Launcher looks more like in other modern OS

API.md

@@ -22,9 +22,11 @@ Usable from node functions, from apps or outsite
 ## App Definition
 `laptop.register_app(internal_shortname, { definitiontable })` - add a new app or view
 - `app_name` - App name shown in launcher. If not defined the app is just a view, not visible in launcher but can be activated. This way multi-screen apps are possible
+- `app_icon` - Icon to be shown in launcher. If nothing given the default icon is used
+- `app_info` - Short app info visible in launcher tooltip
 - `background_img` - if set the image is added as background to formspec by framework
--	`formspec_func(app, os)` - Function, should return the app formspec (mandatory) During definition the "app" and the "os" are available
--	`receive_fields_func(app, os, fields, sender)` Function for input processing. The "app" and the "os" are available inside the call
+- `formspec_func(app, os)` - Function, should return the app formspec (mandatory) During definition the "app" and the "os" are available
+- `receive_fields_func(app, os, fields, sender)` Function for input processing. The "app" and the "os" are available inside the call
 
 ## App Object
 `local app = laptop.get_app(internal_shortname, os)` - Give the app object internal_shortname, connected to given os. Not necessary in formspec_func or receive_fields_func because given trough interface

apps/launcher_app.lua

@@ -3,6 +3,8 @@ laptop.register_app("launcher", {
 --	app_name = "Main launcher", -- not in launcher list
 	background_img = "os_main2.png",
 	formspec_func = function(app, os)
+		local c_row_count = 4
+
 		local i = 0
 		local out = ""
 		local appslist_sorted = {}
@@ -13,7 +15,11 @@ laptop.register_app("launcher", {
 		end
 		table.sort(appslist_sorted, function(a,b) return a.name < b.name end)
 		for i, e in ipairs(appslist_sorted) do
-			out = out .. 'button['..2*i..',1;2,1;'..e.name..';'..e.def.app_name..']'
+			local x = math.floor((i-1) / c_row_count)*2 + 1
+			local y = ((i-1) % c_row_count)*2 + 1
+			out = out .. 'image_button['..x..','..y..';1,1;'..(e.def.app_icon or 'logo.png')..';'..e.name..';]'..
+						'label['..(x-0.5)..','..(y+1)..';'..e.def.app_name..']'..
+						'tooltip['..e.name..';'..(e.def.app_info or e.name)..']'    --;<bgcolor>;<fontcolor>]'
 		end
 		return out
 	end,

apps/stickynote_app.lua

@@ -1,5 +1,7 @@
 laptop.register_app("stickynote", {
 	app_name = "Sticky note pad",
+	app_icon = "notes_pad.png",
+	app_info = "Write notes in simple text editor",
 	formspec_func = function(app, os)
 		local data = app:get_storage_ref()
 		data.text = data.text or ""

demo_apps.lua

@@ -1,6 +1,8 @@
 
 laptop.register_app("demo1", {
 	app_name = "Demo App",
+	app_icon = "setting_wrench.png",
+	app_info = "The first and simple demo app",
 	formspec_func = function(app, os)
 		return 'button[5,5;3,1;Back;Back to launcher]'
 	end,