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gtk/tests/prop-editor.c

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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, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <gtk/gtk.h>
#include "prop-editor.h"
typedef struct
{
gpointer instance;
GObject *alive_object;
gulong 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;
gulong 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,
GCallback 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) gtk_adjustment_get_value (adj), NULL);
}
else
g_object_set (p->obj, p->spec->name, (int) gtk_adjustment_get_value (adj), 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 = G_VALUE_INIT;
g_value_init (&val, G_TYPE_INT);
get_property_value (object, pspec, &val);
if (g_value_get_int (&val) != (int)gtk_adjustment_get_value (adj))
{
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) gtk_adjustment_get_value (adj), NULL);
}
else
g_object_set (p->obj, p->spec->name, (guint) gtk_adjustment_get_value (adj), NULL);
}
static void
uint_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkAdjustment *adj = GTK_ADJUSTMENT (data);
GValue val = G_VALUE_INIT;
g_value_init (&val, G_TYPE_UINT);
get_property_value (object, pspec, &val);
if (g_value_get_uint (&val) != (guint)gtk_adjustment_get_value (adj))
{
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) gtk_adjustment_get_value (adj), NULL);
}
else
g_object_set (p->obj, p->spec->name, (float) gtk_adjustment_get_value (adj), NULL);
}
static void
float_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkAdjustment *adj = GTK_ADJUSTMENT (data);
GValue val = G_VALUE_INIT;
g_value_init (&val, G_TYPE_FLOAT);
get_property_value (object, pspec, &val);
if (g_value_get_float (&val) != (float) gtk_adjustment_get_value (adj))
{
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) gtk_adjustment_get_value (adj), NULL);
}
else
g_object_set (p->obj, p->spec->name, (double) gtk_adjustment_get_value (adj), NULL);
}
static void
double_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkAdjustment *adj = GTK_ADJUSTMENT (data);
GValue val = G_VALUE_INIT;
g_value_init (&val, G_TYPE_DOUBLE);
get_property_value (object, pspec, &val);
if (g_value_get_double (&val) != gtk_adjustment_get_value (adj))
{
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 = G_VALUE_INIT;
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) gtk_toggle_button_get_active (tb),
NULL);
}
else
g_object_set (p->obj, p->spec->name, (int) gtk_toggle_button_get_active (tb), NULL);
}
static void
bool_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkToggleButton *tb = GTK_TOGGLE_BUTTON (data);
GtkWidget *child;
GValue val = G_VALUE_INIT;
g_value_init (&val, G_TYPE_BOOLEAN);
get_property_value (object, pspec, &val);
if (g_value_get_boolean (&val) != gtk_toggle_button_get_active (tb))
{
block_controller (G_OBJECT (tb));
gtk_toggle_button_set_active (tb, g_value_get_boolean (&val));
unblock_controller (G_OBJECT (tb));
}
child = gtk_bin_get_child (GTK_BIN (tb));
gtk_label_set_text (GTK_LABEL (child),
g_value_get_boolean (&val) ? "TRUE" : "FALSE");
g_value_unset (&val);
}
static void
enum_modified (GtkComboBox *cb, gpointer data)
{
ObjectProperty *p = data;
gint i;
GEnumClass *eclass;
eclass = G_ENUM_CLASS (g_type_class_peek (p->spec->value_type));
i = gtk_combo_box_get_active (cb);
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)
{
GtkComboBox *cb = GTK_COMBO_BOX (data);
GValue val = G_VALUE_INIT;
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_combo_box_get_active (cb) != i)
{
block_controller (G_OBJECT (cb));
gtk_combo_box_set_active (cb, i);
unblock_controller (G_OBJECT (cb));
}
g_value_unset (&val);
}
static void
flags_modified (GtkCheckButton *button, gpointer data)
{
ObjectProperty *p = data;
gboolean active;
GFlagsClass *fclass;
guint flags;
gint i;
fclass = G_FLAGS_CLASS (g_type_class_peek (p->spec->value_type));
active = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button));
i = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (button), "index"));
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_get (GTK_CONTAINER (parent),
widget, p->spec->name, &flags, NULL);
if (active)
flags |= fclass->values[i].value;
else
flags &= ~fclass->values[i].value;
gtk_container_child_set (GTK_CONTAINER (parent),
widget, p->spec->name, flags, NULL);
}
else
{
g_object_get (p->obj, p->spec->name, &flags, NULL);
if (active)
flags |= fclass->values[i].value;
else
flags &= ~fclass->values[i].value;
g_object_set (p->obj, p->spec->name, flags, NULL);
}
}
static void
flags_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GList *children, *c;
GValue val = G_VALUE_INIT;
GFlagsClass *fclass;
guint flags;
gint i;
