Computer system, user interface component and method utilizing non-linear scroll bar

• US 6,157,381 A
• Filed: 11/18/1997
• Issued: 12/05/2000
• Est. Priority Date: 11/18/1997
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Day, Paul R., Bates, Cary L.
• Primary Examiner(s): Bayerl, Raymond J.
• Assistant Examiner(s): Thai, Cuong T.
• Application Number:
  US08/972,608
• Time in Patent Office: 1,113 Days
• Field of Search: 345/341, 345/340, 345/123, 345/333, 345/334, 345/973, 345/974
• US Class Current: 715/786
• CPC Class Codes: G06F 3/04855 Interaction with scrollbars
• CPC Class Codes: G09G 5/14 Display of multiple viewports
• CPC Class Codes: G09G 5/346 for systems having a bit-mapped display memory
• CPC Class Codes: Y10S 715/973 Scroll tool, e.g. window scroll bar

Abstract

A computer system, user interface component and method utilize a non-linear scroll bar to provide variable mappings between a scroll bar and different portions of a document, and/or between a scroll bar and different subranges of a range of values selectable by the scroll bar. As a result, a scroll bar may be configured to vary the relative scroll rate of a portion of a document to either emphasize or de-emphasize that portion relative to other portions of the document. Generally, emphasized portions of a document are allocated a relatively larger portion of a scroll bar (i.e., with a relatively lower scroll rate), such that navigation to and within such portions is facilitated relative to other portions of the document.

Claims

1. A method of displaying a document on a computer display, the method comprising:

(a) displaying at least a portion of a document in a window on a computer display, the document including at least first and second regions; and

(b) displaying a scroll bar on the computer display, the scroll bar including at least first and second regions, the first region of the scroll bar mapped to the first region of the document to provide a first rate of scroll, and the second region of the scroll bar mapped to the second region of the document to provide a second rate of scroll, wherein the first and second rates of scroll are different.

2. The method of claim 1, further comprising selectively updating the current portion of the document displayed in the window in response to user manipulation of the scroll bar.

3. The method of claim 2, wherein displaying the scroll bar includes displaying the scroll bar along a perimeter of the window.

4. The method of claim 2, wherein displaying the scroll bar includes visually distinguishing the first and second regions.

5. The method of claim 4, wherein visually distinguishing the first and second regions includes rendering a boundary display element delineating the first and second regions.

6. The method of claim 4, wherein visually distinguishing the first and second regions includes rendering the first and second regions with first and second visual representations.

7. The method of claim 6, wherein the first and second visual representations are distinguished in a manner selected from the group consisting of shading, coloring, patterning, displaying an icon, displaying alphanumeric information, and combinations thereof.

8. The method of claim 2, wherein displaying the scroll bar includes displaying a slider on the scroll bar, the slider including a current scroll bar position on the scroll bar that is associated with a current document position for the document displayed in the window.

9. The method of claim 8, wherein the scroll bar is vertically aligned to scroll the document vertically through the window, and wherein the current document position for the document is that which is currently displayed at the top of the window.

10. The method of claim 8, wherein selectively updating the current portion of the document displayed in the window includes:

(a) scrolling through the document at the first rate of scroll in response to user manipulation of the slider when the slider is disposed in the first region of the scroll bar; and

(b) scrolling through the document at the second rate of scroll in response to user manipulation of the slider when the slider is disposed in the second region of the scroll bar.

11. The method of claim 8, further comprising defining the first and second regions of the scroll bar by establishing at least one boundary delineating each region, each boundary having associated therewith a document position and a scroll bar position.

12. The method of claim 11, wherein each region is defined between a pair of boundaries, wherein the rate of scroll for each region is defined as the ratio of the difference between the document positions for the pair of boundaries to the difference between the scroll bar positions for the pair of boundaries.

13. The method of claim 12, wherein selectively updating the current portion of the document displayed in the window includes, in response to user manipulation of the slider to a predetermined scroll bar position on the scroll bar:

(a) determining immediately preceding and succeeding boundaries for the predetermined scroll bar position;

(b) determining a scroll bar offset from the predetermined scroll bar position to the scroll bar position for the immediately preceding boundary;

(c) scaling the scroll bar offset by the rate of scroll defined for the region delineated by the immediately and succeeding boundaries to define a document offset; and

(d) summing the document offset with the document position for the immediately preceding boundary to determine the current document position.

