INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD THEREOF, AND COMPUTER-READABLE STORAGE MEDIUM

• US 20110169753A1
• Filed: 12/29/2010
• Published: 07/14/2011
• Est. Priority Date: 01/12/2010
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Shimamura, Yoshiyuki
• Granted Patent: US 8,510,670 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0486 Drag-and-drop
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

An information processing apparatus inputs instructed coordinates to a display screen, and selects an object displayed at a coordinate position that corresponds to the input coordinates. When a drag operation for the object that was selected by the selection unit has been detected, a determination is made of whether or not the distance between the coordinate position of the selected object and input coordinates after the drag operation was detected exceeds a predetermined distance. If that distance does not exceed the predetermined distance, a moving amount of the object is made less than a moving amount of the drag operation, or the selected object is not moved.

Claims

1. An information processing apparatus, comprising:

an input unit configured to input coordinates in a display screen where an object is being displayed according to an instruction by a user;

a selection unit configured to select the object being displayed in the display screen, corresponding to the input coordinates that were input by the input unit;

a determination unit configured to, based on the input coordinates that were input by the input unit, detect a drag operation performed by the user in order to move the object that was selected by the selection unit, and determine a distance between a position where the object that was selected by the selection unit is being displayed in the display screen and a position that has been designated by the detected drag operation; and

a moving control unit configured to,

when the distance that was determined by the determination unit exceeds a predetermined distance, perform control so as to cause the object that was selected by the selection unit to move following the drag operation, and

when the distance that was determined by the determination unit does not exceed the predetermined distance, perform control so as to cause the object to move such that a moving amount of the object is less than a moving amount of the drag operation, or so as to not cause the object to move.

2. The information processing apparatus according to claim 1,

wherein the determination unit determines a distance in the display screen that corresponds to the drag operation that was detected after the object was selected by the selection unit, as a distance between the position where the object is being displayed and the position that was designated by the drag operation.

3. The information processing apparatus according to claim 1,

wherein the moving control unit, when the distance that was determined by the determination unit exceeds the predetermined distance, causes the object to move such that the distance between the position where the selected object is displayed and the position that has been designated by the user by the drag operation is kept at the predetermined distance.

4. The information processing apparatus according to claim 1, further comprising:

a size determination unit configured to determine the size of the object that was selected by the selection unit,

wherein the moving control unit, when the size of the object that was determined by the size determination unit exceeds a predetermined size, even if the distance that was determined by the determination unit does not exceed the predetermined distance, causes the selected object to move following the drag operation.

5. The information processing apparatus according to claim 1,

wherein information that indicates the predetermined distance from the object that was selected by the selection unit is displayed in the display screen.

6. The information processing apparatus according to claim 1,

wherein when a determination is made that the drag operation by the user is completed based on the results of coordinate input by the input unit, the object that was moved by the moving control unit is displayed at a position in the display screen where the object was being displayed when the drag operation was completed.

7. The information processing apparatus according to claim 1,

wherein when a determination is made that the drag operation by the user is completed based on the results of coordinate input by the input unit, the object that was moved by the moving control unit is displayed at a position in the display screen that was designated by the user when the drag operation was completed.

8. An information processing method, comprising:

inputting coordinates in a display screen where an object is being displayed according to an instruction by a user;

selecting the object being displayed in the display screen, corresponding to the input coordinates that were input in the input step;

detecting, based on the input coordinates that were input in the input step, a drag operation performed by the user in order to move the object that was selected in the selection step, and determining a distance between a position where the object that was selected in the selection step is being displayed in the display screen and a position that has been designated by the detected drag operation; and

performing moving control so as to,

when the distance that was determined in the determination step exceeds a predetermined distance, cause the object that was selected in the selection step to move following the drag operation, and

when the distance that was determined in the determination step does not exceed the predetermined distance, cause the object to move such that a moving amount of the object is less than a moving amount of the drag operation, or so as to not cause the selected object to move.

9. A computer-readable storage medium storing a computer program for causing a computer to execute the information processing method according to claim 8.