Electronic Device and Method for Controlling Zooming of Displayed Object

• US 20140098061A1
• Filed: 12/16/2013
• Published: 04/10/2014
• Est. Priority Date: 09/29/2012
• Status: Active Grant

• Current Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Inventors: Huang, Wen, Zhang, Jianchun
• Granted Patent: US 9,632,680 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 3/04845 for image manipulation, e.g. dragging, rotation, expansion or change of colour
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

An electronic device and a method for controlling zooming of a displayed object are disclosed. The method includes: receiving a single-point slide operation performed by a user on a displayed object of a touch screen, and generating a slide signal; parsing the slide signal to obtain a slide track and a feature value of the single-point slide operation; determining whether the feature value of at least one point in the single-point slide operation is greater than a preset value; and when the feature value is greater than the preset value, controlling zooming of the displayed object according to the slide track. A slide track and a feature value of a single-point slide operation of a user are identified, and when it is determined that the feature value is greater than a preset value, zooming of a displayed object of the touch screen is controlled.

Claims

1. A method for controlling zooming of a displayed object, comprising:

receiving a single-point slide operation performed by a user on a displayed object of a touch screen;

generating a slide signal in response to the single-point slide operation;

parsing the slide signal to obtain a slide track and a feature value of the single-point slide operation, wherein the feature value is at least one of a touch pressure and a contact area;

determining whether the feature value of at least one point in the single-point slide operation is greater than a preset value; and

controlling zooming of the displayed object according to the slide track when the feature value is greater than the preset value.

2. The method according to claim 1, wherein when the feature value is the touch pressure, determining whether the feature value of the at least one point in the single-point slide operation is greater than the preset value comprises determining whether the touch pressure of the at least one point in the single-point slide operation is greater than the preset value.

3. The method according to claim 1, wherein when the feature value is the touch pressure and the contact area, determining whether the feature value of the at least one point in the single-point slide operation is greater than the preset value comprises:

determining whether the touch pressure of the at least one point in the single-point slide operation is greater than a first preset value; and

determining whether the contact area of the at least one point in the single-point slide operation is greater than a second preset value.

4. The method according to claim 1, wherein when the feature value is the contact area, determining whether the feature value of the at least one point in the single-point slide operation is greater than the preset value comprises determining whether the contact area of the at least one point in the single-point slide operation is greater than the preset value.

5. The method according to claim 1, wherein controlling zooming of the displayed object according to the slide track comprises:

zooming in the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track moves far away from a reference point, wherein the reference point is a preset point on the touch screen.

6. The method according to claim 1, wherein controlling zooming of the displayed object according to the slide track comprises:

zooming out the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track approaches a reference point, wherein the reference point is a preset point on the touch screen.

7. The method according to claim 1, wherein controlling zooming of the displayed object according to the slide track comprises:

determining a value of a deflection angle and a direction of the deflection angle according to the slide track and the deflection angle that is formed by connecting lines from two end points of the slide track to a reference point; and

either zooming in or zooming out the displayed object according to the direction of the deflection angle and correspondence between a value of the deflection angle and a zooming scale, wherein the reference point is a preset point on the touch screen.

8. An electronic device, comprising:

a touch screen configured to;

receive a single-point slide operation performed by a user on a displayed object of the touch screen; and

generate a slide signal; and

a processor configured to;

parse the slide signal;

obtain a slide track and a feature value of the single-point slide operation, wherein the feature value is at least one of a touch pressure and a contact area;

determine whether the feature value of at least one point in the single-point slide operation is greater than a preset value; and

control zooming of the displayed object according to the slide track when the feature value is greater than the preset value.

9. The electronic device according to claim 8, wherein when the feature value is the touch pressure, determining whether the feature value of the at least one point in the single-point slide operation is greater than the preset value comprises determining whether the touch pressure of the at least one point in the single-point slide operation is greater than the preset value.

10. The electronic device according to claim 8, wherein when the feature value is the contact area, determining whether the feature value of the at least one point in the single-point slide operation is greater than the preset value comprises determining whether the contact area of the at least one point in the single-point slide operation is greater than the preset value.

11. The electronic device according to claim 8, wherein when the feature value is the touch pressure and the contact area, determining whether the feature value of the at least one point in the single-point slide operation is greater than the preset value comprises:

determining whether the touch pressure of the at least one point in the single-point slide operation is greater than a first preset value; and

determining whether the contact area is greater than a second preset value.

12. The electronic device according to claim 8, wherein controlling zooming of the displayed object according to the slide track comprises:

zooming in the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track moves far away from a reference point, wherein the reference point is a preset point on the touch screen;

or

zooming out the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track approaches a reference point, wherein the reference point is a preset point on the touch screen.

13. The electronic device according to claim 9, wherein controlling zooming of the displayed object according to the slide track comprises:

zooming in the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track moves far away from a reference point, wherein the reference point is a preset point on the touch screen;

or

zooming out the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track approaches a reference point, wherein the reference point is a preset point on the touch screen.

14. The electronic device according to claim 10, controlling zooming of the displayed object according to the slide track comprises:

zooming in the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track moves far away from a reference point, wherein the reference point is a preset point on the touch screen;

or

zooming out the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track approaches a reference point, wherein the reference point is a preset point on the touch screen.

15. The electronic device according to claim 11, wherein controlling zooming of the displayed object according to the slide track comprises:

zooming in the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track moves far away from a reference point, wherein the reference point is a preset point on the touch screen;

or

zooming out the displayed object according to correspondence between a sliding distance and a zooming scale when it is determined, according to the slide track, that a sliding direction of the slide track approaches a reference point, wherein the reference point is a preset point on the touch screen.

16. The electronic device according to claim 8, wherein controlling zooming of the displayed object according to the slide track comprises:

determining a value of a deflection angle and a direction of the deflection angle according to the slide track and the deflection angle that is formed by connecting lines from two end points of the slide track to a reference point; and

zooming in or zooming out the displayed object according to the direction of the deflection angle and correspondence between a value of the deflection angle and a zooming scale, wherein the reference point is a preset point on the touch screen.

17. The electronic device according to claim 9, wherein controlling zooming of the displayed object according to the slide track comprises:

determining a value of a deflection angle and a direction of the deflection angle according to the slide track and the deflection angle that is formed by connecting lines from two end points of the slide track to a reference point; and

zooming in or zooming out the displayed object according to the direction of the deflection angle and correspondence between a value of the deflection angle and a zooming scale, wherein the reference point is a preset point on the touch screen.

18. The electronic device according to claim 10, wherein controlling zooming of the displayed object according to the slide track comprises:

determining a value of a deflection angle and a direction of the deflection angle according to the slide track and the deflection angle that is formed by connecting lines from two end points of the slide track to a reference point; and

zooming in or zooming out the displayed object according to the direction of the deflection angle and correspondence between a value of the deflection angle and a zooming scale, wherein the reference point is a preset point on the touch screen.

19. The electronic device according to claim 11, wherein controlling zooming of the displayed object according to the slide track comprises:

determining a value of a deflection angle and a direction of the deflection angle according to the slide track and the deflection angle that is formed by connecting lines from two end points of the slide track to a reference point; and

zooming in or zooming out the displayed object according to the direction of the deflection angle and correspondence between a value of the deflection angle and a zooming scale, wherein the reference point is a preset point on the touch screen.