TCustomGrid.CalcFocusRect procedure
Calculates the bounds for a focus rectangle in the grid control.
Declaration
procedure CalcFocusRect(var ARect: TRect; adjust: Boolean=True)Arguments
ARect | TRect instance where the adjusted row or cell selection is stored. |
adjust |
Description
When row selection is enabled in the grid Options, the
Left and Right values in ARect are updated
to use cached grid information in GCache. Calls
FlipRect to account for Right-to-Left alignment when needed.
Adjust indicates whether values in ARect are adjusted for
horizontal or vertical grid lines drawn in the control. No additional actions
are performed when Adjust is set to
False. The default value for the
parameter is
True.
When goHorzLine is included in Options, the Bottom value in ARect
is decremented to accommodate the horizontal grid line.
When goVertLine is included in Options, the Left or Right value in
ARect is adjusted to accommodate the vertical grid line. Left is incremented
when UseRightToLeftAlignment is set to True. Right is
decremented when UseRightToLeftAlignment is set to False.
CalcFocusRect is called from the DrawRow and
DrawFocusRect methods.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.