static void gimp_display_shell_drop_component (GtkWidget *widget, gint x, gint y, GimpImage *image, GimpChannelType component, gpointer data) { GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data); GimpImage *dest_image = gimp_display_get_image (shell->display); GimpChannel *channel; GimpItem *new_item; const gchar *desc; GIMP_LOG (DND, NULL); if (shell->display->gimp->busy) return; if (! dest_image) { dest_image = gimp_image_new_from_component (image->gimp, image, component); gimp_create_display (dest_image->gimp, dest_image, GIMP_UNIT_PIXEL, 1.0, G_OBJECT (gtk_widget_get_screen (widget)), gimp_widget_get_monitor (widget)); g_object_unref (dest_image); return; } channel = gimp_channel_new_from_component (image, component, NULL, NULL); new_item = gimp_item_convert (GIMP_ITEM (channel), dest_image, GIMP_TYPE_LAYER); g_object_unref (channel); if (new_item) { GimpLayer *new_layer = GIMP_LAYER (new_item); gimp_enum_get_value (GIMP_TYPE_CHANNEL_TYPE, component, NULL, NULL, &desc, NULL); gimp_object_take_name (GIMP_OBJECT (new_layer), g_strdup_printf (_("%s Channel Copy"), desc)); gimp_image_undo_group_start (dest_image, GIMP_UNDO_GROUP_EDIT_PASTE, _("Drop New Layer")); gimp_display_shell_dnd_position_item (shell, image, new_item); gimp_image_add_layer (dest_image, new_layer, GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE); gimp_image_undo_group_end (dest_image); gimp_display_shell_dnd_flush (shell, dest_image); } }
void gimp_channel_select_component (GimpChannel *channel, GimpChannelType component, GimpChannelOps op, gboolean feather, gdouble feather_radius_x, gdouble feather_radius_y) { GimpItem *item; GimpChannel *add_on; const gchar *desc; gchar *undo_desc; g_return_if_fail (GIMP_IS_CHANNEL (channel)); g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (channel))); item = GIMP_ITEM (channel); add_on = gimp_channel_new_from_component (gimp_item_get_image (item), component, NULL, NULL); if (feather) gimp_channel_feather (add_on, feather_radius_x, feather_radius_y, FALSE /* no undo */); gimp_enum_get_value (GIMP_TYPE_CHANNEL_TYPE, component, NULL, NULL, &desc, NULL); undo_desc = g_strdup_printf (C_("undo-type", "%s Channel to Selection"), desc); gimp_channel_select_channel (channel, undo_desc, add_on, 0, 0, op, FALSE, 0.0, 0.0); g_free (undo_desc); g_object_unref (add_on); }
static GValueArray * channel_new_from_component_invoker (GimpProcedure *procedure, Gimp *gimp, GimpContext *context, GimpProgress *progress, const GValueArray *args, GError **error) { gboolean success = TRUE; GValueArray *return_vals; GimpImage *image; gint32 component; const gchar *name; GimpChannel *channel = NULL; image = gimp_value_get_image (&args->values[0], gimp); component = g_value_get_enum (&args->values[1]); name = g_value_get_string (&args->values[2]); if (success) { if (gimp_image_get_component_index (image, component) != -1) channel = gimp_channel_new_from_component (image, component, name, NULL); if (channel) gimp_item_set_visible (GIMP_ITEM (channel), FALSE, FALSE); else success = FALSE; } return_vals = gimp_procedure_get_return_values (procedure, success, error ? *error : NULL); if (success) gimp_value_set_channel (&return_vals->values[1], channel); return return_vals; }