forked from AuroraMiddleware/gtk
e63d08e43f
Sun Jun 28 04:29:10 1998 Tim Janik <timj@gtk.org>
* gtk/gtktypeutils.c (gtk_type_class_init): call the base class init
fucntions from all parent types upon class initialization.
* gtk/gtkcontainer.c:
(gtk_container_get_type): announce gtk_container_base_class_init to
the type system.
(gtk_container_base_class_init): new function to feature base class
initialization.
(gtk_container_get_child_arg):
(gtk_container_set_child_arg): call the GtkContainerClass get_child_arg
and set_child_arg methods of the class indicated through the argument
name.
* gtk/gtkobject.c:
(gtk_object_base_class_init): new function to feature base class
initialization.
(gtk_object_init_type): announce gtk_object_base_class_init to the type
system.
(gtk_object_class_init): setup the get_arg and set_arg pointers for
GtkObjectClass.
(gtk_object_setv):
(gtk_object_getv): call the GtkObjectClass get_arg and set_arg methods,
instead of bothering the type system with this.
* gtk/gtkaccellabel.c:
* gtk/gtkbutton.c:
* gtk/gtkradiobutton.c:
* gtk/gtktable.c:
* gtk/gtktogglebutton.c:
* gtk/gtktipsquery.c:
* gtk/gtkbox.c:
* gtk/gtkpacker.c:
* gtk/gtkwidget.c:
* gtk/gtkwindow.c:
* gtk/gtkframe.c:
* gtk/gtkmisc.c:
* gtk/gtklabel.c: set the object_class->{g|s}et_arg pointers to the
corresponding gtk_*_{g|s]et_arg functions and updated the gtk_*_get_type
functions wrt GtkTypeInfo initialization. changed a lot of the set/get
arg functions to take a GtkObject argument.
gtk/gtkadjustment.c:
gtk/gtkalignment.c:
gtk/gtkarrow.c:
gtk/gtkaspectframe.c:
gtk/gtkbbox.c:
gtk/gtkbin.c:
gtk/gtkcheckbutton.c:
gtk/gtkcheckmenuitem.c:
gtk/gtkclist.c:
gtk/gtkcolorsel.c:
gtk/gtkcombo.c:
gtk/gtkctree.c:
gtk/gtkcurve.c:
gtk/gtkdata.c:
gtk/gtkdialog.c:
gtk/gtkdrawingarea.c:
gtk/gtkeditable.c:
gtk/gtkentry.c:
gtk/gtkeventbox.c:
gtk/gtkfilesel.c:
gtk/gtkfixed.c:
gtk/gtkfontsel.c:
gtk/gtkgamma.c:
gtk/gtkhandlebox.c:
gtk/gtkhbbox.c:
gtk/gtkhbox.c:
gtk/gtkhpaned.c:
gtk/gtkhruler.c:
gtk/gtkhscale.c:
gtk/gtkhscrollbar.c:
gtk/gtkhseparator.c:
gtk/gtkimage.c:
gtk/gtkinputdialog.c:
gtk/gtkitem.c:
gtk/gtkitemfactory.c:
gtk/gtklist.c:
gtk/gtklistitem.c:
gtk/gtkmenu.c:
gtk/gtkmenubar.c:
gtk/gtkmenuitem.c:
gtk/gtkmenushell.c:
gtk/gtknotebook.c:
gtk/gtkoptionmenu.c:
gtk/gtkpaned.c:
gtk/gtkpixmap.c:
gtk/gtkpreview.c:
gtk/gtkprogressbar.c:
gtk/gtkradiomenuitem.c:
gtk/gtkrange.c:
gtk/gtkruler.c:
gtk/gtkscale.c:
gtk/gtkscrollbar.c:
gtk/gtkscrolledwindow.c:
gtk/gtkseparator.c:
gtk/gtkspinbutton.c:
gtk/gtkstatusbar.c:
gtk/gtktext.c:
gtk/gtktoolbar.c:
gtk/gtktooltips.c:
gtk/gtktree.c:
gtk/gtktreeitem.c:
gtk/gtkvbbox.c:
gtk/gtkvbox.c:
gtk/gtkviewport.c:
gtk/gtkvpaned.c:
gtk/gtkvruler.c:
gtk/gtkvscale.c:
gtk/gtkvscrollbar.c:
gtk/gtkvseparator.c: updated the GtkTypeInfo initialization code to
match the modified GtkTypeInfo structure.
