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gtk2/tests/prop-editor.c
Michael Natterer a75c6faf03 zero-initialize the GValue before calling g_value_init(). 
2006-03-08  Michael Natterer  <mitch@imendio.com>

	* tests/prop-editor.c (unichar_changed): zero-initialize the
	GValue before calling g_value_init().
2006-03-08 15:37:07 +00:00

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/* prop-editor.c
* Copyright (C) 2000 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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 <config.h>
#include <string.h>
#undef GTK_DISABLE_DEPRECATED
#include <gtk/gtk.h>
#include "prop-editor.h"
typedef struct
{
gpointer instance;
GObject *alive_object;
guint id;
} DisconnectData;
static void
disconnect_func (gpointer data)
{
DisconnectData *dd = data;
g_signal_handler_disconnect (dd->instance, dd->id);
}
static void
signal_removed (gpointer data,
GClosure *closure)
{
DisconnectData *dd = data;
g_object_steal_data (dd->alive_object, "alive-object-data");
g_free (dd);
}
static gboolean
is_child_property (GParamSpec *pspec)
{
return g_param_spec_get_qdata (pspec, g_quark_from_string ("is-child-prop")) != NULL;
}
static void
mark_child_property (GParamSpec *pspec)
{
g_param_spec_set_qdata (pspec, g_quark_from_string ("is-child-prop"),
GINT_TO_POINTER (TRUE));
}
static void
g_object_connect_property (GObject *object,
GParamSpec *spec,
GCallback func,
gpointer data,
GObject *alive_object)
{
GClosure *closure;
gchar *with_detail;
DisconnectData *dd;
if (is_child_property (spec))
with_detail = g_strconcat ("child-notify::", spec->name, NULL);
else
with_detail = g_strconcat ("notify::", spec->name, NULL);
dd = g_new (DisconnectData, 1);
closure = g_cclosure_new (func, data, NULL);
g_closure_add_invalidate_notifier (closure, dd, signal_removed);
dd->id = g_signal_connect_closure (object, with_detail,
closure, FALSE);
dd->instance = object;
dd->alive_object = alive_object;
g_object_set_data_full (G_OBJECT (alive_object),
"alive-object-data",
dd,
disconnect_func);
g_free (with_detail);
}
typedef struct
{
GObject *obj;
GParamSpec *spec;
gint modified_id;
} ObjectProperty;
static void
free_object_property (ObjectProperty *p)
{
g_free (p);
}
static void
connect_controller (GObject *controller,
const gchar *signal,
GObject *model,
GParamSpec *spec,
GtkSignalFunc func)
{
ObjectProperty *p;
p = g_new (ObjectProperty, 1);
p->obj = model;
p->spec = spec;
p->modified_id = g_signal_connect_data (controller, signal, func, p,
(GClosureNotify)free_object_property,
0);
g_object_set_data (controller, "object-property", p);
}
static void
block_controller (GObject *controller)
{
ObjectProperty *p = g_object_get_data (controller, "object-property");
if (p)
g_signal_handler_block (controller, p->modified_id);
}
static void
unblock_controller (GObject *controller)
{
ObjectProperty *p = g_object_get_data (controller, "object-property");
if (p)
g_signal_handler_unblock (controller, p->modified_id);
}
static void
int_modified (GtkAdjustment *adj, gpointer data)
{
ObjectProperty *p = data;
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_set (GTK_CONTAINER (parent),
widget, p->spec->name, (int) adj->value, NULL);
}
else
g_object_set (p->obj, p->spec->name, (int) adj->value, NULL);
}
static void
get_property_value (GObject *object, GParamSpec *pspec, GValue *value)
{
if (is_child_property (pspec))
{
GtkWidget *widget = GTK_WIDGET (object);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_get_property (GTK_CONTAINER (parent),
widget, pspec->name, value);
}
else
g_object_get_property (object, pspec->name, value);
}
static void
int_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkAdjustment *adj = GTK_ADJUSTMENT (data);
GValue val = { 0, };
g_value_init (&val, G_TYPE_INT);
get_property_value (object, pspec, &val);
if (g_value_get_int (&val) != (int)adj->value)
{
block_controller (G_OBJECT (adj));
