2006-01-28 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols:
* gtk/gtklinkbutton.h:
* gtk/gtklinkbutton.c: Allow to set a global hook function
thats called whenever a link button is clicked.
2006-01-28 Matthias Clasen <mclasen@redhat.com>
More work on GtkAssistant by Carlos Garnacho:
* demos/gtk-demo/Makefile.am:
* demos/gtk-demo/assistant.c: Add a GtkAssistant demo.
* gtk/gtkassistant.c: Handle focus, several small fixes to the
flow computations.
2006-01-27 Federico Mena Quintero <federico@ximian.com>
Fixes bug #328820:
* gtk/gtkfilechooserdefault.c
(gtk_file_chooser_default_class_init): Make GDK_KP_Divide pop up
the location dialog populated to "/".
(tree_view_keybinding_cb): Likewise.
(trap_activate_cb): Likewise.
2006-01-16 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols:
* gtk/gtkradioaction.[hc]: Add a current-value property and a
setter for it. (#322735, Jorn Baayen)
2006-01-09 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols:
* gtk/gtkaction.h:
* gtk/gtkaction.c (gtk_widget_get_action): New function to
get the action for a proxy. (#326288)
2005-12-27 Federico Mena Quintero <federico@ximian.com>
* gtk/gtkfilefilter.c (gtk_file_filter_filter): In the case for
FILTER_RULE_PIXBUF_FORMATS, check that filter_info->mime_type is
not NULL. Fixes bug #317687.
2005-12-19 Matthias Clasen <mclasen@redhat.com>
* gtk/tmpl/gtkstatusicon.sgml: Explicitly document GtkStatusIcon
as a non-widget. (#324181, Maciej Katafiasz)
2005-11-14 Matthias Clasen <mclasen@redhat.com>
* gtk/tmpl/gtkstock.sgml:
* gtk/Makefile.am (HTML_IMAGES): Update stock documentation
to refer to the new icon names.
2005-10-25 Matthias Clasen <mclasen@redhat.com>
* gtk/tmpl/gtkfilechooser.sgml: Don't use deprecated functions
in examples. (#319524, Vincent Untz)
* gtk/gtk-update-icon-cache.xml: Fix a typo. (#319524, Vincent Untz)
2005-09-15 Federico Mena Quintero <federico@ximian.com>
* gtk/tmpl/gtkfilechooser.sgml: List all the default key bindings.
Fix the documentation for the "location-popup" binding signal; its
"path" argument was not listed. Mention a tip to have a crude
form of bookmarks accessible through key bindings.
Tue Sep 13 14:16:27 2005 Tim Janik <timj@imendio.com>
* gtk/tmpl/gtkrc.sgml: fixed wording and typos in some places.
added a new section "Optimizing RC Style Matches".
2005-09-09 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkcellrendererkeys.h:
* gtk/gtkcellrendererkeys.c: Add a cell renderer for displaying
and editing accelerators, a port of EggCellRendererKeys .
* gtk/gtk.symbols:
* gtk/gtk.h:
* gtk/Makefile.am: Add the keys cell renderer.
* tests/Makefile.am:
* tests/testkeys.c: Test GtkCellRendererKeys
2005-08-30 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols:
* gtk/gtkselection.h:
* gtk/gtkselection.c: Add functions which look for text, image
or uri targets in an array of atoms. (#314089, Mark Wielaard)
2005-08-30 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols:
* gtk/gtkwindow.h:
* gtk/gtkwindow.c: Add a deletable property with getter
and setter, to control the close button in the window
frame. (#59718, Havoc Pennington)
2005-08-26 Matthias Clasen <mclasen@redhat.com>
* configure.in: Bump version to 2.9.0
* gdk-pixbuf/gdk-pixbuf.sgml:
* gdk/gdk-docs.sgml:
* gtk/gtk-docs.sgml: Add indices for new
symbols in 2.10
2005-08-23 Matthias Clasen <mclasen@redhat.com>
* gtk/updateiconcache.c: Complain when there is no index.theme file
in the specified directory, unless --force is used. Also add an
--index-only option to create caches without image data.
