Re: GTK+ 2.9.0 released

[Emmanuel Briot <briot adacore com>]

We are really falling far behing the current versions of gtk+.
Should I put on my list to start updating GtkAda ? I believe we are using 
recent versions of gtk+ on all machines now, anyway (maybe not 2.9.0 yet, but 
close enough). 
In particular, all the GtkCellRender* widgets could be useful for GPS.
The GtkNotebook change will also please Florian.


> Overview of Changes from GTK+ 2.8.x to 2.9.0
> ============================================
>
> * GtkStatusIcon, a cross-platform "tray icon" API
>
> * GtkAssistant, a widget for creating multi-step wizards
>
> * GtkLinkButton, a widget that displays a clickable hyperlink
>
> * GtkRecentChooser, widgets to display and select recently used files
>
> * GtkPrintOperation, cross-platform printing support
>
> * A framework for rich text copy and paste and DND
>
> * GtkCellRendererAccel, a cell renderer for key combinations
>
> * GtkCellRendererSpin, a cell renderer which edits numeric values
>   using a spin button
>
> * GtkAction works with named icons in addition to stock icons
>
> * GtkNotebook supports DND, allowing to reorder tabs, move tabs
>   between notebooks and drop tabs on the desktop to open a new window
>
> * GtkTreeView:
>   - Enhanced customizability (e.g. grouping) with the
>     show-expanders and level-indentation properties
>   - Allow to embed the search popup
>   - Better search popup positioning
>
> * GtkFileChooser:
>   - Communication with backends is now asynchronous to avoid
>     blocking on filesystem operations. Due to the required interface
>     changes, the GTK+ ABI version has been bumped to 2.10.0. Third-party
>     filesystem backends have to be ported to the new interface, other
>     modules, such as theme engines, input method modules or pixbuf
> loaders
>     have to be rebuilt so that they are installed in the right place
>     for GTK+ to find them.
>   - The location entry (popped up by C-L) has been integrated in the
>     main dialog.
>
> * Reworked hex Unicode input now requires Ctrl-Shift-U
>
> * Animations can now be globally controlled by settings
>
> * The gtk-touchscreen-mode setting controls a number of changes
>   that make GTK+ work better on touchscreens
>
> * Password entries can optionally show the last entered character
>   for a short while, controlled by the password-hint-timeout setting
>
> * GTK+ can now consult an additional fallback icon theme before
>   falling back to hicolor
>
> * Improved themability:
>   - GTK+ supports symbolic colors, which can be set system-wide
>     using a setting, and can be modified and used in rc files
>     and theme engines
>   - GTK+ sets window type hints on override-redirect windows to
>     help compositing managers apply proper bling
>   - Paths in rc files can now refer to all subclasses of a class
>   - GtkRange steppers will appear insensitive when the slider
>     is at the end; applications which need to handle this case
>     (e.g. to extend the range) can opt out of this.
>   - GtkRange::activate-slider style property allows themes
>     to draw sliders differently while they are being dragged
>   - GtkNotebook::tab-overlap and GtkNotebook::curvature style
>     properties allow more flexible notebook theming
>   - The spacing of buttons around children can be themed with
>     the GtkButton::inner-border style property. Apps can override
>     this per-widget using the corresponding inner-border property
>   - GtkMenu has aquired a horizontal-padding style property
>   - There are style properties for the color of hyperlinks,
>     GtkWidget::link-color and GtkWidget::visited-link-color
>   - GtkTreeview row hinting now takes the selection into account
>   - Scrolling menus can be forced to always display both arrows,
>     using the GtkMenu::double-arrows style property
>   - Separators can be themed using the wide-separators, separator-width
>     and separator-height style properties
>   - GtkTreeView allows more flexible theming with the row-ending-details
>     property
>   - The pixbuf theme engines supports customized drawing of expanders
>     and resize grips
>
> * GDK changes:
>   - OS X backend
>   - DirectFB backend
>   - Closing displays works
>   - gdk_screen_is_composited to check for running compositing manager
>   - Support for Super, Hyper and Meta modifiers
>
> * gdk-pixbuf changes:
>   - Supports saving tiff
>   - Supports loading 16-bit pnm
>   - Doesn't load entire gif animation to get first frame