IMO i3C Lite, User Manual

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On objects that represent non-discrete information, more action may be required beyond that of
simply touching the object. For example, the slider object requires the operator to touch and
slide the
control in the direction desired. Alternately, alpha-numeric entry objects invoke a pop-up alpha-
numeric keypad for additional user input. The alpha-numeric keypad is discussed below.
NOTE: If the numeric entry object displays >>>>>>> , the value is too big to display in the field or is
above the maximum for an editable field. Likewise, if the numeric entry object displays <<<<<<< in a
numeric field, the value is too small to display or is below the minimum for an editable field.
13.3 Numeric keypad
To allow entry of a specific number, several of the input objects invoke a pop-up numeric keypad when
the object is touched. An example of the numeric keypad invoked from a numeric input object is
shown in Figure 12.2. Once invoked, the operator may touch the appropriate keys to enter a specific
value. When entering a value, the numeric keypad is in one of two modes [new-value or edit-value].
New-Value Mode
Generally, when the numeric keypad is first invoked, it is placed in new-value mode. Initially, the
numeric keypad displays the current value with all the digits being highlighted. Once the first digit is
entered, the current value is erased from the display and the new digit is placed in the first location.
Thereafter, no digits are highlighted, and new digits are added to the rightmost position while the
other digits are shifted left.
Edit-Value Mode
Edit-value mode may be entered from the initial new-value mode by pressing either the left or right
arrow key before any digit key is pressed. The result will be a single character highlighted. The user
may then either touch a key to change the digit at the selected position or the up and down arrows
may be used to add or subtract (respectively) from the selected digit. The user may then use the left
or right arrow keys to select a new position.
Figure 13.2 – Numeric Keypad