2005-07-22 Federico Mena Quintero <federico@ximian.com>
* gtk/migrating-checklist.sgml: Call gtk_menu_attach_to_widget()
in the example for the ::popup-menu signal.
2005-07-25 Matthias Clasen <mclasen@redhat.com>
* gtk/gtktreemodelsort.c: Trivial doc fixes.
* gtk/gtktreesortable.c: Talk about comparison functions, not
sort functions in some places. (#311398, Fabrice Bauzac)
2005-07-25 Matthias Clasen <mclasen@redhat.com>
* gtk/tmpl/gtktreemodelsort.sgml: Note that the sorting
function is not guaranteed to be stable. (#311398,
Fabrice Bauzac)
2005-07-21 Federico Mena Quintero <federico@ximian.com>
* gtk/tmpl/gtkfilechooserdialog.sgml (dialog): Expand the Save
example to point out the correct usage of _set_current_folder()
and _set_current_name(), versus _set_filename() alone.
2005-07-15 Federico Mena Quintero <federico@ximian.com>
* gtk/tmpl/gtkfilechooserdialog.sgml: Add a "save" example to the
typical usage.
* gtk/gtk-sections.txt: Add GtkFileChooserConfirmation,
gtk_file_chooser_set_do_overwrite_confirmation,
gtk_file_chooser_get_do_overwrite_confirmation.
* gtk/tmpl/gtkfilechooser.sgml: Document the confirmation signal
and enumeration; provide an example.
2005-07-05 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkmenu.c (gtk_menu_grab_notify): Take window
groups into account. (#309473, Diego Gonzalez)
* gtk/gtkwindow.[hc]: Add a non-exported function to
get the grab widget of a window group.
2005-06-19 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols:
* gtk/gtksizegroup.[hc]: Add an ignore-hidden property
with getter and setter. (#171612, Christian Neumair)
2005-06-17 Matthias Clasen <mclasen@redhat.com>
Support the ICCCM urgency hint. (#61858, Havoc Pennington)
* gtk/gtk.symbols:
* gtk/gtkwindow.[hc]: Add a GtkWindow::urgency-hint property
with getter and setter.
* gdk/gdk.symbols:
* gdk/gdkwindow.h:
* gdk/x11/gdkwindow-x11.c (gdk_window_set_urgency_hint):
Add a setter for the urgency hint.
* gdk/x11/gdkwindow-x11.h (struct _GdkToplevelX11): Store
urgency hint here.
* gdk/x11/gdkwindow-x11.c (update_wm_hints): Set the urgency
hint in the WM_HINTS property when appropriate.
2005-05-18 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkcellrendererpixbuf.c: Support named icons in
cells by adding a icon-name property. (#165777, Anders
Carlsson)
2005-05-18 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols:
* gtk/gtktoolbutton.h:
* gtk/gtktoolbutton.c (gtk_tool_button_set_icon_name)
(gtk_tool_button_get_icon_name): Support named icons in
tool buttons by adding a icon-name property.
2005-05-11 Owen Taylor <otaylor@redhat.com>
* gtk/gtkcolorbutton.c: Use a GtkAlignment rather than a GtkDrawingArea
to draw the swatch in to avoid having an extraneous window.
* gtk/gtkcolorsel.c (color_sample_draw_sample): Actually se tthe
color when !has_opacity.
2005-05-10 Owen Taylor <otaylor@redhat.com>
* gdk/gdkcairo.[ch] gdk/gdkcolor.[ch] gdk/Makefile.am: Add source
files for Cairo convenience functionality.
* gdk/gdkcairo.h (gdk_cairo_rectangle, gdk_cairo_region): Add a
convenience functions to add GdkRectangle, GdkRegion to a cairo path.
* gdk/gdkwindow.c gdk/gdkgc.c gtk/gtkcolorsel.c gtk/gtkiconview.c
gtk/gtkstyle.c: Use gdk_cairo_rectangle/region().
* gdk/gdkcairo.[ch] gdk/gdkdrawable.h gdk/gdkdraw.c: Rename
gdk_drawable_create_cairo_context() to gdk_cairo_create().
