SIMULTANEOUS DOCUMENT ZOOM AND CENTERING ADJUSTMENT

• US 20080148177A1
• Filed: 03/16/2007
• Published: 06/19/2008
• Est. Priority Date: 12/14/2006
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Shaw, Han-Yi, Lang, Brent M.
• Granted Patent: US 8,578,292 B2
• Time in Patent Office: Days
• US Class Current: 715/784
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G06F 3/0485 Scrolling or panning

Abstract

A user may control automatic zooming and scrolling functionality with respect to a selected point in the document. A user may provide a first input to select an anchor point in the document. A user may then provide a second input to indicate a zooming level. In response to the second input, the document may zoom in or out of the document (depending on the input) and simultaneously perform scrolling to adjust the displayed center of the document towards the anchor point. The scrolling and zooming functions are performed automatically in response to the second input. In some embodiments, a custom zoom cursor may be displayed during a zoom state and change to indicate the zooming function performed. In some embodiments, the input device may be a pointing device such as a mouse, or another type of input device such as a keyboard, touch screen or other device.

Claims

1. A computer implemented method for displaying a document, comprising:

receiving a first input by a document application with respect to a document from an input device;

determining a location for an anchor point within the document in response to the first input;

receiving a second input from the input device;

automatically adjusting the displayed center of the document with respect to the anchor point in response to the second input; and

automatically adjusting the zoom level of the document in response to the second input.

2. The computer implemented method of claim 1, wherein said step of automatically adjusting the displayed center and automatically adjusting the zoom level are performed simultaneously.

3. The computer implemented method of claim 1, wherein:

the input device is a pointing device;

the displayed center of the document is automatically adjusted to move towards the anchor point; and

the zoom level of the document is automatically adjusted to zoom in from the previous zoom level.

4. The computer implemented method of claim 3, wherein the anchor point is associated with a first set of coordinates within the document, said step of automatically adjusting the displayed center includes:

determining a second set of coordinates associated with the second input;

determining a difference between he first set of coordinates and the second set of coordinates; and

adjusting the center of the document towards the anchor point based on the difference.

5. The computer implemented method of claim 3, wherein the anchor point is associated with a first set of coordinates within the document, said step of automatically adjusting the displayed center includes:

determining a second set of coordinates associated with the second input;

determining a difference between the first set of coordinates and the second set of coordinates; and

increasing the magnification level of the displayed portion of the document based on the difference.

6. The computer implemented method of claim 1, wherein:

the displayed center of the document is automatically adjusted to move away from the anchor point; and

the zoom level of the document is automatically adjusted to zoom out from the previous zoom level.

7. The computer implemented method of claim 6, wherein the anchor point is associated with a first set of coordinates within the document, said step of automatically adjusting the displayed center includes:

determining a second set of coordinates associated with the second input;

determining a difference between the first set of coordinates and the second set of coordinates; and

adjusting the center of the document away the anchor point and towards a default point in the document based on the difference.

8. The method of claim 1, further comprising:

changing the display of a cursor in response to the second input.

9. The method of claim 1, wherein the input device is a pointing device.

10. One or more processor readable storage devices having processor readable code embodied on said processor readable storage devices, said processor readable code for programming one or more processors to perform a method comprising:

receiving a first input into a document;

selecting a first set of coordinates in a document based on said first input;

receiving a second input into the document; and

automatically performing a scrolling operation and a zoom operation with respect to the first set of coordinates based on the second input.

11. The one or more processor readable storage devices of claim 10, wherein the first input is received from a pointing device.

12. The one or more processor readable storage devices of claim 10, wherein the first input is an OnMouseDown event.

13. The one or more processor readable storage devices of claim 10, wherein the first input selects an anchor point in a displayed page of the document, the first set of coordinates set as the anchor point in the displayed page.

14. The one or more processor readable storage devices of claim 10, wherein the second input includes an OnMouseMove event.

15. The one or more processor readable storage devices of claim 10, the second input associated with a second set of coordinates

16. The one or more processor readable storage devices of claim 10, wherein the scrolling operation and zoom operation are performed simultaneously.

17. A computer implemented method for displaying a document, comprising:

providing a document by a document application;

receiving a first input to move a cursor within the document;

automatically adjusting a magnification level and displayed center of the document with respect to the first input;

changing an appearance of the cursor based on the first input to move the cursor.

18. The method of claim 17, wherein said first input includes input to move the cursor away from an anchor point in a magnification region of the document, wherein said step of changing an appearance includes:

displaying an indicator associated with the cursor that the magnification of the document is increased.

19. The method of claim 17, wherein said first input includes input to move the cursor away from an anchor point in a demagnification region of the document, wherein said step of changing an appearance includes:

displaying an indicator associated with the cursor that the demagnification of the document is increased.

20. The method of claim 17, wherein said step of changing an appearance includes:

detecting that the cursor is moved in a new direction that differs from the immediately preceding direction; and

changing the appearance of the indicator based on the new direction.