forked from AuroraMiddleware/gtk
d69496c060
Wed Oct 25 20:47:41 2000 Tim Janik <timj@gtk.org>
* gtk/gdk-pixbuf-loader.c (gdk_pixbuf_loader_class_init): urg, removed
implementation of gtk_marshal_VOID__INT_INT_INT_INT. if people do that,
couldn't they at least give it a non-standard name?
* gtk/gtktextlayout.c: arg! yet another implementation of
gtk_marshal_VOID__INT_INT_INT_INT(), is this a conspiracy?
* gtk/gtktextbuffer.c: gotcha! captured a vagabonding
gtk_marshal_VOID__INT_POINTER_INT() implementation, braught it back
home. now i know this _is_ a conspiracy.
* gtk/gtkwidget.c (gtk_widget_class_init): marshaller fixups for
::state-changed.
* gtk/gtkaccelgroup.c (gtk_accel_group_create_remove):
(gtk_accel_group_create_add): marshaller signature fixups.
* gtk/gtklistitem.c (gtk_list_item_class_init): signal creation fixups,
pass in GTK_TYPE_SCROLL_TYPE instead of GTK_TYPE_ENUM.
* gtk/gtkobject.[hc]: removed GTK_CONNECTED flag, it's not valid
anymore.
Tue Oct 24 23:59:21 2000 Tim Janik <timj@gtk.org>
* docs/reference/Makefile.am: disabled SUBDIRS for the moment, since
due to the signal system changes, it wouldn't build currently. to
be fixed soon.
* docs/Changes-2.0.txt: GtkSignal/GSignal updates.
* gtk/gtkwidget.c: ::direction_changed takes an enum as argument,
so it needs gtk_marshal_VOID__ENUM() instead of
gtk_marshal_NONE__UINT().
* gdk/gdk*.c: adapted type registration functions.
* gtk/gtkbindings.c:
* gtk/gtkaccelgroup.c: operate on GSignalQuery, GtkSignalQuery is
gone.
* gtk/gtkenums.h: define GtkSignalRunType in terms of GSignalType.
* gtk/gtkobject.c:
(gtk_object_destroy):
(gtk_object_shutdown): fixed recursion guards. basically we have to
catch the case where any of GObject.shutdown() or gtk_object_destroy()
is called during ::destroy, and avoid recursion there.
* gtk/gtktypeutils.c:
* gtk/maketypes.awk: awk-script hackup to provide gtk_type_init() with
boxed_copy/boxed_free. this needs a more general solution based on a
publically installed code-generator utility.
* gtk/gtktypeutils.[hc]: compat aliased GTK_TYPE_BOXED to G_TYPE_BOXED,
glib's gobject has support for that now.
define GtkSignalMarshaller in terms of GSignalCMarshaller.
Mon Oct 23 09:36:42 2000 Tim Janik <timj@gtk.org>
* gtk/gtksignal.[hc]:
* gtk/gtkmarshal.[hc]:
* gtk/Makefile.am: generate marshallers with glib-genmarshal and don't
compile gtkmarshal.c on its own anymore, just include it in gtksignal.c.
removed #include <gtkmarshal.h>s all over the place, gtksignal.h takes
care of that.
* *.c: marshaller name fixups.
* gtk/gtkmarshal.list: added a comment briefing the format.
Sun Oct 22 23:14:39 2000 Tim Janik <timj@gtk.org>
* gtk/gtksignal.[hc]: nuked old implementation. we mostly have
compatibility macros here now. more specifically, most of
the API is preserved (yes, _most_, nonwithstanding the
following exceptions listed, the API is stil lHUGE ;)
things that got removed completely:
GtkSignalQuery, gtk_signal_query(), gtk_signal_n_emissions(),
gtk_signal_n_emissions_by_name(), gtk_signal_handlers_destroy(),
gtk_signal_set_funcs(), gtk_signal_handler_pending_by_id(),
gtk_signal_add_emission_hook(), gtk_signal_add_emission_hook_full(),
gtk_signal_remove_emission_hook().
non-functional functions variants:
gtk_signal_add_emission_hook(), gtk_signal_remove_emission_hook().
the GtkCallbackMarshal argument to gtk_signal_connect_full() is
not supported anymore.
(gtk_signal_compat_matched): new internal function to aid
implementation of the compatibility macros, it provides
functionality to block/unblock/disconnect handlers based
on func/data.
* gtk/gtkenums.h: define GtkSignalRunType in terms of GSignalType,
* *.c: adaptions to new type registration API signatures.
Fri Oct 20 15:26:33 2000 Tim Janik <timj@gtk.org>
* gtk/gtktypeutils.[hc]: removed G_TYPE_GTK_POINTER cludge.
46 lines
1.7 KiB
Plaintext
46 lines
1.7 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
|
|
Image Data in Memory
|
|
|
|
<!-- ##### SECTION Short_Description ##### -->
|
|
Creating a pixbuf from image data that is already in memory.
|
|
|
|
<!-- ##### SECTION Long_Description ##### -->
|
|
<para>
|
|
The most basic way to create a pixbuf is to wrap an existing pixel
|
|
buffer with a #GdkPixbuf structure. You can use the
|
|
gdk_pixbuf_new_from_data() function to do this You need to specify
|
|
the destroy notification function that will be called when the
|
|
data buffer needs to be freed; this will happen when a #GdkPixbuf
|
|
is finalized by the reference counting functions If you have a
|
|
chunk of static data compiled into your application, you can pass
|
|
in #NULL as the destroy notification function so that the data
|
|
will not be freed.
|
|
</para>
|
|
|
|
<para>
|
|
The gdk_pixbuf_new() function can be used as a convenience to
|
|
create a pixbuf with an empty buffer. This is equivalent to
|
|
allocating a data buffer using malloc() and then wrapping it with
|
|
gdk_pixbuf_new_from_data(). The gdk_pixbuf_new() function will
|
|
compute an optimal rowstride so that rendering can be performed
|
|
with an efficient algorithm.
|
|
</para>
|
|
|
|
<para>
|
|
As a special case, you can use the gdk_pixbuf_new_from_xpm_data()
|
|
function to create a pixbuf from inline XPM image data.
|
|
</para>
|
|
|
|
<para>
|
|
You can also copy an existing pixbuf with the gdk_pixbuf_copy()
|
|
function. This is not the same as just doing a gdk_pixbuf_ref()
|
|
on the old pixbuf; the copy function will actually duplicate the
|
|
pixel data in memory and create a new #GdkPixbuf structure for it.
|
|
</para>
|
|
|
|
<!-- ##### SECTION See_Also ##### -->
|
|
<para>
|
|
gdk_pixbuf_finalize().
|
|
</para>
|
|
|