| 摘要 |
Methods and systems for bound based contextual zoom are disclosed. Legacy WINDOWS desktop and web applications were designed for a mouse or other high-precision pointing device, and as such, small controls and closely grouped controls/icons were commonly designed/used on the screen. Interacting with such applications remoted to a touch-based device (e.g., a smartphone or tablet) is difficult. Bound based contextual zoom overcomes at least some of these limitations by permitting a user to zoom in on an area of interest within an application or desktop, and for a period of time long enough to complete the touch interaction. The area zoomed might be a group of controls on a ribbon bar, the minimize/maximize/close buttons in the top-right corner of a window, a group of form input controls, or any other natural cluster of related user interface (UI) elements. The size of the area zoomed and the zoom factor applied are calculated to allow a user to complete their task without overly obscuring the rest of the application/desktop. |
| 主权项 |
1. A method comprising:
receiving, by a processor of a user computing device, a predetermined user gesture on a touchscreen user interface of the user computing device, wherein the predetermined user gesture is configured to activate a request for bound based contextual zooming; generating, by the processor of the user computing device, information associated with the predetermined user gesture including coordinate points of the predetermined user gesture; receiving, by the processor of the user computing device, contextual zoom metrics calculated using at least the information associated with the predetermined user gesture, wherein the contextual zoom metrics comprise zoomed area and zoom factor; retrieving, by the processor of the user computing device, an area of interest in an image stored in a video buffer of the user computing device corresponding to the zoomed area; stretching, by the processor of the user computing device, at least a portion of the retrieved image based on the zoom factor; and displaying, by the processor of the user computing device, a zoomed overlay of the stretched image on less than all of the touchscreen user interface. |