* gdk/gdkcairo.c gdk/gdkpixbuf.h gdk/gdkpixbuf-render.c:
Rename gdk_pixbuf_set_as_cairo_source() to
gdk_cairo_set_source_pixbuf().
* gdk/gdkdraw.c gdk/gdkpango.c gtk/gtkcolorsel.c gtk/gtkhruler.c
gtk/gtkhsv.c gtk/gtkiconview.c gtk/gtkstyle.c gtk/gtkvruler.c:
Adjust for renames.
* gdk/gdk.symbols: Update.
* gtk/gtkwidget.c (gtk_widget_queue_shallow_draw): Fix
coordinate system problem that was causing the wrong portions
to be invalidated.
* gtk/gtkcellrenderer.c (gtk_cell_renderer_render)
gtk/gtkcellrendererpixbuf.c (gtk_cell_renderer_pixbuf_render)
gtk/gtkcellrendererprogress.c (gtk_cell_renderer_progress_render)
gtk/gtkcellrenderertext.c (gtk_cell_renderer_text_render)
gtk/gtkcellview.c (gtk_cell_view_expose)
gtk/gtkdnd.c (gtk_drag_highlight_expose)
gtk/gtkentry.c (gtk_entry_draw_text)
gtk/gtktextview.c (text_window_invalidate_rect): Some cairoization.
* gtk/gtkcalendar.[ch]: Beat into something roughly resembling
GTK+ style ... use instance-private data and standard names for
private structure, etc. Move function docs inline.
* gtk/gtkcalendar.[ch]: Switch to drawing everything in
expose. Switch drawing to Cairo.
* gtk/gtkcalendar.c (gtk_calendar_freeze): Deprecate
gtk_calendar_freeze/thaw
2005-05-06 Matthias Clasen <mclasen@redhat.com>
* tests/testiconview.c: Test DND.
* gtk/gtk.symbols:
* gtk/gtkiconview.[hc]: Add DND support similar to the DND
support in the tree view. (#150270)
2005-04-07 Matthias Clasen <mclasen@redhat.com>
* gtk/tmpl/gtkenums.sgml: Make the docs of GKT_SELECTION_MULTIPLE
more accurate by making them more vague. (#167088,
Ken Siersma)
2005-04-04 Matthias Clasen <mclasen@redhat.com>
Allow completion popups to be wider than the entry. (#131916,
Ross Burton)
* gtk/gtkentrycompletion.[hc]: Add a boolean popup-set-width property.
* gtk/gtkentrycompletion.c (_gtk_entry_completion_resize_popup):
Don't force the popup to have the same width as the entry if
popup-set-width is FALSE.
* gtk/gtk.symbols: Add new functions.
2005-02-11 Matthias Clasen <mclasen@redhat.com>
Support vertical menubars (#166632):
* gtk/gtkenums.h (GtkPackDirection): New enumeration for pack
directions, with values for left-to-right, right-to-left,
top-to-bottom and bottom-to-top.
* gtk/gtk.symbols:
* gtk/gtkmenubar.h:
* gtk/gtkmenubar.c: Add two properties, pack-direction and
child-pack-direction, which specify how children and
grandchildren of a menubar are packed, with getters and setters.
* gtk/gtkmenubar.c (gtk_menu_bar_set_property):
(gtk_menu_bar_get_property): Implement set_property and get_property.
* gtk/gtkmenubar.c (gtk_menu_bar_size_request):
(gtk_menu_bar_size_allocate): Take pack direction into account.
* gtk/gtkmenubar.c (gtk_menu_bar_move_current): Implement
move_current here move all the menubar-specific direction
tweaking from the generic menushell implementation here.
* gtk/gtkmenu.c (gtk_menu_move_current): Move menu-specific
direction tweaking from the generic menushell implementation here.
* gtk/gtkmenuitem.c (gtk_menu_item_size_request):
(gtk_menu_bar_size_allocate): Take pack direction into account.
* gtk/gtkimagemenuitem.c (gtk_image_menu_item_size_request)
(gtk_image_menu_item_size_allocate):
(gtk_image_menu_item_toggle_size_request): Take child pack
direction into account and pack the image vertically if
necessary.