405 lines
13 KiB
C
405 lines
13 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GTK_OBJECT_H__
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#define __GTK_OBJECT_H__
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#include <gtk/gtkenums.h>
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#include <gtk/gtktypeutils.h>
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#include <gtk/gtkdebug.h>
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#ifdef __cplusplus
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extern "C" {
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#pragma }
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#endif /* __cplusplus */
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/* The debugging versions of the casting macros make sure the cast is "ok"
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* before proceeding, but they are definately slower than their less
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* careful counterparts as they involve no less than 3 function calls.
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*/
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#ifdef GTK_NO_CHECK_CASTS
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#define GTK_CHECK_CAST(obj,cast_type,cast) ((cast*) (obj))
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#define GTK_CHECK_CLASS_CAST(klass,cast_type,cast) ((cast*) (klass))
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#else /* !GTK_NO_CHECK_CASTS */
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#define GTK_CHECK_CAST(obj,cast_type,cast) \
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((cast*) gtk_object_check_cast ((GtkObject*) (obj), (cast_type)))
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#define GTK_CHECK_CLASS_CAST(klass,cast_type,cast) \
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((cast*) gtk_object_check_class_cast ((GtkObjectClass*) (klass), (cast_type)))
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#endif /* GTK_NO_CHECK_CASTS */
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/* Determines whether `obj' and `klass' are a type of `otype'.
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*/
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#define GTK_CHECK_TYPE(obj,otype) ( \
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gtk_type_is_a (((GtkObject*) (obj))->klass->type, (otype)) \
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)
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#define GTK_CHECK_CLASS_TYPE(klass,otype) ( \
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gtk_type_is_a (((GtkObjectClass*) (klass))->type, (otype)) \
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)
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/* Macro for casting a pointer to a GtkObject or GtkObjectClass pointer.
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* The second portion of the ?: statments are just in place to offer
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* descriptive warning message.
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*/
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#define GTK_OBJECT(object) ( \
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GTK_IS_OBJECT (object) ? \
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(GtkObject*) (object) : \
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(GtkObject*) gtk_object_check_cast ((GtkObject*) (object), GTK_TYPE_OBJECT) \
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)
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#define GTK_OBJECT_CLASS(klass) ( \
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GTK_IS_OBJECT_CLASS (klass) ? \
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(GtkObjectClass*) (klass) : \
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(GtkObjectClass*) gtk_object_check_class_cast ((GtkObjectClass*) (klass), GTK_TYPE_OBJECT) \
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)
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/* Macro for testing whether `object' and `klass' are of type GTK_TYPE_OBJECT.
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*/
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#define GTK_IS_OBJECT(object) ( \
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(object) != NULL && \
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GTK_IS_OBJECT_CLASS (((GtkObject*) (object))->klass) \
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)
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#define GTK_IS_OBJECT_CLASS(klass) ( \
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(klass) != NULL && \
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GTK_FUNDAMENTAL_TYPE (((GtkObjectClass*) (klass))->type) == GTK_TYPE_OBJECT \
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)
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/* Macros for extracting various fields from GtkObject and GtkObjectClass.
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*/
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#define GTK_OBJECT_TYPE(obj) (GTK_OBJECT (obj)->klass->type)
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#define GTK_OBJECT_SIGNALS(obj) (GTK_OBJECT (obj)->klass->signals)
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#define GTK_OBJECT_NSIGNALS(obj) (GTK_OBJECT (obj)->klass->nsignals)
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/* GtkObject only uses the first 4 bits of the flags field.
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* Derived objects may use the remaining bits. Though this
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* is a kinda nasty break up, it does make the size of
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* derived objects smaller.
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*/
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typedef enum
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{
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GTK_DESTROYED = 1 << 0,
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GTK_FLOATING = 1 << 1,
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GTK_CONNECTED = 1 << 2,
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GTK_RESERVED_2 = 1 << 3,
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GTK_OBJECT_FLAG_LAST = GTK_RESERVED_2
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} GtkObjectFlags;
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/* Macros for extracting the object_flags from GtkObject.
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*/
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#define GTK_OBJECT_FLAGS(obj) (GTK_OBJECT (obj)->flags)
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#define GTK_OBJECT_DESTROYED(obj) (GTK_OBJECT_FLAGS (obj) & GTK_DESTROYED)
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#define GTK_OBJECT_FLOATING(obj) (GTK_OBJECT_FLAGS (obj) & GTK_FLOATING)
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#define GTK_OBJECT_CONNECTED(obj) (GTK_OBJECT_FLAGS (obj) & GTK_CONNECTED)
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/* Macros for setting and clearing bits in the object_flags field of GtkObject.
