Custom Widgets

[EclipseCon 2009 Presentation Slides](http://www.eclipse.org/osee/xviewer/XViewer.pdf)

[Download Zip of Code and Example](http://www.eclipse.org/osee/xviewer/org_eclipse_nebula_widgets_xviewer.zip)

The purpose of the XViewer is to give the application developer a more advanced and dynamic TreeViewer that has the filtering and sorting the capabilities of a spreadsheet while providing the users the ability to customize their table to suit their current needs and save/restore these customizations for future use by individual or group.

The XViewer has been incorporated into the Nebula project.

image:xviewer_main.png

Table Customizations

image:xviewer_customize.png

Provides Table Customization dialog to allow selection of visible columns, as well as the specification of their widths and names
Easily reorder columns through drag/drop or table customization
Provides mechanism to save and load table customizations so users can easily switch between customizations
Provides mechanism to '''mark table customizations as individual or global '''to provide sharing of customizations by users and teams (needs to be backed with shared file system or database)
Provides mechanism to **mark table customization as default customization** to display whenever this table is shown
Provides ability for **multiple XViewer tables to be used within the same application**, but provide their own columns and customizations

Sorting and Filtering

image:xviewer_sortfilter.png

Sorting

Sort individual columns (forward or reverse) using **data-specific configured sorter** for that columns data type
Perform unlimited multi-column sorting by holding Ctrl key down and selecting other columns. Re-selecting a column while Ctrl is held down will reverse the sort for that column

Filtering

Quick filter (bottom left) provides for filtering of all visible data by entered keywords
Alt-left click on column header (or right-click menu) allows for filtering by column. As many column filters can be added and work together.
Provides simple metrics (bottom status label) to show number of objects loaded, number shown and number selected.
Status label shows filters and sorters that are currently applied to viewer (bottom status label)

Other Capabilities

Provides ability to **copy rows, columns or individual cells into buffer** for pasting into other applications
Allows for multi-column editing of selected rows/columns
Provides html rendering of currently visible table data
Provides comma separated value export to csv file that can be opened in any spreadsheet application
All the normal capabilities of the existing SWT Tree/TreeViewer have been retained as XViewer is an extension to TreeViewer

Future

Submitted to Nebula as alternative to existing SWT TreeViewer (already part of eclipse.org/osee project)
Allow for advanced column filtering by complex expression and "canned list" of already entered items
Add regular expressions to all filtering capabilities
Provide easy ability to sum selected rows for selected column
Provide simple summing/counting of rows/column data
Provide formulas and functions for advanced summing/counting of data
Provide graphing and charting of data
Collaborate with other table/tree solutions to integrate functionality...

HTML Report and CSV Export

image:xviewer_reportexport.png


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