gstreamer/gst/gobject2gtk.h

#include <gtk/gtk.h>

#define G_MAXUINT UINT_MAX
#define G_MAXULONG ULONG_MAX

#define g_object_ref(obj)			gtk_object_ref((GtkObject *)(obj))
#define g_object_unref(obj)			gtk_object_unref((GtkObject *)(obj))

// the helper macros for type checking
#define G_TYPE_CHECK_INSTANCE_CAST		GTK_CHECK_CAST
#define G_TYPE_CHECK_INSTANCE_TYPE		GTK_CHECK_TYPE
#define G_TYPE_CHECK_CLASS_CAST			GTK_CHECK_CLASS_CAST
#define G_TYPE_CHECK_CLASS_TYPE			GTK_CHECK_CLASS_TYPE
#define G_TYPE_FROM_CLASS(klass)		(((GtkObjectClass *)(klass))->type)
#define G_OBJECT_GET_CLASS(object)		(GTK_OBJECT(object)->klass)
#define G_OBJECT_TYPE				GTK_OBJECT_TYPE
#define G_OBJECT_CLASS_TYPE(gclass)		(gclass->type)

// types
#define G_TYPE_NONE				GTK_TYPE_NONE
#define G_TYPE_CHAR				GTK_TYPE_CHAR
#define G_TYPE_UCHAR				GTK_TYPE_UCHAR
#define G_TYPE_BOOLEAN				GTK_TYPE_BOOL
#define G_TYPE_INT				GTK_TYPE_INT
#define G_TYPE_UINT				GTK_TYPE_UINT
#define G_TYPE_LONG				GTK_TYPE_LONG
#define G_TYPE_ULONG				GTK_TYPE_ULONG
#define G_TYPE_ENUM				GTK_TYPE_ENUM
#define G_TYPE_FLAGS				GTK_TYPE_FLAGS
#define G_TYPE_FLOAT				GTK_TYPE_FLOAT
#define G_TYPE_DOUBLE				GTK_TYPE_DOUBLE
#define G_TYPE_STRING				GTK_TYPE_STRING
#define G_TYPE_POINTER				GTK_TYPE_POINTER
#define G_TYPE_BOXED				GTK_TYPE_BOXED
#define G_TYPE_PARAM				GTK_TYPE_PARAM

// marshallers
#define g_cclosure_marshal_VOID__VOID		gtk_marshal_NONE__NONE
#define g_cclosure_marshal_VOID__BOOLEAN	gtk_marshal_NONE__BOOL
#define g_cclosure_marshal_VOID__CHAR		gtk_marshal_NONE__CHAR
#define g_cclosure_marshal_VOID__UCHAR		gtk_marshal_NONE__UCHAR
#define g_cclosure_marshal_VOID__INT		gtk_marshal_NONE__INT
#define g_cclosure_marshal_VOID__UINT		gtk_marshal_NONE__UINT
#define g_cclosure_marshal_VOID__LONG		gtk_marshal_NONE__LONG
#define g_cclosure_marshal_VOID__ULONG		gtk_marshal_NONE__ULONG
#define g_cclosure_marshal_VOID__ENUM		gtk_marshal_NONE__ENUM
#define g_cclosure_marshal_VOID__FLAGS		gtk_marshal_NONE__FLAGS
#define g_cclosure_marshal_VOID__FLOAT		gtk_marshal_NONE__FLOAT
#define g_cclosure_marshal_VOID__DOUBLE		gtk_marshal_NONE__DOUBLE
#define g_cclosure_marshal_VOID__STRING		gtk_marshal_NONE__STRING
#define g_cclosure_marshal_VOID__PARAM		gtk_marshal_NONE__PARAM
#define g_cclosure_marshal_VOID__BOXED		gtk_marshal_NONE__BOXED
#define g_cclosure_marshal_VOID__POINTER	gtk_marshal_NONE__POINTER
#define g_cclosure_marshal_VOID__OBJECT		gtk_marshal_NONE__OBJECT
#define g_cclosure_marshal_STRING__OBJECT_POINTER	gtk_marshal_STRING__OBJECT_POINTER
#define g_cclosure_marshal_VOID__UINT_POINTER	gtk_marshal_NONE__UINT_POINTER

