The Undiscoverable/Squeak/Halo

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Object Halos

Right-clicking on any object in Squeak or Etoys brings up a halo of tool icons, as in this image. Etoys provides an interactive tutorial on Halo tools in the form of a game called the Demon Castle.


Starting at the top left and proceeding counterclockwise, the icons for a Workspace window are

  • X, Remove from screen
  • O, Collapse
  • Eye, Open a viewer for me.
  • Rectangle, Make a tile representing this object
  • Whirly square, Rotate
  • Title
  • Box and partial frame, Change size
  • Eye dropper, Change color
  • Wrench, Debug
  • Two rectangles, Duplicate
  • Square with corners, Move
  • Square with tongs, Pick up
  • Menu, as shown below

Most of these are reasonably discoverable. The object viewer requires further explanation.

Different kinds of object may have a different selection of tools in the halo. For example, the halo on a text object includes tools for selecting fonts and applying styles to portions of the text.