mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-26 21:51:08 +00:00
50512ddcd2
Fri May 18 14:25:20 2001 Owen Taylor <otaylor@redhat.com> * gtk/gtkcontainer.c: Remove reallocate-redraws property. This is something that only a widget writer would ever want to change. * gtk/gtksignal.c: Handle G_SIGNAL_TYPE_STATIC_SCOPE for gtk_signal_emit_by_name(). * gtk/gtkviewport.c: Fix some warnings. * gtk/gtkwidget.c gtk/gtksizegroup.c: Add "size group" facility allowing the requisitions of multiple widgets to be grouped together. * tests/testgtk.c: Add GtkSizeGroup test * demos/gtk-demo/sizegroup.c: Add GtkSizeGroup demo. * demos/gtk-demo/main.c demos/gtk-demo/pixbufs.c: Fix some warnings. * configure.in: Switch to using AM_GLIB_GNU_GETTEXT.
487 lines
16 KiB
C
487 lines
16 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include "gtksignal.h"
|
|
#include "gtkargcollector.c"
|
|
#include "gtkmarshal.c"
|
|
|
|
|
|
/* the real parameter limit is of course given by GSignal, bu we need
|
|
* an upper limit for the implementations. so this should be adjusted
|
|
* with any future changes on the GSignal side of things.
|
|
*/
|
|
#define SIGNAL_MAX_PARAMS 12
|
|
|
|
|
|
/* --- functions --- */
|
|
guint
|
|
gtk_signal_newv (const gchar *name,
|
|
GtkSignalRunType signal_flags,
|
|
GtkType object_type,
|
|
guint function_offset,
|
|
GtkSignalMarshaller marshaller,
|
|
GtkType return_val,
|
|
guint n_params,
|
|
GtkType *params)
|
|
{
|
|
GClosure *closure;
|
|
|
|
g_return_val_if_fail (n_params < SIGNAL_MAX_PARAMS, 0);
|
|
|
|
closure = g_signal_type_cclosure_new (object_type, function_offset);
|
|
|
|
return g_signal_newv (name, object_type, signal_flags, closure, NULL, NULL, marshaller, return_val, n_params, params);
|
|
}
|
|
|
|
guint
|
|
gtk_signal_new (const gchar *name,
|
|
GtkSignalRunType signal_flags,
|
|
GtkType object_type,
|
|
guint function_offset,
|
|
GtkSignalMarshaller marshaller,
|
|
GtkType return_val,
|
|
guint n_params,
|
|
...)
|
|
{
|
|
GtkType *params;
|
|
guint signal_id;
|
|
|
|
if (n_params)
|
|
{
|
|
va_list args;
|
|
guint i;
|
|
|
|
params = g_new (GtkType, n_params);
|
|
va_start (args, n_params);
|
|
for (i = 0; i < n_params; i++)
|
|
params[i] = va_arg (args, GtkType);
|
|
va_end (args);
|
|
}
|
|
else
|
|
params = NULL;
|
|
signal_id = gtk_signal_newv (name,
|
|
signal_flags,
|
|
object_type,
|
|
function_offset,
|
|
marshaller,
|
|
return_val,
|
|
n_params,
|
|
params);
|
|
g_free (params);
|
|
|
|
return signal_id;
|
|
}
|
|
|
|
void
|
|
gtk_signal_emit_stop_by_name (GtkObject *object,
|
|
const gchar *name)
|
|
{
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
g_signal_stop_emission (object, g_signal_lookup (name, G_OBJECT_TYPE (object)), 0);
|
|
}
|
|
|
|
void
|
|
gtk_signal_connect_object_while_alive (GtkObject *object,
|
|
const gchar *signal,
|
|
GtkSignalFunc func,
|
|
GtkObject *alive_object)
|
|
{
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
g_signal_connect_closure_by_id (object,
|
|
g_signal_lookup (signal, G_OBJECT_TYPE (object)), 0,
|
|
g_cclosure_new_object_swap (func, alive_object),
|
|
FALSE);
|
|
}
|
|
|
|
void
|
|