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*/
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#define GTK_OBJECT_SET_FLAGS(obj,flag) G_STMT_START{ (GTK_OBJECT_FLAGS (obj) |= (flag)); }G_STMT_END
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#define GTK_OBJECT_UNSET_FLAGS(obj,flag) G_STMT_START{ (GTK_OBJECT_FLAGS (obj) &= ~(flag)); }G_STMT_END
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/* GtkArg flag bits for gtk_object_add_arg_type
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*/
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typedef enum
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{
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GTK_ARG_READABLE = 1 << 0,
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GTK_ARG_WRITABLE = 1 << 1,
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GTK_ARG_CONSTRUCT = 1 << 2,
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GTK_ARG_CHILD_ARG = 1 << 3,
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GTK_ARG_MASK = 0x0f,
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/* aliases
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*/
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GTK_ARG_READWRITE = GTK_ARG_READABLE | GTK_ARG_WRITABLE
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} GtkArgFlags;
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typedef struct _GtkObjectClass GtkObjectClass;
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/* GtkObject is the base of the object hierarchy. It defines
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* the few basic items that all derived classes contain.
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*/
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struct _GtkObject
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{
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/* A pointer to the objects class. This will actually point to
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* the derived objects class struct (which will be derived from
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* GtkObjectClass).
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*/
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GtkObjectClass *klass;
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/* 32 bits of flags. GtkObject only uses 4 of these bits and
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* GtkWidget uses the rest. This is done because structs are
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* aligned on 4 or 8 byte boundaries. If a new bitfield were
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* used in GtkWidget much space would be wasted.
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*/
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guint32 flags;
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/* reference count.
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* refer to the file REFCOUNTING on this issue.
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*/
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guint ref_count;
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/* The list of signal handlers and other data
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* fields for this object.
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*/
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gpointer object_data;
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};
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/* GtkObjectClass is the base of the class hierarchy. It defines
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* the basic necessities for the class mechanism to work. Namely,
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* the "type", "signals" and "nsignals" fields.
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*/
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struct _GtkObjectClass
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{
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/* The type identifier for the objects class. There is
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* one unique identifier per class.
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*/
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GtkType type;
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/* The signals this object class handles. "signals" is an
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* array of signal ID's.
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*/
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guint *signals;
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/* The number of signals listed in "signals".
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*/
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guint nsignals;
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/* The number of arguments per class.
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*/
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guint n_args;
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/* Non overridable class methods to set and get per class arguments */
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void (*set_arg) (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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void (*get_arg) (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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/* The functions that will end an objects life time. In one way ore
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* another all three of them are defined for all objects. If an
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* object class overrides one of the methods in order to perform class
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* specific destruction then it must still invoke its superclass'
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* implementation of the method after it is finished with its
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* own cleanup. (See the destroy function for GtkWidget for
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* an example of how to do this).
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*/
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void (* shutdown) (GtkObject *object);
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void (* destroy) (GtkObject *object);
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void (* finalize) (GtkObject *object);
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};
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/* For the purpose of user signals we need the signal function
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* and signal marshaller signatures already in this place.
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*/
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#define GTK_SIGNAL_FUNC(f) ((GtkSignalFunc) f)
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typedef void (*GtkSignalFunc) (void);
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typedef void (*GtkSignalMarshaller) (GtkObject *object,
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GtkSignalFunc func,
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gpointer func_data,
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GtkArg *args);
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/* Get the type identifier for GtkObject's.
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*/
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GtkType gtk_object_get_type (void);
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/* Append "signals" to those already defined in "class".
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*/
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void gtk_object_class_add_signals (GtkObjectClass *klass,
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guint *signals,
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guint nsignals);
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/* Append a user defined signal without default handler to a class.
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*/
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guint gtk_object_class_user_signal_new (GtkObjectClass *klass,
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const gchar *name,
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GtkSignalRunType signal_flags,
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GtkSignalMarshaller marshaller,
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GtkType return_val,
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guint nparams,
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...);
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guint gtk_object_class_user_signal_newv (GtkObjectClass *klass,
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const gchar *name,
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GtkSignalRunType signal_flags,
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GtkSignalMarshaller marshaller,
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GtkType return_val,
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guint nparams,
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GtkType *params);
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/* Outdated */
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guint gtk_object_class_add_user_signal (GtkObjectClass *klass,
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const gchar *name,
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GtkSignalMarshaller marshaller,
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GtkType return_val,
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guint nparams,
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...);
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GtkObject* gtk_object_new (GtkType type,
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...);
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GtkObject* gtk_object_newv (GtkType type,
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guint nargs,
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GtkArg *args);
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void gtk_object_sink (GtkObject *object);
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void gtk_object_ref (GtkObject *object);
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void gtk_object_unref (GtkObject *object);
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void gtk_object_weakref (GtkObject *object,
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GtkDestroyNotify notify,
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gpointer data);
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void gtk_object_weakunref (GtkObject *object,
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GtkDestroyNotify notify,
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gpointer data);
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void gtk_object_destroy (GtkObject *object);
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/* gtk_object_getv() sets an arguments type and value, or just
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* its type to GTK_TYPE_INVALID.
