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medit/moo/mooutils/mootoggleaction.c

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/*
* mooui/mootoggleaction.c
*
* Copyright (C) 2004-2006 by Yevgen Muntyan <muntyan@math.tamu.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* See COPYING file that comes with this distribution.
*/
#include "mooutils/mootoggleaction.h"
#include "mooutils/mooactiongroup.h"
#include "mooutils/moocompat.h"
#include "mooutils/mooaccel.h"
#include "mooutils/moomarshals.h"
#include "mooutils/mooutils-gobject.h"
#include "mooutils/mooutils-misc.h"
#include <gtk/gtk.h>
#include <string.h>
#define PEEK_DATA(action) (action->object ? MOO_OBJECT_PTR_GET((MooObjectPtr*)action->data) : action->data)
#define PEEK_OBJECT(action) (action->object ? MOO_OBJECT_PTR_GET((MooObjectPtr*)action->data) : NULL)
#define ACTION_DEAD(action) (action->object ? (MOO_OBJECT_PTR_GET((MooObjectPtr*)action->data) == NULL) : FALSE)
static void moo_toggle_action_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void moo_toggle_action_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void moo_toggle_action_finalize (GObject *object);
static GtkWidget *create_menu_item (MooAction *action);
static GtkWidget *create_tool_item (MooAction *action,
GtkWidget *toolbar,
int position,
MooToolItemFlags flags);
static void moo_toggle_action_toggled (MooToggleAction *action,
gboolean active);
static void moo_toggle_action_add_proxy (MooAction *action,
GtkWidget *proxy);
enum {
PROP_0,
PROP_ACTIVE,
PROP_TOGGLED_CALLBACK,
PROP_TOGGLED_OBJECT,
PROP_TOGGLED_DATA
};
enum {
TOGGLED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = {0};
/* MOO_TYPE_TOGGLE_ACTION */
G_DEFINE_TYPE (MooToggleAction, moo_toggle_action, MOO_TYPE_ACTION)
static void moo_toggle_action_class_init (MooToggleActionClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
MooActionClass *action_class = MOO_ACTION_CLASS (klass);
gobject_class->set_property = moo_toggle_action_set_property;
gobject_class->get_property = moo_toggle_action_get_property;
gobject_class->finalize = moo_toggle_action_finalize;
action_class->add_proxy = moo_toggle_action_add_proxy;
action_class->create_menu_item = create_menu_item;
action_class->create_tool_item = create_tool_item;
klass->toggled = moo_toggle_action_toggled;
g_object_class_install_property (gobject_class,
PROP_ACTIVE,
g_param_spec_boolean ("active",
"active",
"active",
TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_TOGGLED_CALLBACK,
g_param_spec_pointer ("toggled-callback",
"toggled-callback",
"toggled-callback",
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_TOGGLED_DATA,
g_param_spec_pointer ("toggled-data",
"toggled-data",
"toggled-data",
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_TOGGLED_OBJECT,
g_param_spec_object ("toggled-object",
"toggled-object",
"toggled-object",
G_TYPE_OBJECT,
G_PARAM_READWRITE));
signals[TOGGLED] =
g_signal_new ("toggled",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (MooToggleActionClass, toggled),
NULL, NULL,
_moo_marshal_VOID__BOOL,
G_TYPE_NONE, 1,
G_TYPE_BOOLEAN);
}
static void moo_toggle_action_init (G_GNUC_UNUSED MooToggleAction *action)
{
}
static void
moo_toggle_action_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MooToggleAction *action = MOO_TOGGLE_ACTION (object);
switch (prop_id)
{
case PROP_ACTIVE:
g_value_set_boolean (value, action->active ? TRUE : FALSE);
break;
case PROP_TOGGLED_CALLBACK:
g_value_set_pointer (value, action->callback);
break;
case PROP_TOGGLED_DATA:
g_value_set_pointer (value, PEEK_DATA (action));
break;
case PROP_TOGGLED_OBJECT:
g_value_set_pointer (value, PEEK_OBJECT (action));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
object_died (MooToggleAction *action)
{
g_return_if_fail (action->object);
moo_object_ptr_free (action->data);
action->data = NULL;
}
static void moo_toggle_action_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MooToggleAction *action = MOO_TOGGLE_ACTION (object);
switch (prop_id)
{
case PROP_ACTIVE:
moo_toggle_action_set_active (action, g_value_get_boolean (value));
break;
case PROP_TOGGLED_CALLBACK:
action->callback = g_value_get_pointer (value);
break;
case PROP_TOGGLED_DATA:
