/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * e-tree-memory-callbacks.c * Copyright 2000, 2001, Ximian, Inc. * * Authors: * Chris Lahey * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License, version 2, as published by the Free Software Foundation. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA * 02111-1307, USA. */ #include #include #include "gal/util/e-util.h" #include "e-tree-memory-callbacks.h" #define PARENT_TYPE E_TREE_MEMORY_TYPE static GdkPixbuf * etmc_icon_at (ETreeModel *etm, ETreePath node) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); return etmc->icon_at (etm, node, etmc->model_data); } static int etmc_column_count (ETreeModel *etm) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->column_count) return etmc->column_count (etm, etmc->model_data); else return 0; } static gboolean etmc_has_save_id (ETreeModel *etm) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->has_save_id) return etmc->has_save_id (etm, etmc->model_data); else return FALSE; } static char * etmc_get_save_id (ETreeModel *etm, ETreePath node) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->get_save_id) return etmc->get_save_id (etm, node, etmc->model_data); else return NULL; } static gboolean etmc_has_get_node_by_id (ETreeModel *etm) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->has_get_node_by_id) return etmc->has_get_node_by_id (etm, etmc->model_data); else return FALSE; } static ETreePath etmc_get_node_by_id (ETreeModel *etm, const char *save_id) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->get_node_by_id) return etmc->get_node_by_id (etm, save_id, etmc->model_data); else return NULL; } static void * etmc_value_at (ETreeModel *etm, ETreePath node, int col) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); return etmc->value_at (etm, node, col, etmc->model_data); } static void etmc_set_value_at (ETreeModel *etm, ETreePath node, int col, const void *val) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); etmc->set_value_at (etm, node, col, val, etmc->model_data); } static gboolean etmc_is_editable (ETreeModel *etm, ETreePath node, int col) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); return etmc->is_editable (etm, node, col, etmc->model_data); } /* The default for etmc_duplicate_value is to return the raw value. */ static void * etmc_duplicate_value (ETreeModel *etm, int col, const void *value) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->duplicate_value) return etmc->duplicate_value (etm, col, value, etmc->model_data); else return (void *)value; } static void etmc_free_value (ETreeModel *etm, int col, void *value) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->free_value) etmc->free_value (etm, col, value, etmc->model_data); } static void * etmc_initialize_value (ETreeModel *etm, int col) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->initialize_value) return etmc->initialize_value (etm, col, etmc->model_data); else return NULL; } static gboolean etmc_value_is_empty (ETreeModel *etm, int col, const void *value) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->value_is_empty) return etmc->value_is_empty (etm, col, value, etmc->model_data); else return FALSE; } static char * etmc_value_to_string (ETreeModel *etm, int col, const void *value) { ETreeMemoryCallbacks *etmc = E_TREE_MEMORY_CALLBACKS(etm); if (etmc->value_to_string) return etmc->value_to_string (etm, col, value, etmc->model_data); else return g_strdup (""); } static void e_tree_memory_callbacks_class_init (GtkObjectClass *object_class) { ETreeModelClass *model_class = (ETreeModelClass *) object_class; model_class->icon_at = etmc_icon_at; model_class->column_count = etmc_column_count; model_class->has_save_id = etmc_has_save_id; model_class->get_save_id = etmc_get_save_id; model_class->has_get_node_by_id = etmc_has_get_node_by_id; model_class->get_node_by_id = etmc_get_node_by_id; model_class->value_at = etmc_value_at; model_class->set_value_at = etmc_set_value_at; model_class->is_editable = etmc_is_editable; model_class->duplicate_value = etmc_duplicate_value; model_class->free_value = etmc_free_value; model_class->initialize_value = etmc_initialize_value; model_class->value_is_empty = etmc_value_is_empty; model_class->value_to_string = etmc_value_to_string; } E_MAKE_TYPE(e_tree_memory_callbacks, "ETreeMemoryCallbacks", ETreeMemoryCallbacks, e_tree_memory_callbacks_class_init, NULL, PARENT_TYPE) /** * e_tree_memory_callbacks_new: * * This initializes a new ETreeMemoryCallbacksModel object. * ETreeMemoryCallbacksModel is an implementaiton of the somewhat * abstract class ETreeMemory. The ETreeMemoryCallbacksModel is * designed to allow people to easily create ETreeMemorys without * having to create a new GtkType derived from ETreeMemory every time * they need one. * * Instead, ETreeMemoryCallbacksModel uses a setup based in callback functions, every * callback function signature mimics the signature of each ETreeModel method * and passes the extra @data pointer to each one of the method to provide them * with any context they might want to use. * * ETreeMemoryCallbacks is to ETreeMemory as ETableSimple is to ETableModel. * * Return value: An ETreeMemoryCallbacks object (which is also an * ETreeMemory and thus an ETreeModel object). * */ ETreeModel * e_tree_memory_callbacks_new (ETreeMemoryCallbacksIconAtFn icon_at, ETreeMemoryCallbacksColumnCountFn column_count, ETreeMemoryCallbacksHasSaveIdFn has_save_id, ETreeMemoryCallbacksGetSaveIdFn get_save_id, ETreeMemoryCallbacksHasGetNodeByIdFn has_get_node_by_id, ETreeMemoryCallbacksGetNodeByIdFn get_node_by_id, ETreeMemoryCallbacksValueAtFn value_at, ETreeMemoryCallbacksSetValueAtFn set_value_at, ETreeMemoryCallbacksIsEditableFn is_editable, ETreeMemoryCallbacksDuplicateValueFn duplicate_value, ETreeMemoryCallbacksFreeValueFn free_value, ETreeMemoryCallbacksInitializeValueFn initialize_value, ETreeMemoryCallbacksValueIsEmptyFn value_is_empty, ETreeMemoryCallbacksValueToStringFn value_to_string, gpointer model_data) { ETreeMemoryCallbacks *etmc; etmc = g_object_new (E_TREE_MEMORY_CALLBACKS_TYPE, NULL); etmc->icon_at = icon_at; etmc->column_count = column_count; etmc->has_save_id = has_save_id; etmc->get_save_id = get_save_id; etmc->has_get_node_by_id = has_get_node_by_id; etmc->get_node_by_id = get_node_by_id; etmc->value_at = value_at; etmc->set_value_at = set_value_at; etmc->is_editable = is_editable; etmc->duplicate_value = duplicate_value; etmc->free_value = free_value; etmc->initialize_value = initialize_value; etmc->value_is_empty = value_is_empty; etmc->value_to_string = value_to_string; etmc->model_data = model_data; return (ETreeModel*)etmc; } iri2003-05-061-1/+1 * Add missing directorieskris2003-04-051-0/+4 * Clear moonlight beckons.ade2003-03-072-1/+1 * Removed MASTER_SITE_PORTS_JP from misc/man.el, the files referededwin2002-12-271-2/+1 * Use ${ECHO_CMD} instead of ${ECHO} where you mean the echo command;knu2002-01-29