font_api.name)
 
 dofile(font_api.path.."/font.lua")
 dofile(font_api.path.."/registry.lua")
+dofile(font_api.path.."/fontform.lua")
 
 --- Standard on_display_update entity callback.
--- Node should have a corresponding display_entity with size, resolution and 
+-- Node should have a corresponding display_entity with size, resolution and
 -- maxlines fields and optionally halign, valign and color fields
 -- @param pos Node position
 -- @param objref Object reference of entity
@@ -49,8 +50,8 @@ function font_api.on_display_update(pos, objref)
 
 		local maxlines = def.maxlines or 1 -- TODO:How to do w/o maxlines ?
 
-		objref:set_properties({ 		 
-			textures={font:make_text_texture(text, 
+		objref:set_properties({
+			textures={font:make_text_texture(text,
 				font:get_height(maxlines) * def.size.x / def.size.y
 					/ (def.aspect_ratio or 1),
 				font:get_height(maxlines),
@@ -62,4 +63,3 @@ end
 
 -- Compatibility
 font_lib = font_api
-

signs_api/init.lua

@@ -35,49 +35,62 @@ function signs_api.set_display_text(pos, text, font)
 	else
 		meta:set_string("infotext", "")
 	end
-	meta:set_string("font", font)
+	if font then
+		meta:set_string("font", font)
+	end
 	display_api.update_entities(pos)
 end
 
 function signs_api.set_formspec(pos)
 	local meta = minetest.get_meta(pos)
 	local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
-	if ndef and ndef.display_entities 
+	if ndef and ndef.display_entities
 	   and ndef.display_entities["signs:display_text"] then
 		local maxlines = ndef.display_entities["signs:display_text"].maxlines
-		local formspec, formheight
+		local fs, x, y
 
 		if maxlines == 1 then
-			formspec =
-				"field[0.5,0.7;5.5,1;display_text;"..F("Text")..
-					";${display_text}]"
-			formheight = 2	
+			fs = "field[0.5,0.7;5.5,1;display_text;"..F("Text")..
+				";${display_text}]"
+			y = 1.2
 		else
 			local extralabel = ""
 			if maxlines then
 				extralabel = F(" (first %s lines only)"):format(maxlines)
 			end
 
-			formspec = 
-				"textarea[0.5,0.7;5.5,2;display_text;"..F("Text")..""..
+			fs = "textarea[0.5,0.7;5.5,2;display_text;"..F("Text")..""..
 					extralabel..";${display_text}]"
-			formheight = 3
+			y = 2.4
 		end
 
-		formspec = formspec.."button_exit[2,"..formheight..";2,1;ok;"..
+		x = 0.2
+		fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_font.png;font;]"
+		x = x + 0.4
+		fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_left.png;left;]"
+		x = x + 0.4
+		fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_center.png;center;]"
+		x = x + 0.4
+		fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_right.png;right;]"
+		y = y + 0.7
+		fs = fs.."button_exit[2,"..y..";2,1;ok;"..
 			F("Write").."]"
-		formheight = formheight + 1
-		formspec = "size[6,"..formheight.."]"..default.gui_bg..
-			default.gui_bg_img..default.gui_slots..formspec
+		y = y + 0.8
+		fs = "size[6,"..y.."]"..default.gui_bg..
+			default.gui_bg_img..default.gui_slots..fs
 
-		meta:set_string("formspec", formspec)
+		meta:set_string("formspec", fs)
 	end
 end
 
 function signs_api.on_receive_fields(pos, formname, fields, player)
 	if not minetest.is_protected(pos, player:get_player_name()) then
 		if fields and (fields.ok or fields.key_enter) then
-			signs_api.set_display_text(pos, fields.display_text, fields.font)
+			signs_api.set_display_text(pos, fields.display_text)
+		end
+		if fields and (fields.font) then
+			signs_api.set_display_text(pos, fields.display_text)
+			font_api.show_font_list_from_pos(player, pos)
 		end
 	end
 end
@@ -183,7 +196,8 @@ function signs_api.register_sign(mod, name, model)
 		on_destruct = display_api.on_destruct,
 		on_rotate = signs_api.on_rotate,
 		on_receive_fields =  signs_api.on_receive_fields,
-		on_punch = function(pos, node, player, pointed_thing) 
+		on_punch = function(pos, node, player, pointed_thing)
+				signs_api.set_formspec(pos)
 				display_api.update_entities(pos)
 			end,
 	}
@@ -211,7 +225,3 @@ end
 
 -- Text entity for all signs
 display_api.register_display_entity("signs:display_text")
-
-
-
-