#define gst_marshal_VOID__OBJECT_POINTER	gtk_marshal_NONE__POINTER_POINTER
#define gst_marshal_VOID__INT_INT		gtk_marshal_NONE__INT_INT


// args
//#define set_property set_arg
//#define get_property get_arg

#define g_object_get_property(obj,argname,pspec)\
G_STMT_START{ \
  (pspec)->name = (gchar*)argname;\
  gtk_object_getv ((obj),1,(pspec));\
}G_STMT_END

#define g_object_set				gtk_object_set


// type system
#define GType					GtkType
#define GTypeFlags				guint
#define GClassInitFunc				GtkClassInitFunc
#define GBaseInitFunc				GtkClassInitFunc
#define GInstanceInitFunc			GtkObjectInitFunc
#define g_type_class_ref			gtk_type_class
#define g_type_class_unref(c)
#define g_type_name(t)				gtk_type_name(t)
#define g_type_from_name(t)			gtk_type_from_name(t)
#define GEnumValue				GtkEnumValue
#define g_enum_register_static			gtk_type_register_enum


GType g2g_object_get_type (void);

/*********************************
 * FIXME API NOT in glib2.0
 ***********************************/


// type registration
typedef struct _GTypeInfo               GTypeInfo;
struct _GTypeInfo
{
  /* interface types, classed types, instantiated types */
  guint16                class_size;

  GBaseInitFunc          base_init;
  gpointer               base_finalize;

  /* classed types, instantiated types */
  GClassInitFunc         class_init;
  gpointer               class_finalize;
  gconstpointer          class_data;
  
  /* instantiated types */
  guint16                instance_size;
  guint16                n_preallocs;
  GInstanceInitFunc      instance_init;

  /* value handling */
  const gpointer         value_table;
};

#define G_TYPE_FLAG_ABSTRACT				0

#define g_type_register_static				g2g_type_register_static
guint g2g_type_register_static (GtkType parent_type, gchar *type_name,
                              const GTypeInfo *info, guint flags);



// object creation
#define g_object_new					g2g_object_new
gpointer g2g_object_new(GtkType type,gpointer blah_varargs_stuff);


// signals
#define G_SIGNAL_RUN_LAST				GTK_RUN_LAST
#define G_SIGNAL_RUN_FIRST				GTK_RUN_FIRST

#define GCallback					gpointer	// FIXME?
#define G_CALLBACK(f)					((gpointer)(f))

#define g_signal_newc					g2g_signal_newc
guint
g2g_signal_newc (const gchar       *signal_name,
               GtkType            object_type,
               GtkSignalRunType   signal_flags,
               guint              function_offset,
               gpointer           accumulator,  // GSignalAccumulator   
               gpointer           accu_data,
               GtkSignalMarshaller  marshaller,
               GType              return_type,
               guint              nparams,
               ...);

#define \
g_signal_emit(object,signal,detail,args...) \
gtk_signal_emit((GtkObject *)object,signal, ## args )

#define \
g_signal_connectc(object,name,func,func_data,swap) \
gtk_signal_connect((GtkObject *)object,name,func,func_data)

#define \
g_signal_emit_by_name(object,name,data,self) \
gtk_signal_emit_by_name ((GtkObject *)object,name,data,self)

#define \
g_signal_has_handler_pending(object,name,data,may_block) \
gtk_signal_handler_pending ((GtkObject *)object,name,may_block)

#define g_signal_lookup			gtk_signal_lookup
#define g_signal_handler_block		gtk_signal_handler_block
#define g_signal_handler_unblock	gtk_signal_handler_unblock




