+
+
+
+DON'T EDIT THIS FILE - changes are now maintained in the reference
+manual, see docs/reference/gtk/changes-*.sgml. Also, when adding a
+change to the manual, you should amend the docs for all
+newly-deprecated features to point to the replacement for that
+feature, and be sure the GTK_DISABLE_DEPRECATED guards are in place in
+the header files. Be sure to add a note to the docs for EACH
+deprecated function; don't just do the changes-*.sgml change.
+
+
+
+
+
Incompatible Changes from GTK+-1.2 to GTK+-2.0:
* gtk_container_get_toplevels() was removed and replaced with
has been changed to include the entire area previously occupied by
the gutter.
+* gtk_paned_set_handle_size() has been removed, in favor of a style property,
+ since this is an option that only makes sense for themes to adjust.
+
* GDK no longer selects OwnerGrabButtonMask for button presses. This means
that the automatic grab that occurs when the user presses a button
will have owner_events = FALSE, so all events are redirected to the
have to be moved into the ::destroy implementations. The reason for doing
this is that all object reference cycles should be broken at destruction
time.
+
+ Because the ::destroy signal can be emitted multiple times, it no longer
+ makes sense to check if a widget has been destroyed using the
+ GTK_OBJECT_DESTROYED() macro, and this macro has been removed. If
+ catching destruction is still needed, it can be done with a signal
+ connection to ::destroy.
* Signal system changes:
The Gtk 2.0 signal merly proxies the GSignal system now.
not supported anymore.
For many of the removed functions, similar variants are available
in the g_signal_* namespace.
+ The GSignal system perfomrs emissions in a slightly different manner than
+ the old GtkSignal code. Signal handlers that are connected to signal "foo"
+ on object "bar" while "foo" is being emitted, will not be called anymore
+ during the emission they were connected within.
* Inserting and deleting text in GtkEntry though functions such
as gtk_entry_insert_text() now leave the cursor at its original
* A number of functions in GDK have been renamed for consistency and
clarity. #defines to provide backwards compatibility have been
- included, but can be disabled by defineing GDK_DISABLE_COMPAT_H.
+ included, but can be disabled by defineing GDK_DISABLE_DEPRECATED.
#define gdk_draw_pixmap gdk_draw_drawable
#define gdk_draw_bitmap gdk_draw_drawable
* GdkColorContext is gone; you probably weren't using it anyway.
Use GdkColormap and the gdk_rgb_* functions instead.
+
+* GtkMenuBar now draws the GtkContainer::border_width space outside
+ the frame, not inside the frame
+
+* In GTK 1.2, if an event handler returned TRUE it prevented
+ propagation of that event to parent widgets. That is, the
+ event signal would not be emitted on parent widgets. In
+ GTK 2.0, if an event handler returns TRUE, the current signal
+ emission on the current widget is immediately stopped. That is,
+ other callbacks connected to the signal will not be invoked.
+
+* gtk_toolbar_new() no longer has arguments. This function
+ was broken because the default GtkToolbarStyle (icons, text, both)
+ is now a user preference, which is overridden when you call
+ gtk_toolbar_set_style(). The constructor forced everyone to
+ override the preference, which was undesirable. So to port
+ your app, decide if you want to force the toolbar style
+ or conform to the user's global defaults; if you want to force
+ it, call gtk_toolbar_set_style().
+
+ The orientation arg was removed from toolbar_new() as well, just
+ because it wasn't very useful and we were breaking the function
+ anyway so had an opportunity to lose it. Call
+ gtk_toolbar_set_orientation() to set toolbar orientation.
+
+* GtkRange/GtkScrollbar/GtkScale were rewritten; this means that most
+ theme engines won't draw them properly, and any custom subclasses of
+ these widgets will need a rewrite (though if you could figure out
+ how to subclass the old version of GtkRange, you have our
+ respect). Also, GtkTroughType is gone.
+
+* The GtkContainer::focus signal/virtualfunction and
+ gtk_container_focus() call were replaced by
+ GtkWidget::focus and gtk_widget_child_focus().
+ The semantics are the same, so you should be able to just
+ replace "container_class->focus = mywidget_focus" with
+ "widget_class->focus = mywidget_focus" and replace
+ gtk_container_focus() calls with gtk_widget_child_focus() calls.
+
+ The purpose of this change was to allow non-containers to have
+ focusable elements.
+
+* gtk_rc_set_image_loader() and gtk_rc_load_image() has been removed, now
+ that GTK+ includes decent image loading capabilities itself.
