Information processing device and image forming apparatus

1. An information processing device comprising:

a display portion that can display a plurality of icons including first information;

a detection portion that detects a contact to the display portion;

a control unit that, in a case in which the detection portion detects a contact having a trajectory encircling at least one icon of the plurality of icons in a state in which the plurality of icons are displayed on the display portion in a first display mode, displays other icons not encircled by the trajectory in a second display mode with a greater display area than the first display mode on the display portion, and displays the at least one icon encircled by the trajectory in a third display mode with a smaller display area than the first display mode on the display portion, wherein the control portion displays the other icon in the second display mode and the at least one icon in the third display mode simultaneously on the display portion.

2. The information processing device according to claim 1 , wherein the control unit:

detects the number of times the at least one icon is encircled by the trajectory of the contact to the display portion and a direction of the trajectory based on a result of detection by the detection portion; and

changes a magnification ratio of the at least one icon from the first display mode to the third display mode, based on the number of times and direction thus detected.

3. The information processing device according to claim 1 , wherein the display portion and the detection portion compose a touch screen.

4. An image forming apparatus comprising the information processing device according to claim 1 .