gtk_signal_connect_while_alive (GtkObject *object,
|
|
const gchar *signal,
|
|
GtkSignalFunc func,
|
|
gpointer func_data,
|
|
GtkObject *alive_object)
|
|
{
|
|
GClosure *closure;
|
|
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
closure = g_cclosure_new (func, func_data, NULL);
|
|
g_object_watch_closure (G_OBJECT (alive_object), closure);
|
|
g_signal_connect_closure_by_id (object,
|
|
g_signal_lookup (signal, G_OBJECT_TYPE (object)), 0,
|
|
closure,
|
|
FALSE);
|
|
}
|
|
|
|
guint
|
|
gtk_signal_connect_full (GtkObject *object,
|
|
const gchar *name,
|
|
GtkSignalFunc func,
|
|
GtkCallbackMarshal unsupported,
|
|
gpointer data,
|
|
GtkDestroyNotify destroy_func,
|
|
gint object_signal,
|
|
gint after)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_OBJECT (object), 0);
|
|
g_return_val_if_fail (unsupported == NULL, 0);
|
|
|
|
return g_signal_connect_closure_by_id (object,
|
|
g_signal_lookup (name, G_OBJECT_TYPE (object)), 0,
|
|
(object_signal
|
|
? g_cclosure_new_swap
|
|
: g_cclosure_new) (func,
|
|
data,
|
|
(GClosureNotify) destroy_func),
|
|
after);
|
|
}
|
|
|
|
void
|
|
gtk_signal_compat_matched (GtkObject *object,
|
|
GtkSignalFunc func,
|
|
gpointer data,
|
|
GSignalMatchType match,
|
|
guint action)
|
|
{
|
|
guint n_handlers;
|
|
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
switch (action)
|
|
{
|
|
case 0: n_handlers = g_signal_handlers_disconnect_matched (object, match, 0, 0, NULL, func, data); break;
|
|
case 1: n_handlers = g_signal_handlers_block_matched (object, match, 0, 0, NULL, func, data); break;
|
|
case 2: n_handlers = g_signal_handlers_unblock_matched (object, match, 0, 0, NULL, func, data); break;
|
|
default: n_handlers = 0; break;
|
|
}
|
|
|
|
if (!n_handlers)
|
|
g_warning ("unable to find signal handler for object(%s:%p) with func(%p) and data(%p)",
|
|
G_OBJECT_TYPE_NAME (object), object, func, data);
|
|
}
|
|
|
|
static inline gboolean
|
|
gtk_arg_to_value (GtkArg *arg,
|
|
GValue *value)
|
|
{
|
|
switch (G_TYPE_FUNDAMENTAL (arg->type))
|
|
{
|
|
case G_TYPE_CHAR: g_value_set_char (value, GTK_VALUE_CHAR (*arg)); break;
|
|
case G_TYPE_UCHAR: g_value_set_uchar (value, GTK_VALUE_UCHAR (*arg)); break;
|
|
case G_TYPE_BOOLEAN: g_value_set_boolean (value, GTK_VALUE_BOOL (*arg)); break;
|
|
case G_TYPE_INT: g_value_set_int (value, GTK_VALUE_INT (*arg)); break;
|
|
case G_TYPE_UINT: g_value_set_uint (value, GTK_VALUE_UINT (*arg)); break;
|
|
case G_TYPE_LONG: g_value_set_long (value, GTK_VALUE_LONG (*arg)); break;
|
|
case G_TYPE_ULONG: g_value_set_ulong (value, GTK_VALUE_ULONG (*arg)); break;
|
|
case G_TYPE_ENUM: g_value_set_enum (value, GTK_VALUE_ENUM (*arg)); break;
|
|
case G_TYPE_FLAGS: g_value_set_flags (value, GTK_VALUE_FLAGS (*arg)); break;
|
|
case G_TYPE_FLOAT: g_value_set_float (value, GTK_VALUE_FLOAT (*arg)); break;
|
|
case G_TYPE_DOUBLE: g_value_set_double (value, GTK_VALUE_DOUBLE (*arg)); break;
|
|
case G_TYPE_STRING: g_value_set_string (value, GTK_VALUE_STRING (*arg)); break;
|
|
case G_TYPE_BOXED: g_value_set_boxed (value, GTK_VALUE_BOXED (*arg)); break;
|
|
case G_TYPE_POINTER: g_value_set_pointer (value, GTK_VALUE_POINTER (*arg)); break;
|