// arguments/parameters

// first define GValue and GParamSpec
#define GValue			GtkArg
#define GParamFlags		gint
#define G_VALUE_TYPE(v)		((v)->type)
#define G_PARAM_READWRITE	GTK_ARG_READWRITE
#define G_PARAM_READABLE	GTK_ARG_READABLE
#define G_PARAM_WRITABLE	GTK_ARG_WRITABLE
#define G_OBJECT_WARN_INVALID_PROPERTY_ID(a,b,c)
typedef struct _GParamSpec GParamSpec;
struct _GParamSpec {
  gchar *name;
  gint value_type;
  gint flags;
};

#define g_value_init(value,t)			((value)->type = (t))

#define g_object_class_install_property		g2g_object_class_install_property
void g2g_object_class_install_property(GtkObjectClass *oclass,guint property_id,GParamSpec *pspec);
#define g_object_class_find_property		g2g_object_class_find_property
GParamSpec *g2g_object_class_find_property(GtkObjectClass *oclass,gchar *name);
#define g_object_class_list_properties		g2g_object_class_list_properties
GParamSpec **g2g_object_class_list_properties(GtkObjectClass *oclass,guint *n_properties);

#define G_IS_PARAM_SPEC_ENUM(pspec)		(GTK_FUNDAMENTAL_TYPE(pspec->value_type) == GTK_TYPE_ENUM)

#define g_param_spec_boolean			g2g_param_spec_boolean
GParamSpec *g2g_param_spec_boolean(gchar *name,gchar *nick,gchar *blurb,gboolean def,gint flags);
#define g_param_spec_int			g2g_param_spec_int
GParamSpec *g2g_param_spec_int(gchar *name,gchar *nick,gchar *blurb,gint min,gint max,gint def,gint flags);
#define g_param_spec_uint			g2g_param_spec_uint
GParamSpec *g2g_param_spec_uint(gchar *name,gchar *nick,gchar *blurb,guint min,guint max,guint def,gint flags);
#define g_param_spec_long			g2g_param_spec_long
GParamSpec *g2g_param_spec_long(gchar *name,gchar *nick,gchar *blurb,glong min,glong max,glong def,gint flags);
#define g_param_spec_ulong			g2g_param_spec_ulong
GParamSpec *g2g_param_spec_ulong(gchar *name,gchar *nick,gchar *blurb,gulong min,gulong max,gulong def,gint flags);
#define g_param_spec_float			g2g_param_spec_float
GParamSpec *g2g_param_spec_float(gchar *name,gchar *nick,gchar *blurb,float min,float max,float def,gint flags);
#define g_param_spec_double			g2g_param_spec_double
GParamSpec *g2g_param_spec_double(gchar *name,gchar *nick,gchar *blurb,double min,double max,double def,gint flags);
#define g_param_spec_enum			g2g_param_spec_enum
GParamSpec *g2g_param_spec_enum(gchar *name,gchar *nick,gchar *blurb,GtkType e,guint def,gint flags);
#define g_param_spec_pointer			g2g_param_spec_pointer
GParamSpec *g2g_param_spec_pointer(gchar *name,gchar *nick,gchar *blurb,gint flags);
#define g_param_spec_string			g2g_param_spec_string
GParamSpec *g2g_param_spec_string(gchar *name,gchar *nick,gchar *blurb,gchar *def,gint flags);

#define g_value_get_boolean(value)		GTK_VALUE_BOOL(*value)
#define g_value_set_boolean(value,data)		(GTK_VALUE_BOOL(*value) = (data))
#define g_value_get_enum(value)			GTK_VALUE_INT(*value)
#define g_value_set_enum(value,data)		(GTK_VALUE_INT(*value) = (data))
#define g_value_get_int(value)			GTK_VALUE_INT(*value)
#define g_value_set_int(value,data)		(GTK_VALUE_INT(*value) = (data))
#define g_value_get_uint(value)			GTK_VALUE_UINT(*value)
#define g_value_set_uint(value,data)		(GTK_VALUE_UINT(*value) = (data))
#define g_value_get_long(value)			GTK_VALUE_LONG(*value)
#define g_value_set_long(value,data)		(GTK_VALUE_LONG(*value) = (data))
#define g_value_get_ulong(value)		GTK_VALUE_ULONG(*value)
#define g_value_set_ulong(value,data)		(GTK_VALUE_ULONG(*value) = (data))
#define g_value_get_float(value)		GTK_VALUE_FLOAT(*value)
#define g_value_set_float(value,data)		(GTK_VALUE_FLOAT(*value) = (data))
#define g_value_get_double(value)		GTK_VALUE_DOUBLE(*value)
#define g_value_set_double(value,data)		(GTK_VALUE_DOUBLE(*value) = (data))
#define g_value_get_string(value)		GTK_VALUE_STRING(*value)
#define g_value_set_string(value,data)		(GTK_VALUE_STRING(*value) = (data))
#define g_value_get_pointer(value)		GTK_VALUE_POINTER(*value)
#define g_value_set_pointer(value,data)		(GTK_VALUE_POINTER(*value) = (data))





