Caret Position at Line Ends

Prior to this version of TextEdit, if spaces at the end of a line extended

beyond the edge of the view rectangle, TextEdit drew the caret outside the

view rectangle. This effect depended on the combination of line direction

(TESysJust) and line alignment (teJust).

TextEdit no longer draws the caret outside the view rectangle. The caret is

always drawn at the line end (that is, at the edge of the view rectangle) even

when spaces extend beyond the edge of the view rectangle.

When TextEdit determines that a new position for the caret is at the start or

end of a line, the line where the caret is displayed depends on the current caret

position and the value in the clikStuff field in the edit record. TextEdit sets

this field to reflect whether the most recent mouse-down event occurred on

the leading or trailing edge of a character. If the last mouse-down event was on

the leading edge of a character, the new caret position is at the line end that

corresponds to the leading edge of the new character offset. For example, in the

next figure, if the new caret position is at character offset 3, then the caret

appears at the end of the first line if the last mouse-down event was on the

trailing edge of a character.

This corresponds to a leading edge (clikStuff) value of FALSE. Otherwise, the

caret appears at the beginning of the second line.

The caret position at line end