/* LIBGIMP - The GIMP Library * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball * * gimpcontroller.c * Copyright (C) 2004 Michael Natterer * * 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 "config.h" #include #include "libgimpcolor/gimpcolor.h" #include "gimpwidgetstypes.h" #include "gimpwidgetsmarshal.h" #define GIMP_ENABLE_CONTROLLER_UNDER_CONSTRUCTION #include "gimpcontroller.h" enum { PROP_0, PROP_NAME, PROP_STATE }; enum { EVENT, LAST_SIGNAL }; static void gimp_controller_class_init (GimpControllerClass *klass); static void gimp_controller_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec); static void gimp_controller_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec); static GObjectClass *parent_class = NULL; static guint controller_signals[LAST_SIGNAL] = { 0 }; GType gimp_controller_get_type (void) { static GType controller_type = 0; if (! controller_type) { static const GTypeInfo controller_info = { sizeof (GimpControllerClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) gimp_controller_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GimpController), 0, /* n_preallocs */ NULL /* instance_init */ }; controller_type = g_type_register_static (G_TYPE_OBJECT, "GimpController", &controller_info, 0); } return controller_type; } gboolean gimp_controller_boolean_handled_accumulator (GSignalInvocationHint *ihint, GValue *return_accu, const GValue *handler_return, gpointer dummy) { gboolean continue_emission; gboolean signal_handled; signal_handled = g_value_get_boolean (handler_return); g_value_set_boolean (return_accu, signal_handled); continue_emission = ! signal_handled; return continue_emission; } static void gimp_controller_class_init (GimpControllerClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); parent_class = g_type_class_peek_parent (klass); object_class->set_property = gimp_controller_set_property; object_class->get_property = gimp_controller_get_property; g_object_class_install_property (object_class, PROP_NAME, g_param_spec_string ("name", NULL, NULL, "Unnamed Controller", G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); g_object_class_install_property (object_class, PROP_STATE, g_param_spec_string ("state", NULL, NULL, "Unknown", G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); controller_signals[EVENT] = g_signal_new ("event", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GimpControllerClass, event), gimp_controller_boolean_handled_accumulator, NULL, _gimp_widgets_marshal_BOOLEAN__POINTER, G_TYPE_BOOLEAN, 1, G_TYPE_POINTER); klass->name = "Unnamed"; klass->help_domain = NULL; klass->help_id = NULL; klass->get_n_events = NULL; klass->get_event_name = NULL; klass->event = NULL; } static void gimp_controller_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { GimpController *controller = GIMP_CONTROLLER (object); switch (property_id) { case PROP_NAME: if (controller->name) g_free (controller->name); controller->name = g_value_dup_string (value); break; case PROP_STATE: if (controller->state) g_free (controller->state); controller->state = g_value_dup_string (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static void gimp_controller_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { GimpController *controller = GIMP_CONTROLLER (object); switch (property_id) { case PROP_NAME: g_value_set_string (value, controller->name); break; case PROP_STATE: g_value_set_string (value, controller->state); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } GimpController * gimp_controller_new (GType controller_type) { GimpController *controller; g_return_val_if_fail (g_type_is_a (controller_type, GIMP_TYPE_CONTROLLER), NULL); controller = g_object_new (controller_type, NULL); return controller; } gint gimp_controller_get_n_events (GimpController *controller) { g_return_val_if_fail (GIMP_IS_CONTROLLER (controller), 0); if (GIMP_CONTROLLER_GET_CLASS (controller)->get_n_events) return GIMP_CONTROLLER_GET_CLASS (controller)->get_n_events (controller); return 0; } const gchar * gimp_controller_get_event_name (GimpController *controller, gint event_id) { const gchar *name = NULL; g_return_val_if_fail (GIMP_IS_CONTROLLER (controller), NULL); if (GIMP_CONTROLLER_GET_CLASS (controller)->get_event_name) name = GIMP_CONTROLLER_GET_CLASS (controller)->get_event_name (controller, event_id); if (! name) name = ""; return name; } const gchar * gimp_controller_get_event_blurb (GimpController *controller, gint event_id) { const gchar *blurb = NULL; g_return_val_if_fail (GIMP_IS_CONTROLLER (controller), NULL); if (GIMP_CONTROLLER_GET_CLASS (controller)->get_event_blurb) blurb = GIMP_CONTROLLER_GET_CLASS (controller)->get_event_blurb (controller, event_id); if (! blurb) blurb = ""; return blurb; } gboolean gimp_controller_event (GimpController *controller, const GimpControllerEvent *event) { gboolean retval = FALSE; g_return_val_if_fail (GIMP_IS_CONTROLLER (controller), FALSE); g_return_val_if_fail (event != NULL, FALSE); g_signal_emit (controller, controller_signals[EVENT], 0, event, &retval); return retval; }