// the object itself
//#define GObject				GtkObject
//#define GObjectClass				GtkObjectClass
#define G_OBJECT				GTK_OBJECT
#define G_OBJECT_CLASS				GTK_OBJECT_CLASS

#define G_TYPE_OBJECT \
  (g2g_object_get_type())
//#define G_OBJECT(obj) 
//  (GTK_CHECK_CAST((obj),G_TYPE_OBJECT,GObject))
//#define G_OBJECT_CLASS(klass) 
//  (GTK_CHECK_CLASS_CAST((klass),G_TYPE_OBJECT,GObjectClass)) 
#define G_IS_OBJECT(obj) \
  (GTK_CHECK_TYPE((obj),G_TYPE_OBJECT))
#define G_IS_OBJECT_CLASS(obj) \
  (GTK_CHECK_CLASS_TYPE((klass),G_TYPE_OBJECT))

typedef struct _GObject GObject;
typedef struct _GObjectClass GObjectClass;

struct _GObject {
/***** THE FOLLOWING IS A VERBATIM COPY FROM GTKOBJECT *****/
  /* GtkTypeObject related fields: */
  GtkObjectClass *klass;
 
   
  /* 32 bits of flags. GtkObject only uses 4 of these bits and
   *  GtkWidget uses the rest. This is done because structs are
   *  aligned on 4 or 8 byte boundaries. If a new bitfield were
   *  used in GtkWidget much space would be wasted.
   */
  guint32 flags;
  
  /* reference count.
   * refer to the file docs/refcounting.txt on this issue.
   */
  guint ref_count;
  
  /* A list of keyed data pointers, used for e.g. the list of signal
   * handlers or an object's user_data.
   */
  GData *object_data;
/***** END OF COPY FROM GTKOBJECT *****/
};

struct _GObjectClass {
/***** THE FOLLOWING IS A VERBATIM COPY FROM GTKOBJECT *****/
  /* GtkTypeClass fields: */               
  GtkType type;

   
  /* The signals this object class handles. "signals" is an
   *  array of signal ID's.
   */
  guint *signals;
     
  /* The number of signals listed in "signals".
   */
  guint nsignals;
  
  /* The number of arguments per class.
   */
  guint n_args;
  GSList *construct_args;

  /* Non overridable class methods to set and get per class arguments */
  void (*set_arg) (GtkObject *object,
                   GtkArg    *arg,
                   guint      arg_id);
  void (*get_arg) (GtkObject *object,
                   GtkArg    *arg,
                   guint      arg_id);
  
  /* The functions that will end an objects life time. In one way ore
   *  another all three of them are defined for all objects. If an
   *  object class overrides one of the methods in order to perform class
   *  specific destruction then it must still invoke its superclass'
   *  implementation of the method after it is finished with its
   *  own cleanup. (See the destroy function for GtkWidget for
   *  an example of how to do this).   
   */
  void (* shutdown) (GObject *object);
  void (* destroy)  (GObject *object);
 
  void (* finalize) (GObject *object);
/***** END OF COPY FROM GTKOBJECT *****/

  void (*set_property) (GObject *object, guint prop_id,
                        const GValue *value, GParamSpec *pspec);
  void (*get_property) (GObject *object, guint prop_id,
                        GValue *value, GParamSpec *pspec);
};

GType g_object_get_type (void);