Electronic device and control method therefor

1. An electronic device comprising:

communication circuitry;

a touch screen; and

a processor configured to:

receive a gesture input through the touch screen;

control the touch screen to display a continuous stroke from a first point corresponding to an input start point of the gesture input to a second point corresponding to an input end point of the gesture input different from the input start point;

receive a cursor move input from an external electronic device through the communication circuitry;

move a cursor onto the continuous stroke displayed on the touch screen based on the received cursor move input;

receive a delete input from the external electronic device through the communication circuitry; and

in response to the received delete input, delete at least a part of the continuous stroke displayed on the touch screen based on a position of the cursor on the continuous stroke.

2. The electronic device of claim 1 , wherein the processor is configured to delete a region of the continuous stroke between the position of the cursor and the second point, among regions of the continuous stroke displayed on the touch screen.

3. The electronic device of claim 1 , wherein the processor is configured to delete the at least the part of the continuous stroke displayed on the touch screen in a direction opposite to an input direction of the gesture input.

4. The electronic device of claim 1 , wherein the processor is configured to delete the at least the part of the continuous stroke displayed on the touch screen based on a magnitude associated with the delete input.

5. The electronic device of claim 1 , wherein the processor is configured to:

delete the at least a part of the continuous stroke displayed on the touch screen based on a first direction associated with the delete input; and

control the touch screen to re-display the at least a part of the continuous stroke deleted based on the delete input, based on a deletion cancel input received from the external electronic device through the communication circuitry and having a second direction different from the first direction associated therewith.

6. The electronic device of claim 1 , wherein the processor is configured to:

control the touch screen to display a remaining part of the continuous stroke based on a shape of the continuous stroke to the second point, displayed before being deleted based on the delete input.

7. The electronic device of claim 1 , wherein the processor is configured to control the touch screen to display a graph corresponding to the continuous stroke.

8. A method for controlling an electronic device, the method comprising:

receiving a gesture input through a touch screen of the electronic device;

displaying, on the touch screen, a continuous stroke from a first point corresponding to an input start point of the gesture input to a second point corresponding to an input end point of the gesture input different from the input start point;

receiving a cursor move input from an external electronic device through communication circuitry;

moving a cursor onto the continuous stroke displayed on the touch screen based on the received cursor move input;

receiving a delete input from the external electronic device through communication circuitry; and

in response to the received delete input, deleting at least a part of the continuous stroke displayed on the touch screen based on a position of the cursor on the continuous stroke.

9. The method of claim 8 , wherein the deleting of the at least the part of the continuous stroke displayed on the touch screen comprises deleting a region of the continuous stroke between the position of the cursor and the second point, among regions of the continuous stroke displayed on the touch screen.

10. The method of claim 8 , wherein the deleting of the at least the part of the continuous stroke displayed on the touch screen comprises deleting the at least the part of the continuous stroke displayed on the touch screen in a direction opposite to an input direction of the gesture input.

11. The method of claim 8 , wherein the deleting of the at least the part of the continuous stroke displayed on the touch screen is based on a magnitude associated with the delete input.

12. The method of claim 8 , further comprising:

deleting the at least a part of the continuous stroke displayed on the touch screen based on a first direction associated with the delete input; and

re-displaying, on the touch screen, the at least a part of the continuous stroke deleted based on the delete input, based on a deletion cancel input received from the external electronic device through the communication circuitry and having a second direction different from the first direction associated therewith.

13. The method of claim 8 , further comprising:

displaying, on the touch screen, a remaining part of the continuous stroke based on a shape of the continuous stroke to the second point, displayed before being deleted based on the delete input.

14. A non-transitory computer-readable recording medium having recorded thereon a program which, when executed by at least one processor of an electronic device, causes the at least one processor to control the electronic device to perform operations comprising:

receiving a gesture input through a touch screen of the electronic device;

displaying, on the touch screen, a continuous stroke from a first point corresponding to an input start point of the gesture input to a second point corresponding to an input end point of the gesture input different from the input start point;

receiving a cursor move input from an external electronic device through communication circuitry;

moving a cursor onto the continuous stroke displayed on the touch screen based on the received cursor move input;

receiving a delete input from the external electronic device through communication circuitry; and

in response to the received delete input, deleting at least a part of the continuous stroke displayed on the touch screen based on a position of the cursor on the continuous stroke.