* gtk/gtkmenushell.c (gtk_menu_shell_real_select_item):
Set the submenu direction to left-right for menuitems in
vertical menubars.
(gtk_real_menu_shell_move_current): Simplify by moving
direction tweaking to menu- and menubar-specific
implementations. Take pack direction into account when
doing fallbacks.
* tests/testmenubars.c: Test menubars in various packing
direction combinations.
* tests/Makefile.am (noinst_PROGRAMS): Add testmenubars.
2005-02-08 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkuimanager.c (start_element_handler): Accept
the "expand" attribute and set a flag in the node if it
is set to "true".
(update_node): If the expand flag is set, make separator
toolitems non-drawn and expanding. (#166489, Christian Persch)
2005-02-03 Owen Taylor <otaylor@redhat.com>
* gdk/gdkdrawable.[ch] gdkpixmap.c gdkwindow.c: Add
gdk_drawable_set_cairo_target().
* tests/testtreeflow.c (enum): Use grand not rand as a variable
name because one of the cairo headers is pulling in stdlib.h.
* tests/testcairo.c tests/Makefile.am: Add a simple cairo based
example.
* configure.in: Bump release to 2.7.0, gtk_binary_version to 2.7.0.
* Require libpangocairo for all backends.
2005-02-03 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols:
* gtk/gtkstock.h:
* gtk/gtkstock.c (gtk_stock_set_translate_func):
New function which allows to change the function used for
translation stock labels, on a per-domain basis. Use this
functionality to switch the GTK+ stock items to use Q_()
prefixed msgids. (#166179, Funda Wang)
2005-01-06 James M. Cape <jcape@ignore-your.tv>
* gtk/gtkfilechooserbutton.c (gtk_file_chooser_button_new)
(gtk_file_chooser_button_new_with_backend): Use default title if
NULL is passed.
* docs/reference/gtk/tmpl/gtkfilechooserbutton.sgml: Make examples
match API.
Tue Jan 4 16:52:14 2005 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_button_event):
only reorder on button 1, part of #141937
2004-12-14 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols: Add new symbols.
* gtk/gtkiconview.[hc]: Make the icon view lay out its
items in a grid, allocating multiple grid cells to oversized
items. Also convert hardwired spacing constants into
properties. (#152483)
2004-12-13 Matthias Clasen <mclasen@redhat.com>
* gtk/gtklabel.[hc]: Add a max-width-chars property, which can
be used to specify the width of the label in characters, while
still allowing it to fall short of this length if the text
is shorter. (#155944, Christian Persch)
* gtk/gtk.symbols: Add new symbols.
2004-12-09 Matthias Clasen <mclasen@redhat.com>
Fix#145463, reported by Michael Natterer.
* gtk/gtkcellrenderer.h (struct _GtkCellRenderer): Add an
editing flag to keep track of when editing is done.
* gtk/gtkcellrenderer.h:
* gtk/gtkcellrenderer.c (gtk_cell_renderer_stop_editing): New
function to replace gtk_cell_renderer_editing_canceled().
Deprecate gtk_cell_renderer_editing_canceled().
* gtk/gtkcellrenderertext.c (gtk_cell_renderer_text_editing_done):
* gtk/gtkcellrenderercombo.c (gtk_cell_renderer_combo_editing_done):
* gtk/gtktreeview.c (gtk_tree_view_stop_editing):
Use gtk_cell_renderer_stop_editing().
2004-12-08 Matthias Clasen <mclasen@redhat.com>
Fix#111031, reported by Padraig O'Briain:
* gtk/gtktextlayout.h:
* gtk/gtktextlayout.c (gtk_text_layout_get_iter_at_position):
Add a variant of gtk_text_layout_get_iter_at_pixel() which
returns the character at the position, not the closest
cursor position.
* gtk/gtktextview.h:
* gtk/gtktextview.c (gtk_text_view_get_iter_at_position):
Add a variant of gtk_text_view_get_iter_at_location() which
returns the character at the position, not the closest
cursor position.
2004-11-29 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkcombobox.c (cell_view_is_sensitive): Don't call
gtk_cell_view_set_cell_data() from here.
