| 摘要 |
In the present invention, if a user fast-forwards through pages and the necessity arises for displaying a page that is ahead by means of an image data generation processing by a page image generation unit (114), the page turning management unit (112) of a browsing screen control unit (110) culls pages for generating image data, and requests of an image rendering unit (122) that pages before and after that have already been generated be displayed by means of a dummy. A display region management unit (116) requests of the image rendering unit (122) that stipulated display regions stored in a movement rule recording unit (118) be sequentially displayed by means of a user advancement operation. The advancement operation starts at the point in time that contact by a finger to a front screen touch panel (21) has separated, before which a preliminary notification operation is performed causing the display region to move by a minute amount in the direction of planned motion. |