|
case G_TYPE_OBJECT: g_value_set_object (value, GTK_VALUE_POINTER (*arg)); break;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static inline gboolean
|
|
gtk_arg_static_to_value (GtkArg *arg,
|
|
GValue *value)
|
|
{
|
|
switch (G_TYPE_FUNDAMENTAL (arg->type))
|
|
{
|
|
case G_TYPE_CHAR: g_value_set_char (value, GTK_VALUE_CHAR (*arg)); break;
|
|
case G_TYPE_UCHAR: g_value_set_uchar (value, GTK_VALUE_UCHAR (*arg)); break;
|
|
case G_TYPE_BOOLEAN: g_value_set_boolean (value, GTK_VALUE_BOOL (*arg)); break;
|
|
case G_TYPE_INT: g_value_set_int (value, GTK_VALUE_INT (*arg)); break;
|
|
case G_TYPE_UINT: g_value_set_uint (value, GTK_VALUE_UINT (*arg)); break;
|
|
case G_TYPE_LONG: g_value_set_long (value, GTK_VALUE_LONG (*arg)); break;
|
|
case G_TYPE_ULONG: g_value_set_ulong (value, GTK_VALUE_ULONG (*arg)); break;
|
|
case G_TYPE_ENUM: g_value_set_enum (value, GTK_VALUE_ENUM (*arg)); break;
|
|
case G_TYPE_FLAGS: g_value_set_flags (value, GTK_VALUE_FLAGS (*arg)); break;
|
|
case G_TYPE_FLOAT: g_value_set_float (value, GTK_VALUE_FLOAT (*arg)); break;
|
|
case G_TYPE_DOUBLE: g_value_set_double (value, GTK_VALUE_DOUBLE (*arg)); break;
|
|
case G_TYPE_STRING: g_value_set_static_string (value, GTK_VALUE_STRING (*arg)); break;
|
|
case G_TYPE_BOXED: g_value_set_static_boxed (value, GTK_VALUE_BOXED (*arg)); break;
|
|
case G_TYPE_POINTER: g_value_set_pointer (value, GTK_VALUE_POINTER (*arg)); break;
|
|
case G_TYPE_OBJECT: g_value_set_object (value, GTK_VALUE_POINTER (*arg)); break;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static inline gboolean
|
|
gtk_arg_set_from_value (GtkArg *arg,
|
|
GValue *value,
|
|
gboolean copy_string)
|
|
{
|
|
switch (G_TYPE_FUNDAMENTAL (arg->type))
|
|
{
|
|
case G_TYPE_CHAR: GTK_VALUE_CHAR (*arg) = g_value_get_char (value); break;
|
|
case G_TYPE_UCHAR: GTK_VALUE_UCHAR (*arg) = g_value_get_uchar (value); break;
|
|
case G_TYPE_BOOLEAN: GTK_VALUE_BOOL (*arg) = g_value_get_boolean (value); break;
|
|
case G_TYPE_INT: GTK_VALUE_INT (*arg) = g_value_get_int (value); break;
|
|
case G_TYPE_UINT: GTK_VALUE_UINT (*arg) = g_value_get_uint (value); break;
|
|
case G_TYPE_LONG: GTK_VALUE_LONG (*arg) = g_value_get_long (value); break;
|
|
case G_TYPE_ULONG: GTK_VALUE_ULONG (*arg) = g_value_get_ulong (value); break;
|
|
case G_TYPE_ENUM: GTK_VALUE_ENUM (*arg) = g_value_get_enum (value); break;
|
|
case G_TYPE_FLAGS: GTK_VALUE_FLAGS (*arg) = g_value_get_flags (value); break;
|
|
case G_TYPE_FLOAT: GTK_VALUE_FLOAT (*arg) = g_value_get_float (value); break;
|
|
case G_TYPE_DOUBLE: GTK_VALUE_DOUBLE (*arg) = g_value_get_double (value); break;
|
|
case G_TYPE_BOXED: GTK_VALUE_BOXED (*arg) = g_value_get_boxed (value); break;
|
|
case G_TYPE_POINTER: GTK_VALUE_POINTER (*arg) = g_value_get_pointer (value); break;
|
|
case G_TYPE_OBJECT: GTK_VALUE_POINTER (*arg) = g_value_get_object (value); break;
|
|
case G_TYPE_STRING: if (copy_string)
|
|
GTK_VALUE_STRING (*arg) = g_value_dup_string (value);
|
|
else
|
|
GTK_VALUE_STRING (*arg) = g_value_get_string (value);
|
|
break;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static inline gboolean
|
|
gtk_argloc_set_from_value (GtkArg *arg,