gtk_adjustment_set_value (adj, g_value_get_int (&val));
unblock_controller (G_OBJECT (adj));
}
g_value_unset (&val);
}
static void
uint_modified (GtkAdjustment *adj, gpointer data)
{
ObjectProperty *p = data;
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_set (GTK_CONTAINER (parent),
widget, p->spec->name, (guint) adj->value, NULL);
}
else
g_object_set (p->obj, p->spec->name, (guint) adj->value, NULL);
}
static void
uint_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkAdjustment *adj = GTK_ADJUSTMENT (data);
GValue val = { 0, };
g_value_init (&val, G_TYPE_UINT);
get_property_value (object, pspec, &val);
if (g_value_get_uint (&val) != (guint)adj->value)
{
block_controller (G_OBJECT (adj));
gtk_adjustment_set_value (adj, g_value_get_uint (&val));
unblock_controller (G_OBJECT (adj));
}
g_value_unset (&val);
}
static void
float_modified (GtkAdjustment *adj, gpointer data)
{
ObjectProperty *p = data;
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_set (GTK_CONTAINER (parent),
widget, p->spec->name, (float) adj->value, NULL);
}
else
g_object_set (p->obj, p->spec->name, (float) adj->value, NULL);
}
static void
float_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkAdjustment *adj = GTK_ADJUSTMENT (data);
GValue val = { 0, };
g_value_init (&val, G_TYPE_FLOAT);
get_property_value (object, pspec, &val);
if (g_value_get_float (&val) != (float) adj->value)
{
block_controller (G_OBJECT (adj));
gtk_adjustment_set_value (adj, g_value_get_float (&val));
unblock_controller (G_OBJECT (adj));
}
g_value_unset (&val);
}
static void
double_modified (GtkAdjustment *adj, gpointer data)
{
ObjectProperty *p = data;
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_set (GTK_CONTAINER (parent),
widget, p->spec->name, (double) adj->value, NULL);
}
else
g_object_set (p->obj, p->spec->name, (double) adj->value, NULL);
}
static void
double_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkAdjustment *adj = GTK_ADJUSTMENT (data);
GValue val = { 0, };
g_value_init (&val, G_TYPE_DOUBLE);
get_property_value (object, pspec, &val);
if (g_value_get_double (&val) != adj->value)
{
block_controller (G_OBJECT (adj));
gtk_adjustment_set_value (adj, g_value_get_double (&val));
unblock_controller (G_OBJECT (adj));
}
g_value_unset (&val);
}
static void
string_modified (GtkEntry *entry, gpointer data)
{
ObjectProperty *p = data;
const gchar *text;
text = gtk_entry_get_text (entry);
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_set (GTK_CONTAINER (parent),
widget, p->spec->name, text, NULL);
}
else
g_object_set (p->obj, p->spec->name, text, NULL);
}
static void
string_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkEntry *entry = GTK_ENTRY (data);
GValue val = { 0, };
const gchar *str;
const gchar *text;
g_value_init (&val, G_TYPE_STRING);
get_property_value (object, pspec, &val);
str = g_value_get_string (&val);
if (str == NULL)
str = "";
text = gtk_entry_get_text (entry);
if (strcmp (str, text) != 0)
{
block_controller (G_OBJECT (entry));
gtk_entry_set_text (entry, str);
unblock_controller (G_OBJECT (entry));
}
g_value_unset (&val);
}
static void
bool_modified (GtkToggleButton *tb, gpointer data)
{
ObjectProperty *p = data;
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_set (GTK_CONTAINER (parent),
widget, p->spec->name, (int) tb->active, NULL);
}
else
g_object_set (p->obj, p->spec->name, (int) tb->active, NULL);
}
static void
bool_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkToggleButton *tb = GTK_TOGGLE_BUTTON (data);
GValue val = { 0, };
g_value_init (&val, G_TYPE_BOOLEAN);
get_property_value (object, pspec, &val);
if (g_value_get_boolean (&val) != tb->active)
{
block_controller (G_OBJECT (tb));
gtk_toggle_button_set_active (tb, g_value_get_boolean (&val));
unblock_controller (G_OBJECT (tb));
}
gtk_label_set_text (GTK_LABEL (GTK_BIN (tb)->child), g_value_get_boolean (&val) ?
