/* GIMP - The GNU Image Manipulation Program * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * 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 . */ #include "config.h" #include #include #include #include "libgimpbase/gimpbase.h" #include "libgimpmath/gimpmath.h" #include "core-types.h" #include "gimp.h" #include "gimp-parasites.h" #include "gimpchannel.h" #include "gimpidtable.h" #include "gimpimage.h" #include "gimpimage-undo.h" #include "gimpimage-undo-push.h" #include "gimpitem.h" #include "gimpitem-preview.h" #include "gimpitemtree.h" #include "gimplist.h" #include "gimpmarshal.h" #include "gimpparasitelist.h" #include "gimpprogress.h" #include "gimpstrokeoptions.h" #include "gimp-intl.h" enum { REMOVED, VISIBILITY_CHANGED, LINKED_CHANGED, LOCK_CONTENT_CHANGED, LAST_SIGNAL }; enum { PROP_0, PROP_IMAGE, PROP_ID, PROP_WIDTH, PROP_HEIGHT, PROP_OFFSET_X, PROP_OFFSET_Y, PROP_VISIBLE, PROP_LINKED, PROP_LOCK_CONTENT }; typedef struct _GimpItemPrivate GimpItemPrivate; struct _GimpItemPrivate { gint ID; /* provides a unique ID */ guint32 tattoo; /* provides a permanent ID */ GimpImage *image; /* item owner */ GimpParasiteList *parasites; /* Plug-in parasite data */ gint width, height; /* size in pixels */ gint offset_x, offset_y; /* pixel offset in image */ guint visible : 1; /* control visibility */ guint linked : 1; /* control linkage */ guint lock_content : 1; /* content editability */ guint removed : 1; /* removed from the image? */ GeglNode *node; /* the GEGL node to plug into the graph */ GeglNode *offset_node; /* the offset as a node */ }; #define GET_PRIVATE(item) G_TYPE_INSTANCE_GET_PRIVATE (item, \ GIMP_TYPE_ITEM, \ GimpItemPrivate) /* local function prototypes */ static void gimp_item_constructed (GObject *object); static void gimp_item_finalize (GObject *object); static void gimp_item_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec); static void gimp_item_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec); static gint64 gimp_item_get_memsize (GimpObject *object, gint64 *gui_size); static void gimp_item_real_visibility_changed (GimpItem *item); static gboolean gimp_item_real_is_content_locked (const GimpItem *item); static GimpItem * gimp_item_real_duplicate (GimpItem *item, GType new_type); static void gimp_item_real_convert (GimpItem *item, GimpImage *dest_image); static gboolean gimp_item_real_rename (GimpItem *item, const gchar *new_name, const gchar *undo_desc, GError **error); static void gimp_item_real_translate (GimpItem *item, gint offset_x, gint offset_y, gboolean push_undo); static void gimp_item_real_scale (GimpItem *item, gint new_width, gint new_height, gint new_offset_x, gint new_offset_y, GimpInterpolationType interpolation, GimpProgress *progress); static void gimp_item_real_resize (GimpItem *item, GimpContext *context, gint new_width, gint new_height, gint offset_x, gint offset_y); static GeglNode * gimp_item_real_get_node (GimpItem *item); static void gimp_item_sync_offset_node (GimpItem *item); G_DEFINE_TYPE (GimpItem, gimp_item, GIMP_TYPE_VIEWABLE) #define parent_class gimp_item_parent_class static guint gimp_item_signals[LAST_SIGNAL] = { 0 }; static void gimp_item_class_init (GimpItemClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass); GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass); gimp_item_signals[REMOVED] = g_signal_new ("removed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GimpItemClass, removed), NULL, NULL, gimp_marshal_VOID__VOID, G_TYPE_NONE, 0); gimp_item_signals[VISIBILITY_CHANGED] = g_signal_new ("visibility-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GimpItemClass, visibility_changed), NULL, NULL, gimp_marshal_VOID__VOID, G_TYPE_NONE, 0); gimp_item_signals[LINKED_CHANGED] = g_signal_new ("linked-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GimpItemClass, linked_changed), NULL, NULL, gimp_marshal_VOID__VOID, G_TYPE_NONE, 0); gimp_item_signals[LOCK_CONTENT_CHANGED] = g_signal_new ("lock-content-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GimpItemClass, lock_content_changed), NULL, NULL, gimp_marshal_VOID__VOID, G_TYPE_NONE, 0); object_class->constructed = gimp_item_constructed; object_class->finalize = gimp_item_finalize; object_class->set_property = gimp_item_set_property; object_class->get_property = gimp_item_get_property; gimp_object_class->get_memsize = gimp_item_get_memsize; viewable_class->get_preview_size = gimp_item_get_preview_size; viewable_class->get_popup_size = gimp_item_get_popup_size; klass->removed = NULL; klass->visibility_changed = gimp_item_real_visibility_changed; klass->linked_changed = NULL; klass->lock_content_changed = NULL; klass->unset_removed = NULL; klass->is_attached = NULL; klass->is_content_locked = gimp_item_real_is_content_locked; klass->get_tree = NULL; klass->duplicate = gimp_item_real_duplicate; klass->convert = gimp_item_real_convert; klass->rename = gimp_item_real_rename; klass->translate = gimp_item_real_translate; klass->scale = gimp_item_real_scale; klass->resize = gimp_item_real_resize; klass->flip = NULL; klass->rotate = NULL; klass->transform = NULL; klass->stroke = NULL; klass->to_selection = NULL; klass->get_node = gimp_item_real_get_node; klass->default_name = NULL; klass->rename_desc = NULL; klass->translate_desc = NULL; klass->scale_desc = NULL; klass->resize_desc = NULL; klass->flip_desc = NULL; klass->rotate_desc = NULL; klass->transform_desc = NULL; g_object_class_install_property (object_class, PROP_IMAGE, g_param_spec_object ("image", NULL, NULL, GIMP_TYPE_IMAGE, GIMP_PARAM_READWRITE | G_PARAM_CONSTRUCT)); g_object_class_install_property (object_class, PROP_ID, g_param_spec_int ("id", NULL, NULL, 0, G_MAXINT, 0, GIMP_PARAM_READABLE)); g_object_class_install_property (object_class, PROP_WIDTH, g_param_spec_int ("width", NULL, NULL, 1, GIMP_MAX_IMAGE_SIZE, 1, GIMP_PARAM_READABLE)); g_object_class_install_property (object_class, PROP_HEIGHT, g_param_spec_int ("height", NULL, NULL, 1, GIMP_MAX_IMAGE_SIZE, 1, GIMP_PARAM_READABLE)); g_object_class_install_property (object_class, PROP_OFFSET_X, g_param_spec_int ("offset-x", NULL, NULL, -GIMP_MAX_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE, 0, GIMP_PARAM_READABLE)); g_object_class_install_property (object_class, PROP_OFFSET_Y, g_param_spec_int ("offset-y", NULL, NULL, -GIMP_MAX_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE, 0, GIMP_PARAM_READABLE)); g_object_class_install_property (object_class, PROP_VISIBLE, g_param_spec_boolean ("visible", NULL, NULL, TRUE, GIMP_PARAM_READABLE)); g_object_class_install_property (object_class, PROP_LINKED, g_param_spec_boolean ("linked", NULL, NULL, FALSE, GIMP_PARAM_READABLE)); g_object_class_install_property (object_class, PROP_LOCK_CONTENT, g_param_spec_boolean ("lock-content", NULL, NULL, FALSE, GIMP_PARAM_READABLE)); g_type_class_add_private (klass, sizeof (GimpItemPrivate)); } static void gimp_item_init (GimpItem *item) { GimpItemPrivate *private = GET_PRIVATE (item); g_object_force_floating (G_OBJECT (item)); private->ID = 0; private->tattoo = 0; private->image = NULL; private->parasites = gimp_parasite_list_new (); private->width = 0; private->height = 0; private->offset_x = 0; private->offset_y = 0; private->visible = TRUE; private->linked = FALSE; private->lock_content = FALSE; private->removed = FALSE; private->node = NULL; private->offset_node = NULL; } static void gimp_item_constructed (GObject *object) { GimpItemPrivate *private = GET_PRIVATE (object); if (G_OBJECT_CLASS (parent_class)->constructed) G_OBJECT_CLASS (parent_class)->constructed (object); g_assert (GIMP_IS_IMAGE (private->image)); g_assert (private->ID != 0); } static void gimp_item_finalize (GObject *object) { GimpItemPrivate *private = GET_PRIVATE (object); if (private->node) { g_object_unref (private->node); private->node = NULL; } if (private->image && private->image->gimp) { gimp_id_table_remove (private->image->gimp->item_table, private->ID); private->image = NULL; } if (private->parasites) { g_object_unref (private->parasites); private->parasites = NULL; } G_OBJECT_CLASS (parent_class)->finalize (object); } static void gimp_item_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { GimpItem *item = GIMP_ITEM (object); switch (property_id) { case PROP_IMAGE: gimp_item_set_image (item, g_value_get_object (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static void gimp_item_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { GimpItemPrivate *private = GET_PRIVATE (object); switch (property_id) { case PROP_IMAGE: g_value_set_object (value, private->image); break; case PROP_ID: g_value_set_int (value, private->ID); break; case PROP_WIDTH: g_value_set_int (value, private->width); break; case PROP_HEIGHT: g_value_set_int (value, private->height); break; case PROP_OFFSET_X: g_value_set_int (value, private->offset_x); break; case PROP_OFFSET_Y: g_value_set_int (value, private->offset_y); break; case PROP_VISIBLE: g_value_set_boolean (value, private->visible); break; case PROP_LINKED: g_value_set_boolean (value, private->linked); break; case PROP_LOCK_CONTENT: g_value_set_boolean (value, private->lock_content); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static gint64 gimp_item_get_memsize (GimpObject *object, gint64 *gui_size) { GimpItemPrivate *private = GET_PRIVATE (object); gint64 memsize = 0; memsize += gimp_object_get_memsize (GIMP_OBJECT (private->parasites), gui_size); return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object, gui_size); } static void gimp_item_real_visibility_changed (GimpItem *item) { GimpItemPrivate *private = GET_PRIVATE (item); if (! private->node) return; if (gimp_item_get_visible (item)) { /* Leave this up to subclasses */ } else { GeglNode *input = gegl_node_get_input_proxy (private->node, "input"); GeglNode *output = gegl_node_get_output_proxy (private->node, "output"); gegl_node_connect_to (input, "output", output, "input"); } } static gboolean gimp_item_real_is_content_locked (const GimpItem *item) { GimpItem *parent = gimp_item_get_parent (item); if (parent && gimp_item_is_content_locked (parent)) return TRUE; return GET_PRIVATE (item)->lock_content; } static GimpItem * gimp_item_real_duplicate (GimpItem *item, GType new_type) { GimpItemPrivate *private; GimpItem *new_item; gchar *new_name; g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); private = GET_PRIVATE (item); g_return_val_if_fail (GIMP_IS_IMAGE (private->image), NULL); g_return_val_if_fail (g_type_is_a (new_type, GIMP_TYPE_ITEM), NULL); /* formulate the new name */ { const gchar *name; gchar *ext; gint number; gint len; name = gimp_object_get_name (item); g_return_val_if_fail (name != NULL, NULL); ext = strrchr (name, '#'); len = strlen (_("copy")); if ((strlen (name) >= len && strcmp (&name[strlen (name) - len], _("copy")) == 0) || (ext && (number = atoi (ext + 1)) > 0 && ((int)(log10 (number) + 1)) == strlen (ext + 1))) { /* don't have redundant "copy"s */ new_name = g_strdup (name); } else { new_name = g_strdup_printf (_("%s copy"), name); } } new_item = gimp_item_new (new_type, gimp_item_get_image (item), new_name, private->offset_x, private->offset_y, gimp_item_get_width (item), gimp_item_get_height (item)); g_free (new_name); g_object_unref (GET_PRIVATE (new_item)->parasites); GET_PRIVATE (new_item)->parasites = gimp_parasite_list_copy (private->parasites); gimp_item_set_visible (new_item, gimp_item_get_visible (item), FALSE); gimp_item_set_linked (new_item, gimp_item_get_linked (item), FALSE); if (gimp_item_can_lock_content (new_item)) gimp_item_set_lock_content (new_item, gimp_item_get_lock_content (item), FALSE); return new_item; } static void gimp_item_real_convert (GimpItem *item, GimpImage *dest_image) { gimp_item_set_image (item, dest_image); } static gboolean gimp_item_real_rename (GimpItem *item, const gchar *new_name, const gchar *undo_desc, GError **error) { if (gimp_item_is_attached (item)) gimp_item_tree_rename_item (gimp_item_get_tree (item), item, new_name, TRUE, undo_desc); else gimp_object_set_name (GIMP_OBJECT (item), new_name); return TRUE; } static void gimp_item_real_translate (GimpItem *item, gint offset_x, gint offset_y, gboolean push_undo) { GimpItemPrivate *private = GET_PRIVATE (item); gimp_item_set_offset (item, private->offset_x + offset_x, private->offset_y + offset_y); } static void gimp_item_real_scale (GimpItem *item, gint new_width, gint new_height, gint new_offset_x, gint new_offset_y, GimpInterpolationType interpolation, GimpProgress *progress) { GimpItemPrivate *private = GET_PRIVATE (item); if (private->width != new_width) { private->width = new_width; g_object_notify (G_OBJECT (item), "width"); } if (private->height != new_height) { private->height = new_height; g_object_notify (G_OBJECT (item), "height"); } gimp_item_set_offset (item, new_offset_x, new_offset_y); } static void gimp_item_real_resize (GimpItem *item, GimpContext *context, gint new_width, gint new_height, gint offset_x, gint offset_y) { GimpItemPrivate *private = GET_PRIVATE (item); if (private->width != new_width) { private->width = new_width; g_object_notify (G_OBJECT (item), "width"); } if (private->height != new_height) { private->height = new_height; g_object_notify (G_OBJECT (item), "height"); } gimp_item_set_offset (item, private->offset_x - offset_x, private->offset_y - offset_y); } static GeglNode * gimp_item_real_get_node (GimpItem *item) { GimpItemPrivate *private = GET_PRIVATE (item); private->node = gegl_node_new (); return private->node; } static void gimp_item_sync_offset_node (GimpItem *item) { GimpItemPrivate *private = GET_PRIVATE (item); if (private->offset_node) gegl_node_set (private->offset_node, "x", (gdouble) private->offset_x, "y", (gdouble) private->offset_y, NULL); } /* public functions */ /** * gimp_item_new: * @type: The new item's type. * @image: The new item's #GimpImage. * @name: The name to assign the item. * @offset_x: The X offset to assign the item. * @offset_y: The Y offset to assign the item. * @width: The width to assign the item. * @height: The height to assign the item. * * Return value: The newly created item. */ GimpItem * gimp_item_new (GType type, GimpImage *image, const gchar *name, gint offset_x, gint offset_y, gint width, gint height) { GimpItem *item; GimpItemPrivate *private; g_return_val_if_fail (g_type_is_a (type, GIMP_TYPE_ITEM), NULL); g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL); g_return_val_if_fail (width > 0 && height > 0, NULL); item = g_object_new (type, "image", image, NULL); private = GET_PRIVATE (item); private->width = width; private->height = height; gimp_item_set_offset (item, offset_x, offset_y); if (name && strlen (name)) gimp_object_set_name (GIMP_OBJECT (item), name); else gimp_object_set_static_name (GIMP_OBJECT (item), GIMP_ITEM_GET_CLASS (item)->default_name); return item; } /** * gimp_item_remove: * @item: the #GimpItem to remove. * * This function sets the 'removed' flag on @item to #TRUE, and emits * a 'removed' signal on the item. */ void gimp_item_removed (GimpItem *item) { GimpContainer *children; g_return_if_fail (GIMP_IS_ITEM (item)); GET_PRIVATE (item)->removed = TRUE; children = gimp_viewable_get_children (GIMP_VIEWABLE (item)); if (children) gimp_container_foreach (children, (GFunc) gimp_item_removed, NULL); g_signal_emit (item, gimp_item_signals[REMOVED], 0); } /** * gimp_item_is_removed: * @item: the #GimpItem to check. * * Returns: %TRUE if the 'removed' flag is set for @item, %FALSE otherwise. */ gboolean gimp_item_is_removed (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); return GET_PRIVATE (item)->removed; } /** * gimp_item_unset_removed: * @item: a #GimpItem which was on the undo stack * * Unsets an item's "removed" state. This function is called when an * item was on the undo stack and is added back to its parent * container during and undo or redo. It must never be called from * anywhere else. **/ void gimp_item_unset_removed (GimpItem *item) { GimpContainer *children; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (gimp_item_is_removed (item)); GET_PRIVATE (item)->removed = FALSE; children = gimp_viewable_get_children (GIMP_VIEWABLE (item)); if (children) gimp_container_foreach (children, (GFunc) gimp_item_unset_removed, NULL); if (GIMP_ITEM_GET_CLASS (item)->unset_removed) GIMP_ITEM_GET_CLASS (item)->unset_removed (item); } /** * gimp_item_is_attached: * @item: The #GimpItem to check. * * Returns: %TRUE if the item is attached to an image, %FALSE otherwise. */ gboolean gimp_item_is_attached (const GimpItem *item) { GimpItem *parent; g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); parent = gimp_item_get_parent (item); if (parent) return gimp_item_is_attached (parent); return GIMP_ITEM_GET_CLASS (item)->is_attached (item); } GimpItem * gimp_item_get_parent (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); return GIMP_ITEM (gimp_viewable_get_parent (GIMP_VIEWABLE (item))); } GimpItemTree * gimp_item_get_tree (GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); if (GIMP_ITEM_GET_CLASS (item)->get_tree) return GIMP_ITEM_GET_CLASS (item)->get_tree (item); return NULL; } GimpContainer * gimp_item_get_container (GimpItem *item) { GimpItem *parent; GimpItemTree *tree; g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); parent = gimp_item_get_parent (item); if (parent) return gimp_viewable_get_children (GIMP_VIEWABLE (parent)); tree = gimp_item_get_tree (item); if (tree) return tree->container; return NULL; } GList * gimp_item_get_container_iter (GimpItem *item) { GimpContainer *container; g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); container = gimp_item_get_container (item); if (container) return GIMP_LIST (container)->list; return NULL; } gint gimp_item_get_index (GimpItem *item) { GimpContainer *container; g_return_val_if_fail (GIMP_IS_ITEM (item), -1); container = gimp_item_get_container (item); if (container) return gimp_container_get_child_index (container, GIMP_OBJECT (item)); return -1; } GList * gimp_item_get_path (GimpItem *item) { GimpContainer *container; GList *path = NULL; g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); g_return_val_if_fail (gimp_item_is_attached (item), NULL); container = gimp_item_get_container (item); while (container) { guint32 index = gimp_container_get_child_index (container, GIMP_OBJECT (item)); path = g_list_prepend (path, GUINT_TO_POINTER (index)); item = gimp_item_get_parent (item); if (item) container = gimp_item_get_container (item); else container = NULL; } return path; } /** * gimp_item_duplicate: * @item: The #GimpItem to duplicate. * @new_type: The type to make the new item. * * Returns: the newly created item. */ GimpItem * gimp_item_duplicate (GimpItem *item, GType new_type) { GimpItemPrivate *private; g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); private = GET_PRIVATE (item); g_return_val_if_fail (GIMP_IS_IMAGE (private->image), NULL); g_return_val_if_fail (g_type_is_a (new_type, GIMP_TYPE_ITEM), NULL); return GIMP_ITEM_GET_CLASS (item)->duplicate (item, new_type); } /** * gimp_item_convert: * @item: The #GimpItem to convert. * @dest_image: The #GimpImage in which to place the converted item. * @new_type: The type to convert the item to. * * Returns: the new item that results from the conversion. */ GimpItem * gimp_item_convert (GimpItem *item, GimpImage *dest_image, GType new_type) { GimpItem *new_item; g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); g_return_val_if_fail (GIMP_IS_IMAGE (GET_PRIVATE (item)->image), NULL); g_return_val_if_fail (GIMP_IS_IMAGE (dest_image), NULL); g_return_val_if_fail (g_type_is_a (new_type, GIMP_TYPE_ITEM), NULL); new_item = gimp_item_duplicate (item, new_type); if (new_item) GIMP_ITEM_GET_CLASS (new_item)->convert (new_item, dest_image); return new_item; } /** * gimp_item_rename: * @item: The #GimpItem to rename. * @new_name: The new name to give the item. * @error: Return location for error message. * * This function assigns a new name to the item, if the desired name is * different from the name it already has, and pushes an entry onto the * undo stack for the item's image. If @new_name is NULL or empty, the * default name for the item's class is used. If the name is changed, * the GimpObject::name-changed signal is emitted for the item. * * Returns: %TRUE if the @item could be renamed, %FALSE otherwise. */ gboolean gimp_item_rename (GimpItem *item, const gchar *new_name, GError **error) { GimpItemClass *item_class; g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); g_return_val_if_fail (error == NULL || *error == NULL, FALSE); item_class = GIMP_ITEM_GET_CLASS (item); if (! new_name || ! *new_name) new_name = item_class->default_name; if (strcmp (new_name, gimp_object_get_name (item))) return item_class->rename (item, new_name, item_class->rename_desc, error); return TRUE; } /** * gimp_item_get_width: * @item: The #GimpItem to check. * * Returns: The width of the item. */ gint gimp_item_get_width (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), -1); return GET_PRIVATE (item)->width; } /** * gimp_item_get_height: * @item: The #GimpItem to check. * * Returns: The height of the item. */ gint gimp_item_get_height (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), -1); return GET_PRIVATE (item)->height; } void gimp_item_set_size (GimpItem *item, gint width, gint height) { GimpItemPrivate *private; g_return_if_fail (GIMP_IS_ITEM (item)); private = GET_PRIVATE (item); if (private->width != width || private->height != height) { g_object_freeze_notify (G_OBJECT (item)); if (private->width != width) { private->width = width; g_object_notify (G_OBJECT (item), "width"); } if (private->height != height) { private->height = height; g_object_notify (G_OBJECT (item), "height"); } g_object_thaw_notify (G_OBJECT (item)); gimp_viewable_size_changed (GIMP_VIEWABLE (item)); } } /** * gimp_item_get_offset: * @item: The #GimpItem to check. * @offset_x: Return location for the item's X offset. * @offset_y: Return location for the item's Y offset. * * Reveals the X and Y offsets of the item. */ void gimp_item_get_offset (const GimpItem *item, gint *offset_x, gint *offset_y) { GimpItemPrivate *private; g_return_if_fail (GIMP_IS_ITEM (item)); private = GET_PRIVATE (item); if (offset_x) *offset_x = private->offset_x; if (offset_y) *offset_y = private->offset_y; } void gimp_item_set_offset (GimpItem *item, gint offset_x, gint offset_y) { GimpItemPrivate *private; g_return_if_fail (GIMP_IS_ITEM (item)); private = GET_PRIVATE (item); g_object_freeze_notify (G_OBJECT (item)); if (private->offset_x != offset_x) { private->offset_x = offset_x; g_object_notify (G_OBJECT (item), "offset-x"); } if (private->offset_y != offset_y) { private->offset_y = offset_y; g_object_notify (G_OBJECT (item), "offset-y"); } gimp_item_sync_offset_node (item); g_object_thaw_notify (G_OBJECT (item)); } gint gimp_item_get_offset_x (GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), 0); return GET_PRIVATE (item)->offset_x; } gint gimp_item_get_offset_y (GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), 0); return GET_PRIVATE (item)->offset_y; } /** * gimp_item_translate: * @item: The #GimpItem to move. * @offset_x: Increment to the X offset of the item. * @offset_y: Increment to the Y offset of the item. * @push_undo: If #TRUE, create an entry in the image's undo stack * for this action. * * Adds the specified increments to the X and Y offsets for the item. */ void gimp_item_translate (GimpItem *item, gint offset_x, gint offset_y, gboolean push_undo) { GimpItemClass *item_class; GimpImage *image; g_return_if_fail (GIMP_IS_ITEM (item)); item_class = GIMP_ITEM_GET_CLASS (item); image = gimp_item_get_image (item); if (! gimp_item_is_attached (item)) push_undo = FALSE; if (push_undo) gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_ITEM_DISPLACE, item_class->translate_desc); item_class->translate (item, offset_x, offset_y, push_undo); if (push_undo) gimp_image_undo_group_end (image); } /** * gimp_item_check_scaling: * @item: Item to check * @new_width: proposed width of item, in pixels * @new_height: proposed height of item, in pixels * * Scales item dimensions, then snaps them to pixel centers * * Returns: #FALSE if any dimension reduces to zero as a result * of this; otherwise, returns #TRUE. **/ gboolean gimp_item_check_scaling (const GimpItem *item, gint new_width, gint new_height) { GimpImage *image; gdouble