Portable apparatus and method for controlling portable apparatus

A portable apparatus comprising:

• a display;
• a detector configured to detect a touch position, on the display, at which a touch is made;
• and
• a processor configured to control the display based on results of detection by the detector, wherein
• the processor:
• sets a first reference position and a second reference position on the display before the touch position is moved, the first reference position relating to the touch position, the second reference position relating to a cursor position,
• when the touch position is moved, determines, as the cursor position, a position distant from the second reference position by a second vector obtained by increasing a first vector between the touch position detected by the detector and the first reference position to move the cursor position along a path obtained by increasing a path of the touch position, and displays a cursor indicating a position as a target for an operation at the cursor position on the display, and
• in a case where the cursor position is out of a range in which the cursor is capable of being displayed on the display, newly sets the second reference position on the display, and newly sets, as the first reference position, the touch position when the cursor position is out of the range in which the cursor is capable of being displayed.

A method for controlling a portable apparatus that controls a display by detecting a touch position, on the display, at which a touch is made, the method comprising the steps of:

• when the touch position is moved, moving a cursor position along a path obtained by increasing a path of the touch position, and displaying a cursor at the cursor position on the display;
• when the touch position is no longer detected in a state in which a first screen is displayed on the display and the cursor position is on the display, performing processing allocated to the cursor position concerning the first screen;
• displaying a second screen on the display based on movement of the cursor position out of the display before the touch position is no longer detected;
• and
• when the touch position is no longer detected in a state in which the second screen is displayed on the display, performing processing allocated to the cursor position concerning the second screen.

A method for controlling a portable apparatus that controls a display by detecting a touch position, on the display, at which a touch is made, the method comprising the steps of:

• setting a first reference position and a second reference position on the display before the touch position is moved, the first reference position relating to the touch position, the second reference position relating to a cursor position;
• when the touch position is moved, determining, as the cursor position, a position distant from the second reference position by a second vector obtained by increasing a first vector between the touch position as detected and the first reference position to move the cursor position along a path obtained by increasing a path of the touch position, and displaying a cursor indicating a position as a target for an operation at the cursor position on the display;
• and
• in a case where the cursor position is out of a range in which the cursor is capable of being displayed on the display, newly setting the second reference position on the display, and newly setting, as the first reference position, the touch position when the cursor position is out of the range in which the cursor is capable of being displayed.