"TRUE" : "FALSE");
g_value_unset (&val);
}
static void
enum_modified (GtkOptionMenu *om, gpointer data)
{
ObjectProperty *p = data;
gint i;
GEnumClass *eclass;
eclass = G_ENUM_CLASS (g_type_class_peek (p->spec->value_type));
i = gtk_option_menu_get_history (om);
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_set (GTK_CONTAINER (parent),
widget, p->spec->name, eclass->values[i].value, NULL);
}
else
g_object_set (p->obj, p->spec->name, eclass->values[i].value, NULL);
}
static void
enum_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkOptionMenu *om = GTK_OPTION_MENU (data);
GValue val = { 0, };
GEnumClass *eclass;
gint i;
eclass = G_ENUM_CLASS (g_type_class_peek (pspec->value_type));
g_value_init (&val, pspec->value_type);
get_property_value (object, pspec, &val);
i = 0;
while (i < eclass->n_values)
{
if (eclass->values[i].value == g_value_get_enum (&val))
break;
++i;
}
if (gtk_option_menu_get_history (om) != i)
{
block_controller (G_OBJECT (om));
gtk_option_menu_set_history (om, i);
unblock_controller (G_OBJECT (om));
}
g_value_unset (&val);
}
static gunichar
unichar_get_value (GtkEntry *entry)
{
const gchar *text = gtk_entry_get_text (entry);
if (text[0])
return g_utf8_get_char (text);
else
return 0;
}
static void
unichar_modified (GtkEntry *entry, gpointer data)
{
ObjectProperty *p = data;
gunichar val = unichar_get_value (entry);
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_set (GTK_CONTAINER (parent),
widget, p->spec->name, val, NULL);
}
else
g_object_set (p->obj, p->spec->name, val, NULL);
}
static void
unichar_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkEntry *entry = GTK_ENTRY (data);
gunichar new_val;
gunichar old_val = unichar_get_value (entry);
GValue val = { 0, };
gchar buf[7];
gint len;
g_value_init (&val, pspec->value_type);
get_property_value (object, pspec, &val);
new_val = (gunichar)g_value_get_uint (&val);
if (new_val != old_val)
{
if (!new_val)
len = 0;
else
len = g_unichar_to_utf8 (new_val, buf);
buf[len] = '\0';
block_controller (G_OBJECT (entry));
gtk_entry_set_text (entry, buf);
unblock_controller (G_OBJECT (entry));
}
}
static void
pointer_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkLabel *label = GTK_LABEL (data);
gchar *str;
gpointer ptr;
g_object_get (object, pspec->name, &ptr, NULL);
str = g_strdup_printf ("Pointer: %p", ptr);
gtk_label_set_text (label, str);
g_free (str);
}
static void
object_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkWidget *label, *button;
gchar *str;
GObject *obj;
const gchar *name;
GList *children = gtk_container_get_children (GTK_CONTAINER (data));
label = GTK_WIDGET (children->data);
button = GTK_WIDGET (children->next->data);
g_object_get (object, pspec->name, &obj, NULL);
g_list_free (children);
if (obj)
name = g_type_name (G_TYPE_FROM_INSTANCE (obj));
else
name = "unknown";
str = g_strdup_printf ("Object: %p (%s)", obj, name);
gtk_label_set_text (GTK_LABEL (label), str);
gtk_widget_set_sensitive (button, G_IS_OBJECT (obj));
if (obj)
g_object_unref (obj);
g_free (str);
}
static void
model_destroy (gpointer data)
{
g_object_steal_data (data, "model-object");
gtk_widget_destroy (data);
}
static void
window_destroy (gpointer data)
{
g_object_steal_data (data, "prop-editor-win");
}
static void
object_properties (GtkWidget *button,
GObject *object)
{
gchar *name;
GObject *obj;
name = (gchar *) g_object_get_data (G_OBJECT (button), "property-name");
g_object_get (object, name, &obj, NULL);
if (G_IS_OBJECT (obj))
create_prop_editor (obj, 0);
}
static GtkWidget *
property_widget (GObject *object,
GParamSpec *spec,
gboolean can_modify)