14. The method of claim 8, further comprising dynamically defining the first and second regions of at least one of the document and the scroll bar.

15. The method of claim 14, wherein dynamically defining includes defining the first and second regions of the document and of the scroll bar in response to a history of user manipulation of the scroll bar.

16. The method of claim 15, wherein dynamically defining further includes tracking a navigation history for a user.

17. The method of claim 16, wherein dynamically defining further includes:

(a) creating a plurality of boundaries, each boundary having associated therewith a document position and a scroll bar position, wherein each adjacent pair of boundaries defines a document region and a scroll bar region; and

(b) based upon the navigation history for the user, adjusting at least one of the document and scroll bar positions of selected boundaries to emphasize more frequently navigated regions.

18. The method of claim 17, wherein creating a plurality of boundaries includes:

(a) retrieving from the navigation history a set of directional change positions, each of which being representative of a scroll bar position in which a direction of navigation was reversed by a user; and

(b) creating a boundary for each directional change position.

19. The method of claim 17, wherein creating a plurality of boundaries includes creating a plurality of evenly-spaced boundaries, each having evenly-spaced document and scroll bar positions relative to other boundaries.

20. The method of claim 17, wherein adjusting at least one of the document and scroll bar positions of selected boundaries includes:

(a) determining from the navigation history a frequency of navigation associated with each pair of boundaries;

(b) determining an expansion factor for each pair of boundaries based upon the associated frequency of navigation; and

(c) adjusting at least one of the document and scroll bar positions for selected boundaries based upon the expansion factors determined for each pair of boundaries.

21. A method of setting a value in a computer system using a graphical user interface environment, the method comprising:

(a) displaying a scroll bar on the computer display, the scroll bar associated with a variable having associated therewith a range of values, the range of values including first and second subranges, and the scroll bar including at least first and second regions, the first region of the scroll bar mapped to the first subrange to provide a first rate of scroll, and the second region of the scroll bar mapped to the second subrange to provide a second rate of scroll, wherein the first and second rates of scroll are different; and

(b) selectively updating the variable in response to user manipulation of the scroll bar.

22. A user interface component configured to be displayed on a computer display to receive user input for manipulating a window displayed on the computer display, the window of the type having at least a portion of a document displayed therein, the document including at least first and second regions, the user interface component comprising:

(a) a scroll bar display element displayed on the computer display; and

(b) first and second regions defined on the scroll bar display element, the first region mapped to the first region of the document to provide a first rate of scroll, and the second region mapped to the second region of the document to provide a second rate of scroll, wherein the first and second rates of scroll are different.

23. The user interface component of claim 22, further comprising a user control displayed on the computer display in association with the scroll bar display element, the user control responsive to user input to update the current portion of the document displayed in the window.

24. The user interface component of claim 23, wherein the scroll bar display element is displayed along a perimeter of the window.

25. The user interface component of claim 23, wherein the first and second regions of the scroll bar display element are respectively displayed in first and second visually distinguishable representations.

26. The user interface component of claim 23, further comprising a boundary display element delineating the first and second regions of the scroll bar display element.

27. The user interface component of claim 23, wherein the user control comprises a slider including a current scroll bar position on the scroll bar display element that is associated with a current document position for the document displayed in the window.

28. The user interface component of claim 27, wherein the slider is configured to scroll the portion of the document displayed in the window at the first rate of scroll in response to user manipulation of the slider when the slider is disposed in the first region of the scroll bar display element, and to scroll the portion of the document displayed in the window at the second rate of scroll in response to user manipulation of the slider when the slider is disposed in the second region of the scroll bar display element.

29. The user interface component of claim 27, further comprising at least one boundary delineating the first and second regions of the scroll bar display element, each boundary having associated therewith a document position and a scroll bar position.

30. The user interface component of claim 29, wherein each region is defined between a pair of boundaries, wherein the rate of scroll for each region is defined as the ratio of the difference between the document positions for the pair of boundaries to the difference between the scroll bar positions for the pair of boundaries.

31. The user interface component of claim 23, wherein the rate of scroll for each region is dynamically adjustable in response to a user navigation history.