img_scale_w; gdouble img_scale_h; gint new_item_width; gint new_item_height; g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); image = gimp_item_get_image (item); img_scale_w = ((gdouble) new_width / (gdouble) gimp_image_get_width (image)); img_scale_h = ((gdouble) new_height / (gdouble) gimp_image_get_height (image)); new_item_width = ROUND (img_scale_w * (gdouble) gimp_item_get_width (item)); new_item_height = ROUND (img_scale_h * (gdouble) gimp_item_get_height (item)); return (new_item_width > 0 && new_item_height > 0); } void gimp_item_scale (GimpItem *item, gint new_width, gint new_height, gint new_offset_x, gint new_offset_y, GimpInterpolationType interpolation, GimpProgress *progress) { GimpItemClass *item_class; GimpImage *image; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress)); if (new_width < 1 || new_height < 1) return; item_class = GIMP_ITEM_GET_CLASS (item); image = gimp_item_get_image (item); if (gimp_item_is_attached (item)) gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_ITEM_SCALE, item_class->scale_desc); g_object_freeze_notify (G_OBJECT (item)); item_class->scale (item, new_width, new_height, new_offset_x, new_offset_y, interpolation, progress); g_object_thaw_notify (G_OBJECT (item)); if (gimp_item_is_attached (item)) gimp_image_undo_group_end (image); } /** * gimp_item_scale_by_factors: * @item: Item to be transformed by explicit width and height factors. * @w_factor: scale factor to apply to width and horizontal offset * @h_factor: scale factor to apply to height and vertical offset * @interpolation: * @progress: * * Scales item dimensions and offsets by uniform width and * height factors. * * Use gimp_item_scale_by_factors() in circumstances when the same * width and height scaling factors are to be uniformly applied to a * set of items. In this context, the item's dimensions and offsets * from the sides of the containing image all change by these * predetermined factors. By fiat, the fixed point of the transform is * the upper left hand corner of the image. Returns #FALSE if a * requested scale factor is zero or if a scaling zero's out a item * dimension; returns #TRUE otherwise. * * Use gimp_item_scale() in circumstances where new item width * and height dimensions are predetermined instead. * * Side effects: Undo set created for item. Old item imagery * scaled & painted to new item tiles. * * Returns: #TRUE, if the scaled item has positive dimensions * #FALSE if the scaled item has at least one zero dimension **/ gboolean gimp_item_scale_by_factors (GimpItem *item, gdouble w_factor, gdouble h_factor, GimpInterpolationType interpolation, GimpProgress *progress) { GimpItemPrivate *private; gint new_width, new_height; gint new_offset_x, new_offset_y; g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE); private = GET_PRIVATE (item); if (w_factor == 0.0 || h_factor == 0.0) { g_warning ("%s: requested width or height scale equals zero", G_STRFUNC); return FALSE; } new_offset_x = ROUND (w_factor * (gdouble) private->offset_x); new_offset_y = ROUND (h_factor * (gdouble) private->offset_y); new_width = ROUND (w_factor * (gdouble) gimp_item_get_width (item)); new_height = ROUND (h_factor * (gdouble) gimp_item_get_height (item)); if (new_width != 0 && new_height != 0) { gimp_item_scale (item, new_width, new_height, new_offset_x, new_offset_y, interpolation, progress); return TRUE; } return FALSE; } /** * gimp_item_scale_by_origin: * @item: The item to be transformed by width & height scale factors * @new_width: The width that item will acquire * @new_height: The height that the item will acquire * @interpolation: * @progress: * @local_origin: sets fixed point of the scaling transform. See below. * * Sets item dimensions to new_width and * new_height. Derives vertical and horizontal scaling * transforms from new width and height. If local_origin is * #TRUE, the fixed point of the scaling transform coincides * with the item's center point. Otherwise, the fixed * point is taken to be [-GimpItem::offset_x, -GimpItem::->offset_y]. * * Since this function derives scale factors from new and * current item dimensions, these factors will vary from * item to item because of aliasing artifacts; factor * variations among items can be quite large where item * dimensions approach pixel dimensions. Use * gimp_item_scale_by_factors() where constant scales are to * be uniformly applied to a number of items. * * Side effects: undo set created for item. * Old item imagery scaled * & painted to new item tiles **/ void gimp_item_scale_by_origin (GimpItem *item, gint new_width, gint new_height, GimpInterpolationType interpolation, GimpProgress *progress, gboolean local_origin) { GimpItemPrivate *private; gint new_offset_x, new_offset_y; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress)); private = GET_PRIVATE (item); if (new_width == 0 || new_height == 0) { g_warning ("%s: requested width or height equals zero", G_STRFUNC); return; } if (local_origin) { new_offset_x = (private->offset_x + ((gimp_item_get_width (item) - new_width) / 2.0)); new_offset_y = (private->offset_y + ((gimp_item_get_height (item) - new_height) / 2.0)); } else { new_offset_x = (gint) (((gdouble) new_width * (gdouble) private->offset_x / (gdouble) gimp_item_get_width (item))); new_offset_y = (gint) (((gdouble) new_height * (gdouble) private->offset_y / (gdouble) gimp_item_get_height (item))); } gimp_item_scale (item, new_width, new_height, new_offset_x, new_offset_y, interpolation, progress); } void gimp_item_resize (GimpItem *item, GimpContext *context, gint new_width, gint new_height, gint offset_x, gint offset_y) { GimpItemClass *item_class; GimpImage *image; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (GIMP_IS_CONTEXT (context)); if (new_width < 1 || new_height < 1) return; item_class = GIMP_ITEM_GET_CLASS (item); image = gimp_item_get_image (item); if (gimp_item_is_attached (item)) gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_ITEM_RESIZE, item_class->resize_desc); g_object_freeze_notify (G_OBJECT (item)); item_class->resize (item, context, new_width, new_height, offset_x, offset_y); g_object_thaw_notify (G_OBJECT (item)); if (gimp_item_is_attached (item)) gimp_image_undo_group_end (image); } void gimp_item_flip (GimpItem *item, GimpContext *context, GimpOrientationType flip_type, gdouble axis, gboolean clip_result) { GimpItemClass *item_class; GimpImage *image; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (gimp_item_is_attached (item)); g_return_if_fail (GIMP_IS_CONTEXT (context)); item_class = GIMP_ITEM_GET_CLASS (item); image = gimp_item_get_image (item); gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TRANSFORM, item_class->flip_desc); g_object_freeze_notify (G_OBJECT (item)); item_class->flip (item, context, flip_type, axis, clip_result); g_object_thaw_notify (G_OBJECT (item)); gimp_image_undo_group_end (image); } void gimp_item_rotate (GimpItem *item, GimpContext *context, GimpRotationType rotate_type, gdouble center_x, gdouble center_y, gboolean clip_result) { GimpItemClass *item_class; GimpImage *image; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (gimp_item_is_attached (item)); g_return_if_fail (GIMP_IS_CONTEXT (context)); item_class = GIMP_ITEM_GET_CLASS (item); image = gimp_item_get_image (item); gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TRANSFORM, item_class->rotate_desc); g_object_freeze_notify (G_OBJECT (item)); item_class->rotate (item, context, rotate_type, center_x, center_y, clip_result); g_object_thaw_notify (G_OBJECT (item)); gimp_image_undo_group_end (image); } void gimp_item_transform (GimpItem *item, GimpContext *context, const GimpMatrix3 *matrix, GimpTransformDirection direction, GimpInterpolationType interpolation, gint recursion_level, GimpTransformResize clip_result, GimpProgress *progress) { GimpItemClass *item_class; GimpImage *image; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (gimp_item_is_attached (item)); g_return_if_fail (GIMP_IS_CONTEXT (context)); g_return_if_fail (matrix != NULL); g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress)); item_class = GIMP_ITEM_GET_CLASS (item); image = gimp_item_get_image (item); gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TRANSFORM, item_class->transform_desc); g_object_freeze_notify (G_OBJECT (item)); item_class->transform (item, context, matrix, direction, interpolation, recursion_level, clip_result, progress); g_object_thaw_notify (G_OBJECT (item)); gimp_image_undo_group_end (image); } gboolean gimp_item_stroke (GimpItem *item, GimpDrawable *drawable, GimpContext *context, GimpStrokeOptions *stroke_options, gboolean use_default_values, gboolean push_undo, GimpProgress *progress, GError **error) { GimpItemClass *item_class; gboolean retval = FALSE; g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); g_return_val_if_fail (gimp_item_is_attached (item), FALSE); g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE); g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), FALSE); g_return_val_if_fail (GIMP_IS_CONTEXT (context), FALSE); g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (stroke_options), FALSE); g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE); g_return_val_if_fail (error == NULL || *error == NULL, FALSE); item_class = GIMP_ITEM_GET_CLASS (item); if (item_class->stroke) { GimpImage *image = gimp_item_get_image (item); gimp_stroke_options_prepare (stroke_options, context, use_default_values); if (push_undo) gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_PAINT, item_class->stroke_desc); retval = item_class->stroke (item, drawable, stroke_options, push_undo, progress, error); if (push_undo) gimp_image_undo_group_end (image); gimp_stroke_options_finish (stroke_options); } return retval; } void gimp_item_to_selection (GimpItem *item, GimpChannelOps op, gboolean antialias, gboolean feather, gdouble feather_radius_x, gdouble feather_radius_y) { GimpItemClass *item_class; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (gimp_item_is_attached (item)); item_class = GIMP_ITEM_GET_CLASS (item); if (item_class->to_selection) item_class->to_selection (item, op, antialias, feather, feather_radius_x, feather_radius_y); } GeglNode * gimp_item_get_node (GimpItem *item) { GimpItemPrivate *private; g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); private = GET_PRIVATE (item); if (private->node) return private->node; return GIMP_ITEM_GET_CLASS (item)->get_node (item); } GeglNode * gimp_item_peek_node (GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); return GET_PRIVATE (item)->node; } GeglNode * gimp_item_get_offset_node (GimpItem *item) { GimpItemPrivate *private; g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); private = GET_PRIVATE (item); if (! private->offset_node) { GeglNode *node = gimp_item_get_node (item); private->offset_node = gegl_node_new_child (node, "operation", "gegl:translate", "x", (gdouble) private->offset_x, "y", (gdouble) private->offset_y, NULL); } return private->offset_node; } gint gimp_item_get_ID (GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), -1); return GET_PRIVATE (item)->ID; } GimpItem * gimp_item_get_by_ID (Gimp *gimp, gint item_id) { g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL); if (gimp->item_table == NULL) return NULL; return (GimpItem *) gimp_id_table_lookup (gimp->item_table, item_id); } GimpTattoo gimp_item_get_tattoo (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), 0); return GET_PRIVATE (item)->tattoo; } void gimp_item_set_tattoo (GimpItem *item, GimpTattoo tattoo) { g_return_if_fail (GIMP_IS_ITEM (item)); GET_PRIVATE (item)->tattoo = tattoo; } GimpImage * gimp_item_get_image (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); return GET_PRIVATE (item)->image; } void gimp_item_set_image (GimpItem *item, GimpImage *image) { GimpItemPrivate *private; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (! gimp_item_is_attached (item)); g_return_if_fail (! gimp_item_is_removed (item)); g_return_if_fail (GIMP_IS_IMAGE (image)); private = GET_PRIVATE (item); if (image == private->image) return; g_object_freeze_notify (G_OBJECT (item)); if (private->ID == 0) { private->ID = gimp_id_table_insert (image->gimp->item_table, item); g_object_notify (G_OBJECT (item), "id"); } if (private->tattoo == 0 || private->image != image) { private->tattoo = gimp_image_get_new_tattoo (image); } private->image = image; g_object_notify (G_OBJECT (item), "image"); g_object_thaw_notify (G_OBJECT (item)); } /** * gimp_item_replace_item: * @item: a newly allocated #GimpItem * @replace: the #GimpItem to be replaced by @item * * This function shouly only be called right after @item has been * newly allocated. * * Replaces @replace by @item, as far as possible within the #GimpItem * class. The new @item takes over @replace's ID, tattoo, offset, size * etc. and all these properties are set to %NULL on @replace. * * This function *only* exists to allow subclasses to do evil hacks * like in XCF text layer loading. Don't ever use this function if you * are not sure. * * After this function returns, @replace has become completely * unusable, should only be used to steal everything it has (like its * drawable properties if it's a drawable), and then be destroyed. **/ void gimp_item_replace_item (GimpItem *item, GimpItem *replace) { GimpItemPrivate *private; gint offset_x; gint offset_y; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (! gimp_item_is_attached (item)); g_return_if_fail (! gimp_item_is_removed (item)); g_return_if_fail (GIMP_IS_ITEM (replace)); private = GET_PRIVATE (item); gimp_object_set_name (GIMP_OBJECT (item), gimp_object_get_name (replace)); if (private->ID) gimp_id_table_remove (gimp_item_get_image (item)->gimp->item_table, gimp_item_get_ID (item)); private->ID = gimp_item_get_ID (replace); gimp_id_table_replace (gimp_item_get_image (item)->gimp->item_table, gimp_item_get_ID (item), item); /* Set image before tatoo so that the explicitly set tatoo overrides * the one implicitly set when setting the image */ gimp_item_set_image (item, gimp_item_get_image (replace)); GET_PRIVATE (replace)->image = NULL; gimp_item_set_tattoo (item, gimp_item_get_tattoo (replace)); gimp_item_set_tattoo (replace, 0); g_object_unref (private->parasites); private->parasites = GET_PRIVATE (replace)->parasites; GET_PRIVATE (replace)->parasites = NULL; gimp_item_get_offset (replace, &offset_x, &offset_y); gimp_item_set_offset (item, offset_x, offset_y); gimp_item_set_size (item, gimp_item_get_width (replace), gimp_item_get_height (replace)); gimp_item_set_visible (item, gimp_item_get_visible (replace), FALSE); gimp_item_set_linked (item, gimp_item_get_linked (replace), FALSE); gimp_item_set_lock_content (item, gimp_item_get_lock_content (replace), FALSE); } /** * gimp_item_set_parasites: * @item: a #GimpItem * @parasites: a #GimpParasiteList * * Set an @item's #GimpParasiteList. It's usually never needed to * fiddle with an item's parasite list directly. This function exists * for special purposes only, like when creating items from unusual * sources. **/ void gimp_item_set_parasites (GimpItem *item, GimpParasiteList *parasites) { GimpItemPrivate *private; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (GIMP_IS_PARASITE_LIST (parasites)); private = GET_PRIVATE (item); if (parasites != private->parasites) { g_object_unref (private->parasites); private->parasites = g_object_ref (parasites); } } /** * gimp_item_get_parasites: * @item: a #GimpItem * * Get an @item's #GimpParasiteList. It's usually never needed to * fiddle with an item's parasite list directly. This function exists * for special purposes only, like when saving an item to XCF. * * Return value: The @item's #GimpParasiteList. **/ GimpParasiteList * gimp_item_get_parasites (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); return GET_PRIVATE (item)->parasites; } void gimp_item_parasite_attach (GimpItem *item, const GimpParasite *parasite, gboolean push_undo) { GimpItemPrivate *private; GimpParasite copy; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (parasite != NULL); private = GET_PRIVATE (item); /* make a temporary copy of the GimpParasite struct because * gimp_parasite_shift_parent() changes it */ copy = *parasite; if (! gimp_item_is_attached (item)) push_undo = FALSE; if (push_undo) { /* only set the dirty bit manually if we can be saved and the new * parasite differs from the current one and we aren't undoable */ if (gimp_parasite_is_undoable (©)) { /* do a group in case we have attach_parent set */ gimp_image_undo_group_start (private->image, GIMP_UNDO_GROUP_PARASITE_ATTACH, C_("undo-type", "Attach Parasite")); gimp_image_undo_push_item_parasite (private->image, NULL, item, ©); } else if (gimp_parasite_is_persistent (©) && ! gimp_parasite_compare (©, gimp_item_parasite_find (item, gimp_parasite_name (©)))) { gimp_image_undo_push_cantundo (private->image, C_("undo-type", "Attach Parasite to Item")); } } gimp_parasite_list_add (private->parasites, ©); if (gimp_parasite_has_flag (©, GIMP_PARASITE_ATTACH_PARENT)) { gimp_parasite_shift_parent (©); gimp_image_parasite_attach (private->image, ©); } else if (gimp_parasite_has_flag (©, GIMP_PARASITE_ATTACH_GRANDPARENT)) { gimp_parasite_shift_parent (©); gimp_parasite_shift_parent (©); gimp_parasite_attach (private->image->gimp, ©); } if (gimp_item_is_attached (item) && gimp_parasite_is_undoable (©)) { gimp_image_undo_group_end (private->image); } } void gimp_item_parasite_detach (GimpItem *item, const gchar *name, gboolean push_undo) { GimpItemPrivate *private; const GimpParasite *parasite; g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (name != NULL); private = GET_PRIVATE (item); parasite = gimp_parasite_list_find (private->parasites, name); if (! parasite) return; if (! gimp_item_is_attached (item)) push_undo = FALSE; if (push_undo) { if (gimp_parasite_is_undoable (parasite)) { gimp_image_undo_push_item_parasite_remove (private->image, C_("undo-type", "Remove Parasite from Item"), item, gimp_parasite_name (parasite)); } else if (gimp_parasite_is_persistent (parasite)) { gimp_image_undo_push_cantundo (private->image, C_("undo-type", "Remove Parasite from Item")); } } gimp_parasite_list_remove (private->parasites, name); } const GimpParasite * gimp_item_parasite_find (const GimpItem *item, const