{
GtkWidget *prop_edit;
GtkAdjustment *adj;
gchar *msg;
GType type = G_PARAM_SPEC_TYPE (spec);
if (type == G_TYPE_PARAM_INT)
{
adj = GTK_ADJUSTMENT (gtk_adjustment_new (G_PARAM_SPEC_INT (spec)->default_value,
G_PARAM_SPEC_INT (spec)->minimum,
G_PARAM_SPEC_INT (spec)->maximum,
1,
MAX ((G_PARAM_SPEC_INT (spec)->maximum -
G_PARAM_SPEC_INT (spec)->minimum) / 10, 1),
0.0));
prop_edit = gtk_spin_button_new (adj, 1.0, 0);
g_object_connect_property (object, spec,
G_CALLBACK (int_changed),
adj, G_OBJECT (adj));
if (can_modify)
connect_controller (G_OBJECT (adj), "value_changed",
object, spec, (GtkSignalFunc) int_modified);
}
else if (type == G_TYPE_PARAM_UINT)
{
adj = GTK_ADJUSTMENT (
gtk_adjustment_new (G_PARAM_SPEC_UINT (spec)->default_value,
G_PARAM_SPEC_UINT (spec)->minimum,
G_PARAM_SPEC_UINT (spec)->maximum,
1,
MAX ((G_PARAM_SPEC_UINT (spec)->maximum -
G_PARAM_SPEC_UINT (spec)->minimum) / 10, 1),
0.0));
prop_edit = gtk_spin_button_new (adj, 1.0, 0);
g_object_connect_property (object, spec,
G_CALLBACK (uint_changed),
adj, G_OBJECT (adj));
if (can_modify)
connect_controller (G_OBJECT (adj), "value_changed",
object, spec, (GtkSignalFunc) uint_modified);
}
else if (type == G_TYPE_PARAM_FLOAT)
{
adj = GTK_ADJUSTMENT (gtk_adjustment_new (G_PARAM_SPEC_FLOAT (spec)->default_value,
G_PARAM_SPEC_FLOAT (spec)->minimum,
G_PARAM_SPEC_FLOAT (spec)->maximum,
0.1,
MAX ((G_PARAM_SPEC_FLOAT (spec)->maximum -
G_PARAM_SPEC_FLOAT (spec)->minimum) / 10, 0.1),
0.0));
prop_edit = gtk_spin_button_new (adj, 0.1, 2);
g_object_connect_property (object, spec,
G_CALLBACK (float_changed),
adj, G_OBJECT (adj));
if (can_modify)
connect_controller (G_OBJECT (adj), "value_changed",
object, spec, (GtkSignalFunc) float_modified);
}
else if (type == G_TYPE_PARAM_DOUBLE)
{
adj = GTK_ADJUSTMENT (gtk_adjustment_new (G_PARAM_SPEC_DOUBLE (spec)->default_value,
G_PARAM_SPEC_DOUBLE (spec)->minimum,
G_PARAM_SPEC_DOUBLE (spec)->maximum,
0.1,
MAX ((G_PARAM_SPEC_DOUBLE (spec)->maximum -
G_PARAM_SPEC_DOUBLE (spec)->minimum) / 10, 0.1),
0.0));
prop_edit = gtk_spin_button_new (adj, 0.1, 2);
g_object_connect_property (object, spec,
G_CALLBACK (double_changed),
adj, G_OBJECT (adj));
if (can_modify)
connect_controller (G_OBJECT (adj), "value_changed",
object, spec, (GtkSignalFunc) double_modified);
}
else if (type == G_TYPE_PARAM_STRING)
{
prop_edit = gtk_entry_new ();
g_object_connect_property (object, spec,
G_CALLBACK (string_changed),
prop_edit, G_OBJECT (prop_edit));
if (can_modify)
connect_controller (G_OBJECT (prop_edit), "changed",
object, spec, (GtkSignalFunc) string_modified);
}
else if (type == G_TYPE_PARAM_BOOLEAN)
{
prop_edit = gtk_toggle_button_new_with_label ("");
g_object_connect_property (object, spec,
G_CALLBACK (bool_changed),
prop_edit, G_OBJECT (prop_edit));
if (can_modify)
connect_controller (G_OBJECT (prop_edit), "toggled",
object, spec, (GtkSignalFunc) bool_modified);
}
else if (type == G_TYPE_PARAM_ENUM)
{
{
GtkWidget *menu;
GEnumClass *eclass;
gint j;
prop_edit = gtk_option_menu_new ();
menu = gtk_menu_new ();
eclass = G_ENUM_CLASS (g_type_class_ref (spec->value_type));
j = 0;
while (j < eclass->n_values)
{
GtkWidget *mi;
mi = gtk_menu_item_new_with_label (eclass->values[j].value_name);
gtk_widget_show (mi);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), mi);
++j;
}
g_type_class_unref (eclass);
gtk_option_menu_set_menu (GTK_OPTION_MENU (prop_edit), menu);
g_object_connect_property (object, spec,
G_CALLBACK (enum_changed),
prop_edit, G_OBJECT (prop_edit));
if (can_modify)
connect_controller (G_OBJECT (prop_edit), "changed",
