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Diffstat (limited to '')
| -rw-r--r-- | app/widgets/gimpcontainerview.c | 1331 |
1 files changed, 1331 insertions, 0 deletions
diff --git a/app/widgets/gimpcontainerview.c b/app/widgets/gimpcontainerview.c new file mode 100644 index 0000000..0a9d4ea --- /dev/null +++ b/app/widgets/gimpcontainerview.c @@ -0,0 +1,1331 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * gimpcontainerview.c + * Copyright (C) 2001-2010 Michael Natterer <mitch@gimp.org> + * + * 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 3 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, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <string.h> + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpwidgets/gimpwidgets.h" + +#include "widgets-types.h" + +#include "core/gimpcontainer.h" +#include "core/gimpcontext.h" +#include "core/gimpmarshal.h" +#include "core/gimptreehandler.h" +#include "core/gimpviewable.h" + +#include "gimpcontainerview.h" +#include "gimpdnd.h" +#include "gimpviewrenderer.h" +#include "gimpuimanager.h" +#include "gimpcontainertreeview.h" + + +enum +{ + SELECT_ITEM, + ACTIVATE_ITEM, + CONTEXT_ITEM, + LAST_SIGNAL +}; + + +#define GIMP_CONTAINER_VIEW_GET_PRIVATE(obj) (gimp_container_view_get_private ((GimpContainerView *) (obj))) + + +typedef struct _GimpContainerViewPrivate GimpContainerViewPrivate; + +struct _GimpContainerViewPrivate +{ + GimpContainer *container; + GimpContext *context; + + GHashTable *item_hash; + + gint view_size; + gint view_border_width; + gboolean reorderable; + GtkSelectionMode selection_mode; + + /* initialized by subclass */ + GtkWidget *dnd_widget; + + GimpTreeHandler *name_changed_handler; + GimpTreeHandler *expanded_changed_handler; +}; + + +/* local function prototypes */ + +static GimpContainerViewPrivate * + gimp_container_view_get_private (GimpContainerView *view); + +static void gimp_container_view_real_set_container (GimpContainerView *view, + GimpContainer *container); +static void gimp_container_view_real_set_context (GimpContainerView *view, + GimpContext *context); +static void gimp_container_view_real_set_selection_mode (GimpContainerView *view, + GtkSelectionMode mode); + +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_container (GimpContainerView *view, + GimpContainer *container); +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_container (GimpContainerView *view, + GimpContainer *container); +static void gimp_container_view_remove_foreach (GimpViewable *viewable, + GimpContainerView *view); +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_expanded_changed (GimpViewable *viewable, + GimpContainerView *view); + +static void gimp_container_view_connect_context (GimpContainerView *view); +static void gimp_container_view_disconnect_context (GimpContainerView *view); + +static void gimp_container_view_context_changed (GimpContext *context, + GimpViewable *viewable, + GimpContainerView *view); +static void gimp_container_view_viewable_dropped (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data); +static void gimp_container_view_button_viewable_dropped (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data); +static gint gimp_container_view_real_get_selected (GimpContainerView *view, + GList **list); + + +G_DEFINE_INTERFACE (GimpContainerView, gimp_container_view, GTK_TYPE_WIDGET) + + +static guint view_signals[LAST_SIGNAL] = { 0 }; + + +static void +gimp_container_view_default_init (GimpContainerViewInterface *iface) +{ + view_signals[SELECT_ITEM] = + g_signal_new ("select-item", + G_TYPE_FROM_INTERFACE (iface), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (GimpContainerViewInterface, 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_INTERFACE (iface), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (GimpContainerViewInterface, 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_INTERFACE (iface), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (GimpContainerViewInterface, context_item), + NULL, NULL, + gimp_marshal_VOID__OBJECT_POINTER, + G_TYPE_NONE, 2, + GIMP_TYPE_OBJECT, + G_TYPE_POINTER); + + iface->select_item = NULL; + iface->activate_item = NULL; + iface->context_item = NULL; + + iface->set_container = gimp_container_view_real_set_container; + iface->set_context = gimp_container_view_real_set_context; + iface->set_selection_mode = gimp_container_view_real_set_selection_mode; + iface->insert_item = NULL; + iface->insert_item_after = NULL; + iface->remove_item = NULL; + iface->reorder_item = NULL; + iface->rename_item = NULL; + iface->expand_item = NULL; + iface->clear_items = gimp_container_view_real_clear_items; + iface->set_view_size = NULL; + iface->get_selected = gimp_container_view_real_get_selected; + + iface->insert_data_free = NULL; + iface->model_is_tree = FALSE; + + g_object_interface_install_property (iface, + g_param_spec_object ("container", + NULL, NULL, + GIMP_TYPE_CONTAINER, + GIMP_PARAM_READWRITE)); + + g_object_interface_install_property (iface, + g_param_spec_object ("context", + NULL, NULL, + GIMP_TYPE_CONTEXT, + GIMP_PARAM_READWRITE)); + + g_object_interface_install_property (iface, + g_param_spec_enum ("selection-mode", + NULL, NULL, + GTK_TYPE_SELECTION_MODE, + GTK_SELECTION_SINGLE, + GIMP_PARAM_READWRITE)); + + g_object_interface_install_property (iface, + g_param_spec_boolean ("reorderable", + NULL, NULL, + FALSE, + GIMP_PARAM_READWRITE)); + + g_object_interface_install_property (iface, + g_param_spec_int ("view-size", + NULL, NULL, + 1, GIMP_VIEWABLE_MAX_PREVIEW_SIZE, + GIMP_VIEW_SIZE_MEDIUM, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); + + g_object_interface_install_property (iface, + g_param_spec_int ("view-border-width", + NULL, NULL, + 0, + GIMP_VIEW_MAX_BORDER_WIDTH, + 1, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); +} + +static void +gimp_container_view_private_dispose (GimpContainerView *view, + GimpContainerViewPrivate *private) +{ + if (private->container) + gimp_container_view_set_container (view, NULL); + + if (private->context) + gimp_container_view_set_context (view, NULL); +} + +static void +gimp_container_view_private_finalize (GimpContainerViewPrivate *private) +{ + if (private->item_hash) + { + g_hash_table_destroy (private->item_hash); + private->item_hash = NULL; + } + g_clear_pointer (&private->name_changed_handler, + gimp_tree_handler_disconnect); + g_clear_pointer (&private->expanded_changed_handler, + gimp_tree_handler_disconnect); + + g_slice_free (GimpContainerViewPrivate, private); +} + +static GimpContainerViewPrivate * +gimp_container_view_get_private (GimpContainerView *view) +{ + GimpContainerViewPrivate *private; + + static GQuark private_key = 0; + + g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), NULL); + + if (! private_key) + private_key = g_quark_from_static_string ("gimp-container-view-private"); + + private = g_object_get_qdata ((GObject *) view, private_key); + + if (! private) + { + GimpContainerViewInterface *view_iface; + + view_iface = GIMP_CONTAINER_VIEW_GET_INTERFACE (view); + + private = g_slice_new0 (GimpContainerViewPrivate); + + private->view_border_width = 1; + + private->item_hash = g_hash_table_new_full (g_direct_hash, + g_direct_equal, + NULL, + view_iface->insert_data_free); + + g_object_set_qdata_full ((GObject *) view, private_key, private, + (GDestroyNotify) gimp_container_view_private_finalize); + + g_signal_connect (view, "destroy", + G_CALLBACK (gimp_container_view_private_dispose), + private); + } + + return private; +} + +/** + * gimp_container_view_install_properties: + * @klass: the class structure for a type deriving from #GObject + * + * Installs the necessary properties for a class implementing + * #GimpContainerView. A #GimpContainerViewProp property is installed + * for each property, using the values from the #GimpContainerViewProp + * enumeration. The caller must make sure itself that the enumeration + * values don't collide with some other property values they + * are using (that's what %GIMP_CONTAINER_VIEW_PROP_LAST is good for). + **/ +void +gimp_container_view_install_properties (GObjectClass *klass) +{ + g_object_class_override_property (klass, + GIMP_CONTAINER_VIEW_PROP_CONTAINER, + "container"); + g_object_class_override_property (klass, + GIMP_CONTAINER_VIEW_PROP_CONTEXT, + "context"); + g_object_class_override_property (klass, + GIMP_CONTAINER_VIEW_PROP_SELECTION_MODE, + "selection-mode"); + g_object_class_override_property (klass, + GIMP_CONTAINER_VIEW_PROP_REORDERABLE, + "reorderable"); + g_object_class_override_property (klass, + GIMP_CONTAINER_VIEW_PROP_VIEW_SIZE, + "view-size"); + g_object_class_override_property (klass, + GIMP_CONTAINER_VIEW_PROP_VIEW_BORDER_WIDTH, + "view-border-width"); +} + +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)); + if (container) + g_return_if_fail (g_type_is_a (gimp_container_get_children_type (container), + GIMP_TYPE_VIEWABLE)); + + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + if (container != private->container) + { + GIMP_CONTAINER_VIEW_GET_INTERFACE (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) + { + if (private->context) + gimp_container_view_disconnect_context (view); + + gimp_container_view_select_item (view, NULL); + + /* freeze/thaw is only supported for the toplevel container */ + 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); + + if (! gimp_container_frozen (private->container)) + gimp_container_view_remove_container (view, private->container); + } + + private->container = container; + + if (private->container) + { + if (! gimp_container_frozen (private->container)) + gimp_container_view_add_container (view, private->container); + + /* freeze/thaw is only supported for the toplevel container */ + 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) + gimp_container_view_connect_context (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 == NULL || GIMP_IS_CONTEXT (context)); + + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + if (context != private->context) + { + GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->set_context (view, context); + + g_object_notify (G_OBJECT (view), "context"); + } +} + +static void +gimp_container_view_real_set_context (GimpContainerView *view, + GimpContext *context) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + if (private->context && + private->container) + { + gimp_container_view_disconnect_context (view); + } + + g_set_object (&private->context, context); + + if (private->context && + private->container) + { + gimp_container_view_connect_context (view); + } +} + +GtkSelectionMode +gimp_container_view_get_selection_mode (GimpContainerView *view) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + return private->selection_mode; +} + +void +gimp_container_view_set_selection_mode (GimpContainerView *view, + GtkSelectionMode mode) +{ + g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); + g_return_if_fail (mode == GTK_SELECTION_SINGLE || + mode == GTK_SELECTION_MULTIPLE); + + GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->set_selection_mode (view, mode); +} + +static void +gimp_container_view_real_set_selection_mode (GimpContainerView *view, + GtkSelectionMode mode) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + private->selection_mode = mode; +} + +gint +gimp_container_view_get_view_size (GimpContainerView *view, + gint *view_border_width) +{ + GimpContainerViewPrivate *private; + + g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), 0); + + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + if (view_border_width) + *view_border_width = private->view_border_width; + + return private->view_size; +} + +void +gimp_container_view_set_view_size (GimpContainerView *view, + gint view_size, + gint view_border_width) +{ + GimpContainerViewPrivate *private; + + g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); + g_return_if_fail (view_size > 0 && + view_size <= GIMP_VIEWABLE_MAX_PREVIEW_SIZE); + g_return_if_fail (view_border_width >= 0 && + view_border_width <= GIMP_VIEW_MAX_BORDER_WIDTH); + + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + if (private->view_size != view_size || + private->view_border_width != view_border_width) + { + private->view_size = view_size; + private->view_border_width = view_border_width; + + GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->set_view_size (view); + + g_object_freeze_notify (G_OBJECT (view)); + g_object_notify (G_OBJECT (view), "view-size"); + g_object_notify (G_OBJECT (view), "view-border-width"); + g_object_thaw_notify (G_OBJECT (view)); + } +} + +gboolean +gimp_container_view_get_reorderable (GimpContainerView *view) +{ + GimpContainerViewPrivate *private; + + g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), FALSE); + + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + return private->reorderable; +} + +void +gimp_container_view_set_reorderable (GimpContainerView *view, + gboolean reorderable) +{ + GimpContainerViewPrivate *private; + + g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); + + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + private->reorderable = reorderable ? TRUE : FALSE; + g_object_notify (G_OBJECT (view), "reorderable"); +} + +GtkWidget * +gimp_container_view_get_dnd_widget (GimpContainerView *view) +{ + GimpContainerViewPrivate *private; + + g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), NULL); + + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + return private->dnd_widget; +} + +void +gimp_container_view_set_dnd_widget (GimpContainerView *view, + GtkWidget *dnd_widget) +{ + GimpContainerViewPrivate *private; + + g_return_if_fail (GIMP_IS_CONTAINER_VIEW (view)); + g_return_if_fail (dnd_widget == NULL || GTK_IS_WIDGET (dnd_widget)); + + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + private->dnd_widget = dnd_widget; +} + +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; + gpointer insert_data; + + 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 (gimp_container_frozen (private->container)) + return TRUE; + + insert_data = g_hash_table_lookup (private->item_hash, 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; + gpointer insert_data; + + 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 (gimp_container_frozen (private->container)) + return; + + insert_data = g_hash_table_lookup (private->item_hash, 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; + gpointer insert_data; + + 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 (gimp_container_frozen (private->container)) + return; + + insert_data = g_hash_table_lookup (private->item_hash, viewable); + + g_signal_emit (view, view_signals[CONTEXT_ITEM], 0, + viewable, insert_data); +} + +gpointer +gimp_container_view_lookup (GimpContainerView *view, + GimpViewable *viewable) +{ + GimpContainerViewPrivate *private; + + g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), NULL); + g_return_val_if_fail (viewable == NULL || GIMP_IS_VIEWABLE (viewable), NULL); + + /* we handle the NULL viewable here as a workaround for bug #149906 */ + if (! viewable) + return NULL; + + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + return g_hash_table_lookup (private->item_hash, viewable); +} + +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); + + /* HACK */ + if (private->container && private->context) + { + GType children_type; + const gchar *signal_name; + + children_type = gimp_container_get_children_type (private->container); + signal_name = gimp_context_type_to_signal_name (children_type); + + if (signal_name) + { + gimp_context_set_by_type (private->context, children_type, + GIMP_OBJECT (viewable)); + return TRUE; + } + } + + success = gimp_container_view_select_item (view, viewable); + +#if 0 + if (success && private->container && private->context) + { + GimpContext *context; + GType children_type; + + /* ref and remember the context because private->context may + * become NULL by calling gimp_context_set_by_type() + */ + context = g_object_ref (private->context); + children_type = gimp_container_get_children_type (private->container); + + g_signal_handlers_block_by_func (context, + gimp_container_view_context_changed, + view); + + gimp_context_set_by_type (context, children_type, GIMP_OBJECT (viewable)); + + g_signal_handlers_unblock_by_func (context, + gimp_container_view_context_changed, + view); + + g_object_unref (context); + } +#endif + + return success; +} + +gboolean +gimp_container_view_multi_selected (GimpContainerView *view, + GList *items) +{ + guint selected_count; + gboolean success = FALSE; + + g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), FALSE); + + selected_count = g_list_length (items); + + if (selected_count == 0) + { + /* do