JsonUI Example

{
  "start": [
    { "window": "Primary" },
    { "window": "WindowDock" }
  ],
  "windows": {
    "Primary": {
      "parent": "default:fixed_window",
      "body": [
        {
          // Either "type" or "def"
          // "type" loads a registered template
          // "def" loads a widget definition from "widgetDefinition"
          // All other properties must begin with 'p:' and are defined by templates
          "type": "default:window_root",
          "prop:children": [
            { "def": "Editor" },
            { "def": "Toolbox" }
          ],
          "prop:layout": "ShareWidths"
        }
      ],
      "properties": {
        // Calls functions
       "position": ["default:centralize_x", "default:centralize_y"],
       "dimensions": ["C2/3Width", "C3/5Height"]
      }
    },
    "WindowDock": {
      "parent": "default:window_dock",
      "properties": {
        "position": ["default:centralize_x", "default:align_bottom_y"],
        "dimensions": "inherit"
      }
    }
  },
  // Function name must start with a Capital letter
  "functions": {
    "C2/3Width": {
      // This function template returns double by defualt
      "function": "default:calculate",
      // Poland expression
      // $XXX are environmental variables filled in when constructing the GUI
      "param:expr": ["*", "$SCREEN_WIDTH", ["/", 2, 3]],
      // Force casting function result
      "param:return": "int"
    },
    "C3/5Height": {
      "function": "default:calculate",
      "param:expr": ["*", "$SCREEN_HEIGHT", ["/", 3, 5]],
      "param:return": "int"
    },
    "ShareWidths": {
      "function": "default:grid",
      "param:layout": [
        [1, 2]
      ],
      "param:wportions": [0.8, 0.2],
      "param:hportions": [1]
    },
    "CheckRegistry": {
      "function:": "default:call_method",
      "param:method": "jsonui.exmaple.registry.RegistryHandler.getInstance"
    }
  },
  // Widget definition must start with a Capital letter
  "widgetDefinitions": {
    "Editor": {
      "type": "default:class_definition",
      "prop:class": "jsonui.example.cad.CADEditor"
    },
    "Toolbox": {
      "type": "default:box/strict_table",
      "event": {
        "onInitialAttach": [
          // Supports both reference and inline functions
          "CheckRegistry",
          {
            "function:": "default:call_method",
            "param:method": "jsonui.example.cad.CADToolbox.addToolboxOptions"
          }
        ]
      },
      "prop:growDir": "down",
      "prop:overflowDir": "right",
      "prop:margin": {
        "top": 4,
        "right": 4,
        "bottom": 4,
        "left": 4
      }
    }
  }
}