32. A computer system, comprising:

(a) a computer display; and

(b) a processor, coupled to the computer display, the processor configured to display a window on the computer display;

to display at least a portion of a document in the window, the document including at least first and second regions; and

to display a scroll bar on the computer display, the scroll bar including at least first and second regions, the first region of the scroll bar mapped to the first region of the document to provide a first rate of scroll, and the second region of the scroll bar mapped to the second region of the document to provide a second rate of scroll, wherein the first and second rates of scroll are different.

33. The computer system of claim 32, wherein the processor is further configured to selectively update the current portion of the document displayed in the window in response to user manipulation of the scroll bar.

34. The computer system of claim 33, wherein the processor is further configured to display the scroll bar along a perimeter of the window.

35. The computer system of claim 33, wherein the processor is further configured to display the scroll bar with the first and second regions visually distinguished.

36. The computer system of claim 35, wherein the processor is further configured to display a boundary display element delineating the first and second regions of the scroll bar.

37. The computer system of claim 35, wherein the processor is further configured to render the first and second regions with first and second visual representations.

38. The computer system of claim 33, wherein the processor is further configured to display a slider on the scroll bar, the slider including a current scroll bar position on the scroll bar that is associated with a current document position for the document displayed in the window.

39. The computer system of claim 38, wherein the processor is further configured to:

(a) scroll through the document at the first rate of scroll in response to user manipulation of the slider when the slider is disposed in the first region of the scroll bar; and

(b) scroll through the document at the second rate of scroll in response to user manipulation of the slider when the slider is disposed in the second region of the scroll bar.

40. The computer system of claim 38, wherein the processor is further configured to define the first and second regions of the scroll bar by establishing at least one boundary delineating each region, each boundary having associated therewith a document position and a scroll bar position.

41. The computer system of claim 33, wherein the processor is further configured to dynamically define the first and second regions of at least one of the document and the scroll bar.

42. The computer system of claim 41, wherein the processor is further configured to track a navigation history for a user, and in response to the navigation history, to define the first and second regions of the document and of the scroll bar.

43. The computer system of claim 41, wherein the processor is further configured to create a plurality of boundaries, each boundary having associated therewith a document position and a scroll bar position, wherein each adjacent pair of boundaries defines a document region and a scroll bar region;

and based upon the navigation history for the user, to adjust at least one of the document and scroll bar positions of selected boundaries to emphasize more frequently navigated regions.

44. A program product, comprising:

(a) a program configured to perform a method of displaying a document on a computer display, the method comprising;

(1) displaying at least a portion of a document in a window on a computer display, the document including at least first and second regions; and

(2) displaying a scroll bar on the computer display, the scroll bar including at least first and second regions, the first region of the scroll bar mapped to the first region of the document to provide a first rate of scroll, and the second region of the scroll bar mapped to the second region of the document to provide a second rate of scroll, wherein the first and second rates of scroll are different; and

(b) a signal bearing media bearing the program.

45. The program product of claim 44, wherein the signal bearing media comprises a recordable type media.

46. The program product of claim 44, wherein the signal bearing media comprises transmission type media.

47. A method of setting a value in a computer system using a graphical user interface environment, the method comprising:

(a) displaying a scroll bar on the computer display, the scroll bar including a plurality of scroll bar positions defined on the scroll bar, the scroll bar associated with a variable having associated therewith a range of values, wherein the plurality of scroll bar positions defined on the scroll bar are mapped to the range of values via a non-linear mapping;

(b) displaying a slider on the scroll bar at a current scroll bar position among the plurality of scroll bar positions; and

(c) determining one of a current value for the variable and the current scroll bar position from the other of the current value and the current scroll bar position based upon the non-linear mapping defined for the scroll bar.

48. The method of claim 47, wherein the variable represents a document position in a document, the method further comprising displaying at least a portion of the document in a window on the computer display.

49. The method of claim 47, wherein the non-linear mapping is defined by first and second rates of scroll, the first and second rates of scroll being different from one another, the first rate of scroll provided by mapping a first subrange in the range of values for the variable to a first region of the scroll bar, and the second rate of scroll provided by mapping a second subrange in the range of values for the variable to a second region of the scroll bar.

50. The method of claim 49, wherein the first and second rates of scroll are respectively uniform throughout the first and second regions of the scroll bar.