gchar *name) { g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); return gimp_parasite_list_find (GET_PRIVATE (item)->parasites, name); } static void gimp_item_parasite_list_foreach_func (gchar *name, GimpParasite *parasite, gchar ***cur) { *(*cur)++ = (gchar *) g_strdup (name); } gchar ** gimp_item_parasite_list (const GimpItem *item, gint *count) { GimpItemPrivate *private; gchar **list; gchar **cur; g_return_val_if_fail (GIMP_IS_ITEM (item), NULL); g_return_val_if_fail (count != NULL, NULL); private = GET_PRIVATE (item); *count = gimp_parasite_list_length (private->parasites); cur = list = g_new (gchar *, *count); gimp_parasite_list_foreach (private->parasites, (GHFunc) gimp_item_parasite_list_foreach_func, &cur); return list; } void gimp_item_set_visible (GimpItem *item, gboolean visible, gboolean push_undo) { g_return_if_fail (GIMP_IS_ITEM (item)); visible = visible ? TRUE : FALSE; if (gimp_item_get_visible (item) != visible) { if (push_undo && gimp_item_is_attached (item)) { GimpImage *image = gimp_item_get_image (item); if (image) gimp_image_undo_push_item_visibility (image, NULL, item); } GET_PRIVATE (item)->visible = visible; g_signal_emit (item, gimp_item_signals[VISIBILITY_CHANGED], 0); g_object_notify (G_OBJECT (item), "visible"); } } gboolean gimp_item_get_visible (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); return GET_PRIVATE (item)->visible; } gboolean gimp_item_is_visible (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); if (gimp_item_get_visible (item)) { GimpItem *parent = gimp_item_get_parent (item); if (parent) return gimp_item_is_visible (parent); return TRUE; } return FALSE; } void gimp_item_set_linked (GimpItem *item, gboolean linked, gboolean push_undo) { g_return_if_fail (GIMP_IS_ITEM (item)); linked = linked ? TRUE : FALSE; if (gimp_item_get_linked (item) != linked) { if (push_undo && gimp_item_is_attached (item)) { GimpImage *image = gimp_item_get_image (item); if (image) gimp_image_undo_push_item_linked (image, NULL, item); } GET_PRIVATE (item)->linked = linked; g_signal_emit (item, gimp_item_signals[LINKED_CHANGED], 0); g_object_notify (G_OBJECT (item), "linked"); } } gboolean gimp_item_get_linked (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); return GET_PRIVATE (item)->linked; } void gimp_item_set_lock_content (GimpItem *item, gboolean lock_content, gboolean push_undo) { g_return_if_fail (GIMP_IS_ITEM (item)); g_return_if_fail (gimp_item_can_lock_content (item)); lock_content = lock_content ? TRUE : FALSE; if (gimp_item_get_lock_content (item) != lock_content) { if (push_undo && gimp_item_is_attached (item)) { /* Right now I don't think this should be pushed. */ #if 0 GimpImage *image = gimp_item_get_image (item); gimp_image_undo_push_item_lock_content (image, NULL, item); #endif } GET_PRIVATE (item)->lock_content = lock_content; g_signal_emit (item, gimp_item_signals[LOCK_CONTENT_CHANGED], 0); g_object_notify (G_OBJECT (item), "lock-content"); } } gboolean gimp_item_get_lock_content (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); return GET_PRIVATE (item)->lock_content; } gboolean gimp_item_can_lock_content (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); return TRUE; } gboolean gimp_item_is_content_locked (const GimpItem *item) { g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); return GIMP_ITEM_GET_CLASS (item)->is_content_locked (item); } gboolean gimp_item_mask_bounds (GimpItem *item, gint *x1, gint *y1, gint *x2, gint *y2) { GimpImage *image; GimpChannel *selection; gint tmp_x1, tmp_y1; gint tmp_x2, tmp_y2; gboolean retval; g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); g_return_val_if_fail (gimp_item_is_attached (item), FALSE); image = gimp_item_get_image (item); selection = gimp_image_get_mask (image); if (GIMP_ITEM (selection) != item && gimp_channel_bounds (selection, &tmp_x1, &tmp_y1, &tmp_x2, &tmp_y2)) { gint off_x, off_y; gimp_item_get_offset (item, &off_x, &off_y); tmp_x1 = CLAMP (tmp_x1 - off_x, 0, gimp_item_get_width (item)); tmp_y1 = CLAMP (tmp_y1 - off_y, 0, gimp_item_get_height (item)); tmp_x2 = CLAMP (tmp_x2 - off_x, 0, gimp_item_get_width (item)); tmp_y2 = CLAMP (tmp_y2 - off_y, 0, gimp_item_get_height (item)); retval = TRUE; } else { tmp_x1 = 0; tmp_y1 = 0; tmp_x2 = gimp_item_get_width (item); tmp_y2 = gimp_item_get_height (item); retval = FALSE; } if (x1) *x1 = tmp_x1; if (y1) *y1 = tmp_y1; if (x2) *x2 = tmp_x2; if (y2) *y2 = tmp_y2; return retval;; } gboolean gimp_item_mask_intersect (GimpItem *item, gint *x, gint *y, gint *width, gint *height) { GimpImage *image; GimpChannel *selection; gint tmp_x, tmp_y; gint tmp_width, tmp_height; gboolean retval; g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); g_return_val_if_fail (gimp_item_is_attached (item), FALSE); image = gimp_item_get_image (item); selection = gimp_image_get_mask (image); if (GIMP_ITEM (selection) != item && gimp_channel_bounds (selection, &tmp_x, &tmp_y, &tmp_width, &tmp_height)) { gint off_x, off_y; gimp_item_get_offset (item, &off_x, &off_y); tmp_width -= tmp_x; tmp_height -= tmp_y; retval = gimp_rectangle_intersect (tmp_x - off_x, tmp_y - off_y, tmp_width, tmp_height, 0, 0, gimp_item_get_width (item), gimp_item_get_height (item), &tmp_x, &tmp_y, &tmp_width, &tmp_height); } else { tmp_x = 0; tmp_y = 0; tmp_width = gimp_item_get_width (item); tmp_height = gimp_item_get_height (item); retval = TRUE; } if (x) *x = tmp_x; if (y) *y = tmp_y; if (width) *width = tmp_width; if (height) *height = tmp_height; return retval; } gboolean gimp_item_is_in_set (GimpItem *item, GimpItemSet set) { GimpItemPrivate *private; g_return_val_if_fail (GIMP_IS_ITEM (item), FALSE); private = GET_PRIVATE (item); switch (set) { case GIMP_ITEM_SET_NONE: return FALSE; case GIMP_ITEM_SET_ALL: return TRUE; case GIMP_ITEM_SET_IMAGE_SIZED: return (gimp_item_get_width (item) == gimp_image_get_width (private->image) && gimp_item_get_height (item) == gimp_image_get_height (private->image)); case GIMP_ITEM_SET_VISIBLE: return gimp_item_get_visible (item); case GIMP_ITEM_SET_LINKED: return gimp_item_get_linked (item); } return FALSE; }