Features

• Built on top of powerful JCore library.

• Flexible messaging system so objects can receive notification of changes in other objects. This can be used to implement Model-View-Controller designs.

• Graphical layout editor that generates code.

• Drag-and-Drop. (XDND version 4)

• User-configurable button bar that cooperates with any particular menu bar.

• Support for the basic application level objects:
  • Director (data in window doesn't need to be saved)
  • Abstract document (data in window needs to be saved)
  • File document (functionality for saving data in a file)
  • Dialog (both modal and modeless; data is automatically validated when entered)

• Support for interacting documents.
  (e.g. One document can require that another document be opened and remain open.)

• User preferences management via JPrefsManager and the mix-in class JPrefObject.

• True support for multiple document applications. When the program is already running, any new invocation of the program contacts the existing process instead of starting a new one.
  (This is what we mean by a Multiple Document Interface, not Microsoft's ridiculous definition that requires reimplementing the window manager to provide windows within windows.)

• Support for all the standard widgets:
  • Buttons
  • Checkboxes
  • Radio buttons
  • Hierarchical menus
    • Scrolls if not all the menu items can fit on the screen at once.
    • Submenu remains open as long as the mouse is moving towards it, even if the path crosses other items on the parent menu.
    • Unlimited submenu depth (but be nice and don't drive your users nuts by abusing this!)

  • Input fields with an automated system for validating what is entered
    • text
    • integer
    • floating point
    • file
    • directory
    • regex
    • password
    • path/file (with tab completion)

  • Useful scrollbars
  • Partitions that users can drag to adjust space allocation in a window
  • Windows-style tabs that allow the user to switch between different panels within a single window

• Easy to create customized widgets.

• Powerful, flexible docking system gives users the option to arrange program windows any way they want within multiple dock windows, with almost no effort required by the developer!

• Dynamic window layout. The application can show, hide, create, destroy, and resize widgets even while the window is visible.

• Automated geometry management of all widgets, so each widget can adjust its size and/or position based on the size of its enclosure.

• Searchable, hypertext on-line help system.

• Hints. (the yellow boxes that explain what you are pointing at)

• Add-on library provides 3D graphics support via the Mesa implementation of OpenGL.

• Text editor class that supports fully styled text (i.e. each character can have a separate style).

• Powerful 2D table class suite. Includes support for in-place editing of cell contents. Great for anything from spreadsheets to board games.

• Support for several layouts in the same window, with each layout selectable via a "card file index." This index can be any widget that presents a set of choices, such as a menu, a table, or the row of tabs used in Windows95®.

• Add-on library provides suite of classes for plotting data and functions.

• Add-on library provides suite of classes for storing and displaying trees using the Macintosh® System 7 paradigm.

• Built in, extensible file browser object.
  • Save File dialog supports the Direct Save protocol.

• Uniform interface for drawing to the screen, images for offscreen storage, and PostScript and Encapsulated PostScript (EPS) files (for printing).
  • Uniform interface to XImages (client side storage) and Pixmaps (server side storage)
  • Read and write JPEG, PNG, XPM, and XBM files.
  • Support for color approximation and preemptive color approximation.

• Integrated support for the X selection mechanism (clipboard).
  • Choice of Macintosh Copy or X Selection model.
  • Persistent so copied data is never lost.
  • History of previous data to insure that remote applications can get the data they requested, no matter how slow the network connection is.
  • Transparent support of the incremental selection transfer protocol, so the user can copy and paste arbitrarily large amounts of data.

• A single application can connect to an unlimited number of X servers.

• Networking and process support is integrated into the event loop.
  • JMessageProtocol supports any ASCII message based protocol, so you'll never have to write any code below decoding complete messages.

• Support for real-time applications via a safe mechanism for overriding the event loop.

• Cooperative multi-tasking eliminates the need for threads. This provides support for periodic tasks such as animation and safety saving the user's data.

• Object to display progress of lengthy operation.

• Animated cursors and images.

• JStringManager allows storing strings in separate data files, so they can easily be translated and changed without recompiling.
  • Full support for European languages
  • Support for user-customizable menu shortcuts by editing the menu items stored in the string database
  • Built-in support for toggling between Macintosh and Windows style menu shortcuts

• Designed to work with multiple virtual desktops and both Click-to-Focus and Point-to-Focus.

• Support for scrolling via wheel mice.

• Support for Xinerama.

• Automatically works with session managers (e.g. Gnome and KDE) once you override JXApplication::CleanUpBeforeSuddenDeath().

• 64-bit clean.