Graphical user interface method and system that provides an inertial slider within a scroll bar

• US 5,872,566 A
• Filed: 02/21/1997
• Issued: 02/16/1999
• Est. Priority Date: 02/21/1997
• 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.
• Application Number:
  US08/804,460
• Time in Patent Office: 725 Days
• Field of Search: 345/341, 345/973, 345/123, 345/974, 345/340, 345/339, 345/145, 345/163, 345/349
• 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
• CPC Class Codes: Y10S 715/974 Slider control as on-screen object in operator interface

Abstract

A method and system for use with a graphical user interface having a cursor, scroll bar, and slider provide consistent granularity in scrolling through various differently sized viewable objects displayed within a window of a graphical user interface. The method and system achieves the forgoing by (1) calculating a movement parameter dependent upon the length of a viewable object; and (2) scrolling through the viewable object at a rate dependent upon the calculated movement parameter, in response to user input.

Claims

1. A method for scrolling through various differently sized viewable objects, said method to be utilized with an interface having a slider, and said method comprising the steps of:

calculating a movement parameter dependent upon the length of a viewable object by associating an inertia with a slider, wherein said inertia is dependent upon said viewable object length; and

scrolling through said viewable object at a rate dependent upon said calculated movement parameter, in response to user input.

2. The method of claim 1, wherein said step of associating with a slider an inertia further comprises calculating said inertia dependent upon both user input and viewable object length.

3. The method of claim 1, wherein said step of scrolling through said viewable object further comprises the step of scrolling through said viewable object at a rate dependent upon said inertia of said slider with said scrolling through said viewable object arising in response to a dragging of said inertial slider.

4. The method of claim 1, wherein said step of scrolling through said viewable object further comprises the steps of:

associating dragging said inertial slider with a force; and

scrolling through said viewable object at a rate dependent upon said inertia of said slider and a duration of said force associated with said dragging of said inertial slider such that an initially at rest slider tends to remain at rest until acted upon by said force, and tends to accelerate dependent upon said duration of said force and said slider inertia, with said scrolling through said viewable object arising in response to dragging of said inertial slider.

5. The method of claim 4 further comprising the step of:

arresting the motion of said slider and subsequently scrolling through said viewable object in a reversed direction and at a rate dependent upon said inertia of said slider and a duration of said force associated with said dragging of said inertial slider such that said arrested slider tends to remain at rest until acted upon by said force, and then tends to accelerate dependent upon the duration of said force and said slider inertia, with said arresting the motion of said slider arising in response to a reversal of direction of said dragging of said inertial slider.

6. The method of claim 1, wherein said step of scrolling through said viewable object further comprises the steps of:

associating dragging said inertial slider with a force; and

scrolling through said viewable object at a rate dependent upon said inertia of said slider, a direction of said force, and a duration of said force associated with said dragging of said inertial slider such that an initially at rest slider tends to remain at rest until acted upon by said force, and tends to accelerate dependent upon said direction and duration of said force and said slider inertia, with said scrolling through said viewable object arising in response to dragging of said inertial slider.

7. The method of claim 6 further comprising the step of:

arresting the motion of said slider and subsequently scrolling through said viewable object in a reversed direction and at a rate dependent upon said inertia of said slider, a direction of said force, and a duration of said force associated with said dragging of said inertial slider such that said arrested slider tends to remain at rest until acted upon by said force, and then tends to accelerate dependent upon the direction and duration of said force and said slider inertia, with said arresting the motion of said slider arising in response to a reversal of direction of said dragging of said inertial slider.

8. An apparatus for scrolling through various differently sized viewable objects, said apparatus to be utilized with an interface having a slider, and said apparatus comprising:

a movement parameter determination mechanism that calculates a movement parameter dependent upon the length of a viewable object, including a standstill inertia association mechanism that associates an inertia with a slider, wherein said inertia is dependent upon said viewable object length; and

a scroll rate controller that scrolls through said viewable object at a rate dependent upon said calculated movement parameter, with said scroll rate controller responsive to user input.

9. The apparatus of claim 8, wherein said standstill inertia association mechanism further comprises an inertia calculation mechanism that calculates said inertia dependent upon both user input and viewable object length.

10. The apparatus of claim 8, wherein said scroll rate controller further comprises an inertial response mechanism that scrolls through said viewable object at a rate dependent upon said inertia of said slider with said inertial response mechanism that scrolls through said viewable object responsive to a dragging of said inertial slider.

11. The apparatus of claim 8, wherein said scroll rate controller further comprises:

a force association mechanism that associates dragging said inertial slider with a force; and

an inertial response mechanism that scrolls through said viewable object at a rate dependent upon said inertia of said slider and a duration of said force associated with said dragging of said inertial slider such that an initially at rest slider tends to remain at rest until acted upon by said force, and tends to accelerate dependent upon said duration of said force and said slider inertia, with said inertial response mechanism that scrolls through said viewable object responsive to dragging of said inertial slider.

