Standard Library

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Package button (in button.i) -

Index of documented functions or symbols:

DOCUMENT button_build(button)
      or button_build(button, which)
  Returns a Button structure instance, modified interactively to be at
  the correct position and to have the correct box half widths, e.g.:

     button= button_build(Button(text="label",y=initial_y))

  You can either drag the center of the button to a new location
  (press down near the center of the button, move the pointer to
  where you want the center, and release at the new center point),
  or press the "Set Box" or "Done" button.  In the "Set Box" mode,
  you can either drag a new box over the button, or press "Set Center"
  (to return to the original mode) or "Done" button.

  Yorick has no way to determine the size of a text string produced
  by the plt command, which is why you need to be able to adjust
  the size of the box draawn around the text.  The idea is to use
  button_build to get the buttons where you like, then put those
  coordinates into the include file for the mouse-driven function
  you are writing.

  Also, the input BUTTON may be an array of buttons, and BUTTON(WHICH)
  will be the one that is modified.  WHICH defaults to 1.  By using an
  array of buttons, you can see all the other buttons in a group while
  you adjust one.

DOCUMENT button_plot, button1, button2, ...
  plot the specified BUTTONs.  Each button in the list may be an array
  of Button structs.  Void arguments are no-ops.

DOCUMENT button_test(button, x, y)
  true if the BUTTON contains NDC coordinates (X,Y).

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