51. A method of displaying a document on a computer display, the method comprising:

(a) displayig at least a portion of a document in a window on a computer display, the document including at least first and second regions, each region of the document bounded by a pair of document positions; and

(b) displaying a scroll bar on the computer display, the scroll bar including at least first and second regions, each region of the scroll bar bounded by a pair of scroll bar positions, the first region of the scroll bar mapped to the first region of the document to provide a first rate of scroll associated with the ratio of the difference between the pair of document positions for the first region of the document to the difference betweeen the pair of scroll bar positions for the first region of the scroll bar, and the second region of the scroll bar mapped to the second region of the document to provide a second rate of scroll associated with the ratio of the difference between the pair of document positions for the second region of the document to the difference between the pair of scroll bar positions for the second region of the scroll bar, wherein the first and second rates of scroll are different.

52. A method of setting a value in a computer system using a graphical user interface environment, the method comprising:

(a) displaying a scroll bar on the computer display, the scroll bar associated with a variable having associated therewith a range of values, the range of values including first and second subranges, each subrange of the range of values bounded by a pair of values, and the scroll bar including at least first and second regions, each region of the scroll bar bounded by a pair of scroll bar positions, the first region of the scroll bar mapped to the first subrange to provide a first rate of scroll associated with the ratio of the difference between the pair of values for the first subrange to the difference between the pair of scroll bar positions for the first region, and the second region of the scroll bar mapped to the second subrange to provide a second rate of scroll associated with the ratio of the difference between the pair of values for the second subrange to the difference between the pair of scroll bar positions for the second region, wherein the first and second rates of scroll are different; and

(b) selectively updating the variable in response to user manipulation of the scroll bar.

53. A user interface component configured to be displayed on a computer display to receive user input for manipulating a window displayed on the computer display, the window of the type having at least a portion of a document displayed therein, the document including at least first and second regions, each region of the document bounded by a pair of document positions, the user interace component comprising:

(a) a scroll bar display element displayed on the computer display; and

(b) first and second regions defined on the scroll bar display element, each region of the scroll bar bounded by a pair of scroll bar positions, the first region of the scroll bar mapped to the first region of the document to provide a first rate of scroll associated with the ratio of the difference between the pair of document positions for the first region of the document to the difference between the pair of scroll bar positions for the first region of the scroll bar, and the second region of the scroll bar mapped to the second region of the document to provide a second rate of scroll associated with the ratio of the difference between the pair of document positions for the second region of the document to the difference between the pair of scroll bar positions for the second region of the scroll bar, wherein the first and second rates of scroll are different.

54. A computer system, comprising:

(a) a computer display; and

(b) a processor, coupled to the computer display, the processor configured to display a window on the computer display;

to display at least a portion of a document in the window, the document including at least first and second regions, each region of the document bounded by a pair of document positions; and

to display a scroll bar on the computer display, the scroll bar including at least first and second regions, each region of the scroll bar bounded by a pair of scroll bar positions, the first region of the scroll bar mapped to the first region of the document to provide a first rate of scroll associated with the ratio of the difference between the pair of document positions for the first region of the document to the difference between the pair of scroll bar positions for the first region of the scroll bar, and the second region of the scroll bar mapped to the second region of the document to provide a second rate of scroll associated with the ratio of the difference between the pair of document positions for the second region of the document to the difference between the pair of scroll bar positions for the second region of the scroll bar, wherein the first and second rates of scroll are different.

55. A program product, comprising:

(a) a program configured to perform a method of displaying a document on a computer display, the method comprising;

(1) displaying at least a portion of a document in a window on a computer display, the document including at least first and second regions, each region of the document bounded by a pair of document positions; and

(2) displaying a scroll bar on the computer display, the scroll bar including at least first and second regions, each region of the scroll bar bounded by a pair of scroll bar positions, the first region of the scroll bar mapped to the first region of the document to provide a first rate of scroll associated with the ratio of the difference between the pair of document positions for the first region of the document to the difference between the pair of scroll bar positions for the first region of the scroll bar, and the second region of the scroll bar mapped to the second region of the document to provide a second rate of scroll associated with the ratio of the difference between the pair of document positions for the second region of the document to the difference between the pair of scroll bar positions for the second region of the scroll bar, wherein the first and second rates of scroll are different; and

(b) a signal bearing media bearing the program.