fclass = G_FLAGS_CLASS (g_type_class_peek (pspec->value_type));
g_value_init (&val, pspec->value_type);
get_property_value (object, pspec, &val);
flags = g_value_get_flags (&val);
g_value_unset (&val);
children = gtk_container_get_children (GTK_CONTAINER (data));
for (c = children, i = 0; c; c = c->next, i++)
{
block_controller (G_OBJECT (c->data));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (c->data),
(fclass->values[i].value & flags) != 0);
unblock_controller (G_OBJECT (c->data));
}
g_list_free (children);
}
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 = G_VALUE_INIT;
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 gchar *
object_label (GObject *obj, GParamSpec *pspec)
{
const gchar *name;
if (obj)
name = g_type_name (G_TYPE_FROM_INSTANCE (obj));
else if (pspec)
name = g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec));
else
name = "unknown";
return g_strdup_printf ("Object: %p (%s)", obj, name);
}
static void
object_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkWidget *label, *button;
gchar *str;
GObject *obj;
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);
str = object_label (obj, pspec);
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 void
rgba_modified (GtkColorButton *cb, gpointer data)
{
ObjectProperty *p = data;
GdkRGBA color;
gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (cb), &color);
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, &color, NULL);
}
else
g_object_set (p->obj, p->spec->name, &color, NULL);
}
static void
rgba_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkColorButton *cb = GTK_COLOR_BUTTON (data);
GValue val = G_VALUE_INIT;
GdkRGBA *color;
GdkRGBA cb_color;
g_value_init (&val, GDK_TYPE_RGBA);
get_property_value (object, pspec, &val);
color = g_value_get_boxed (&val);
gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (cb), &cb_color);
if (color != NULL && !gdk_rgba_equal (color, &cb_color))
{
block_controller (G_OBJECT (cb));
gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (cb), color);
unblock_controller (G_OBJECT (cb));
}
g_value_unset (&val);
}
static void
color_modified (GtkColorButton *cb, gpointer data)
{
ObjectProperty *p = data;
GValue val = G_VALUE_INIT;
g_value_init (&val, GDK_TYPE_COLOR);
g_object_get_property (G_OBJECT (cb), "color", &val);
if (is_child_property (p->spec))
{
GtkWidget *widget = GTK_WIDGET (p->obj);
GtkWidget *parent = gtk_widget_get_parent (widget);
gtk_container_child_set_property (GTK_CONTAINER (parent),
widget, p->spec->name, &val);
}
else
g_object_set_property (p->obj, p->spec->name, &val);
g_value_unset (&val);
}
static void
color_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkColorButton *cb = GTK_COLOR_BUTTON (data);
GValue val = G_VALUE_INIT;
g_value_init (&val, GDK_TYPE_COLOR);
get_property_value (object, pspec, &val);
if (g_value_get_boxed (&val))
{
block_controller (G_OBJECT (cb));
g_object_set_property (G_OBJECT (cb), "color", &val);
unblock_controller (G_OBJECT (cb));
}
g_value_unset (&val);
}
static void
font_modified (GtkFontChooser *fb, GParamSpec *pspec, gpointer data)
{
ObjectProperty *p = data;
PangoFontDescription *font_desc;
font_desc = gtk_font_chooser_get_font_desc (fb);
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, font_desc, NULL);
}
else
g_object_set (p->obj, p->spec->name, font_desc, NULL);
pango_font_description_free (font_desc);
}
static void
font_changed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkFontChooser *fb = GTK_FONT_CHOOSER (data);
GValue val = G_VALUE_INIT;
const PangoFontDescription *font_desc;
PangoFontDescription *fb_font_desc;
g_value_init (&val, PANGO_TYPE_FONT_DESCRIPTION);
get_property_value (object, pspec, &val);
font_desc = g_value_get_boxed (&val);
fb_font_desc = gtk_font_chooser_get_font_desc (fb);
if (font_desc == NULL ||
(fb_font_desc != NULL &&
!pango_font_description_equal (fb_font_desc, font_desc)))
{
block_controller (G_OBJECT (fb));
gtk_font_chooser_set_font_desc (fb, font_desc);
unblock_controller (G_OBJECT (fb));
}
g_value_unset (&val);
pango_font_description_free (fb_font_desc);
}
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_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, G_CALLBACK (int_modified));
}
else if (type == G_TYPE_PARAM_UINT)
{
adj = 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, G_CALLBACK (uint_modified));
}
else if (type == G_TYPE_PARAM_FLOAT)
{
adj = 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, G_CALLBACK (float_modified));
}
else if (type == G_TYPE_PARAM_DOUBLE)
{
adj = 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, G_CALLBACK (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, G_CALLBACK (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, G_CALLBACK (bool_modified));