12. The apparatus of claim 11 further comprising:

a reversal of direction mechanism that arrests the motion of said slider and subsequently scrolls through said viewable object in a reversed direction and at a rate dependent upon said inertia of said slider and a duration of said force associated with said dragging of said inertial slider such that said arrested slider tends to remain at rest until acted upon by said force, and then tends to accelerate dependent upon the duration of said force and said slider inertia, with said reversal of direction mechanism that arrests the motion of said slider responsive to a reversal of direction of said dragging of said inertial slider.

13. The apparatus of claim 8, wherein said scroll rate controller further comprises:

a force association mechanism that associates dragging said inertial slider with a force; and

an inertial response mechanism that scrolls through said viewable object at a rate dependent upon said inertia of said slider, a direction of said force, and a duration of said force associated with said dragging of said inertial slider such that an initially at rest slider tends to remain at rest until acted upon by said force, and tends to accelerate dependent upon said direction and duration of said force and said slider inertia, with said inertial response mechanism that scrolls through said viewable object responsive to dragging of said inertial slider.

14. The apparatus of claim 13 further comprising:

a reversal of direction mechanism that arrests the motion of said slider and subsequently scrolls through said viewable object in a reversed direction and at a rate dependent upon said inertia of said slider, a direction of said force, and a duration of said force associated with said dragging of said inertial slider such that said arrested slider tends to remain at rest until acted upon by said force, and then tends to accelerate dependent upon the direction and duration of said force and said slider inertia, with said reversal of direction mechanism that arrests the motion of said slider responsive to a reversal of direction of said dragging of said inertial slider.

15. A program product residing in computer memory in a data-processing system for scrolling through various differently sized viewable objects, said program product to be utilized with an interface having a slider, and said program product comprising:

a movement parameter determination mechanism that calculates a movement parameter dependent upon the length of a viewable object, including a standstill inertia association mechanism that associates an inertia with a slider, wherein said inertia is dependent upon said viewable object length; and

a scroll rate controller that scrolls through said viewable object at a rate dependent upon said calculated movement parameter, with said scroll rate controller responsive to user input; and

signal bearing media bearing said movement parameter determination mechanism and scroll rate controller.

16. The program product of claim 15 wherein said signal bearing media comprises recordable media.

17. The program product of claim 15 wherein said signal bearing media comprises transmission media.

18. The program product of claim 15, wherein said standstill inertia association mechanism further comprises an inertia calculation mechanism that calculates said inertia dependent upon both user input and viewable object length.

19. The program product of claim 15, wherein said scroll rate controller further comprises an inertial response mechanism that scrolls through said viewable object at a rate dependent upon said inertia of said slider with said inertial response mechanism that scrolls through said viewable object responsive to a dragging of said inertial slider.

20. The program product of claim 15, wherein said scroll rate controller further comprises:

a force association mechanism that associates dragging said inertial slider with a force; and

an inertial response mechanism that scrolls through said viewable object at a rate dependent upon said inertia of said slider and a duration of said force associated with said dragging of said inertial slider such that an initially at rest slider tends to remain at rest until acted upon by said force, and tends to accelerate dependent upon said duration of said force and said slider inertia, with said inertial response mechanism that scrolls through said viewable object responsive to dragging of said inertial slider.

21. The program product of claim 20 further comprising:

a reversal of direction mechanism that arrests the motion of said slider and subsequently scrolls through said viewable object in a reversed direction and at a rate dependent upon said inertia of said slider and a duration of said force associated with said dragging of said inertial slider such that said arrested slider tends to remain at rest until acted upon by said force, and then tends to accelerate dependent upon the duration of said force and said slider inertia, with said reversal of direction mechanism that arrests the motion of said slider responsive to a reversal of direction of said dragging of said inertial slider.

22. The program product of claim 15, wherein said scroll rate controller further comprises:

a force association mechanism that associates dragging said inertial slider with a force; and

an inertial response mechanism that scrolls through said viewable object at a rate dependent upon said inertia of said slider, a direction of said force, and a duration of said force associated with said dragging of said inertial slider such that an initially at rest slider tends to remain at rest until acted upon by said force, and tends to accelerate dependent upon said direction and duration of said force and said slider inertia, with said inertial response mechanism that scrolls through said viewable object responsive to dragging of said inertial slider.

23. The program product of claim 22 further comprising:

a reversal of direction mechanism that arrests the motion of said slider and subsequently scrolls through said viewable object in a reversed direction and at a rate dependent upon said inertia of said slider, a direction of said force, and a duration of said force associated with said dragging of said inertial slider such that said arrested slider tends to remain at rest until acted upon by said force, and then tends to accelerate dependent upon the direction and duration of said force and said slider inertia, with said reversal of direction mechanism that arrests the motion of said slider responsive to a reversal of direction of said dragging of said inertial slider.