System and method for using layer bars to indicate levels within non-indented tree view control

• US 20020154177A1
• Filed: 04/19/2001
• Published: 10/24/2002
• Est. Priority Date: 04/19/2001
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Kessen, Bethany Lyn, Moore, Martin Thomas, Barksdale, Molly Kestner, Woods, Gerald Ray
• Granted Patent: US 6,765,597 B2
• Time in Patent Office: Days
• US Class Current: 715/853
• CPC Class Codes: G06F 16/13 File access structures, e.g. distributed indices arrangements of input from, or output to, record carriers G06F3/06
• CPC Class Codes: G06F 16/168 Details of user interfaces specifically adapted to file systems, e.g. browsing and visualisation, 2d or 3d GUIs query results presentation G06F16/156

Abstract

A system and method for displaying layered data, such as data with a hierarchical relationship is provided. A flat tree view control is provided that indicates the level corresponding to individual data items without indenting data items. Layer bars, or markers, are used to indicate the level of the individual data items within the data hierarchy. In addition, color or grayscale shading can be applied to each data item to further indicate the item'"'"'s level within the hierarchy. Items within the same level use the same color or shading. When an item is selected by the user it is expanded or collapsed depending on whether the layers below the selected item already appear on the display screen. Additional level indicator values can be used to further indicate the level of data items. A data item can also be highlighted to indicate a particular attribute corresponding with an individual data item.

Claims

1. A method of displaying layered data, said method comprising:

identifying a plurality of item identifiers to be displayed in a display window;

displaying the plurality of item identifiers using a plurality of vertically displaced identifier spaces, wherein each item identifier begins at a common margin within its respective identifier space;

determining a layer level from a plurality of layer levels for each of the item identifiers; and

displaying a visual marker corresponding to the determined layer level in each identifier space.

2. The method as described in claim 1 wherein the visual marker includes a visual discontinuity with respect to the identifier space.

3. The method as described in claim 2 wherein the visual discontinuity includes a horizontal displacement of at least one edge of the visual marker.

4. The method as described in claim 1 further comprising:

selecting a geometric shape from a plurality of geometric shapes corresponding to the plurality of layer levels, wherein the selected geometric shape corresponds to the determined layer level; and

displaying the selected geometric shape in the identifier space corresponding to the item identifier.

5. The method as described in claim 4 wherein the displayed geometric shape is horizontally displaced within the identifier space, wherein the horizontal displacement is a function of the determined layer level.

6. The method as described in claim 1 further comprising:

displaying an alphanumeric level identifier in each identifier space, wherein the alphanumeric level identifier corresponds with the layer level of the item identifier displayed in the identifier space.

7. The method as described in claim 1 further comprising:

analyzing an attribute corresponding to each item identifier;

determining a visual highlight corresponding to the attribute; and

displaying the visual highlight in the identifier space that includes the item identifier.

8. The method as described in claim 1 further comprising:

formatting the visual marker using one of a plurality of shadings, wherein each of the plurality of shadings corresponds to one of the plurality of layer levels.

9. An information handling system comprising:

one or more processors;

a memory accessible by the processors;

a display screen accessible by the processors; and

a layered data display tool to display layered data on the display screen, the layered data display tool including;

logic for identifying a plurality of item identifiers to be displayed in a display window;

display control logic for displaying the plurality of item identifiers using a plurality of vertically displaced identifier spaces, wherein each item identifier begins at a common margin within its respective identifier space;

level control logic for determining a layer level from a plurality of layer levels for each of the item identifiers; and

visual marker logic for displaying a visual marker corresponding to the determined layer level in each identifier space.

10. The information handling system as described in claim 9 wherein the visual marker logic includes logic for creating a visual discontinuity with respect to the identifier space.

11. The information handling system as described in claim 10 wherein the visual discontinuity includes a horizontal displacement of at least one edge of the visual marker.

12. The information handling system as described in claim 9 further comprising:

selection logic for selecting a geometric shape from a plurality of geometric shapes corresponding to the plurality of layer levels, wherein the selected geometric shape corresponds to the determined layer level; and

geometric shape placement logic for displaying the selected geometric shape in the identifier space corresponding to the item identifier.

13. The information handling system as described in claim 12 wherein the displayed geometric shape is horizontally displaced within the identifier space, wherein the horizontal displacement is a function of the layer level.

14. The information handling system as described in claim 9 further comprising:

alphanumeric identifier logic for displaying an alphanumeric level identifier in each identifier space, wherein the alphanumeric level identifier corresponds with the layer level of the item identifier displayed in the identifier space.

15. The information handling system as described in claim 9 further comprising:

marker highlighting logic for formatting the visual marker using one of a plurality of shadings, wherein each of the plurality of shadings corresponds to one of the plurality of layer levels.

17. The computer program product as described in claim 16 wherein the visual marker includes a visual discontinuity with respect to the identifier space, and wherein the visual discontinuity includes a horizontal displacement of at least one edge of the visual marker.

18. The computer program product as described in claim 16 further comprising:

means for selecting a geometric shape from a plurality of geometric shapes corresponding to the plurality of layer levels, wherein the selected geometric shape corresponds to the determined layer level; and

means for displaying the selected geometric shape in the identifier space corresponding to the item identifier.

19. The computer program product as described in claim 16 further comprising:

means for analyzing an attribute corresponding to each item identifier;

means for determining a visual highlight corresponding to the attribute; and

means for displaying the visual highlight in the identifier space that includes the item identifier.

20. The computer program product as described in claim 16 further comprising:

formatting the visual marker using one of a plurality of shadings, wherein each of the plurality of shadings corresponds to one of the plurality of layer levels.

16. A computer program product of displaying layered data, said computer program product comprising:

means for identifying a plurality of item identifiers to be displayed in a display window;

means for displaying the plurality of item identifiers using a plurality of vertically displaced identifier spaces, wherein each item identifier begins at a common margin within its respective identifier space;

means for determining a layer level from a plurality of layer levels for each of the item identifiers; and

means for displaying a visual marker corresponding to the determined layer level in each identifier space.