object, spec, (GtkSignalFunc) enum_modified);
}
}
else if (type == G_TYPE_PARAM_UNICHAR)
{
prop_edit = gtk_entry_new ();
gtk_entry_set_max_length (GTK_ENTRY (prop_edit), 1);
g_object_connect_property (object, spec,
G_CALLBACK (unichar_changed),
prop_edit, G_OBJECT (prop_edit));
if (can_modify)
connect_controller (G_OBJECT (prop_edit), "changed",
object, spec, (GtkSignalFunc) unichar_modified);
}
else if (type == G_TYPE_PARAM_POINTER)
{
prop_edit = gtk_label_new ("");
g_object_connect_property (object, spec,
G_CALLBACK (pointer_changed),
prop_edit, G_OBJECT (prop_edit));
}
else if (type == G_TYPE_PARAM_OBJECT)
{
GtkWidget *label, *button;
prop_edit = gtk_hbox_new (FALSE, 5);
label = gtk_label_new ("");
button = gtk_button_new_with_label ("Properties");
g_object_set_data (G_OBJECT (button), "property-name", spec->name);
g_signal_connect (button, "clicked",
G_CALLBACK (object_properties),
object);
gtk_container_add (GTK_CONTAINER (prop_edit), label);
gtk_container_add (GTK_CONTAINER (prop_edit), button);
g_object_connect_property (object, spec,
G_CALLBACK (object_changed),
prop_edit, G_OBJECT (label));
}
else
{
msg = g_strdup_printf ("uneditable property type: %s",
g_type_name (G_PARAM_SPEC_TYPE (spec)));
prop_edit = gtk_label_new (msg);
g_free (msg);
gtk_misc_set_alignment (GTK_MISC (prop_edit), 0.0, 0.5);
}
return prop_edit;
}
static GtkWidget *
properties_from_type (GObject *object,
GType type,
GtkTooltips *tips)
{
GtkWidget *prop_edit;
GtkWidget *label;
GtkWidget *sw;
GtkWidget *vbox;
GtkWidget *table;
GParamSpec **specs;
guint n_specs;
int i;
if (G_TYPE_IS_INTERFACE (type))
{
gpointer vtable = g_type_default_interface_peek (type);
specs = g_object_interface_list_properties (vtable, &n_specs);
}
else
{
GObjectClass *class = G_OBJECT_CLASS (g_type_class_peek (type));
specs = g_object_class_list_properties (class, &n_specs);
}
if (n_specs == 0)
return NULL;
table = gtk_table_new (n_specs, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 10);
gtk_table_set_row_spacings (GTK_TABLE (table), 3);
i = 0;
while (i < n_specs)
{
GParamSpec *spec = specs[i];
gboolean can_modify;
prop_edit = NULL;
can_modify = ((spec->flags & G_PARAM_WRITABLE) != 0 &&
(spec->flags & G_PARAM_CONSTRUCT_ONLY) == 0);
if ((spec->flags & G_PARAM_READABLE) == 0)
{
/* can't display unreadable properties */
++i;
continue;
}
if (spec->owner_type != type)
{
/* we're only interested in params of type */
++i;
continue;
}
label = gtk_label_new (g_param_spec_get_nick (spec));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, i, i + 1);
prop_edit = property_widget (object, spec, can_modify);
gtk_table_attach_defaults (GTK_TABLE (table), prop_edit, 1, 2, i, i + 1);
if (prop_edit)
{
if (!can_modify)
gtk_widget_set_sensitive (prop_edit, FALSE);
if (g_param_spec_get_blurb (spec))
gtk_tooltips_set_tip (tips, prop_edit, g_param_spec_get_blurb (spec), NULL);
/* set initial value */
g_object_notify (object, spec->name);
}
++i;
}
vbox = gtk_vbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (sw), vbox);
g_free (specs);
return sw;
}
static GtkWidget *
child_properties_from_object (GObject *object,
GtkTooltips *tips)
{
GtkWidget *prop_edit;
GtkWidget *label;
GtkWidget *sw;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *parent;
GParamSpec **specs;
guint n_specs;
gint i;
if (!GTK_IS_WIDGET (object))
return NULL;
parent = gtk_widget_get_parent (GTK_WIDGET (object));
if (!parent)
return NULL;
specs = gtk_container_class_list_child_properties (G_OBJECT_GET_CLASS (parent), &n_specs);
table = gtk_table_new (n_specs, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 10);