|
|
GValue *value,
|
|
gboolean copy_string)
|
|
{
|
|
switch (G_TYPE_FUNDAMENTAL (arg->type))
|
|
{
|
|
case G_TYPE_CHAR: *GTK_RETLOC_CHAR (*arg) = g_value_get_char (value); break;
|
|
case G_TYPE_UCHAR: *GTK_RETLOC_UCHAR (*arg) = g_value_get_uchar (value); break;
|
|
case G_TYPE_BOOLEAN: *GTK_RETLOC_BOOL (*arg) = g_value_get_boolean (value); break;
|
|
case G_TYPE_INT: *GTK_RETLOC_INT (*arg) = g_value_get_int (value); break;
|
|
case G_TYPE_UINT: *GTK_RETLOC_UINT (*arg) = g_value_get_uint (value); break;
|
|
case G_TYPE_LONG: *GTK_RETLOC_LONG (*arg) = g_value_get_long (value); break;
|
|
case G_TYPE_ULONG: *GTK_RETLOC_ULONG (*arg) = g_value_get_ulong (value); break;
|
|
case G_TYPE_ENUM: *GTK_RETLOC_ENUM (*arg) = g_value_get_enum (value); break;
|
|
case G_TYPE_FLAGS: *GTK_RETLOC_FLAGS (*arg) = g_value_get_flags (value); break;
|
|
case G_TYPE_FLOAT: *GTK_RETLOC_FLOAT (*arg) = g_value_get_float (value); break;
|
|
case G_TYPE_DOUBLE: *GTK_RETLOC_DOUBLE (*arg) = g_value_get_double (value); break;
|
|
case G_TYPE_BOXED: *GTK_RETLOC_BOXED (*arg) = g_value_get_boxed (value); break;
|
|
case G_TYPE_POINTER: *GTK_RETLOC_POINTER (*arg) = g_value_get_pointer (value); break;
|
|
case G_TYPE_OBJECT: *GTK_RETLOC_POINTER (*arg) = g_value_get_object (value); break;
|
|
case G_TYPE_STRING: if (copy_string)
|
|
*GTK_RETLOC_STRING (*arg) = g_value_dup_string (value);
|
|
else
|
|
*GTK_RETLOC_STRING (*arg) = g_value_get_string (value);
|
|
break;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
gtk_signal_emitv (GtkObject *object,
|
|
guint signal_id,
|
|
GtkArg *args)
|
|
{
|
|
GSignalQuery query;
|
|
GValue params[SIGNAL_MAX_PARAMS + 1] = { { 0, }, };
|
|
GValue rvalue = { 0, };
|
|
guint i;
|
|
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
g_signal_query (signal_id, &query);
|
|
g_return_if_fail (query.signal_id != 0);
|
|
g_return_if_fail (g_type_is_a (GTK_OBJECT_TYPE (object), query.itype));
|
|
g_return_if_fail (query.n_params < SIGNAL_MAX_PARAMS);
|
|
if (query.n_params > 0)
|
|
g_return_if_fail (args != NULL);
|
|
|
|
g_value_init (params + 0, GTK_OBJECT_TYPE (object));
|
|
g_value_set_object (params + 0, G_OBJECT (object));
|
|
for (i = 0; i < query.n_params; i++)
|
|
{
|
|
GValue *value = params + 1 + i;
|
|
GtkArg *arg = args + i;
|
|
|
|
g_value_init (value, arg->type & ~G_SIGNAL_TYPE_STATIC_SCOPE);
|
|
if (!gtk_arg_static_to_value (arg, value))
|
|
{
|
|
g_warning ("%s: failed to convert arg type `%s' to value type `%s'",
|
|
G_STRLOC, g_type_name (arg->type & ~G_SIGNAL_TYPE_STATIC_SCOPE),
|
|
g_type_name (G_VALUE_TYPE (value)));
|
|
return;
|
|
}
|
|
}
|
|
if (query.return_type != G_TYPE_NONE)
|
|
g_value_init (&rvalue, query.return_type);
|
|
|
|
g_signal_emitv (params, signal_id, 0, &rvalue);
|
|
|
|
if (query.return_type != G_TYPE_NONE)
|
|
{
|
|
gtk_argloc_set_from_value (args + query.n_params, &rvalue, TRUE);
|
|
g_value_unset (&rvalue);
|
|
}
|
|
for (i = 0; i < query.n_params; i++)
|
|
g_value_unset (params + 1 + i);
|
|
g_value_unset (params + 0);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_signal_collect_args (GtkArg *args,
|
|
guint n_args,
|
|
