Controlling method for fixing a scale ratio of browsing image of touch device

摘要

Disclosed is a controlling method for fixing a scale ratio of browsing images of a touch device. The controlling method comprises the steps of: determining a zooming region on a display screen, which is determined by pinching the browsing image from a selected position to thus zoom in or zoom out the browsing image, and the scale ratio of zooming is accordingly determined; displaying a screen-locking icon on the display screen, wherein the scale ratio is locked when the screen-locking icon is triggered to be in a locking state; and displaying the other browsing images with the same scale ratio of zooming and with a viewing size same as the zooming region.

主权项

1. A controlling method for fixing a scale ratio of browsing images of a touch device, which performs a displaying area control of a browsing image shown on a display screen, the controlling method comprises the steps of:
(a) determining a scale ratio of zooming on a display screen, which is determined by sliding finger apart/together to thus zoom in or zoom out the browsing image, and the scale ratio of zooming is accordingly determined from an original scale ratio to the determined scale ratio; (b) displaying a screen-locking icon on the display screen, wherein the scale ratio is locked in a locked state when the screen-locking icon is tapped (c) maintaining the locked scale ratio whenever any other browsing images are displayed; and (d) restoring the original scale ratio from the determined scale ratio when the screen-locking icon is tapped to change the scale ratio from the locked state to an unlocked state.