gtk_table_set_row_spacings (GTK_TABLE (table), 3);
i = 0;
while (i < n_specs)
{
GParamSpec *spec = specs[i];
gboolean can_modify;
prop_edit = NULL;
can_modify = ((spec->flags & G_PARAM_WRITABLE) != 0 &&
(spec->flags & G_PARAM_CONSTRUCT_ONLY) == 0);
if ((spec->flags & G_PARAM_READABLE) == 0)
{
/* can't display unreadable properties */
++i;
continue;
}
label = gtk_label_new (g_param_spec_get_nick (spec));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, i, i + 1);
mark_child_property (spec);
prop_edit = property_widget (object, spec, can_modify);
gtk_table_attach_defaults (GTK_TABLE (table), prop_edit, 1, 2, i, i + 1);
if (prop_edit)
{
if (!can_modify)
gtk_widget_set_sensitive (prop_edit, FALSE);
if (g_param_spec_get_blurb (spec))
gtk_tooltips_set_tip (tips, prop_edit, g_param_spec_get_blurb (spec), NULL);
/* set initial value */
gtk_widget_child_notify (GTK_WIDGET (object), spec->name);
}
++i;
}
vbox = gtk_vbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (sw), vbox);
g_free (specs);
return sw;
}
static void
kill_tips (GtkWindow *win, GtkObject *tips)
{
gtk_object_destroy (tips);
g_object_unref (tips);
}
/* Pass zero for type if you want all properties */
GtkWidget*
create_prop_editor (GObject *object,
GType type)
{
GtkWidget *win;
GtkWidget *notebook;
GtkTooltips *tips;
GtkWidget *properties;
GtkWidget *label;
gchar *title;
GType *ifaces;
guint n_ifaces;
if ((win = g_object_get_data (G_OBJECT (object), "prop-editor-win")))
{
gtk_window_present (GTK_WINDOW (win));
return win;
}
win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
if (GTK_IS_WIDGET (object))
gtk_window_set_screen (GTK_WINDOW (win),
gtk_widget_get_screen (GTK_WIDGET (object)));
tips = gtk_tooltips_new ();
g_object_ref (tips);
gtk_object_sink (GTK_OBJECT (tips));
/* Kill the tips when the widget goes away. */
g_signal_connect (win, "destroy", G_CALLBACK (kill_tips), tips);
/* hold a weak ref to the object we're editing */
g_object_set_data_full (G_OBJECT (object), "prop-editor-win", win, model_destroy);
g_object_set_data_full (G_OBJECT (win), "model-object", object, window_destroy);
if (type == 0)
{
notebook = gtk_notebook_new ();
gtk_notebook_set_tab_pos (GTK_NOTEBOOK (notebook), GTK_POS_LEFT);
gtk_container_add (GTK_CONTAINER (win), notebook);
type = G_TYPE_FROM_INSTANCE (object);
title = g_strdup_printf ("Properties of %s widget", g_type_name (type));
gtk_window_set_title (GTK_WINDOW (win), title);
g_free (title);
while (type)
{
properties = properties_from_type (object, type, tips);
if (properties)
{
label = gtk_label_new (g_type_name (type));
gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
properties, label);
}
type = g_type_parent (type);
}
ifaces = g_type_interfaces (G_TYPE_FROM_INSTANCE (object), &n_ifaces);
while (n_ifaces--)
{
properties = properties_from_type (object, ifaces[n_ifaces], tips);
if (properties)
{
label = gtk_label_new (g_type_name (ifaces[n_ifaces]));
gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
properties, label);
}
}
g_free (ifaces);
properties = child_properties_from_object (object, tips);
if (properties)
{
label = gtk_label_new ("Child properties");
gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
properties, label);
}
}
else
{
properties = properties_from_type (object, type, tips);
gtk_container_add (GTK_CONTAINER (win), properties);
title = g_strdup_printf ("Properties of %s", g_type_name (type));
gtk_window_set_title (GTK_WINDOW (win), title);
g_free (title);
}
gtk_window_set_default_size (GTK_WINDOW (win), -1, 400);
gtk_widget_show_all (win);
return win;
}
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