Zoom processing device, zoom processing method, and computer program

Abstract

Provided is a new framework to perform zoom processing of a screen displayed on a display by unit of a simple operation. A zoom processing device of this invention, includes: calculates a movement amount of a pointer which is selecting an object on the screen; and performs enlarged display of the screen including the object at a first magnification when, as a result of the calculation, the movement amount of the pointer is equal to or less than a threshold value, and performs reduced display of the screen including the object at a second magnification when, as a result of the calculation, the movement amount of the pointer is greater than a threshold value.

What is claimed is: 
     
         1 . A zoom processing device, comprising:
 a scrolling amount calculation unit for calculating a screen scrolling amount; and   a zoom control unit for performing enlarged display of the screen at a first magnification when, as a result of the calculation, the scrolling amount is equal to or less than a threshold value, and for performing reduced display of the screen at a second magnification when, as a result of the calculation, the scrolling amount is greater than a threshold value,   wherein the scrolling amount calculation unit calculates the screen scrolling amount in a unit time, and   when screen scrolling amounts in a unit time calculated at the calculation time and at an immediately preceding calculation time are equal to or less than a threshold value, the zoom control unit updates the first magnification to a larger magnification, and performs enlarged display of the screen at the updated first magnification, and when screen scrolling amounts in a unit time calculated at the calculation time and at an immediately preceding calculation time are greater than a threshold value, the zoom control unit updates the second magnification to a smaller magnification, and performs reduced display of the screen at the updated second magnification.