| 摘要 |
<p>Provided are: a display displaying a ladder-diagram-creating editor screen; a touch panel overlapped on the display; an operation detection unit detecting an operation on the panel; a display control unit causing the display to display a representative icon corresponding to one of programming items that are insertable into the diagram, and display a display box in which derived icons corresponding to other programming items insertable into the diagram are arranged around the representative, when the detection unit detects a touch operation on the panel at the representative; and an execution unit that, when the detection unit detects that a finger having performed the touch operation or a finger having performed the panel and slid is lifted-off the panel, inserts the item corresponding to the representative or derived icon displayed at a position where the finger is detected to be lifted-off, into the diagram.</p> |