const GtkType *arg_types,
|
|
GtkType return_type,
|
|
va_list var_args)
|
|
{
|
|
register GtkArg *last_arg;
|
|
register gboolean failed = FALSE;
|
|
|
|
for (last_arg = args + n_args; args < last_arg; args++)
|
|
{
|
|
register gchar *error;
|
|
|
|
args->name = NULL;
|
|
args->type = *(arg_types++);
|
|
GTK_ARG_COLLECT_VALUE (args,
|
|
var_args,
|
|
error);
|
|
if (error)
|
|
{
|
|
failed = TRUE;
|
|
g_warning ("gtk_signal_collect_args(): %s", error);
|
|
g_free (error);
|
|
}
|
|
}
|
|
|
|
args->type = return_type;
|
|
args->name = NULL;
|
|
|
|
return_type = GTK_FUNDAMENTAL_TYPE (return_type);
|
|
if (return_type != G_TYPE_NONE)
|
|
{
|
|
if (return_type != 0) /* FIXME: check for IS_ARG */
|
|
{
|
|
GTK_VALUE_POINTER (*args) = va_arg (var_args, gpointer);
|
|
|
|
if (GTK_VALUE_POINTER (*args) == NULL)
|
|
{
|
|
failed = TRUE;
|
|
g_warning ("gtk_signal_collect_args(): invalid NULL pointer for return argument type `%s'",
|
|
gtk_type_name (args->type));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
failed = TRUE;
|
|
g_warning ("gtk_signal_collect_args(): unsupported return argument type `%s'",
|
|
gtk_type_name (args->type));
|
|
}
|
|
}
|
|
else
|
|
GTK_VALUE_POINTER (*args) = NULL;
|
|
|
|
return failed;
|
|
}
|
|
|
|
#if 0
|
|
void
|
|
gtk_signal_emit (GtkObject *object,
|
|
guint signal_id,
|
|
...)
|
|
{
|
|
GtkArg args[SIGNAL_MAX_PARAMS + 1];
|
|
GSignalQuery query;
|
|
gboolean abort;
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
g_signal_query (signal_id, &query);
|
|
g_return_if_fail (query.signal_id != 0);
|
|
g_return_if_fail (query.n_params < SIGNAL_MAX_PARAMS);
|
|
|
|
va_start (var_args, signal_id);
|
|
abort = gtk_signal_collect_args (args,
|
|
query.n_params,
|
|
query.param_types,
|
|
query.return_type,
|
|
var_args);
|
|
va_end (var_args);
|
|
|
|
if (!abort)
|
|
gtk_signal_emitv (object, signal_id, args);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
gtk_signal_emit (GtkObject *object,
|
|
guint signal_id,
|
|
...)
|
|
{
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
va_start (var_args, signal_id);
|
|
g_signal_emit_valist (G_OBJECT (object), signal_id, 0, var_args);
|
|
va_end (var_args);
|
|
}
|
|
|
|
void
|
|
gtk_signal_emit_by_name (GtkObject *object,
|
|
const gchar *name,
|
|
...)
|
|
{
|
|
GtkArg args[SIGNAL_MAX_PARAMS + 1];
|
|
GSignalQuery query;
|
|
gboolean abort;
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
g_return_if_fail (name != NULL);
|
|
|
|
g_signal_query (g_signal_lookup (name, GTK_OBJECT_TYPE (object)), &query);
|
|
g_return_if_fail (query.signal_id != 0);
|
|
g_return_if_fail (query.n_params < SIGNAL_MAX_PARAMS);
|
|
|
|
va_start (var_args, name);
|
|
abort = gtk_signal_collect_args (args,
|
|
query.n_params,
|
|
query.param_types,
|
|
query.return_type,
|
|
var_args);
|
|
va_end (var_args);
|
|
|
|
if (!abort)
|
|
gtk_signal_emitv (object, query.signal_id, args);
|
|
}
|
|
|
|
void
|
|
gtk_signal_emitv_by_name (GtkObject *object,
|
|
const gchar *name,
|
|
GtkArg *args)
|
|
{
|
|
g_return_if_fail (GTK_IS_OBJECT (object));
|
|
|
|
gtk_signal_emitv (object, g_signal_lookup (name, GTK_OBJECT_TYPE (object)), args);
|
|
}
|