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* if arg->type == GTK_TYPE_STRING, it's the callers response to
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* do a g_free (GTK_VALUE_STRING (arg));
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*/
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void gtk_object_getv (GtkObject *object,
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guint nargs,
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GtkArg *args);
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/* gtk_object_set() takes a variable argument list of the form:
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* (..., gchar *arg_name, ARG_VALUES, [repeatedly name/value pairs,] NULL)
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* where ARG_VALUES type depend on the argument and can consist of
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* more than one c-function argument.
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*/
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void gtk_object_set (GtkObject *object,
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...);
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void gtk_object_setv (GtkObject *object,
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guint nargs,
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GtkArg *args);
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/* Allocate a GtkArg array of size nargs that hold the
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* names and types of the args that can be used with
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* gtk_object_set/gtk_object_get. if (arg_flags!=NULL),
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* (*arg_flags) will be set to point to a newly allocated
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* guint array that holds the flags of the args.
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* It is the callers response to do a
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* g_free (returned_args); g_free (*arg_flags).
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*/
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GtkArg* gtk_object_query_args (GtkType class_type,
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guint32 **arg_flags,
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guint *nargs);
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void gtk_object_add_arg_type (const gchar *arg_name,
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GtkType arg_type,
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guint arg_flags,
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guint arg_id);
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GtkType gtk_object_get_arg_type (const gchar *arg_name);
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/* Set 'data' to the "object_data" field of the object. The
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* data is indexed by the "key". If there is already data
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* associated with "key" then the new data will replace it.
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* If 'data' is NULL then this call is equivalent to
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* 'gtk_object_remove_data'.
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*/
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void gtk_object_set_data (GtkObject *object,
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const gchar *key,
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gpointer data);
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/* Like gtk_object_set_data, but takes an additional argument
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* which is a function to be called when the data is removed.
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*/
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void gtk_object_set_data_full (GtkObject *object,
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const gchar *key,
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gpointer data,
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GtkDestroyNotify destroy);
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/* Get the data associated with "key".
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*/
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gpointer gtk_object_get_data (GtkObject *object,
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const gchar *key);
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/* Remove the data associated with "key". This call is
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* equivalent to 'gtk_object_set_data' where 'data' is NULL.
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*/
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void gtk_object_remove_data (GtkObject *object,
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const gchar *key);
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/* Object data functions that operate on key ids.
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* These functions are meant for *internal* use only.
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*/
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void gtk_object_set_data_by_id (GtkObject *object,
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GQuark data_id,
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gpointer data);
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void gtk_object_set_data_by_id_full (GtkObject *object,
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GQuark data_id,
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gpointer data,
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GtkDestroyNotify destroy);
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gpointer gtk_object_get_data_by_id (GtkObject *object,
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GQuark data_id);
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void gtk_object_remove_data_by_id (GtkObject *object,
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GQuark data_id);
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#define gtk_object_data_try_key g_quark_try_string
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#define gtk_object_data_force_id g_quark_from_string
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/* Set the "user_data" object data field of "object". It should
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* be noted that this is no different than calling 'gtk_object_set_data'
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* with a key of "user_data". It is merely provided as a convenience.
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*/
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void gtk_object_set_user_data (GtkObject *object,
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gpointer data);
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/* Get the "user_data" object data field of "object". It should
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* be noted that this is no different than calling 'gtk_object_get_data'
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* with a key of "user_data". It is merely provided as a convenience.
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*/
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gpointer gtk_object_get_user_data (GtkObject *object);
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GtkObject* gtk_object_check_cast (GtkObject *obj,
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GtkType cast_type);
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GtkObjectClass* gtk_object_check_class_cast (GtkObjectClass *klass,
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GtkType cast_type);
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void gtk_trace_referencing (GtkObject *object,
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const gchar *func,
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guint dummy,
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guint line,
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gboolean do_ref);
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#if G_ENABLE_DEBUG
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# define gtk_object_ref(o) G_STMT_START{gtk_trace_referencing((o),G_GNUC_PRETTY_FUNCTION,0,__LINE__,1);}G_STMT_END
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# define gtk_object_unref(o) G_STMT_START{gtk_trace_referencing((o),G_GNUC_PRETTY_FUNCTION,0,__LINE__,0);}G_STMT_END
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#endif /* G_ENABLE_DEBUG && __GNUC__ */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GTK_OBJECT_H__ */
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