Glimmer DSL for LibUI Table Lazy Loading

Glimmer DSL for LibUI 0.6.1 has been released with support for table lazy loading via Enumerator (or Enumerator::Lazy). As a result, the table control can now handle millions of rows and renders instantly without waiting for all data to be loaded given that it is loaded lazily as the user scrolls through the table. That enables applications with a lot of data (or with data that needs to be loaded/generated) to start instantly. A new example, Lazy Table (4 versions), has been included to demonstrate table lazy loading (read on to learn more about it). Of course, from a usability and user experience point of view, it might still not be a good idea to display millions of rows, yet to display only a few via pagination, like by using the Refined Table custom control that was released and blogged about a while ago.

Glimmer DSL for LibUI 0.6.0 was a final release that included many changes implemented as pre versions previously, including a new C libui version (libui-ng Nov 13, 2022), which includes some low-level fixes and new features for the libui GUI toolkit.

Change Log (both 0.6.1 & 0.6.0):

• examples/lazy_table.rb (4 versions) table lazy loading with a million rows via Enumerator or Enumerator::Lazy to enable instant app startup time
• Support table cell_rows implicit data-binding to a collection of models (only supported an array of arrays before in implicit data-binding)
• Upgrade to libui Ruby gem version 0.1.0.pre.0, which includes a newer C libui alpha release (libui-ng Nov 13, 2022)
• Support table cell_rows Enumerator or Enumerator::Lazy value to do lazy loading of data upon display of rows instead of immediate loading of all table data, thus improving performance of table initial render for very large datasets
• Fix issue with table progress_bar_column not getting updated successfully on Windows if there were dual or triple columns before it.
• Fix issue with table progress_bar_column not getting updated successfully on Windows if data-binding table to an array of models instead of an array of arrays
• Fix issue with table checkbox_column checkbox editing not working in Mac by including a new C libui-ng release
• Fix issue with table checkbox_text_column checkbox editing not working in Mac or Windows by including a new C libui-ng release
• Update examples/basic_table_checkbox.rb to enable editing checkbox values
• Update examples/basic_table_checkbox_text.rb to enable editing checkbox/text values
• [final] Optimize table scrolling performance when having many rows and columns (prevent recalculation of expanded_cell_rows on every cell evaluation). Resolve: #38
• [final] refined_table pagination: false option to disable pagination, but keep filtering.
• [final] Fix issue with Glimmer::LibUI::interpret_color support for [r, g, b, a] Array-based colors, returning [r, g, b] only without alpha value
• [final] Fix issue "Cannot add rows to a table that started empty": #36
• [final] window #open method as alias to #show
• [final] window #focused? read-only property
• [final] Document window on_focus_changed listener
• [final] Update examples/basic_child_window.rb to demo on_focus_changed and focused?
• [final] open_folder support
• [final] examples/control_gallery.rb now includes an "Open Folder" File menu item

Lazy Table example:

Lazy Table (using a well encapsulated Enumerator subclass)

Lazy Table (using a well encapsulated Enumerator::Lazy Subclass)

Glimmer on!!!