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Motif and CDE 2.1 Style Guide Reference

Area Adjust Swipe Technique

Reference

Description

The area adjust swipe technique is an adjustment selection technique in which an area of elements already identified as the current selection region can be adjusted by identifying initial and final adjustment points in a single continuous action. The following describes the steps for mouse-based and keyboard-based techniques:

Mouse-based area adjust swipe technique

  1. Press the ADJUST button at the initial adjustment point.

  2. Move the mouse to the final adjustment point.

  3. Release the ADJUST button at that point.

    4. Keyboard-based area adjust swipe technique
    With the cursor at the initial adjustment point, hold Shift down while pressing a navigation key to move the cursor to the final adjustment point.

    When to Use

    Required
    Support the keyboard-based area adjust swipe technique when the last operation within the scope used an area-based selection technique.

    Guidelines

    Required
    When using the area adjust swipe technique, and the adjustment policy is to reselect:

    1. Determine the new selection region to be the area determined by the anchor point and the final adjustment point.

    2. Enlarge the new selection region to include the anchor element or anchor region, if indicated by the anchor inclusion policy.

    3. Enlarge the new selection region, if indicated by the end-point inclusion policy, to include the element, if any, at the final adjustment point.

      4. Required
      When using the area adjust swipe technique, and the adjustment policy is to enlarge, make the new selection region larger than the following:

      1. The current selection region

      2. The region determined using the reselect adjustment policy

        3. Required
        When using the area adjust swipe technique, and the adjustment policy is to balance:

        1. When using the keyboard-based technique, and the final adjustment point is not within the current selection region, move (if necessary) the anchor point so that it is at the end of the current selection region farthest from either the initial or the final adjustment point. (The use of the final adjustment point is recommended.)

        2. When using the keyboard-based technique, and the final adjustment point is within the current selection region, or when using the mouse-based technique, move (if necessary) the anchor point so that it is at the end of the current selection region farthest from the initial adjustment point.

        3. Determine the new selection region to be the area determined by the new anchor point and the final adjustment point.

        4. 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.

        5. Enlarge the new selection region, if indicated by the end-point inclusion policy, to include the element, if any, at the final adjustment point.

          6. 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 swipe technique is used, place the active cursor as follows:

          1. If it is a text or graphics cursor, at the point at which the ADJUST button was released

          2. If the selection region contains one or more elements, on some element within the selection region

          3. If neither of the above, on the currently cursored element in the selection scope

            4. 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 Click Technique, Area Click Technique, Area Swipe Technique, Range Adjust Swipe Technique, Selection Models, Selection Modes, and Touch Adjust Swipe Technique reference pages.

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