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NAMEPoint Technique — Reference DescriptionThe point technique is an individual selection technique in
which a single point is identified. If the point is on a selectable
element, that element is either selected or has its selection state
toggled. The following describes the steps for mouse-based and keyboard-based
techniques: - Mouse-based point technique
Click the SELECT button at the desired point or
on the desired element. If no mouse-based group technique is supported for the selection
scope: Press the SELECT button on a selectable element. Release the SELECT button on the same element (with
arbitrary movement of the mouse in between).
- Mouse-based point technique, forcing toggle
mode
Click Ctrl SELECT
at the desired point, or on the desired element. If no mouse-based group technique is supported for the selection
scope: Press Ctrl SELECT on a
selectable element. Release the SELECT button on the same element with
arbitrary movement of the mouse in between).
- Keyboard-based point technique
Press Select,
Space (unless in text), or press
Ctrl Space
with the cursor at the desired point or on the desired element.
GuidelinesMouse-Based Select Mode
- Required
When the user is using the point technique in select
mode and presses or clicks the SELECT button on a selectable element
and then releases SELECT on the same element: Deselect all other elements in the scope.
- Required
When using the point technique in select mode and
the user clicks the SELECT button in the background of a selection
scope, deselect all elements in the scope.
Mouse-Based Toggle Mode- Required
When the user is using the point technique in select
mode and presses Ctrl SELECT
in place of SELECT, select as if toggle mode were in use. - Required
When the user is using the point technique in toggle
mode and presses or clicks the SELECT button on a selectable element
and then releases SELECT on the same element, toggle the selection
state of that element. - Required
Allow the point technique in toggle mode to select
an element as follows: If only one element at a time may
be selected in a scope, deselect the currently selected element
(if any) in the scope. If any number of elements can be selected in the
scope, do not change the selection state of the other elements.
- Required
When the user is using the point technique in toggle
mode and clicks the SELECT button in the background of a selection
scope, it should have no effect on the selection state of the elements
in the scope.
Keyboard-Based Normal Mode- Required
When the user is using the point technique in normal
mode while the active cursor is on a selectable element and presses
Select, Space
(unless in text), or Ctrl Space: Deselect all other elements in the scope.
- Required
When the user is using the
point technique in normal mode, if the active cursor is in the background
of a selection scope and the user presses Select,
Space (unless in text), or Ctrl
Space, deselect all elements
in the scope.
Keyboard-Based Add Mode
- Required
When the user is using the point technique in add
mode while the active cursor is on a selectable element and presses
Select, Space
(unless in text), or Ctrl Space,
toggle the selection state of that element. - Required
Allow the point technique in add mode to select
an element as follows: If only one element at a time may
be selected in a scope, deselect the currently selected element
(if any) in the scope. If selections are required to be contiguous, deselect
all other elements in the scope. If any number of elements can be selected in the
scope, do not change the selection state of the other elements.
- Required
When the user is using the point technique in add
mode while the active cursor is in the background of a selection
scope and presses Select, Space
(unless in text), or Ctrl Space: If selections are required to be contiguous,
deselect all elements in the scope. If selections may be discontiguous, do not change
the selection state of the elements in the scope.
Selection Region- Required
When the user performs the point technique on a
selectable element: Identify that element as an anchor
element for later use in adjustment of the selection. Define the current selection region to consist of
that element.
- Required
When the user uses the point technique on a selectable
element, identify a point as an anchor point for later use in adjustment
of the selection. That point should be: The pointer position, for the mouse-based
technique The cursor position, for the keyboard-based technique
with a text or graphics cursor The center of the element, for the keyboard-based
technique with an element cursor
- Required
When the user uses the point technique in the background
of a selection scope: Identify that point as an anchor point
for later use in adjustment of the selection. Define the current selection region to be empty.
- Required
After a mouse-based point technique, place the active
cursor as follows: At the anchor point, if it can be
placed there On the anchor element, if using an element cursor Where the cursor previously was in the scope, if
there is no anchor element
Essential Related TopicsFor more information, see the Adjustment Techniques,
Selection Modes, Selection Policies,
Selection Techniques
reference pages. Supplemental Related TopicsFor more information, see the Selection Models reference
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