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Motif and CDE 2.1 Style Guide Reference
Area Adjust Click Technique
Reference
Description
The area adjust click technique is an adjustment selection technique in
which an area of elements already identified as the current selection region
can be adjusted by identifying an adjustment point.
- Mouse-based area adjust click technique
- Click the ADJUST button at the adjustment point.
- Keyboard-based area adjust click technique
- With the cursor at the adjustment point, press the Shift Select, Shift
Space (unless in text), or Ctrl Shift Space keys.
When to Use
- Recommended
- Support the area adjust click technique as an alternative to the area
adjust swipe technique when the area adjust swipe technique is too cumbersome
to use.
Guidelines
- Required
- When using the area adjust click technique, and the adjustment policy is
to reselect:
- Determine the new selection region to be the area determined by the
anchor point and the adjustment point.
- Enlarge the new selection region to include the anchor element or
anchor region, if indicated by the anchor inclusion policy.
- Enlarge the new selection region, if indicated by the end-point
inclusion policy, to include the element, if any, at the adjustment
point.
- Required
- When using the area adjust click technique, and the adjustment policy is
to enlarge, make the new selection region larger than the following:
- The current selection region
- The region determined using the reselect adjustment policy
- Required
- When using the area adjust click technique, and the adjustment policy is
to balance:
- Move (if necessary) the anchor point so that it is at the corner of
the current selection region farthest from the adjustment point.
- Determine the new selection region to be the area determined by the
new anchor point and the adjustment point.
- Enlarge the new selection region to include the anchor element or
anchor region, if the anchor point is unchanged and if indicated by the
anchor inclusion policy.
- Enlarge the new selection region, if indicated by the end-point
inclusion policy, to include the element, if any, at the adjustment
point.
- Required
- If the current selection region does not include an anchor element, or if
the anchor element is no longer in the selection region, identify the anchor
element to be the element, if any, in the region nearest the anchor point.
- Required
- After a mouse-based area adjust click technique is used, place the active
cursor as follows:
- If it is a text or graphics cursor, at the point at which the
ADJUST button was clicked
- If the selection region contains one or more elements, on some
element within the selection region
- If neither of the above, on the currently cursored element in the
selection scope
Essential Related Topics
For more information, see the Adjustment Techniques, Selection
Policies, and Selection Techniques reference pages.
Supplemental Related Topics
For more information, see the Area Adjust Swipe Technique, Area Click
Technique, Area Swipe Technique, Range Adjust Click Technique, Selection
Models, Selection Modes, and Touch Adjust Click Technique reference pages.
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