}
else if (type == G_TYPE_PARAM_ENUM)
{
{
GEnumClass *eclass;
gint j;
prop_edit = gtk_combo_box_text_new ();
eclass = G_ENUM_CLASS (g_type_class_ref (spec->value_type));
j = 0;
while (j < eclass->n_values)
{
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (prop_edit),
eclass->values[j].value_name);
++j;
}
g_type_class_unref (eclass);
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, G_CALLBACK (enum_modified));
}
}
else if (type == G_TYPE_PARAM_FLAGS)
{
{
GFlagsClass *fclass;
gint j;
prop_edit = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
fclass = G_FLAGS_CLASS (g_type_class_ref (spec->value_type));
for (j = 0; j < fclass->n_values; j++)
{
GtkWidget *b;
b = gtk_check_button_new_with_label (fclass->values[j].value_name);
g_object_set_data (G_OBJECT (b), "index", GINT_TO_POINTER (j));
gtk_widget_show (b);
gtk_box_pack_start (GTK_BOX (prop_edit), b, FALSE, FALSE, 0);
if (can_modify)
connect_controller (G_OBJECT (b), "toggled",
object, spec, G_CALLBACK (flags_modified));
}
g_type_class_unref (fclass);
g_object_connect_property (object, spec,
G_CALLBACK (flags_changed),
prop_edit, G_OBJECT (prop_edit));
}
}
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, G_CALLBACK (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_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
label = gtk_label_new ("");
button = gtk_button_new_with_label ("Properties");
g_object_set_data (G_OBJECT (button), "property-name", (gpointer) 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));
/* The Properties button is not really modifying, anyway */
can_modify = TRUE;
}
else if (type == G_TYPE_PARAM_BOXED &&
G_PARAM_SPEC_VALUE_TYPE (spec) == GDK_TYPE_RGBA)
{
prop_edit = gtk_color_button_new ();
gtk_color_chooser_set_use_alpha (GTK_COLOR_CHOOSER (prop_edit), TRUE);
g_object_connect_property (object, spec,
G_CALLBACK (rgba_changed),
prop_edit, G_OBJECT (prop_edit));
if (can_modify)
connect_controller (G_OBJECT (prop_edit), "color-set",
object, spec, G_CALLBACK (rgba_modified));
}
else if (type == G_TYPE_PARAM_BOXED &&
G_PARAM_SPEC_VALUE_TYPE (spec) == GDK_TYPE_COLOR)
{
prop_edit = gtk_color_button_new ();
g_object_connect_property (object, spec,
G_CALLBACK (color_changed),
prop_edit, G_OBJECT (prop_edit));
if (can_modify)
connect_controller (G_OBJECT (prop_edit), "color-set",
object, spec, G_CALLBACK (color_modified));
}
else if (type == G_TYPE_PARAM_BOXED &&
G_PARAM_SPEC_VALUE_TYPE (spec) == PANGO_TYPE_FONT_DESCRIPTION)
{
prop_edit = gtk_font_button_new ();
g_object_connect_property (object, spec,
G_CALLBACK (font_changed),
prop_edit, G_OBJECT (prop_edit));
if (can_modify)
connect_controller (G_OBJECT (prop_edit), "notify::font-desc",
object, spec, G_CALLBACK (font_modified));
}
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_widget_set_halign (prop_edit, GTK_ALIGN_START);
gtk_widget_set_valign (prop_edit, GTK_ALIGN_CENTER);
}
if (!can_modify)
gtk_widget_set_sensitive (prop_edit, FALSE);
if (g_param_spec_get_blurb (spec))
gtk_widget_set_tooltip_text (prop_edit, g_param_spec_get_blurb (spec));
return prop_edit;
}
static GtkWidget *
properties_from_type (GObject *object,
GType type)
{
GtkWidget *prop_edit;
GtkWidget *label;
GtkWidget *sw;
GtkWidget *vbox;
GtkWidget *grid;
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) {
g_free (specs);
return NULL;
}
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 10);
gtk_grid_set_row_spacing (GTK_GRID (grid), 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_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_grid_attach (GTK_GRID (grid), label, 0, i, 1, 1);
prop_edit = property_widget (object, spec, can_modify);
gtk_grid_attach (GTK_GRID (grid), prop_edit, 1, i, 1, 1);
/* set initial value */
g_object_notify (object, spec->name);
++i;
}
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_box_pack_start (GTK_BOX (vbox), grid, 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_container_add (GTK_CONTAINER (sw), vbox);
g_free (specs);
return sw;
}
static GtkWidget *
child_properties_from_object (GObject *object)
{
GtkWidget *prop_edit;
GtkWidget *label;
GtkWidget *sw;
GtkWidget *vbox;
GtkWidget *grid;
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);
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 10);
gtk_grid_set_row_spacing (GTK_GRID (grid), 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_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_grid_attach (GTK_GRID (grid), label, 0, i, 1, 1);
mark_child_property (spec);
prop_edit = property_widget (object, spec, can_modify);
gtk_grid_attach (GTK_GRID (grid), prop_edit, 1, i, 1, 1);
/* set initial value */
gtk_widget_child_notify (GTK_WIDGET (object), spec->name);
++i;
}
