main.lua

--[[
  Test lgi Lua package with GooCanvas and Modelized items
  ----]]

local lgi = require 'lgi'
local Goo = lgi.GooCanvas
local Gtk = lgi.Gtk

local win = Gtk.Window { width = 640, height = 500, anchor = Gtk.GTK_WINDOW_TOPLEVEL }
local frame = Gtk.Frame { width = 400, height = 400 }
local canvas = Goo.Canvas { parent = frame, id = 'canvas', width = 300, height = 300 }

win.on_key_press_event = nil
win.on_map_event = function() win.on_map_event = nil end
win.on_destroy = Gtk.main_quit

tool_bar = Gtk.Toolbar { height = 48 }
tool_bar:insert(Gtk.ToolButton { stock_id = 'gtk-quit', on_clicked = function() win:destroy() end }, -1)

local item_grp = Goo.CanvasGroup { parent = canvas.root_item,
                                   x = 0, y = 0,
                                   width = 200, height = 150 }
local rect = Goo.CanvasRect { parent = item_grp,
                              x = 0, y = 0,
                              width = 200, height = 150,
                              line_width = 2,
                              stroke_color = 'yellow',
                              fill_color = 'black',
                              radius_x = 10, radius_y = 10 }
local txt = Goo.CanvasText { parent  = item_grp,
                             text = 'Voila !',
                             x = 20, y = 20, width = -1,
                             anchor = Goo.GOO_CANVAS_ANCHOR_CENTER,
                             font = 'source-code bold 12',
                             fill_color = 'red' }
item_grp:scale(-1,1)
print("item grp coordinates after scale x(-1) is "..item_grp.x)
item_grp:translate(-200,0)
print("item grp coordinates after translate x(-200) is "..item_grp.x)
item_grp.x = -200
print("item grp coordinates after translate x(-200) is "..item_grp.x)



-- local root_model = Goo.CanvasGroupModel { canvas.root_item_model, x = 0, y = 0, width = 200, height = 150 }
-- local rectangle_model = Goo.CanvasRectModel { root_model, x = 0, y = 0, line_width = 2, width = 200, height = 150,
--                                               stroke_color = 'yellow', fill_color = 'black', radius_x = 10, radius_y = 10 }
-- local text_model = Goo.CanvasTextModel { root_model, text = 'Voila !', x = 20, y = 20, anchor = Goo.GOO_CANVAS_ANCHOR_CENTER,
--                                          font = 'source-code bold 12', fill_color = 'red' }
-- canvas:set_root_item_model(root_model)


local vbox = Gtk.VBox:new(6)
vbox:add(tool_bar)
vbox:add(frame)

Gtk.Container.add(win, vbox)

win:show_all()
Gtk.main()