| 摘要 |
A divided table cell is generated by selecting one cell in a table and creating a new cell to display over the selected cell. Both cells contain a constraint that define an area where that cell cannot display objects. Objects comprise alphanumeric characters, graphical symbols or any representation in a table cell. The cells are displayed over top of each other such that the display area of one cell coincides with the constraint area of the other cell. The display shows a divided cell capable of accepting and editing objects. The divided cell also retains the characteristics of other cells in the table. The object layout in a cell with a constraint utilizes test rectangles to calculate the height and width of the displayable area of the cell. An initial test rectangle is calculated using the full width of the cell and the height of the objects to be placed in it. The initial test rectangle is then modified by applying the constraint to the initial test rectangle and removing all the sections, preferably rectangular sections, of the initial test rectangle that intersect the constraint. The resulting objects that fit in the modified test rectangle are presented in the display.
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