+
+* An extra GtkSettings argument has been added to
+ gtk_rc_find_pixmap_in_path(). This function is only actually useful
+ from a theme engine during parsing, at which point the GtkSettings
+ is provided.
+
+* The child argument facility in gtkcontainer.c has been converted
+ to a child property facility using GParamSpec and other facilities
+ for GObject.
+
+ - The set_child_arg and get_child_arg virtual methods have been
+ replaced with set_child_property / get_child_property, which
+ work similar to GObject->set_property/get_property.
+
+ - Other removed functions with the replacements:
+
+ gtk_container_add_child_arg_type => gtk_container_class_install_child_property
+ gtk_container_query_child_args => gtk_container_class_list_child_properties
+ gtk_container_child_getv => gtk_container_child_set_property
+ gtk_container_child_setv => gtk_container_child_get_property
+ gtk_container_add_with_args => gtk_container_add_with_properties
+ gtk_container_addv => gtk_container_add / gtk_container_child_set_property
+
+* gdk_image_get() (or rather its replacement,
+ gdk_drawable_get_image()) now handles errors properly by returning
+ NULL, previously it would crash. Also, a window being offscreen is
+ no longer considered an error; instead, the area being contains
+ undefined contents for the offscreen areas. In most cases, code
+ using gdk_image_get() should really be ported to
+ gdk_pixbuf_get_from_drawable().
+
+* gtk_widget_set_usize() has been renamed to
+ gtk_widget_set_size_request(), however the old name still exists
+ unless you define GTK_DISABLE_DEPRECATED.
+
+* gtk_widget_set_uposition() is deprecated; use gtk_window_move(),
+ gtk_fixed_put(), or gtk_layout_put() instead.
+
+* gtk_window_set_policy() is deprecated. To get the effect of
+ "allow_shrink", call gtk_widget_set_size_request(window, 0, 0). To
+ get the effect of "allow_grow", call
+ gtk_window_set_resizable(window, TRUE). You didn't want the effect
+ of auto_shrink, it made no sense. But maybe if you were using it you
+ want to use gtk_window_resize (window, 1, 1) to snap a window back
+ to its minimum size (the 1, 1 will be rounded up to the minimum
+ window size).
+
+* The core GTK+ now takes care of handling mapping, unmapping and
+ realizing the child widgets of containers in
+ gtk_widget_set_parent(). In most cases, this allows container
+ implementations to be simplifid by removing the code in add()
+ methods to map and realize children. However, there are
+ a couple of things to watch out for here:
+
+ - If the parent is realized before the add() happens,
+ gtk_widget_set_parent_window() must be called before
+ gtk_widget_set_parent(), since gtk_widget_set_parent()
+ will realize the child.
+
+ - If a container depended on its children not being mapped
+ unless it did so itself (for example, GtkNotebook only
+ mapped the current page), then the new function
+ gtk_widget_set_child_visible() must be called to keep
+ widgets that should not be mapped not mapped.
+
+ As part of this change, most containers also will no longer need
+ custom implementations of the map() and unmap() virtual
+ functions. The only cases where this is necessary are:
+
+ - For !NO_WINDOW widgets, if you create children of widget->window
+ and don't map them in realize() then you must map them
+ in map(). [ In almost all cases, you can simply map the
+ windows in realize() ]
+
+ - For NO_WINDOW widgets, if you create windows in your realize()
+ method, you must map then in map() and unmap them in unmap().
+
+* gtk_widget_set_default_style (), gtk_widget_push_style (),
+ and gtk_widget_pop_style () have been removed, since they
+ did not work properly with themes and there were better
+ alternatives for modifying the appearance of widgets.
+
+ You should generally use gtk_widget_modify_fg/bg/base/text/font
+ instead.
+
+* gtk_image_new() now takes no arguments and creates an empty GtkImage
+ widget. To create a GtkImage widget from a GdkImage (the least
+ common usage of GdkImage), use gtk_image_new_from_image.
+
+* GTK_SELECTION_EXTENDED is now deprecated, and neither the
+ GtkList/GtkTree nor the GtkCList/GtkCTree support
+ GTK_SELECTION_EXTENDED anymore. However, the old extended behavior
+ replaces MULTIPLE behavior.
+
+* The following variables are no longer exported from GDK. (Other variables
+ are also no longer exported; the following are the ones found used
+ externally in a large sample of GTK+ code.)
+
+ Variable Replacement
+ ======== ===========
+ gdk_null_window_warnings None - did nothing in GTK+-1.2.
