Patent ID: 8375318

Claim:
A file management apparatus comprising: representative image storage means for storing representative image data of each of a plurality of content files in association with a creation time of the content file; rendering means for rendering the representative image data at a position corresponding to the creation time with a calendar continuous over days, months, and years serving as a background; display state maintaining means for maintaining, as a display state, a time-axis range of the calendar being displayed and the position, the time-axis range being expressed in first units; operation receiving means for receiving a change operation to change the display state, the change operation including a common scrolling operation in a time-series direction in any time-axis range, a first clicking operation, and a second clicking operation, the operation receiving means including a first button and a second button, the first button implementing the first clicking operation, and the second button implementing the second clicking operation; and control means for controlling, in response to the change operation, the rendering means to render the representative image data on the calendar on a basis of the display state, wherein when the operation receiving means receives the first clicking operation from the first button, the control means switches the time-axis range to be expressed in second units that are shorter in time than the first units, and thereafter when the operation receiving means receives the second clicking operation from the second button, the control means switches back the time-axis range to be expressed in the first units, and the display state maintaining means maintains the position when switching the time-axis range.