/* The GIMP -- an image manipulation program * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * gimpcontainerview.c * Copyright (C) 2001-2003 Michael Natterer * * 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. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include #include #include "libgimpwidgets/gimpwidgets.h" #include "widgets-types.h" #include "core/gimpcontainer.h" #include "core/gimpcontext.h" #include "core/gimpmarshal.h" #include "core/gimpviewable.h" #include "gimpcontainerview.h" #include "gimpdnd.h" #include "gimppreviewrenderer.h" enum { PROP_0, PROP_CONTAINER, PROP_CONTEXT }; enum { SELECT_ITEM, ACTIVATE_ITEM, CONTEXT_ITEM, LAST_SIGNAL }; static void gimp_container_view_class_init (GimpContainerViewClass *klass); static void gimp_container_view_init (GimpContainerView *view, GimpContainerViewClass *klass); static void gimp_container_view_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec); static void gimp_container_view_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec); static void gimp_container_view_destroy (GtkObject *object); static void gimp_container_view_real_set_container (GimpContainerView *view, GimpContainer *container); static void gimp_container_view_clear_items (GimpContainerView *view); static void gimp_container_view_real_clear_items (GimpContainerView *view); static void gimp_container_view_add_foreach (GimpViewable *viewable, GimpContainerView *view); static void gimp_container_view_add (GimpContainerView *view, GimpViewable *viewable, GimpContainer *container); static void gimp_container_view_remove (GimpContainerView *view, GimpViewable *viewable, GimpContainer *container); static void gimp_container_view_reorder (GimpContainerView *view, GimpViewable *viewable, gint new_index, GimpContainer *container); static void gimp_container_view_freeze (GimpContainerView *view, GimpContainer *container); static void gimp_container_view_thaw (GimpContainerView *view, GimpContainer *container); static void gimp_container_view_name_changed (GimpViewable *viewable, GimpContainerView *view); static void gimp_container_view_context_changed (GimpContext *context, GimpViewable *viewable, GimpContainerView *view); static void gimp_container_view_viewable_dropped (GtkWidget *widget, GimpViewable *viewable, gpointer data); static void gimp_container_view_button_viewable_dropped (GtkWidget *widget, GimpViewable *viewable, gpointer data); static guint view_signals[LAST_SIGNAL] = { 0 }; static GimpEditorClass *parent_class = NULL; GType gimp_container_view_get_type (void) { static GType type = 0; if (! type) { static const GTypeInfo view_info = { sizeof (GimpContainerViewClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) gimp_container_view_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GimpContainerView), 0, /* n_preallocs */ (GInstanceInitFunc) gimp_container_view_init, }; type = g_type_register_static (GIMP_TYPE_EDITOR, "GimpContainerView", &view_info, 0); } return type; } static void gimp_container_view_class_init (GimpContainerViewClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (klass); parent_class = g_type_class_peek_parent (klass); view_signals[SELECT_ITEM] = g_signal_new ("select_item", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GimpContainerViewClass, select_item), NULL, NULL, gimp_marshal_BOOLEAN__OBJECT_POINTER, G_TYPE_BOOLEAN, 2, GIMP_TYPE_OBJECT, G_TYPE_POINTER); view_signals[ACTIVATE_ITEM] = g_signal_new ("activate_item", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GimpContainerViewClass, activate_item), NULL, NULL, gimp_marshal_VOID__OBJECT_POINTER, G_TYPE_NONE, 2, GIMP_TYPE_OBJECT, G_TYPE_POINTER); view_signals[CONTEXT_ITEM] = g_signal_new ("context_item", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GimpContainerViewClass, context_item), NULL, NULL, gimp_marshal_VOID__OBJECT_POINTER, G_TYPE_NONE, 2, GIMP_TYPE_OBJECT, G_TYPE_POINTER); object_class->set_property = gimp_container_view_set_property; object_class->get_property = gimp_container_view_get_property; gtk_object_class->destroy = gimp_container_view_destroy; klass->select_item = NULL; klass->activate_item = NULL; klass->context_item = NULL; klass->set_container = gimp_container_view_real_set_container; klass->insert_item = NULL; klass->remove_item = NULL; klass->reorder_item = NULL; klass->rename_item = NULL; klass->clear_items = gimp_container_view_real_clear_items; klass->set_preview_size = NULL; klass->insert_data_free = NULL; g_object_class_install_property (object_class, PROP_CONTAINER, g_param_spec_object ("container", NULL, NULL, GIMP_TYPE_CONTAINER, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_CONTEXT, g_param_spec_object ("context", NULL, NULL, GIMP_TYPE_CONTEXT, G_PARAM_READWRITE)); } static void gimp_container_view_init (GimpContainerView *view, GimpContainerViewClass *klass) { } static void gimp_container_view_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { GimpContainerView *view = GIMP_CONTAINER_VIEW (object); switch (property_id) { case PROP_CONTAINER: gimp_container_view_set_container (view, g_value_get_object (value)); break; case PROP_CONTEXT: gimp_container_view_set_context (view, g_value_get_object (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static void gimp_container_view_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { GimpContainerView *view = GIMP_CONTAINER_VIEW (object); switch (property_id) { case PROP_CONTAINER: g_value_set_object (value, gimp_container_view_get_container (view)); break; case PROP_CONTEXT: g_value_set_object (value, gimp_container_view_get_context (view)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static void gimp_container_view_destroy (GtkObject *object) { GimpContainerView *view = GIMP_CONTAINER_VIEW (object); GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); if (private->container) gimp_container_view_set_container (view, NULL); if (private->context) gimp_container_view_set_context (view, NULL); if (private->hash_table) { g_hash_table_destroy (private->hash_table); private->hash_table = NULL; } GTK_OBJECT_CLASS (parent_class)->destroy (object); } GimpContainerViewPrivate * gimp_container_view_get_private (GimpContainerView *view) { GimpContainerViewPrivate *private; static GQuark view_private_key = 0; g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), NULL); if (! view_private_key) view_private_key = g_quark_from_static_string ("gimp-container-view-private"); private = g_object_get_qdata ((GObject *) (GObject *) view, view_private_key); if (! private) { GimpContainerViewClass *klass = GIMP_CONTAINER_VIEW_GET_CLASS (view); private = g_new0 (GimpContainerViewPrivate, 1); private->container = NULL; private->context = NULL; private->hash_table = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, klass->insert_data_free); private->preview_size = 0; private->preview_border_width = 1; private->reorderable = FALSE; g_object_set_qdata ((GObject *) view, view_private_key, private); } return private; } void gimp_container_view_construct (GimpContainerView *view, GimpContainer *container, GimpContext *context, gint preview_size, gint preview_border_width, gboolean reorderable) { GimpContainerViewPrivate *private; g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); g_return_if_fail (container == NULL || GIMP_IS_CONTAINER (container)); g_return_if_fail (context == NULL || GIMP_IS_CONTEXT (context)); g_return_if_fail (preview_size > 0 && preview_size <= GIMP_VIEWABLE_MAX_PREVIEW_SIZE); g_return_if_fail (preview_border_width >= 0 && preview_border_width <= GIMP_PREVIEW_MAX_BORDER_WIDTH); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); private->reorderable = reorderable ? TRUE : FALSE; gimp_container_view_set_preview_size (view, preview_size, preview_border_width); if (container) gimp_container_view_set_container (view, container); if (context) gimp_container_view_set_context (view, context); } GimpContainer * gimp_container_view_get_container (GimpContainerView *view) { GimpContainerViewPrivate *private; g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), NULL); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); return private->container; } void gimp_container_view_set_container (GimpContainerView *view, GimpContainer *container) { GimpContainerViewPrivate *private; g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); g_return_if_fail (container == NULL || GIMP_IS_CONTAINER (container)); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); if (container != private->container) { GIMP_CONTAINER_VIEW_GET_CLASS (view)->set_container (view, container); g_object_notify (G_OBJECT (view), "container"); } } static void gimp_container_view_real_set_container (GimpContainerView *view, GimpContainer *container) { GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); if (private->container) { GimpContainerViewClass *view_class; gimp_container_view_select_item (view, NULL); gimp_container_view_clear_items (view); gimp_container_remove_handler (private->container, private->name_changed_handler_id); g_signal_handlers_disconnect_by_func (private->container, gimp_container_view_add, view); g_signal_handlers_disconnect_by_func (private->container, gimp_container_view_remove, view); g_signal_handlers_disconnect_by_func (private->container, gimp_container_view_reorder, view); g_signal_handlers_disconnect_by_func (private->container, gimp_container_view_freeze, view); g_signal_handlers_disconnect_by_func (private->container, gimp_container_view_thaw, view); g_hash_table_destroy (private->hash_table); view_class = GIMP_CONTAINER_VIEW_GET_CLASS (view); private->hash_table = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, view_class->insert_data_free); if (private->context) { g_signal_handlers_disconnect_by_func (private->context, gimp_container_view_context_changed, view); if (private->dnd_widget) { gtk_drag_dest_unset (private->dnd_widget); gimp_dnd_viewable_dest_remove (private->dnd_widget, private->container->children_type); } } } private->container = container; if (private->container) { GimpViewableClass *viewable_class; viewable_class = g_type_class_ref (container->children_type); gimp_container_foreach (private->container, (GFunc) gimp_container_view_add_foreach, view); private->name_changed_handler_id = gimp_container_add_handler (private->container, viewable_class->name_changed_signal, G_CALLBACK (gimp_container_view_name_changed), view); g_type_class_unref (viewable_class); g_signal_connect_object (private->container, "add", G_CALLBACK (gimp_container_view_add), view, G_CONNECT_SWAPPED); g_signal_connect_object (private->container, "remove", G_CALLBACK (gimp_container_view_remove), view, G_CONNECT_SWAPPED); g_signal_connect_object (private->container, "reorder", G_CALLBACK (gimp_container_view_reorder), view, G_CONNECT_SWAPPED); g_signal_connect_object (private->container, "freeze", G_CALLBACK (gimp_container_view_freeze), view, G_CONNECT_SWAPPED); g_signal_connect_object (private->container, "thaw", G_CALLBACK (gimp_container_view_thaw), view, G_CONNECT_SWAPPED); if (private->context) { GimpObject *object; const gchar *signal_name; signal_name = gimp_context_type_to_signal_name (private->container->children_type); g_signal_connect_object (private->context, signal_name, G_CALLBACK (gimp_container_view_context_changed), view, 0); object = gimp_context_get_by_type (private->context, private->container->children_type); gimp_container_view_select_item (view, (GimpViewable *) object); if (private->dnd_widget) gimp_dnd_viewable_dest_add (private->dnd_widget, private->container->children_type, gimp_container_view_viewable_dropped, view); } } } GimpContext * gimp_container_view_get_context (GimpContainerView *view) { GimpContainerViewPrivate *private; g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), NULL); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); return private->context; } void gimp_container_view_set_context (GimpContainerView *view, GimpContext *context) { GimpContainerViewPrivate *private; g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); g_return_if_fail (! context || GIMP_IS_CONTEXT (context)); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); if (context == private->context) return; if (private->context) { if (private->container) { g_signal_handlers_disconnect_by_func (private->context, gimp_container_view_context_changed, view); if (private->dnd_widget) { gtk_drag_dest_unset (private->dnd_widget); gimp_dnd_viewable_dest_remove (private->dnd_widget, private->container->children_type); } } g_object_unref (private->context); } private->context = context; if (private->context) { g_object_ref (private->context); if (private->container) { GimpObject *object; const gchar *signal_name; signal_name = gimp_context_type_to_signal_name (private->container->children_type); g_signal_connect_object (private->context, signal_name, G_CALLBACK (gimp_container_view_context_changed), view, 0); object = gimp_context_get_by_type (private->context, private->container->children_type); gimp_container_view_select_item (view, (GimpViewable *) object); if (private->dnd_widget) gimp_dnd_viewable_dest_add (private->dnd_widget, private->container->children_type, gimp_container_view_viewable_dropped, view); } } g_object_notify (G_OBJECT (view), "context"); } gint gimp_container_view_get_preview_size (GimpContainerView *view, gint *preview_border_width) { GimpContainerViewPrivate *private; g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), 0); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); if (preview_border_width) *preview_border_width = private->preview_border_width; return private->preview_size; } void gimp_container_view_set_preview_size (GimpContainerView *view, gint preview_size, gint preview_border_width) { GimpContainerViewPrivate *private; g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); g_return_if_fail (preview_size > 0 && preview_size <= GIMP_VIEWABLE_MAX_PREVIEW_SIZE); g_return_if_fail (preview_border_width >= 0 && preview_border_width <= GIMP_PREVIEW_MAX_BORDER_WIDTH); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); if (private->preview_size != preview_size || private->preview_border_width != preview_border_width) { private->preview_size = preview_size; private->preview_border_width = preview_border_width; GIMP_CONTAINER_VIEW_GET_CLASS (view)->set_preview_size (view); } } void gimp_container_view_enable_dnd (GimpContainerView *view, GtkButton *button, GType children_type) { g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); g_return_if_fail (GTK_IS_BUTTON (button)); gimp_dnd_viewable_dest_add (GTK_WIDGET (button), children_type, gimp_container_view_button_viewable_dropped, view); } gboolean gimp_container_view_select_item (GimpContainerView *view, GimpViewable *viewable) { GimpContainerViewPrivate *private; gboolean success = FALSE; g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), FALSE); g_return_val_if_fail (viewable == NULL || GIMP_IS_VIEWABLE (viewable), FALSE); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); if (private->hash_table) { gpointer insert_data; insert_data = g_hash_table_lookup (private->hash_table, viewable); g_signal_emit (view, view_signals[SELECT_ITEM], 0, viewable, insert_data, &success); } return success; } void gimp_container_view_activate_item (GimpContainerView *view, GimpViewable *viewable) { GimpContainerViewPrivate *private; g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); g_return_if_fail (GIMP_IS_VIEWABLE (viewable)); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); if (private->hash_table) { gpointer insert_data; insert_data = g_hash_table_lookup (private->hash_table, viewable); g_signal_emit (view, view_signals[ACTIVATE_ITEM], 0, viewable, insert_data); } } void gimp_container_view_context_item (GimpContainerView *view, GimpViewable *viewable) { GimpContainerViewPrivate *private; g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); g_return_if_fail (GIMP_IS_VIEWABLE (viewable)); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); if (private->hash_table) { gpointer insert_data; insert_data = g_hash_table_lookup (private->hash_table, viewable); g_signal_emit (view, view_signals[CONTEXT_ITEM], 0, viewable, insert_data); } } gboolean gimp_container_view_item_selected (GimpContainerView *view, GimpViewable *viewable) { GimpContainerViewPrivate *private; gboolean success; g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), FALSE); g_return_val_if_fail (GIMP_IS_VIEWABLE (viewable), FALSE); private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); success = gimp_container_view_select_item (view, viewable); if (success && private->container && private->context) { GimpContext *context; /* ref and remember the context because private->context may * become NULL by calling gimp_context_set_by_type() */ context = g_object_ref (private->context); g_signal_handlers_block_by_func (context, gimp_container_view_context_changed, view); gimp_context_set_by_type (context, private->container->children_type, GIMP_OBJECT (viewable)); g_signal_handlers_unblock_by_func (context, gimp_container_view_context_changed, view); g_object_unref (context); } return success; } void gimp_container_view_item_activated (GimpContainerView *view, GimpViewable *viewable) { g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); g_return_if_fail (GIMP_IS_VIEWABLE (viewable)); gimp_container_view_activate_item (view, viewable); } void gimp_container_view_item_context (GimpContainerView *view, GimpViewable *viewable) { g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); g_return_if_fail (GIMP_IS_VIEWABLE (viewable)); gimp_container_view_context_item (view, viewable); } static void gimp_container_view_clear_items (GimpContainerView *view) { GIMP_CONTAINER_VIEW_GET_CLASS (view)->clear_items (view); } static void gimp_container_view_real_clear_items (GimpContainerView *view) { GimpContainerViewClass *view_class = GIMP_CONTAINER_VIEW_GET_CLASS (view); GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); g_hash_table_destroy (private->hash_table); private->hash_table = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, view_class->insert_data_free); } static void gimp_container_view_add_foreach (GimpViewable *viewable, GimpContainerView *view) { GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); gpointer insert_data; insert_data = GIMP_CONTAINER_VIEW_GET_CLASS (view)->insert_item (view, viewable, -1); g_hash_table_insert (private->hash_table, viewable, insert_data); } static void gimp_container_view_add (GimpContainerView *view, GimpViewable *viewable, GimpContainer *container) { GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); gpointer insert_data; gint index; if (gimp_container_frozen (container)) return; index = gimp_container_get_child_index (container, GIMP_OBJECT (viewable)); insert_data = GIMP_CONTAINER_VIEW_GET_CLASS (view)->insert_item (view, viewable, index); g_hash_table_insert (private->hash_table, viewable, insert_data); } static void gimp_container_view_remove (GimpContainerView *view, GimpViewable *viewable, GimpContainer *container) { GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); gpointer insert_data; if (gimp_container_frozen (container)) return; insert_data = g_hash_table_lookup (private->hash_table, viewable); if (insert_data) { GIMP_CONTAINER_VIEW_GET_CLASS (view)->remove_item (view, viewable, insert_data); g_hash_table_remove (private->hash_table, viewable); } } static void gimp_container_view_reorder (GimpContainerView *view, GimpViewable *viewable, gint new_index, GimpContainer *container) { GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); gpointer insert_data; if (gimp_container_frozen (container)) return; insert_data = g_hash_table_lookup (private->hash_table, viewable); if (insert_data) { GIMP_CONTAINER_VIEW_GET_CLASS (view)->reorder_item (view, viewable, new_index, insert_data); } } static void gimp_container_view_freeze (GimpContainerView *view, GimpContainer *container) { gimp_container_view_clear_items (view); } static void gimp_container_view_thaw (GimpContainerView *view, GimpContainer *container) { GimpContext *context = gimp_container_view_get_context (view); gimp_container_foreach (container, (GFunc) gimp_container_view_add_foreach, view); if (context) { GimpObject *object; object = gimp_context_get_by_type (context, container->children_type); gimp_container_view_select_item (view, (GimpViewable *) object); } } static void gimp_container_view_name_changed (GimpViewable *viewable, GimpContainerView *view) { GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); gpointer insert_data; insert_data = g_hash_table_lookup (private->hash_table, viewable); if (insert_data) { GIMP_CONTAINER_VIEW_GET_CLASS (view)->rename_item (view, viewable, insert_data); } } static void gimp_container_view_context_changed (GimpContext *context, GimpViewable *viewable, GimpContainerView *view) { GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); gpointer insert_data; gboolean success = FALSE; insert_data = g_hash_table_lookup (private->hash_table, viewable); g_signal_emit (view, view_signals[SELECT_ITEM], 0, viewable, insert_data, &success); if (! success) g_warning ("gimp_container_view_context_changed(): select_item() failed " "(should not happen)"); } static void gimp_container_view_viewable_dropped (GtkWidget *widget, GimpViewable *viewable, gpointer data) { GimpContainerView *view = GIMP_CONTAINER_VIEW (data); GimpContainer *container = gimp_container_view_get_container (view); GimpContext *context = gimp_container_view_get_context (view); gimp_context_set_by_type (context, container->children_type, GIMP_OBJECT (viewable)); } static void gimp_container_view_button_viewable_dropped (GtkWidget *widget, GimpViewable *viewable, gpointer data) { GimpContainerView *view = GIMP_CONTAINER_VIEW (data); GimpContainer *container = gimp_container_view_get_container (view); if (viewable && gimp_container_have (container, GIMP_OBJECT (viewable))) { gimp_container_view_item_selected (view, viewable); gtk_button_clicked (GTK_BUTTON (widget)); } }