+ gdk_leader_window None - private variable
+ gdk_screen gdk_x11_get_default_screen ()
+ gdk_root_window gdk_x11_get_default_root_xwindow ()
+ gdk_root_parent gdk_get_default_root_window ()
+ gdk_error_code/gdk_error_warnings gdk_error_trap_push()/pop()
+ gdk_display_name gdk_get_display ()
+ gdk_wm_delete_window gdk_atom_intern ("WM_DELETE_WINDOW", FALSE)
+ gdk_wm_take_focus gdk_atom_intern ("WM_TAKE_FOCUS", FALSE)
+ gdk_wm_protocols gdk_atom_intern ("WM_PROTOCOLS", FALSE)
+
+* The handling of Colormaps and widgets has been changed:
+
+ - The default colormap for widgets is now the GdkRGB colormap, not
+ the system default colormap. If you try to use resources created for
+ a widget (e.g., widget->style) with a window using the system
+ colormap, errors will result on some machines.
+
+ - gtk_widget_push/pop_colormap() only cause the colormap to be
+ explicitely set on toplevel widgets not on all widgets. The
+ colormap for other widgets (when not set using
+ gtk_widget_set_colormap()), is determined by finding the nearest
+ ancestor with a colormap set on it explicitely, or if that
+ fails, the default colormap.
+
+* The default selected day for GtkCalendar is now the current day in the
+ month, not the first day in the month. The current month and year
+ were already used.
+
+* GDK is no longer put into threaded mode automatically when
+ g_thread_init() has been called. In order to use the
+ global GDK thread mutex with gdk_threads_enter() and
+ gdk_threads_leave(), you must call gdk_threads_init() explicitely.
+
+ If you aren't using GDK and GTK+ functions from multiple threads,
+ there is no reason to call gdk_threads_init().
+
+* The GtkPreviewInfo struct has had its visual and colormap fields
+ removed. Also, gtk_preview_get_cmap() and gtk_preview_get_visual()
+ are deprecated, as GdkRgb works on any colormap and visual. You no
+ longer need to gtk_widget_push_cmap (gtk_preview_get_cmap ()) in
+ your code.
+
+* The GtkBox, GtkTable, and GtkAlignment widgets now call
+ gtk_widget_set_redraw_on_allocate (widget, FALSE); on themselves.
+ If you want to actually draw contents in a widget derived from
+ one of these widgets, you'll probably want to change this
+ in your init() function.
+
+* A number of widgets are now NO_WINDOW widgets (most importantly
+ GtkButton, but also GtkRange and GtkNotebook)
+
+ This has a couple of effects:
+
+ - If you are deriving from one of these widgets, you need to
+ adapt your code appropriately -- for instance, drawing coordinates
+ start from widget->allocation.x, widget->allocation.y.
+
+ - If you are embedding one of these widgets in a custom widget,
+ you must make sure you call gtk_container_propagate_expose()
+ correctly, as you must for any NO_WINDOW widgets.
+
+ GtkFixed is a little special; it is now created by default as
+ a NO_WINDOW widget, but if you do
+
+ gtk_fixed_set_has_window (fixed, TRUE);
+
+ after creating a fixed widget, it will create a window and
+ handle it properly.
+
+* GtkLayout no longer has the xoffset, yoffset fields, which used
+ to store the difference between world and window coordinates for
+ layout->bin_window. These coordinate systems are now always
+ the same.
+
+* gtk_paint_focus(), gtk_draw_focus() and GtkStyle::draw_focus()
+ have been changed a bit:
+
+ - A GtkStateType argument has been added to gtk_paint_focus()
+ - The default implementation of GtkStyle::draw_focus virtual
+ function now draws a focus rectangle whose width is
+ determinted by the GtkWidget::focus-width style property.
+ - The rectangle passed in is the bounding box, instead of
+ the rectangle used in the gdk_draw_rectangle() call, so it is
+ no longer necessary to subtract 1 from the width and height.
+
+
+
+DON'T EDIT THIS FILE - changes are now maintained in the reference
+manual, see docs/reference/gtk/changes-*.sgml. Also, when adding a
+change to the manual, you should amend the docs for all
+newly-deprecated features to point to the replacement for that
+feature, and be sure the GTK_DISABLE_DEPRECATED guards are in place in
+the header files. Be sure to add a note to the docs for EACH
+deprecated function; don't just do the changes-*.sgml change.
projects / ~andy / gtk / blobdiff