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_box_pack_start (GTK_BOX (vbox), grid, 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_container_add (GTK_CONTAINER (sw), vbox);
g_free (specs);
return sw;
}
static void
child_properties (GtkWidget *button,
GObject *object)
{
create_prop_editor (object, 0);
}
static GtkWidget *
children_from_object (GObject *object)
{
GList *children, *c;
GtkWidget *grid, *label, *prop_edit, *button, *vbox, *sw;
gchar *str;
gint i;
if (!GTK_IS_CONTAINER (object))
return NULL;
children = gtk_container_get_children (GTK_CONTAINER (object));
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 10);
gtk_grid_set_row_spacing (GTK_GRID (grid), 3);
for (c = children, i = 0; c; c = c->next, i++)
{
object = c->data;
label = gtk_label_new ("Child");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_grid_attach (GTK_GRID (grid), label, 0, i, 1, 1);
prop_edit = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
str = object_label (object, NULL);
label = gtk_label_new (str);
g_free (str);
button = gtk_button_new_with_label ("Properties");
g_signal_connect (button, "clicked",
G_CALLBACK (child_properties),
object);
gtk_container_add (GTK_CONTAINER (prop_edit), label);
gtk_container_add (GTK_CONTAINER (prop_edit), button);
gtk_grid_attach (GTK_GRID (grid), prop_edit, 1, i, 1, 1);
}
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_box_pack_start (GTK_BOX (vbox), grid, 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_container_add (GTK_CONTAINER (sw), vbox);
g_list_free (children);
return sw;
}
static GtkWidget *
cells_from_object (GObject *object)
{
GList *cells, *c;
GtkWidget *grid, *label, *prop_edit, *button, *vbox, *sw;
gchar *str;
gint i;
if (!GTK_IS_CELL_LAYOUT (object))
return NULL;
cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (object));
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 10);
gtk_grid_set_row_spacing (GTK_GRID (grid), 3);
for (c = cells, i = 0; c; c = c->next, i++)
{
object = c->data;
label = gtk_label_new ("Cell");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_grid_attach (GTK_GRID (grid), label, 0, i, 1, 1);
prop_edit = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
str = object_label (object, NULL);
label = gtk_label_new (str);
g_free (str);
button = gtk_button_new_with_label ("Properties");
g_signal_connect (button, "clicked",
G_CALLBACK (child_properties),
object);
gtk_container_add (GTK_CONTAINER (prop_edit), label);
gtk_container_add (GTK_CONTAINER (prop_edit), button);
gtk_grid_attach (GTK_GRID (grid), prop_edit, 1, i, 1, 1);
}
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_box_pack_start (GTK_BOX (vbox), grid, 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_container_add (GTK_CONTAINER (sw), vbox);
g_list_free (cells);
return sw;
}
static void
open_parent_widget (GtkWidget *button,
GObject *object)
{
GtkWidget *parent;
parent = gtk_widget_get_parent (GTK_WIDGET (object));
if (parent != NULL)
create_prop_editor (G_OBJECT (parent), 0);
}
/* Pass zero for type if you want all properties */
GtkWidget*
create_prop_editor (GObject *object,
GType type)
{
GtkWidget *win, *parent;
GtkWidget *notebook;
GtkWidget *properties;
GtkWidget *label;
GtkWidget *button;
GtkWidget *vbox;
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)));
/* 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);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (win), vbox);
if (type == 0)
{
notebook = gtk_notebook_new ();
gtk_notebook_set_tab_pos (GTK_NOTEBOOK (notebook), GTK_POS_LEFT);
gtk_box_pack_start (GTK_BOX (vbox), notebook, TRUE, TRUE, 0);
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);
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]);
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);
if (properties)
{
label = gtk_label_new ("Child properties");
gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
properties, label);
}
properties = children_from_object (object);
if (properties)
{
label = gtk_label_new ("Children");
gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
properties, label);
}
properties = cells_from_object (object);
if (properties)
{
label = gtk_label_new ("Cell renderers");
gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
properties, label);
}
if (GTK_IS_WIDGET (object))
{
parent = gtk_widget_get_parent (GTK_WIDGET (object));
if (parent != NULL)
{
button = gtk_button_new_with_label ("Parent widget");
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (open_parent_widget),
object);
}
}
}
else
{
properties = properties_from_type (object, type);
gtk_box_pack_start (GTK_BOX (vbox), properties, TRUE, TRUE, 0);
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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