Visibility seeking scroll bars and other control constructs

• US 5,572,647 A
• Filed: 11/04/1994
• Issued: 11/05/1996
• Est. Priority Date: 11/04/1994
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Blades, Jerry A.
• Primary Examiner(s): Powell, Mark R.
• Assistant Examiner(s): HO, RUAY L
• Application Number:
  US08/334,732
• Time in Patent Office: 732 Days
• Field of Search: 395/155, 395/157, 395/158, 395/159, 395/156, 395/148, 345/120, 345/124
• US Class Current: 715/798
• 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 3/04855 Interaction with scrollbars
• CPC Class Codes: G09G 5/14 Display of multiple viewports

Abstract

A system and method for automatically repositioning and/or resizing scroll bars and other control constructs within a computer window environment. The system monitors the control constructs corresponding to open windows on the display device in order to determine if any of the control constructs are at least partially obstructed or not controllable. This monitoring may occur during each refresh of the display device. If any of the control constructs are not visible or controllable, the system automatically repositions and/or resizes the control construct so that it is visible and/or may be controlled by an operator.

Claims

1. In a data-processing system having a display device capable of displaying multiple objects, one of said objects being a window having an associated control construct and having a control device adapted to be used by an operator for controlling said multiple objects including said control construct, apparatus for enhancing the visibility or controllability of said control construct, comprising:

presentation means for displaying said objects, including said window object and said control construct, on said display device;

electronic decision means for automatically determining that said control construct displayed on said display device is positioned so as to at least partially obscure said construct from a view of the operator or to prevent manipulation of said construct by the operator at said display device; and

electronic positioning means operable in response to said determination for automatically moving at least a portion of said control construct so as to render said control construct visible on said display device or controllable by said operator.

2. The system of claim 1, wherein said electronic positioning means comprises means for automatically moving at least a portion of said remaining objects.

3. The system of claim 1, wherein said electronic decision means comprises means for automatically determining that at least one of said remaining objects on said display device overlies said control construct on said display device.

4. The system of claim 1, wherein none of said remaining objects overlie said control construct on said display device subsequent to said moving of said control construct by said electronic positioning means.

5. The system of claim 1, wherein said electronic positioning means comprises means for automatically moving said control construct independently of said window object.

6. The system of claim 1, wherein said electronic positioning means comprises means for automatically moving said control construct from a first position to a second position.

7. The system of claim 1, wherein said electronic positioning means comprises means for automatically resizing said window object on said display device.

8. A data-processing system, comprising:

a display device capable of displaying multiple objects, one of said objects being a window having an associated control construct;

a control device adapted to be used by an operator for controlling said multiple objects including said control construct;

presentation means for displaying said objects, including said window object and said control construct, on said display device;

electronic decision means for automatically determining that said control construct displayed on said display device is positioned so as to at least partially obscure said construct from a view of the operator or to prevent manipulation of said construct by the operator at said display device; and

electronic positioning means operable in response to said determination for automatically moving at least a portion of said control construct so as to render said control construct visible on said display device or controllable by said operator.

9. The system of claim 8, wherein said electronic positioning means comprises means for automatically moving at least a portion of said remaining objects.

10. The system of claim 8, wherein said electronic decision means comprises means for automatically determining that at least one of said remaining objects on said display device overlies said control construct on said display device.

11. The system of claim 8, wherein none of said remaining objects overlie said control construct on said display device subsequent to said automatic moving of said control construct by said electronic positioning means.

12. The system of claim 8, wherein said electronic positioning means comprises means for automatically moving said control construct independently of said window object.

13. The system of claim 8, wherein said electronic positioning means comprises means for automatically moving said control construct from a first position to a second position.

14. The system of claim 8, wherein said electronic positioning means comprises means for automatically resizing said window object on said display device.

15. In a data-processing system having a display device capable of displaying multiple objects, one of said objects being a window having an associated control construct, a method for enhancing the controllability of said control construct, said method comprising:

displaying said window object and said control construct on said display device;

displaying the remaining ones of said objects on said display device;

automatically determining that said control construct displayed on said display device is positioned so as to at least partially obscure said construct from a view of the operator or to prevent manipulation of said construct by an operator at said display device; and

in response to said automatic determination, automatically moving at least a portion of said control construct so as to render said control construct visible on said display device or controllable by said operator.

16. The method of claim 15, wherein said automatic moving step automatically moves at least a portion of said remaining objects.

17. The method of claim 15, wherein said automatic determining step automatically determines if at least one of said remaining objects on said display device overlies said control construct on said display device.

18. The method of claim 15, wherein none of said remaining objects overlie said control construct on said display device subsequent to said automatic moving of said control construct.

19. The method of claim 15, wherein said automatic moving step moves said control construct independently of said window object.

20. The method of claim 15, wherein said automatic moving step automatically moves said control construct from a first position to a second position.

21. The method of claim 15, wherein said automatic moving step automatically resizes said window object on said display device.

22. A computer program product, comprising:

a computer usable medium having computer readable program code means embodied therein for automatically enhancing the visibility or controllability of a control construct which is displayed with other window objects on a display device, the computer readable program code means in the computer program product comprising;

presentation means for displaying said objects, including said window object and said control construct, on said display device;

electronic decision means for automatically determining that said control construct displayed on said display device is positioned so as to at least partially obscure said construct from a view of the operator or to prevent manipulation of said construct by the operator at said display device; and

electronic positioning means operable in response to said determination means, for automatically moving at least a portion of said control construct so as to render said control construct visible on said display device or controllable by said operator.

23. The computer program product of claim 22, wherein the said electronic positioning means comprises means for automatically moving at least a portion of said remaining objects.

24. The computer program product of claim 22, wherein said electronic decision means comprises means for automatically determining that at least one of said remaining objects on said display device overlies said control construct on said display device.

25. The computer program product of claim 22, wherein none of said remaining objects overlie said control construct on said display device subsequent to said moving of said control construct by said electronic positioning means.

26. The computer program product of claim 22, wherein said electronic positioning means comprises means for automatically moving said control construct independently of said window object.

27. The computer program product of claim 22, wherein said electronic positioning means comprises means for automatically moving said control construct from a first position to a second position.

28. The computer program product of claim 22, wherein said electronic positioning means comprises means for automatically resizing said window object on said display device.