nothing */ + } + else if (selected_count == 1) + { + success = gimp_container_view_item_selected (view, items->data); + } + else + { + success = FALSE; + g_signal_emit (view, view_signals[SELECT_ITEM], 0, + NULL, items, &success); + } + + return success; +} + +gint +gimp_container_view_get_selected (GimpContainerView *view, + GList **list) +{ + g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), 0); + + return GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->get_selected (view, list); +} + +static gint +gimp_container_view_real_get_selected (GimpContainerView *view, + GList **list) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + GType children_type; + GimpObject *object; + + if (list) + *list = NULL; + + if (! private->container || ! private->context) + return 0; + + children_type = gimp_container_get_children_type (private->container); + object = gimp_context_get_by_type (private->context, + children_type); + + if (list && object) + *list = g_list_append (*list, object); + + return object ? 1 : 0; +} + +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); +} + +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 GIMP_CONTAINER_VIEW_PROP_CONTAINER: + gimp_container_view_set_container (view, g_value_get_object (value)); + break; + case GIMP_CONTAINER_VIEW_PROP_CONTEXT: + gimp_container_view_set_context (view, g_value_get_object (value)); + break; + case GIMP_CONTAINER_VIEW_PROP_SELECTION_MODE: + gimp_container_view_set_selection_mode (view, g_value_get_enum (value)); + break; + case GIMP_CONTAINER_VIEW_PROP_REORDERABLE: + gimp_container_view_set_reorderable (view, g_value_get_boolean (value)); + break; + case GIMP_CONTAINER_VIEW_PROP_VIEW_SIZE: + case GIMP_CONTAINER_VIEW_PROP_VIEW_BORDER_WIDTH: + { + gint size, border; + + size = gimp_container_view_get_view_size (view, &border); + + if (property_id == GIMP_CONTAINER_VIEW_PROP_VIEW_SIZE) + size = g_value_get_int (value); + else + border = g_value_get_int (value); + + gimp_container_view_set_view_size (view, size, border); + } + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +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 GIMP_CONTAINER_VIEW_PROP_CONTAINER: + g_value_set_object (value, gimp_container_view_get_container (view)); + break; + case GIMP_CONTAINER_VIEW_PROP_CONTEXT: + g_value_set_object (value, gimp_container_view_get_context (view)); + break; + case GIMP_CONTAINER_VIEW_PROP_SELECTION_MODE: + g_value_set_enum (value, gimp_container_view_get_selection_mode (view)); + break; + case GIMP_CONTAINER_VIEW_PROP_REORDERABLE: + g_value_set_boolean (value, gimp_container_view_get_reorderable (view)); + break; + case GIMP_CONTAINER_VIEW_PROP_VIEW_SIZE: + case GIMP_CONTAINER_VIEW_PROP_VIEW_BORDER_WIDTH: + { + gint size, border; + + size = gimp_container_view_get_view_size (view, &border); + + if (property_id == GIMP_CONTAINER_VIEW_PROP_VIEW_SIZE) + g_value_set_int (value, size); + else + g_value_set_int (value, border); + } + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_container_view_clear_items (GimpContainerView *view) +{ + GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->clear_items (view); +} + +static void +gimp_container_view_real_clear_items (GimpContainerView *view) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + g_hash_table_remove_all (private->item_hash); +} + +static void +gimp_container_view_add_container (GimpContainerView *view, + GimpContainer *container) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + gimp_container_foreach (container, + (GFunc) gimp_container_view_add_foreach, + view); + + if (container == private->container) + { + GType children_type; + GimpViewableClass *viewable_class; + + children_type = gimp_container_get_children_type (container); + viewable_class = g_type_class_ref (children_type); + + private->name_changed_handler = + gimp_tree_handler_connect (container, + viewable_class->name_changed_signal, + G_CALLBACK (gimp_container_view_name_changed), + view); + + if (GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->expand_item) + { + private->expanded_changed_handler = + gimp_tree_handler_connect (container, + "expanded-changed", + G_CALLBACK (gimp_container_view_expanded_changed), + view); + } + + g_type_class_unref (viewable_class); + } + + g_signal_connect_object (container, "add", + G_CALLBACK (gimp_container_view_add), + view, + G_CONNECT_SWAPPED); + g_signal_connect_object (container, "remove", + G_CALLBACK (gimp_container_view_remove), + view, + G_CONNECT_SWAPPED); + g_signal_connect_object (container, "reorder", + G_CALLBACK (gimp_container_view_reorder), + view, + G_CONNECT_SWAPPED); +} + +static void +gimp_container_view_add_foreach (GimpViewable *viewable, + GimpContainerView *view) +{ + GimpContainerViewInterface *view_iface; + GimpContainerViewPrivate *private; + GimpViewable *parent; + GimpContainer *children; + gpointer parent_insert_data = NULL; + gpointer insert_data; + + view_iface = GIMP_CONTAINER_VIEW_GET_INTERFACE (view); + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + parent = gimp_viewable_get_parent (viewable); + + if (parent) + parent_insert_data = g_hash_table_lookup (private->item_hash, parent); + + insert_data = view_iface->insert_item (view, viewable, + parent_insert_data, -1); + + g_hash_table_insert (private->item_hash, viewable, insert_data); + + if (view_iface->insert_item_after) + view_iface->insert_item_after (view, viewable, insert_data); + + children = gimp_viewable_get_children (viewable); + + if (children) + gimp_container_view_add_container (view, children); +} + +static void +gimp_container_view_add (GimpContainerView *view, + GimpViewable *viewable, + GimpContainer *container) +{ + GimpContainerViewInterface *view_iface; + GimpContainerViewPrivate *private; + GimpViewable *parent; + GimpContainer *children; + gpointer parent_insert_data = NULL; + gpointer insert_data; + gint index; + + view_iface = GIMP_CONTAINER_VIEW_GET_INTERFACE (view); + private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + index = gimp_container_get_child_index (container, + GIMP_OBJECT (viewable)); + + parent = gimp_viewable_get_parent (viewable); + + if (parent) + parent_insert_data = g_hash_table_lookup (private->item_hash, parent); + + insert_data = view_iface->insert_item (view, viewable, + parent_insert_data, index); + + g_hash_table_insert (private->item_hash, viewable, insert_data); + + if (view_iface->insert_item_after) + view_iface->insert_item_after (view, viewable, insert_data); + + children = gimp_viewable_get_children (viewable); + + if (children) + gimp_container_view_add_container (view, children); +} + +static void +gimp_container_view_remove_container (GimpContainerView *view, + GimpContainer *container) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + g_object_ref (container); + + g_signal_handlers_disconnect_by_func (container, + gimp_container_view_add, + view); + g_signal_handlers_disconnect_by_func (container, + gimp_container_view_remove, + view); + g_signal_handlers_disconnect_by_func (container, + gimp_container_view_reorder, + view); + + if (container == private->container) + { + g_clear_pointer (&private->name_changed_handler, + gimp_tree_handler_disconnect); + g_clear_pointer (&private->expanded_changed_handler, + gimp_tree_handler_disconnect); + + /* optimization: when the toplevel container gets removed, call + * clear_items() which will get rid of all view widget stuff + * *and* empty private->item_hash, so below call to + * remove_foreach() will only disconnect all containers but not + * remove all items individually (because they are gone from + * item_hash). + */ + gimp_container_view_clear_items (view); + } + + gimp_container_foreach (container, + (GFunc) gimp_container_view_remove_foreach, + view); + + g_object_unref (container); +} + +static void +gimp_container_view_remove_foreach (GimpViewable *viewable, + GimpContainerView *view) +{ + gimp_container_view_remove (view, viewable, NULL); +} + +static void +gimp_container_view_remove (GimpContainerView *view, + GimpViewable *viewable, + GimpContainer *unused) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + GimpContainer *children; + gpointer insert_data; + + children = gimp_viewable_get_children (viewable); + + if (children) + gimp_container_view_remove_container (view, children); + + insert_data = g_hash_table_lookup (private->item_hash, viewable); + + if (insert_data) + { + GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->remove_item (view, + viewable, + insert_data); + + g_hash_table_remove (private->item_hash, 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; + + insert_data = g_hash_table_lookup (private->item_hash, viewable); + + if (insert_data) + { + GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->reorder_item (view, + viewable, + new_index, + insert_data); + } +} + +static void +gimp_container_view_freeze (GimpContainerView *view, + GimpContainer *container) +{ + gimp_container_view_remove_container (view, container); +} + +static void +gimp_container_view_thaw (GimpContainerView *view, + GimpContainer *container) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + gimp_container_view_add_container (view, container); + + if (private->context) + { + GType children_type; + const gchar *signal_name; + + children_type = gimp_container_get_children_type (private->container); + signal_name = gimp_context_type_to_signal_name (children_type); + + if (signal_name) + { + GimpObject *object; + + object = gimp_context_get_by_type (private->context, children_type); + + gimp_container_view_select_item (view, GIMP_VIEWABLE (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->item_hash, viewable); + + if (insert_data) + { + GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->rename_item (view, + viewable, + insert_data); + } +} + +static void +gimp_container_view_expanded_changed (GimpViewable *viewable, + GimpContainerView *view) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + gpointer insert_data; + + insert_data = g_hash_table_lookup (private->item_hash, viewable); + + if (insert_data) + { + GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->expand_item (view, + viewable, + insert_data); + } +} + +static void +gimp_container_view_connect_context (GimpContainerView *view) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + GType children_type; + const gchar *signal_name; + + children_type = gimp_container_get_children_type (private->container); + signal_name = gimp_context_type_to_signal_name (children_type); + + if (signal_name) + { + g_signal_connect_object (private->context, signal_name, + G_CALLBACK (gimp_container_view_context_changed), + view, + 0); + + if (private->dnd_widget) + gimp_dnd_viewable_dest_add (private->dnd_widget, + children_type, + gimp_container_view_viewable_dropped, + view); + + if (! gimp_container_frozen (private->container)) + { + GimpObject *object = gimp_context_get_by_type (private->context, + children_type); + + gimp_container_view_select_item (view, GIMP_VIEWABLE (object)); + } + } +} + +static void +gimp_container_view_disconnect_context (GimpContainerView *view) +{ + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + GType children_type; + const gchar *signal_name; + + children_type = gimp_container_get_children_type (private->container); + signal_name = gimp_context_type_to_signal_name (children_type); + + if (signal_name) + { + 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, + children_type); + } + } +} + +static void +gimp_container_view_context_changed (GimpContext *context, + GimpViewable *viewable, + GimpContainerView *view) +{ + if (! gimp_container_view_select_item (view, viewable)) + g_warning ("%s: select_item() failed (should not happen)", G_STRFUNC); +} + +static void +gimp_container_view_viewable_dropped (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data) +{ + GimpContainerView *view = GIMP_CONTAINER_VIEW (data); + GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view); + + if (viewable && private->container && + gimp_container_have (private->container, GIMP_OBJECT (viewable))) + { + gimp_container_view_item_selected (view, viewable); + } +} + +static void +gimp_container_view_button_viewable_dropped (GtkWidget *widget, + gint x, + gint y, + GimpViewable *viewable, + gpointer data) +{ + GimpContainerView *view = GIMP_CONTAINER_VIEW (data); + + if (viewable && gimp_container_view_lookup (view, viewable)) + { + gimp_container_view_item_selected (view, viewable); + + gtk_button_clicked (GTK_BUTTON (widget)); + } +} + |