* gtk/gtk.symbols: Remove gtk_cell_view_set_cell_data()
* gtk/gtkcellview.c (gtk_cell_view_get_cell_renderers): Call
gtk_cell_view_set_cell_data() from here.
(gtk_cell_view_set_cell_data): Make static.
* gtk/gtkcombobox.c (gtk_combo_box_menu_popup): Make menu mode
work better when resizing the combo box.
Sat Nov 20 16:01:51 2004 Owen Taylor <otaylor@redhat.com>
* gdk/gdk-sections.txt gdk/gdk.types : Update for GdkPangoRenderer
* gdk/Makefile.am gdk/images/rotated-text.png:
* gdk/tmpl/pango_interaction.sgml: Add a long
description and an extensive example (more or less the same as
demos/gtk-demo/rotated_text.c)
2004-11-20 Matthias Clasen <mclasen@redhat.com>
* gtk/gtk.symbols:
* gtk/gtkdialog.h:
* gtk/gtkdialog.c (gtk_dialog_set_alternative_button_order_from_array):
Provide a non-varargs variant of gtk_dialog_set_alternative_button_order()
for language bindings. (#158798, John Finlay)
Tue Nov 16 00:08:07 2004 Jonathan Blandford <jrb@redhat.com>
* docs/tools/widgets.c: Update so that toplevel windows accomodate
for the titlebar when sizing. Also clean up statusbar
* docs/reference/gtk/images/*png: update
2004-11-09 Matthias Clasen <mclasen@redhat.com>
Avoid resizing GtkStatusbar if the text of the label
changes (#90955, He Qiangqiang, fix proposed by
Owen Taylor, patch by Christian Persch)
* gtk/gtklabel.[hc]: Add a boolean single-line-mode property
which causes the label height not to depend on the actual
text, but only on the font.
* gtk/gtkstatusbar.c (gtk_statusbar_init): Turn on
single-line-mode for the label.
2004-11-07 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkfilefilter.h:
* gtk/gtkfilefilter.c (gtk_file_filter_add_pixbuf_formats):
New convenience function to add a filter for image files
which can be loaded by GdkPixbuf. (#145388, Anders Carlsson)
* tests/testfilechooser.c: Test the image filter.
2004-11-06 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkfilechooserbutton.c (gtk_file_chooser_button_set_property):
Don't support CREATE_FOLDER and SAVE for now. UI authorities
object to it. (#157384, Seth Nickell)
2004-11-04 Bastien Nocera <hadess@hadess.net>
* gtk/gtkiconfactory.c: (get_default_icons): Make sure the RTL
variants are used for media icons
* gtk/stock-icons/Makefile.am: update following the addition of
the 2 Play icon RTL variants
* gtk/stock-icons/stock_media_play_rtl_16.png: added
* gtk/stock-icons/stock_media_play_rtl_24.png: added
2004-11-04 Bastien Nocera <hadess@hadess.net>
* gtk/tmpl/gtkstock.sgml: add RTL variants for all the media icons
needing it
2004-11-03 Matthias Clasen <mclasen@redhat.com>
* gtk/migrating-GtkIconView.sgml: Add a first version of
a GnomeIconList --> GtkIconView migration chapter.
2004-11-01 Matthias Clasen <mclasen@redhat.com>
* gtk/question_index.sgml: Add a "ref and sink" question.
(#156865, Philip Langdale, text based on a comment by Owen
Taylor)
* gtk/tmpl/gtkrc.sgml: Document im_module_file and settings
assignments as toplevel statements.
2004-10-31 Matthias Clasen <mclasen@redhat.com>
Add api for image transfer via copy-and-paste (#156408)
* gtk/gtkclipboard.c (gtk_clipboard_set_image)
(gtk_clipboard_request_image, gtk_clipboard_wait_for_image)
(gtk_clipboard_wait_is_image_available): New functions for image
transfer.
* gtk/gtkselection.h:
* gtk/gtkselection.c (gtk_selection_data_targets_include_image):
New function, similar to gtk_selection_data_targets_include_text().
2004-10-29 Matthias Clasen <mclasen@redhat.com>
* gtk/question_index.sgml: Move the "tail" question to the
text view section.
