INFORMATION PROCESSING DEVICE, CONTROL METHOD FOR SAME AND PROGRAM

摘要

An information processing device comprises a display unit that displays an operation object; a tactile contact detection unit capable of detecting a plurality of push-down points; and a control unit that performs a first operation assessment for detecting whether or not the outer peripheral distance of a first area formed by connecting adjacent push-down points among a plurality of push-down points detected by the tactile contact detection unit decreases over time to a predetermined value or less, and that performs a second operation assessment for detecting whether or not the outer peripheral distance of a second area formed by connecting adjacent push-down points among a plurality of push-down points detected by the tactile contact detection unit increases over time to a predetermined value or more. The control unit puts the operation object in a selected state when there is an overlapping part between the operation object and the first area after the first operation assessment, and performs a first operation corresponding to the place where the second operation assessment has been performed on the operation object ( Fig. 1 ).