if (action->object)
moo_object_ptr_free (action->data);
action->data = g_value_get_pointer (value);
action->object = FALSE;
break;
case PROP_TOGGLED_OBJECT:
if (action->object)
moo_object_ptr_free (action->data);
if (G_VALUE_HOLDS_OBJECT (value))
action->data = moo_object_ptr_new (g_value_get_object (value),
(GWeakNotify) object_died,
action);
else
action->data = NULL;
action->object = TRUE;
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
moo_toggle_action_finalize (GObject *object)
{
MooToggleAction *action = MOO_TOGGLE_ACTION (object);
if (action->object)
moo_object_ptr_free (action->data);
G_OBJECT_CLASS(moo_toggle_action_parent_class)->finalize (object);
}
static void
moo_toggle_action_toggled (MooToggleAction *action,
gboolean active)
{
if ((action->active && !active) || (!action->active && active))
{
active = active ? TRUE : FALSE;
action->active = active;
if (action->callback && !ACTION_DEAD (action))
action->callback (PEEK_DATA (action), active);
g_object_notify (G_OBJECT (action), "active");
}
}
void
moo_toggle_action_set_active (MooToggleAction *action,
gboolean active)
{
g_return_if_fail (MOO_IS_TOGGLE_ACTION (action));
g_signal_emit (action, signals[TOGGLED], 0, active);
}
static GtkWidget*
create_menu_item (MooAction *action)
{
GtkWidget *item = NULL;
if (action->stock_id)
{
GtkStockItem stock_item;
if (gtk_stock_lookup (action->stock_id, &stock_item))
item = gtk_check_menu_item_new_with_mnemonic (stock_item.label);
else
g_warning ("could not find stock item '%s'", action->stock_id);
}
if (!item)
item = gtk_check_menu_item_new_with_label (action->label);
gtk_menu_item_set_accel_path (GTK_MENU_ITEM (item),
_moo_action_get_accel_path (action));
if (action->force_accel_label)
{
GtkWidget *accel_label = gtk_bin_get_child (GTK_BIN (item));
if (GTK_IS_ACCEL_LABEL (accel_label))
moo_accel_label_set_action (accel_label, action);
else
g_critical ("%s: oops", G_STRLOC);
}
moo_toggle_action_add_proxy (action, item);
return item;
}
static GtkWidget*
create_tool_item (MooAction *action,
GtkWidget *toolbar,
int position,
G_GNUC_UNUSED MooToolItemFlags flags)
{
#if GTK_CHECK_VERSION(2,4,0)
GtkToolItem *item = NULL;
if (action->stock_id)
{
item = gtk_toggle_tool_button_new_from_stock (action->stock_id);
}
else
{
GtkWidget *icon = NULL;
if (action->icon_stock_id)
{
icon = gtk_image_new_from_stock (action->icon_stock_id,
gtk_toolbar_get_icon_size (GTK_TOOLBAR (toolbar)));
if (!icon) g_warning ("could not create stock icon '%s'",
action->icon_stock_id);
else gtk_widget_show (icon);
}
item = gtk_toggle_tool_button_new ();
gtk_tool_button_set_icon_widget (GTK_TOOL_BUTTON (item), icon);
gtk_tool_button_set_use_underline (GTK_TOOL_BUTTON (item), TRUE);
}
if (action->tooltip)
moo_widget_set_tooltip (GTK_WIDGET (item), action->tooltip);
gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, position);
gtk_container_child_set (GTK_CONTAINER (toolbar), GTK_WIDGET (item),
"homogeneous", FALSE, NULL);
#else /* !GTK_CHECK_VERSION(2,4,0) */
GtkWidget *item = NULL;
GtkWidget *icon = NULL;
if (action->stock_id || action->icon_stock_id)
{
icon = gtk_image_new_from_stock (action->stock_id ? action->stock_id : action->icon_stock_id,
gtk_toolbar_get_icon_size (toolbar));
if (!icon) g_warning ("could not create stock icon '%s'",
action->stock_id ? action->stock_id : action->icon_stock_id);
else gtk_widget_show (icon);
}
item = gtk_toolbar_insert_element (toolbar,
GTK_TOOLBAR_CHILD_TOGGLEBUTTON,
NULL,
action->label,
action->tooltip,
action->tooltip,
icon,
NULL,
action,
position);
gtk_button_set_use_underline (GTK_BUTTON (item), TRUE);
#endif /* !GTK_CHECK_VERSION(2,4,0) */
moo_toggle_action_add_proxy (action, GTK_WIDGET (item));
return GTK_WIDGET (item);
}
static void
moo_toggle_action_add_proxy (MooAction *action,
GtkWidget *proxy)
{
if (GTK_IS_CHECK_MENU_ITEM (proxy) ||
#if GTK_CHECK_VERSION(2,4,0)
GTK_IS_TOGGLE_TOOL_BUTTON (proxy) ||
#endif /* GTK_CHECK_VERSION(2,4,0) */
GTK_IS_TOGGLE_BUTTON (proxy))
{
moo_sync_bool_property (proxy, "active", action, "active", FALSE);
}
else
{
g_critical ("unknown proxy type");
}
MOO_ACTION_CLASS(moo_toggle_action_parent_class)->add_proxy (action, proxy);
}
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