Add an entry for "why are my types not registered". (#156809,
Q by Salvador Fandiño, A by Owen Taylor)
2004-10-25 Carlos Garnacho Parro <carlosg@gnome.org>
Fix for #118764, David Bordoley:
* gtk/gtkmessagedialog.[ch]
(gtk_message_dialog_format_secondary_text),
(gtk_message_dialog_format_secondary_format): API additions to
create HIG-like dialogs
* demos/gtk-demo/dialog.c: Use the new API in the example
* docs/reference/gtk/gtk-sections.txt:
* docs/reference/gtk/tmpl/gtkmessagedialog.sgml: documented API
additions
2004-10-25 Matthias Clasen <mclasen@redhat.com>
Add a public setting for button ordering (#74669, Owen Taylor)
* gtk/gtksettings.c (gtk_settings_class_init): Add a
gtk-alternative-button-order setting.
* gtk/gtkdialog.h:
* gtk/gtkdialog.c (gtk_alternative_dialog_button_order): A
getter for the alternative button order setting.
* gtk/gtkdialog.c (gtk_dialog_set_alternative_button_order):
New function to install an alternative button order for a
dialog.
* gtk/gtkfilesel.c (gtk_file_selection_init):
* gtk/gtkfontsel.c (gtk_font_selection_dialog_init):
* gtk/gtkmessagedialog.c (gtk_message_dialog_add_buttons):
* gtk/gtkcolorseldialog.c (gtk_color_selection_dialog_init):
* gtk/gtkfilechooserdefault.c (location_popup_handler):
Set up an alternative button order.
2004-10-25 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkimage.h:
* gtk/gtkimage.c (gtk_image_new_from_icon_name)
(gtk_image_set_from_icon_name, gtk_image_get_icon_name)
(gtk_image_set_pixel_size, gtk_image_get_pixel_size): Add a
new type GTK_IMAGE_ICON_NAME for named icons, update the size
and content of stock, icon set and named icon images upon style
changes, and allow to set a fixed pixel size for named icon
images. (#155688, James Henstridge)
* tests/testimage.c: Test application for theming behaviour of
different image types and for image dnd.
Sun Oct 24 02:54:36 2004 Jonathan Blandford <jrb@redhat.com>
* gtk/gtk.types: Add GtkAboutDialog and GtkFileChooserButton
* gtk/tmpl/GtkFileChooserButton.sgml: Write docs
* gtk/tmpl/GtkListStore.sgml: Update performance comment now that
we use GSequence.
* gtk/visual_index.xml: Fix up a couple of errors.
* gtk/images/*png: update
Sun Oct 24 02:56:43 2004 Jonathan Blandford <jrb@redhat.com>
* docs/tools/widgets.c: Update GtkFileChooserButton doc shot.
Thu Oct 21 15:01:09 2004 Owen Taylor <otaylor@redhat.com>
#155952
* gtk/gtkentry.c: Fix checking the wrong position for
the backspace_deletes_character PangoLogAttr.
* gtk/gtktextbuffer.[ch] gtk/gtk.symbols (gtk_text_buffer_backspace):
Move backspace logic from GtkTextView to here, check
backspace_deletes_char.
* gtk/gtktextview.c: Use gtk_text_buffer_backspace().
2004-10-19 Matthias Clasen <mclasen@redhat.com>
Implement icon theme caching. (#154034, Martijn Vernooij,
caching schema proposed by Owen Taylor, initial implementation
by Anders Carlsson)
* gtk/gtkdebug.h:
* gtk/gtkmain.c: Add a "icontheme" debug flag.
* gtk/Makefile.am (gtk_c_sources): Add gtkiconcache.c
(gtk_private_h_sources): Add gtkiconcache.h
(bin_PROGRAMS): Add gtk-update-icon-cache
* gtk/gtkicontheme.c: Use icon caches if they are available.
Currently, GTK+ uses the cache to get information about the
available sizes, image file formats and .icon files. The
actual image data, and the .icon file contents are not
cached yet.
* gtk/updateiconcache.c: A cmdline utility for generating
icon cache files.
* gtk/gtkiconcache.h:
* gtk/gtkiconcache.c: The glue code to mmap an icon cache
file and manage the information it contains.
